High-Temperature and Pressure Downhole Safety Valve Performance Envelope Curve Study

被引:3
|
作者
Yuan, Guohai [1 ]
Wang, Yonghong [1 ]
Fang, Yexin [1 ]
Ma, Rutao [1 ]
Ning, Kun [1 ]
Tang, Yang [2 ]
机构
[1] CNPC Engn Technol R&D Co Ltd, Beijing 102206, Peoples R China
[2] Southwest Petr Univ, Sch Mechatron Engn, Chengdu 610500, Peoples R China
关键词
high-temperature and pressure; downhole safety valve; mechanical properties; critical load; envelope curve; TOOL;
D O I
10.3390/pr11092525
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The introduction of downhole safety valve performance envelope curves can effectively prevent the failure of the downhole safety valves during field operations. The method of drawing the performance envelope curve of high-temperature and pressure downhole safety value was proposed based on the mechanical properties of the downhole safety valve. The numerical simulation method was used for the mechanical performance of the downhole safety valve, and the stress change law of the overall structure of the downhole safety valve under the ultimate load was obtained. The ultimate bearing state and the failure threshold stress value of the key components of the downhole safety valve were further determined. The performance envelope curve of the downhole safety valve was finally completed. The results of the study show that the downhole safety value envelope curve can be obtained by studying the mechanical properties of the downhole safety valve, and each section of the envelope curve corresponded to the cause of failure of the downhole safety valve, giving the theoretical calculation idea of the downhole safety valve performance envelope curve. This study provides theoretical and methodological support for the study of the performance envelope curves of the downhole safety valves, packers, and other complex working conditions of downhole tools and their application in the field.
引用
收藏
页数:15
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