南堡13-1706大位移井钻井技术
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摘要
冀东油田南堡滩海油田受端岛面积限制,需要部署水平位移大于3 000 m的大位移井开发。针对大位移井钻井施工中存在摩阻扭矩大、轨迹控制难、循环泵压高、井眼清洁难度大、长裸眼井壁失稳、深部井段定向托压等技术难题,开展了人工端岛大位移井钻完井技术研究。通过对井眼轨道优化设计、装备升级改造,提升大位移井井眼延伸极限,利用Landmark软件对摩阻扭矩、钻井参数进行分析,研究了KCl抗高温钻井液复配新型固壁剂和封堵剂强化钻井液封堵能力及套管安全下入技术。采用井眼轨迹控制、降摩减扭、优化钻井液、套管安全下入等常规技术的优化和集成应用,成功实施了大位移井南堡13-1706井。该井完钻井深6 387 m,最大井斜83°,水平位移4 941 m,为水平位移大于4 500 m的大位移井钻井实践积累了经验,为加快南堡滩海中深层油藏的勘探开发提供了技术支持。
Due to the areal restriction of end island, it is necessary to deploy extended reach wells with the horizontal displacement over 3 000 m to develop Nanpu shallow sea oilfield of Jidong Oilfield. The drilling operation of extended reach well is faced with a series of difficulties, e.g. high torque and drag, difficult trajectory control, high circulating pump pressure, difficult hole cleaning, instable long open-hole wellbore and directional backing pressure in the deep hole section. To solve these difficulties, well trajectory was optimally designed, the equipment was upgraded and transformed so as to increase the hole extension limit of extended reach well. What's more, the conventional technologies were optimized and integratedly applied, including well trajectory control,torque and drag reduction, drilling fluid and safe casing running. By taking these measures, an extended reach well named Nanpu 13-1706 is successfully drilled with total depth 6 387 m, maximum deviation angle of 83° and horizontal displacement of 4 941 m. The research results accumulate the experience for the drilling of extended reach wells with horizontal displacement over 4 500 m, and provide the technical support for the exploration and development of middle-deep oil reservoirs in Nanpu shallow sea.
Due to the areal restriction of end island, it is necessary to deploy extended reach wells with the horizontal displacement over 3 000 m to develop Nanpu shallow sea oilfield of Jidong Oilfield. The drilling operation of extended reach well is faced with a series of difficulties, e.g. high torque and drag, difficult trajectory control, high circulating pump pressure, difficult hole cleaning, instable long open-hole wellbore and directional backing pressure in the deep hole section. To solve these difficulties, well trajectory was optimally designed, the equipment was upgraded and transformed so as to increase the hole extension limit of extended reach well. What's more, the conventional technologies were optimized and integratedly applied, including well trajectory control,torque and drag reduction, drilling fluid and safe casing running. By taking these measures, an extended reach well named Nanpu 13-1706 is successfully drilled with total depth 6 387 m, maximum deviation angle of 83° and horizontal displacement of 4 941 m. The research results accumulate the experience for the drilling of extended reach wells with horizontal displacement over 4 500 m, and provide the technical support for the exploration and development of middle-deep oil reservoirs in Nanpu shallow sea.
引文
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[11]徐小峰,孙宁,孟英峰,等.冀东油田大斜度大位移井井眼清洁技术[J].西南石油大学学报(自然科学版),2017,39(1):148-154.XU Xiaofeng,SUN Ning,MENG Yingfeng,et al.Well cleaning technology for extended reach and high inclination wells in Jidong Oilfield[J].Journal of Southwest Petroleum University(Science&Technology Edition),2017,39(1):148-154.
[12]蒋明,罗树祥,王先洲,等.低含量KCl钻井液在苏里格气田的应用[J].石油钻采工艺,2014,36(4):54-56.JIANG Ming,LUO Shuxiang,WANG Xianzhou,et al.Application of low content KCl drilling fluid in Sulige Gas Field[J].Oil Drilling&Production Technology,2014,36(4):54-56.
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[2]朱宽亮.南堡深层潜山水平井欠平衡钻井技术研究与实践[J].石油钻采工艺,2013,35(4):17-21.ZHU Kuanliang.Reserch and practice of underbalanced horizontal well drilling technology in deep buried-hill reservoirs in Nanpu Oilfield[J].Oil Drilling&Production Technology,2013,35(4):17-21.
