一种提高注水泥质量的可固化工作液体系研究  

ONE KIND OF WORKING FLUID SYSTEM IMPROVING THE QUALITY OF CEMENT INJECTION

作　　者：张林海[1] 郭小阳[1] 李早元[2] 杨香艳[2] 

机构地区：[1]西南石油大学材料科学与工程学院 [2]"油气藏地质及开发工程"国家重点实验室.西南石油大学

出　　处：《西南石油大学学报（自然科学版）》2007年第S2期85-88,175,共5页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：针对钻井工程中碳酸盐裂缝性地层易发生因钻井液恶性漏失、封堵失效、水泥浆低返造成高含硫酸性气体环空窜流问题,采用进得去、堵得住、硬得起的研发原则和运用材料科学与工程中复合材料体系协调增效原理,开发出一种具有可控固化特性的新型工作液体系。该体系密度在1.3~2.1 g/cm3范围内可调,流动度为20~28 cm,24 h抗压强度为3~7 MPa,其既可以作为专门隔离液体系在固井作业中与水泥浆联合使用,又有望作为特种堵漏工作液进行专门作业,具有良好的工程应用前景。In order to solve the problems such as drilling fluid leakage and sealing failure resulting in slurry which may lead to the sulfur acid gases cross-flow when the drilling project encounters the fractured carbonate strata,the authors of this paper develop a new type of working fluid system with the principles of good rheology,higher intensity and chose advantages of the other materials.It is showed that for the working fluid,the density is 1.3～2.1 g/cm3,both the fluidity 20～28 cm and the compressive strength 3～7 MPa,it can be used both as spacer system together with the cement when cementing and as special work fluid that can effect on plugging,the working fluid has a good prospect of application.

关 键 词：钻井 材料 固井 堵漏 固化 工作液 

分 类 号：TE256[石油与天然气工程—油气井工程]