作　　者： ; ; ;

机构地区： 西南石油大学

出　　处： 《油气井测试》 2009年第4期17-19,共3页

摘　　要： 针对低渗油气藏压力恢复缓慢、受井筒存储影响严重的早期试井资料,开展续流量反褶积的解释方法研究。利用Laplace数值变换算法及Laplace空间的反褶积方法,开发含井筒存储效应的直接反褶积数学方法,提出综合常规解释方法的反褶积途径。通过常规双对数分析,确定井筒存储系数进行反褶积,展现半对数径向流特征,减少早期资料解释多解性。 The interpretation method derived from afterflow rate deconvolution was developed to process the early time data of well test in low-permeability reservoirs,which used to be difficult to deal with because of some problems such as slow pressure build-up and serious interference of wellbore storage etc.Based on the numerical Laplace transform algorithm and deconvolution in Laplace space,the practical deconvolution mathematical method taking wellbore storage into account is developed,and the way of deconvolution processing for conventional well test interpretation is presented.The deconvolution processing taking wellbore storage coefficient obtained from conventional log-log analysis into account helps us to represent radial flow characteristic and to improve interpretation accuracy of the early data of well test.

关 键 词： 试井早期数据 反褶积 数值 变换

领　　域： [石油与天然气工程] [石油与天然气工程]