涪陵江东区块三维水平井优快钻井技术——以焦页91平台为例
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摘要
涪陵二期建产区地质构造比一期更加复杂,目的层埋深更深,水平段倾角变化较大,这些客观因素造成钻井施工困难,钻井周期普遍延长。焦页91平台是部署在二期江东区块西南部的边缘井,地质条件复杂,钻井工程施工难度大。本文深入分析了该平台的第1口井焦页91-2HF井施工过程中遇到的复杂情况以及造成钻井周期长的主要原因,在后续2口井的施工过程中,针对第1口井出现的问题,采取改进堵漏措施,钻头、螺杆优选,优化井眼轨道,配套提速工具,提高钻井液性能,使用旋转导向工具等技术措施,精细施工,取得了良好的效果,钻头行程和机械钻速大幅提升,钻井周期大大缩短,为涪陵二期江东区块钻井施工提供了经验。
In the second-stage of Fuling gas field development,the geological structure is more complex than that in the first-stage,with the deep buried depth of the target layer and the varying dip angle over the horizontal section.These objective factors make drilling difficult and the drilling duration is generally extended.Jiaoye 91 platform is located in the southwest edge of Jiangdong Block,where the geological conditions are complex,and drilling is difficult.In this paper,the complex situation encountered in the drilling process of the first well JY91-2 HF in the platform is analyzed,and the main reasons for the long drilling duration are analyzed.During the construction of the following two wells,technical measures,such as improving leak plugging measures,optimizing bits and PDM,optimizing the borehole trajectory,matching downhole tools,improving drilling fluid performances and using rotary steering tools,were adopted.Fine construction has been carried out to solve the problems of the first well,and good results have been achieved.The bit run and ROP have been greatly improved,and the drilling duration has been greatly shortened,providing the construction experience for drilling in the area.
In the second-stage of Fuling gas field development,the geological structure is more complex than that in the first-stage,with the deep buried depth of the target layer and the varying dip angle over the horizontal section.These objective factors make drilling difficult and the drilling duration is generally extended.Jiaoye 91 platform is located in the southwest edge of Jiangdong Block,where the geological conditions are complex,and drilling is difficult.In this paper,the complex situation encountered in the drilling process of the first well JY91-2 HF in the platform is analyzed,and the main reasons for the long drilling duration are analyzed.During the construction of the following two wells,technical measures,such as improving leak plugging measures,optimizing bits and PDM,optimizing the borehole trajectory,matching downhole tools,improving drilling fluid performances and using rotary steering tools,were adopted.Fine construction has been carried out to solve the problems of the first well,and good results have been achieved.The bit run and ROP have been greatly improved,and the drilling duration has been greatly shortened,providing the construction experience for drilling in the area.
引文
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[12]潘军,刘卫东,张金成.涪陵页岩气田钻井工程技术进展与发展建议[J].石油钻探技术,2018,46(4):9-15.PAN Jun,LIU Weidong,ZHANG Jincheng.Drilling technology progress and recommendations for the Fuling shale gas field[J].Petroleum Drilling Techniques,2018,46(4):9-15.
[13]臧艳彬.川东南地区深层页岩气钻井关键技术[J].石油钻探技术,2018,46(3):7-12.ZANG Yanbin.Key drilling technology for deep shale gas reservoirs in the southeastern Sichuan region[J].Petroleum Drilling Techniques,2018,46(3):7-12.
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[15]王建华,刘杰,张进.页岩气开发钻完井技术探讨[J].探矿工程(岩土钻掘工程),2015,42(10):1-5.WANG Jianhua,LIU Jie,ZHANG Jin.Complete drilling and completion technology for shale gas development[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2015,42(10):1-5.
[2]王振兴,叶应贵,廖如刚,等.页岩气水平井快速地质导向技术研究[J].江汉石油职工大学学报,2017,30(2):1-4.WANG Zhenxing,YE Yinggui,LIAO Rugang,et al.Research on fast geosteering technology of shale gas horizontal wells[J].Journal of Jianghan Petroleum University of Staff and Workers,2017,30(2):1-4.
[3]陈星星.涪陵页岩气田防漏堵漏技术应用研究[J].探矿工程(岩土钻掘程),2015,42(3):11-14.CHEN Xingxing.Application research on lost circulation prevention and plugging in Fuling shale gas field[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2015,42(3):11-14.
