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千米桥潜山是黄骅坳陷最典型的新生古储型油气藏 ,恢复潜山古构造是认识其油气藏特征的重点和难点之一。运用地质力学方法研究潜山内幕构造之后认为 ,该潜山的形成基础是古生界印支期宽缓复背斜 ,在燕山期挤压构造作用下形成由逆冲叠瓦扇和反冲断层构成的三角带内幕构造 ,抬升受侵蚀形成潜山主体 ,喜马拉雅期的两次右旋拉张使潜山掀斜定型 ,晚第三纪以来发生整体热沉降 ,潜山两侧凹陷沙三段生成油气向潜山侧向运移成藏。图 4参 4(吴李泉摘 )
The Qimianqiao buried hill is the most typical neoproterozoic oil and gas reservoir in the Huanghua depression, and the restoration of the buried hill ancient structure is one of the key and difficult points to recognize the characteristics of the oil and gas reservoir. After studying the buried structure of buried hill by means of geomechanics, it is considered that the buried hill is formed by the Indosinian Braidian anticlinal anticline of the Paleozoic and formed by the thrust crustal fan and thrust fault Formed in the delta belt inside the tectonic structure, uplifted and eroded to form the main body of the buried hill. The Himalayan double-delaminated tension hill stereotypes, since the Late Tertiary whole thermal settlement occurred, the buried hill on both sides of the sand formation Shahejie Oil and gas to the lateral migration of buried hill reservoir. Figure 4 Senate 4 (Wu Liquan pick)