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SIMULATION ON CREEP OF SALT FORMATIONS
BY VOLUME-CONTROL METHOD |
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Abstract The depth of salt formations in Zhongyuan Oilfield is 50～200 m. The salt formations will generate a non-uniform external squeeze stress during their creep deformation and the casing pipes may be damaged. Volume-control method is employed in the 3D numerical simulation of actual formation condition. Creep velocity，displacement and the distribution of horizontal squeeze stress on the casing pipe are obtained. The results are useful for adjustment of drilling parameters，design of casing string and prevention of casing damage.
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Received: 24 December 2003
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MAO Yuting1, 2, HE Manchao1, 2, LIU Fangzhou3, BAI Xing4, YANG Xiaojie1, 2, TAO Zhigang1, 2*. Development and application of a large-scale physical model system for tunnel creep testing[J]. , 2026, 45(6): 1627-1638. |
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