在轴向载荷和介质的物理化学作用下,封隔器胶筒在井内受到各方面的压挤。这就使橡胶松弛,并产生很大的残余变形(鼓包),出现裂缝和直径变大等现象。 对阿塞拜疆石油联合企业54口井中报废的76只封隔器的现场研究表明,变形基本上发生在胶筒边缘应力集中的部位(在轴向载荷着力的一边)。鉴于这种破坏的规律性,有必要研 In the axial load and the physical and chemical effects of the media, the packer cartridge is squeezed in all directions in the well. This relaxes the rubber and produces a large residual deformation (bulging), resulting in cracks and larger diameters. A field study of 76 packers scrapped in 54 wells at Azerbaijan’s oil conglomerate showed that deformation occurred essentially at the stress concentration points on the edge of the cartridge (on the side where the axial load is exerted). In view of the regularity of this destruction, it is necessary to study