then the effect of the main factors on the strength of the casing, such as the thickness of the casing wall and the property of the stratum, was analyzed.
分析了套管壁厚及巖层特性等主要因素对套管强度的影响。
a novel forecasting model for compressor casing wall pressure based on phase space reconstruction and radial basis function network was established.
建立了基于相空间重构和径向基神经网络的压气机机匣静压的预测模型。
the results show that the natural fracture length and dip angle have great influence on the casing failure, and the increase of casing wall thickness could not reduce casing failure.
分析结果表明:天然裂缝长度和倾角对套损有较大影响,但增加套管壁厚不能缓解套损。
a log that uses the variations in amplitude of an acoustic signal traveling down the casing wall between a transmitter and receiver to determine the quality of cement bond on the exterior casing wall.
使声波信号沿着发射器和接收器之间的套管井壁传播时的幅度衰减确定套管外水泥胶结质量的声波测井方法。
the vortex breakdown results in the low-energy fluid accumulating on the casing wall spreads out remarkably, which has a large blockage effect on incoming flow.