中国石油大学学报（自然科学版）Issue(6)：106-112,7.DOI:10.3969/j.issn.1673-5005.2014.06.016
裂缝性气藏分支水平井试井模型及井底压力动态
Well testing model and pressure dynamics for multilateral horizontal wells in naturally fractured gas reservoirs
摘要
Abstract
A well testing model for multilateral horizontal wells in naturally fractured gas reservoirs was established based on the theory of fluid flow in porous media, and its analytical solution in Laplace domains was obtained. The characteristic curves for flows in commonly applied fishbone-type wells were plotted using a Stehfest numerical inversion algorithm. Nine different flow re-gimes can be identified and classified from the characteristic curves, including an early pure wellbore flow, a transitional flow, the first radial flow of the natural fracture system, a linear flow of the natural fracture system, the second pseudo-radial flow of the nat-ural fracture system, an interference flow between the multiple well branches, the third pseudo-radial flow of the natural fracture system, an inter-porosity flow and a compound pseudo-radial flow. A parametric analysis shows that the shorter the fishbone-type branches or the longer the interspacing, the longer the duration of the second pseudo-radial flow.关键词
裂缝性气藏/分支水平井/试井模型/压力动态/典型曲线Key words
naturally fractured gas reservoirs/multilateral horizontal wells/well testing model/pressure dynamics/charac-teristic curves分类
能源科技引用本文复制引用
郭晶晶,王海涛,张烈辉,刘启国,冯焱昀,李成全..裂缝性气藏分支水平井试井模型及井底压力动态[J].中国石油大学学报（自然科学版）,2014,(6):106-112,7.基金项目
国家自然科学基金项目(51304165) （51304165）
国家杰出青年科学基金项目(51125019) （51125019）
中央财政支持地方高校发展专项(YC311) （YC311）
