高温成胶可降解聚合物凝胶堵漏剂的研制与评价
|
摘要
以甲基丙烯酸酐对明胶进行季铵化改性,合成了一种可聚合改性明胶交联剂。基于热熔胶的热塑性,成功将引发剂包覆在热熔胶颗粒中,实现高温缓释引发。利用丙烯酰胺(AM)和自制交联剂(DGCL)为原料研发了抗高温可降解聚合物凝胶堵漏剂P(AM-DGCL)。利用核磁共振对自制交联剂进行了结构表征,并对凝胶的力学行为、封堵能力和破胶性能进行了测试。结果表明,P(AM-DGCL)凝胶堵漏剂成胶时间随热熔胶引发剂胶囊浓度的增大而缩短,随温度的增加,成胶时间逐渐减少,150℃高温下成胶时间在2～13 h可调;P(AM-DGCL)表现出优良的力学性能,断裂延伸率达1279%,拉伸强度为0.0425 MPa;由于起化学交联作用的交联剂DGCL本身具有可破胶性,在高温和破胶剂的作用下P(AM-DGCL)凝胶16 h破胶率达95%以上,保证了储层漏失封堵后的反排能力。
A polymerized modified gelatin crosslinking agent DGCL is developed through quaternization of gelatin with methacrylic anhydride. An initiator is successfully wrapped in ethylene vinyl acetate(EVA) particles based on the thermoplasticity of EVA to realize slow release of initiator at elevated temperatures. A high temperature degradable polymer gelling lost circulation material(LCM)P(AM-DGCL) was developed using acrylamide and a self-made crosslinking agent DGCL. The initiator DGCL was characterized with NMR and the mechanical behavior, plugging capacity and gel-breaking property of the gelling LCM tested. It was found that the gelation time of P(AM-DGCL) decreases with increase in the concentration of the initiator capsules and increase in temperature.The gelation time can be controlled within 2 – 13 h at temperature of 150 ℃. P(AM-DGCL) has excellent mechanical property; the percent elongation at break is 1,279% and the tensile strength is 0.0425 MPa. Since the crosslinking agent DGCL itself has gel-breaking property, the 16 h percent gel-breaking of P(AM-DGCL) is at least 95% at the action of high temperature and gel breaker, ensuring the flowback of a plugged reservoir because of lost circulation.
A polymerized modified gelatin crosslinking agent DGCL is developed through quaternization of gelatin with methacrylic anhydride. An initiator is successfully wrapped in ethylene vinyl acetate(EVA) particles based on the thermoplasticity of EVA to realize slow release of initiator at elevated temperatures. A high temperature degradable polymer gelling lost circulation material(LCM)P(AM-DGCL) was developed using acrylamide and a self-made crosslinking agent DGCL. The initiator DGCL was characterized with NMR and the mechanical behavior, plugging capacity and gel-breaking property of the gelling LCM tested. It was found that the gelation time of P(AM-DGCL) decreases with increase in the concentration of the initiator capsules and increase in temperature.The gelation time can be controlled within 2 – 13 h at temperature of 150 ℃. P(AM-DGCL) has excellent mechanical property; the percent elongation at break is 1,279% and the tensile strength is 0.0425 MPa. Since the crosslinking agent DGCL itself has gel-breaking property, the 16 h percent gel-breaking of P(AM-DGCL) is at least 95% at the action of high temperature and gel breaker, ensuring the flowback of a plugged reservoir because of lost circulation.
引文
[1]左文贵,朱林,吴兵良,等.聚合物凝胶堵漏剂在大裂隙溶洞地层中的研究及应用[J].探矿工程(岩土钻掘工程),2018,45(9):19-24.ZUO Wengui,ZHU Lin,WU Bingliang,et al.Polymer gel plugging agent used in formation with large size caverns and fractures[J].Exploration Engineering(Rock&Soil Drilling and Tinneling),2018,45(9):19-24.
[2]韩宇,余文萍.钻完井过程中漏失机理及堵漏技术研究进展[J].化工设计通讯,2018,44(6):247-248.HAN Yu,YU Wenping.Research progress on leakage mechanism and plugging technology during drilling and completion[J].Chemical Engineering Design Communications,2018,44(6):247-248.
