Log Interpretation Charts Compact™ Tool Series - …estimulacion.angelfire.com/chart_micro_wft051974.pdf · The chart allows F to be generated from porosity for values of m between

Log Interpretation Charts™Compact Tool Series

1© 2007 Weatherford. All rights reserved.

Contents

Borehole Environment and Formation Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Estimation of Formation Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Estimation of R and R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mf mfe

Porosity and Formation Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Resistivity of Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Resistivity of NaCl Solutions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Maximum Tool Length in Deviated Wells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Density and Pe Values of Saltwater Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Capture Cross Sections for Water and Hydrocarbons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

R Determination From Static SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12we

SP Bed Thickness Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

R vs. R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15w we

Compact™ Spectral Gamma Ray Borehole Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Compact Spectral Gamma Ray KCI Mud Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Compact Gamma Ray Borehole Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Compact Array Induction Borehole Correction—Shallow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Compact Array Induction Borehole Correction—Medium. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Compact Array Induction Borehole Correction—Deep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Compact Array Induction Tornado Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Compact Focused Electric Borehole Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Compact Deep Laterolog Borehole Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Compact Shallow Laterolog Borehole Correction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Compact Laterolog Tornado Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Compact Deep Laterolog Borehole Correlation—Shuttle Deployed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Compact Shallow Laterolog Borehole Correction—Shuttle Deployed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Compact Laterolog Tornado Chart—Shuttle Deployed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Compact MicroLaterolog Mudcake Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Compact Neutron Porosity Charts—Explanatory Note. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Compact Neutron Porosity Matrix Transforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Compact Neutron Porosity Environmental Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Compact Neutron Porosity Matrix Cross Section Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Compact Neutron Porosity Formation Salinity Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Compact Neutron Porosity Cased-Hole Corrections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Compact Neutron Porosity Environmental Correction Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Lithology-Porosity from Density-Neutron Crossplot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Lithology-Porosity from Sonic-Neutron Crossplot. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Porosity and Saturation from Density-Neutron Porosity Plot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Lithology-Porosity from Density-Pe Crossplot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Matrix Identification from the PhotoDensity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Log Responses in Common Rocks and Minerals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Compact Curve Mnemonics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

2 © 2007 Weatherford. All rights reserved.

Borehole Environment and Formation Parameters

Chart Gen-1


Estimation of Formation Temperature

Chart Gen-2

English

°Follow the 1.2 F/100 ft geothermal gradient line to 10,000 ft, and draw a vertical line down to intersect at 180 F.°

°1.2 F/100 ft.

2,500

5,000

7,500


Estimation of Formation Temperature

Chart Gen-2(m)

Metric

1,000

2,000

3,000

4,000

5,000

6,000

7,000


Estimation of R and Rmf mfe

Chart Gen-3


Porosity and Formation Factor

Chart Gen-5

1 2 3 4 5 6 7 8 9 10 20 30 40 50

Porosity, ( pu )

1

10

100

Fo

rmatio

n F

acto

r, F

m=2.8

m=2.2

m=2.4

m=2.6

m=1.4

m=1.6

m=1.8

m=2.0

Formation factor, F, is defined as R /R , where R is the resistivity of a formation fully o w o

saturated with water of resistivity Rw. It is related to formation porosity via a number of

empirical relationships of the form

where m is the cementation exponent and a is sometimes called the Archie constant. nF is used to compute water saturation in the Archie equation: S = FR / R. w w t

The chart allows F to be generated from porosity for values of m between 1.4 and 2.8

assuming a to be 1.0. For soft formations, the Humble formula is sometimes used, in which a is 0.62 and m is 2.15.

F = a

m

10,000

1,000


Resistivity of Solutions

Chart Gen-6

Chart Gen-7 is used to estimate the resistivity of NaCl equivalent solutions when the solids concentration is known, and also to convert resistivity from one temperature to another.

It is based on the Hilchie equation:

R(T) = R(1) [T(1) + x] / (T+x)

-(0.340396 log R(1) - 0.641427)where x = 10 10

and R(T) is the water resistivity at temperature T in degrees F and R(1) is the initial water resistivity at initial temperature T(1) degrees F.

For solutions other than NaCl use the multipliers in Gen-6 to obtain equivalent concentrations. Then:

i=1 Total NaCl equivalent = K ( s olids con centration)ii=n

where n is the number of components. The multiplier for NaCl is 1.0

–0.5

0.0

0.5

1.0

1.5

2.0

10 100

Total Solids Concentration (ppm or mg/kg)

Mu

ltip

lier

(K

)

NH4

NO3Br

I

Ca

HCO3

SO4

Mg

CO3

K

NaCl

1,000 10,000 100,000


Resistivity of NaCl Solutions

Chart Gen-7

10

1

5

0.5

0.1

0.05

0.01

10 20 30 40 50 60 70 100 12080 90 140 160 180 200o

Temperature ( C)

Resi

stiv

ity o

f S

olu

tio

n

( -

m)

0.02

0.03

0.04

0.2

0.3

0.4

2

3

4

50 100 200 300 400150

oTemperature ( F )

200,000

100,000

50,000

20,000

5,000

10,000

2,000

1,000

500

200

NaC

l C

on

cen

tratio

n (p

pm

)


Maximum Tool Length in Deviated Wells

Chart Gen-8

200

100

0

Rigid Tool Length (m)

Rigid Tool Length (ft)

Ben

d R

ad

ius

(m

)

2 3 4 5 6 7 8 9 10 11 12

10 20 30 40

9

10

11

12131415

20

30

4050

100200

An

gu

lar

Bu

ildu

p R

ate

(/3

0 m

o

r °/

10

0 f

t)°

3 in.(76 mm)

4 in.(102 mm)

5 in.(127 mm)

7 in.( )178 mm

8 in.(203 mm)

Well Diameter

200

100

0

Rigid Tool Length (m)

Rigid Tool Length (ft)

Ben

d R

ad

ius

(m

)

2 3 4 5 6 7 8 9 10 11 12

10 20 30 40

9

10

11

12131415

20

30

4050

100200

An

gu

lar

Bu

ildu

p R

ate

(/3

0 m

o

r /1

00

ft)

°°

5 in.(127 mm)

6 in.(152 mm)

7 in.(178 mm)

8 in.(203 mm)

9 in.(229 mm)

10 in.(254 mm)

Well Diameter

For a given tool diameter t, the maximum rigid tool length L that will traverse a well of diameter d and bend radius R is given by: 12 2 /2L = 2{(R+d) – (R+t) }

Angular build rate (° / 30 m) = 1,718/R R in meters)

1™ /Compact 2 - in. (4 57-mm) Tools

3/Conventional 3 - in. (4 95-mm) Tools

6 in.(152 mm)


Density and Pe Values of Saltwater Solutions

Chart Gen-9

Salinity (1,000 ppm NaCl)

0 50 100 150 200 2501.00

1.05

1.10

1.15

1.20

o3

3B

ulk

Den

sity

at

20

C (

gm

/cm

or

Mg

/m)

0 50 100 150 200 250

Salinity (1,000 ppm NaCl)

Ph

oto

ele

ctr

ic C

ross

Sectio

n

(barn

s/e

lectr

on

)

0.25

0.50

0.75

1.00

1.25

1.5

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8 3V

olu

metr

ic C

ross

Sectio

n, U

(b

arn

s/cm

)f

oApplicability: NaCl solutions at 68 F (20 C).o


Capture Cross Sections for Water and Hydrocarbons

Chart Gen-10

20

40

60

80

100

120

w(c

u)

0 25 50 75 100 125 150 175 200 225 250

Water Salinity (NaCl kppm)

o68 F (

o20 C) and ambien t pressure

o302 F ( 10 kpsi (

o150 C) and 103 MPa)

g(c

u)

0 10 20 30 40 50 60Pressure (MPa)

0

4

8

12

16

Methane

0 2,000 4,000 6,000 8,000Pressure (psi)

o68 F (

o20 C)

o104 F ( o40 C)

o140 F ( o60 C)

o176 F ( o80 C)

o212 F ( o100 C)

o o302 F (150 C)

h(c

u)

2 10 100 1,0003 3Solution Gas/Oil Ratio (m /m )

3Solution Gas/Oil Ratio (ft /bbl)100 1,000 5,00020

16

17

18

19

20

21

22

23

R Determination From Static SPwe

Chart Sp-2

English

at


R Determination From Static SPwe

Chart Sp-2(m)

Metric



SP Bed Thickness Correction

Chart Sp-3b


R vs. R w we

Chart Sp-3

English

at


R vs. R w we

Chart Sp-3(m)

Metric

™Compact Spectral Gamma Ray Borehole Correction


Chart Gam-1

GR

/GR

(co

rr)

(lo

g)

5.0

4.0

3.0

2.0

1.0

0.9

0.8

0.7

0.6

0.52 4 6 8 10 12 14 16 18

Borehole Diameter (in.)

