安岳气田高温酸性气藏完井技术
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摘要
安岳气田的龙王庙、灯影组等气藏具有埋藏深、高温、产量大、含H2S和CO2等酸性气体且地质条件复杂的特点,给完井作业的工具选材、井筒完整性、施工方案优化、完井液选择等带来了挑战。为确保开发井井筒完整性和长时间安全开采,设计合理完井管柱和工艺,优选材料,优化完井液以及井筒防腐措施,引入试油完井一体化开发理念,建立贯穿油气井整个服役周期的安全井筒屏障,形成高温酸性气藏完井技术,保证了油气井安全。该技术在安岳气田上百口开发井成功应用,累计测试产气量超过5 000×104m3/d,为保障西南油气田分公司打造百亿气区提供了强力技术保障。整套完井技术对"三高"井具有普遍的适用性。
The gas reservoirs such as Longwangmiao Formation and Dengying Formation in the Anyue gas field are characterized by complex geological conditions,deep burial,high temperature,high yield,and presence of sour gases such as H2 S and CO2,which bring challenges to the completion tool selection,wellbore integrity,optimization of operation scheme,and selection of completion fluid. In order to ensure the wellbore integrity and durable operation of development wells,a completion technology for high temperature sour gas reservoir was developed,including the reasonable design of completion pipe string and process,optimization of materials,completion fluid and wellbore anti-corrosion measures,introduction of the concept of integrated oil testing and completion,and establishment of a safe and effective wellbore barrier throughout the service life of wells. This technology has been successfully applied in hundreds of development wells in the Anyue gas field,with the cumulative test gas production exceeding 5 000×104 m3/d. Obviously,it provides a strong technical guarantee for building the Southwest Oil and Gas Field into a 10-billion-m3 level gas region. This completion technology is applicable to wells with high yield,high pressure and high content of H2 S.
The gas reservoirs such as Longwangmiao Formation and Dengying Formation in the Anyue gas field are characterized by complex geological conditions,deep burial,high temperature,high yield,and presence of sour gases such as H2 S and CO2,which bring challenges to the completion tool selection,wellbore integrity,optimization of operation scheme,and selection of completion fluid. In order to ensure the wellbore integrity and durable operation of development wells,a completion technology for high temperature sour gas reservoir was developed,including the reasonable design of completion pipe string and process,optimization of materials,completion fluid and wellbore anti-corrosion measures,introduction of the concept of integrated oil testing and completion,and establishment of a safe and effective wellbore barrier throughout the service life of wells. This technology has been successfully applied in hundreds of development wells in the Anyue gas field,with the cumulative test gas production exceeding 5 000×104 m3/d. Obviously,it provides a strong technical guarantee for building the Southwest Oil and Gas Field into a 10-billion-m3 level gas region. This completion technology is applicable to wells with high yield,high pressure and high content of H2 S.
引文
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[20]杨海涛,张军杰,李翔,等.顺南区块高温高压腐蚀机理及选材研究[J].钻采工艺,2016,39(2):47-49.YANG Haitao,ZHANG Junjie,LI Xiang,et al.Research on tubing corrosion mechanism and tubing material selection under HTHP in Shunnan Block[J].Drilling&Production Technology,2016,39(2):47-49.
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[23]徐茂荣,梁先贵,曾洪均.磨溪-高石梯构造APR测试联作管柱堵漏压井技术浅析[J].钻采工艺,2017,40(6):103-105.XU Maorong,LIANG Xiangui,ZENG Hongjun.Some discussion on well killing and plugging using APR testing string at Moxi-Gaoshiti Structure[J].Drilling&Production Technology,2017,40(6):103-105.
[24]刘东明,王瑞莲,胡嘉佩.暂堵工艺在川东地区低压井修井作业中的应用[J].钻采工艺,2013,36(5):122-124.LIU Dongming,WANG Ruilian,HU Jiapei.Application and temporary plugging technology in low-pressure gas well workover in Chuandong Basin[J].Drilling&Production Technology,2013,36(5):122-124.
[25]卢齐,林轶斌,赵益秋.永久式封隔器完井技术在龙王庙气藏开发井中的应用[J].钻采工艺,2016,39(2):39-42.LU Qi,LIN Yibin,ZHAO Yiqiu,et al.Application of permanent packer completion technology in Sichuan Longwangmiao Gas Reservior[J].Drilling&Production Technology,2016,39(2):39-42.
