borehole casing

Early diagnosis for the stress concentration zone of borehole casing pipe by metal magnetic memory and wavelet transform

磁记忆与小波变换相结合的井下套管应力集中早期诊断方法

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Forecast the malfunction of borehole casing by magnetism memory technology

用磁记忆检测技术预测井下套管故障

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On the basis of the principle of casing actual strength more than salt bed creep collapse load in non-uniform load, the safety in borehole casing ability be ensured.

按照非均布载荷下套管实际强度大于盐岩层蠕变外挤载荷的原则，确保井内套管安全。

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Signal processing for metal magnetic memory testing of borehole casing based on wavelet transform

基于小波变换的套管金属磁记忆检测信号处理

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The system collects the magnetic memory signals liberated from the stress concentration zone of the in-use borehole casing pipe, judges fast and correctly the state of the zone.

该检测系统可根据在役套管的应力集中区所产生的磁记忆信号快速、准确地判断套管的应力集中区状况。

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Research on Metal Magnetic Memory Forecasts the Malfunction of Borehole Casing Based on Wavelet Singularity Detection

金属磁记忆预测套管故障的小波奇异性检测研究

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Surface borehole diameter and casing diameter as well as characteristics of filling materials can be achieved by calculating the horizontal movement and vertical stain at different depths.

通过计算地表钻孔在不同深度的水平位移和垂直变形可确定钻孔直径和所需安设套管的直径及套管外充填材料的性能。

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The magnetic memory technique was used to develop a detection system for the borehole casing pipe.

利用铁磁材料的磁记忆性,研制出了井下在役套管检测系统.

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Application of Oil Industry Special Purposed Floating Hoop and Shoe on Coalmine Service Borehole Casing Lowering and Consolidation

石油专用浮箍浮鞋在煤矿服务钻孔下管和固井中的应用

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Study on systems of forecast the malfunction of borehole casing by metal magnetic memory technique

金属磁记忆预测井下套管故障系统的研究

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