[3]胡中志,刘永辉,潘俊英,等.南堡1号构造东一段大斜度长位移井钻井技术[J].钻采工艺,2013,36(2):24-27.HU Zhongzhi,LIU Yonghui,PAN Junying,et al.Drilling technology for extended reach and high inclination wells of Dongyi-1 formation in Nanpu No.1 structure[J].Drilling and Production Technology,2013,36(2):24-27.
[4]朱宽亮,吕艳,胡中志,等.南堡滩海大位移井钻井关键因素优化设计[J].探矿工程(岩土钻掘工程),2017,44(1):33-36.ZHU Kuanliang,LU Yan,HU Zhongzhi,et al.Optimum design of key factors for drilling extended reach wells in Nanpu beach[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2017,44(1):33-36.
[5]李娟,唐世忠,李文娟,等.埕海一区大位移水平井摩阻扭矩研究与应用[J].石油钻采工艺,2009,31(3):21-25.LI Juan,TANG Shizhong,LI Wenjuan,et al.Research on torque and drag in extended-reach horizontal wells and its application in Chenghai-1 area[J].Oil Drilling&Production Technology,2009,31(3):21-25.
[6]朱宽亮,陈金霞,卢淑芹.南堡3号构造深层脆性泥页岩井壁稳定机理分析与实践[J].石油钻采工艺,2016,39(5):1-4.ZHU Kuanliang,CHEN Jinxia,LU Shuqin.Analysis and practice of wellbore stability mechanism of deep brittle shale in Nanpu No.3 structure[J].Oil Drilling&Production Technology,2016,39(5):1-4.
[7]李典伟,杨忠福,邸百英,等.伊拉克鲁迈拉油田S形定向井降摩减扭技术[J].石油钻探技术,2016,44(5):22-27.LI Dianwei,YANG Zhongfu,DI Baiying,et al.Drag and torque reducing technology on S-shape directional wells of Rumaila Oilfield[J].Petroleum Drilling Techniques,2016,44(5):22-27.
[8]杨晓峰,杜晶晶.井眼轨迹连续控制钻井技术研究与应用[J].石油钻采工艺,2012,34(1):10-13.YANG Xiaofeng,DU Jingjing.Reserch and practice of well trajectory control drilling technology[J].Oil Drilling&Production Technology,2012,34(1):10-13.
[9]王先洲,蒋明,邓增库,等.苏76-1-20H井钻井技术[J].石油钻采工艺,2013,35(2):26-30.WANG Xianzhou,JIANG Ming,DENG Zengku,et al.Drilling technology of Well Su 76-1-20H[J].Oil Drilling&Production Technology,2013,35(2):26-30.
[10]汪志明,翟羽佳,高清春.大位移井井眼清洁监测技术在大港油田的应用[J].石油钻采工艺,2012,34(2):17-19.WANG Zhiming,ZHAI Yujia,GAO Qingxin.Establishment of bore hole cleaning and monitoring technology and its application in Dagang Oilfield[J].Oil Drilling&Production Technology,2012,34(2):17-19.
[11]徐小峰,孙宁,孟英峰,等.冀东油田大斜度大位移井井眼清洁技术[J].西南石油大学学报(自然科学版),2017,39(1):148-154.XU Xiaofeng,SUN Ning,MENG Yingfeng,et al.Well cleaning technology for extended reach and high inclination wells in Jidong Oilfield[J].Journal of Southwest Petroleum University(Science&Technology Edition),2017,39(1):148-154.
[12]蒋明,罗树祥,王先洲,等.低含量KCl钻井液在苏里格气田的应用[J].石油钻采工艺,2014,36(4):54-56.JIANG Ming,LUO Shuxiang,WANG Xianzhou,et al.Application of low content KCl drilling fluid in Sulige Gas Field[J].Oil Drilling&Production Technology,2014,36(4):54-56.
[13]周代生,李茜,苏强.KCl-有机盐聚合物钻井液在川西双鱼石区块的应用[J].钻井液与完井液,2018,35(1):57-60.ZHOU Daisheng,LI Qian,SU Qiang.Application of KCl organic salt polymer drilling fluid in upper section of wells drilled in Block Shuangyushi,West Sichuan[J].Drilling Fluid and Completion Fluid,2018,35(1):57-60.