Development and evaluation of high-temperature loss circulation spacer fluid

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Abstract There are a lot of safety and engineering problems about loss and leakage during well cementation on deep layer and high-temperature district. To solve this, we developed a kind of high-temperature plugging spacer fluid that is of great rheological properties, highly stable and covering a wide range of density. To add rigid bridging materials and lignin fibre cooperating with deformable polymer micelles, efficient plugging on layer cracks has been achieved. A polymer plugging agent matched spacer fluid was synthesized through free radical aqueous solution copolymerization with the monomers of 2-acrylamido-2-methyl-propane sulphonic acid (AMPS) and acrylamide(AM). The structure of the polymer was identified by FTIR analysis. With the ratio of 1% lignin fiber+2% polymer+1% walnut shell which mesh number is 18, the plugging agent successfully made the loss circulation spacer fluid seal the crack under 5 MPa at least. It proves that density contrast between different depth is no more than 0.01 g·cm^-3 upon 160 ℃, and the sealing pressure reaches 5 MPa at least. The spacer has great stability under high temperature and rheological properties through comprehensive evaluation test. Its compatibility with cement slurry was identified ideally by tests of rheological properties, thickening time and fluid loss, showing that the spacer fluid will not influence cement slurry pumping and fluid loss ability and will not shorten cementitious time badly.

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	Articles by authors
	LU Feifei
	YI Hao
	XUE Zhaofeng
	GUO Jintang

Keywords： cementation spacer fluid plugging high-temperature

Received 2021-07-02;

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LU Feifei, YI Hao, XUE Zhaofeng, GUO Jintang.Development and evaluation of high-temperature loss circulation spacer fluid[J] Chemcial Industry and Engineering, 2022,V39(3): 73-79

[1] WANG B, SUN J, SHEN F, et al. Research on the rheological and flow characteristics of a supramolecular gel in fractures[J]. Journal of Applied Polymer Science, 2021, doi:10.1002/app.50823
[2] MA C, DENG J, WU R, et al. A novel self-healing spacer fluid for sustained casing pressure mitigation[J]. Journal of Petroleum Science and Engineering, 2018, 163: 722-730
[3] 袁会敏. 适于泥页岩地层的封堵性隔离液体系研究[D]. 山东东营: 中国石油大学(华东), 2014 YUAN Huimin. Study on sealing spacer fluid system suitable for shale formation[D]. Shandong Dongying: China University of Petroleum (Huadong), 2014 (in Chinese)
[4] 初永涛. MS型堵漏隔离液的研究与应用[J]. 石油钻探技术, 2013, 41(3): 89-93 CHU Yongtao. Research and application of MS spacer fluid for plugging[J]. Petroleum Drilling Techniques, 2013, 41(3): 89-93(in Chinese)
[5] 吴奇兵. 可固化堵漏工作液体系研究与应用[D]. 成都: 西南石油大学, 2012 WU Qibing. Study and application of solidifiable plugging operating fluid system[D]. Chengdu: Southwest Petroleum University, 2012 (in Chinese)
[6] LI H, WANG Y, QIAO L, et al. Preparation and performance evaluation of a hydrophobically associating polymer as a high-strength water-swelling temporary plugging material[J]. Chemistry and Technology of Fuels and Oils, 2020, 56(4): 707-717
[7] 杨红歧, 孙连环, 敖竹青, 等. 顺北油气田一区超深井三开长封固段固井技术[J]. 石油钻探技术, 2020, 48(6): 33-39 YANG Hongqi, SUN Lianhuan, AO Zhuqing, et al. Anti-leakage cementing technology for the long well section below technical casing of ultra-deep wells in the No.1 area of Shunbei oil and gas field[J]. Petroleum Drilling Techniques, 2020, 48(6): 33-39(in Chinese)
[8] ZHAO J, ZHANG J. Research and advances of silicate plugging agent in the oilfields[J]. Journal of Materials Science and Chemical Engineering, 2019, 7(9): 1-10
[9] 刘彦学. 龙凤山气田易漏地层低密度固井技术[J]. 中国石油和化工标准与质量, 2019, 39(14): 192-194 LIU Yanxue. Study on highly acid soluble fibrous lost circulation materials[J]. China Petroleum and Chemical Standard and Quality, 2019, 39(14): 192-194(in Chinese)
[10] 陈家旭, 李兆丰, 邱正松, 等. 高酸溶纤维堵漏剂的实验研究[J]. 钻井液与完井液, 2018, 35(5): 41-45 CHEN Jiaxu, LI Zhaofeng, QIU Zhengsong, et al. Study on highly acid soluble fibrous lost circulation materials[J]. Drilling Fluid & Completion Fluid, 2018, 35(5): 41-45(in Chinese)
[11] 王翀, 谢飞燕, 刘爱萍. 固井前置液室内评价方法探讨[J]. 钻井液与完井液, 2014, 31(4): 92-94, 102 WANG Chong, XIE Feiyan, LIU Aiping. Discussion on the evaluation of preflush fluid for well cementing[J]. Drilling Fluid & Completion Fluid, 2014, 31(4): 92-94, 102(in Chinese)
[12] 张明霞, 向兴金, 童志能, 等. 水泥浆前置液评价方法总论[J]. 钻采工艺, 2002, 25(6): 81-83 ZHANG Mingxia, XIANG Xingjin, TONG Zhineng, et al. General narration of the evaluation approach to the slurry’s prepad fluid[J]. Drilling & Production Technology, 2002, 25(6): 81-83(in Chinese)
[13] LONG Y, WANG Z, DING H, et al. Investigation and characterization of a robust nanocomposite preformed particle gel for enhanced oil recovery[J]. Energy & Fuels, 2019, 33(6): 5055-5066
[14] QI N, LI B, CHEN G, et al. Heat-generating expandable foamed gel used for water plugging in low-temperature oil reservoirs[J]. Energy & Fuels, 2018, 32(2): 1126-1131
[15] 陈显学. 低温易漏储气库固井技术的改进创新[J]. 化工管理, 2020(32): 187-188 CHEN Xianxue. Improvement and innovation of cementing technology for low temperature leakage gas storage [J]. Chemical Enterprise Management, 2020(32): 187-188(in Chinese)
[16] PLANK J, TIEMEYER C, BÜLICHEN D, et al. A review of synergistic and antagonistic effects between oilwell-cement additives[J]. SPE Drilling & Completion, 2013, 28(4): 398-404
[17] PLANK J, BRANDL A, LUMMER N R. Effect of different anchor groups on adsorption behavior and effectiveness of poly(N, N-dimethylacrylamide-co-Ca 2-acrylamido-2-methylpropanesulfonate) as cement fluid loss additive in presence of acetone-formaldehyde-sulfite dispersant[J]. Journal of Applied Polymer Science, 2007, 106(6): 3889-3894
[18] PLANK J, LUMMER N R, DUGONJIĆ-BILIĆ F. Competitive adsorption between an AMPS^®-based fluid loss polymer and Welan gum biopolymer in oil well cement[J]. Journal of Applied Polymer Science, 2010, 16(5): 2913-2919