Automated Structural Restoration.ppt
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Transcript of Automated Structural Restoration.ppt
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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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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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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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Structural Restoration $am"le
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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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-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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Sur/ace