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基于多孔介质理论的油井水泥石破坏准则

丁嘉迪 沈吉云 张硕 纪宏飞 王琳琳

丁嘉迪, 沈吉云, 张硕, 纪宏飞, 王琳琳. 基于多孔介质理论的油井水泥石破坏准则[J]. 钻井液与完井液, 2020, 37(6): 763-770. doi: 10.3969/j.issn.1001-5620.2020.06.015
引用本文: 丁嘉迪, 沈吉云, 张硕, 纪宏飞, 王琳琳. 基于多孔介质理论的油井水泥石破坏准则[J]. 钻井液与完井液, 2020, 37(6): 763-770. doi: 10.3969/j.issn.1001-5620.2020.06.015
DING Jiadi, SHEN Jiyun, ZHANG Shuo, JI Hongfei, WANG Linlin. A Failure Criterion of Oil Well Set Cement Based on Porous Media Theory[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(6): 763-770. doi: 10.3969/j.issn.1001-5620.2020.06.015
Citation: DING Jiadi, SHEN Jiyun, ZHANG Shuo, JI Hongfei, WANG Linlin. A Failure Criterion of Oil Well Set Cement Based on Porous Media Theory[J]. DRILLING FLUID & COMPLETION FLUID, 2020, 37(6): 763-770. doi: 10.3969/j.issn.1001-5620.2020.06.015

基于多孔介质理论的油井水泥石破坏准则

doi: 10.3969/j.issn.1001-5620.2020.06.015
基金项目: 

国家重大专项项目“深井超深井井筒安全钻井技术与装备”(2016ZX05020-003)

详细信息
    作者简介:

    丁嘉迪,1994年生,2020年毕业于中国石油大学(北京)获得硕士学位,现在从事固井方向研究工作。电话13910809346;E-mail:ding.jiadi@qq.com

    通讯作者:

    王琳琳,教授,1983年生,主要从事海洋油气工程方向的研究及教学工作。电话13241974064;E-mail:blasewanglinlin.wang@cup.edu.cn

  • 中图分类号: TE256.9

A Failure Criterion of Oil Well Set Cement Based on Porous Media Theory

  • 摘要: 水泥石是一种由水泥骨架和孔隙组成的多孔介质,井下水泥凝固水化后,孔隙中还会有自由水存在,并且与地层相通,所以水泥石力学行为会受到地层孔隙水压和外部载荷的影响。为进一步揭示油气井实际工况下水泥石的力学性能,引入多孔介质力学理论,对水泥石力学性能进行三轴力学实验研究,获得相关参数,从而确定了考虑孔隙水压的水泥石摩尔-库伦破坏准则。实验以嘉华油井水泥作为研究对象,通过改变围压、排水条件以及孔隙水压获得水泥石的各项力学参数。结果显示,孔隙水压是影响水泥石破坏强度的重要因素;不考虑多孔介质力学的水泥石摩尔-库伦准则模型为非线性;考虑多孔介质力学理论的水泥石摩尔-库伦包络线为线性并获得准则公式。

     

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出版历程
  • 收稿日期:  2020-09-15
  • 刊出日期:  2020-12-28

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