1.01.21.41.61.82.0

1.2

1.4

1.6

1.8

2.0

1.0

Air holes

f 3( gm /cm )

f

100 150 200 250 300 350 400 450

Borehole Diameter (mm)

Use this chart to correct the gamma ray response from MSG series tools for the effects of borehole size and mud weight.

Standard conditions are for eccentered tools in 203-mm) diameter wells with KCl-free 3mud of density 1.2gm/cm . Corrections for non-standard conditions are approximated by:

8-in. (

where d = (caliper in inches – 3.74)

f 3= mud density in g/cm

GR /GR(corr) (log)d0.06978e= 0.7 for centered tools

GR /GR(corr) (log) f0.06753 de= + 0.7 for eccentered tools

f

Applicability: Compact spectral gamma (MSG) tools. KCl-free muds.

Centered

Eccentered

™Compact Spectral Gamma Ray KCI Mud Correction


Applicability: Compact spectral gamma (MSG) tools, eccentered.

Chart Gam-2a

Use this chart to correct spectral gamma ray logs for the effects of KCl drilling muds.

KCl increases the measured total gamma ray and potassium concentration curves. The corrections are given by:

-0.207dGr = GR – 0.382K (1 – e )corr log

-0.25dand K% = K% – 0.027K(1 – e )corr log

where K is the KCl concentration in kppm, and d = (caliper in inches – 5.2)

0 20 40 60 80 100 120 140 160 180 200

0

–10

–20

–30

–40

–50

–60

KCl Concentration (kppm)

Tota

l G

am

ma R

ay C

orr

ectio

n (

AP

I u

nits)

0 20 40 60 80 100 120 140 160 180 200Kcl Concentration (kppm)

0

–1

–2

–3

–4

–5

Po

tass

ium

Co

rrectio

n (

%)

6 in. (150 mm)

8 in. (200 mm)

10 in. (250 mm)

6 in. (150 mm)

8 in. (200 mm)

10 in. (250 mm)

12 in. (300 mm)

12 in. (300 mm)

14 in. (350 mm)

14 in. (350 mm)

18 in. (460 mm)

18 in. (460 mm)

™Compact Gamma Ray Borehole Correction


Applicability: Compact series (MCG and MGS) tools. KCl-free muds.

Chart Gam-3

GR

/GR

(co

rr)

(lo

g)

5.0

4.0

3.0

2.0

1.0

0.9

0.8

0.7

0.6

0.52 4 6 8 10 12 14


1.0

2.0f

100 150 200 250 300 350


Use this chart to correct gamma ray logs from Compact series tools for the effects of borehole size and mud weight.

The standard condition is an eccentered tool in an 8-in. (203-mm) diameter well with KCl-free 3mud of density 1.2gm/cm . Corrections for non-standard conditions are approximated by:

where d = caliper in inches

f 3= mud density in g/cm

for centered tools

for eccentered tools

GR /GR(corr) (log) exp 0.35= 0.75 fd – 2.25

5.75( )

GR /GR(corr) (log) f= 1.75 – exp -0.24 d – 2.255.75( )

1.2

1.4

1.6

1.8

2.0

1.0

f 3(gm /cm )

Air holes

Centered

Eccentered

™Compact Array Induction Borehole Correction—Shallow


Applicability: Compact series (MAI) tools.

Chart Ind-10

2 4 6 8 10 12–0.01

0.0

0.01

0.02

0.03

0.04

Bo

reh

ole

Geo

metr

ic F

acto

r



50 100 150 200 250 300

Standoff

0.0 in. (0 mm)

0.5 in. (13 mm)

1.0 in. (25 mm)

1.5 in. (38 mm)

2.0 in. (51 mm)

Field logs are corrected for bit size, nominal standoff, and borehole fluid salinity.

Corrections are applied to each sub-array. The chart shows the composite correction after construction of the shallow output curve.

If borehole conditions depart significantly from nominal, new borehole corrections may be computed and applied to the processed logs after first removing the field corrections.

Borehole corrected conductivities are given by:

where is the apparent conductivity, the borehole fluid conductivity, and the borehole geometric factor.

app mgb

corrapp mgb

gb=

1–

–

™Compact Array Induction Borehole Correction—Medium



Chart Ind-11

2 4 6 8 10 12–0.002

0.0

0.002

0.004

0.006

0.008

Bo

reh

ole

Geo

metr

ic F

acto

r



50 100 150 200 250 300

Standoff

0.0 in. (0 mm)

0.5 in. (13 mm)

1.0 in. (25 mm)

1.5 in. (38 mm)

2.0 in. (51 mm)


Corrections are applied to each sub-array. The chart shows the composite correction after construction of the medium output curve.




app mgb

corrapp mgb

gb=

1–

–

™Compact Array Induction Borehole Correction—Deep

22 © 200\7 Weatherford. All rights reserved.


Chart Ind-12

2 4 6 8 10 12–0.001

0.0

0.001

0.002

0.003

0.004

Bo

reh

ole

Geo

metr

ic F

acto

r



50 100 150 200 250 300

Standoff 0.0 in. (0 mm)

0.5 in. (13 mm)

1.5 in. (38 mm)

2.0 in. (51 mm)


Corrections are applied to each sub-array. The chart shows the composite correction after construction of the deep output curve.




app mgb

corrapp mgb

gb=

1–

–

™Compact Array Induction Tornado Chart


Thick beds. Use borehole corrected data.


1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6

1

2

3

4

5

6

40

30

20

10

8

40 in.(1.0 m)

30 in.(0.76 m) 50 in.

(1.27 m) 60 in.(1.52 m)

70 in.(1.78 m)

80 in.(2.03 m)

100 in.(2.54 m)

120 in.(3.05 m)

25 in.(0.64 m)

20 in.(0.51 m)

15 in.(0.38 m)

Di

2

3

25

30

50

20

15

10

7

5

RxoRt

0.6

0.5

0.95 0.9 0.80.7

RtRILD

R / RILM ILD

R/R

SF

EIL

D

Chart Ind-5

R = 10 mxo





Chart Ind-6

1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6

1

2

3

4

5

6

40

30

20

10

8

40 in.(1.0 m)

30 in.(0.76 m)

50 in.(1.27 m) 60 in.

(1.52 m) 70 in.(1.78 m)

80 in.(2.03 m)

100 in.(2.54 m)

120 in.(3.05 m)

25 in.(0.64 m)

20 in.(0.51 m)

15 in.(0.38 m)

Di

2

3

30

50

20

15

10

7

5

RxoRt

0.6

0.5

0.950.9 0.8

0.7

RtRILD

R / RILM ILD

R/R

SF

EIL

D

R = 20 mxo

90 in.(2.29 m)

140 in.(3.56 m)





Chart Ind-7

1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6

1

2

3

4

5

6

40

30

20

10

8

80 in.(2.03 m)

100 in.(2.54 m)

25 in.(0.64 m)

20 in.(0.51 m)

Di

2

3

30

50

20

15

10

7

5

RxoRt

0.60.5

0.4

0.950.9 0.8

0.7

RtRILD

R / RILM ILD

R/R

SF

EIL

D

R = 100 mxo

90 in.(2.29 m)

(3.05 m)120 in.

150 in.(3.81 m)

200 in.(5.08 m)

70 in.(1.78 m)

60 in.(1.52 m)

50 in.(1.27 m)

40 in.(1.0 m)30 in.

(0.76 m)

15 in.(0.38 m)





Chart Ind-8

R < Rxo t

R / RILM ILD

R/R

SF

EIL

D

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 1.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0.9

0.8

0.7

0.6

0.5

25 in.(0.64 m)

30 in.(0.76 m)

40 in.(1.0 m)

60 in.(1.52 m)

70 in.(1.78 m)

80 in.(2.03 m)

100 in.(2.54 m)

120 in.(3.05 m)90 in.

(2.29 m)200 in.

(5.08 m)

150 in.(3.81 m)

50 in.(1.27 m)

0.02

0.05

0.10

0.15

0.20

0.400.80

RxoRt

10.0

5.0

3.0

2.0

1.2

RtRILD

Di

™Compact Focused Electric Borehole Correction


Applicability: Compact series (MFE) tools.

Chart SFE-2

2 3Corrections are approximated by: R / R = a + a x + a x + a x +.....FEFR FEFR 0 1 2 3(Corr)

where x = ln(R /R ). Coefficients for 4-, 6-, 8-, 10- and 12-in. wells are (left to right):FEFR m

1.0000000 0.3515411–0.1259589 0.0209587–0.0018341 0.0000652

1.0000000 0.5245657–0.2158732 0.0404045–0.0037254 0.0001324

1.0000000 0.6591658–0.2848466 0.0570030–0.0056788 0.0002223

1.0000000 0.7950933–0.4006034 0.1119412–0.0172275 0.0010960

1.0000000 0.9368961

0.4659671 0.1453734–0.0286625 0.0026412

–

a0a1a2a3a4a5

Cen

tere

d

10.1 10 100 10,0001,000

R / RFEFR m

R /

RF

EF

RF

EF

R(C

orr

)

Centered

1.6

1.4

1.2

1.0

0.8

0.6

1.8

2.0

2.2

2.4

0.4

6 in.

