石油钻采工艺Issue(5)：65-68,4.DOI:10.13639/j.odpt.2014.05.016
致密油藏水平井不稳定渗流压力分布
Unsteady seepage lfow pressure distribution in horizontal wells of tight oil reservoir
摘要
Abstract
Fluid seepage process in horizontal wells production of tight oil reservoir shows obvious non-Darcy lfow characteristics. Based on initiating pressure gradient and stress sensitivity, law of conservation of mass and pressure drop superimposition principle were used to infer the unsteady seepage lfow pressure distribution equation for horizontal wells in tight sandstone reservoirs. The characteriza-tion of the seepage lfow process of horizontal wells under different boundary conditions and the solution of relevant parameters can be obtained for this model by using mirror relfection theory, which is very practical. Meanwhile, the effect of initiating pressure gradient and stress sensitivity on lfuid seepage in reservoirs was analyzed, which resulted in pressure distribution in horizontal wells under different initiating pressure gradient and permeability coefifcient of deformation.关键词
致密油藏/水平井/不稳定渗流/压力分布规律Key words
tight oil reservoir/horizontal well/unsteady seepage lfow/regularities of pressure distribution分类
能源科技引用本文复制引用
刘立峰,冉启全,王欣,路军月,袁晓红,胡建新..致密油藏水平井不稳定渗流压力分布[J].石油钻采工艺,2014,(5):65-68,4.基金项目
国家863项目“致密砂岩油气藏数值模拟技术与软件”（编号2013AA064902）。 （）
