Drilling Completion Techniques Used in Shale Gas Horizontal Wells in Jiaoshiba Block of Fuling Area
-
摘要: 针对涪陵焦石坝区块地质条件复杂、各向异性大,易导致发生井下故障、钻速慢、钻井周期长及成本居高不下的问题,在分析该区块页岩气钻井完井技术难点的基础上,进行了页岩气水平井钻井工程技术适应性评价,通过对丛式井布井方案、井身结构、井眼轨道设计、优快钻井技术、钻井液技术及页岩气层长水平段固井技术等进行优选及进一步优化,提出了涪陵焦石坝区块页岩气水平井钻井完井技术方案。该技术方案在焦页 1-2HF 井等17口井进行了现场实践及应用,初步形成了涪陵焦石坝区块页岩气水平井钻井完井技术。应用表明,该技术可显著提高机械钻速、缩短钻井周期,可为涪陵焦石坝区块页岩气规模开发提供技术支持。Abstract: In view of the problems of frequent downhole accidents in shale gas well drilling in Jiashiba Block of Fuling Area,slow penetration rate,long drilling cycle,and high cost caused due to complex geological conditions and strong anisotropy,the adaptability of drilling technologies used in Jiaoshiba Block was evaluated based on the analysis on the difficulties of shale gas well drilling.The technical drilling scheme for Jiaoshiba Block shale gas horizontal wells in Fuling Area was then proposed through evaluation,selection and optimization of cluster well placement,casing program,well trajectory,fast drilling techniques,drilling fluid,and cementing techniques for the long horizontal section.The technical scheme has been applied in 17 wells including Well Jiaoye1-2HF resulting in significant increase in penetration rate and drilling cycle reduction.The research provides sound technical support for shale gas’commercial development in Jiaoshiba Block of Fuling Area.
-
Keywords:
- shale gas /
- horizontal well /
- drilling /
- well cementing /
- casing program /
- drilling fluid /
- Jiaoshiba Block
-
-
[1] 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(4):28-31. Jiang Zhenghua,Tong Shengbao,Ding Jinhe.Key technologies adopted for shale gas horizontal well Pengye HF-1[J].Petroleum Drilling Techniques,2012,40(4):28-31. [2] 蒋廷学.页岩油气水平井压裂裂缝复杂性指数研究及应用展望[J].石油钻探技术,2013,41(2):7-12. Jiang Tingxue.The fracture complexity index of horizontal wells in shale oil and gas reservoirs[J].Petroleum Drilling Techniques,2013,41(2):7-12. [3] 王显光,李雄,林永学.页岩水平井用高性能油基钻井液研究与应用[J].石油钻探技术,2013,41(2):17-22. Wang Xianguang,Li Xiong,Lin Yongxue.Research and application of high performance oil base drilling fluid for shale horizontal wells[J].Petroleum Drilling Techniques,2013,41(2):17-22. [4] 闫联国,周玉仓.彭页 HF-1 页岩气井水平段固井技术[J].石油钻探技术,2012,40(4):47-51. Yan Lianguo,Zhou Yucang.Horizontal well cementing technology of shale gas Well Pengye HF-1[J].Petroleum Drilling Techniques,2012,40(4):47-51. [5] 刘伟,陶谦,丁士东.页岩气水平井固井技术难点分析与对策[J].石油钻采工艺,2012,34(3):40-43. Liu Wei,Tao Qian,Ding Shidong.Difficulties and countermeasures for cementing technology of salle gas horizontal well[J].Oil Drilling Production Technology,2012,34(3):40-43. [6] 吴仕荣,邓传光,周开吉.空气钻井地层出水限定值的探讨[J].钻采工艺,2006,29(5):7-8. Wu Shirong,Deng Chuanguang,Zhou Kaiji.Research on limit of formation water discharge in air drilling[J].Drilling Production Technology,2006,29(5):7-8. [7] 卢运虎,陈勉,安生.页岩气井脆性页岩井壁裂缝扩展机理[J].石油钻探技术,2012,40(4):13-16. Lu Yunhu,Chen Mian,An Sheng.Brittle shale wellbore fracture propagation mechanism[J].Petroleum Drilling Techniques,2012,40(4):13-16. [8] Sakmar S L.Shale gas development in North America: an overview of the regulatory and environmental challenges facing the industry[R].SPE 144279,2011.
[9] Aaron Padilla.Social responsibility management systems:elevating performance for shale gas development[R].SPE 156728,2012.
[10] Faraj B,Williams H,Addison G,et al.Gas potential of selected shale formations in the Western Canadian Sedimentary Basin[J].Canadian Resources,2004,10(1):21-25.
[11] Dong Z,Holditch S A, McVay D A,et al.Global unconventional gas resource assessments[R].SPE 148365,2011.
[12] Gupta J K,Zielonka M G,Albert R A,et al.Integrated methodology for optimizing development of unconventional gas resources[R].SPE 152224,2012.
计量
- 文章访问数: 4813
- HTML全文浏览量: 214
- PDF下载量: 4152
下载:
