Optimization Design Methods of Strata Combination and Injection Parameters for Strong Base ASP Flooding

Cheng-Jie Cheng ； Peng Ye ； Bin-Lian Zhong ； Kai Zhang ； Guang Wang

《Research Journal of Applied Sciences, Engineering and Technology》 11卷4期 (2015/10) Pp. 407-415

並列摘要

In order to determine strata combination and optimize injection parameters. This study, making full use of laboratory core flooding experiments, field test data analysis and numerical simulation, focused on the research of strong base ASP flooding about optimum design of well pattern, well spacing, strata combination and injection pattern and parameter aiming at strong base ASP pilot test blocks and industrial promotion test block in Daqing Oilfield. The results show that: strong base ASP flooding technology is well adapted to five-spot pattern. Under the same condition, oil recovery is enhanced orderly from highness to lowness for five-spot pattern, linear pattern, four-spot pattern and inverted nine-spot pattern. The recovery rate of five-spot pattern and inversed nine-spot pattern during strong base ASP is 20.5 and 17.98%. The optimum well spacing for strong base ASP is about 125 m and the decrease of well spacing can increase the controlling area and final recovery of strong base ASP, relieve the scaling of production wells and maintain the injection and production capability. The optimum well spacing makes the best economic benefits.

並列關鍵字

Determine strata combination ； strong base ASP flooding ； the mechanism of ASP flooding ； the optimization of injection parameters ； the optimization of injection pattern