Gas-Bear ing Formation Identification in High Evolution Area Using Reservoir Bitumen Characteristic

Abstract

Abstract: The fingerprint characteristics on mass-chromatograph chart of saturated hydrocarbon extracted from reservoir bitumen is widely used to identify reservoir fluid types, with the development of technology and method of petroleum geochemistry. However, the reservoir fluid type in high-evolution area can't be exactly identified with this method. Based on analysis of the reservoir feature in high-evolution area, a new reservoir bitumen classification is suggested. In view of the soluble ability in the organic solvent, the reservoir bitumen in high-evolution area can be divided into two types of soluble reservoir bitumen, one is in free state and the other in included state. The identification of these two soluble reservoir bitumen is integrated with the available geochemistry methods for recognizing oil, gas and water zones/layers, hence proper identification of gas-bearing formation and non-gas-bearing formation in the high-evolution area is exactly made, providing sound scientific basis for development scheme preparation and prospect evaluation of natural gas exploration.

Key words: reservoir, bitumen, identification, gas-bearing formation, gas reservoir, identification

CLC Number:

HU Shou-zhi, FU Xiao-wen, WANG Ting-dong. Gas-Bear ing Formation Identification in High Evolution Area Using Reservoir Bitumen Characteristic[J]. Xinjiang Petroleum Geology, 2006, 27(4): 429-431.

References

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