| 水力脉冲空化射流欠平衡钻井提高钻速技术 |
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| 引用本文： | 史怀忠,李根生,王学杰,沈忠厚,牛继磊,黄中伟,廖华林. 水力脉冲空化射流欠平衡钻井提高钻速技术[J]. 石油勘探与开发, 2010, 37(1): 111-115 |
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| 作者姓名： | 史怀忠 李根生 王学杰 沈忠厚 牛继磊 黄中伟 廖华林 |
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| 作者单位： | 1. 中国石油大学(北京)油气资源与探测国家重点实验室
2. 中国石油大学(华东)石油工程学院 |
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| 基金项目： | 国家重点基础研究发展计划项目(973计划) |
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| 摘 要： | 研究了水力脉冲空化射流欠平衡钻井破岩、清岩、提高机械钻速机理,并在准噶尔盆地金龙3井进行了水力脉冲空化射流欠平衡钻井现场试验。研究结果表明,井底欠平衡状态下产生水力脉冲、空化冲蚀和局部负压效应,可改善井底流场,降低岩石的破碎强度,促进井底已破碎岩石及时脱离井底,减少反复切削及压持效应,从而达到提高机械钻速的目的。金龙3井相邻井段机械钻速对比表明,在钻井参数基本不变的情况下,采用牙轮钻头+水力脉冲空化射流发生器欠平衡钻井方式钻2 590~2 655 m井段和采用牙轮钻头+水力脉冲空化射流发生器+螺杆钻具欠平衡钻井方式钻2 655~2 759 m井段的机械钻速分别比采用欠平衡钻井方式钻2 485~2 590 m井段的平均机械钻速提高19.8%和87.1%。图5表2参14
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| 关 键 词： | 水力脉冲 空化射流 欠平衡钻井 机械钻速 |
Improving the rate of penetration by hydraulic pulsating-cavitating water jet under-balance pressure drilling |
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| Shi Huaizhong,Li Gensheng,Wang Xuejie,Shen Zhonghou,Niu Jilei,Huang Zhongwei and Liao Hualin. Improving the rate of penetration by hydraulic pulsating-cavitating water jet under-balance pressure drilling[J]. Petroleum Exploration and Development, 2010, 37(1): 111-115 |
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| Authors: | Shi Huaizhong Li Gensheng Wang Xuejie Shen Zhonghou Niu Jilei Huang Zhongwei Liao Hualin |
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| Affiliation: | Shi Huaizhong1,Li Gensheng1,Wang Xuejie1,Shen Zhonghou1,Niu Jilei2,Huang Zhongwei1,Liao Hualin2(1.State Key Laboratory of Petroleum Resource , Prospecting,China University of Petroleum,Beijing 102249,China,2.College of Petroleum Engineering,Dongying 257061,China) |
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| Abstract: | This paper studies the mechanism of rock breaking and clearing and improving the rate of penetration(ROP) in hydraulic pulsating-cavitating water jet underbalance pressure drilling.Field experiment in Well Jinlong 3,Junggar Basin demonstrates that the hydraulic pulsating-cavitating water jet underbalance pressure drilling can generate hydraulic pulse,cavitating erosion and local negative pressure effect.It can more effectively change bottom flow field,decrease rock breaking strength,promote bottomhole rock ... |
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| Keywords: | hydraulic pulse cavitating water jet underbalanced drilling penetration rate |
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