石油学报 ›› 2020, Vol. 41 ›› Issue (3): 363-371.DOI: 10.7623/syxb202003010

• 石油工程 • 上一篇    下一篇

筛管压溃强度计算公式及适用性

孙宝江1,2, 彭玉丹1,2, 张伟国3, 赵艳玲1,2, 陈济颖4, 付光明1,2   

  1. 1. 中国石油大学(华东)非常规油气开发教育部重点实验室 山东青岛 266580;
    2. 中国石油大学(华东)石油工程学院海洋水下设备试验与检测技术国家工程实验室 山东青岛 266580;
    3. 中海石油(中国)有限公司深圳分公司 广东深圳 518000;
    4. 中国石油大学(华东)储运与建筑工程学院 山东青岛 266580
  • 收稿日期:2019-09-27 修回日期:2020-01-02 出版日期:2020-03-25 发布日期:2020-04-03
  • 通讯作者: 付光明,男,1984年9月生,2007年获西北工业大学学士学位,2015年获巴西里约热内卢联邦大学海洋工程专业博士学位,现为中国石油大学(华东)特任副教授,主要从事海洋油气工程、海洋石油装备等研究工作。Email:fu@upc.edu.cn
  • 作者简介:孙宝江,男,1963年11月生,1985年获华东石油学院学士学位,1999年获北京大学流体力学专业博士学位,现为中国石油大学(华东)教授,主要从事海洋油气工程、海洋石油装备、井控、多相流动等研究工作。Email:sunbj128@126.com
  • 基金资助:

    国家自然科学基金项目(No.51709269,No.51890914)、山东省自然科学基金项目(ZR2017BEE031)、国家重大科技专项(2016X05028-001-003)、中央高校基本科研专项资金(17CX02013A)和北京市重点实验室开放基金项目(BIPT2018003)资助。

Calculation formula of collapsing strength of screen casing and analysis of its applicability

Sun Baojiang1,2, Peng Yudan1,2, Zhang Weiguo3, Zhao Yanling1,2, Chen Jiying4, Fu Guangming1,2   

  1. 1. MOE Key Laboratory of Unconventional Oil & Gas Development, China University of Petroleum, Shandong Qingdao 266580, China;
    2. National Engineering Laboratory for Testing and Detection Technology of Subsea Equipment, School of Petroleum Engineering, China University of Petroleum, Shandong Qingdao 266580, China;
    3. Shenzhen Branch, of CNOOC China Limited, Guangdong Shenzhen 518000, China;
    4. College of Pipeline and Civil Engineering, China University of Petroleum, Shandong Qingdao 266580, China
  • Received:2019-09-27 Revised:2020-01-02 Online:2020-03-25 Published:2020-04-03

摘要:

针对筛管受地层中围压作用压溃失效缺乏通用计算分析模型的问题,利用ABAQUS软件建立了考虑初始椭圆度影响的平行布孔筛管有限元模型,研究外压作用下筛管的压溃行为。通过与文献中的实验结果对比表明,该有限元模型可准确地预测筛管的压溃强度。基于不同几何特征、材料特性以及布孔参数等筛管压溃强度数值模拟结果,建立了筛管压溃强度的简化计算公式。利用该计算公式,计算不同几何尺寸和材料属性的筛管压溃强度,与实验结果相比平均误差为7.0%。为了便于工程应用,分析了利用DNV,API等标准规范确定该公式中筛管对应的布孔前套管的静水压溃强度的可行性。结果表明,所建立的防砂筛管压溃强度计算公式可为实际工程中防砂筛管的强度预测与参数优化提供理论支持。

关键词: 防砂筛管, 有限元模型, 实验验证, 压溃强度, 计算公式

Abstract:

Aiming at the lack of a universal computational and analysis model for the collapsing failure of screen casing under confining pressure in the formation, a finite element model of screen casing with parallel hole arrangement considering the influence of the initial imperfection was established using ABAQUS software to investigate the collapsing behavior of screen casing under external pressure. The comparison with experimental results in the literature shows that this finite element model can accurately predict the collapsing strength of screen casing. Based on the numerical simulation results of collapsing strength of screen casing such as different geometric features, material properties, and hole parameters, a simplified calculation formula was developed for the collapsing strength of screen casing. Using this formula, the collapsing strength of screen casings with various geometric sizes and material properties is calculated out, and the average error is 7.0% as compared with the experimental results. In order to facilitate the engineering application, the paper analyzes the feasibility of determining the collapse pressure of the intact pipe in the formula by use of the standard specifications such as DNV and API. The results show that the calculation formula for the collapsing strength of sand control screen can provide a theoretical support for the strength prediction and parameter optimization of sand control screen in practical engineering.

Key words: sand screen casing, finite element model, experimental verification, collapsing strength, calculation formula

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