论文部分内容阅读
三叠系延长组是长庆油田重要的油气储集层位,该套地层中存在启动压力现象。文中对该现象产生的原因作了初步探讨,认为启动压力的出现是多种因素综合作用的结果。同时以侯市地区的具体井位为例进行了分析测试。结果表明,侯市地区三叠系延长组地层存在明显的启动压力现象,且初步确定该地区启动压力梯度为0.327MPa/m。
Triassic Yanchang Formation is an important oil and gas reservoir in Changqing Oilfield. There is a starting pressure phenomenon in this formation. This paper makes a preliminary discussion on the causes of this phenomenon, and concludes that the emergence of starting pressure is the result of a combination of many factors. In the meantime, a specific well location in the Hou area is taken as an example for analysis and testing. The results show that there is a clear starting pressure phenomenon in the Triassic Yanchang Formation in Houshi area, and the initial pressure gradient in this area is 0.327MPa / m.