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The AAPG/Datapages Combined Publications Database

AAPG Special Volumes


Pub. Id: A010 (1972)

First Page: 244

Last Page: 251

Book Title: M 16: Stratigraphic Oil and Gas Fields--Classification, Exploration Previous HitMethodsNext Hit, and Case Histories

Article/Chapter: Use of Gravity, Magnetic, and Previous HitElectricalNext Hit Previous HitMethodsNext Hit in Stratigraphic-Trap Exploration: Geophysical Exploration Previous HitMethodsNext Hit

Subject Group: Field Studies

Spec. Pub. Type: Memoir

Pub. Year: 1972

Author(s): L. L. Nettleton

Editor(s): Paul L. Lyons


Gravity, magnetic, and Previous HitelectricalNext Hit Previous HitmethodsNext Hit of prospecting can be useful in exploration for pinchout and reef traps. A pinchout zone might produce a recognizable gravity anomaly as a result of the density contrast (1) between the porous sandstone and the adjacent beds or (2) between the water-saturated and oil-saturated parts of the sandstone section. Reefs also can produce gravity anomalies as a result of differences in density between the reef material and the laterally adjacent beds--whether these beds are salt, limestone, or shale. Where the reef is in shale, compaction of the shale in the area adjacent to and above the reef is an important factor. Magnetic Previous HitmethodsNext Hit are useful where basement structure is a factor in formation of stratigraphic traps. The use of Previous HitelectricalNext Hit Previous HitmethodsNext Hit in exploring for stratigraphic traps is much less promising. Overall, however, these potential Previous HitmethodsTop have possibilities for application in the search for certain types of stratigraphic traps.

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