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第 35 卷第 7 期                             精   细   化   工                                  Vol.35, No.7
             201 8 年 7 月                             FINE CHEMICALS                                 July  2018


              油田化学品与油田添加剂
                    一种大温差耐温耐盐缓凝剂的合成及性能评价



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                       张   健 ,彭志刚 ,黄仁果 ,杨朝阳 ,梁壬鑫 ,邹长军
                 (1.  西南石油大学  化学化工学院,四川  成都   610500;2.  川庆钻探有限责任公司  测井公司,四川  成
                 都  610051;3.  中国石油天然气股份有限公司  兰州化工研究中心,甘肃  兰州  730060; 4.中海油田服
                 务股份有限公司油田化学事业部塘沽作业公司,天津 300459)
                 摘要:以 2-丙烯酰胺基-2-甲基丙磺酸(AMPS)、丙烯酸(AA)、二烯丙基二甲基氯化铵(DMDAAC)为单体,
                 改性蒙脱土为活性填料合成了一种有机-无机复合型大温差缓凝剂(PMC-180)。利用 FTIR、XRD 和 TG 对产物
                 进行了结构表征,并对其应用性能进行了评价。结果表明:PMC-180 具有插层剥离复合结构,初始热解温度为
                 267.27 ℃。含 PMC-180 的水泥浆在 90~180 ℃耐温缓凝性能和抗盐性能良好,初始稠度低于 30 Bc,稠化时间可
                 调,曲线平稳无“鼓包”等异常现象;含 PMC-180 的 24 h 水泥石低温强度高于 14 MPa,满足长封固段固井要
                 求。PMC-180 的缓凝机理及大温差适应机理为:PMC-180 通过吸附屏蔽及络合抑制作用延缓 Ca(OH) 2 晶核、晶
                 体生长;PMC-180 片层间距随温变化及阴阳离子竞争吸附减缓低温过渡吸附,使 PMC-180 具有良好的大温差适
                 应性。
                 关键词:长封固段;大温差;耐温耐盐;蒙脱土;缓凝剂;油田化学品
                 中图分类号:TQ317;TQ172;TE256      文献标识码:A     文章编号:1003-5214 (2018) 07-1240-08



               Synthesis and Performance Evaluation of a Temperature Resistance and Salt
                     Tolerance Retarder for Large Temperature Difference Cementing


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                            ZHANG Jian , PENG Zhi-gang , HUANG Ren-guo , YANG Zhao-yang ,
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                                             LIANG Ren-xin ,ZOU Chang-jun
                 (1.  College of Chemistry and Chemical Engineering,  Southwest Petroleum University,  Chengdu 610500,  Sichuan, China;
                 2. Logging company,Chuanqing Drilling Engineering Co., Ltd., Chengdu 610500, Sichuan, China; 3. Lanzhou Petrochemical
                 Research  Center, PetroChina  Co., Ltd., Lanzhou  730060, Gansu,  China;  4.  Oilfield Chemicals Division, China Oilfield
                 Services Ltd., Tianjin 300459, China)
                 Abstract:  A  polymer/inorganic composite retarder (PMC-180) was prepared  by in-situ  intercalated
                 polymerization method  using 2-crylamido-2-methylpropanesulfonic acid  (AMPS), acrylic acid  (AA)  and
                 diallyl dimethyl ammonium chloride  (DMDAAC) as  monomers,  modified montmorillonite as active
                 polymerization filler. The as-prepared retarder was characterized by FTIR, XRD and TG. And its application
                 performance  was evaluated. The results  showed that  PMC-180  had an intercalation and exfoliation
                 composite structure with  an initial pyrolysis temperature of  267.27 ℃. The cement paste containing
                 PMC-180 exhibited good  retarding  property, salt tolerance and temperature resistance under  90~180 ℃.
                 The initial consistency  was lower than 30 Bc and the thickening time could  be  regulated effectively.
                 Furthermore, the thickening curves of  different kinds of cement paste were stable without abnormal
                 phenomenon such as bulging. The compressive strength of cement stone containing PMC-180 was greater
                 than 14 MPa  at low temperature, which could  be applied to long sealing  and large  temperature range
                 cementing operation. The retarding mechanism and temperature adaptation mechanism of PMC-180 were
                 as follows: when PMC-180 was adsorbed on the surface of cement particles, the hydration adsorption and
                                                          2+
                 complexation reaction between PMC-180  and  Ca  inhibited Ca(OH) 2 crystal nucleus or crystal growth.


                 收稿日期:2017-06-30;  定用日期:2017-10-12; DOI: 10.13550/j.jxhg.20170527
                 基金项目:国家“863”计划课题(2012AA091501-003)
                 作者简介:张   健(1990—),男,博士生。联系人:彭志刚(1976—),博导,教授,E-mail:401817890@qq.com。
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