石油学报 ›› 2008, Vol. 29 ›› Issue (4): 601-604.DOI: 10.7623/syxb200804024

• 石油工程 • 上一篇    下一篇

高含硫地质环境钻井硫化氢气侵规律研究

石晓兵1, 甘一风2, 钟水清1,3, 熊继有1, 张仕强4   

  1. 1. 西南石油大学油气藏地质及开发工程国家重点实验室, 四川成都, 610500;
    2. 中国石油新疆石油公司勘探开发研究院, 新疆克拉玛依, 834000;
    3. 四川石油管理局, 四川成都, 610051;
    4. 中国石化西南分公司川西采输处, 四川德阳, 618000
  • 收稿日期:2007-10-07 修回日期:2007-12-14 出版日期:2008-07-25 发布日期:2010-05-21
  • 作者简介:石晓兵,男,1967年6月生,1999年获西南石油学院博士学位,现为西南石油大学副教授,主要从事石油工程方面的教学与科研工作.E-mail:shixbyy@163.com
  • 基金资助:
    国家自然科学基金项目(N0.90610013)资助.

Study on hydrogen sulfide gas cutting in high-sulfur geological environment

SHI Xiaobing1, GAN Yifeng2, ZHONG Shuiqing1,3, XIONG Jiyou1, ZHANG Shiqiang4   

  1. 1. State Key Laboratory for Geological and Reservoir Development Project, Southwest Petroleum University, Chengdu 610500, China;
    2. Research Institute of Petroleum Exploration and Development, PetroChina Xinjiang Company, Karamay 834000, China;
    3. Sichuan Petroleum Administration, Chengdu 610051, China;
    4. Department of Chuanxi Petroleum Development and Transportation, Sinopec Southwest Company, Deyang 618000, China
  • Received:2007-10-07 Revised:2007-12-14 Online:2008-07-25 Published:2010-05-21

摘要: 针对硫化氢的特殊物性,研究了硫化氢组分、气体偏差因子、硫化氢黏度等重要的物性参数对气侵两相流的影响.运用气液相流的原理和方法,建立了硫化氢气侵时环空气液两相流流动模型,研究了硫化氢气侵时井底压力和井筒压力的特征及变化规律,并用实例对理论模型进行了验证,进而分析了气侵时钻井液密度、钻井液黏度、井口回压、井底气侵速率等重要参数对井底压力的影响规律.在确定钻井液附加密度时,应充分考虑硫化氢气侵对井底压力和井筒动压的影响规律,其结果会更加合理.

关键词: 高含硫地层, 钻井, 硫化氢, 气侵, 气-液两相流, 流动模型, 压力控制

Abstract: The effects of the physical properties of H2S,including composition of H2S,gas error factor and viscosity of H2S on gas-inversion two-phase flow were investigated.The model for gas-liquid two-phase flow was developed by applying the two-phase flow principle while H2S cuts the borehole.The property and changing law of the pressure at bottom hole and borehole were investigated.The model was applied to a real well case.The effects of some parameters,including the density and viscosity of drilling fluid,back pressure at wellhead and the rate of gas cutting at bottom hole,on the pressure of bottom hole were analyzed.The affecting of H2S cutting on the pressure of bottom hole and borehole should be considered when the density of drilling fluid is added,which brings a more reasonable result.

Key words: high-sulfur, formation, drilling hydrogen sulfide(H2S), gas cutting, gas-fluid two-phase flow, fluid flow model, pressure controlling

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