Abstract
In this paper, a creep test was carried out for simulating the creeping of the core of the mudstone under condition of deep formation subsurface conditions by MTS-810 test system, the creep rule and the characteristic parameters of the mudstone formation were obtained from the experiments. According to the test results, the finite element model for casings load calculation was established, and the calculation program was also written. With the program, the casing load of one western oil well was calculated in mudstone formation. The numerical simulation results show that the casing load has a relationship with phase angle θ and creep time, and the casing load is 10% greater than the stress in situ.
Published Version
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