A deep earth load-bearing detection cable

Abstract

The invention discloses a deep earth bearing detection cable. The invention comprises a triangular skeleton, a plurality of cable core units are arranged in the triangular skeleton, and the cable coreunit comprises copper strands, an insulating layer and an inner shielding layer arranged in order from the inside to the outside. A water-proof layer is filled between the cable core unit and the cable core unit and between the cable core unit and the triangular skeleton, and an outer shielding layer and an armor layer are sleeved on the outer ring of the triangular skeleton in order. The three end corners of the triangular skeleton are all provided with semi-elliptical cushions, which are made of polyurethane material, and the three semi-elliptical cushions are end-to-end connected and located between the triangular skeleton and the outer shielding layer, and a silicon rubber elastic layer is also arranged between the semi-elliptical cushion and the outer shielding layer. When the invention is extruded in the use process, the invention will produce certain elastic deformation to buffer the extruded force; At that same time, the triangular skeleton can effectively prevent the cable core unit from bee extruded, and the invention has strong extrusion resistance and long service life.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a deep earth load-bearing detection cable. Background technique [0002] The load-bearing detection cable is used as the connection line for downhole instrument measurement. While transmitting signals, it also has the function of carrying the weight of the cable itself and the detection instrument. In the past decade, an important progress in international geosciences has been the recognition of the close relationship between the dynamic processes of the deep Earth (abbreviated as "deep earth") and the surface-near-surface geological processes. More and more evidence shows that the phenomenon seen on the earth's surface is rooted in the deep earth, and it is the geodynamic process of the exchange of matter and energy in the deep earth that causes landform changes on the earth's surface and natural disasters such as earthquakes and landslides. Therefore, In-depth detection uncover...

AI Technical Summary

Problems solved by technology

In the process of deep exploration of the earth, the cable will inevitably encounter the situation of being squeezed. However, most of the existing cables have poor extrusion resistance, and the core of the cable is easily squeezed, deformed or even broken. , and whether the cable is extruded or broken will seriously affect the signal transmission of the cable

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