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库车山前超深超高压盐水层安全钻井技术探索

周健 贾红军 刘永旺 李卫东 邓强 杨艳明

周健, 贾红军, 刘永旺, 李卫东, 邓强, 杨艳明. 库车山前超深超高压盐水层安全钻井技术探索[J]. 钻井液与完井液, 2017, 34(1): 54-59. doi: 10.3969/j.issn.1001-5620.2017.01.010
引用本文: 周健, 贾红军, 刘永旺, 李卫东, 邓强, 杨艳明. 库车山前超深超高压盐水层安全钻井技术探索[J]. 钻井液与完井液, 2017, 34(1): 54-59. doi: 10.3969/j.issn.1001-5620.2017.01.010
ZHOU Jian, JIA Hongjun, LIU Yongwang, LI Weidong, DENG Qiang, YANG Yanming. Research on Safe Drilling Technology for Ultra Deep Ultrahigh Pressure Saltwater Zones in Piedmont Area, Kuche[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(1): 54-59. doi: 10.3969/j.issn.1001-5620.2017.01.010
Citation: ZHOU Jian, JIA Hongjun, LIU Yongwang, LI Weidong, DENG Qiang, YANG Yanming. Research on Safe Drilling Technology for Ultra Deep Ultrahigh Pressure Saltwater Zones in Piedmont Area, Kuche[J]. DRILLING FLUID & COMPLETION FLUID, 2017, 34(1): 54-59. doi: 10.3969/j.issn.1001-5620.2017.01.010

库车山前超深超高压盐水层安全钻井技术探索

doi: 10.3969/j.issn.1001-5620.2017.01.010
详细信息
    作者简介:

    周健,1983年生,毕业于成都理工大学石油工程专业,现在塔里木油田公司勘探事业部从事库车山前钻完井生产管理工作。电话15276261572;E-mail:272653971@qq.com。

  • 中图分类号: TE254.3

Research on Safe Drilling Technology for Ultra Deep Ultrahigh Pressure Saltwater Zones in Piedmont Area, Kuche

  • 摘要: 库车山前深部巨厚盐膏层地质特征复杂,层间超高压盐水普遍发育,纵横向规律性差,地层压力变化大,预测难度高。盐膏层钻井过程中超高压盐水侵入井筒后,钻井液性能恶化,导致喷、漏、卡等复杂事故频发,严重影响安全快速钻井。结合超高压盐水层钻井特征,通过分析超高压盐水赋存的圈闭特点及实钻情况,在钻井液的盐水污染容量限实验模拟和评价的基础上,开展了超高压盐水层控压排水技术的探索与实践,形成了控压排水配套新技术,通过控制节流阀调节井口回压和钻井液排量等手段,让地层盐水按一定比例均匀侵入到环空钻井液中,单次放水量不超过环空钻井液量的10%,多次放出盐水,降低高压盐水层的地层压力系数。解决了库车山前超深超高压盐水层安全钻井难题。现场试验表明,采取合理的控压排水方法能够降低盐水层的压力,在溢流与井漏的矛盾中找到压力平衡点,有利于井控安全的井筒状态。

     

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出版历程
  • 收稿日期:  2016-09-05
  • 刊出日期:  2017-01-31

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