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Increasing interpreter capability in structurally complex settings through combined fieldwork, interpretation, and geocellular modeling

John G. Solum, Stephen J. Jolley and Benjamin D. Meyer
Increasing interpreter capability in structurally complex settings through combined fieldwork, interpretation, and geocellular modeling (in 3-D structural interpretation; Earth, mind, and machine, Bob Krantz (editor), Carol J. Ormand (editor) and Brett Freeman (editor))
AAPG Memoir (2016) 111: 191-218

Abstract

Interpretation of faulted reservoirs is hindered by an industry-wide lack of structural specialists, which in turn hinders the development of structurally proficient interpreters. This can have expensive consequences, including poor models of dynamic flow in reservoirs, erroneous calculations of reserves, and difficulties during well drilling. Focused training using paper maps, outcrop visits, and digital models of the same structures helps to introduce and reinforce concepts. The first component of the training is to provide participants with a set of two-dimensional seismic lines created from a geological model of a faulted reservoir. Participants must create a structure contour map containing faults that honor simple rules such as conservation of throw at fault intersections, identification of fault tips, consistent sense of offset and vergence along strike, and identification of fault relays. The second component is a visit to the outcrop from which the paper map was derived, providing the opportunity to discuss differences between faults in outcrop and faults as visible on seismic data. The final component provides participants with a digital model of the outcrop, giving them the opportunity to create a geologically valid interpretation that can be used for fault property prediction or reservoir model creation. This three-pronged training provides grounding in structural geology and lets interpreters know the rules that their fault framework models should obey. Applying these techniques during interpretation saves time by ensuring that "busts" are caught and fixed before they become institutionalized, and also closes the gap between the geophysicist/seismic interpreter and the geologist/static modeler.


ISSN: 0271-8529
Serial Title: AAPG Memoir
Serial Volume: 111
Title: Increasing interpreter capability in structurally complex settings through combined fieldwork, interpretation, and geocellular modeling
Title: 3-D structural interpretation; Earth, mind, and machine
Author(s): Solum, John G.Jolley, Stephen J.Meyer, Benjamin D.
Author(s): Krantz, Bobeditor
Author(s): Ormand, Carol J.editor
Author(s): Freeman, Bretteditor
Affiliation: Shell Global Solutions International, Rijswijk, Netherlands
Affiliation: ConocoPhillips Geoscience and Reservoir Engineering Technology, Houston, TX, United States
Pages: 191-218
Published: 2016
Text Language: English
Publisher: American Association of Petroleum Geologists, Tulsa, OK, United States
Meeting name: Hedberg conference
Meeting location: Reno, NV, USA, United States
Meeting date: 20130623June 23-27, 2013
References: 34
Accession Number: 2018-018669
Categories: Economic geology, geology of energy sourcesStructural geologyApplied geophysics
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table, geol. sketch maps
N38°34'60" - N38°34'60", W109°34'00" - W109°34'00"
N29°34'60" - N30°10'00", W98°45'00" - W97°55'00"
Secondary Affiliation: Scarabus Geological Consulting, GBR, United Kingdom
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 2018
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