[1]刘洪涛,沈新普,王克林,等.含伸缩管的超深高温高压气井完井测试管柱三维力学行为分析[J].石油管材与仪器,2019,5(05):59-66.[doi:10.19459/j.cnki.61-1500/te.2019.05.014]
 LIU Hongtao,SHEN Xinpu,WANG Kelin,et al.3D Mechanical Analysis on Completion Testing Tubing String with Expansion Pipe Section for Extradeep HPHT Wells[J].Petroleum Tubular Goods & Instruments,2019,5(05):59-66.[doi:10.19459/j.cnki.61-1500/te.2019.05.014]
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含伸缩管的超深高温高压气井完井测试管柱三维力学行为分析
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《石油管材与仪器》[ISSN:2096-0077/CN:61-1500/TE]

卷:
5
期数:
2019年05期
页码:
59-66
栏目:
TEC 2019国际会议专栏
出版日期:
2019-10-20

文章信息/Info

Title:
3D Mechanical Analysis on Completion Testing Tubing String with Expansion Pipe Section for Extradeep HPHT Wells
文章编号:
2096-0077(2019)05--0059-08
作者:
刘洪涛1沈新普2王克林1沈国阳2刘爽1
1.中国石油塔里木油田分公司 新疆 库尔勒 841000; 2.中国石油大学(华东) 山东 青岛 266580
Author(s):
LIU Hongtao1 SHEN Xinpu2 WANG Kelin1 SHEN Guoyang2 LIU Shuang1
1.Tarim Oil Branch PetroChina,Korla, Xinjiang 841000, China;2.China Petroleum University (Huadong), Qingdao, Shandong 266580, China
关键词:
完井管柱测试高温高压塑性变形屈曲数值模拟伸缩管
Keywords:
completion tubing testing high pressure high temperature plastic deformation buckling numerical simulation expansion pipe
分类号:
TE257
DOI:
10.19459/j.cnki.61-1500/te.2019.05.014
文献标志码:
A
摘要:
提出了具有伸缩管的完井测试管柱三维有限元力学行为分析数值计算流程,并将其成功用于塔里木油田MJ4井完井测试管柱塑性变形分析。建立的管柱三维有限元模型中考虑了闭合距偏离、并考虑了油管-套管间摩擦接触。分析中考虑了坐封、压裂、放喷三种不同的施工阶段下管柱变形的情况。给出了上述模型在不同压力及温度载荷下的管柱变形及应力分布的数值解,主要包括:1)管柱变形沿全长的分布;2)管柱全长轴向力及Mises等效应力分布;3)伸缩管以下管柱段的变形、应力的大小与分布、及该部分管柱与套管之间的接触力和摩擦力的大小及分布。根据
Abstract:
Workflow for numerical solution to mechanical behavior of completion testing tubing system with 3D finite element method has been proposed. The workflow proposed here was applied to analysis on plastic deformation of completion testing tubular string. 3D finite element model was built for analysis of mechanical behavior of the tubular system. Factors of wellbore trajectory deviation and frictional contact between tube and casing are considered in the model. Loads of packer setting, hydraulic fracturing, and gas production are included. Numerical solutions of stress and displacement distribution along the tubing are presented. Principal results are:1) Displacement distribution along the whole length of tubing. 2) Distribution of axial stress and von Mises stress along the whole length of tubing. 3) Distribution of displacement and stress along the tubing section below expansion pipe, as well as frictional contact stress and frictional force in this section. With reference to the numerical results obtained, the following conclusions are derived:1) For the stages of packer setting, hydraulic fracturing, and gas production, inner pressure at location of expansion pipe will result in bigger value of axial stress than that in the case without expansion pipe. 2) Under the given working loads of pressure and temperature with regular structures as designed for MJ4 well, elastic buckling occurs within the tubing section below expansion pipe. 3) Poor quality of lower hydraulic anchorage of packer results in additional load to tubing, and consequently it is one of the major factors resulting in tubing′s plastic deformation.

参考文献/References:

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备注/Memo

备注/Memo:
第一作者简介:刘洪涛,男,1983年生,高级工程师,副院长,主要从事试油技术研究及管理工作。E-mail:liuhongtao-tlm@petrochina.com.cn
更新日期/Last Update: 2019-10-25