川西双鱼石构造复杂深井安全快速钻井技术研究与实践
|
摘要
川西地区双鱼石构造深部地层蕴含丰富的油气资源,且具有储层埋藏深,地层高温、高压、高含硫,纵向上多产层、多压力系统,部分层段易漏、易塌、安全密度窗口窄,岩石硬度高、研磨性强、可钻性差等复杂地质条件,严重制约了钻井速度。针对川西地区双鱼石构造安全快速钻井地质和工程难点,文章重点从井身结构、钻井方式、钻头类型、提速工具、钻井液体系等方面进行了优化研究与现场试验,钻井安全提速效果显著,对川西双鱼石构造的深层油气勘探安全生产和降本增效具有重要意义。
Deep formations at Shuangyushi Structure in west Sichuan is abundant in oil and gas resources,they are featured with deep reservoir burial,high formation temperature,high pressure,high sulfur content,multiple payzones in vertical direction,multiple pressure systems,frequent well loss and well caving at some sections,and complex geologic conditions like narrow safety window,high rock hardness,high abrasion,andpoor drillability,which have seriously impeded the drilling cycle. In order to decrease the downhole accidents and improve the drilling speed,a series of safe quick drilling technology was studied and applied,including optimization of casing program,drilling modes,the bits,quick drilling tools,drilling fluid systems and so on. The application showed great achievement obtained,being of great significance for safe operation and cost reduction in deep petroleum exploration at Western Sichuan region.
Deep formations at Shuangyushi Structure in west Sichuan is abundant in oil and gas resources,they are featured with deep reservoir burial,high formation temperature,high pressure,high sulfur content,multiple payzones in vertical direction,multiple pressure systems,frequent well loss and well caving at some sections,and complex geologic conditions like narrow safety window,high rock hardness,high abrasion,andpoor drillability,which have seriously impeded the drilling cycle. In order to decrease the downhole accidents and improve the drilling speed,a series of safe quick drilling technology was studied and applied,including optimization of casing program,drilling modes,the bits,quick drilling tools,drilling fluid systems and so on. The application showed great achievement obtained,being of great significance for safe operation and cost reduction in deep petroleum exploration at Western Sichuan region.
引文
[1]何龙,朱礼平,欧彪,等.川西须二深井三开钻井技术及先导试验[J].石油钻采工艺,2015,37(2):16-18.
[2]高德伟,王强,李文哲,等.川西地区深井非常规井身结构设计与实践——以九龙山构造龙004-X1井为例[J].天然气工业,2015,35(4):82-87.
[3]石秉忠,欧彪,徐江,等.川西深井钻井液技术难点分析及对策[J].断块油气田,2011,18(6):799-802.
[4]钟卫,赵怀德,李建山.提高川西地区中深井及深井钻井效率探讨[J].石油钻探技术,2004,32(6):16-18.
[5]刘斌,张生军,杨志斌,等.川西地区中深井快速钻井的钻井液应用技术[J].天然气工业,2010,30(9):65-68.
[6]陈修平,邹德勇.PDC钻头泥页岩地层钻进泥包机理及对策研究进展[J].天然气工业,2014,34(2):87-91.
[7]张存福,霍自成,周平.涩北气田钻井工程提速、提效措施及成效[J].天然气工业,2014,34(10):133-136.
[8]邓虎,胥志雄,王怀金,等.塔里木盆地山前巨厚砾石层快速钻井技术[J].天然气工业,2014,34(10):66-70.
[9]李玉民.塔河油田南缘盐膏层钻井技术[J].石油钻探技术,2004,32(3):8-11.
[10]Omojuwa E O,Osisanya S O,Ahmed R.Properties of salt formations essential for modeling instabilities while drilling[C]//Nigeria Annual International Conference and Exhibition,30 July-3 August 2011,Abuja,Nigeria.DOI:http://dx.doi.org/10.2118/150801-MS.
[11]Holt C A,Johnson J B.A method for drilling moving salt formations-drilling and underreaming concurrently[J].SPE Drilling Engineering,1986,4(1):315-324.
[12]张锦荣,陈安明,周玉仓.塔里木深井盐膏层钻井技术[J].石油钻探技术,2003,31(5):25-27.
[13]徐同台,赵忠举.21世纪初国外钻井液和完井液技术[M].北京:石油工业出版社,2004.
[14]Gulyaev V I,Khudolii S N,Glushakova O V.Self-excitation of deep-well drill string torsional vibrations[J].Strength of Materials,2009,41(6):613-622.
[15]李官华,伍贤柱,李朝阳,等.四川非常规气田开发主要钻井技术及其应用效果[J].天然气工业,2015,35(9):83-88.
[2]高德伟,王强,李文哲,等.川西地区深井非常规井身结构设计与实践——以九龙山构造龙004-X1井为例[J].天然气工业,2015,35(4):82-87.
[3]石秉忠,欧彪,徐江,等.川西深井钻井液技术难点分析及对策[J].断块油气田,2011,18(6):799-802.
[4]钟卫,赵怀德,李建山.提高川西地区中深井及深井钻井效率探讨[J].石油钻探技术,2004,32(6):16-18.
[5]刘斌,张生军,杨志斌,等.川西地区中深井快速钻井的钻井液应用技术[J].天然气工业,2010,30(9):65-68.
[6]陈修平,邹德勇.PDC钻头泥页岩地层钻进泥包机理及对策研究进展[J].天然气工业,2014,34(2):87-91.
[7]张存福,霍自成,周平.涩北气田钻井工程提速、提效措施及成效[J].天然气工业,2014,34(10):133-136.
[8]邓虎,胥志雄,王怀金,等.塔里木盆地山前巨厚砾石层快速钻井技术[J].天然气工业,2014,34(10):66-70.
[9]李玉民.塔河油田南缘盐膏层钻井技术[J].石油钻探技术,2004,32(3):8-11.
[10]Omojuwa E O,Osisanya S O,Ahmed R.Properties of salt formations essential for modeling instabilities while drilling[C]//Nigeria Annual International Conference and Exhibition,30 July-3 August 2011,Abuja,Nigeria.DOI:http://dx.doi.org/10.2118/150801-MS.
[11]Holt C A,Johnson J B.A method for drilling moving salt formations-drilling and underreaming concurrently[J].SPE Drilling Engineering,1986,4(1):315-324.
[12]张锦荣,陈安明,周玉仓.塔里木深井盐膏层钻井技术[J].石油钻探技术,2003,31(5):25-27.
[13]徐同台,赵忠举.21世纪初国外钻井液和完井液技术[M].北京:石油工业出版社,2004.
[14]Gulyaev V I,Khudolii S N,Glushakova O V.Self-excitation of deep-well drill string torsional vibrations[J].Strength of Materials,2009,41(6):613-622.
[15]李官华,伍贤柱,李朝阳,等.四川非常规气田开发主要钻井技术及其应用效果[J].天然气工业,2015,35(9):83-88.