第43卷第3期
石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
单因素法分析钻井液处理剂对水泥浆性能的影响
李明王伟’郑友志”程小伟’代斌”郭小阳”
(1.油气藏地质及开发工程国家重点实验室（西南石油大学））
(2.中国石油西南油气田公司采气工程研究院）
(3.塔里木石油勘探开发指挥部第二勘探公司50051钻井队）
摘要钻井液与水泥浆相容性差，混浆后易产生接触污染，即混浆段流体出现流动性恶化、
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水泥浆稠化时间缩短、水泥环强度降低等问题。实践表明，钻井液处理剂是造成接触污染的主要原因之一。为此，采用单因素法考察了13种钻井液处理剂对水泥浆性能的影响规律，利用红外光谱对处理剂进行了结构表征，用环境扫描电子显微镜对污染后的水泥石结构进行微观形貌分析。结果表明，生物增黏剂、聚丙烯酰胺钾盐能使水泥浆急剧变稠;SMT、SMP-1、JN-A能够缩短水泥浆稠化时间,但加量在1%（w)以内影响较小；其余钻并液处理剂加量在一定范围内对水泥浆性能影响较小。生物增黏剂和聚丙烯酰胺钾盐参与水泥水化、影响水泥浆结构形成过程是造成污染的重要原因；同时，高聚物大分子链发生卷曲、吸附架桥和电中和作用使水泥浆产生絮凝现象。污染机理的提出为钻并液合理选材、钻井液性能调整、减少钻井液与水泥浆的污染提供了理论依据。
关键词钻井液水泥浆污染机理固井
中图分类号：TE256+.7文献标志码：ADOI：10.3969/j.issn.1007-3426.2014.03.017
Impactofdrillingfluid additivesonperformanceof
thecement slurryby single-factor
Li Ming,Wang Wei',Zheng Youzhi’,Cheng Xiaowei',Dai Bin,Guo Xiaoyang
(l.State Key Laboratory of Oil and Gas Reseruoir Geology and Exploration, Southwest
Petroleum University,Chengdu610500,Sichuan,China; 2.Gas Production Engineering Research Institute,Petrochina Southwest Oil&Gasfield CompanyGuanghan 618300,Sichuan,China: 3.Tarim Petroleum Exploration and Development Headquarte, Kuerl 841000, Xinjiang, China)
Abstract: The compatibility of drilling fluid and cement slurry is poor , and pollution will oc. curs as long as they contact , namely liquidity deterioration of mix slurry fluid , shortage of slurry thickening time and decrease of the cement ring strength . This paper studied the impact of drill. ing fluid additives used in Sichuan and Chongqing on the performance of the cement slurry by sin -gle-factor. The composition of additives was characterized by infrared spectroscopy , and the structure of cement stone was analyzed by environmental scanning electron microscope . The re-sults show that biological tackifier and polyacrylamide potassium ( KPAM) can make the slurry thicken quickly ;SMT, SMP-1 and JN-A will shorten the thickening time , while the effect is small within the dosage of less than 1% . The rest additives have less affect within a certain range. Then the pollution reason was analyzed . One of the important reasons is that some addi.
基金项目：国家重点基础研究发展计划(973计划)项目“页岩气水平并钻完井关键基础研究"(2013CB228003）。
作者简介：李明（1977-），男，博士，讲师，2011年获工学博士学位，现从事固井工程及水泥浆体系研究。地址：（610500）成都市新都区西南石油大学国重B104。电话：028-83035412。E-mail：swpulm@126.com