正理庄油田南区东营组不稳定注水参数的优化设计  

Optimal Design for Unsteady Water-Flooding Parameters in Dongying Section,Southern Area of Zhenglizhuang Oilfield

作　　者：王顺华[1] 荣启宏[2] 王斌[2] 陈渤海[1] 明传政[1] 

机构地区：[1]胜利石油管理局石油开发中心,山东东营257000 [2]胜利油田有限公司纯梁采油厂,山东博兴256504

出　　处：《石油钻探技术》2004年第1期57-59,共3页Petroleum Drilling Techniques

摘　　要：不稳定注水提高油藏采收率机理主要包括不稳定压差作用、毛管压力作用、改变液流方向。在数值模拟研究的基础上,利用正交设计方法对正理庄油田南区东营组不稳定注水参数(注水周期、周期不对称系数、注水强度)进行了优选设计,优选结果:注水周期30d;中排周期不对称系数,第1周期为2:1,第2周期为1:2;左右两排第1周期为1:2,第2周期为2:1,以后依次类推;注水强度为50％。正交设计方法的优点在于能够用尽可能少的方案次数寻求各参数间的最佳协同。综合研究认为该区块进行不稳定注水可获得较好的开采效果。Improved oil recovery mechanisms of unsteady water flooding commonly include the intention of unstable pressure, the intention of capillary force, the change of liquid-flow direction, and so on. Based on numerical simulation and according to quadrature design method, the parameters, such as water injection period, asymmetry coefficient in a cycle, intensity of water injection, have been optimized in the cyclic water flooding process of southern region DongYing formation, Zheng Li-zhuang oilfield. The optimization procedure provided in this paper has the advantage of easy to seek for the optimum cooperation of parameters among the least projects. Research results show that this region can obtain better development effects by use of unsteady water flooding.

关 键 词：注水井 注水参数 注入量 油藏 采收率 毛管压力 注水周期 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]