塔里木油田超深井钻井设计及优化技术——以亚洲最深井轮探1井为例

doi:10.3969/j.issn.1672-7703.2021.03.012

摘要/Abstract

摘要： 塔里木盆地台盆区下寒武统肖尔布拉克组、震旦系奇格布拉克组白云岩储层发育，靠近下寒武统玉尔吐斯组烃源岩，有利勘探面积为27500km²，勘探前景广阔。该区域从上到下地层岩性差别大，部分地层断裂发育、压力系统复杂，火成岩发育、地层可钻性差。复杂的地质条件及超高压超高温等难题给钻井工程带来巨大挑战。通过开展基于地质工程一体化的井身结构设计方法研究，形成了适合于超深井钻探的井身结构系列；开展特殊岩性地层岩石力学特征研究，结合地层破岩特征形成了个性化钻头设计及优选技术；基于钻井工程参数最优破岩规律，形成了水力参数和机械参数优化设计技术，同时基于地层岩性特征和井壁稳定分析结果，配套完善了钻井技术。目前，塔里木油田已经形成超8000m超深井钻探配套技术，同时具备9000m的钻探能力，完成了轮探1井的钻探，为有效推进塔里木盆地深部层系勘探进程、寻找油气增储上产接替区提供有力支撑。

关键词: 超深井, 井身结构设计, 可钻性, 钻井参数优化, 轮探1 井

Abstract: The dolomite reservoirs of the Lower Cambrian Xiaoerbulake Formation and the Sinian Qigebulake Formation are developed in the platform-basin area in the Tarim Basin, which are close to the source rocks of the Lower Cambrian Yuertusi Formation. The favorable target area is 27500 km2 and it has a broad exploration prospect. However, the geological conditions in this area are very complex. The lithology difference between the upper and lower strata is large. Faults are developed in some strata and the pressure system is complex. In addition,igneous rocks are developed with poor drillability. The complex geological conditions and ultra-high pressure and ultra-high temperature make the drilling face great challenges. Through the research on wellbore structure design based on the integration of geology and engineering,the company has developed wellbore structure design technologies which are suitable for ultra-deep well drilling. Through lab test of rock mechanics characteristics of special formation rocks, it has developed the personalized design and selection of drilling bits combining with the rock breaking characteristics of the strata, and the hydraulic and mechanic parameters have been optimized based on the optimal rock breaking law. Meanwhile, based on the formation lithology characteristics and wellbore stability analysis, the drilling technology has been improved. By continuous research and improvement, the Tarim Oilfield possesses the supporting technology for drilling ultra-deep wells over 8000 m, and capable of drilling wells up to 9000 m. The completion of the Asia's deepest well with a depth of 8882 m, Well Luntan 1, effectively promotes the exploration process of the deep strata and strongly supports the discovery of replacement areas for increasing reserves and production in the Tarim Basin.

Key words: ultra-deep well, wellbore structure design, drillability, drilling parameter optimization, Well Luntan 1

中图分类号:

TE22

杨沛, 刘洪涛, 李宁, 周波, 陈龙, 文亮. 塔里木油田超深井钻井设计及优化技术——以亚洲最深井轮探1井为例[J]. 中国石油勘探, 2021, 26(3): 126-135.

Yang Pei, Liu Hongtao, Li Ning, Zhou Bo, Chen Long, Wen Liang. Drilling design and optimization technology of ultra-deep wells in the Tarim Oilfield:a case study of Well Luntan 1, the deepest well in Asia[J]. China Petroleum Exploration, 2021, 26(3): 126-135.

