焦页197-4HF井油基钻井液技术
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摘要
焦页197-4HF井是涪陵页岩气田平桥南区197平台的一口三开制大位移开发水平井。该井长水平段位于志留系龙马溪组页岩地层,在钻井施工中面临着极大挑战,一是长水平井段易形成岩屑床,扭矩摩阻大;二是页岩易水化膨胀,造成井壁失稳;三是页岩地层微裂隙发育,钻井液滤失量大。为保证钻井施工正常进行,前期通过室内对比实验,优选出了合适油基钻井液配方。现场使用情况表明,优选出的钻井液配方完全满足现场施工要求,安全顺利地完成了三开长水平段作业。
Jiaoye 197-4 HF was a three-section long reach horizontal well drilled from the No.197 platform in the Fuling Pingqiao Shale Gas Field. The long horizontal section of the well was located in the shale member of Longmaxi Formation in Silurian. Great challenges were faced in drilling:(1) It was easy to form cuttings beds over the long horizontal section with high torque friction;(2) The shale was easy to hydrate and expand, resulting in wellbore instability;(3) Micro-fissures were developed in shale formation, leading to large loss of drilling fluids. In order to ensure the normal drilling operation, the appropriate formulation of the oil-based drilling fluid was optimized through indoor comparative experiments in the early stage. Field application showed that the optimized drilling fluid formulation fully met the requirements of the field work, achieving safe and smooth completion of the third-section horizontal drilling.
Jiaoye 197-4 HF was a three-section long reach horizontal well drilled from the No.197 platform in the Fuling Pingqiao Shale Gas Field. The long horizontal section of the well was located in the shale member of Longmaxi Formation in Silurian. Great challenges were faced in drilling:(1) It was easy to form cuttings beds over the long horizontal section with high torque friction;(2) The shale was easy to hydrate and expand, resulting in wellbore instability;(3) Micro-fissures were developed in shale formation, leading to large loss of drilling fluids. In order to ensure the normal drilling operation, the appropriate formulation of the oil-based drilling fluid was optimized through indoor comparative experiments in the early stage. Field application showed that the optimized drilling fluid formulation fully met the requirements of the field work, achieving safe and smooth completion of the third-section horizontal drilling.
引文
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[13] 王磊,罗勇,刘胜,等.油基钻井液流变性调控技术研究[J].化学与生物工程,2015,(11):48-51.WANG Lei,LUO Yong,LIU Sheng,et al.Research of rheological control technology of oil-based drilling fluid[J].Chemistry & Bioengineering,2015,(11):48-51.
[14] 王凯,吴事难,徐彤,等.压力控制钻井技术高效开发页岩气藏[J].中国石油和化工标准与质量,2017,37(6):112-113.WANG Kai,WU Shinan,XU Tong,et al.Pressure-controlled drilling technology to efficiently develop shale gas reservoirs[J].China Petroleum and Chemical Standard and Quality,2017,37(6):112-113.
[15] 蔚宝华,邓金根,闫伟.层理性泥页岩地层井壁坍塌控制方法研究[J].石油钻探技术,2010,38(1):56-59.WEI Baohua,DENG Jingen,YAN Wei.Borehole sloughing control in shale formations[J].Petroleum Drilling Techniques,2010,38(1):56-59.
[2] 臧伟伟,向锋.油基钻井液在梁页1HF井的应用[J].中国石油和化工标准与质量,2013,(3):184.ZANG Weiwei,XIANG Feng.Application of oil-based drilling fluid in Liangye 1HF Well[J].China Petroleum and Chemical Standard and Quality,2013,(3):184.
[3] 曾涛.焦页60-5HF井钻井技术[J].探矿工程(岩土钻掘工程),2016,43(7):52-58.ZENG Tao.Drilling technology for Jiaoye Well 60-5HF[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2016,43(7):52-58.
