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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 69 (1985)

Issue: 2. (February)

First Page: 290

Last Page: 291

Title: Use of Seislog for Basin Evaluation and Field Development: ABSTRACT

Author(s): R. C. Mummery

Article Type: Meeting abstract

Abstract:

Generation of synthetic sonic logs (Seislogs) from Previous HitseismicNext Hit Previous HitdataNext Hit can provide lithologic, porosity, and fluid-content identifications in a variety of

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geologic settings. Case studies illustrate the type of information that can be extracted from Previous HitseismicNext Hit Previous HitdataNext Hit on carbonate rocks, including North Sea chalk, fractured limestones in Venezuela, and porosity development in regional limestones of western Canada. In the North Sea, 2 adjacent structures that appear similar on conventional Previous HitseismicNext Hit sections Previous HitdisplayNext Hit porosity development and fluid content changes within the chalk reservoir on the Seislog section. In a South American example, the Seislog Previous HitdisplayNext Hit demonstrates the ability of Previous HitseismicNext Hit Previous HitdataNext Hit to locate vertical fracture zones. In western Canada, secondary porosity development within Devonian carbonates was identified on Seislog displays, which led to the extension of a gas field. Examples from southeast Asia Previous HitdisplayTop a variety of depositio al environments in Miocene sediments. Shallow-marine and shoreline sands can be identified in a Malaysian example. An example from the Natuna Sea displays a lower delta-plain setting, with regional shale markers and thick clastic packages. An upper delta-plain example (Gulf of Thailand) displays more faulting, expansion of clastic packages, and discontinuous channel sands.

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