摘要
我国西部K油藏为浅层稠油油藏,油层平均埋深240 m,属于边缘氧化型稠油油藏。针对K油藏开发过程中注入蒸汽波及的效率低,热连通不充分,油汽比低,经济效益差的现状,选择该油藏有代表性的井组,利用数值模拟方法,对该油藏连续汽驱、间歇汽驱、低干度汽驱等技术方案进行了深入的研究,综合经济因素和最终采收率确定了合理的开发方案为高注汽强度的间歇汽驱,注汽强度80~100 m3/d,注汽周期为6个月。数值模拟结果对油田实际开发有指导作用。
The K reservoir is a typical shallow heavy oil reservoir in west China with average depth of 240m and belonging to fringe oxygenation heavy oil reseavoir.Aimed at the low sweep efficiency of the injected steam,the deficient heat connect and the bad economic benefit in the producing process of K reservoir,a typical well group was chose for studying.With the application of reservoir numerical simulation,a detailed study is done on technique plans which could be applied in K reservoir such as steam flooding,intermittent steam flooding,low quality steam flooding and so on.Combine the economic factors with the final oil recovery efficiency of every plan's results,it is recognized that the reasonable plan is intermittent steam flooding.The reasonable steam injection rate is 80-100 m^3/d and the injection cycle is six months.Results of the numerical simulation should be consulted in the reservoir exploitation.
出处
《西南石油学院学报》
CSCD
北大核心
2005年第5期37-39,共3页
Journal of Southwest Petroleum Institute
基金
高等学校优秀青年教师教学科研奖励计划(TRAPOYT)项目
关键词
汽油比
数值模拟
蒸汽驱
历史拟合
steam oil ratio
numerical simulation
steam flooding
history matching