8 in.

10 in.

4 in.150 mm200 mm

250 mm

300 mm

12 in.

100 mm

Borehole Diameter

The corrected shallow resistivity curve FEFE has been corrected for bit size and Rm. To apply

an alternative correction, enter the chart using the raw shallow resistivity curve FEFR.

™Compact Deep Laterolog Borehole Correction


Standard condition is 5-in. (13-mm) standoff in an 8-in. (200-mm) well, Ra/Rm = 20

Applicability: Compact series (MDL) tools, wireline operating mode A (voltage reference at 94 ft/29 m).

Chart Lat-4

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLD m

R /

RLLD

LLD

(Co

rr)

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLD m

R /

RLLD

LLD

(Co

rr)

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLD m

R /

RLLD

LLD

(Co

rr)

64

810

16

150100

200250 300

Borehole Diameterin. mm

1214

350 400

Centered

1.5-in. (38-mm) Standoff


6

64

8

8

10

10

16

16

150

150100

200

200

250

250

300

300

Borehole Diameter

Borehole Diameter

in.

in.

mm

mm

12

12

14

14

350

350

400

400

™Compact Shallow Laterolog Borehole Correction


Standard condition is 5-in. (13-mm) standoff in an 8-in. (200-mm) well, Ra/Rm = 20


Chart Lat-5

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLS m

R /

RLLS

LLS

(Co

rr)

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLS m

R /

RLLS

LLS

(Co

rr)

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLS m

R /

RLLS

LLS

(Co

rr)

64

810

16

150

100

200250

300

Borehole Diameter

in. mm

1214 350

400

Centered



16

16

14

14

12

12

10

10

86 150

150

200

200

250

250

300

300

350

350

400

400

Borehole Diameter

Borehole Diameter

mm

mm

in.

in.

864

100

™Compact Laterolog Tornado Chart


Thick beds, 8-in. (203-mm) hole, step invasion profile, Rxo/Rm = 50


Chart Lat-6

Use borehole corrected data.

1.0 2 3 4 5 10 20 30 40 500.4 0.6 0.80.2

0.3

0.4

0.5

0.6

0.8

1.0

2

3

4

5

6

8

10

20

30

40

50

60

80

100

R / RLLD LLS

R /

RLLD

xo

100

0.4

0.2

30 40 50 6080

120RtRxo

D (in.)i

RtRLLD

100

70

50

30

20

10

15

7

5

3

2

1.5

1.21.3 1.4

1.6 1.8

20

™Compact Deep Laterolog Borehole Correlation—Shuttle Deployed


Applicability: Compact series (MDL) tools, shuttle deployed.

Chart Lat-10

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLD m

R /

RLLD

LLD

(Co

rr)

Centered

48

16

100200

300


12 400

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLD m

R /

RLLD

LLD

(Co

rr)


16300


12 400

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLD m

R /

RLLD

LLD

(Co

rr)


4 816

100 200 300


12 400

6 8150 200

™Compact Shallow Laterolog Borehole Correction—Shuttle Deployed



Chart Lat-11

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLS m

R /

RLLS

LLS

(Co

rr)

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLS m

R /

RLLS

LLS

(Co

rr)

1 10 100 10,0001,000

1.6

1.4

1.2

1.0

0.8

0.6

R / RLLS m

R /

RLLS

LLS

(Co

rr)

100

Borehole Diameter

in. mm

64

10

16

1214

150

200

250

300350400

Centered



Borehole Diameter

Borehole Diameter

150200250300

350

400

mm

mm

1614121086

in.

in.

16141210864 150

200250300

350

400

100

™Compact Laterolog Tornado Chart—Shuttle Deployed


Thick beds, 8-in. (203-mm) hole, step invasion profile, Rxo/Rm = 50

Use borehole corrected data.


Chart Lat-12

1.0 2 3 4 5 10 20 30 40 500.4 0.6 0.80.2

0.3

0.4

0.5

0.6

0.8

1.0

2

3

4

5

6

8

10

20

30

40

50

60

80

100

R / RLLD LLS

R /

RLLD

xo

100

0.4

0.2

3040 50

120

D (in.)i

RtRLLD

100

70

50

30

20

10

15

7

5

3

2

1.1

1.2 1.3 1.4 1.61.5

1.8

20

6080

RtRxo

™Compact MicroLaterolog Mudcake Correction


Applicability: MMR series with 4-, 6-, and 8-in. (102-, 152-, and 203-mm) profile pads in matching hole sizes.

Chart Micro-3

R/R

MLL

(co

rr)

MLL

3.0

2.0

1.00.90.80.7

1 2 3 4 5 10 20 30 40 50 100

R / RMLL mc

0.8 in.20 mm( )

0.7 in.17.5 mm( )

1.0 in.25 mm( )

0.4 in.10 mm( )

0.3 in. 7.5 mm ( )

0.2 in. 5 mm ( )

0.5 in.12.5 mm( )

0.6 in.15 mm( )

0 in. 0 mm ( )

h = mc

™Compact Neutron Porosity Charts—Explanatory Note


Applicability: Compact series (MDN) tools.

Neutron porosity logs are calibrated in limestone units (curve mnemonic NPRL) and

may be displayed also in apparent sandstone units (mnemonic NPRS) or apparent

dolomite units (NPRD). Chart Npor-5 shows the magnitude of the transforms.

Use Charts Npor-6a to Npor-8 to determine the magnitude of open-hole environmental

corrections. Chart Npor-9a details the cased-hole corrections. Compact tool

are corrected automatically for any or all environmental perturbations. Refer to the

Neutron Constants table part of the log tail to determine whether a particular correction

has been applied (indicated by departure from standard conditions).

Standard Conditions

Limestone matrix: CaCO with 7.10 cu capture cross section3

Borehole size: 8.0 in. (203 mm)

Borehole fluid: Fresh water

Tool standoff: 0.0 in. (0 .0 mm)3Mud weight: 8.345 lb/US gal (1,000 k g/m )

o oBorehole temperature: 68 F (20 C)Formation pressure: 0 kpsi (0 MPa)

Formation fluid: Fresh water with 22.2 cu capture cross section

Standard sandstone matrix is SiO with 4.26 cu capture cross section. 2

Standard dolomite matrix is CaMg(CO ) with 4.70 cu capture cross section.3

If a correction was not applied during acquisition, or if alternative parameter values are

established, the charts allow a new net correction to be computed. The uncorrected

apparent limestone porosity curve NPOR is provided for this purpose.

Corrections are applied in a specific order. For open-hole corrections, enter Chart Npor-6a

with the value of NPOR, and draw a line vertically through the first four nomograms from

the uppermost porosity entry point through to the second porosity scale. A correction is

computed from each nomogram by following the correction curves from the actual

condition to the standard condition. A multiplier is applied to the corrections for borehole

fluid salinity and standoff if the hole size is not 8 in. The total correction is the arithmetic

sum of the individual corrections. Next, transform the resulting porosity into the

appropriate matrix units, using Chart Npor-5, before applying and formation fluid

salinity corrections in Charts Npor-7 and Npor-8. Finally, return to Chart Npor-6a to

perform formation temperature and pressure corrections.

The procedure for applying cased-hole corrections is detailed within Npor-9a.

field logs

Npor Explanatory Note

ma

™Compact Neutron Porosity Matrix Transforms


ma values: Silica 4.26 cu Limestone 7.10 cu Dolomite 4.70 cu

Applicability: Compact series (MDN) tools. value: 22.2 cu.fl

–3 0 5 10 15 20 25 30 35 40

Apparent Limestone Porosity (pu)

Tru

e P

oro

sity

(p

u)

40

35

30

25

20

15

10

5

0

Silica

Lim

esto

ne

Dolom

ite

Use this chart to transform Compact series neutron porosity logs recorded in apparent limestone units into true sandstone and dolomite porosities.

Enter the apparent limestone porosity, and move vertically to the appropriate matrix line. Read the true porosity from the vertical axis.

The transforms are described by the following equations:

sand = 0.000075 – 0.012

– 0.0022

lim3

lim3

lim

lim

+1.43

+0.982

+1.76

–0.88

lim2

lim2

dol = 0.000025

Chart Npor-5

maWhen formation values depart significantly from standard conditions, use Chart Npor-7 to make additional corrections.

™Compact Neutron Porosity Environmental Corrections


Applicability: Open-hole logs from Compact series (MDN) tools.

