| 高温水泥浆降失水剂DRF-120L的制备及评价 |
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| 引用本文： | 于永金,刘硕琼,刘丽雯,靳建洲,袁进平,齐奉忠. 高温水泥浆降失水剂DRF-120L的制备及评价[J]. 石油钻采工艺, 2011, 33(3): 24-27 |
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| 作者姓名： | 于永金 刘硕琼 刘丽雯 靳建洲 袁进平 齐奉忠 |
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| 作者单位： | 1.中国石油集团钻井工程技术研究院，北京 100195 |
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| 基金项目： | 国家科技重大专项子课题“深井高温泥浆及高温高压固井等配套工艺技术”(编号:2008ZX05021-004)部分研究内容 |
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| 摘 要： | 目前国内使用的合成聚合物类降失水剂普遍存在抗高温、抗盐能力差的问题，为解决这一问题，从分子结构入手，优选出性能优异的聚合单体，采用水溶液自由基共聚合法制备了抗高温、抗盐降失水剂DRF-120L。DRF-120L分子主链上引入了磺酸基及双羧基等多种官能团，提高了降失水剂对水泥粒子的吸附能力，从而提高了降失水剂在高温下控制水泥浆失水的能力。分别考察了引发剂加量、反应温度及单体浓度等因素对降失水剂性能的影响，确定了聚合反应的最佳合成条件，制备出了抗温达到200 ℃的降失水剂DRF-120L。DRF-120L在高温下能将?水水泥浆及含盐水水泥浆API失水量控制在100 mL以内且对水泥石的强度发展无不良影响；以DRF-120L为主剂的常规密度水泥浆及高密度水泥浆均具有良好的综合性能，能够满足高温深井固井的需要。
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| 关 键 词： | 降失水剂 抗高温 抗盐 水泥浆性能 固井 |
| 收稿时间： | 2019-04-25 |
Preparation and evaluation of high temperature cement slurry loss reduction additive DRF-120L |
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| YU Yongjin,LIU Shuoqiong,LIU Liwen,JIN Jianzhou,YAUN Jinping,QI Fengzhong. Preparation and evaluation of high temperature cement slurry loss reduction additive DRF-120L[J]. Oil Drilling & Production Technology, 2011, 33(3): 24-27 |
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| Authors: | YU Yongjin LIU Shuoqiong LIU Liwen JIN Jianzhou YAUN Jinping QI Fengzhong |
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| Affiliation: | 1.CNPC Drilling Research Institute, Beijing 100195, China2.Zhejiang Oilfield Company, Petrochina, Hangzhou 310023, China |
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| Abstract: | The cement fluid loss reduction additives used in China generally have the deficiency of weak salinity tolerance and poor thermal stability.To solve this problem,considering molecular structure,excellent performance monomers were selected,and then the salt tolerant and thermostable fluid loss reduction additive DRF-120L was prepared according to free radical polymerization in aqueous solution.DRF-120L is a type of copolymer and its main chain contains sulfonic group and dicarboxyl groups,which improves the ... |
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| Keywords: | fluid loss reduction additive thermal stability salt tolerance cement slurry properties well cementing |
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