[4] 王国庆,王建波,陈广,等.焦页非常规页岩气井优快钻井技术[J].探矿工程(岩土钻掘工程),2014,(10):17-21.WANG Guoqing,WANG Jianbo,CHEN Guang,et al.Optimized and fast drilling for construction of Jiaoye unconventional shale gas well[J].Exploration Engineering (Rock & Soil Drilling and Tunneling),2014,(10):17-21.
[5] 梁大川.泥页岩水化机理研究现状[J].钻井液与完井液,1997,(6):29-31.LIANG Dachuan.Review on the study of shale hydration mechanism[J].Drilling Fluid and Completion Fluid,1997,(6):29-31.
[6] 罗健生,鄢捷年.页岩水化对其力学性质和井壁稳定性的影响[J].石油钻采工艺,1999,21(2):7-13.LUO Jiansheng,YAN Jienian.Impact of shale hydration on its mechanical property and borehole wall stability[J].Oil Drilling & Production Technology,1999,21(2):7-13.
[7] 刘厚彬,孟英峰,李皋,等.泥页岩水化作用对岩石强度的影响[J].钻采工艺,2010,33(6):18-20.LIU Houbin,MENG Yingfeng,LI Gao,et al.Theoretical simulation and experimental evaluation of the effect of Hydration on the shale rock strength[J].Drilling & Production Technology,2010,33(6):18-20.
[8] 周华安,王德承,杨兰平.强抑制封堵性防塌钻井液研究及应用[J].钻采工艺,1996,19(2):71-76.ZHOU Huaan,WANG Decheng,YANG Lanping.Research and application of anti-collapse drilling fluids with strong sealing performance[J].Drilling & Production Technology,1996,19(2):71-76.
[9] 褚奇,李涛,王栋,等.龙凤山气田强抑制封堵型防塌钻井液技术[J].钻井液与完井液,2016,33(5):35-40.CHU Qi,LI Tao,WANG Dong,et al.Plugging inhibitive drilling fluid used in Longfengshan Gas Field[J].Drilling Fluid & Completion Fluid,2016,33(5):35-40.
[10] 邵兆美,赵世贵,秦波波.油基钻井液在焦页197-4HF井的应用[J].山东化工,2018,47(10):79-81,83.SHAO Zhaomei,ZHAO Shigui,QIN Bobo.Application of oil base drilling fluids in Jiaoye 197-4HF[J].Shandong Chemical Industry,2018,47(10):79-81,83.
[11] 赵冀川,王诗琪,张春生.页岩气开发钻井液技术研究[J].当代化工,2018,(1):187-189.ZHAO Jichuan,WANG Shiqi,ZHANG Chunsheng.Study on drilling fluid technology for shale gas development[J].Contemporary Chemical Industry,2018,(1):187-189.
[12] 匡韶华,蒲晓林,柳燕丽.高密度钻井液稳定性和流变性控制技术[J].钻井液与完井液,2011,28(3):5-8.KUANG Shaohua,PU Xiaolin,LIU Yanli.Study on stability and rheology control technology of high-density drilling fluid[J].Drilling Fluid & Completion Fluid,2011,28(3):5-8.
[13] 王磊,罗勇,刘胜,等.油基钻井液流变性调控技术研究[J].化学与生物工程,2015,(11):48-51.WANG Lei,LUO Yong,LIU Sheng,et al.Research of rheological control technology of oil-based drilling fluid[J].Chemistry & Bioengineering,2015,(11):48-51.
[14] 王凯,吴事难,徐彤,等.压力控制钻井技术高效开发页岩气藏[J].中国石油和化工标准与质量,2017,37(6):112-113.WANG Kai,WU Shinan,XU Tong,et al.Pressure-controlled drilling technology to efficiently develop shale gas reservoirs[J].China Petroleum and Chemical Standard and Quality,2017,37(6):112-113.
[15] 蔚宝华,邓金根,闫伟.层理性泥页岩地层井壁坍塌控制方法研究[J].石油钻探技术,2010,38(1):56-59.WEI Baohua,DENG Jingen,YAN Wei.Borehole sloughing control in shale formations[J].Petroleum Drilling Techniques,2010,38(1):56-59.