【摘要】 地层坍塌压力剖面的准确确定 ,对于井眼稳定和安全钻井至关重要。文章在建立了地层坍塌压力计算模型之后 ,着重研究了如何从测井信息中准确提取模型中所涉及的岩石力学参数。将该法应用到罗家寨构造LJ2井等多口井的测井资料精细解释处理中 ,计算出该井不同井深与不同层位地层坍塌压力及保持井壁稳定的泥浆密度。此结果应用到实际钻井中 ,效果良好 ,且实用性强 ,为该地区科学钻井提供了合理的泥浆密度设计依据。更多还原

【Abstract】 It’s very important to determine the formation collapsed pressure profile for bore hole stabilization and safe drilling The article focuses on studying how to accurately acquire rock mechanics parameters needed by the model from logging data after setting up the calculating model of formation collapsed pressure The method is applied to the fine interpretation and processing of wells LJ 2 and others logging data in Luojiazhai structure And the formation collapsed pressure and mud density that can keep bore stability are calculated for the different depths and sections of the wells The results calculated by the method are used to practical drilling and make good practice,and provide the basis for scientific drilling on the mud density design of the area更多还原