玛湖油田玛18井区“工厂化”水平井钻井技术
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摘要
玛湖油田玛18井区致密油气水平井钻井存在钻井速度低、钻井周期长的问题,为此,在分析该井区地层情况和钻井技术难点的基础上,进行了"工厂化"水平井钻井关键技术研究,包括成熟钻头序列优选、直井段采用"MWD+螺杆+PDC钻头"钻进、造斜段和水平段使用"旋转导向工具+PDC钻头"钻进、应用XZ高性能水基钻井液等,形成了玛18井区"工厂化"水平井钻井技术,多口井的现场应用结果表明,单井完井周期明显缩短。其中,MaHW6234和MaHW6235平台水平井单井完井周期缩短至86.0 d;MaHW6203井钻井周期缩短至78.8 d,完钻井深6 130.00 m,创玛湖油田水平井最深纪录。玛湖油田玛18井区"工厂化"水平井钻井技术为高效开发玛湖油田三叠系百口泉组致密油气藏提供了技术支持。
In order to improve penetration rate of the Ma18 Well Block in the Mahu Oilfield, the factory drilling plan of horizontal well was proposed based on the analysis of the geological stratum conditions and technical challenges in well drilling in the field. Different techniques were applied to create the factory drilling plan for the horizontal well in the Ma18 Well Block including mature drill bit sequence optimization, the use of MWD + screw+PDC bit in drilling through vertical sections, the application of rotary steering tool+ PDC bit in the build-up/horizontal sections, and the XZ high-performance water-based drilling fluid, etc. The application of this technology achieved good results. The average single well completion period was significantly reduced resulting in 86.0 d for platform MaHW6234 and MaHW6235. It was reduced to 78.8 d for Well MaHW6203 with total depth to 6 130.00 m, setting the depth record of horizontal wells in the Mahu Oilfield. The factory drilling technology of horizontal wells in the Ma18 Well Block of the Mahu Oilfield has provided technical support for the efficient development of the Triassic Baikouquan Formation reservoir.
In order to improve penetration rate of the Ma18 Well Block in the Mahu Oilfield, the factory drilling plan of horizontal well was proposed based on the analysis of the geological stratum conditions and technical challenges in well drilling in the field. Different techniques were applied to create the factory drilling plan for the horizontal well in the Ma18 Well Block including mature drill bit sequence optimization, the use of MWD + screw+PDC bit in drilling through vertical sections, the application of rotary steering tool+ PDC bit in the build-up/horizontal sections, and the XZ high-performance water-based drilling fluid, etc. The application of this technology achieved good results. The average single well completion period was significantly reduced resulting in 86.0 d for platform MaHW6234 and MaHW6235. It was reduced to 78.8 d for Well MaHW6203 with total depth to 6 130.00 m, setting the depth record of horizontal wells in the Mahu Oilfield. The factory drilling technology of horizontal wells in the Ma18 Well Block of the Mahu Oilfield has provided technical support for the efficient development of the Triassic Baikouquan Formation reservoir.
引文
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[14]李洪,邹灵战,汪海阁,等.玛湖致密砂砾岩2 000 m水平段水平井优快钻完井技术[J].石油钻采工艺,2017,39(1):47-52.LI Hong,ZOU Lingzhan,WANG Haige,et al.High-quality fast drilling and completion technologies for horizontal wells with horizontal section of 2 000 m long in Mahu tight glutenites[J].Oil Drilling&Production Technology,2017,39(1):47-52.
[15]于洋飞,杨光,陈涛,等.新疆玛湖区块2 000 m长水平段水平井钻井技术[J].断块油气田,2017,24(5):727-730.YU Yangfei,YANG Guang,CHEN Tao,et al.Drilling technology of 2 km-long horizontal section in Mahu Block,Xinjiang Oilfield[J].Fault-Block Oil&Gas Field,2017,24(5):727-730.
[16]徐云龙,徐堆,张晓明,等.钻井液不落地技术在白鹭湖井工厂的应用[J].钻井液与完井液,2016,33(6):63-67.XU Yunlong,XU Dui,ZHANG Xiaoming,et al.Application of drilling fluid zero-discharge technology in Bailu Lake multi-well pad[J].Drilling Fluid&Completion Fluid,2016,33(6):63-67.
