Research on the Key Technologies of Liner Top Packer for HT/HP and High Acidic Oil and Gas Wells
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摘要: 针对尾管顶部封隔器在高温高压高酸性油气井环境中易腐蚀失效导致环空带压等问题，开展了封隔器耐温、耐压、耐腐蚀关键技术研究。根据尾管顶部封隔器各部件的特点及高温高压高酸性油气井对其性能的需求，进行了合理的选材，采用浸泡试验、应力腐蚀试验和电化学测试等方法评价了主要金属材料的均匀腐蚀、点蚀、应力腐蚀开裂性能及电偶腐蚀风险；测试了所选橡胶材料的耐温、耐压和耐腐蚀性能。试验发现，镍基合金718具有良好的抗均匀腐蚀、点蚀和应力腐蚀开裂的性能，可作为封隔器的主要金属材料；13Cr不锈钢和低合金钢与镍基合金718偶接使用时电偶腐蚀速率较小，可以作为主要的辅助材料；改性的四丙氟橡胶材料在150℃、H2S分压3.5 MPa、CO2分压3.0 MPa环境下腐蚀96 h后力学性能保持率均在90%以上，用其加工的封隔器胶筒在高酸性腐蚀环境下具有良好的气密封性能。采用上述材料制备的尾管顶部封隔器在元坝10-3井进行了现场试验，结果显示该封隔器性能可靠，表明选材合理。研究认为，改进后的尾管顶部封隔器是解决高温高压高酸性油气井环空带压等问题的有效手段。Abstract: The key technologies for the HT/HP and high corrosion resistance of the top packer liner have been studied pertinent to the problems of corrosion failure and even Sustained Casing Pressure (SCP) under the environment of HT/HP and high acidic oil and gas wells.According to the characteristics of each component of top packer liner and the performance requirements of such wells,a reasonable material selection was carried out,and the uniform corrosion,pitting,stress corrosion cracking and galvanic corrosion risks of the main metal materials were evaluated by immersion test,stress corrosion test and electrochemical test.Later,tests for temperature resistance,pressure resistance and corrosion resistance of selected rubber materials were conducted.The study found that 718 nickel-based alloy has good resistances to uniform corrosion,pitting and stress corrosion cracking,can be used as the main metal material of the packer.Further,13Cr stainless steel and low alloy steel have a low galvanic corrosion rate while contacting with 718 nickel-based alloy,and they can be used as the main auxiliary material.The modified tetra propylene rubber material presents a mechanical performance retention rate of 90% or higher after placing into corrosive environments for 96h at temperature of 150℃,H2S partial pressure of 3.5 MPa,CO2 partial pressure of 3.0 MPa.The packer element processed with such rubber has good tight gas performance in highly corrosive acidic environments.The top packer liner manufactured with the above materials was tested in Well Yuanba 10-3.The test results show that such top packer liner is reliable,indicating the practical materials selection.This research suggests that the modified top packer liner is an effective means for solving the problems of SCP and similar problems existing in HT/HP and high acidic oil and gas wells.
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Keywords:
- high temperature /
- high pressure /
- packer /
- CO2 corrosion /
- H2S corrosion /
- metal /
- rubber
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[1] 魏浩光,桑来玉,杨红歧,等.雅达油田高含硫小井眼尾管固井技术[J].石油钻采工艺,2014,36(4):47-49. WEI Haoguang,SANG Laiyu,YANG Hongqi,et al.Liner cementing technology for slim hole well with high sulfur content in Yadavaran Oilfield[J].Oil Drilling Production Technology,2014,36(4):47-49. [2] 侯立中.伊朗雅达油田优快钻井技术[J].石油钻采工艺,2014,36(4):13-17. HOU Lizhong.Optimized fast drilling technology for Yadavaran Oilfield of Iran[J].Oil Drilling Production Technology,2014,36(4):13-17. [3] 赵金洲.我国高含H2S/CO2气藏安全高效钻采的关键问题[J].天然气工业,2007,27(2):141-144. ZHAO Jinzhou.Key points on drilling and production safely with high efficiency in high H2S and CO2 gas reservoirs in China[J].Natural Gas Industry,2007,27(2):141-144. [4] 丁士东,周仕明,陈雷.