[26]温杰文,徐茂荣,宋军正.基于井筒完整性的试油完井一体化工艺技术[J].钻采工艺,2016,39(2):80-82.WEN Jiewen,XU Maorong,SONG Junzheng.Integrated operation technology of well testing and completion based on well integrity[J].Drilling&Production Technology,2016,39(2):80-82.
[2]李玉明.高含CO2和H2S井测试工艺技术应用[J].油气井测试,2017,26(5):51-52LI Yuming.Application of well test technology for well high content of CO2and H2S[J].Well Testing,2017,26(5):51-52.
[3]陈华良,张洋.塔中高含H2S凝析气井地面测试技术[J].油气井测试,2017,26(4):63-65,69CHEN Hualiang,ZHANG Yang.Surface testing technology of Tazhong condensate gas wells with high content of H2S[J].Well Testing,2017,26(4):63-65,69.
[4]张朝举,铁忠银,曹学军,等.元坝气田超深酸性气藏完井投产关键技术[J].天然气工业,2016,36(9):61-68.ZHANG Chaoju,TIE Zhongyin,CAO Xuejun,et al.Key technologies for well completion and commissioning of ultradeep sour gas reservoirs in the Yuanba gasfield,Sichuan Basin[J].Natural Gas Industry,2016,36(9):61-68.
[5]陶俊亦,龚浩,吴军.高产酸性气井环空安全评价分析[J].油气井测试,2016,25(6):19-22.TAO Junyi,GONG Hao,WU Jun.Evaluation and analysis of annular safety for high production acidic gas well[J].Well Testing,2016,25(6):19-22.
[6]李玉飞,佘朝毅,刘念念,等.龙王庙组气藏高温高压酸性大产量气井完井难点及其对策[J].天然气工业,2016,36(4):60-64.LI Yufei,SHE Chaoyi,LIU Niannian,et al.Completion difficulties of HPHT and high-flowrate sour gas wells in the Longwangmiao Fm gas reservoir,Sichuan Basin,and corresponding countermeasures[J].Natural Gas Industry,2016,36(4):60-64.
[7]刘猛,董本京,张友义.水平井分段完井技术及完井管柱方案[J].石油矿场机械,2011,40(1):28-32.LIU Meng,DONG Benjing,ZHANG Youyi.Segregated completion technology and completion string for horizontal well[J].Oil Field Equipment,2011,40(1):28-32.
[8]陈锋,陈华彬,唐凯,等.射孔冲击载荷对作业管柱的影响及对策[J].天然气工业,2010,30(5):61-65.CHEN Feng,CHEN Huabin,TANG Kai,et al.Influence of perforating impact load on the operating string and the countermeasures[J].Natural Gas Industry,2010,30(5):61-65.
[9]何生厚.普光高含H2S、CO2气田开发技术难题及对策[J].天然气工业,2008,28(4):82-85.HE Shenghou.Technical problems and countermeasures of developing the Puguang gas field with high H2S and CO2content[J].Natural Gas Industry,2008,28(4):82-85.
[10]冯星安,黄柏宗,高光第.对四川罗家寨气田高含CQ2、H2S腐蚀的分析及防腐设计初探[J].石油工程建设,2004,30(1):10-14.FENG Xing'an,HUANG Baizong,GAO Guangdi.Analysis of corrosion and primary anti-corrosion design for high contents of CO2and H2S in Luojiazhai Gas Field in Sichuan[J].Petroleum Engineering Construction,2004,30(1):10-14.
[11]潘登,徐茂荣,黄船,等.射孔-酸化-测试-封堵及完井一体化工艺技术[J].钻采工艺,2014,37(1):8-10.PAN Deng,XU Maorong,HUANG Chuan,et al.Integrated operation technology of perforation-acidizingtesting-plugging&completion[J].Drilling&Production Technology,2014,37(1):8-10.
[12]乔智国,高德利,戚斌,等.含硫气井酸压管柱受力及敏感性因素分析[J].钻采工艺,2017,40(5):59-62.QIAO Zhiguo,GAO Deli,QI Bin,et al.Loads on acid frac string used in sulfur-containing gas wells and analysis on sensitive factors[J].Drilling&Production Technology,2017,40(5):59-62.
[13]罗宇锋.抗高温高密度饱和盐水钻井液在川西地区的应用[J].钻采工艺,2017,40(5):98-101.LUO Yufeng.Application of high-temperature high-density saturated-brine drilling fluid system at West Sichuan[J].Drilling&Production Technology,2017,40(5):98-101.
