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针对克拉玛依油田七中、东区克拉玛依组油藏受断裂夹持控制,形成了该区沿断裂切割位移和遮挡全区油藏的基本构造形态特征。文中通过一系列基础构造地质工作,描述了该区油藏的断裂遮挡及其构造位置;阐明了油藏沿断裂一带构造部位高,压力保持程度低,油井总体注水受效差,是该区油藏调整挖潜的重要部位;分析并指出了该区逆掩断裂形成的油藏断裂掩覆含油带,断裂面处于低倾角向上变陡转折部位,下盘受断裂遮挡控制,具明显推复挤压形态,其压应力集中,单井产油量高,是该区油藏断裂扩边主要潜力区。
For the Karamay Oilfield, the reservoirs in the Karamay Formation in the eastern part of the Karamay Oilfield are controlled by faults and form the basic tectonic features of the reservoirs along the fault cutting and displacement and in the whole area. In this paper, a series of basic tectonic work is carried out to describe the fault blockage and its tectonic location in this area. It is clarified that the reservoir has a high tectonic position along the fault and a low degree of pressure retention, The important part of reservoir potential adjustment and tapping is analyzed and pointed out. The oil-bearing zone of the fault fracture cover in the area formed by overthrusting the fault is analyzed and pointed out. The fracture surface is steeply turning upwards at low inclination angle. The lower plate is controlled by fault occlusion, Morphology, concentration of compressive stress and high single-well oil production are the main potential areas for oil accumulation in the fault area.