本文選題：巖石 + 流體��； 參考：《西南石油大學(xué)學(xué)報(自然科學(xué)版)》2017年03期

【摘要】：針對石油工程中巖石側(cè)壓系數(shù)的預(yù)測問題,研究了介質(zhì)的水平應(yīng)力形成機(jī)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(yīng)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(yù)測方法。研究認(rèn)為由于介質(zhì)的結(jié)構(gòu)與流動性不同,水和土的水平應(yīng)力都是自重產(chǎn)生的,這與巖石的水平應(yīng)力產(chǎn)生機(jī)理完全不同,巖石的水平應(yīng)力主要是構(gòu)造作用產(chǎn)生的。由于構(gòu)造作用的強(qiáng)弱差異大,巖石的水平應(yīng)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(shí)測地應(yīng)力得到的,其預(yù)測結(jié)果并沒有實(shí)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