[14]陈海力,邓淑芬,王琳,等.蜀南地区储层分段改造技术新进展及应用[J].钻采工艺,2015,38(5):52-54.CHEN Haili,DENG Shufen,WANG Lin,et al.Progress and application of staged fracturing techniques in Sichuan Shunan Gas Field[J].Drilling&Production Technology,2015,38(5):52-54.
[15]何龙.元坝气田钻井工程井筒完整性设计与管理[J].钻采工艺,2016,39(2):6-8.HE Long.Wellbore integrity design and management during the developing of Yuanba sour gas reservoir[J].Drilling&Production Technology,2016,39(2):6-8.
[16]张国红.低压气藏水平井完井复杂情况分析与处理[J].钻采工艺,2017,40(2):96-98.ZHANG Guohong.Complex problems during horizontal well completion and measures proposed[J].Drilling&Production Technology,2017,40(2):96-98.
[17]汪建国,夏天果,何思龙,等.碳酸盐岩超深水平井分段改造完井井眼准备技术[J].钻采工艺,2015,38(5):96-98.WANG Jianguo,XIA Tianguo,HE Silong,et al.Segmented transformation completion well preparation tecnology of ultra-deep horizontal[J].Drilling&Production Technology,2015,38(5):96-98.
[18]孙海芳,刘飞,王志敏.高温高压气井试油完井一体化工艺技术[J].钻采工艺,2017,40(4):36-39.SUN Haifang,LIU Fei,WANG Zhimin,et al.Integrated well testing-completion operation technology in HPHT gas wells[J].Drilling&Production Technology,2017,40(4):36-39.
[19]张本健,李旭成,王兴志,等.超高压气井试采工艺研究与应用---以川北地区ST1井为例[J].钻采工艺,2017,40(4):59-61,86.ZHANG Benjian,LI Xucheng,WANG Xingzhi,et al.Application of test production technology on superhighpressure gas wells---A case on Well ST1[J].Drilling&Production Technology,2017,40(4):59-61,86.
[20]杨海涛,张军杰,李翔,等.顺南区块高温高压腐蚀机理及选材研究[J].钻采工艺,2016,39(2):47-49.YANG Haitao,ZHANG Junjie,LI Xiang,et al.Research on tubing corrosion mechanism and tubing material selection under HTHP in Shunnan Block[J].Drilling&Production Technology,2016,39(2):47-49.
[21]肖潇,宋勇,李海,等.对黄龙009-H2井完井试油复杂情况的认识[J].钻采工艺,2017,40(4):62-64.XIAO Xiao,SONG Yong,LI Hai,et al.Some thinking about the completion and test production events on Well HL009-H2[J].Drilling&Production Technology,2017,40(4):62-64.
[22]相恒富,孙宝江,李鹏飞.智能完井技术标准探析[J].钻采工艺,2017,40(2):52-55.XIANG Hengfu,SUN Baojiang,LI Pengfei.Discussion on standards for intelligent well completion[J].Drilling&Production Technology,2017,40(2):52-55.
[23]徐茂荣,梁先贵,曾洪均.磨溪-高石梯构造APR测试联作管柱堵漏压井技术浅析[J].钻采工艺,2017,40(6):103-105.XU Maorong,LIANG Xiangui,ZENG Hongjun.Some discussion on well killing and plugging using APR testing string at Moxi-Gaoshiti Structure[J].Drilling&Production Technology,2017,40(6):103-105.
[24]刘东明,王瑞莲,胡嘉佩.暂堵工艺在川东地区低压井修井作业中的应用[J].钻采工艺,2013,36(5):122-124.LIU Dongming,WANG Ruilian,HU Jiapei.Application and temporary plugging technology in low-pressure gas well workover in Chuandong Basin[J].Drilling&Production Technology,2013,36(5):122-124.
[25]卢齐,林轶斌,赵益秋.永久式封隔器完井技术在龙王庙气藏开发井中的应用[J].钻采工艺,2016,39(2):39-42.LU Qi,LIN Yibin,ZHAO Yiqiu,et al.Application of permanent packer completion technology in Sichuan Longwangmiao Gas Reservior[J].Drilling&Production Technology,2016,39(2):39-42.
[26]温杰文,徐茂荣,宋军正.基于井筒完整性的试油完井一体化工艺技术[J].钻采工艺,2016,39(2):80-82.WEN Jiewen,XU Maorong,SONG Junzheng.Integrated operation technology of well testing and completion based on well integrity[J].Drilling&Production Technology,2016,39(2):80-82.