西南石油大学学报(自然科学版) ›› 2017, Vol. 39 ›› Issue (1): 148-154.DOI: 10.11885/j.issn.1674-5086.2015.08.04.03

• 石油与天然气工程 • 上一篇    下一篇

冀东油田大斜度大位移井井眼清洁技术

徐小峰1,2, 孙宁1, 孟英峰1, 宋巍2, 魏纳1   

  1. 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. 中国石油冀东油田钻采工艺研究院, 河北 唐山 063200
  • 收稿日期:2015-08-04 出版日期:2017-02-01 发布日期:2017-02-01
  • 通讯作者: 徐小峰,E-mail:1101625679@qq.com
  • 作者简介:徐小峰,1971年生,男,汉族,浙江龙游人,高级工程师,主要从事钻井新技术、新工艺攻关和设计研究。E-mail:1101625679@qq.com;孙宁,1949年生,男,汉族,教授级高级工程师,博士生导师,主要从事钻井工程研究。E-mail:2775469881@qq.com;孟英峰,1954年生,男,河北保定人,教授,博士生导师,主要从事钻井工艺研究与钻井设计工作。E-mail:1403543721@qq.com;宋巍,1985年生,男,工程师,硕士,主要从事钻井工艺研究与钻井设计工作。E-mail:2313005271@qq.com;魏纳,1980年生,男,副教授,博士,主要从事海洋天然气水合物绿色钻采技术、控压钻井、欠平衡钻井与气体钻井系列技术井下流动控制理论及实验评价法。E-mail:weina8081@163.com
  • 基金资助:
    国家科技重大专项(2011ZX05050)。

Well Cleaning Technology for Highly Deviated and Extended Reach Wells in Jidong Oilfield

XU Xiaofeng1,2, SUN Ning1, MENG Yingfeng1, SONG Wei2, WEI Na1   

  1. 1. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chendu, Sichuan 610500, China;
    2. Drilling Technology Research Institute, Jidong Oilfield, PetroChina, Tangshan, Hebei 063200, China
  • Received:2015-08-04 Online:2017-02-01 Published:2017-02-01

摘要: 随着冀东油田勘探开发的持续深入,大斜度大位移井比例逐年增加,钻井过程中井眼清洁问题凸现。针对大斜度大位移井的特点,通过室内模拟实验及岩屑颗粒的受力特征探讨了岩屑床成因及岩屑运移规律。并基于水力学计算模型优化设计水力参数,应用CFD仿真模拟岩屑床清除钻杆周围流体的流动特性,评价优选钻井液材料维护钻井液性能,同时采取井眼清洁实时监测、高效携岩剂等工艺,从设计到施工全面提高井眼净化水平,形成了一套改善大斜度大位移井井眼流动条件的配套技术措施,为大位移井的安全施工提供了技术支持。现场应用结果表明,后续施工的大斜度大位移井极少发生井眼清洁不好导致的憋钻卡钻等复杂情况。

关键词: 冀东油田, 大斜度大位移井, 井眼清洁, 岩屑床, 配套工艺

Abstract: With progress in exploration and development of the Jidong oilfield, the number of highly deviated and extended reach wells is increasing year-after-year, thereby leading to the problem of well cleaning. In accordance with the characteristics of highly deviated and extended reach wells, we analyzed the causes of cutting bed and cutting transport laws, and optimized hydraulic parameters based on the hydraulic calculation mode. We simulated flow characteristics of the fluid around EHCDP by means of computational fluid dynamics(CFD), and evaluated drilling fluid materials to maintain drilling fluid properties. Taking real-time well cleaning monitoring and high efficiency drilling fluid materials into consideration, we improved the level of well cleaning from design to drilling. In addition, we formed a set of technical measures for improving flow condition of wellbores of highly deviated wells, which provides technical support for safe drilling. Application of improved technical measures to highly deviated wells shows that problems, such as bit freezing, caused by inadequate hole cleaning rarely occur during construction.

Key words: Jidong Oilfield, highly deviated and extended reach well, hole cleaning, cutting bed, matching technical measures

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