Adv FltPropCalc

8/18/2019 Adv FltPropCalc

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FloGrid User Course Fault Prop

Module - Fault Property Calculator

Fault Property Calculator: what

is it & how does it compare to the

ECLIPSE default?

Steps:

Fault Thic!ess

Shale "ou#e $atio

Fault Permea%ility

Tra!smissi%ility Multipliers

Exercise


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Fault Property Calculator

Calculates fluid flow properties for user-selected faults

$euires

Cor!er poi!t Flo"rid model

' litholo#y i!dicator (ie $ocType) *T"+

Property #rid or ta%ular i!formatio!

I,F'.LTM.LT*.M property

Calculated properties ca! %e e/ported as ECLIPSE eywords


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Fault Styles

0ptio!s Tra!smissi%ility Multiplier

1efault *o!e applied

Seali!#*o cross-fault flow

M.LTFLT 2 3 for whole fault

Co!sta!t Multiplier

$educed cross-fault flow

M.LTFLT 2 Co!sta!t for whole fault

1eri4ed Multiplier

$educed cross-fault flow

"eolo#y-%ased multiplier calculated for

each cell pair 5u/taposed across fault


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Fault Tra!smissi%ility--ECLIPSE 1efault

C o m p a r e s

t o

P e r m h e r e

L o o k s a t

P e r m h e r e

3


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Fault Tra!smissi%ility6Flo"rid 1eri4ed

1

“Smear” of material the

fault has passed through


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7ow?

.ses structural i!formatio!

from the #rid to calculate fault

displaceme!t

7ow?



displaceme!t

.ses litholo#ic i!formatio! to

estimate fault 8o!e thic!ess

& permea%ility

7ow?



displaceme!t

.ses litholo#ic i!formatio! to

estimate fault 8o!e thic!ess

& permea%ility

Tra!smissi%ility multipliers

are the! calculated for eachcell that lies ad5ace!t to each

fault

1eri4ed Multiplier

6

t,kTrans Multiplier


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Steps to 1eri4e Tra!smissi%ility

Estimate

thickness of

fault face

Calculate quantity

of shale the fault

has come into

contact with

Calculate

permeaility of

fault face

Estimate

transmissiility

across the fault

face


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Fault Thic!ess $elated to 9rittle!ess Factor) % i

%i is related to the mecha!ical

stre!#th of the rocs at the time of

deformatio!

I!ter%edded sa!ds & shales

te!d to produce thi!!er fault

8o!es (ie smaller %i 4alues+

Thic) well-ceme!ted

sa!dsto!es te!d to produce

thicer fault 8o!es (ie lar#er %i

4alues+


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Shale "ou#e $atio

Shale #ou#e ratio is a measure of

shale or clay that ha4e slid past a

particular reser4oir hori8o!

Shale #ou#e ratio is ofte! used as a

pro/y for fault seal i! e/ploratio!

a!d productio! sce!arios

Calculated as the fractio! of shale i!

the #rid cells that ha4e slid past a

particular locatio!

May %e a! i!termediate step for

calculati!# fault tra!smissi%ility

Vsh1

Vsh2

Vsh3

Vsh4

d i s p l a c e m e n t

d

dV

SGR i

iis!∑ ×

=

d1

d2

d3

d4


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Fault Permea%ility

Choices %ased upo! literature & i!dustry practice

1isplaceme!t wei#hted sum

'rithmetic-a4era#ed

7armo!ic-a4era#ed

$oc-type 5u/tapositio!

Euatio! relati!# fault permea%ility to displaceme!t a!d

shale #ou#e ratio (Ma!8occhi et al ;


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Tra!smissi%ility Multipliers

.ses fault thic!ess a!d permea%ility with #rid cell #eometry

a!d properties

Choose #rid cell permea%ility property

Calculates ratio of tra!smissi%ility with fault prese!t a!d withfault a%se!t


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E/ercise > Fault Property Calculator

1ata: Cloudspi!

Create *T" Property to use as Shale Co!te!t

1eri4e Fault Tra!smissi%ility Multipliers

iew the Face-9ased Fault Properties

E/port ECLIPSE eywords

!


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E!d of Module

Master Presenta

tion
http://00_adv_master.ppt/#Fault%20Styles%20http://00_adv_master.ppt/#Fault%20Styles%20http://00_adv_master.ppt/#Fault%20Styles%20http://00_adv_master.ppt/#Fault%20Styles%20

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Adv FltPropCalc