川东北地区钻井漏失及堵漏措施现状分析  

Current Situation Analysis of Circulation Lost and Measures in Northeast Sichuan Basin

作　　者：臧艳彬[1] 王瑞和[1] 张锐[1] 

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266555

出　　处：《石油钻探技术》2011年第2期60-64,共5页Petroleum Drilling Techniques

基　　金：国家安监总局项目"高含硫气井勘探开发安全关键技术研究"(编号:07-06B-01-04-02);中央高校基本科研业务专项资金"含硫气井钻完井事故诊断与评价方法研究"(编号:09CX04006A)联合资助

摘　　要：针对川东北地区钻井漏失频率高、处理措施效果不理想的现状,运用数理统计方法对钻井漏失及其处理措施进行了分析、评价。在对川东北地区钻井漏失层进行统计的基础上,依据漏失发生频率、孔道类型、严重程度、漏失特点以及堵漏现状,将川东北地区漏失层分为4个层段,各个层段及其特点分别是:飞仙关组,堵漏难度最大;嘉陵江组,漏失频率最高;须家河组—自流井组,"高孔低破"喷漏同层;蓬莱镇组—沙溪庙组,已得到较好解决。对川东北地区目前应用的堵漏措施进行了归纳总结,并结合各井漏处理措施的封堵机理和现场堵漏效果,总结了11种漏失处理措施的优缺点和适用范围,指出了目前该地区堵漏存在的主要问题并提出了对策。For the problem of high frequency of circulation lost and unsatisfactory treatment measures in Northeast Sichuan Basin,statistical mathematics is used to analyze and evaluate the circulation lost and treatment measures. Based on the statistical results, the circulation lost formation in Northeast Sichuan Basin were divided into 4 groups according to the frequency of lost circulation,pore throat type,severity,lost circulation characteristics, and well plugging. Each group has their own characteristics. Well plugging in Feixianguan is the hardest. The lost frequency in Jialingjiang is highest. Formation lost and well kick altogether is the key in Xujiahe-Ziliujing. Lost circulation in Penglaizhen-Shaximiao was already solved. The plugging measures used in Northeastern Sichuan Basin are summarized. Advantages, disadvantages and application of 11 treating measures were summarized based on plugging mechanism and field plugging resuits. The main problems and their measures for plugging in this area were pointed out.

关 键 词：井漏 堵漏 堵漏剂 川东北地区 

分 类 号：TE28[石油与天然气工程—油气井工程]