High-temperature cable for high-strength bearing detection

Abstract

A high strength bearing detection high temperature cable, belongs to the cable technical field, characterized by being provided with a 1+6 stranding reinforce steel core, a double layer reverse outward armour steel wire and a plurality of insulated cores evenly and closely wound aroud the 1+6 stranding reinforce steel core to compose the cable core. Stuffed inorganic ropes are provided in the cable core, and a special macromolecule material sheath is coated on the cable core; the double layer reverse outward armour steel wire is wrapped at the cirumferential of the sheath; the surface of the steel wire armour is coated with a layer of soft mask rust preventive oil. The invention ahs reasonable and simple structure, easy manufacture, good utilization qualities, strong cable bearing ability, good corrosion-resisting properties, safety and long service life. The cable is the ideal cable in the well logging, the perforation, the river, the gulf, the irrigation works and the exploration and the like.

Description

technical field [0001] The invention relates to a structure of a high-temperature-resistant, steam-resistant, anti-corrosion and high-strength load-bearing detection cable, which belongs to the technical field of cables. Background technique [0002] Load-bearing detection cables are mainly used for marine surveys, logging, perforating, and extraction of various oil and gas wells, and are also used for rivers, harbors, water conservancy and hydrological surveys, coal field geological exploration, geothermal logging, etc., as connection for measurement Wire. Existing load-bearing detection cables are usually composed of double-layer steel wire armor and insulated signal control lines inside. The force-bearing part of the entire cable is concentrated on the outer layer of the cable, and the entire cable is stressed Unbalanced, this kind of cable structure can only be applied to general routine operations, and its defects will be revealed when used in some special requirements...

AI Technical Summary

Problems solved by technology

Existing load-bearing detection cables are usually composed of double-layer steel wire armor and insulated signal control lines inside. The force-bearing part of the entire cable is concentrated on the outer layer of the cable, and the entire cable is stressed Unbalanced, this kind of cable structure can only be applied to general routine operations, and its defects will be revealed when used in some special requirements

For example, when the load-bearing detection cable is used for perforation operations, due to high-speed take-off and landing, the load-bearing capacity of the cable increases instantaneously, and the armored steel wire layer will break, and even the cable will be scrapped, affecting the normal operation. , leading to an increase in the cost of the job

The load-bearing detection cable is divided into multiple working temperature grades. At present, the long-term working temperature of the highest temperature-resistant grade cable is 232°C, and it can work at 260°C for a short period of time, which cannot meet the requirements for safe use at higher ambient temperatures.

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