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通过研究大庆长垣以东地区登娄库组气势场及其分布特征,将该区登娄库组划分为4个含气系统,即昌德—汪家屯—升平、肇州、尚家和朝长含气系统。通过其天然气成藏条件分析比较,得到合气条件最好的是昌德—汪家屯—升平和朝长含气系统,其次是肇州含气系统,最差为尚家含气系统。在此基础上提出了该区登娄库组天然气的二种成藏模式,即古隆起之上断背科、断块和构造—岩性圈闭天然气成藏模式和斜坡区断层岩性圈闭天然气成藏模式。
By studying the gas potential and distribution characteristics of Denglouku Formation in the east of Daqing Changyuan, the Denglouku Formation in this area is divided into four gas systems: Changde-Wangjiatun-Shengping, Zhaozhou, Shangjia and Zhaochang Gas system. Through the comparison and analysis of natural gas accumulation conditions, the best amalgam conditions are Changde-Wangjiatun-Shengping and North-long gas systems, followed by gas systems in Zhaozhou, and the lowest gas-bearing systems in Shangjia. On this basis, two kinds of gas accumulation models of Dengloukou Formation in this area are proposed, that is, the gas accumulation pattern of the dugout, fault block and tectonic-lithologic trap in the paleo-uplift and the lithologic trap gas in the slope area Accumulation mode.