连续循环阀钻井技术在番禺油田大位移井的应用

doi:10.11885/j.issn.1674-5086.2017.01.03.01

西南石油大学学报(自然科学版) ›› 2018, Vol. 40 ›› Issue (4): 90-96.DOI: 10.11885/j.issn.1674-5086.2017.01.03.01

连续循环阀钻井技术在番禺油田大位移井的应用

张杰¹, 王志伟², 马玲³

1. “油气藏地质及开发工程”国家重点实验室·西南石油大学, 四川成都 610500;
2. 中海石油(中国)有限公司深圳分公司, 广东深圳 518000;
3. 中石油青海油田分公司采油一厂, 青海海西州 816400

收稿日期:2017-01-03 出版日期:2018-08-01 发布日期:2018-08-01
通讯作者: 张杰,E-mail:swpivip@163.com
作者简介:张杰,1976年生,男,汉族,重庆开州人,教授,博士,主要从事海洋油气工程、油气井工程等方面的教学科研工作。E-mail:swpivip@163.com;王志伟,1989年生,男,汉族,河南周口人,工程师,主要从事海洋钻井研究。E-mail:wangzhiwei0517@163.com;马玲,1988年生,女,回族,宁夏同心人,助理工程师,主要从事油田生产管理工作。E-mail:malingqh@petrochina.com.cn
基金资助:
国家自然基金项目（51274168）；国家重点基础研究发展计划（2013CB228003）；西南石油大学青年科技创新团队（2015CXTD01）

Application of Continuous Circulation Drilling in Extended Reach Wells in the Panyu Oilfield

ZHANG Jie¹, WANG Zhiwei², MA Ling³

1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. CNOOC China Limited, Shenzhen Branch, Shenzhen, Guangdong 518000, China;
3. No.1 Oil Production Plant, Qinghai Oilfield Branch, PetroChina, Haixizhou, Qinghai 816400, China

Received:2017-01-03 Online:2018-08-01 Published:2018-08-01

摘要/Abstract

摘要： 番禺油田大位移井φ215.9 mm井段钻进过程中，面临井段深、稳斜段长、稳斜角度大、岩屑易堆积、钻遇断层、钻井液安全密度窗口急剧减小、全井段采用油基钻井液钻进、黏度高、静切力大等钻井技术问题。为此，引入连续循环阀钻井技术，分析了该技术在PY10-5-A1H井φ215.9 mm井段的应用效果。结果表明，全井段1 026 m当量循环密度波动值小于2.3%，井内循环压力稳定，扭矩波动平稳，平均机械钻速高达19.30 m/h，井眼清洁状况良好，减少不必要的循环划眼和短起下钻，缩短非钻进时间，提高钻井效率，安全平稳钻过断层，未发生任何漏垮卡等井下复杂情况。总结了现场应用中出现的切换循环通道瞬间对钻杆和水龙带的冲击、MWD信号传输受干扰等问题，提出了应对措施和改进方案。

关键词: 连续循环阀, 番禺油田, 大位移井, ECD控制, 井眼清洁

Abstract: During the drilling of φ215.9 mm extended reach wells in the Panyu Oilfield, technical difficulties are encountered, such as deep well sections, long inclined sections, large inclination angles, rock debris accumulation, faults, abrupt narrowing of the safety density windows of drilling fluids, employment of oil-based drilling fluids throughout sections, high viscosity, and large gel strength. To overcome these difficulties, continuous circulation drilling is introduced, and the application of this technique in the φ215.9 mm section of the PY10-5-A1H Well is evaluated. The results demonstrate that, when the fluctuations of the full-section(1 026 m) equivalent circulating density (ECD) are less than 2.3%, the circulation pressure within the well is stable and the torque fluctuations are steady. The average penetration rate reaches 19.30 m/h, and the hole is well cleaned. Unnecessary repeated reaming and short trips are reduced, and non-drilling time is shortened to improve drilling efficiency and ensure safe and smooth drilling through faults. No complicated downhole situations such as leakage, collapse, and blockage are observed. This paper summarizes the impacts to the drill pipes and hoses at the moment when the circulation channels are switched and problems such as the disrupted transmission of measurement while drilling signals during field application. Specific measurements and improvements are suggested.

Key words: continuous circulation valve, Panyu Oilfield, extended reach well, ECD control, hole cleaning

中图分类号:

TE52

张杰, 王志伟, 马玲. 连续循环阀钻井技术在番禺油田大位移井的应用[J]. 西南石油大学学报(自然科学版), 2018, 40(4): 90-96.

ZHANG Jie, WANG Zhiwei, MA Ling. Application of Continuous Circulation Drilling in Extended Reach Wells in the Panyu Oilfield[J]. 西南石油大学学报(自然科学版), 2018, 40(4): 90-96.

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连续循环阀钻井技术在番禺油田大位移井的应用

Application of Continuous Circulation Drilling in Extended Reach Wells in the Panyu Oilfield

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