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形状记忆聚合物型温控膨胀堵漏剂的制备及应用

杨倩云,  王宝田,  杨华,  刘学明

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文章导航 > 钻井液与完井液  > 2021 >  38(2): 189-195
杨倩云, 王宝田, 杨华, 刘学明. 形状记忆聚合物型温控膨胀堵漏剂的制备及应用[J]. 钻井液与完井液, 2021, 38(2): 189-195. doi: 10.3969/j.issn.1001-5620.2021.02.010
引用本文: 杨倩云, 王宝田, 杨华, 刘学明. 形状记忆聚合物型温控膨胀堵漏剂的制备及应用[J]. 钻井液与完井液, 2021, 38(2): 189-195. doi: 10.3969/j.issn.1001-5620.2021.02.010
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YANG Qianyun, WANG Baotian, YANG Hua, LIU Xueming. Preparation and Application of a Temperature-Controlled Expanding LCM Made from Shape-Memory Polymer[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(2): 189-195. doi: 10.3969/j.issn.1001-5620.2021.02.010
Citation: YANG Qianyun, WANG Baotian, YANG Hua, LIU Xueming. Preparation and Application of a Temperature-Controlled Expanding LCM Made from Shape-Memory Polymer[J]. DRILLING FLUID & COMPLETION FLUID, 2021, 38(2): 189-195. doi: 10.3969/j.issn.1001-5620.2021.02.010
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形状记忆聚合物型温控膨胀堵漏剂的制备及应用

doi: 10.3969/j.issn.1001-5620.2021.02.010

  • 中石化胜利石油工程有限公司钻井液技术服务中心, 山东东营 257078

基金项目: 

中石化集团公司基金项目“温控型刚性膨胀堵漏技术的研究与应用”（JP17026）

详细信息
    作者简介:

    杨倩云,高级工程师,1978年生,现在主要从事钻井液技术研究工作。电话13854650307;E-mail:yangqy83.ossl@sinopec.com

  • 中图分类号: TE254.3

Preparation and Application of a Temperature-Controlled Expanding LCM Made from Shape-Memory Polymer

  • Drilling Fluid Technology Service Center of SINOPEC Shengli Petroleum Engineering Co., Ltd., Dongying, Shandong 257000

    摘要
  • 摘要: 针对裂缝性漏失地层，利用低聚物树脂单体与交联剂和增韧剂在催化剂作用下加热交联，制备温度触变模式的抗温承压形变聚合物膨胀堵漏剂SDP，以自适应漏失空间架桥堵塞。研制SDP系列聚合物板材常温抗压强度≥71.62 MPa，高温抗压强度≥17.21 MPa；在激活温度环境下，膨胀延迟时间为40.07～53.43 min，随着环境温度的升高，膨胀延迟时间降低。其不同粒径颗粒复配后可对裂缝膨胀架桥封堵，9%浓度的堵漏液承压能力≥9.5 MPa。将温控膨胀堵漏剂复配刚性和弹性颗粒、柔性纤维等材料在宁夏兴1井进行了应用，解决了延安组煤层裂缝性反复漏失问题，一次堵漏成功率100%，漏失量相比降低了77.67%。

     

    Abstract: An expandable polymer lost circulation material (LCM), SDP, was developed to deal with mud losses into fractured formations. SDP was made from oligomer resin monomer which reacts at high temperatures with a crosslinker and a toughener under the action of a catalyst. SDP is pressure bearable and its expansion is triggered by temperature. When entering into a loss channel, SDP makes itself adaptive to the space where it is and bridges the space, thereby stop mud losses. The SDP developed has compressive strength under ambient temperature of greater than 71.62 MPa, and compressive strength under high temperature of greater than 17.21 MPa. At temperatures triggering the expansion of SDP, the expansion lag time is 40.07-53.43 min. As temperature increases, the lag time becomes shorter accordingly. LCM made with SDP of different particle sizes can stop mud losses through expansion and bridging. The pressure bearing capacity of a 9% SDP LCM slurry is greater than 9.5 MPa, as laboratory experiment indicated. Application of an LCM slurry made by mixing SDP particles, rigid particles, elastic particles and flexible fibers on the well Xing-1 in Ningxia solved the repeated losses of mud into Yan'an formation, a fractured coal zone. The mud loss was 100% stopped at the first try, and the total volume of mud losses was reduced by 77.67%.

     

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  • 收稿日期:  2020-11-19

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