川东北地区高温高压高含硫气井配套固井技术[J].天然气工业,2009,29(2):58-60. DING Shidong,ZHOU Shiming,CHEN Lei.Cementing technology for "three highs" gas wells in Northeast Sichuan Basin[J].Natural Gas Industry,2009,29(2):58-60. [5] 陈文,张强,金洪,等.川东北气矿井下管柱腐蚀评价及缓蚀剂防腐研究[J].石油与天然气化工,2012,41(2):196-199. CHEN Wen,ZHANG Qiang,JIN Hong,et al.Evaluation of downhole tube corrosion and research on corrosion inhibitor in Northeastern Sichuan gas district[J].Chemical Engineering of Oil Gas,2012,41(2):196-199. [6] 孔凡群,张庆生,魏鲲鹏,等.普光高酸性气田完井管柱设计[J].天然气工业,2011,31(9):76-78. KONG Fanqun,ZHANG Qingsheng,WEI Kunpeng,et al.Well completion string design and tubular goods selection:a case study in the Puguang Sour Gas Field[J].Natural Gas Industry,2011,31(9):76-78. [7] 张星,李兆敏,徐林静,等.含硫化氢油气井完井工艺技术现状与发展趋势[J].特种油气藏,2010,17(1):12-14,19. ZHANG Xing,LI Zhaomin,XU Linjing,et al.Present status and development trend of completion technique for H2S-bearing oil and gas well[J].Special Oil Gas Reservoirs,2010,17(1):12-14,19. [8] 董锎云,陈军,杜龙飞,等.元坝超深高含硫气藏水平井完井管柱优化[J].重庆科技学院(自然科学版),2015,17(4):40-44. DONG Kaiyun,CHEN Jun,DU Longfei,et al.An optimal design of completion string for YB ultra-deep and high sulfur content horizontal gas wells[J].Journal of Chongqing University of Science and Technology(Natural Sciences Edition),2015,17(4):40-44. [9] 姚席斌,熊昕东.元坝高含硫气藏超深水平井完井技术研究及实践[J].钻采工艺,2012,35(2):32-34. YAO Xibin,XIONG Xindong.Research and practice of ultra-deep horizontal well completion technology in high sulfur gas reservoir of Yuanba[J].Drilling Production Technology,2012,35(2):32-34. [10] 吴姬昊,秦金立,张金法,等.耐腐蚀特种尾管固井工具的设计与应用[J].石油钻探技术,2011,39(1):29-31. WU Jihao,QIN Jinli,ZHANG Jinfa,et al.Design and application of corrosion resistant special liner cementing tool[J].Petroleum Drilling Techniques,2011,39(1):29-31. [11] BRONDEL D,EDWARDS R,HAYMAN A,et al.Corrosion in the oil industry[J].Oilfield Review,1994,6(2):4-18.
[12] 耿春雷,顾军,徐永模,等.油气田中CO2/H2S腐蚀与防护技术的研究进展[J].材料导报,2011,25(1):119-122. GENG Chunlei,GU Jun,XU Yongmo,et al.Research progress on CO2/H2S corrosion and protection technique in oil and gas fields[J].Materials Review,2011,25(1):119-122. [13] 张文禹,Martin Hoch.硫化氢对氢化丁腈橡胶性能的影响[J].世界橡胶工业,2015,42(1):7-11. ZHANG Wenyu,MARTIN Hoch.Effect of H2S on the properties of HNBR[J].World Rubber Industry,2015,42(1):7-11. [14] 李远,陈平,张志广,等.硫化氢腐蚀丁腈橡胶的机理[J].合成橡胶工业,2014,37(1):38-41. LI Yuan,CHEN Ping,ZHANG Zhiguang,et al.Corrosion mechanism of nitrile rubber in hydrogen sulfide[J].China Synthetic Rubber Industry,2014,37(1):38-41. [15] ANSI/NACE MR0175/ISO 15156-3-2015 Petroleum,petrochemical,and natural gas industries:materials for use in H2S-containing environments in oil and gas production:part 1:general principles for selection of cracking-resistant materials[S].
[16] ANSI/NACE Standard TM 0177-2016 Standard test method:laboratory testing of metals for resistance to sulfide stress cracking and stress corrosion cracking in H2S environments[S].
[17] 陈兴伟,吴建华,王佳,等.电偶腐蚀影响因素研究进展[J].腐蚀科学与防护技术,2010,22(4):363-366. CHEN Xingwei,WU Jianhua,WANG Jia,et al.Progress in research on factors influencing galvanic corrosion behavior[J].Corrosion Science and Protection Technologyy,2010,22(4):363-366. -
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