动态测井资料在大孔道识别上的应用

Application of Dynamic Logging Data in the Identification of High Capacity Channel

大庆油田老区以开采中高渗透层为主,经过几十年的注水开发,局部呈现注入水低效、无效循环,出现大孔道特征。分析大孔道地层在测井曲线上所表现出的一些特征,据此制定入井、产出井中的识别大孔道地层的测井方案并加以验证。

Medium and high permeability zones are dominant in the old areas of Daqing Oilfield. With the development of water-flooding, bad injection results, invalid injected water circulation and high capacity channels occurred locally. In the paper, the characteristics of the zones with high capacity channels at the logging curves are analyzed. The logging projects for identifying the zones with high capacity channels in injection wells and production wells are established and the feasibility of the projects is addressed by the existing examples.