涪陵页岩气田三维水平井井眼轨迹控制技术
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摘要
为满足地理环境条件和页岩气高效开发需要,涪陵页岩气田采用"井工厂"模式开发,多采用中、长半径三维水平井。针对原井眼轨道设计不利于三维水平井优快定向钻井、三维井眼轨迹控制难度大、三维井眼摩阻扭矩大等技术难点,通过优化设计,应用三维水平井井眼轨迹控制、三维井眼降摩减阻等技术,以提高三维水平井机械钻速,缩短定向钻井周期。现场应用表明,涪陵页岩气田三维水平井二开定向周期缩短46.36%,三开定向周期缩短5.76%,成效显著。
In order to accommodate the realities of the geographical environment and goals of developing shale gas in a highly efficient way,the Fuling Shale Gas Field has adopted the"well factory"mode that includes drilling 3Dhorizontal wells with both medium and long.The original profile design was not appropriate for drilling horizontal wells efficiently,and it is difficult to control 3D well trajectory,due to high drag and torque.Through the optimization of the profile design,combined with 3Dhorizontal well trajectory control technology and drag reducing technology,the rate of penetration for 3Dhorizontal wells has been raised,and the drilling cycle shortened.Field application results demonstrate that this technology is remarkably efficient in the Fuling Shale Gas Field,where it reduces the operation time of the second section of 3Dhorizontal wells by 46.36% and that of the third section by 5.76%.
In order to accommodate the realities of the geographical environment and goals of developing shale gas in a highly efficient way,the Fuling Shale Gas Field has adopted the"well factory"mode that includes drilling 3Dhorizontal wells with both medium and long.The original profile design was not appropriate for drilling horizontal wells efficiently,and it is difficult to control 3D well trajectory,due to high drag and torque.Through the optimization of the profile design,combined with 3Dhorizontal well trajectory control technology and drag reducing technology,the rate of penetration for 3Dhorizontal wells has been raised,and the drilling cycle shortened.Field application results demonstrate that this technology is remarkably efficient in the Fuling Shale Gas Field,where it reduces the operation time of the second section of 3Dhorizontal wells by 46.36% and that of the third section by 5.76%.
引文
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[9]刘匡晓,刘明国,沈国兵.云2-平3井MWD GAMMA地质导向钻井技术[J].钻采工艺,2007,30(6):35-38.LIU Kuangxiao,LIU Mingguo,SHEN Guobing.MWD GAM-MA geosteering drilling technology in Well Yun2-Ping3[J].Drilling&Production Technology,2007,30(6):35-38.
[10]明瑞卿,张时中,王海涛,等.国内外水力振荡器的研究现状及展望[J].石油钻探技术,2015,43(5):116-122.MING Ruiqing,ZHANG Shizhong,WANG Haitao,et al.Research status and prospect of hydraulic oscillator worldwide[J].Petroleum Drilling Techniques,2015,43(5):116-122.
[11]艾军,张金成,臧艳彬,等.涪陵页岩气田钻井关键技术[J].石油钻探技术,2014,42(5):9-15.AI Jun,ZHANG Jincheng,ZANG Yanbin,et al.The key drilling technologies in Fuling Shale Gas Field[J].Petroleum Drilling Techniques,2014,42(5):9-15.
[2]曾义金.页岩气开发的地质与工程一体化技术[J].石油钻探技术,2014,42(1):1-6.ZENG Yijin.Integration technology of geology&engineering for shale gas development[J].Petroleum Drilling Techniques,2014,42(1):1-6.
[3]周贤海.涪陵焦石坝区块页岩气水平井钻井完井技术[J].石油钻探技术,2013,41(5):26-30.ZHOU Xianhai.Drilling&completion techniques used in shale gas horizontal wells in Jiaoshiba Block of Fuling Area[J].Petroleum Drilling Techniques,2013,41(5):26-30.
[4]张金成,孙连忠,王甲昌,等.“井工厂”技术在我国非常规油气开发的应用[J].石油钻探技术,2014,42(1):20-23.ZHANG Jincheng,SUN Lianzhong,WANG Jiachang,et al.Application of multi-well pad in unconventional oil and gas development in China[J].Petroleum Drilling Techniques,2014,42(1):20-23.
[5]王万庆,石仲元,付仟骞.G0-7三维水平井井组工厂化钻井工艺[J].石油钻采工艺,2015,37(2):27-31.WANG Wanqing,SHI Zhongyuan,FU Qianqian.Factory drilling technology for G0-7 3Dhorizontal well group[J].Oil Drilling&Production Technology,2015,37(2):27-31.
[6]贺志刚,付建红,施太和,等.大位移井摩阻扭矩力学模型[J].天然气工业,2001,21(5):52-54.HE Zhigang,FU Jianhong,SHI Taihe,et al.Mechanical model for calculating drag and torque in extended reach well[J].Natural Gas Industry,2001,21(5):52-54.
[7]张胜杰,汪旭伟.利用修正的三点定圆法计算单弯螺杆造斜率及其应用[J].内蒙古石油化工,2015,41(1):35-36.ZHANG Shengjie,WANG Xuwei.Using the method of circle corrected three point fixed to calculate the bend mud motor’s build and application[J].Inner Mongolia Petrochemical Industry,2015,41(1):35-36.
[8]柯宏发,何可,陈永光.运动目标的MGM(1,N)轨迹预测算法[J].武汉大学学报(信息科学版),2012,37(6):662-666.KE Hongfa,HE Ke,CHEN Yongguang.Trajectory prediction algorithm of moving object based on MGM(1,N)[J].Geomatics and Information Science of Wuhan University,2012,37(6):662-666.
[9]刘匡晓,刘明国,沈国兵.云2-平3井MWD GAMMA地质导向钻井技术[J].钻采工艺,2007,30(6):35-38.LIU Kuangxiao,LIU Mingguo,SHEN Guobing.MWD GAM-MA geosteering drilling technology in Well Yun2-Ping3[J].Drilling&Production Technology,2007,30(6):35-38.
[10]明瑞卿,张时中,王海涛,等.国内外水力振荡器的研究现状及展望[J].石油钻探技术,2015,43(5):116-122.MING Ruiqing,ZHANG Shizhong,WANG Haitao,et al.Research status and prospect of hydraulic oscillator worldwide[J].Petroleum Drilling Techniques,2015,43(5):116-122.
[11]艾军,张金成,臧艳彬,等.涪陵页岩气田钻井关键技术[J].石油钻探技术,2014,42(5):9-15.AI Jun,ZHANG Jincheng,ZANG Yanbin,et al.The key drilling technologies in Fuling Shale Gas Field[J].Petroleum Drilling Techniques,2014,42(5):9-15.