The Development and Properties of an Environmentally Friendly Metal Friction Reducer for Coiled Tubing
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摘要: 针对水平井长水平段连续油管作业过程中的锁定问题,采用改性植物油、表面活性剂、乙二醇作为核心主剂,制备了水包油型环保金属减摩剂。考察了该金属减摩剂在不同加量、矿化度、pH值和温度条件下对N80、P110、Cr-13钢块摩擦系数(CoF)的影响规律,同时采用MTT实验和动物实验评价了金属减阻剂的环保性能。结果表明,金属减摩剂加量为0.5%时,减摩效果最明显,使N80钢块的CoF降低至0.12(清水对应的CoF为0.42),CoF降低率达到71.4%;使P110钢块的CoF降低至0.16(清水对应的CoF为0.475),CoF降低率达到66.3%;使Cr-13钢块的CoF降低至0.115(清水对应的CoF为0.75),CoF降低率达到84.7%。金属减摩剂耐温达到140℃,适用pH值范围为1~10,耐矿化度达到30 000 mg/L。金属减摩剂细胞增殖率在95%~150%之间,半致死浓度LC50约为55 000 mg/L,无细胞毒性和动物毒性。研制的环保型金属减摩剂具有优异的减摩性能,满足连续油管现场作业要求。Abstract: An environmentally friendly oil in water (O/W) metal friction reducer has been developed to address the locking problem encountered in coiled tubing operation in a horizontal well with long horizontal sections. The metal friction reducer was made from several core reactants such as a modified vegetable oil, a surfactant and ethylene glycol. Laboratory experiment was conducted to study the effect of the friction reducer on the coefficient of friction (CoF) of N80, P110 and Cr-13 steels at different concentrations, salinities, pH values and temperatures. The effect of the friction reducer on the environment was also studied through MTT experiment and animal test. It was found that at concentration of 0.5%, the friction reducer performed at its best. At this concentration of the friction reducer, the CoF of N80 steel was reduced from 0.42 (tested with water and N80 steel) to 0.12, or a percent reduction in CoF of 71.4%, the CoF of P110 steel was reduced from 0.475 (tested with water and P110 steel) to 0.16, or a percent reduction in CoF of 66.3%, the CoF of Cr-13 steel was reduced from 0.75 (tested with water and Cr-13 steel) to 0.115, or a percent reduction in CoF of 84.7%. The metal friction reducer can be used at 140 ℃, in a pH range of 1-10, and can tolerate salinity up to 30,000 mg/L. The metal friction reducer has cell proliferation rate between 95% and 150%, and LC50 of about 55,000 mg/L, indicating that the it has no toxicity to cells and animals. The metal friction reducer has excellent friction reduction performance and can satisfy the needs of field coiled tubing operation.
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[1] 鄢捷年. 钻井液工艺学[M]. 山东:中国石油大学出版社, 2005:53-57. YAN Jienian. Drilling fluid technology[M].Shandong:China University of Petroleum Press, 2005:53-57. [2] 王西江, 于培志, 刘四海. 固体乳化润滑剂的研制[J]. 钻井液与完井液, 2010, 27(2):16-19.WANG Xijiang, YU Peizhi, LIU Sihai. The synthesis of a solid emulsion lubricant fluid[J].Drilling Fluid & Completion Fluid, 2010, 27(2):16-19. [3] ZHOU Fengshan, WANG Tingting, XIONG Zhengqiang, et al.The preparation and performances of self-dispersed nanomicron emulsified wax solid lubricant ewax for drilling fluids[J]. J Spectro, 2014(1):1-7. [4] ZHANG Yihe, MENG Xianghai, ZHOU Fengshan, et al. Utilization of recycled chemical residues from sodium hydrosulfite production in solid lubricant for drilling fluids[J].Desalination and Water Treatment,2016,57(4):1804-1813. [5] 王琳, 董晓强, 杨小华, 等. 高密度钻井液用润滑剂SMJH-1的研制及性能评价[J]. 钻井液与完井液, 2016, 33(1):28-32.WANG Lin, DONG Xiaoqiang, YANG Xiaohua, et al. Development and evaluation of a high density drilling fluid lubricant[J].Drilling Fluid & Completion Fluid, 2016, 33(1):28-32. [6] 肖稳发,罗春芝.改性聚合多元醇水基润滑剂的研究[J]. 钻采工艺, 2005, 28(4):87-89.XIAO Wenfa, LUO Chunzhi.Study on a water-based lubricant of polysiloxane polyglycol block xopolymer[J]. Drilling & Production Technology, 2005, 28(4):87-89. [7] KANIA D, YUNUS R, OMAR R, et al.A review of biolubricants in drilling fluids:recent research, performance and applications[J].J Pet Sci Eng, 2015, 135:177-184. [8] DENISE G N, ANDREIAD P M D S, JOAO C, et al. Influence of glycerides-xanthan gum synergy on their performance as lubricants for water-based drilling fluids[J].J Appl Polym, 2014, 131(22):1-9. [9] 李广环, 龙涛, 田增艳, 等. 利用废弃动植物油脂合成钻井液用润滑剂的研究与应用[J]. 油田化学, 2014, 31(4):488-491.LI Guanghuan, LONG Tao, TIAN Zengyan, et al. Research and application of new lubricant synthesized by waste animal/plant oil for drilling fluid[J].Oilfield Chemistry, 2014, 31(4):488-491. [10] LI Wai, ZHAO Xionghu, PENG Hui, et al.A novel environmentally friendly lubricant for water-based drilling fluids as a new application of biodiesel[R].SPE 180565-MS, 2016:1-15. [11] 解洪祥, 王绪美, 赵福祥, 等. 钻井液用泥饼黏附润滑剂BH-MAL的研究[J]. 钻井液与完井液, 2014, 31(5):22-24.XIE Hongxiang, WANG Xumei, ZHAO Fuxiang, et al. Study on the adhesive lubricant BH-MAL of mud cake for drilling fluid[J].Drilling Fluid & Completion Fluid, 2014, 31(5):22-24. [12] 王越之, 罗春芝, 刘霞, 等. 新型纳米乳液润滑剂NMR的研制[J]. 天然气工业, 2008, 28(12):48-50.WANG Yuezhi, LUO Chunzhi, LIU Xia, et al.Research and development on a new nanometer emulsion lubricant NMR[J].Natural Gas Industry, 2008, 28(12):48-50. [13] 夏小春, 胡进军, 孙强, 等. 环境友好型水基润滑剂GreenLube的研制与应用[J]. 油田化学, 2013, 30(4):491-495.XIA Xiaochun, HU Jinjun, SUN Qiang, et al. Development and application of environment-friendly water-based lubricant-GreenLube[J].Oilfield Chemistry, 2013, 30(4):491-495. [14] LIVESCU S, CRAIG S.Increasing lubricity of downhole fluids for coiled-tubing operations[C].SPE 168298-PA, 2015:396-404.
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