Chart Npor-6a

0 10 20 30 40 50

Apparent Limestone Porosity Units

0 10 20 30 40 50

Pressure(kpsi)

0

5

15

10

20

25

50

100

150

200

250

300

Temperature( F)o

Mud Weight(lb/US gal)

naturalbarite 8

10

12

14

16

18

0

50

100

150

200

250

Bo

reh

ole

Salin

ity

(kp

pm

)

164 8 12

0

1

2

3

Mu

ltip

lier

Hole Size (in.)

0 10 20 30 40 50

Standard condition

0

0.5

1.0

1.5

2.0

2.5

Sta

nd

off (

in.)

4 8 12 16

0.5

0

1.0

1.5

2.0

Mu

ltip

lier

Hole Size (in.)

Temperature(°F)

Hole Size (in.)

2.5 1.5

0.5

Standoff

Corrected Porosity Units

4

0

8

100

6

50

12

200

10

150

14

250

16

Borehole Size

(in.)

Bo

reh

ole

Salin

ity

(kp

pm

)

4 8 12 16

0

1

2

3

Mu

ltip

lier

50

150

100

250

200

300

™Compact Neutron Porosity Matrix Cross Section Corrections



Chart Npor-7

0 10 20 30 40 50

Environmentally Corrected Neutron Porosity (pu)

0

10

20

30

40

50

60

70

0 10 20 30 40 500

10

20

30

40

50

60

70

0

10

20

30

40

50

60

70

SandstoneFormations

ma (cu)

LimestoneFormations

ma (cu)

DolomiteFormations

ma (cu)

Standard condition

Use the appropriate nomogram to deduce corrections for variations in matrix sigma values. Sigma corrections associated with variations in formation fluid salinity are specified in Chart Npor-8. Matrix sigma corrections are given by:

2 .= (–2.51a + 11.34a - 8.83) (0.08 exp(–0.04 ) + 0.05)2 .= (–1.37a + 8.78a - 7.41) (0.08 exp(–0.045 ) + 0.25)2 .= (–7.09a + 16.98a - 9.89) (0.11 exp(–0.06 ) + 0.20)

where: = borehole corrected neutron porosity in appropriate matrix units

and a = mama(std) /

ma(std) = 4.26, 7.10, and 4.70 cu, respectively, for standard sand, lime, and dolomite.and

sand

lime

dolomite

3 –8 2 –5. . ..= (–0.07 + 2.0 –3.0) kppm 10 + (0.031 – 0.4 +1.0) kppm 10–3. . – (1.4 +2.0) kppm 10

3 –8 2 –5. . ..= (–0.066 + 3.0 –1.0) kppm 10 + (0.024 – 0.6 +1.2) kppm 10–3. . – ( +1.0) kppm 10

3 –8 2 –5. . ..= (–0.02 + 0.4 –1.0) kppm 10 + (0.022 – 0.1 +1.0) kppm 10–3. . – (2.0 +2.0) kppm 10

™Compact Neutron Porosity Formation Salinity Corrections



Chart Npor-8

0 10 20 30 40 50

0 10 20 30 40 50

Environmentally Corrected Neutron Porosity (pu)

Standard condition

Use the appropriate nomogram to deduce corrections for variations in formation salinity. If the matrix cross section is known, a correction should first be made using Chart Npor-7. Salinity corrections are approximated by:

250

200

150

100

50

0

SandstoneFormations

Salinity (kppm)

250

200

150

100

50

0

LimestoneFormations

Salinity (kppm)

250

200

150

100

50

0

DolomiteFormations

Salinity (kppm)

where: = borehole corrected neutron porosity in appropriate matrix units

sand 2 2

lime 2 2

dolomite 2 2

™Compact Neutron Porosity Cased-Hole Corrections


Applicability: Cased-hole logs from Compact series (MDN) tools.

Chart Npor-9a

Standard condition

0 10 20 30 40 50

0 10 20 30 40 50

Apparent Limestone Porosity Units (pu)

14

16

12

10

8

6

4

0.5

0.6

0.4

0.3

0.2

0.1

0

2.5

3.0

2.0

1.5

1.0

0.5

0

Casing ID(in.)

Casing Thickness(in.)

Cement Thickness(in.)

In cased holes substitute this chart for the open-hole borehole size correction. Enter the chart with uncorrected porosity in apparent limestone units (NPOR or uncorrected NPRL), and draw a vertical line through each nomogram. Derive values from each nomogram by marking the intersection with the given casing ID, casing thickness and cement thickness values; then move parallel to the nearest curve to the standard condition. Sum the values to find the total correction. Apply any remaining environmental corrections at this point.

Example: casing ID = 5 in., casing thickness = 0.5 in., cement thickness = 1.25 in. For NPOR = 28 pu, corrected porosity = 28 + (3.9 – 7.5 – 6.6) = 17.8 pu.

Cement Thickness

Casing ID

3 2Casing Thickness 3 2= ( (0.59 t – 0.235 t – 0.75 t).0.00004 – 0.0135 + 1.0877 )

2 3 2.= (–0.0009 + 0.13 + 0.05) (0.087h – 0.33h – 1.5 h )h = cement thickness in in.

t = casing thickness in inches

.= f( ) f( c)

where

c = (caliper – 8.0) in.

3 2f( ) = 0.0000027 – 0.00137 + 0.1484 + 1.63 2f( c ) = –0.00017c + 0.0131c – 0.232c

™Compact Neutron Porosity Environmental Correction Equations


Porosity ( ) in pu. Range: as Chart Npor-6a.


o.= (0.0007 + 0.001) ( F – 68)

Borehole Size

General

To determine whether a particular environmental correction was applied during acquisition, refer to the correction parameter value recorded on the log tail; if it is equal to the standard condition value, then no correction was applied. Corrections are additive.

To compute corrections for borehole size, borehole fluid salinity, standoff, and mud weight based on alternative parameter values, use the relevant equations applied to the raw Apparent Limestone Porosity curve (mnemonic NPOR). Temperature and pressure corrections should be applied after matrix and formation fluid salinity corrections have been made.

where

c = (caliper – 8.0) in.23f( ) = –0.0000027 – 0.00137 + 0.1484 + 1.61

Borehole Fluid Salinity

.= k (0.05 + 1.0 ) MDNACL / 250

where

where

k = (caliper – 2.25)/5.75 in.

Standoff 3 2. . = f(standoff) f( ) (caliper /2,048+caliper /256+caliper/16)

Mud Weight

Natural Muds

.= (0.0143 + 0.1786) (w – 8.345)

.= (0.0057 + 0.0714) (w – 8.345)

Barite Muds

wherew = mud weight in lb/US gal

Borehole Temperature

Pressure

.= (0.02 – 0.004 ) kpsi

MDNACL = NaCl equivalent salinity in kppm

k = (caliper – 2.25)/ 5.75 in.

2f(standoff) = 0.8s – 4.4 s

s = standoff / k in.

f( ) =– 0.0005 +0.034 +0.62

Lithology-Porosity from Density-Neutron Crossplot


Applicability: MPD and MDN tools, environmentally corrected.

3 3Formation fluid density = 1.0 g/cm (Mg/m ).

Chart LPC-1

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

33

Bu

lk D

en

sity

(g

/cm

o

r M

g/m

)

0 5 10 15 20 25 30 35 40


Dolom

ite

Porosit

y

0

5

10

15

40

0

0

5

10

15

15

20

25

30

30

35

35

40

45

40

35

30

25

20

15

10

5

0

–5

–10

–15

3D

en

sity

Po

rosi

ty (

pu

) (

=

2.7

1 g

/cm

)m

a

Sandst

one

Limesto

ne

35

30

20

20

25

10

5

25

Lithology-Porosity from Density-Neutron Crossplot


Applicability: MPD and MDN tools, environmentally corrected.

3 3Formation fluid density = 1.19 g/cm (Mg/m ).

Chart LPC-2

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

33

Bu

lk D

en

sity

(g

/cm

or

Mg

/m)

0 5 10 15 20 25 30 35 40


Dolomite

Porosit

y

0

5

10

15

20

25

30

35

40

0

0

5

5

10

10

15

15

20

20

25

25

30

30

35

35

40

45

40

35

30

25

20

15

10

5

0

–5

–10

–15

3D

en

sity

Po

rosi

ty (

pu

) (

=

2.7

1 g

/cm

)m

a

Sandstone

Limesto

ne

Lithology-Porosity from Sonic-Neutron Crossplot


Applicability: MDN tools, environmentally corrected.

Formation fluid slowness = 189 ms/f t (620 ms/m).

