特低渗透高饱和油藏合理流压探讨及应用  

Discussion and Application of Reasonable Flowing Pressure of Extra-Low Permeability and High Saturation Oil Reservoirs

作　　者：曹军[1] 王磊[1] 刘萍[1] 王萍[1] 薄小松[1] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院

出　　处：《低渗透油气田》2012年第1期103-106,共4页

摘　　要：华池油田为特低渗透高饱和油藏的典型代表，针对华池油田，提出了确定合理流压的具体方法。该方法不仅考虑了油、气、水三相渗流，而且考虑了启动压力梯度和岩石的应力敏感性，从地层供液和泵的排液两方面．理论结合矿产实际，综合确定合理流压。对确定不同地层压力、不同含水阶段的同类油藏合理流压具有一定的借鉴意义。Huachi oilfield is a representative of extremely-low permeability and high saturation reservoir. In the light of these in Huachi oilfield ,a specific method is put forward to solve the reasonable flowing pressure of oil wells. The method takes into account not only the three-phase percolation of oil, gas and water, but also starting pressure gradient and stress sensibility of rock. Combining theory with practice, the reasonable flowing pressure is determined synthetically from two aspects of fluid supply of the foemation and the liquid disposal of pump. The method could be used for reference to determine the reasonable flowing pressure of the same kind of oil deposits at the various stages of formation pressure and water-cut.

关 键 词：启动压力梯度 应力敏感性 IPR曲线 合理流压 泵效 

分 类 号：TE348[石油与天然气工程—油气田开发工程]