堵漏用高强度抗盐吸水树脂的性能评价  

Evaluation of Absorbent Polymer Used as LCM in Petroleum Drilling

作　　者：李娟[1] 刘文堂[1] 刘晓燕[1] 郭建华[1] 胡群爱[2] 

机构地区：[1]中石化中原石油勘探局钻井工程技术研究院,河南濮阳457001 [2]中石化中原石油勘探局钻井工程处,河南濮阳

出　　处：《钻井液与完井液》2012年第5期13-15,96,共3页Drilling Fluid & Completion Fluid

基　　金：中原石油勘探局博士后项目(2010320博)

摘　　要：采用丙烯酰胺、阳离子单体、抗温单体等制备了油田堵漏用吸水树脂,考察了该吸水树脂的吸水性能。采用VVDB-2000A型拉力试验机和CL-Ⅱ泥浆堵漏试验仪对吸水树脂的强度和形成封堵层的承压强度进行了评价。吸水实验结果表明,吸水树脂在纯水、饱和盐水和复合盐水中的吸水倍率分别为6.2、6.5和5.6 g/g,表明其具有较高的抗盐性,吸水饱和的时间为10 h,可满足现场堵漏浆的配制过程。可反应性实验结果表明,吸水树脂在一定的温度下可进一步反应,强度逐渐增大。实验室模拟堵漏实验结果表明,采用吸水树脂、基浆和骨架材料等配制的堵漏浆,可形成致密的封堵层,其封堵强度可达26 MPa,具有较高的承压强度。In this paper,the absorbent resin is synthesized by Acrylamide(AM),cationic monomer and high-temperature resistance monomer.The performances of water absorbency,strength of the polymer and the strength of sealing layer are evaluated by VVDB-2000A tensile testing machine and CL-mud plugging test instruments.The experimental results show that the water absorbency of the resin is 6.2 g/g in water,5.6 g/g in saturated salt water and composite salt solution,the resin can take further reaction under certain temperature,and the strength of sealing layer reaches up to 26 MPa.

关 键 词：吸水树脂 堵漏剂 吸水倍率 封堵强度 

分 类 号：TE282[石油与天然气工程—油气井工程]