端部脱砂压裂充填防砂设计及其在涩北气田的应用  

Systemic design for tip screen out frac-pack sand control and its application in Sebei Gasfield

作　　者：张启汉[1] 张士诚[1] 黄晓东 

机构地区：[1]中国石油大学石油天然气工程学院 [2]中国海洋石油QHD32-6/BZ25-1作业分公司,天津300450

出　　处：《中国石油大学学报（自然科学版）》2007年第6期55-59,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：'十五'中油股份有限公司重点攻关课题

摘　　要：介绍了端部脱砂压裂充填防砂机理,考虑压裂增产比和挡砂效果,研究了压裂充填防砂砾石尺寸的选择思路和方法。以实现端部脱砂从而产生短而宽的充填裂缝为目的,对脱砂时间、脱砂浓度、加砂时间、加砂浓度以及施工泵注程序等压裂防砂施工参数进行了优化设计。该套防砂工艺及设计方法在涩北气田应用13井次,防砂增产成功率为85%,防砂后产量平均增幅41.9%,防砂效果良好,达到了防砂与增产的目的。According to the basic mechanism of tip screen out （TSO） frac-pack sand control and considering the effect of well stimulation and sand control, the design optimization method for gravel size was developed. TSO is necessary for the creation of short and wide fracture for high permeable formation. In order to achieve TSO, a systemic design model was evolved, which involves sand-out time, sand-out concentration, sand-up time, sand-up concentration and corresponding pumping program, The model was applied to 13 wells in Sebei Gasfield and the results are very well with success percent of 85% and production rate increases 41, 9%.

关 键 词：端部脱砂 压裂防砂 砾石尺寸 涩北气田 优化设计 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]