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| Keywords | |
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volcanic rock exploration |
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stratigraphic onlap hydrocarbon gas reservoir |
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low amplitude structural gas reservoir |
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tight gas reservoir |
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Xuxi slope belt |
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Xujiaweizi fault depression |
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LIU Jia-Jun |
| PubMed | |
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Article by Liu, J. J. |
Analysis on hydrocarbon accumulative conditions in volcanic rocks of Xuxi slope belt in Xujiaweizi fault depression
LIU Jia-Jun
Exploration and Development ��esearch Institute of Daqing Oilfield Company Ltd�� ��Daqing 163712��Heilongjiang��China
Hydrocarbon source rock conditions��reservoir characteristics and sealing conditions are analyzed�� The results show that the key problem influencing exploration is uncler in recognition on the gas reservoir type in volcanic rocks of Yingcheng Formation in Xuxi slope belt of Xujiaweizi fault depression�� Different from the typical volcanic structural- lithologic reservoir in Xuzhong and Xudong areas��there are stratigraphic onlap hydrocarbon gas reservoir��low amplitude structural gas reservoir and tight gas reservoir in the Xuxi slope belt��by the analysis of typical gas reservoir and main controlling factors�� Stratigraphic onlap traps and low amplitude structural traps in the central Xuxi slope belt�� and reservoir developed area of acid volcanic rocks and intermediate- basic volcanic rocks in the southern and northern slope belt are the next favorable targets for exploration��