UH&CSM Fluid /DHI

Challenges in 2020

• Energy demand: 60% (?) increase

• CO2 emission increase: 60% (?)

• Hydrocarbon will be sustainable

• It is challenge to humanity

• China has to be big part to face the challenge

UH&CSM Fluid /DHI

Technical Challenges

Frontier Target

Unconventional Resources

More Accurate & Efficient

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Who will do it• National or company wide effort

• We need team up world wide: – Opening SEG Beijing Office

• Basic and application research

• Who will do it– Consortium research? – Project research?

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Fluids/DHI Consortium

• Start 1995- now (13 years)

• Sponsors (24)

Anadarko, BG, BHP, BP, CGGVeritas, Chevron, CNOOC, ConocoPhillips, Devon, Encana, Eni, ExxonMobil, Fugro-Jason, JOGMEC, Nexen, Paradigm, Petrobras, Petrochina, Rock Solid images, RWE, Shell, SLB, StatoilHydro, Total

UH&CSM Fluid /DHI

Seismic Rock Physics- Fluids/DHI Consortium

Ceremony of Opining SEG Beijing OfficeApril 3, 2008

Dr. De-hua Han (UH), Dr. M. Batzle (CSM)Manika Prasad (CSM)

UH&CSM Fluid /DHI

King Kong vs. Lisa Anne

(O’Brien, 2004)

•Green Canyon, GOM •Plio-Pleistocene•Target TVD 11800ft, OB 4100ft

Wiggles Rock & Fluid“Local Calibration”

Gas Fizz

UH&CSM Fluid /DHI

Rock Physics Seismic Attributes

Reservoir Geology

Rock and fluid Properties & models

Time, Amp., AVOSpectrum Decom.

(T, A, F)

Deposition, StructureCompact. & cement.

Seismic Rock Physics

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S =K/Ms

Md Fluid

P-wave modulus:

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PR

ES

SU

RE

TEMPERATURE

Gas-LikeBehavior

Liquid-LikeBehavior

Two PhaseRegion

CRITICAL POINT

BLACK OIL

VOLATILEOIL

RETROGRADECONDENSATE

DRY GAS

Phase Behavior

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400

600

800

10 30 50 70 90 110

Temperature (c)

Ve

loc

ity

(m/s

)

15

20

28

35

41 MPa

HEAVY GAS COMPRESSIONAL VELOCITYGas property

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Calculated Velocities Using Gvseu (API = 48.27)

Oil model

Gas modelGseu as input

Gas model G as input

Gas model Gvseu as inputGas model Gvseu as input

Data

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Calculated Vs vs. Temperature ( API = 9.38)

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Sandstone trend

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Limestone1-4Vp versus Porosity

Vpw (km/s) = 5.9239 -7.8421x f

R2 = 0.9091

2.50

3.00

3.50

4.00

4.50

5.00

5.50

6.00

6.50

7.00

0% 5% 10% 15% 20% 25% 30% 35% 40% 45%

Porosity

Vp (k

m/s

)

Vpd Vpw(C) Vpo(C) Linear (Vpw(C))

Vuggy model

Micro model

fm

fvug

Carbonate Trend

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Heavy Oil Sands

Figure 16. Heavy oil sands: potential variation of oil and sand structure.

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Temperature effect

Figure 13. Summarize all (15) the Vp data versus temperature

Liquid P.

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UH&CSM Fluid /DHI

Guest Molecules

Water Molecules

STRUCTURE I

STRUCTURE II

STRUCTURE H

STRUCTURE I

Gas Hydrate Crystal Structures

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Sand and Shale Compaction

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Fluid Property

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AVO Response

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Case StudyCase Study

Beijing

Sichuan BasinSouthwest China

Fre

qu

en

cy (

%)

Thickness (m)

100

K: <1mD

Target zone: around 2500m

Delta-plain dominated with braided channels

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Thickness

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FLUID TERM VOLUME

GAS

FIZZ?

WATER

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5 10 15 20 25

5

10

15

20

25

30

35

40

0.5

1

1.5

2

2.5

Fluid modulus

Inverted fluid bulk modulus using Lisa anne well information

KingKong

GPa

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AVO Response

Initial P.

UH&CSM Fluid /DHI

De-hua Han: dhan@uh.edu

Dr. M. Batzle: mbatzle@mines.edu

Thanks