CN202178886U

CN202178886U - Heat tracing cable of automatic temperature control oil field pipeline

Info

Publication number: CN202178886U
Application number: CN 201120280813
Authority: CN
Inventors: 程显军
Original assignee: DALIAN YUANSHENG TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: DALIAN YUANSHENG TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2011-08-04
Filing date: 2011-08-04
Publication date: 2012-03-28
Anticipated expiration: 2021-08-04

Abstract

The utility model relates to a heat tracing cable of an automatic temperature control oil field pipeline. The oil field special-purpose automatic temperature control heat tracing cable includes a heat tracing belt, a shielding layer, and a metal sheath. The shielding layer is coated under the sheath, and the heat tracing belt is coated under the shielding layer. The heat tracing belt includes a carbon fiber inner core, an automatic temperature control layer, and an insulating layer. The carbon fiber inner core of the heat tracing cable of the automatic temperature control oil field pipeline is produced by the pultrusion technology. The heat tracing cable of the automatic temperature control oil field pipeline is provided, and the cable is simple in structure and excellent in heat tracing property, and the service lifetime of the cable is 10 times the service lifetimes of other cables, so the cost is reduced.

Description

A kind of accompanying-heat cable of temperature automatically controlled oil field pipe

Technical field the utility model relates to the accompanying-heat cable field, relates to a kind of accompanying-heat cable of temperature automatically controlled oil field pipe concretely.

The present accompanying-heat cable of background technology has been widely used in a lot of fields; Though its history only has the more than ten years, be applied in the oil exploitation process in industrial aspect, the viscous crude in the crude oil, wax-bearing crude, the high wet goods oil that coagulates are all because of " poor properties "; In exploitation is produced; When crude oil when oil reservoir arrives central gathering station through oil pipe and petroleum pipeline, owing to thermal loss, this can cause the deposition of separating out of wax to make crude oil temperature subcritical flow temperature; Viscosity is uprushed, and increases flowing pressure and causes and can not exploit smoothly.The most commonly used with plain conductor mostly at present to making us in pipeline, sandwich accompanying-heat cable, but high temperature resistant, corrosion resistance is relatively poor, the life-span is short, in the follow-up recovery process in oil field, brings a lot of inconvenience.

Summary of the invention is in order to overcome defective of the prior art, and the purpose of the utility model provides the Special Automatic temperature control accompanying-heat cable of a kind of oil country tubular good, and this oil well special self-control temperature accompanying-heat cable is not only simple in structure, and companion's thermal effect is good,

The technical scheme of the utility model is: the Special Automatic temperature control accompanying-heat cable of this oil well comprises heating tape, screen, metallic sheath.Be coated with screen under the sheath, be coated with heating tape under the screen, heating tape comprises the carbon fiber inner core, from temperature control layer and insulating barrier.

The carbon fiber inner core of the accompanying-heat cable of a kind of temperature automatically controlled oil field pipe of the utility model is to adopt pultrude process production.

The utility model provides a kind of accompanying-heat cable of temperature automatically controlled oil field pipe, and this cable is not only simple in structure, and the companion is 10 times of other cable in good and life-span of thermal effect, so its cost also decreases.

Description of drawings

Fig. 1 is the utility model structural representation sketch;

Among the figure: 1, metallic sheath; 2, screen; 3, heating tape; 4, insulating barrier; 5, temperature automatically controlled layer; 6, carbon fiber inner core;

Embodiment

At the accompanying-heat cable of a kind of temperature automatically controlled oil field pipe shown in Figure 1, its primary structure comprises: 1, metallic sheath; 2, screen; 3, heating tape; 4, insulating barrier; 5, temperature automatically controlled layer; 6, carbon fiber inner core.

In the metallic sheath 1 with the anti-corrosion type fluoroplastics up to insulating effect; Said sheath is coated with screen 21 time; Said screen 2 forms for tinned copper wire braiding, and said screen is coated with heating tape 32 times, and this heating tape comprises carbon fiber inner core 6, from temperature control layer 5 and insulating barrier 4.Said carbon fiber inner core 6 is embedded in temperature control layer 5, and said is common PTC or fire-retardant PTC from temperature control layer 5.

Claims

1. the accompanying-heat cable of a temperature automatically controlled oil field pipe, this oil well accompanying-heat cable comprises heating tape, screen, metallic sheath; Be coated with screen under the sheath, be coated with heating tape under the screen and it is characterized in that: heating tape comprises the carbon fiber inner core, from temperature control layer and insulating barrier.

2. the accompanying-heat cable of a kind of temperature automatically controlled oil field pipe according to claim 1 is characterized in that: the carbon fiber inner core of accompanying-heat cable is to adopt pultrude process production.