Title: Reservoir formation process of the first member of Quantou formation in Changchunling anticline, Songliao Basin
Abstract: Changchunling anticline zone is a long-term development trap structure, but there is no big breakthrough in natural gas exploration. Based on the research of source rock, reservoir, seal and other elements of petroleum geology study, along with the research results of regional tectonic evolution and gas accumulation phase, the gas reservoir formation and controlling factors of the first member of Quantou formation in Changchunling anticline were analyzed. The research result shows that there are a series of tectonic movement from fault depression stage to reversal structure stage in early Cretaceous Period, which is the main reason that there is no breakthrough in this region. The tectonic movement forms lots of faults, and the original gas reservoir was destroyed and lots of gas being lost. There are three periods petroleum accumulation in K1q1, and also has three reservoir formation processes, including later Nenjiang formation, later Mingshui formation and the formation of secondary gas reservoir in later Paleogene. The gas source fault is the major factor which controls both the accumulation and distribution of gas reservoir. A good saving condition in later Paleogene is the key point of the forming of secondary gas reservoir.
Publication Year: 2013
Publication Date: 2013-01-01
Language: en
Type: article
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