[3]张绍营,刘智勤.南海西部深水井智能凝胶堵漏技术与实践[J].中国高新科技,2018,20(12):62-66.ZHANG Shaoying,LIU Zhiqin.Smart gel plugging technology and practice in deep water wells in the western South Sea of China[J].China High-tech,2018,20(12):62-66.
[4]彭振斌,张闯,李凤,等.聚乙烯醇凝胶堵漏剂的室内研究[J].天然气工业,2017,37(6):72-78.PENG Zhenbin,ZHANG Chuang,LI Feng,et al.Alaboratory study on a PVA gel plugging agent[J].Natural Gas Industry,2017,37(6):72-78.
[5]葛庆颖.新型凝胶堵漏剂的研制及其在修井液中的应用[D].中国石油大学(北京),2017.GE Qingyin.Development of a new gel plugging agent and its application in workover fluid[D].China University of Petroleum(Beijing),2017.
[6]宋元洪,杨蓉,庄建山,等.高分子凝胶堵漏剂的研究[J].钻井液与完井液,2016,33(5):92-97.SONG Yuanhong,YANG Rong,ZHUANG Jianshan,et al.Study on polymer gel lost circulation material[J].Drilling Fluid&Completion Fluid,2016,33(5):92-97.
[7]倪亚飞,黄友亮.化学堵漏剂在石油钻井防漏堵漏中的应用现状[J].化学工程师,2016,30(8):60-62.NI Yafei,HUANG Youliang.Application status of chemical plugging agent in leakage and plugging of oil drilling[J].Chemical engineer,2016,30(8):60-62.
[8]于澄.聚合物凝胶堵漏技术研究[D].中国地质大学(北京),2016.YU Cheng.Research on polymer gel plugging technology[D].China University of Geosciences(Beijing),2016.
[9]王先洲,夏景刚,左洪国,等.新型FM超级凝胶复合堵漏技术[J].钻井液与完井液,2015,32(6):50-53.WANG Xianzhou,XIA Jinggang,ZUO Hongguo,et al.New FM super gel composite plugging technology[J].Drilling Fluid&Completion Fluid,2015,32(6):50-53.
[10]吕开河,刘阳,乔伟刚,等.高强度预交联凝胶堵漏剂研究[J].油田化学,2011,28(4):359-362.LYU Kaihe,LIU Yang,QIAO Weigang,et al.Study on high strength pre-crosslinked gel plugging agent[J].Oilfield chemistry,2011,28(4):359-362.
[11]王中华.聚合物凝胶堵漏剂的研究与应用进展[J].精细与专用化学品,2011,19(4):16-20.WANG Zhonghua.Progress in research and application of polymer gel plugging agents[J].Fine and Specialty Chemicals,2011,19(4):16-20.
[12]鲁红升,张太亮,黄志宇.一种新型堵漏凝胶DNG的研究[J].钻井液与完井液,2010,27(3):33-35.LU Hongsheng,ZHANG Tailiang,HUANG Zhiyu.Study on a new type of plugging gel DNG[J].Drilling Fluid&Completion Fluid,2010,27(3):33-35.
[13]李旭东,郭建华,王依建,等.凝胶承压堵漏技术在普光地区的应用[J].钻井液与完井液,2008,25(1):53-56.LI Xudong,GUO Jianhua,WANG Yijian,et al.Application of gel pressure-bearing plugging technology in Puguang area[J].Drilling Fluid&Completion Fluid,2008,25(1):53-56.
[14]张新民,聂勋勇,王平全,等.特种凝胶在钻井堵漏中的应用[J].钻井液与完井液,2007,24(5):83-84.ZHANG Xinmin,NIE Xunyong,WANG Pingquan,et al.Application of special gel in drilling plugging[J].Drilling Fluid&Completion Fluid,2007,24(5):83-84.
[15]冯素敏,罗向东,马光长,等.新型抗高压堵漏剂的研究与评价[J].钻井液与完井液,2007,24(4):24-27.FENG Sumin,LUO Xiangdong,MA Guangchang,et al.Research and evaluation of new anti-high pressure plugging agent[J].Drilling Fluid&Completion Fluid,2007,24(4):24-27.
