基于不稳定试井原理的随钻地层压力测试模型  

Mathematical model of the formation pressure testing while drilling based on non-stablized well testing

作　　者：杨决算[1] 高翔[1] 

机构地区：[1]大庆钻探工程公司钻井工程技术研究院,黑龙江大庆163413

出　　处：《大庆石油学院学报》2010年第2期81-84,共4页Journal of Daqing Petroleum Institute

基　　金：大庆油田有限责任公司重大项目(K118)

摘　　要：利用不稳定试井原理,建立随钻地层压力测试的理论模型,分析随钻地层压力测试器的工作原理及工艺流程,阐述不稳定试井分析在随钻地层压力测试中的应用;根据地层流量分析法(FRA),建立随钻地层压力测试的数学模型.结果表明:利用该模型,可以得到地层压力、地层流度和压缩系数,现场试验验证数学模型的准确性和计算方法的可行性,可以应用于压降和压力恢复的全过程.In this paper,we recommended the mechanics of the formation pressure testing while drilling,including the working mechanics and technological process.The application of non-stablized well testing in the formation pressure testing while drilling is detailed described.The mathematical model of the formation pressure testing while drilling is built.Then we can divide the formation pressure using the multiple element linear regression analysis,from which we can also divide two geologic parameters:mobility and compressibility.We verify the accuracy of the mathematical model and the viability of the calculating method,through the simulation test and field experiment.

关 键 词：地层流量分析 数学模型 地层压力 流度 不稳定试井 

分 类 号：TE271[石油与天然气工程—油气井工程]