处理剂对聚磺钻井液胶体稳定性影响  

Effect of Treating Chemical on Colloid Stability of Drilling Polysulfonate Fluid System

作　　者：卢俊锋 苏俊霖[1] 王亮 于海涛 黄进军[1] LU Junfeng;SU Junlin;WANG Liang;YU Haitao;HUANG Jinjun(College of Petroleum and Natural Gas Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, P R of China;Drilling Fluid Technology Service Company, Chuanqing Drilling Engineering Company Limited, PetroChina, Chengdu, Sichuan 610500, P R of China;Zhundong Drilling Company, Xibu Drilling Company, PetroChina , Karamay , Xinjiang 834000, P R of China)

机构地区：[1]西南石油大学石油与天然气工程学院,四川成都610500 [2]中国石油川庆钻探工程有限公司钻井液技术服务公司,四川成都610000 [3]中国石油西部钻探准东钻井公司,新疆克拉玛依834000

出　　处：《油田化学》2017年第4期571-575,共5页Oilfield Chemistry

基　　金：国家"十三五"科技重大专项"页岩气水平井水基钻井液"(项目编号2016ZX05022001-002);中石油重大应用基础研究"井筒工作液新材料新体系基础研究"(项目编号2016A-3903)

摘　　要：为实现废弃聚磺钻井液的高效处理,以配方3%膨润土+3%SMP-2(抗高温降滤失剂)+3%SMC(抗高温降滤失剂)+3%SPNH(降滤失剂)+0.3%FA-367(包被剂)+0.2%XY-27(降黏剂)+3%磺化沥青(抑制剂)的聚磺钻井液为基础,通过采用近红外扫描分散稳定性分析仪测试聚磺钻井液体系的分散稳定性、用稳定性动力学指数TSI值定量表征钻井液的胶体稳定性,研究了各类处理剂对聚磺钻井液胶体稳定性的影响。通过测定钻井液体系表观黏度与Zeta电位,分析了各类处理剂对钻井液胶体稳定性的影响机制。结果表明:各类处理剂均会影响聚磺钻井液体系的胶体稳定性;未加抑制剂的钻井液对应的TSI增加了88.5%,表观黏度降低了74%,Zeta电位绝对值降低了9.2%;未加两性离子类包被剂和降黏剂的钻井液对应的TSI减少了46.2%,表观黏度降低了51.9%,Zeta电位绝对值增加了16.1%;未加抗高温降滤失剂SMP-2和SMC的钻井液对应的TSI减少了42.3%,表观黏度增加了10.4%,Zeta电位绝对值减少了33.3%;未加降滤失剂SPNH的钻井液对应的TSI减少了19.2%,表观黏度减少了23.4%,Zeta电位绝对值减少了8%。磺化沥青类抑制剂主要通过改变表观黏度影响钻井液体系的胶体稳定性,包被剂、降黏剂、以及稀释剂主要通过改变Zeta电位影响体系的胶体稳定性,降滤失剂则通过同时改变黏度和Zeta电位影响钻井液体系的胶体稳定性。In order to treat waste polysulfonated drilling fluid efficiently,on the basis of polysulfonated drilling fluid,composed of 3% bentonite ＋ 3% SMP-2（high temperature resistance filtrate loss reducer）＋ 3% SMC（high temperature resistance filtrate loss reducer ）＋3% SPNH（filtrate loss reducer）＋0.3%FA-367（coating agent）＋0.2%XY-27（viscosity reducer）＋3% sulfonated asphalt （inhibitor）,the dispersion stability of polysulfonated drilling fluid system was measured by near infrared scanning dispersive stability analyzer,and the colloid stability of drilling fluid was quantitatively characterized by the value of turbiscan stability index（TSI） to study the effect of various treatment agents on the colloid stability of poly sulfonated drilling fluid. In addition,through the determination of apparent viscosity and Zeta potential of drilling fluid system, the influence mechanism of various treatment agents on the colloid stability of poly sulfonated drilling fluid was analyzed. The results showed that,the various treatment agents affected the stability of polysulfonated drilling fluid system. Compared to that of the complete system,the TSI of the system without inhibitor increased by 88.5%,the viscosity decreased by 74% and the absolute value of Zeta potential decreased by 9.2%;the TSI of system without amphoteric ion class coating agent and viscosity reducer decreased by 46.2%,viscosity decreased by 51.9% and the absolute value of Zeta potential increased by 16.1%;the TSI of system without high temperature resistance filtrate loss reducer SMP-2 and SMC decreased by 42.3%,viscosity increased by 10.4% and the absolute value of Zeta potential decreased by 33.3%; the TSI of system without filtrate loss reducer SPNH decreased by 19.2%,the viscosity decreased by 23.4% and the absolute value of Zeta potential decreased by 8%. It could be concluded that the sulfonated asphalt inhibitor affected the colloid stability of drilling fluid system by mainly changing viscosity,while the coating agent,visco

关 键 词：聚磺钻井液 胶体稳定 多重光散射 稳定指数 破胶 

分 类 号：TE992.2[石油与天然气工程—石油机械设备]