喇嘛甸油田特高含水期油井合理地层压力及流压界限  

Reasonable value of the reservoir pressure and bottomhole flowing pressure of oil well at the stage of Super-high water cut for Lamadian Oilfield

作　　者：宋考平[1] 高群峰[2] 甘晓飞[3] 穆文志[1] 吴家文[1] 

机构地区：[1]大庆石油学院石油工程学院,黑龙江大庆163318 [2]辽河油田分公司国际合作部,辽宁盘锦124010 [3]大庆油田有限责任公司第六采油厂,黑龙江大庆163853

出　　处：《大庆石油学院学报》2004年第2期98-100,共3页Journal of Daqing Petroleum Institute

摘　　要：为减少油田耗水量 ,降低套管损坏速度 ,根据喇嘛甸油田室内高压物性、相对渗透率和现场实际情况 ,研究了特高含水期不同地层压力开采时 ,溶解气对原油黏度以及原油黏度对采收率的影响 .用经济评价方法确定出喇嘛甸油田各套井网油井的合理地层压力和流压界限 .结果表明 :喇嘛甸油田特高含水期合理地层压力为饱和压力 ,即 10 .7MPa ;喇嘛甸油田特高含水期合理流压基础井网为 6.5MPa ,一次加密井网为 5 .6MPa ,二次加密井网为 5 .To reduce water consumption and casing damage for Lamadian oilfield atsuper-high water cut stage, the effect of solution gas on oil viscosity and thus on ultimate recovery under various reservoir pressures is investigated based on the result of laboratory experiments on PVT, relative permeability and field practical data. Furthermore, according to the theory of economics, reasonable value of formation pressure and bottomhole pressure of oil well is determined for every well pattern. The result shows that, at super-high water cut stage, reasonable reservoir pressure for Lamadian oilfield is saturation pressure, i.e., 10.7 MPa, and reasonable bottomhole pressure is 6.5 MPa for fundamental well pattern, 5.6 MPa for the first infill well pattern and 5.1 MPa for the second infill well pattern.

关 键 词：特高含水期 地层压力 流压界限 原油黏度 剩余油饱和度 油水相对渗透率 体积系数 采收率 

分 类 号：TE319[石油与天然气工程—油气田开发工程]