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深水油气井环空带压预防弹性隔离液体系

郭永宾,  吴志明,  杨玉豪,  余意,  刘智勤

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文章导航 > 钻井液与完井液  > 2019 >  36(5): 654-658
郭永宾, 吴志明, 杨玉豪, 余意, 刘智勤. 深水油气井环空带压预防弹性隔离液体系[J]. 钻井液与完井液, 2019, 36(5): 654-658. doi: 10.3969/j.issn.1001-5620.2019.05.022
引用本文: 郭永宾, 吴志明, 杨玉豪, 余意, 刘智勤. 深水油气井环空带压预防弹性隔离液体系[J]. 钻井液与完井液, 2019, 36(5): 654-658. doi: 10.3969/j.issn.1001-5620.2019.05.022
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GUO Yongbin, WU Zhiming, YANG Yuhao, YU Yi, LIU Zhiqin. An Elastic Spacer for Preventing Trapped Pressure in Annulus of Deepwater Oil and GAs Wells[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(5): 654-658. doi: 10.3969/j.issn.1001-5620.2019.05.022
Citation: GUO Yongbin, WU Zhiming, YANG Yuhao, YU Yi, LIU Zhiqin. An Elastic Spacer for Preventing Trapped Pressure in Annulus of Deepwater Oil and GAs Wells[J]. DRILLING FLUID & COMPLETION FLUID, 2019, 36(5): 654-658. doi: 10.3969/j.issn.1001-5620.2019.05.022
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深水油气井环空带压预防弹性隔离液体系

doi: 10.3969/j.issn.1001-5620.2019.05.022

  • 中海石油(中国)有限公司湛江分公司, 广东湛江 524000

基金项目: 

国家科技重大专项课题"深水油气田开发钻完井工程关键技术研究及配套工艺"（2016ZX05028-001-09）

详细信息
    作者简介:

    郭永宾,高级工程师,毕业于中国石油大学(华东)油气井工程专业,现在主要从事海洋钻井工艺技术的研究与管理工作。电话(0759)3901898;E-mial:guoyb@cnooc.com.cn

  • 中图分类号: TE256.6

An Elastic Spacer for Preventing Trapped Pressure in Annulus of Deepwater Oil and GAs Wells

  • Zhanjiang Branch of CNOOC, Zhanjiang, Guangdong 524000

    摘要
  • 摘要: 深水油气开发过程中，套管圈闭环空内流体温度升高会引起环空带压的现象，严重时会挤毁或胀裂套管，给生产作业带来严重的安全隐患。为解决这一问题，室内研究了一套预防环空带压的弹性隔离液体系，并采用自制的"高温高压弹性流体评价仪"和"弹性材料往复压缩试验仪"对隔离液的性能进行评价。研发的弹性隔离液体系配方为：海水+0.4%悬浮剂HX+6%弹性剂+超细铁矿粉，密度在1.10~1.90 g/cm3内可调。评价结果表明：①该弹性隔离液体系具有高弹性、抗压缩性强的特点，弹性恢复率为100%；②在不同温度条件下能够稳定地保持弹性，缓解压力效果稳定；③与钻井液和水泥浆配伍性较好，不影响弹性隔离液和固井水泥浆施工作业。研发的弹性隔离液体系应用在深水油气井可以缓解和控制环空带压现象。

     

    Abstract: In deepwater oil and gas development, temperature rise in fluid trapped in the annulus between casing string and drill pipe causes an increase in the pressure trapped in the annulus, resulting in collapse or bursting of casing string which brings serious hidden risk to oil and gas production. To resolve this problem, an elastic spacer for preventing trapped pressure in annulus was developed and evaluated with a self-made "HTHP elastic fluid evaluation tester" and a "reciprocating compression tester for elastic materials". The composition of the elastic spacer is:sea water + 0.4% suspending agent + 6% elastic agent + ultra-fine iron ore powder. The density of the spacer is adjustable between 1.10 g/cm3 and 1.90 g/cm3. Laboratory evaluation of the spacer shows that:1) the elastic spacer has high elasticity and high compressive strength, and shows 100% elasticity. 2) the spacer retains its elasticity at different temperatures, effectively relieve accumulation of pressures. 3) the spacer has good compatibility with drilling fluids and cement slurries, and does not affect the use of the spacer and well cementing job. The spacer developed can be used to mitigate and control trapped pressure in annulus in deepwater drilling.

     

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    • 参考文献(15)
  • [1] LIU B,YANG J,ZHOU B,et al. Study of casing annulus pressure for deepwater drilling and completions[M].Society of Petroleum Engineers,2014.
    [2] TONI L,EVANS J,GRIFFITH J.Prediction of and effective preventative solution for annular fluid pressure buildup on subsea completed wells-case study[C]. SPE84270,2003.
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    HU Weijie,WANG Jianlong,ZHANG Weidong. Confined annular trap pressure prediction and release technology for deep water drilling[J].Sino-Global Energy, 2012,17(8):41-45.
    [8] BLOYS J B,GONZALEZ M E,LOFTON J,et al. Trapped annular pressure mitigation:trapped annular pressure-a spacer fluid that shrinks (update)[C]. SPE112872,2008.
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    [12] EZELL R,FONTENOT E S,ROBINSON E F,et al. High performance aqueous insulating packer fluid improved flow assurance and reduced annular pressure buildup in ultra deepwater wells[C].SPE135177,2010.
    [13] 吴龙飞. 可固化隔离液技术研究与应用[D]. 成都:西南石油大学,2016. WU Longfei. Research and application of curable spacer fluid technology[D].Chengdu:Southwest Petroleum University,2016.
    [14] 杨大足. 成膜隔离液体系的研究[D]. 青岛:中国石油大学(华东),2007. YANG Dazu.Study on membrane spacer fluid system[D]. Qingdao:China University of Petroleum,2007.
    [15] ABDALLA MOUSTAFA EZZAT,JEFFREY JAMES MILLER,RYAN EZELL,et al.High-performance water-based insulating packer fluids[C]. SPE109130, 2007.
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出版历程
  • 收稿日期:  2019-04-25
  • 刊出日期:  2019-10-30

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