Bayes Inference for Drilling Mud Pump Piston Life

Zi Mei Su; Yong Quan Sun; Hui Juan Yuan; Jian Ying Guo

doi:10.4028/www.scientific.net/AMM.295-298.3142

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 295-298Bayes Inference for Drilling Mud Pump Piston Life

Bayes Inference for Drilling Mud Pump Piston Life

Abstract:

Bayes confidence limit for domestic drilling mud pump piston life was given. Maximum likelihood estimation of mud pump piston life was discussed under Weibull life distribution. For further, failure mechanism of the same batch mud pump piston was studied, the shape parameter of Weibull distribution was considered to be constant. Bayes point estimation and confidence limit of distribution parameters and mud pump piston life were given, according to field life data collected from Daqing oil field, under non-information priori and conjugate prior information for scale parameter. Example shows the effectiveness of the proposed method.

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Periodical:

Applied Mechanics and Materials (Volumes 295-298)

Pages:

3142-3147

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.295-298.3142

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Online since:

February 2013

Authors:

Zi Mei Su, Yong Quan Sun, Hui Juan Yuan, Jian Ying Guo

Keywords:

Bayes Inference, Confidence Limit, Mud Pump Piston, Weibull Distribution

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