Application of ANSYS/PDS in reliability analysis of Formation-Cement-Casing

Author

Zhichuan Guan ; Kai Wei ; Hualin Liao ; Yucai Shi

Author_Institution

Coll. of Pet. Eng., China Univ. of Pet. (East China), Qingdao, China

fYear

2011

fDate

15-17 July 2011

Firstpage

1977

Lastpage

1980

Abstract

Based on the finite element theory, Probabilistic finite element method would be able to analyze the elastic response of parameters´ uncertainty to model. The assembly of Formation-Cement-Casing in complex conditions was analyzed using ANSYS PDS technique; the probabilistic finite element method was built up for the assembly of Formation-Cement-Casing. This method could be able to consider the uncertainty factors of complex formation and cement, as well as the random factors of casing strength. In accordance with the case study, the effect of assembly´s uncertainty factors on casing reliability was analyzed. The casing reliability was calculated under the influence of random factors.

Keywords

assembling; cements (building materials); drilling (geotechnical); elasticity; finite element analysis; mining industry; probability; random processes; reliability; uncertain systems; ANSYS PDS technique; assembly uncertainty factors; casing reliability; casing strength; complex cement; complex formation; elastic response; finite element theory; formation-cement-casing; parameters uncertainty; probabilistic finite element method; random factors; reliability analysis; Finite element methods; Input variables; Probability; Reliability theory; Sensitivity analysis; Stress; ANSYS/PDS; Casing reliability; Probability finite element; Sensitivity analysis; Uncertainty of formation;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5987357

Filename

5987357