致密砂岩气藏多层压裂改造多层产能测试评价研究  

Study on Multilayered Test Capacity Evaluation for Multilayer Fracturing In Tight Sandstone Gas Reservoir

作　　者：周长静[1,2] 郝瑞芬[1,2] 肖元相[1,2] 高伟[1,2] 何明舫[1,2] 

机构地区：[1]长庆油田分公司油气工艺研究院,陕西西安710018 [2]低渗透油气田勘探开发国家工程实验室,陕西西安710018

出　　处：《油气井测试》2016年第2期1-5,75,共5页Well Testing

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目"致密气藏开发重大工程技术研究"(2010E-23)内容

摘　　要：鄂尔多斯盆地苏里格气田上古生界盒8、山1层为典型的致密砂岩储层,普遍具有低孔、低渗、低压、低丰度的特征,分压合采是实现该气田气井经济有效开发的关键技术手段。对多层压裂合层开采分层产能的影响因素进行敏感性分析,建立了一套基于生产动态资料的致密砂岩气藏直井多层压裂改造效果评价方法,分析了影响产能的主控因素。采用Stehfest数值反演算法,结合气井层间压力差异以及不同生产工作制度,评价多层合采的合理性及层间倒灌产生条件,为致密砂岩气藏直井多层压裂开发科学决策提供了依据。In the Upper Paleozoic 8th member of Shihezi Fm and 1 member of Shanxi Fm in the Sulige gas field,Ordos basin is a typical fractured tight sandstone reservoir with features of low porosity and permeability,low pressure and abundance,Multi-layer fracturing is the important mean of the economic and effective development of Sulige gas field. By analysis of the multi-layer fracturing and the influence factors of the sensitivity,evaluation method of the vertical multilayer fracturing effect is established based on production performance data of tight sandstone gas reservoir and the main factors to influence productivity is analyzed. Through using the Stehfest numerical inversion combined with the pressure difference of layer and different production system. the rationality and the cross flow conditions are evaluated which provides the basis for scientific decision of tight sandstone gas reservoir fracturing straight wells.

关 键 词：苏里格气田 多层合采 倒灌 压力 

分 类 号：TE353[石油与天然气工程—油气田开发工程]