参考文献

[1] 杨海军，陈永权，田军，等．塔里木盆地轮探1 井超深层油气勘探重大发现与意义[J]. 中国石油勘探，2020,25(2):62-72. Yang Haijun, Chen Yongquan, Tian Jun, et al . Discovery and significance of ultra deep oil and gas exploration in well Luntan 1, Tarim Basin[J]. China Petroleum Exploration, 2020,25(2):62-72.
[2] 谢会文，能源，敬兵，等．塔里木盆地寒武系—奥陶系白云岩潜山勘探新发现与勘探意义[J]. 中国石油勘探，2017,22(3):1-11. Xie Huiwen, Neng Yuan, Jing Bing，et al . New discovery and exploration significance of dolomite buried hill exploration of Cambrian Ordovician in Tarim Basin[J]. China Petroleam Exploration, 2017,22(3):1-11.
[3] 鲜成钢，张介辉，陈欣，等．地质力学在地质工程一体化中的应用[J]. 中国石油勘探，2017,22(1):75-88. Xian Chenggang, Zhang Jiehui, Chen Xin，et al . The application of geomechanics in the integration of geological engineering [J].China Petroleam Exploration, 2017,22(1):75-88.
[4] 王书婷，张景富，刘鹏飞．页岩地层井壁稳定多模型对比[J]. 大庆石油地质与开发，2020,39(2):166-174. Wang Shuting, Zhang Jingfu, Liu Pengfei. Multiple model correlation of shale formation borehole stability[J]. Daqing Petroleum Geology and Development, 2020,39(2):166-174.
[5] 杨沛，陈勉，金衍，等．裂缝承压能力模型及其在裂缝地层堵漏中的应用[J]. 岩石力学与工程学报，2012,31(3):479-487. Yang Pei, Chen Mian, Jin Yan，et al . Fracture bearing capacity model and its application in fracture formation plugging[J]. Journal of Rock Mechanics and Engineering, 2012,31(3):479-487.
[6] 陈勉，杨沛，侯冰，等．钻井液漏失安全评价钻前预测研究[J]. 石油天然气学报，2012,34(2):106-109. Chen Mian, Yang Pei, Hou Bing，et al . Study on pre drilling prediction of drilling fluid leakage safety evaluation[J]. Journal of Petroleum and Natural Gas, 2012,34(2):106-109.
[7] 侯喜茹，柳贡慧，仲文旭．井身结构设计必封点综合确定方法研究[J]. 石油大学学报( 自然科学版)，2005,29(4):58-61. Hou Xiru, Liu Gonghui, Zhong Wenxu. Study on the comprehensive determination method of the necessary sealing points in well structure design[J]. Journal of Petroleum University (Natural Science Edition), 2005,29(4):58-61.
[8] 马德新，全家正，何世明，等．基于安全风险评价的深探井井身结构设计方法研究[J]. 天然气勘探与开发，2015,38(1):73-77. Ma Dexin, Quan Jiazheng, He Shiming，et al . Study on design method of deep exploration well structure based on safety risk assessment[J]. Natural Gas Exploration and Development, 2015,38(1):73-77.
[9] 管志川，李春山，周广陈．深井和超深井钻井井身结构设计方法[J]. 石油大学学报( 自然科学版)，2001,25(6):42-44. Guan Zhichuan, Li Chunshan, Zhou Guangchen. Design method of well bore structure for deep and ultra deep well drilling[J]. Journal of Petroleum University (Natural Science Edition), 2001,25(6):42-44.
[10] 滕学清，陈勉，杨沛，等．库车前陆盆地超深井全井筒提速技术[J]. 中国石油勘探，2016,21(1):76-88. Teng Xueqing, Chen Mian, Yang Pei，et al . Full wellbore velocity raising technology of ultra deep well in Kuqa foreland basin[J]. China Petroleam Exploration, 2016,21(1):76-88.
[11] 杨明合，夏宏南，金业权，等．高温高压井套管柱设计和强度校核[J]. 石油钻探技术，2002,30(1):25-27. Yang Minghe, Xia Hongnan, Jin Yequan，et al . Design and strength check of casing string in high temperature and high pressure well[J]. Petroleum Drilling Technology, 2002,30(1): 25-27.