[4]臧艳彬,白彬珍,李新芝,等.四川盆地及周缘页岩气水平井钻井面临的挑战与技术对策[J].探矿工程(岩土钻掘程),2014,41(5):20-24.ZANG Yanbin,BAI Binzhen,LI Xinzhi,et al.Challenges of shale gas horizontal well drilling in Sichuan Basin and its vicinity and the technical counter measures[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2014,41(5):20-24.
[5]陶现林,徐泓,张莲,等.涪陵页岩气水平井钻井提速技术[J].天然气技术与经济,2017,11(2):31-35.TAO Xianlin,XU Hong,ZHANG Lian,et al.ROP improvement technologies for shale gas horizontal wells in Fuling[J].Natural Gas Technology and Economy,2017,11(2):31-35.
[6]刘虎,段华,沈彬亮,等.焦石坝地区海相页岩气水平井优快钻井技术[J].西部探矿工程,2016,(6):59-61.LIU Hu,DUAN Hua,SHEN Binliang,et al.Optimum and fast drilling technology for marine shale gas horizontal wells in Jiaoshiba area[J].West-China Exploration Egineering,2016,(6):59-61.
[7]杨海平.涪陵平桥与江东区块页岩气水平井优快钻井技术[J].石油钻探技术,2018,46(3):13-19.YANG Haiping.Optimized and fast drilling technology for horizontal shale gas wells in Pingqiao and Jiangdong blocks of Fuling area[J].Petroleum Drilling Techniques,2018,46(3):13-19.
[8]龙志平,王彦祺,周玉仓,等.平桥南区页岩气水平井钻井优化设计[J].探矿工程(岩土钻掘工程),2017,44(12):34-37.LONG Zhiping,WANG Yanqi,ZHOU Yucang,et al.Drilling optimization design of shale gas horizontal well in south block of Pingqiao[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2017,44(12):34-37.
[9]陈平,刘阳,马天寿.页岩气“井工厂”钻井技术现状及展望[J].石油钻探技术,2014,42(3):1-7.CHEN Ping,LIU Yang,MA Tianshou.Status and prospect of multi well pad drilling technology in shale gas[J].Petroleum Drilling Techniques,2014,42(3):1-7.
[10]张金成.涪陵页岩气田水平井组优快钻井技术[J].探矿工程(岩土钻掘工程),2016,43(7):1-8.ZHANG Jincheng.Optimal and fast drilling technology for horizontal wells in Fuling shale gas field[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2016,43(7):1-8.
[11]沈国兵,刘明国,晁文学,等.涪陵页岩气田三维水平井井眼轨迹控制技术[J].石油钻探技术,2016,44(2):10-15.SHEN Guobing,LIU Mingguo,CHAO Wenxue,et al.3D trajectory control technology for horizontal wells in the Fuling shale gas field[J].Petroleum Drilling Techniques,2016,44(2):10-15.
[12]潘军,刘卫东,张金成.涪陵页岩气田钻井工程技术进展与发展建议[J].石油钻探技术,2018,46(4):9-15.PAN Jun,LIU Weidong,ZHANG Jincheng.Drilling technology progress and recommendations for the Fuling shale gas field[J].Petroleum Drilling Techniques,2018,46(4):9-15.
[13]臧艳彬.川东南地区深层页岩气钻井关键技术[J].石油钻探技术,2018,46(3):7-12.ZANG Yanbin.Key drilling technology for deep shale gas reservoirs in the southeastern Sichuan region[J].Petroleum Drilling Techniques,2018,46(3):7-12.
[14]牛新明.涪陵页岩气田钻井技术难点及对策[J].石油钻探技术,2014,42(4):1-6.NIU Xinming.Drilling technology challenges and resolutions in Fuling shale gas field[J].Petroleum Drilling Techniques,2014,42(4):1-6.
[15]王建华,刘杰,张进.页岩气开发钻完井技术探讨[J].探矿工程(岩土钻掘工程),2015,42(10):1-5.WANG Jianhua,LIU Jie,ZHANG Jin.Complete drilling and completion technology for shale gas development[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2015,42(10):1-5.