[16]聂勋勇,王平全,张新民.聚合物凝胶堵漏技术研究进展[J].钻井液与完井液,2007,24(1):82-84.NIE Xunyong,WANG Pingquan,ZHANG Xinmin.Research progress in polymer gel plugging technology[J].Drilling Fluid&Completion Fluid,2007,24(1):82-84.
[17]罗兴树,蒲晓林,黄岩,等.堵漏型聚合物凝胶材料研究与评价[J].钻井液与完井液,2006,23(2):28-32.LUO Xingshu,PU Xiaolin,HUANG Yan,et al.Research and evaluation of plugging polymer gel materials[J].Drilling Fluid&Completion Fluid,2006,23(2):28-32.
[18]金衍,陈勉,刘晓明,等.塔中奥陶系碳酸盐岩地层漏失压力统计分析[J].石油钻采工艺,2007,29(5):82-84.JIN Yan,CHEN Mian,LIU Xiaoming,etal.Statisticanalysis of leakage pressure of ordovician carbonate formation in middle Tarim basin[J].Oil Drilling&Production Technology,2007,29(5):82-84.
[19]潘军,李大奇.顺北油田二叠系火成岩防漏堵漏技术[J].钻井液与完井液,2018,35(3):42-47.PAN Jun,LI Daqi.Technology of preventing and controlling mud losses into the permian igneous rocks in Shunbei oilfield[J].Drilling Fluid&Completion Fluid,2018,35(3):42-47.
[20]LARRY E F,DWYANN DALRYMPLE,REDDY BR.Development of ahydrophob ically mod ified watersoluble polym eras a selective bullhead system for w aterproduction problems[J].SPE 80206,2003.
[21]张雪飞,张伟,徐新纽,等.准噶尔盆地南缘H101井高密度油基钻井液技术[J].石油钻探技术,2016,44(1):34-38.ZHANG Xuefei,ZHANG Wei,XU Xinniu,et al.Highdensity oil-based drilling fluid deployed in well h101inthe southern margin of the Junggar Basin[J].Petroleum Drilling Techniques,2016,44(1):34-38.
[2]韩宇,余文萍.钻完井过程中漏失机理及堵漏技术研究进展[J].化工设计通讯,2018,44(6):247-248.HAN Yu,YU Wenping.Research progress on leakage mechanism and plugging technology during drilling and completion[J].Chemical Engineering Design Communications,2018,44(6):247-248.
[3]张绍营,刘智勤.南海西部深水井智能凝胶堵漏技术与实践[J].中国高新科技,2018,20(12):62-66.ZHANG Shaoying,LIU Zhiqin.Smart gel plugging technology and practice in deep water wells in the western South Sea of China[J].China High-tech,2018,20(12):62-66.
[4]彭振斌,张闯,李凤,等.聚乙烯醇凝胶堵漏剂的室内研究[J].天然气工业,2017,37(6):72-78.PENG Zhenbin,ZHANG Chuang,LI Feng,et al.Alaboratory study on a PVA gel plugging agent[J].Natural Gas Industry,2017,37(6):72-78.
[5]葛庆颖.新型凝胶堵漏剂的研制及其在修井液中的应用[D].中国石油大学(北京),2017.GE Qingyin.Development of a new gel plugging agent and its application in workover fluid[D].China University of Petroleum(Beijing),2017.
[6]宋元洪,杨蓉,庄建山,等.高分子凝胶堵漏剂的研究[J].钻井液与完井液,2016,33(5):92-97.SONG Yuanhong,YANG Rong,ZHUANG Jianshan,et al.Study on polymer gel lost circulation material[J].Drilling Fluid&Completion Fluid,2016,33(5):92-97.
[7]倪亚飞,黄友亮.化学堵漏剂在石油钻井防漏堵漏中的应用现状[J].化学工程师,2016,30(8):60-62.NI Yafei,HUANG Youliang.Application status of chemical plugging agent in leakage and plugging of oil drilling[J].Chemical engineer,2016,30(8):60-62.
[8]于澄.聚合物凝胶堵漏技术研究[D].中国地质大学(北京),2016.YU Cheng.Research on polymer gel plugging technology[D].China University of Geosciences(Beijing),2016.
[9]王先洲,夏景刚,左洪国,等.新型FM超级凝胶复合堵漏技术[J].钻井液与完井液,2015,32(6):50-53.WANG Xianzhou,XIA Jinggang,ZUO Hongguo,et al.New FM super gel composite plugging technology[J].Drilling Fluid&Completion Fluid,2015,32(6):50-53.
