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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 54 (1970)

Issue: 5. (May)

First Page: 873

Last Page: 873

Title: Present Knowledge of Fundamental Processes of Oil and Gas Origin and Previous HitMigrationNext Hit Applied to Petroleum Prospecting: ABSTRACT

Author(s): B. P. Tissot

Article Type: Meeting abstract

Abstract:

There are 2 approaches to petroleum prospecting with organic geochemistry. The essential problems with direct methods are the process and the importance of Previous HitmigrationNext Hit to surface and the occurrence of hydrocarbons of superficial origin. Indirect methods are based on the knowledge of the laws of (1) distribution of organic matter as a function of paleogeographic and paleoclimatic conditions; (2) transformation of organic matter into petroleum under temperature and pressure conditions, as shown by laboratory analysis and experiments on samples from sedimentary basins; and (3) Previous HitmigrationNext Hit of petroleum from the source rocks to the reservoir and eventually alteration caused by temperature, pressure, and underground waters.

The foregoing knowledge may be applied to determine areas favorable to the transformation of organic matter into oil and/or gas and the time of formation of petroleum, compared with the time of sedimentary or structural trap formation.

These results may be obtained more particularly by Previous HitmathematicalTop models processed on computers.

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