微裂缝性特低渗透油藏产量递减方程及其应用  

Production decline equation and its application in micro-fractured ultra-low permeability reservoirs

作　　者：黄冬梅 杨正明[2] 郝明强[3] 张英芝[4] 

机构地区：[1]中海石油中国有限公司湛江分公司技术部,广东湛江524057 [2]中国科学院渗流流体力学研究所,河北廊坊065007 [3]中国石油勘探开发研究院,北京100083 [4]中国石油股份大庆油田有限责任公司偷树林油田开发有限责任公司,黑龙江大庆151100

出　　处：《油气地质与采收率》2008年第1期90-91,100,共3页Petroleum Geology and Recovery Efficiency

基　　金：中国石油天然气股份公司重点科技攻关项目“特低渗透储层评价方法、标准及渗流机理研究”(06-02A-02-01)

摘　　要：裂缝系统对于低渗透油藏的经济开发极其重要,微裂缝性特低渗透油藏产量递减规律一直是特低渗透油藏开发生产中的重点问题。以相对渗透率曲线的研究为基础,利用低渗透油藏渗流理论,推导了微裂缝性特低渗透油藏的产量递减方程。分析发现此类油藏产量递减符合指数递减规律,递减指数受多种因素控制,且无水采油期和低含水期是特低渗透油藏开发的重要阶段。研究表明,大庆油区榆树林特低渗透油田东16井区中,无论是单井还是整个区块,其产量递减都符合指数递减。Fracture system is very important for the economic development of the low permeability oil reservoir.The production decline law in the micro-fractured ultra-low permeability reservoirs is always the key in reservoir development.Based on the research of relative permeability curve and flow theory in the low permeability oil reservoir,the production decline equations were set up in the micro-fractured ultra-low permeability reservoir.The research probed that the production decline in this type of oil reservoir matches the rule of exponential decline.And many factors influences the declined index.Water-free oil production phase and low water-cut phase are the important stages of the development of ultra-low permeability reservoirs.In the production of Dong-16 well block in Yushulin ultra-low permeability oilfield,the production variation conformed to exponential decline,not only for single well but also for the whole block.

关 键 词：微裂缝 特低渗透 产量递减 产量 产能 榆树林油田 

分 类 号：TE319[石油与天然气工程—油气田开发工程]