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固井过程中井壁虚泥饼的可冲刷性研究

袁海平,  王兆会,  高宝奎,  任锐

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文章导航 > 钻井液与完井液  > 2015 >  32(2): 67-71
袁海平, 王兆会, 高宝奎, 任锐. 固井过程中井壁虚泥饼的可冲刷性研究[J]. 钻井液与完井液, 2015, 32(2): 67-71. doi: 10.3969/j.issn.1001-5620.2015.02.018
引用本文: 袁海平, 王兆会, 高宝奎, 任锐. 固井过程中井壁虚泥饼的可冲刷性研究[J]. 钻井液与完井液, 2015, 32(2): 67-71. doi: 10.3969/j.issn.1001-5620.2015.02.018
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YUAN Haiping, WANG Zhaohui, GAO Baokui, REN Rui. Erodability of False Filter Cake on Borehole Wall During Well Cementing[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(2): 67-71. doi: 10.3969/j.issn.1001-5620.2015.02.018
Citation: YUAN Haiping, WANG Zhaohui, GAO Baokui, REN Rui. Erodability of False Filter Cake on Borehole Wall During Well Cementing[J]. DRILLING FLUID & COMPLETION FLUID, 2015, 32(2): 67-71. doi: 10.3969/j.issn.1001-5620.2015.02.018
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固井过程中井壁虚泥饼的可冲刷性研究

doi: 10.3969/j.issn.1001-5620.2015.02.018
  • 1.

    中国石油集团钻井工程技术研究院, 北京

  • 2. 中国石油大学(北京), 北京

基金项目: 中国石油集团"十二五"重大科技攻关项目"特殊工艺钻完井装备与工具开发"(2011B-4308)及国家科技重大专项"复杂地质条件下深井钻井液与高温高压固井技术研究"(2011ZX05021-004)的部分研究内容。
详细信息
    作者简介:

    袁海平,在读硕士研究生,现在主要从事固井工艺及工具研究工作。地址:北京市昌平区沙河镇西沙屯桥西中石油创新基地A34区A座固井完井所;邮政编码102206;电话18810462889;E-mail:haipingspace@126.com。

  • 中图分类号: TE256.9

Erodability of False Filter Cake on Borehole Wall During Well Cementing

  • Department of Well Cementing and Well Completion, Building A of Block A34, Innovation Base of PetroChina, West of Xishatun Bridge, Shahe Town, Changping District, Beijing 102206, China

    摘要
  • 摘要: 井壁泥饼的存在对固井质量的影响很大,往往会造成水泥环第二界面胶结变差,引起油气水窜,破坏井筒密封完整性。从流体的剪切应力出发,分析了水泥浆在偏心环空下产生的壁面剪应力大小。并利用水利工程中河流泥沙起动理论,分析了要冲刷掉泥饼需要的临界起动剪应力。最后通过比较环空各处2个力的大小,确定环空泥饼的可冲刷性。能够清晰反映固井过程中环空每个周相角下和整个环空的泥饼可冲刷性。研究表明,泥饼颗粒和厚度对泥饼可冲刷性影响很大,套管偏心也会对其产生影响。

     

    Abstract: False filter cake on borehole wall has great influence on the job quality of well cementing, often causing the cementation of the interface between cement sheath and borehole wall to become deteriorated, and resulting in fluid channeling. The shear stress on the borehole wall caused by cement slurry in eccentric annular space is analyzed. With the help of river sediment flow dynamics in hydraulic engineering, the critical starting shear stress necessary for the removal of filter cake is calculated. By comparing these two shear stresses in annular space, the erodability of false filter cake in the whole annular space can be determined. It is shown that the particle size distribution and the thickness of filter cake greatly affect the erodability of the filter cake, and the eccentricity of casing string also plays a role in this aspect.

     

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    • 参考文献(10)
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  • 收稿日期:  2014-12-05
  • 刊出日期:  2015-03-31

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