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High-temperature cable for high-strength bearing detection

A high-strength, high-temperature technology, applied in the direction of insulating cables, cables, circuits, etc., can solve problems that affect the normal operation, fail to meet safe use, and break the armored steel wire layer, and achieve anti-corrosion problems and strong acid and alkali resistance. , good performance

Inactive Publication Date: 2008-11-05
BAOSHENG SCI & TECH INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Embodiment Construction

[0011] An insulating layer 3 of special polymer material polyether ether ketone (PEEK) or polyether sulfone ketone (PPESK) is wrapped around the copper conductor 2 to form an insulating core. Six steel wires are surrounded and twisted around one steel wire to form a 1+6 twisted reinforced steel core 1 . 7 insulated wire cores are uniformly and tightly twisted around the 1+6 stranded reinforced steel core 1 to form a cable core, the cable core is filled with inorganic rope 4, and special polymer material polyether ether ketone is extruded on the cable core (PEEK) or polyether sulfone ketone (PPESK) sheath 5, on the sheath 5, a double layer of opposite outer steel wire armor 6 is arranged, and a layer of soft film anti-rust oil is brushed on the outer surface of the steel wire armor 6 . After the anti-rust oil is brushed, it volatilizes and forms a thin film covering the outer steel wire.

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/00H01B7/22H01B3/42
Inventor 仲怀国冯志骏成鑫王晓琦张金成董春
Owner BAOSHENG SCI & TECH INNOVATION
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