探边测试设计方法研究

Study on Method of Delineation Drilling Test Design

通过理论模拟分析非封闭(断层)、封闭、边水驱动油藏对压力恢复曲线的影响及边界反映特征,确定出探边测试的合理时机,要求流动期必须要达到拟稳态阶段,需要测试前期监测流压变化,判断油藏流动状态;提出基于生产动态分析的设计参数估计方法与测试模拟的探边测试设计方法,通过生产动态分析估计供给半径和确定测试时间,测试模拟评价测试工作制度的合理性与可靠性。

By theoretical analog analysis for influence of reservoir models with opened boundary(fault),closed boundary,and edge water drive on the effect of pressure buildup plot and characteristic of boundary response,delineation drilling test opportunity is found that flowing must enter into pseudo-steady state,and it's necessary to observe bottom-hole pressure before testing to diagnosing flowing state of reservoir.New method of reservoir limited test design is presented,which is from initial parameters estimation based on performance analysis and testing simulation,and drainage radius and testing time are estimated by performance analysis,and then the justifiability and reliability of test scheme will be evaluated by simulation.