Seismic Data - GradeBuddy

University of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

Seismic Data

OutlineUniversity of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

Seismic data I. Basic reflections

SourcesAcoustic impedance and reflection coefficientConvolutionDimensions of seismic data

II. Time and placeTimeStatics correctionsGathersConversion to depthMigration

III. Unfortunate things that happenLoss of resolution with increasing depthMultiplesPull-upsPull-downs

IV. Good things that happenRecognition of structuresSeismic stratigraphyBright spotsFlat spots4D seismic

SourcesUniversity of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology



II. Time and placeTimeStatics correctionsGathersConversion to depthMigration




A very Onshore view:



A very Onshore view:

www.dme.qld.gov.au/zone_files/geoscience_images/seismic3.jpg pubs.usgs.gov/of/2000/of00-304/htmldocs/chap01/images/seismic.gif

www.dme.qld.gov.au/zone_files/geoscience_images/seismic3.jpg pubs.usgs.gov/of/2000/of00-304/htmldocs/chap01/images/seismic.gifCommons.wikimedia.org and www.voyageuroil.com . . . .

www.dme.qld.gov.au/zone_files/geoscience_images/seismic3.jpg pubs.usgs.gov/of/2000/of00-304/htmldocs/chap01/images/seismic.gifCommons.wikimedia.org and www.voyageuroil.com . . . .

www.dme.qld.gov.au/zone_files/geoscience_images/seismic3.jpg pubs.usgs.gov/of/2000/of00-304/htmldocs/chap01/images/seismic.gif



II. Time and placeTimeStatics corrections and shot gathersCommon-midpoint gathersConversion to depthMigration



DepthUniversity of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology





II. Time and placeTimeStatics corrections and shot gathersCommon-midpoint gathersConversion to depthMigration



MigrationUniversity of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology

MigrationUniversity of Georgia Department of Geology GEOL 4320/6320 Petroleum Geology


Anstey - Simple Seismics


Brown 2004 AAPG Memoir 42


Bro

wn

2004

AA

PG M

emoi

r 42


Bjørlykke 2010

Gluyas & Swarbrick 2004

Selley 1998

Sources

Schlumberger Oilfielld Glossary

Conaway 1999

Assaad 2008

Shepherd 2009

Shell Petroleum Handbook (1983)

Rigzone

Crain’s Petrophysical Handbook

North 1980

AAPG Basic Well Log Analysis course notes

Schlumberger Log Interpretation P&I

Glover’s Petrophysique

Asquith and Krygowski 2004

Baker-Hughes Atlas of Log Responses

Jonathan B. Martin UF class notesWikipedia

Tissot & Welte (1984)

refs

Selley 1978, Porosity gradients in North Sea oil-bearing sandstones: Jo. Geol. Soc. London v. 135, 119-132.

Jaime Toro UWV class files

Anstey - Simple Seismics

Brown (ed.) 2004 AAPG Memoir 42

Ashton et al. (1994)

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Notes

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University of Georgia Department of Geology GEOL 4320 Petroleum Geology

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Getting started 1. Organization 2. OverviewsOil wells and their information 3. Drilling of oil wells 4. Driling of oil wells 5. Well logs 6. Well logs 7. Well logs 8. Subsurface geologyPetroleum accumulations 9. Source rocks and migration 10. Reservoir rocks and seals 11. Traps (and basins) 12. Petroleum Systems - Magoon & Dow 94The seismic method 13. Seismic method 14. Seismic method 15. Seismic method16. Production (prim, sec, wells)17. Fields, pools, pay etc.18. Distribution of petroleum by trap, res,age

of reservoir,19. Oil business

ExercisesLogs to cross-sectionsMapEast Texas Field

30 class meetingsIntro

Student reports on fields by individual grad students (& by groups of undergrads/) at three per meeting 10 grads 10 ugrads = 4-5 meetings) at two per meeting 10 grads 10 ugrads = 6-7 meetings

outline

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Course outlineWhite sans-serif Helvetica text

TopicsIntroductory overviewsSubsurface envts - water chem, T&P

OverpressureDrilling Well LogsSubsurface geology - maps & xsxnsHydrocarbon deposits (Coal, petroleum, B’s uncons)Origin of petroleumSource rxTrapsReservoir types & propsSealsBasins - types & historiesSeismic investigationProduction (prim, sec, wells, Fields, pools, etc.Petroleum types, props, and chemDistribution of petroleum by trap, res, age of reservoir,Farm outs, in, landmen, playsOil business - History Price

ExercisesLogs to cross-sectionsMapEast Texas Field

30 class meetingsIntro

Student reports on fields by individual grad students (& by groups of undergrads/) at three per meeting 10 grads 10 ugrads = 4-5 meetings)


Introductory overviews

Hydrocarbon depositsKinds of hydrocarbons (coal, oil, gas, oil shale, etc.)Segregation of oil and gas

Progress in development of petroleum resourcesExploration, production, refining, marketing

Five components of a petroleum accumulationSource, migration, reservoir, trap, seal

Rock properties: porosity, permeability, rheology

Light gray Times New Roman textThe Petroleum Industry

Companies

Oil Price

Ways of lifeConfidentiality/secrecy (vs friendly discussion or formal publication)Advocacy as well as analysis.Not having to beg for funding to work on projects of management’s choice.Working on projects of management’s choice that are going places


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Seismic Data - GradeBuddy