Structural design method on elastic-plastic of oil perforating guns

Author

Xiaogang, Dong ; Shan, Cao ; Rui, Xu ; Lina, Cao ; Xiuqing, Han

Author_Institution

Changchun Univ. of Technol., Changchun, China

Volume

3

fYear

2010

fDate

24-26 Aug. 2010

Firstpage

81

Lastpage

83

Abstract

A structural design method on elastic-plastic strength analysis of perforating guns of oil and gas wells was developed in this paper. The current engineering Finite Element Method (FEM) software was used for the analysis. Gun 102 (with 102mm OD), made of alloy steel 30CrMo double-treated with 8mm wall thickness was chosen to analyze actually with this method. Considerable plastic deformation accumulates during normal working load. And the plastic deformation still continues till the load drops to some level lower than the maximum after the maximum load, which is shown by the plastic deformation history diagram. It is feasible to design the thickness of the wall of the perforating gun based on this structural design method by elastic-plastic analysis. As a result, reducing accidents of seizing-up gun can come true.

Keywords

alloy steel; design engineering; elastoplasticity; finite element analysis; oil drilling; plastic deformation; structural engineering; FEM; Gun 102; alloy steel 30CrMo; elastic-plastic strength analysis; finite element method; gas well; oil perforating gun; plastic deformation; structural design; wall thickness; elastic-plastic strength analysis; finite element method; perforating; perforating gun; structure design;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer, Mechatronics, Control and Electronic Engineering (CMCE), 2010 International Conference on

Conference_Location

Changchun

Print_ISBN

978-1-4244-7957-3

Type

conf

DOI

10.1109/CMCE.2010.5610395

Filename

5610395