THE GEOCHEMICAL CHARACTERISTICS OF NATURAL GAS AND DISCUSSION ON GAS SOURCE IN BOGU 4 BURIED BILL
Received date: 2007-02-04
Revised date: 2007-07-31
Online published: 2007-10-10
The deep natural gas in Gubei-Bonan area is characterized as multi-source and complex genesis, and source-mixed gas reservoirs are generally formedIn view of this problem, many parameters including chemical component, carbon isotope and light hydrocarbon composition of natural gas and biomarkers of associated crude oil, were used to clarify the geochemical characteristics and genesis of Ordovician natural gas in Bogu 4 buried hill, in comparison with natural gas nearby It is proposed that the natural gas would be mainly composed of high-mature oil-type gas with little mixing of coal-type gas The gas source is determined by the geochemical characteristics of natural gas and source rocks, combining with analysis on geologic condition of gas pools The research results show that the gas in Bogu 4 buried hill is mainly derived from the upper layer of member4 source rocks in the Shahejie Formation in Bonan sag, mixed with the contributi. On of coal measure in Permian\|Carboniferous in Gubei area, and the associated crude oils have the similar process.
WANG Li,JIN Qiang,LIN La-mei,YIN Chang-he,SONG Guo-qi . THE GEOCHEMICAL CHARACTERISTICS OF NATURAL GAS AND DISCUSSION ON GAS SOURCE IN BOGU 4 BURIED BILL[J]. Natural Gas Geoscience, 2007 , 18(5) : 715 -719,749 . DOI: 10.11764/j.issn.1672-1926.2007.05.715
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