[10]吕开河,刘阳,乔伟刚,等.高强度预交联凝胶堵漏剂研究[J].油田化学,2011,28(4):359-362.LYU Kaihe,LIU Yang,QIAO Weigang,et al.Study on high strength pre-crosslinked gel plugging agent[J].Oilfield chemistry,2011,28(4):359-362.
[11]王中华.聚合物凝胶堵漏剂的研究与应用进展[J].精细与专用化学品,2011,19(4):16-20.WANG Zhonghua.Progress in research and application of polymer gel plugging agents[J].Fine and Specialty Chemicals,2011,19(4):16-20.
[12]鲁红升,张太亮,黄志宇.一种新型堵漏凝胶DNG的研究[J].钻井液与完井液,2010,27(3):33-35.LU Hongsheng,ZHANG Tailiang,HUANG Zhiyu.Study on a new type of plugging gel DNG[J].Drilling Fluid&Completion Fluid,2010,27(3):33-35.
[13]李旭东,郭建华,王依建,等.凝胶承压堵漏技术在普光地区的应用[J].钻井液与完井液,2008,25(1):53-56.LI Xudong,GUO Jianhua,WANG Yijian,et al.Application of gel pressure-bearing plugging technology in Puguang area[J].Drilling Fluid&Completion Fluid,2008,25(1):53-56.
[14]张新民,聂勋勇,王平全,等.特种凝胶在钻井堵漏中的应用[J].钻井液与完井液,2007,24(5):83-84.ZHANG Xinmin,NIE Xunyong,WANG Pingquan,et al.Application of special gel in drilling plugging[J].Drilling Fluid&Completion Fluid,2007,24(5):83-84.
[15]冯素敏,罗向东,马光长,等.新型抗高压堵漏剂的研究与评价[J].钻井液与完井液,2007,24(4):24-27.FENG Sumin,LUO Xiangdong,MA Guangchang,et al.Research and evaluation of new anti-high pressure plugging agent[J].Drilling Fluid&Completion Fluid,2007,24(4):24-27.
[16]聂勋勇,王平全,张新民.聚合物凝胶堵漏技术研究进展[J].钻井液与完井液,2007,24(1):82-84.NIE Xunyong,WANG Pingquan,ZHANG Xinmin.Research progress in polymer gel plugging technology[J].Drilling Fluid&Completion Fluid,2007,24(1):82-84.
[17]罗兴树,蒲晓林,黄岩,等.堵漏型聚合物凝胶材料研究与评价[J].钻井液与完井液,2006,23(2):28-32.LUO Xingshu,PU Xiaolin,HUANG Yan,et al.Research and evaluation of plugging polymer gel materials[J].Drilling Fluid&Completion Fluid,2006,23(2):28-32.
[18]金衍,陈勉,刘晓明,等.塔中奥陶系碳酸盐岩地层漏失压力统计分析[J].石油钻采工艺,2007,29(5):82-84.JIN Yan,CHEN Mian,LIU Xiaoming,etal.Statisticanalysis of leakage pressure of ordovician carbonate formation in middle Tarim basin[J].Oil Drilling&Production Technology,2007,29(5):82-84.
[19]潘军,李大奇.顺北油田二叠系火成岩防漏堵漏技术[J].钻井液与完井液,2018,35(3):42-47.PAN Jun,LI Daqi.Technology of preventing and controlling mud losses into the permian igneous rocks in Shunbei oilfield[J].Drilling Fluid&Completion Fluid,2018,35(3):42-47.
[20]LARRY E F,DWYANN DALRYMPLE,REDDY BR.Development of ahydrophob ically mod ified watersoluble polym eras a selective bullhead system for w aterproduction problems[J].SPE 80206,2003.
[21]张雪飞,张伟,徐新纽,等.准噶尔盆地南缘H101井高密度油基钻井液技术[J].石油钻探技术,2016,44(1):34-38.ZHANG Xuefei,ZHANG Wei,XU Xinniu,et al.Highdensity oil-based drilling fluid deployed in well h101inthe southern margin of the Junggar Basin[J].Petroleum Drilling Techniques,2016,44(1):34-38.