吐哈盆地致密砂岩微观孔隙结构评价方法研究  

Study on Evaluation Method of Microscopic Pore Structure of Tight Sandstone in Tuha Basin:A Case from J_1b of Kekeya Area

作　　者：万永清[1] 

机构地区：[1]中国石油吐哈油田公司勘探开发研究院,新疆哈密839009

出　　处：《吐哈油气》2011年第2期101-105,共5页Tuha Oil & Gas

摘　　要：在研究吐哈盆地柯柯亚地区致密砂岩孔渗数据和压汞曲线特征参数的基础上,提出利用最大进汞梯度峰值,结合起始排驱压力和岩心孔隙度等参数,作为评价致密砂岩孔隙结构的重要指标,建立了一套适合吐哈盆地致密砂岩孔隙结构的新方法和思路,取得了较好的评价效果。Based on the study of porosity and permeability data and mercury-injection curve characteristic parameter of tight sandstone in Kekeya area, an important index for evaluating pore structure of tight gas sandstone is presented by using maximum peak value of mercury injection gradient, initial expulsion pressure and core porosity. A set of new method and thinking suitable for tight-gas-sandstone pore structure in Tuha basin is established and good evaluation effects have been taken.

关 键 词：吐哈盆地 致密砂岩 孔隙结构 最大进汞梯度峰值 

分 类 号：TE311[石油与天然气工程—油气田开发工程]