本文選題：巖石 + 流體　； 參考：《西南石油大學學報(自然科學版)》2017年03期

【摘要】：針對石油工程中巖石側(cè)壓系數(shù)的預測問題,研究了介質(zhì)的水平應力形成機理與側(cè)壓系數(shù)的計算方法,分析了水、土與巖石3種介質(zhì)水平應力的區(qū)別與側(cè)壓系數(shù)的工程意義,并探討了巖石的側(cè)壓系數(shù)預測方法。研究認為由于介質(zhì)的結構與流動性不同,水和土的水平應力都是自重產(chǎn)生的,這與巖石的水平應力產(chǎn)生機理完全不同,巖石的水平應力主要是構造作用產(chǎn)生的。由于構造作用的強弱差異大,巖石的水平應力變化范圍較大,側(cè)壓系數(shù)在-∞~∞,因此巖石的側(cè)壓系數(shù)不能沿用土介質(zhì)側(cè)壓系數(shù)的計算方法。同時,巖石的側(cè)壓系數(shù)是通過實測地應力得到的,其預測結果并沒有實際意義。
[Abstract]:In view of the prediction problem of rock lateral pressure coefficient in petroleum engineering, the formation mechanism of horizontal stress and the calculation method of lateral pressure coefficient of medium are studied, and the difference of horizontal stress between water, soil and rock and the engineering significance of lateral pressure coefficient are analyzed. The prediction method of rock lateral pressure coefficient is also discussed. It is considered that the horizontal stress of water and soil is generated by self-weight because of the different structure and fluidity of the medium, which is completely different from the mechanism of horizontal stress in rock, and the horizontal stress of rock is mainly caused by tectonism. The lateral pressure coefficient of rock can not be calculated by the calculation method of soil medium because of the great difference between tectonic action and horizontal stress, and the lateral pressure coefficient is in the range of-鈭，

本文編號：1952146