Chart LPC-5

0 5 10 15 20 25 30 35 40


Lim

esto

neDol

omite

Poro

sity

00

5

10

15

15

20

20

25

30

30

40

40

50

60

70

80

90

100

110

So

nic

Tra

nsi

t T

ime (

ms

/ft )

35

140

160

180

200

220

240

260

280

300

360

340

320

So

nic

Tra

nsi

t T

ime (

ms/

m)

0

5

10

15

20

25

35

40

10

30

San

dsto

ne

Time average

Raiga-Clemenceau

30

15

35

30

35

25

20

15

10

5

35

30

25

20

15

10

20

25

10

5

5

25

San

dst

on

e D

en

sity

Po

rosi

ty (

pu

)

00

5

5

10

10

15

15

20

20

25

25

30

30

35

35

40

40

45

45

50

55

Sandstone Neutron Porosity (pu)

40

45

30

35

30

35

20

55

1010

1515

20

2525

40

45

Porosity

20%

20%

0%

80%

80%

60%

40%

40%

100%

100%

Sxo

Sxo

60%

7,000 psi and 248 F (120°C)°

2,000 psi and 122 F (50°C)°

Use this chart to compute porosity and gas saturation in gas-bearing formations. It assumes a mixture of methane, fresh water, and silica sand.

Enter with borehole corrected neutron porosity in apparent sandstone units and density porosity computed using an apparent filtrate density of 1.0 g/cc.

Chart Gas-1

Porosity and Saturation from Density-Neutron Porosity Plot

Applicability: MPD and MDN tools, borehole corrected.

Formation fluid salinity = 0 ppm, gas-bearing formations


Lithology-Porosity from Density-Pe Crossplot

Applicability: MPD series tools.

3 3Fresh-water-filled formations, fluid density = 1.0 g/cm (Mg/m ).

Chart Lpor-11

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

33

Bu

lk D

en

sity

(g

/cm

o

r M

g/m

)

0 6.01.0 2.0 3.0 4.0 5.0

Photoelectric Cross Section (barns/electron)

0

0

0

0

10

10

10

20

20

20

30

30

30

40

40

40

Lim

est

on

e

Do

lom

ite

San

dst

on

e

Salt


Lithology-Porosity from Density-Pe Crossplot

Applicability: MPD series tools.

3 3Salt-water-filled formations, fluid density = 1.19 g/cm (Mg/m )

Chart Lpor-12

1.9

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

33

Bu

lk D

en

sity

(g

/cm

o

r M

g/m

)

0 6.01.0 2.0 3.0 4.0 5.0

Photoelectric Cross Section (barns/electron)

0

0

0

0

10

10

10

20

20

20

30

30

30

40

40

40

Lim

est

on

e

Do

lom

ite

San

dst

on

e

Salt


Matrix Identification from the PhotoDensity

Chart Lith-2

33

, A

pp

are

nt

Matr

ix G

rain

Den

sity

(g

/cm

or

Mg

/m)

maa

2.5

2.6

2.7

2.8

2.9

3.0

3.12 4 6 8 10 12 14 16

3U , Apparent Matrix Volumetric Cross Section (barns/cm )maa

2040

6080

% Calcite

20

40

60

80 % Dolomite

20

40

60

80

% Q

uartz

Quartz

Dolomite

Calcite

Salt

Barite

Shale

fmaa

log t–

t1–= tPe e –

t–1UfUmaa =and

ftwhere is total porosity, is formation fluid density, U is formation fluid volumetric cross fsection, and is the formation electron density given by:e

e log= log 3( > 2.71 g/cm )

e log= + 0.065 log 3( < 1.687 g/cm )e log= ( + 0.187797)/1.07009 log 3(1.687 < < 2.71 g/cm )

Water (fresh) 1.00 0.40Water (200 kppm NaCl) 1.11 1.36Oil 1.22 – 0.19 0.14Gas 1.33 – 0.19 0.12

f Uff UfTypical values for the fluid parameters and are:

This chart is used to identify matrix components in mixed-lithology formations. Input data are density, Pe, and total porosity computed, for example, from a density-neutron crossplot.

The apparent matrix grain density and the apparent matrix volumetric cross section U are computed as:maa

maa

oiloil

gas gas


ZMName

MDN

p.u.

tc

s/ft

ts

s/ft

log log*3(g/cm ) 3(g/cm )Chemical Formula

Pe

(barn/electr.)

U

3(barn/cm )

Quartz

Calcite

Dolomite

SiO2

CaCO3

CaMg(CO )3 2

0.499

0.500

0.498

2.65 2.65

2.71 2.71

2.87 2.86

4.8

13.8

9.0

–1.2

0.0

0.9

56

46

42

Anhydrite

Barite

Gypsum

Halite

Sylvite

CaSO4

BaSO4

CaSO .2H O4 2

NaCl

KCl

0.499

0.446

0.511

0.479

0.483

2.98 2.96

4.08 3.99

2.35 2.35

2.03 2.03

1.86 1.86

14.9

1,060.6

9.5

9.6

16.3

–1.5

2.0 –

58.0

2.0 –

2.0 –

51

69

52

67

74

Siderite

Hematite

Magnetite

Goethite

Pyrite

FeCO3

Fe O2 3

Fe O3 4

FeO(OH)

FeS2

0.483

0.476

0.475

0.484

0.483

3.91 3.83

5.16 5.00

5.07 4.92

4.23 4.13

4.99 4.84

56.0

107.3

108.9

78.1

81.8

12.0

11.0

9.0

60.0+

2.0 –

44

44

72

39

Orthoclase

Anorthoclase

Albite

Anorthite

KAlSi O3 8

(Na,K)AlSi O3 8

NaAlSi O3 8

CaAl Si O2 2 8

0.496

0.496

0.496

0.496

2.54 2.54

2.59 2.59

2.58 2.58

2.74 2.74

2.86 7.2

7.4

4.4

8.6

2.0 –

1.0 –

1.0 –

–1.0

69

47

45

Kaolinite

Montmorillonite

Illite

Al Si O (OH)4 4 10 8

Al (Si O ) .nH O4 4 10 2 2

K Al (Si Al )y 4 8-y y

O (OH)20 4

0.504

0.502

0.499

2.64 2.64

2.63 2.63

2.76 2.76

3.9

4.3

9.5

40.0

47.0

35.0

212

Muscovite

Biotite K(Mg,Fe) AlSi O3 3 10

(OH)2

0.497

0.493

2.83 2.82

3.19 3.16

6.8

19.2

20.0

21.0

47

49

88

89

77

98

133

120

140

85

74

155

62

98

328

82

79

Bituminous Coal

Anthracite

Lignite

CH N On x y

CH N On x y

CH N On x y

0.527

0.513

0.525

1.29 1.31

1.55 1.54

1.28 1.25

1.81

5.08

3.14

5.05

265.56

3.99

4.65

8.51

14.62

21.48

22.14

18.90

16.89

2.86

1.68

3.13

1.49

1.63

3.45

2.40

6.27

0.17

0.16

0.20

0.2

0.3

0.3

60.0+

40.0

54.0

120

105

160

r r DD

mm

FS

* Z/A correction set to Advanced

Log Responses in Common Rocks and Minerals

Applicability: Compact series tools, standard conditions.

Chart Lith-3c49© 2007 Weatherford. All rights reserved.

Compact Curve Mnemonics™

Curve Mnemonic


AIAT AIBT AIIT AIR1 AIR2 AIR3 AIR4 AIST AITC AIX1 AIX2 AIX3 AIX4

APOR CIL1 CIL2 CIL3 CIL4 CILD CILM CILS IHTD IHTF RILD RILM SYM1 SYM2 SYM3 SYM4 VEC0 VEC1 VEC2 VEC3 VEC4 VEC5 ACCF BAZI BAZT BNBT BNGR BNIT BNST BNXA BNXM BNYA BNYM BNZA BNZM BTLF BTLT BZAC BZAT GBNE GRBG HSBA MAGF

MAI Array Temperature Borehole Temperature Raw MAI Internal Temperature

Induction Receiver 1 Induction Receiver 2 Induction Receiver 3 Induction Receiver 4

MAI Status MAI Transmitter Current

Induction VX1 Induction VX2 Induction VX3 Induction VX4

Apparent Porosity Conductivity Receiver 1 Conductivity Receiver 2 Conductivity Receiver 3 Conductivity Receiver 4

Deep Conductivity Medium Conductivity Shallow Conductivity

Differential Temperature Borehole Temperature

Deep Induction Medium Induction

Symmetrised Receiver 1 Symmetrised Receiver 2 Symmetrised Receiver 3 Symmetrised Receiver 4

Shallow Induction Near Induction

Near Medium Induction Far Medium Induction

Far Induction Deepest Induction

Acceleration Magnitude Borehole Azimuth (Mag.) Borehole Azimuth (True)

MBN Bulkhead Temperature Gamma Ray Raw

MBN Internal Temperature MBN Status

X Accelerometer X Magnetometer Y Accelerometer Y Magnetometer Z Accelerometer Z Magnetometer

