Numerical Simulation Analysis on the Casing Strength under High pressure gas injection and production

DOI

10.2991/iiicec-15.2015.48How to use a DOI?

Keywords

high pressure; casing; strength; numerical simulation

Abstract

The statics mechanic model of the casing-cement-formation is established in this paper. Effects of formation and cement characteristics on casing strength are studied under injection-production condition. The examples show that the maximum stress occurs in the internal wall of the casing, along the orientation of minimum horizontal stress. The casing maximum strength increase with non-uniform in-situ stress coefficient and formation poisson ratio, whereas it decrease with formation elastic modulus. However, The casing maximum strength is equidirectional with the increase of cement elastic modulus and poisson ratio, whereas it decreases with cement elastic modulus ,poisson ratio and cement thickness , they have only minor impacts on casing maximum strength when they are more than 30GPa ,0.3 and 30mm respectively.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Baohui Wang
AU  - Xiangzhen Yan
AU  - Xiujuan Yang
PY  - 2015/03
DA  - 2015/03
TI  - Numerical Simulation Analysis on the Casing Strength under High pressure gas injection and production
BT  - Proceedings of the 2015 International Industrial Informatics and Computer Engineering Conference
PB  - Atlantis Press
SP  - 200
EP  - 203
SN  - 2352-538X
UR  - https://doi.org/10.2991/iiicec-15.2015.48
DO  - 10.2991/iiicec-15.2015.48
ID  - Wang2015/03
ER  -