[2]POEDJONO B,ZABALDANO J P,SHEVECHENKO I,et al.Case studies in the application of pad design drilling in the Marcellus Shale[R].SPE 139045,2010.
[3]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中的应用[J].石油钻探技术,2014,42(1):20-25.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):20-25.
[4]路保平.中国石化页岩气工程技术进步及展望[J].石油钻探技术,2013,42(5):1-8.LU Baoping.Sinopec engineering technical advance and its developing tendency in shale gas[J].Petroleum Drilling Techniques,2013,42(5):1-8.
[5]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.
[6]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.
[7]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.
[8]刘斌.威远页岩气水基钻井液研究与应用[D].大庆:东北石油大学,2016.LIU Bin.The research and application of water-based drilling fluid for shale gas in Weiyuan[D].Daqing:Northeast Petroleum University,2016.
[9]李伟,刘文臣,周贤海,等.涪陵页岩气田三维水平井轨道优化设计方法探讨[J].石油钻探技术,2018,46(2):17-23.LI Wei,LIU Wencheng,ZHOU Xianhai,et al.3D horizontal wellbore trajectory optimization design method in the Fuling Shale Gas Field[J].Petroleum Drilling Techniques,2018,46(2):17-23.
[10]匡立新,刘卫东,甘新星,等.涪陵平桥南区块页岩气水平井钻井提速潜力分析[J].石油钻探技术,2018,46(4):16-22.KUANG Lixin,LIU Weidong,GAN Xinxing,et al.Acceleration potentials analysis of shale gas horizontal well drilling in the South Pingqiao Block of Fuling[J].Petroleum Drilling Techniques,2018,46(4):16-22.
[11]彭碧强,周峰,李茂森,等.用于页岩气水平井的防塌水基钻井液体系的优选与评价:以长宁-威远国家级页岩气示范区为例[J].天然气工业,2017,37(3):89-94.PENG Biqiang,ZHOU Feng,LI Maosen,et al.Optimization and evaluation of anti-collapse water-based drilling fluids for shale gas horizontal wells:a case study of the Changning-Weiyuan National Shale Gas Demonstration Area[J].Natural Gas Industry,2017,37(3):89-94.
[12]李彬,付建红,秦富兵,等.威远区块页岩气“井工厂”钻井技术[J].石油钻探技术,2017,45(5):13-18.LI Bin,FU Jianhong,QIN Fubing,et al.Well pad drilling technology in the Weiyuan Shale Gas Block[J].Petroleum Drilling Techniques,2017,45(5):13-18.
[13]凡帆,王京光,蔺文洁.长宁区块页岩气水平井无土相油基钻井液技术[J].石油钻探技术,2016,44(5):34-39.FAN Fan,WANG Jingguang,LIN Wenjie.Clay-free oil based drilling fluid technology for shale gas horizontal wells in the Changning Block[J].Petroleum Drilling Techniques,2016,44(5):34-39.
[14]李洪,邹灵战,汪海阁,等.玛湖致密砂砾岩2 000 m水平段水平井优快钻完井技术[J].石油钻采工艺,2017,39(1):47-52.LI Hong,ZOU Lingzhan,WANG Haige,et al.High-quality fast drilling and completion technologies for horizontal wells with horizontal section of 2 000 m long in Mahu tight glutenites[J].Oil Drilling&Production Technology,2017,39(1):47-52.
[15]于洋飞,杨光,陈涛,等.新疆玛湖区块2 000 m长水平段水平井钻井技术[J].断块油气田,2017,24(5):727-730.YU Yangfei,YANG Guang,CHEN Tao,et al.Drilling technology of 2 km-long horizontal section in Mahu Block,Xinjiang Oilfield[J].Fault-Block Oil&Gas Field,2017,24(5):727-730.
[16]徐云龙,徐堆,张晓明,等.钻井液不落地技术在白鹭湖井工厂的应用[J].钻井液与完井液,2016,33(6):63-67.XU Yunlong,XU Dui,ZHANG Xiaoming,et al.Application of drilling fluid zero-discharge technology in Bailu Lake multi-well pad[J].Drilling Fluid&Completion Fluid,2016,33(6):63-67.