水平井开发油藏水淹程度定量评价方法及其应用  

Quantitative evaluation method of water flooded degree of oil reservoirs developed by horizontal wells and its application

作　　者：李立峰[1] 周方喜[2] 熊建华[1] 陈刚[1] 

机构地区：[1]中石化江苏油田采油一厂,江苏扬州225265 [2]中石化江苏油田分公司,江苏扬州225009

出　　处：《西安石油大学学报（自然科学版）》2015年第5期59-63,9,共5页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：江苏省博士后科研资助计划项目"不同类型油藏水平井开发水淹规律研究"(编号:1302180C);江苏油田局级科研项目"不同类型油藏水平井开发水淹规律研究"(编号:JD13001)

摘　　要：为了利用动态资料定量评价水平井开发油藏水淹程度,运用两相渗流理论推导了包含水淹程度的函数关系,确定了计算水淹程度的思路,结合图解法提出了利用动态资料确定水淹程度的定量方法,并与数模结果、生产动态数据对比,验证了该评价方法的可行性。计算了江苏油田100余口水平井的水淹程度,将其分为整体水淹、局部水淹与点状水淹3种模式;针对低效水平井,依据水淹模式制定了不同的治理措施,其中整体水淹水平井以提液为主,其他水平井以调补层与卡堵水为主。通过分类治理单井增油超过500 t。The quantitative evaluation method of the water flooded degree of high water-cut reservoirs is presented based on the dynamic data of horizontal wells. The function including water flooded degree is derived according to two-phase percolation theory,the calculation thinking of the water flooded degree of horizontal wells is presented based on the function,and then the calculation method of the water flooded degree of horizontal wells is proposed by combining graphic method. The feasibility of the calculation method is verified through comparing the calculation results with numerical simulation results and dynamic production data. The water flooded degree of 100 horizontal wells in Jiangsu Oilfield is calculated,and the flooded mode of 100 horizontal wells is divided into three types according to the water flooded degree: overall flooded,local flooded and point flooded. The control measures for the flooded horizontal wells of different flooded modes are formulated: the measures for the flooded horizontal wells of overal flooded mode is mainly extracting liquid,and the measures for other horizontal wells are mainly layer adjusting and water plugging. The oil increase of single well is more than500 t after the measures. The research result can provide the basis for the division of the flooded mode and the formulation of potential tapping measures.

关 键 词：高含水油藏 水平井开发 水淹程度 定量评价方法 江苏油田 

分 类 号：TE357[石油与天然气工程—油气田开发工程]