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产油井套管变形断裂,造成油井的报废,这种现象影响了石油的生产。本文指出,由于开采石油,减低了含油层的孔隙压力,致使含油层被压缩,油层的压缩给固结在油层中的套管以一个纵向附加压力,当含油地层倾斜时,套管除受到纵向压力外,还受到一对横向水平剪力的作用。这种因油层压缩而产生的力,是造成套管变形的一种可能解释。
Oil well casing deformation fracture, resulting in oil wells scrapped, this phenomenon has affected the oil production. It is pointed out here that due to the exploitation of petroleum, the pore pressure of the oil-bearing formation is reduced so that the oil-bearing formation is compressed and the formation compression exerts a longitudinal additional pressure on the casing consolidated in the formation. When the oil-bearing formation is inclined, Pressure, but also by a pair of horizontal horizontal shear effect. This force due to the compression of the reservoir is a possible explanation for the deformation of the casing.