Filtered Borehole Tilt Borehole Tilt

Z Accelerometer Counts Z Accelerometer Time

Borehole Corrected Gamma Gamma Ray

Relative Bearing (HS) Field Magnitude

Compact Array Induction

Compact Borehole NavigationMBN

MAI

Tool DescriptionCurve Description Tool

™Compact Curve Mnemonics

Mnemonics Mnemonics Description Tool Tool Description


Curve Mnemonic

NDAA NDPT NSPD RAZI SAAZ SRBA CCLG CGCL CGDT CGFR CGGR CGIT CGSP CGST CGVN CGVP CGVT CGXT GGCE GRGC SPCG DNFD DNFT DNIT

DNND DNNT DNST NPOR NPRD NPRL NPRS NRAT FEFC FEFE FEFR FEFV FEIT

FEQC FEQR FEQS FERI FERV FESI FEST FEXI FEXV BHUN BONE BTEN BTHO BTTH FCCP FCIT

FCMC FCMSFCMT

Depth Difference Speed Corrected Depth PROCESSED Speed Azimuth of Reference

Apparent Azimuth Relative Bearing

Casing Collar Locator CCL Raw

Downhole Tension Fluid Resistance Gamma Ray Raw

MCG Internal Temperature SP Raw

MCG Status Line Voltage (–ve) Line Voltage (+ve)

Line Voltage MCG External Temperature Borehole Corrected Gamma

Gamma Ray Spontaneous Potential

Far Neutron Raw Far Neutron Dead Time

MDN Internal Temperature Near Neutron Raw

Near Neutron Dead Time MDN Status

Base Neutron Porosity Dolomite Neutron Por.

Limestone Neutron Por. Sandstone Neutron Por. Neutron Ratio (Near/Far) Shallow FE (Phase Corr.)

Shallow FE Shallow FE (No Corr.)

MFE Fish Voltage MFE Internal Temperature Quadrature FE (Phase C.) Quadrature FE (No Corr.)

Quadrature FE MFE Current MFE Voltage

MFE Sense DC Current MFE Status

MFE Quadrature Current MFE Quadrature Voltage

Paine P. (Abs) 100s Paine P. (Abs) 1s

Paine P. (Abs) 10s Paine P. (Abs) 1000s

Paine P. (Abs) 10000s MFC Caliper

MFC Internal Temperature MFC Motor Current MFC Motor Speed

MFC Motor Temperature

Compact Comms Gamma

Compact Borehole NavigationMBN

MCG


Compact Dual Neutron MDN

Compact Focused ElectricMFE

Compact Formation TesterMFT



Curve Mnemonic

FCST FPEX FPGP FPGT FPIT

FPMC FPMS FPMT FPNG FPPP FPPS FPPV FPQC FPQH FPQT FPST PGAB PGPF PHUN PKEY PONE PSVL PTEN PTHO PTTH QDPF QFRC QHUN QONE QTEM QTEN QTHO QTTH TPRE GDIT GDLO GDST GDUP GCSL GGME GRGM GSCL GSFR GSGR GSIT GSSP GSST GSVN GSVP GSVT GSXT SPGS BHTD BHTF HTBTHTIT

MFC Section Status MFP Extended Status Paine Pressure Raw

Paine Gauge Temperature MFP Internal Temperature

MFP Motor Current MFP Motor Speed

MFP Motor Temperature Paine Voltage ( ve)

Piston Position Paine Voltage (+ve)

Paine Voltage Quartzdyne Pressure (C)

Quartzdyne Temp. (C) Quartzdyne Reference

MFP Section Status Paine Pressure (Abs)

Paine Pressure (Gauge) Paine P. (Gge) 100s

Piston Control Paine P. (Gge) 1s

Piston Swept Volume Paine P. (Gge) 10s

Paine P. (Gge) 1000s Paine P. (Gge) 10000s Quartzdyne Pressure Quartzdyne Fraction

Quartzdyne 100s Quartzdyne 1s

Quartzdyne Temperature Quartzdyne 10s

Quartzdyne 1000s Quartzdyne 10000s

Pretest Time MGD Internal Temperature

Lower Gas Detector MGD Status

Upper Gas Detector MCL C. Collar Locator

Borehole Corr. MGS Gamma MGS Gamma Ray

MGS CCL Raw MGS Fluid Resistance MGS Gamma Ray Raw

MGS Internal Temperature MGS SP Raw MGS Status

MGS Line Voltage (–ve) MGS Line Voltage (+ve)

MGS Line Voltage MGS External Temperature

MGS SP Differential Temperature Borehole Temperature

Borehole Temperature Raw MHT Internal Temperature

–


Compact Gas DetectorMGD

Compact Formation TesterMFT

Compact High-res TempMHT

Compact Gamma SondeMGS



Mnemonics Mnemonics Description Tool Tool DescriptionCurve Mnemonic

HTST AZII BT1L BT1U BT2L BT2U BT3L BT3U BT4L BT4U BT5L BT5U BT6L BT6U BT7L BT7U BT8L BT8U BTM1 BTM2 BTM3 BTM4 BTM5 BTM6 BTM7 BTM8 BTN1 BTN2 BTN3 BTN4 BTN5 BTN6 BTN7 BTN8 CORI DI26 DI48 DIPI IAAZ IACF IAP1 IAZI IAZT IEAT IEAX IEAY IEB1 IEB2 IEB3 IEB4 IEB5 IEB6 IEB7 IEB8 IEBT IEC2

MHT Status Dip Azimuth From Imager Imager Pad 1 Lower Row Imager Pad 1 Upper Row Imager Pad 2 Lower Row Imager Pad 2 Upper Row Imager Pad 3 Lower Row Imager Pad 3 Upper Row Imager Pad 4 Lower Row Imager Pad 4 Upper Row Imager Pad 5 Lower Row Imager Pad 5 Upper Row Imager Pad 6 Lower Row Imager Pad 6 Upper Row Imager Pad 7 Lower Row Imager Pad 7 Upper Row Imager Pad 8 Lower Row Imager Pad 8 Upper Row Imager Pad 1 Md. Current Imager Pad 2 Md. Current Imager Pad 3 Md. Current Imager Pad 4 Md. Current Imager Pad 5 Md. Current Imager Pad 6 Md. Current Imager Pad 7 Md. Current Imager Pad 8 Md. Current

Imager Pad 1 Imager Pad 2 Imager Pad 3 Imager Pad 4 Imager Pad 5 Imager Pad 6 Imager Pad 7 Imager Pad 8

Dip Cor. From Imager Imager Diameter 2 – 6 Imager Diameter 4 – 8 Dip Angle From Imager

Apparent Azimuth Acceleration Magnitude Azimuth of Reference

Borehole Azimuth (Mag.) Borehole Azimuth (True) MIE Acc. Temperature MIE Accelerometer X MIE Accelerometer Y

MIE Button 1 MIE Button 2 MIE Button 3 MIE Button 4 MIE Button 5 MIE Button 6 MIE Button 7 MIE Button 8

MIE Board Temperature MIE Caliper 2


Compact Imager ElectrodesMIE

Compact High-res TempMHT



Curve Mnemonic

IEC4 IEC6 IEC8 IECX IECY IECZ IEDA IEDC IEDD IEDI IEDZ IEMI IEMP IEMX IEMY IEMZ IEOF IEP1 IEP2 IEP3 IEP4 IEP5 IEP6 IEP7 IEP8 IEPA IEPT IES0 IES1 IETT IETX IETY IETZ IEVR IEXA IEYA IEZC IEZT IFTT IMAX IMAY IMGF IMGX IMGY IMGZ IMT1 IMT3 IMT5 IMT7 IMZA IRBR IRHS IRKT ITLT

NDCC NDPI

MIE Caliper 4 MIE Caliper 6 MIE Caliper 8 MIE Caliper X MIE Caliper Y

MIE Acc. Z Counts MIE Drive Volts (Arm)

MIE Data Counter MIE Drive Volts (Dref)

MIE Drive Current MIE Acc. Z Time

MIE Motor Current MIE Motor Position

MIE Magnetometer X MIE Magnetometer Y MIE Magnetometer Z

MIE A/D Offset MIE Pad 1 Data MIE Pad 2 Data MIE Pad 3 Data MIE Pad 4 Data MIE Pad 5 Data MIE Pad 6 Data MIE Pad 7 Data MIE Pad 8 Data

MIE Parity MIE Pad Temperature

MIE Status 0 MIE Status 1

MIE Accelerometer Temp. MIE Magnetometer X MIE Magnetometer Y MIE Magnetometer Z MIE Volt Reference

MIE Accelerometer X MIE Accelerometer Y MIE Acc. Z Counts MIE Acc. Z Time

Filtered Borehole Tilt MIE Accelerometer X MIE Accelerometer Y

Field Magnitude MIE Magnetometer X MIE Magnetometer Y MIE Magnetometer Z

Imager Trace 1 Imager Trace 3 Imager Trace 5 Imager Trace 7 Z Accelerometer Relative Bearing

