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Struct3D

Automated Structural Restoration

David Meredith, Graham Williams, Jay Leonard, Andrew

Richards

Keele University

!latte River Associates

KEELE

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KEELE

Struct3D S"onsors

!D#SA

R$!S%L &!'

()$#R%* +$A(%

U*-#$RS-+& %' WAL$S, .A*G%R

K$$L$ U*-#$RS-+&, UK

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KEELE

Struct3D Aims

Automated structural restoration o/ /aulted earth models0

Generation o/ structural 1eometries at multi"le time ste"s/or "etroleum systems modellin1 2G$M Module0

Account /or com"action durin1 each sta1e o/ restoration0

Restoration inversion 4 solve /or cou"led tem"erature 5"ressure evolution used to re/ine "orosity reduction due to

chemical "rocesses0

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KEELE

$arth Models 2'aults and )ori6ons

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KEELE

+al7 %utline

Model .uildin1 5 -n"ut

-nter"retation +ools

Restoration Kinematics 5 Model %"eration

Restoration -nversion 2-terative !ressure4

+em"erature Modellin1

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KEELE

8D Seismic Lines

Model Sur/aces

-nitial seismic data source

Model sur/aces 9uilt /rominter"retation

Sur/aces:

; Stratal sur/aces

; 'aults

; Uncon/ormities

Attri9utes:

; !orosity;A1e

Model .uildin1 5 -n"uts

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KEELE

Data Structure: Attri9ute Ma"s

Attri9ute : < !orosity

Multi"le attri9ute ma"s stored with each

sur/ace o9=ect

Attri9ute : 8 A1e

Attri9ute : 3!ermea9ility

Attri9ute : > #elocity

Attri9ute ma"s are assi1ned to each sur/ace

Attri9ute : ? Any Data

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Data Structure : Attri9utes 2De"th

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KEELE

Attri9utes : Di"

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KEELE

Attri9utes : Stri7e

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KEELE

Attri9utes: Sur/ace (urvature

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KEELE

@4Dis"lay: A1e (hronostrati1ra"hy

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KEELE

Automated Structural Restoration

$arth model is structurally restored wor7in1 /romthe "resent day inter"retation 9ac7wards throu1h1eolo1ical time0

Reconstructed structural 1eometries at each timeste" are used in a /orward model run 4 solvin1 /ortem"erature and "ressure0

Restoration -nversion used to re/ine "orosityreduction due to chemical "rocesses0

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KEELE

Structural Restoration $am"le

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KEELE

Decom"action

(ou"led with structural restoration are

calculations to com"ensate /or the amount o/

decom"action o/ sediments0

(orrections /or decom"action are reBuired in

order to 1enerate the correct structural

1eometries0

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KEELE

-nitial Decom"action !arameters

-nitial !orosity

-nitial De"th

(oe//icient

-nitial restoration is im"lemented usin1 CAthy ty"e

decom"action laws

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KEELE

Sur/ace