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

基于小波變換的套管金屬磁記憶檢測信號處理

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.

該檢測系統可根據在役套管的應力集中區所產生的磁記憶信號快速、準確地判斷套管的應力集中區狀況。

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

磁記憶與小波變換相結合的井下套管應力集中早期診斷方法

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

石油專用浮箍浮鞋在煤礦服務鉆孔下管和固井中的應用

Forecast the malfunction of borehole casing by magnetism memory technology

用磁記憶檢測技術預測井下套管故障

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.

通過計算地表鉆孔在不同深度的水平位移和垂直變形可確定鉆孔直徑和所需安設套管的直徑及套管外充填材料的性能。

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

利用鐵磁材料的磁記憶性,研制出了井下在役套管檢測系統.

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.

按照非均布載荷下套管實際強度大于鹽巖層蠕變外擠載荷的原則，確保井內套管安全。

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

金屬磁記憶預測套管故障的小波奇異性檢測研究

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

金屬磁記憶預測井下套管故障系統的研究