CN202650627U

CN202650627U - Armored cable used in oil well exploration

Info

Publication number: CN202650627U
Application number: CN 201220180285
Authority: CN
Inventors: 姜绪宏; 贾超; 张明月; 李丰庆
Original assignee: ANHUI HONGYUAN CABLE GROUP Co Ltd
Current assignee: ANHUI HONGYUAN CABLE GROUP Co Ltd
Priority date: 2012-04-25
Filing date: 2012-04-25
Publication date: 2013-01-02
Anticipated expiration: 2022-04-25

Abstract

The utility model discloses an armored cable used in oil well exploration. The cable core is formed by twisting four insulated cores, a silicon rubber inner protective layer is formed on the outside of the cable core through extrusion, the outside of the inner protective layer is provided with a galvanized steel wire armored layer which is formed through braiding and a polyurethane outer protective layer which is formed through extrusion successively, and a double-layer galvanized steel wire armored layer is braided on the outermost layer of the cable. The cable of the utility model has characteristics, such as good adaptive capacity to severe environment, lateral pressure resistance, good abrasive resistance, good waterproof, etc. Moreover, the cable has characteristics, such as small outer diameter, light weight, easy installation, etc.

Description

A kind of oil well exploration armoured cable

Technical field:

The utility model relates to a kind of cable, is specifically related to a kind of oil well exploration armoured cable.

Background technology:

Develop rapidly along with petroleum exploration in China industry, oil exploration constantly enlarges with the cable market demand, especially be with the present breach of armouring class petrol exploration cable very large, because general oil exploration class cable is the operating environment very severe in the open air, can often run into the impact that radial pressure or weight are thumped suddenly cable from the side in the down-hole, the normal use of cable has been caused very large harm.

Summary of the invention:

For overcoming the defective of prior art, the purpose of this utility model is to provide a kind of oil well exploration armoured cable, and this novel cable can adapt to rugged environment, anti-lateral pressure, the characteristic such as wear-resisting, water-fast also has the characteristics such as external diameter is little, lightweight, easy for installation outward.

The utility model technical solution problem adopts following technical scheme:

A kind of oil well exploration armoured cable, four thoroughly do away with the edge core is twisted into cable core, described cable core is extruded with the silicon rubber sheath outward, and described sheath is woven with successively the galvanized steel wire armour outward, is extruded with the polyurethane outer jacket, and the outermost layer of cable is woven with double-deck zinc-plated steel wire armour layer.

The center of described insulated wire cores is provided with tinned copper conductor, is provided with the perfluoroethylene-propylene insulating barrier at described conductor skin.

Compared with the prior art, the beneficial effects of the utility model are embodied in:

1, external diameter is little, weatherability is strong: because the perfluoroethylene-propylene insulation is adopted in insulation, sheath uses silicon rubber, because this material working temperature is respectively 200 ℃ and 180 ℃, and conventional crosslinked polyethylene serviceability temperature is 90 ℃, like this under same environment, adopt perfluoroethylene-propylene can improve the ampacity of cable, conductor can be selected less cross section conductor, has so effectively reduced the external diameter of cable.

2, anti-radial pressure ability is superior: because two-layer galvanized steel wire armouring; the internal layer sheath is silicone rubber jacket simultaneously; outer protective sleeve is polyurethane jacket; this two heavy material has good elasticity; can effectively play the effect of offside pressure buffer; adopt simultaneously the double-decker armouring; when being subject to the extruding of side direction external force; can play the effect of duplicate protection; effectively improved the lateral pressure resistant power of cable; than simple employing outermost layer braiding galvanized steel wire, lateral pressure resistant power effect improves between 30%～40% like this.

Description of drawings:

Fig. 1 is structural representation of the present utility model.

Number in the figure: 1 conductor, 2 insulating barriers, 3 sheaths, 4 galvanized steel wire armours, 5 polyurethane outer jackets, 6 double-deck zinc-plated steel wire armour layers.

Below pass through embodiment, and the utility model is described in further detail by reference to the accompanying drawings.

Embodiment:

Embodiment: referring to Fig. 1, the oil well exploration armoured cable of present embodiment, four thoroughly do away with the edge core is twisted into cable core, described cable core is extruded with silicon rubber sheath 3 outward, be woven with successively galvanized steel wire armour 4 outside the described sheath 3, be extruded with polyurethane outer jacket 5, the outermost layer of cable is woven with double-deck zinc-plated steel wire armour layer 6.The center of described insulated wire cores is provided with tinned copper conductor 1, is provided with perfluoroethylene-propylene insulating barrier 2 at described conductor 1 skin.

The cable of present embodiment makes by following technical process: the stranded multiply tin-coated copper of bunching machine twisted wire is as conductor 1, extrude perfluoroethylene-propylene insulating barrier 2 at conductor 1 external application high temperature extruder, extrude silicon rubber sheath 3 behind the four-core stranding, outside the silicon rubber sheath, weave galvanized steel wire armour 4, outside galvanized steel wire, extrude polyurethane outer jacket 5, at last the double-deck zinc-plated steel wire armour layer 6 of braiding outside the polyurethane outer jacket.

Claims

1. oil well exploration armoured cable, it is characterized in that, four thoroughly do away with the edge core is twisted into cable core, described cable core is extruded with silicon rubber sheath (3) outward, be woven with successively galvanized steel wire armour (4) outside the described sheath (3), be extruded with polyurethane outer jacket (5), the outermost layer of cable is woven with double-deck zinc-plated steel wire armour layer (6).

2. a kind of oil well exploration armoured cable according to claim 1 is characterized in that, the center of described insulated wire cores is provided with tinned copper conductor (1), is provided with perfluoroethylene-propylene insulating barrier (2) at described conductor (1) skin.