“退液指数”在自喷排采阶段的应用  

Application of Fracturing Fluid Flow-Back Exponent of Well in Natural Flowing Production Stage

作　　者：苏建华[1] 胡广文[1] 封猛 张俊明[1] 南鑫 丁心鲁 

机构地区：[1]西部钻探工程有限公司试油公司,新疆克拉玛依834000 [2]西部钻探工程有限公司,新疆克拉玛依834000

出　　处：《油气井测试》2016年第1期64-66,78,共3页Well Testing

基　　金：中石油新疆大庆重大科技专项项目"试油及储层改造关键技术研究"(2012E-34-14)内容

摘　　要：首次提出退液指数的定义、物理意义和功用,通过对吉木萨尔致密油井压裂后自喷过程中的应用,退液指数首先对异常节点可以进行控制,指导排采制度的更换;其次利用平均退液指数可以消除直井与水平井、改造规模、更换制度等因素的影响,使各井能处在同一个平台相互对比,评价压后效果,最终开展井间对比,达到评价压后效果及储层物性优劣的目的。通过实例验证,可推广应用到低渗储层压后自喷阶段分析。The definition,physical meaning and function of fracturing fluid flow-back exponent is given for first time. After application of it in natural flowing production stage in the dense oil wells in Jimsar after operation of fracture,the fracturing fluid flow-back exponent can control the abnormal points at first time to guide change of flowing production system. Secondly,by using the average value of fracturing fluid flow-back exponent,the influence of factors of vertical well or horizontal well,the scale of fracture,production system can be eliminated,which makes every well compared in one platform to evaluate the effect of fracture operation. Finally,the contrast between wells could be made in time to reach a goal of evaluating postfrac effect and reservoir physical property. Through field applications,it is verified of that could be spread to analysis of the final natural flowing production of the low permeability reservoir.

关 键 词：退液指数 自喷 制度更换 评价 低渗储层 

分 类 号：TE357[石油与天然气工程—油气田开发工程]