层内生气技术在徐集油田的应用  

Application of internal gas producing tecnology in the Xiji oil field

作　　者：易慧君[1] 吴德[1] 许院红[1] 马进玺[1] 魏列民[1] 

机构地区：[1]中原油田分公司采油六厂

出　　处：《内蒙古石油化工》2010年第15期86-88,共3页Inner Mongolia Petrochemical Industry

摘　　要：徐集油田是一个高温、高压、高矿化度、低渗透率的砂岩油藏,为了解决注水开发过程中存在的注水压力高、注水困难、水驱控制程度及水驱动用程度低的难题,采用了集水井降压增注和提高原油采收率于一体的层内生气技术,其技术核心是化学处理剂在预定的地层内发生化学反应,生成CO2气体。文中叙述了层内自生气技术的工艺原理、性能指标及在徐集油田的应用效果。The Xuji oilfield is sandstone oil reservoir.high temperature, high pressure,high salt content and high permiablity are characters of this oilfield. In order to solve the problem in the process of water injection,such as high water injection pressure and low water injection efficency.Method that united water well depressure and EOR is used,that is internal gas producing technology.The core of this technology is that the chemical agents react is in the layer lay off CO2 gas.The technology theory character and application result are report in this paper.

关 键 词：层内生气 降压增注 采收率 CO2 徐集油田 

分 类 号：TE343[石油与天然气工程—油气田开发工程]