候选油藏注气开发适宜度的模糊综合评价方法  

FUZZY COMPREHENSIVE EVALUATION METHOD OF GAS-INJECTION DEVELOPMENT SUITABILITY FOR ALTERNATE OIL RESERVOIR

作　　者：郑云川[1] 佘军[2] 熊钰[3] 孙雷[3] 赵立强[3] 

机构地区：[1]西南石油学院 [2]中油西南油气田分公司勘探开发研究院 [3]西南石油学院石油工程学院

出　　处：《天然气勘探与开发》2004年第2期42-46,19,共6页Natural Gas Exploration and Development

基　　金："油气藏地质及开发工程"国家重点实验室.西南石油学院基金项目 (PLN0 1 1 8)

摘　　要：在注气提高采收率项目实施之前 ,对油藏进行注气适宜度评价可提高注气的成功率和经济效益。通过对注气机理和影响注气效果因素的分析和研究 ,建立了评价指标体系 ,给出了这些指标的量化方法。在采用模糊层次分析法求得了同一油藏各评价参数权重的基础上 ,建立了适用于某一具体油藏进行注气适宜度评价的模糊综合评判模型。实例证明 ,该方法可在注气工程启动之前 ,对油藏进行正确的注气适宜度评价 ,以提高注气工程的成功率。Before executing the project of enhancing recovery efficiency by gas injection, evaluating the gas-injection suitability for oil reservoir can improve gas-injection success ratio and its economic profit. Through analysis and research on gas-injection mechanism and on factors affecting gas-injection effect, the evaluation index system is established, and the method of quantifying these indices provided. On the basis of various evaluation parameter weight of the same oil reservoir, obtained by using the fuzzy succession analysis, the fuzzy comprehensive judgement model applicable to a certain concrete reservoir to proceed gas injection suitability evaluation is established. It has been certified by examples that before starting the gas-injection engineering, this method may be used to proceed a correct gas-injection suitability evaluation, so that the success ratio of gas-injection engineering may be enhanced.

关 键 词：油藏 注气开发工艺 采收率 EOR 渗透率 压力 孔隙度 

分 类 号：TE357[石油与天然气工程—油气田开发工程]