Biogenic gas - its formation and economic significance
Conference
·
OSTI ID:214815
- Texaco E&P, Houston, TX (United States)
Recently there has been growing interest in gas exploration. Much of this focus has been directed toward thermogenic gas derived from cracking kerogen and/or previously generated liquid hydrocarbons. Such gases form late in a basin`s history at elevated temperatures. A significant proportion of the global a reserve-base is, however, not thermogenic but of bacterial origin. Biogenic gases form early in a gas basin`s history at low temperatures. Because of their different origins, different exploration strategies are required for the two types of gas. Much of our current understanding of the formation of biogenic gas has been derived from the study of known occurrences. In order to gain insight into the constraints on formation of commercial biogenic gas deposits in the Po Valley, Cook Inlet, Powder River basin and West Siberian basin are examined. Information from this review and an examination of biological and physical processes can then be used to establish the characteristics of gas source rocks, the influence of sedimentation rate, the role of thermal history, and the importance of relative timing.
- OSTI ID:
- 214815
- Report Number(s):
- CONF-950801--
- Country of Publication:
- United States
- Language:
- English
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