Stress Conversion Coefficients of Loads Crucial to Well Bore Safety

Abstract:

During oil and gas development, high pressure, high temperature and non-uniform earth stress increase the complexity of stresses in well bore which is composed of casing, cement sheath and formation. In order to obtain well bore stresses in hostile conditions, a new model is established with cement sheath and formation are treated as different materials. To predict well bore stresses rapidly, stress conversion coefficients are obtained that may change loads into stresses at key points conveniently.

• Periodical: Advanced Materials Research (Volumes 622-623)
• Pages: 1606-1610
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.622-623.1606
• Online since: December 2012
• Authors: Bao Kui Gao, Xuan Zhuo Han, Hong Qiang Zhang
• Keywords: Casing, Cement Sheath, Earth Stress, Thermal Stress

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