第34卷第3期 2017年5月
钻井液与完并液
DRILLINGFLUID&COMPLETIONFLUID
doi:10.3969/j.issn.1001-5620.2017.03.007
Vol.34 No.3 May2017
控流管路中降滤失剂的合成与性能研究张群正，刘金磊，孙淑娟，周慧鑫，杨萌，白永强
（西安石油大学化学化工学院，西安710065）
张群正，刘金磊，孙淑娟，等，控流管路中降滤失剂的合成与性能研究[1].钻并液与完并液，2017，34（3：39-43 ZHANG Qunzheng, LIU Jinlei, SUN Shujuan,et al.Synthesis and evaluation of a filter loss reducer in flow-control line[J]
Drilling Fluid &CompletionFluid, 2017, 34(3) : 39-43
摘要针对高压喷射钻井时，传统阴离子降滤失剂不能克服水眼黏度的间题，以2-丙烯酰胺-2-甲基丙碳酸（AMPS）、丙烯酰胺（AM）和丙烯酸钾（AA）为原料，在控流管路中共聚得到钻并液降滤失剂AMPS/AM/AA，确定AM与AMPS， AA与AMPS之间的最优投料比为7：6：1，总单体浓度为17%。考察了共聚物在淡水钻井液、整水钻井液和他和盐水钻井液中的降滤失及流变性能。结果表明：在控流管路中合成的聚合物黏度低于同条件下签式反应中合成的，解决了传统阴离子降滤失剂使水眼黏度过高的问题；AMPS/AM/AA能使高矿化度水基钻井液的滤失量降低94%，在演水基浆、盐水基浆和饱和盐水基浆中，共聚物均表现出较强的降滤失性能和软颗的增黏性能；热稳定性分析及高温老化评价表明，AMPS/ AM/AA可抗330℃的高温，满足现场对高温钻并液的要求。
关键词聚合物；AMPS/AM/AA；降滤失剂；抗湿抗盐；流变性
中图分类号：TE254.4
文献标识码：A
文章编号：1001-5620（2017）03-0039-05
Synthesis and Evaluation ofa Filter LossReducer in Flow-control Line e
(College of Chemistry and Chemical Engineering,Xi'an Shiyou University, Xi'an, Shaanxi 710065)
Abstract In high pressure jet drilling, the viscosity of drilling fluid at bit nozzle has long been a problem associated with the use of anionic filter loss reducers. A new drilling fluid filter loss reducer has been developed through the copolymerization of 2-Acrylamido-2-methylpropane sulfonic acid (AMPS), acrylamide (AM) and potassium acrylate at an optimum ratio of7 : 6 : 1. The total concentration of these monomers was 17%. The filtration control performance and the rheology of the copolymer in fresh water drilling fluid, saltwater drilling fluid and saturated saltwater drilling fluid were studied. The studies showed that the viscosity of the copolymer synthesized in flow-control line was lower than the viscosity of the copolymer synthesized in three-necked flask under the same conditions, solving the problem of high viscosity at the bit nozzle caused by the conventional anionic filter loss reducers. The AMPS/AM/AA copolymer can reduce the filter loss of high salinity water base drilling fluids by 94%. It showed good filtration control and viscosifying performance in fresh water base fluid, saltwater base fluid and saturated saltwater base fluid. Thermal stability analysis and high temperature aging evaluation showed that the copolymer was able to retain its stability at 330 C, satisfying the needs for high temperature drilling fluids infieldoperation
Key words Polymer; AMPS/AM/AA; Filter loss reducer; High temperature resistant and salt resistant; Rheology
随着油气钻采向深部地层和海洋发展，对钻井液处理剂的要求也越发严格。为了满足复杂地层条件深井安全钻井的需要，对钻井液的流变性和滤失性提出了更高的要求。渤海钻探王磊磊等探索
了在AMPS基础上聚合了NVP和NIPAM,郑锟[2-] 等做了利用二烯丙基二甲基氯化铵和顺丁烯二酸接枝的尝试，胜利油田刘成贵围进行了在AMPS上加人了丙烯腈的聚合，改性后的产物在钻井液中表
基金项目：西安石油大学全日制颈士研究生创新基金资助“抑制型抗高温降滤失剂的合成与性能研究”（2015CX140734）；国家级大学生创新创业训练计划项目“多功能抗高温钻井液处理剂的合成研究”（201510705240）。
第一作者简介：张群正，1964年生，教授，工学博士。电话（029）88382702；E-mail：qzzhang@xsyu.edu.cn。万方数据