页岩气水平井JY10HF井钻井关键技术及认识
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摘要
JY10HF井是南川金佛山断坡第一口页岩气预探水平井,钻遇地层具有缝洞发育、倾角大和可钻性差等特点,钻井过程中面临易漏失、易坍塌、易井斜和机械钻速低等难题。鉴于此,采取"导管+四开制"井身结构、旋转导向控制井身轨迹、优选钻头及工具、优化堵漏措施等技术,完成了该井的施工任务。为进一步实现该区块页岩气水平井提速提效,分别从井身结构、井眼轨道设计和防斜打快等方面进行了探讨和优化,提出了优化技术套管下深、采用双二维轨道设计、应用欠平衡钻井技术和优选旋转导向工具等提速方案。研究内容可为类似页岩气区块开发提供技术支撑和方法指导。
Well JY10 HF is the first exploratory shale gas horizontal well in the Jinfoshan fault slope of Nanchuan. The developed fracture and cave,large dip angle and poor drillability make it easy to be faced with lost circulation,wellbore collapse,inclination and low drilling speed. To address the problems,the "conductor + foursection casing program",the rotary steerable system controlling well trajectory,drill bit and tools selection and the lost circulation control optimization were conducted to basically complete well construction. To further increase drilling speed and efficiency of the shale gas horizontal wells in the block,the casing program optimization,the well path design and the anti-inclination and fast drilling measures were discussed. Intermediate casing running depth optimization,two dimensional well path design,underbalanced drilling technology and rotary steerable tool selection were conducted,providing guidance and references for the further shale gas development of the block.
Well JY10 HF is the first exploratory shale gas horizontal well in the Jinfoshan fault slope of Nanchuan. The developed fracture and cave,large dip angle and poor drillability make it easy to be faced with lost circulation,wellbore collapse,inclination and low drilling speed. To address the problems,the "conductor + foursection casing program",the rotary steerable system controlling well trajectory,drill bit and tools selection and the lost circulation control optimization were conducted to basically complete well construction. To further increase drilling speed and efficiency of the shale gas horizontal wells in the block,the casing program optimization,the well path design and the anti-inclination and fast drilling measures were discussed. Intermediate casing running depth optimization,two dimensional well path design,underbalanced drilling technology and rotary steerable tool selection were conducted,providing guidance and references for the further shale gas development of the block.
引文
[1]龙志平,王彦祺,周玉仓.隆页1HF页岩气井钻井关键技术[J].石油钻探技术,2016,44(2):16-21.LONG Z P, WANG Y Q, ZHOU Y C. Key drillingtechnologies of shale gas well Longye 1HF[J]. Petrole-um Drilling Techniques,2016,44(2):16-21.
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[7]马庆涛,葛鹏飞,王晓宇,等.涪页HF-1页岩气水平井钻井关键技术[J].石油机械,2013,41(8):107-110.MA Q T,GE P F,WANG X Y,et al. Key technology ofshale gas horizontal drilling in well HF-1 of Fuye[J].China Petroleum Machinery,2013,41(8):107-110.
[8]王志月,高德利,刁斌斌,等.考虑“井工厂”学习效应的平台位置优化方法[J].天然气工业,2018,41(5):16-20.WANG Z Y,GAO D L,DIAO B B,et al. Optimizationof platform positioning considering the learning effect inthe “well factory” mode[J]. Natural Gas Industry,2018,41(5):16-20.
[9]李培超,李培伦,曹丽杰.斜井坍塌压力计算公式的理论研究[J].上海工程技术大学学报,2010,24(1):1-4.LI P C,LI P L,CAO L J. Theoretical study on col-lapse pressure calculating equation of deviated wellbore[J]. Journal of Shangh Ai University of Engineering Sci-ence,2010,24(1):1-4.
[10]袁明进,王彦祺.彭水区块页岩气水平井钻井技术方案优化探讨[J].钻采工艺,2015,38(5):28-31.YUAN M J,WANG Y Q. Optimization of drilling tech-nologies used for shale gas horizontal well in pengshuiblock[J]. Drilling and Production Technology,2015,38(5):28-31.
[11]肖洲.气体钻井技术在长宁页岩气区块的应用[J].钻采工艺,2016,39(3):125-126.XIAO Z. The application of gas drilling technology inChangning shale gas block[J]. Drilling and Produc-tion Technilogy,2016,39(3):125-126.
[2]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 Z P,WANG Y Q,ZHOU Y C,et,al. Drillingoptimization design of shale gas horizontal well in southblock of Pingqiao[J]. Exploration Engineering(Rock&Soil Drilling and Tunneling),2017,44(12):34-37.
[3]唐嘉贵.川南探区页岩气水平井钻井技术[J].石油钻探技术,2014,42(5):47-51.TANG J G. Discussion on shale gas horizontal drillingtechnology in Southern Sichuan[J]. Petroleum DrillingTechniques,2014,42(5):47-51.
[4]杨力.彭水区块页岩气水平井防漏堵漏技术探讨[J].石油钻探技术,2013,41(5):16-20.YANG L. Leak prevention and plugging techniques forshale gas horizontal wells in Pengshui block[J]. Petro-leum Drilling Techniques,2013,41(5):16-20.
[5]姜政华,童胜宝,丁锦鹤.彭页HF-1页岩气水平井钻井关键技术[J].石油钻探技术,2012,40(3):28-31.JIANG Z H,TONG S B,DING J H. Key technologiesadopted for shale gas horizontal well Pengye HF-1[J].Petroleum Drilling Techniques,2012,40(4):28-31.
[6]曹华庆,高长斌.非常规龙马溪组和牛蹄塘组页岩取心技术[J].油气藏评价与开发,2018,8(2):80-85.CAO H Q,GAO C B. Shale coring technology in Long-maxi formation and Niutitang formation of unconventionshale gas field[J]. Reservoir Evaluation and Develop-ment,2018,8(2):80-85.
[7]马庆涛,葛鹏飞,王晓宇,等.涪页HF-1页岩气水平井钻井关键技术[J].石油机械,2013,41(8):107-110.MA Q T,GE P F,WANG X Y,et al. Key technology ofshale gas horizontal drilling in well HF-1 of Fuye[J].China Petroleum Machinery,2013,41(8):107-110.
[8]王志月,高德利,刁斌斌,等.考虑“井工厂”学习效应的平台位置优化方法[J].天然气工业,2018,41(5):16-20.WANG Z Y,GAO D L,DIAO B B,et al. Optimizationof platform positioning considering the learning effect inthe “well factory” mode[J]. Natural Gas Industry,2018,41(5):16-20.
[9]李培超,李培伦,曹丽杰.斜井坍塌压力计算公式的理论研究[J].上海工程技术大学学报,2010,24(1):1-4.LI P C,LI P L,CAO L J. Theoretical study on col-lapse pressure calculating equation of deviated wellbore[J]. Journal of Shangh Ai University of Engineering Sci-ence,2010,24(1):1-4.
[10]袁明进,王彦祺.彭水区块页岩气水平井钻井技术方案优化探讨[J].钻采工艺,2015,38(5):28-31.YUAN M J,WANG Y Q. Optimization of drilling tech-nologies used for shale gas horizontal well in pengshuiblock[J]. Drilling and Production Technology,2015,38(5):28-31.
[11]肖洲.气体钻井技术在长宁页岩气区块的应用[J].钻采工艺,2016,39(3):125-126.XIAO Z. The application of gas drilling technology inChangning shale gas block[J]. Drilling and Produc-tion Technilogy,2016,39(3):125-126.