CO_2混相驱注采特征及开发效果初探——以苏北草舍油田为例  

CO_2 miscible flooding and production characteristics and preliminary discussion about the development effects——taking Caoshe oilfield in northern Jiangsu area as an example

作　　者：陈祖华[1] 俞凯[1] 刘伟[1] 焦里力[1] 岳珉[1] 

机构地区：[1]中国石油化工股份有限公司华东分公司,江苏南京210011

出　　处：《油气藏评价与开发》2011年第Z1期37-41,共5页Petroleum Reservoir Evaluation and Development

基　　金：国家"863"课题"CO2驱油的油藏工程设计技术研究"(2009AA063402)

摘　　要：阐述了苏北草舍油田泰州组油藏构造特征、储层特征及原油性质,从压力变化、剖面改善状况、原油性质、气油比变化状况以及生产能力变化等方面对该油藏注CO2后混相的判识做了初步的探讨,将油井见效类型分为平稳型、上升型、先升后降型三类,并定量地评价了CO2驱增油降水的效果。This paper described the tectonic characteristics,reservoir features and oil quality of the reservoir in Taizhou group in northern Jiangsu and made preliminary discussion about miscibility identification after CO2 flooding from the following aspects: pressure changes,profile recovery,oil quality changes,gas-oil ratio changes,production capacity changes and so on.This paper also divided the type of effective oil wells into the following three types: steady,ascending,and increase-decrease,and quantitatively evaluated the effects of oil increase and water decrease by CO2 flooding.

关 键 词：草舍油田 CO2混相驱 注采特征 效果 

分 类 号：TE357.45[石油与天然气工程—油气田开发工程]