Relative Bearing (HS) Breakout Angle

Borehole Tilt Depth Difference

Speed Corrected Depth






NSPI RAX1 RAX5 RAY3 RAY7 IMCB IMCC IMCF IMCK IMCP IMGR IMIT

IMMN IMS0 IMS1 IMS2 IMSD DA1F DDIF DDLB DDLL DDMR DDVF DGLL DGVF DLA1 DLDC DLDG DLDI DLDV DLGV DLIT DLSC DLSF DLSG DLSI DLSP DLST DLSV DLV1 DLVD DLVR DLVS DLZS DSGF DSIF DSLB DSLL DSMR DSVF DV1F M333 M33B M444 M44B M555

PROCESSED Speed Imager Pad 1 Radius Imager Pad 5 Radius Imager Pad 3 Radius Imager Pad 7 Radius

MIM Current Block MIM Current Chip

MIM Current File Number MIM Time/Date

MIM Current Page MMI Image

MIM Internal Temperature MMI Image Mean

MIM Status 0 MIM Status 1 MIM Status 2

MMI Image Standard Dev. Filtered A1D Voltage Filtered Deep Current

Corrected Deep Laterolog Deep Laterolog

Deep App. Mud Res. Filtered Deep Voltage Groningen Laterolog

Filt. Groningen Voltage A1D Electrode Voltage Deep Current Check Deep Guard Current

Deep Current Deep Voltage

Groningen Voltage MDL Internal Temperature

Shallow Current Check MDL Status 2

Shallow Guard Current Shallow Current SP Voltage Raw

MDL Status 1 Shallow Voltage

V1 Electrode Voltage Deep Voltage Check Voltage Reference

Shallow Voltage Check A/D Zero Voltage

Filt Shal Guard Current Filtered Shallow Current Corr. Shallow Laterolog

Shallow Laterolog Shallow App. Mud Res. Filtered Shallow Voltage

Filtered V1 Voltage Shallow Laterolog Cond. Corr. Shallow Lat. Cond. Deep Laterolog Cond.

Corr Deep Laterolog Cond Groningen Laterolog Con.


Compact Laterolog ElectrodeMLE


Compact Imager MemoryMIM



Curve Mnemonic

M66B SPDL M111 M222 MINV MLCP MLIT MLIV

MLMC MLMV MLNV MLST MLTC MMLI MNRL M666 M777 M888 M999 MACP MAI1 MAI2 MAIT

MAMC MAMV MAST MATC MAV1 MBCP MBIT MBIV MBLI

MBMC MBMV MBNV MBST MBTC MINV MNRL MRRG MRRS MRSB MMAD MMBT MMBV MMCK MMDC MMIT

MMOV MMPD MMPP MMSF MMSN MMST MMVR CLDC

Corr. MicroRes (S) Cond. Spontaneous Potential

Micro-normal Cond. Micro-Inverse Cond.

Micro-inverse MML Caliper Raw

MML Internal Temperature Micro-inverse Voltage MML Motor Current MML Motor Voltage

Micro-normal Voltage MML Status MML Caliper

Micro-normal Current Micro-normal

MicroRes (S) Cond. MicroRes (G) Cond.

MMR MicroLog Normal Con. MMR MicroLog Inverse Con

MMR Caliper Raw MMR MicroRes Current 1 MMR MicroRes Current 2 MMR Internal Temperature

MMR Motor Current MMR Motor Voltage

MMR Status MMR Caliper

MMR MicroRes Voltage 1 MMR Caliper Raw

MMR Internal Temperature MMR MicroLog Voltage (I)

MMR MicroLog Current MMR Motor Current MMR Motor Voltage

MMR MicroLog Voltage (N) MMR Status MMR Caliper

MMR MicroLog Inverse MMR MicroLog Normal

MicroRes Resistance (G) MicroRes Resistance (S) Corr MicroRes Resis. (S)

MMS.C A/D Offset Voltage MMS.C Borehole Temp. MMS.C Battery Voltage

MMS.C Sonde Time MMS.C DC+ DC–

MMS.C Board Temperature MMS.C 0V Offset

MMS.C Paine Drive Volt. MMS.C Paine Pressure

MMS.C Flash Mem. Status MMS.C Sample Number

MMS.C Status MMS.C Reference Voltage

Density Caliper


Compact Laterolog ElectrodeMLE

Compact MicroLogMML

Compact Memory SondeMMS-C

Compact MicroResistivityMMR

Compact Photo DensityMPD




DCCP DCOR DEN

DENF DENN DPOR DPRD DPRL DPRS FMDT HDEN MTXD NMDT PCIT

PCMC PCST PDFC PDFE PDFL PDFS PDFT PDHD PDIT

PDNC PDNE PDNL PDNS PDNT PDPE PDSF PDST PFSD PFTC PNSD PNTC XPOR AVOL DFCL HVOL GCGR

GR GRPO GRTH GRUR HTSG RAKT RAKU RAUT SGD1 SGD2 SGD3 SGD4 SGD5 SGD6 SGG1 SGG2

Density Caliper Raw Density Correction

Compensated Density Far Spaced Density

Near Spaced Density Base Density Porosity Dolomite Density Por.

Limestone Density Por. Sandstone Density Por. Far Mean Dead Time

Vectar Processed Density Matrix density

Near Mean Dead Time MPD Internal Temperature

MPD Motor Current MDC Status

Far Density Counts MPD Far EHT

Far Lock Counts Far Density Spectrum

Far Density Dead Time MPD PE Hard Counts

MPD Internal Temperature Near Density Counts

MPD Near EHT Near Lock Counts

Near Density Spectrum Near Density Dead Time

PE MPD PE Soft Counts

MPD Status Far Density SDU

Far Total Counts, No D/T Near Density SDU

Near Total Counts, No D/T Crossplot Porosity Annular Volume

Differential Caliper Hole Volume

SGS Corrected Gamma Ray SGS Gamma Ray Potassium Gamma Thorium Gamma Uranium Gamma

SGS EHT 2 TH/K U/K

TH/U Disc. 1 (Gamma Ray Raw)

Disc. 2 Disc. 3 Disc. 4 Disc. 5 Disc. 6 Gate 1 Gate 2


Compact Photo DensityMPD

Compact Spectral GammaMSG

MPD, MTC, MML, MMR, MIEMPD, MTC, MML, MMR

MPD, MTC, MML, MMR, MIE



Curve Mnemonic

SGG3 SGG4 SGG5 SGHT STSG DL11 DL12 DL21 DL22 DT34 DT35 DT45 DT46 DT56 DTSM FGAP FGTR FGTT PK11 PK12 PK21 PK22PT11 PT12 PT21 PT22 RN11 RN12 RN21 RN22 SEM1 SEM2 SHRD SHRL SHRS SIV1 SIV2

SPRD SPRL SPRS STGN STIT STPK STSS STWS TR11 TR12 TR21 TR22 TS11 TS12 TS21 TS22 VL34 VL35 Vl45

Gate 3 Gate 4 Gate 5

SGS EHT 1 SGS Status

4' Discriminator Level 6' Discriminator Level 3' Discriminator Level 5' Discriminator Level

3–4' Compensated Sonic 3–5' Compensated Sonic 4–5' Compensated Sonic 4–6' Compensated Sonic 5–6' Compensated Sonic

Smeared 3–4' Sonic Fixed Gate Peak Ampl.

Fixed Gate Peak Tr. Time Fixed Gate Dsc. Tr. Time

4' Peak Amplitude 6' Peak Amplitude 3' Peak Amplitude 5' Peak Amplitude

4' Time To Pk. Amplitude 6' Time To Pk. Amplitude 3' Time To Pk. Amplitude 5' Time To Pk. Amplitude 4' Road Noise Max. Defl. 6' Road Noise Max. Defl. 3' Road Noise Max. Defl. 5' Road Noise Max. Defl.

Waveform-PROCESSED Semb. 1 Waveform-PROCESSED Semb. 2

Dolomite H-R Sonic Por. Limestone H-R Sonic Por. Sandstone H-R Sonic Por.

