B样条反褶积方法在试井解释中的应用  

The Application of B-Spline Deconvolution in Well-Test Interpretation

作　　者：申颍浩[1] 何顺利[1] 张红玲[1] 田冷[1] 

机构地区：[1]中国石油大学(北京)石油天然气工程学院,北京102249

出　　处：《油气井测试》2011年第3期7-9,75,共3页Well Testing

基　　金：国家科技重大专项"大型油气田及煤层气开发"(2008ZX05043)资助

摘　　要：反褶积是试井分析中较为重要的一个方法,由于反褶积方法存在固有的数值稳定性问题,其相关的算法实用性一直不强。将B样条应用于反褶积算法之后,能够克服反褶积方法本身的数值稳定性问题,有效进行试井解释,获取更大的测试半径,有效识别边界特征,可以通过较短的测试时间获取较多的油藏信息,是目前试井解释方法的一种有效补充。Deconvolution is one of the most important methods in well-test interpretation.However few deconvolution methods are practically applicable because of the inherent numerical instability problem.With the B-splines utilized in the deconvolution,the B-splines deconvolution method can overcome the inherent numerical instability problem,making the well-test interpretation successfully.This method develops the advantages of deconvolution:larger investigation radius and more credible boundary identification.It can get as much information as possible in the limited test period which is a good complementary approach to the well-test interpretation methods.

关 键 词：反褶积 B样条 试井解释 测试半径 边界识别 

分 类 号：TE353[石油与天然气工程—油气田开发工程]