Delineation of Gulf of Mexico Miocene reservoirs with 3-D seismic data

Conference · Fri Mar 01 04:00:00 EST 1991 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:7024271

Wellborn, J E ^[1]; Brown, A R

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1. Conoco Inc., Houston, TX (United States)

Seismic amplitude anomalies associated with Miocene plays in the Mobile area, offshore Alabama, are well documented and well drilled. Three-dimensional seismic data permit a much better understanding of these sandstone reservoirs than the 2-D data available over most prospects. In this paper Digicon's Mobile Phase 1 3-D data have been studied and the extent of two hydrocarbon-bearing sand bodies recognized on both vertical and horizontal sections. The first example shows a sand body interpreted as an offshore bar. The second shows a more complex reservoir geometry and is interpreted as a deltaic fan deposit. Both reservoirs are stratigraphically controlled. Horizon slices were constructed for each reservoir by amplitude extraction using Conoco's interactive interpretation system. The resultant contours defined the areal extent of the reservoirs. After successful gas wells were drilled into both features, pay thicknesses and reserve calculations were made by integrating the amplitudes on the horizon slices and the well information in preparation for production.

• OSTI ID: 7024271
• Report Number(s): CONF-910403--
• Conference Information: Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Journal Volume: 75:3
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030200* -- Natural Gas-- Reserves
Geology
& Exploration
ALABAMA
ATLANTIC OCEAN
CARIBBEAN SEA
CENOZOIC ERA
DATA PROCESSING
DEVELOPED COUNTRIES
EXPLORATION
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGY
GEOPHYSICAL SURVEYS
GULF OF MEXICO
MAPPING
MINERAL RESOURCES
MIOCENE EPOCH
NATURAL GAS DEPOSITS
NORTH AMERICA
OFFSHORE SITES
PROCESSING
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEAS
SEDIMENTARY ROCKS
SEISMIC SURVEYS
STRATIGRAPHY
SURFACE WATERS
SURVEYS
TERTIARY PERIOD
THREE-DIMENSIONAL CALCULATIONS
USA