Waveform-PROCESSED Sonic 1 Waveform-PROCESSED Sonic 2

Dolomite Sonic Porosity Limestone Sonic Porosity Sandstone Sonic Porosity

MSS Gain Status MSS Internal Temperature

MSS Peak Status MSS Status

MSS Waveform Seg. Status 4' Transit Time 6' Transit Time 3' Transit Time 5' Transit Time

4' Transit Time Set 6' Transit Time Set 3' Transit Time Set 5' Transit Time Set

3–4' Compensated Sonic 3–5' Compensated Sonic 4–5' Compensated Sonic


Compact Sonic SondeMSS

Compact Spectral GammaMSG




VL46 VL56 VLSM WF11 WF12 WF21 WF22 WL11 WL12 WL21 WL22 WS11 WS12 WS21 WS22 WSEG MSPD SMDA SMDB SMM0 SMM1 SMM2SMM3 SMM4 SMM5 SMM6 SMM7 SMST SMTD SMTU CLTC CLXC CLYC CLZC TCCP TCIT

TCMC TCMV TCST XCCP XCIT

XCMC XCMV XCST YCCP YCIT

YCMC YCMV YCST ZCCP ZCIT

ZCMC ZCMV ZCST SBHN SBNE

4–6' Compensated Sonic 5–6' Compensated Sonic

Smeared 3–4' Sonic 4' Waveform 6' Waveform 3' Waveform 5' Waveform

4' Peak Window Length 6' Peak Window Length 3' Peak Window Length 5' Peak Window Length 4' Peak Window Start 6' Peak Window Start 3' Peak Window Start 5' Peak Window Start Waveform Segment

Logging Speed DST Analog Channel A DST Analog Channel B

SMS Channel 0 SMS Channel 1 SMS Channel 2 SMS Channel 3 SMS Channel 4 SMS Channel 5 SMS Channel 6

SMS Channel 7 (temp.) SMS Status

DST Downhole Tension DST Uphole Tension

Two-Arm Caliper X Two-Arm Caliper Y Two-Arm Caliper Z Two-Arm Caliper

Two-Arm Caliper Raw MTC Internal Temperature

MTC Motor Current MTC Motor Voltage

MTC Status Two-Arm X caliper Raw

MTX Internal Temperature MTX Motor Current MTX Motor Voltage

MTX Status Two-Arm Y Caliper Raw

MTY Internal Temperature MTY Motor Current MTY Motor Voltage

MTY Status Two-Arm Z Caliper Raw

MTZ Internal Temperature MTZ Motor Current MTZ Motor Voltage

MTZ Status SER Paine P. (A) 100s

SER Paine P. (A) 1s


Compact Service UnitMSU

Compact Two-arm CaliperMTC

Shuttle Electric ReleaseSER

Compact Sonic SondeMSS



Curve Mnemonic

SBTH SBTN SBTO SPET SPEX SPGB SPGF SPGP SPHN SPIT

SPMC SPMS SPMT SPNG SPOE SPPP SPPS SPPV SPQC SPQH SPQT SPSL SPST SPTH SPTN SPTO SQDF SQFC SQHN SQOE SQTE SQTH SQTM SQTO WBHN WBNE WBTH WBTN WBTO WQDF WQFC WQHN WQOE WQTE WQTH WQTM WQTO WRET WREX WRGB WRGF WRGP WRHN WRIT

WRMC WRMS

SER Paine P. (A) 10000s SER Paine P. (A) 10s

SER Paine P. (A) 1000s SER Paine Gauge Temp.

SER Extended Status SER Paine Pressure (Abs) SER Paine Pres. (Gauge) SER Paine Pressure Raw

SER Paine P. (G) 100s SER Internal Temperature

SER Motor Current SER Motor Speed

SER Motor Temperature SER Paine Voltage (–ve)

SER Paine P. (G) 1s SER Piston Position

SER Paine Voltage (+ve) SER Paine Voltage

SER Quartzdyne Pres. (C) SER Quartzdyne Temp. (C) SER Quartzdyne Reference SER Piston Swept Volume

SER Section Status SER Paine P. (G) 10000s

SER Paine P. (G) 10s SER Paine P. (G) 1000s

SER Quartzdyne Pressure SER Quartzdyne Fraction

SER Quartzdyne 100s SER Quartzdyne 1s

SER Quartzdyne 10s SER Quartzdyne 10000s SER Quartzdyne Temp. SER Quartzdyne 1000s WRT Paine P. (A) 100s

WRT Paine P. (A) 1s WRT Paine P. (A) 10000s

WRT Paine P. (A) 10s WRT Paine P. (A) 1000s

WRT Quartzdyne Pressure WRT Quartzdyne Fraction

WRT Quartzdyne 100s WRT Quartzdyne 1s

WRT Quartzdyne 10s WRT Quartzdyne 10000s WRT Quartzdyne Temp. WRT Quartzdyne 1000s

WRT Paine Gauge Temp. WRT Extended Status

WRT Paine Pressure (Abs) WRT Paine Pres. (Gauge) WRT Paine Pressure Raw

WRT Paine P. (G) 100s WRT Internal Temperature

WRT Motor Current WRT Motor Speed


Wireline Release ToolWRT

Shuttle Electric ReleaseSER




WRMT WRNG WROE WRPP WRPS WRPV WRQC WRQH WRQT WRSL WRST WRTH WRTN WRTO BCDC BCDL BCMC BCML BCSC BCSL BMOD CLPR COAL COMP DCAL DENA DES1 DES2 DILL DPHI DTA

DTP1 DTP2 DTP3 DTP4 DTP5 EDIT ESTP FEDT

FF FGAS FHT0

FP FPRF FPSH FRPG

FT FWD1 FWD2 FWD3 FWD4 FWD5 GMOD

HI INVD INVM

WRT Motor Temperature WRT Paine Voltage (–ve)

WRT Paine P. (G) 1s WRT Piston Position

WRT Paine Voltage (+ve) WRT Paine Voltage

WRT Quartzdyne Pres. (C) WRT Quartzdyne Temp. (C) WRT Quartzdyne Reference WRT Piston Swept Volume

WRT Section Status WRT Paine P. (G) 10000s

WRT Paine P. (G) 10s WRT Paine P. (G) 1000s Corr. Deep Conductivity

Corrected Deep Laterolog Corr. Micro Conductivity

Corr. Micro Laterolog Corr. Shallow Conduct. Corr. Shallow Laterolog

Bulk Modulus Closure Pressure Volume of Coal

Bulk Compressibility Differential Caliper Apparent Density

Data Edit Shade One Data Edit Shade Two

Invasion Depth Density Porosity Apparent Delta T Delta Pressure 1 Delta Pressure 2 Delta Pressure 3 Delta Pressure 4 Delta Pressure 5 Data Edit Curve

Estim. Poisson's Ratio Data Edit Curve Formation Factor

Gas Flag Fracture Extent 0

Formation Pressure Perforations

Closure Pressure Grad. Fracture Pressure Grad. Formation Temperature

Fracture Width 1 Fracture Width 2 Fracture Width 3 Fracture Width 4 Fracture Width 5 Shear Modulus Hydrogen Index Invasion Depth

Maximum Invasion Depth


Wireline Release ToolWRT

AnalysisAnalysis

Curve Mnemonic



Curve Mnemonic

LEDT NETP NETR NPHI PERM PHDN PHDS PHI1 PHI2 PHIA PHID PHIE PHIG PHIN PHIS PHIX PHSN POIR PORE RHOG

RO RTLC RTLL RWA

RXOC RXOL RXRT SATD SATP SGAS SHYC SOIL SPVF SSVF SW

SWWW SXO

VANH VCMB VDOL VGAS VHAL VHYC VLME VMA VOIL VOL1 VOL2 VOL3 VP14 VP15 VP20 VP25 VP30 VP40 VP60

Data Edit Curve Nett Pay

Nett Reservoir Neutron Porosity

Permeability Density/Neutron Porosity Density/Sonic Porosity

Primary Porosity Bad Hole Porosity

Apparent Neutron Por. Density Porosity Effective Porosity Gaymard Porosity Neutron Porosity Sonic Porosity

Crossplot Porosity Sonic/Neutron Porosity

Poisson's Ratio Pore Pressure

Apparent Matrix Density RO

Rt Conductivity Rt

Apparent Water Res. Rxo Conductivity

Rxo RXO/RT

Mean Saturation Depth Saturation Profile Saturation of Gas

Saturation Hydrocarbons Saturation of Oil

Delta T Compressional Delta T Shear

Saturation of Water Saturation of Water

Sat Mud Filtrate + Water Volume of Anhydrite

Vw + Voil Volume of Dolomite

Volume of Gas Volume of Halite

Volume of Hydrocarbons Volume of Limestone

Matrix Volume Volume of Oil

Phie + Vlime + Vsand Phie + Vsand Vsh + Vanhy

Enhanced Shallow Cond. VP15 VP20

Enhanced Medium Cond. VP30 VP40 VP60


AnalysisAnalysis




VP65 VP85 VPFE VRAT VSH

VSND VW VXO

WAV1 YMOD

Enhanced Deep Cond. VP85

Vivid Shallow FE Velocity Ratio

Volume of Shale Volume of Sandstone

Volume of Water Vol Mud Filtrate + Water

Invasion Profile Young's Modulus


AnalysisAnalysis

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Log Interpretation Charts™Compact Tool Series

Documents

Log Interpretation Charts Compact™ Tool Series - …estimulacion.angelfire.com/chart_micro_wft051974.pdf · The chart allows F to be generated from porosity for values of m between