[12] 石油钻井工程专业标准化委员会．SY/T 5724—2008 套管柱结构与强度设计[S]. 北京：中国标准出版社，2008. China Petroleum Drilling Standardization Committee. SY/T 5724-2008 Design for casing string structure and strength[S]. Beijing: Standards Press of China, 2008.
[13] 刘宝军，乔李华，许丰平．考虑气井全生命周期安全的套管柱强度设计方法研究[J]. 钻采工艺，2018,41(6):9-12. Liu Baojun, Qiao Lihua, Xu Fengping. Study on the strength design method of casing string considering the safety of the whole life cycle of gas well[J]. Drilling and Production Technology, 2018,41(6):9-12.
[14] 张辉，高德利．钻头选型通用方法研究[J]. 石油大学学报( 自然科学版)，2005,29(6):45-49. Zhang Hui, Gao Deli. Study on general method of bit selection[J]. Journal of Petroleum University (Natural Science Edition), 2005,29(6):45-49.
[15] 刘向君，宴建军，罗平亚．利用测井资料评价岩石可钻性研究[J]. 天然气工业，2005,25(7):69-71. Liu Xiangjun, Yan Jianjun, Luo Pingya. Study on rock drillability evaluation by well logging data[J]. Natural Gas Industry, 2005,25(7):69-71.
[16] 赵军，蔡亚西，林元华．声波测井资料在岩石可钻性及钻头选型中的应用[J]. 测井技术，2001,25(4):305-307. Zhao Jun, Cai Yaxi, Lin Yuanhua. Application of sonic logging data in rock drillability and bit selection[J]. Logging Technology, 2001,25(4):305-307.
[17] 邹德永，陈永红．利用声波时差资料确定岩石可钻性的研究[J]. 石油钻采工艺，1996,18(6):27-30. Zou Deyong, Chen Yonghong. Determination of rock drillability by acoustic time difference data[J]. Petroleum Drilling and Production Technology, 1996,18(6):27-30.
[18] 中国石油天然气股份有限公司．钻井工具的选取方法和装置[P]. 中国专利：201710984401.9，2019-04-23. China National Petroleum Corporation. Method and device for selecting drilling tools[P]. Chinese patent: 201710984401.9, 2019-04-23.
[19] 李子丰，张永贵，侯绪田，等．钻柱纵向和扭转振动分析[J]. 工程力学，2004,17(6):203-210. Li Zifeng, Zhang Yonggui, Hou Xutian，et al . Analysis of longitudinal and torsional vibration of drill string [J]. Engineering Mechanics, 2004,17(6):203-210.
[20] 刘清友，马德坤，钟青．钻柱扭转振动模型的建立及求解[J]. 石油学报，2000,25(2):78-82. Liu Qingyou, Ma Dekun, Zhong Qing. Establishment and solution of torsional vibration model of drill string [J]. Journal of Petroleum, 2000,25(2):78-82.
[21] 梁奇敏，侯本权，方丽超．多约束条件下的钻井液排量优选研究[J]. 石油机械，2013,41(8):13-16. Liang Qimin, Hou Benquan, Fang Lichao. Optimization of drilling fluid displacement under multiple constraints[J]. Petroleum Machinery, 2013,41(8):13-16.
[22] 张福祥，郑新权，李志斌，等．钻井优化系统在国内非常规油气资源开发中的实践[J]. 中国石油勘探，2020,25(2):96-109. Zhang Fuxiang, Zheng Xinquan, Li Zhibin, et al . Practice of drilling optimization system in the development of unconventional oil and gas resources in China[J]. China Petroleum Exploration, 2020,25(2):96-109.
[23] 张以明，李晶莹，罗玉财，等．饶阳凹陷中央深潜山带钻井提速配套技术与应用[J]. 中国石油勘探，2020,25(6):87-93. Zhang Yiming, Li Jingying, Luo Yucai, et al . Supporting technology for fast drilling and its application in the central deep buried hill zone in the Raoyang Sag[J]. China Petroleum Exploration, 2020,25(6):87-93.