低渗裂缝性气藏水平井参数设计  

Design of Horizontal Well Parameter in Low Permeability Gas Reservoirs

作　　者：李骞[1] 李相方[1] 尹邦堂[2] 崔力功 唐宁依[4] 

机构地区：[1]中国石油大学(北京)石油工程教育部重点实验室,北京102249 [2]中国石油大学(北京)机械与储运工程学院,北京102249 [3]川庆钻探工程公司地质勘探开发研究院,四川成都610051 [4]中石油大港油田分公司石油勘探开发研究院,天津300280

出　　处：《石油天然气学报》2011年第8期151-154,10,共4页Journal of Oil and Gas Technology

基　　金：国家"973"规划项目(2007CB209506)

摘　　要：对于低渗裂缝性气藏,由于存在发育的天然裂缝,有利于水平井的开发,但气藏储层渗透率较低,需进行储层改造才能获得较大的气井产能,所以,对于水平井的位置、井眼轨迹和参数设计就显得至关重要。提出了确定水平井适应性区域、合理井眼轨迹的原则,并提出利用正交试验来确定水平井合理参数的方法。研究得出水平井的井眼轨迹应垂直于天然裂缝方向,而正交试验法可快速、准确地确定不同指标条件下的最优水平井参数。最后,通过实例确定了实际气藏的水平井最优参数。Because there were many natural fractures in low permeability gas reservoirs,it was beneficial for horizontal well development.The permeability of reservoir was low,reservoir reconstruction was needed for higher productivity in gas wells.Therefore,it was critical important to design the position,trajectory and parameters of horizontal wells.the principles of determining the position and trajectory of horizontal wells were proposed,and the method of determining the parameters of horizontal wells with orthogonal experimental design was also proposed.According to the research,the trajectory horizontal wells should be perpendicular to the direction of natural fracture,and the method of orthogonal experimental design could quickly and accurately determine the optimal parameters of horizontal wells.Finally,the optimal parameters of horizontal wells are determined.It is important for the development of horizontal wells in low permeability gas reservoirs.

关 键 词：低渗透油气藏 天然裂缝 水平井 正交试验 参数设计 

分 类 号：TE377[石油与天然气工程—油气田开发工程]