CN203022693U

CN203022693U - Electromagnetic and superconductive heating dewaxing device for hollow sucker rod of producing well

Info

Publication number: CN203022693U
Application number: CN 201320045422
Authority: CN
Inventors: 吴汉东; 李柏坤; 巢华庆
Original assignee: DAQING KEFENG PETROLEUM TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: DAQING KEFENG PETROLEUM TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2013-01-28
Filing date: 2013-01-28
Publication date: 2013-06-26
Anticipated expiration: 2023-01-28

Abstract

The utility model discloses an electromagnetic and superconductive heating dewaxing device for a hollow sucker rod of a producing well, solving the problem that wax easily deposits on a mineshaft wall, namely, the hollow sucker rod of a thickened oil producing well. An armoring mineral insulation electromagnetic heating wire is placed in the hollow sucker rod of the producing well; superconducting fluid is filled in the hollow sucker rod; in the production process, the heat produced after the armoring mineral insulation electromagnetic heating wire is electrified is used for heating the superconducting fluid in the hollow sucker rod, the heat of the superconducting fluid is transferred to the outer wall of the sucker rod through the sucker rod and is used for heating crude oil in an oil pipe; when the heating temperature is higher than the wax deposition temperature, wax blockage formed in a mineshaft can be smelted; and due to the electromagnetic effect, walls of the sucker rod and the oil pipe produce repulsive interaction on waxiness to prevent the waxiness in the crude oil from adhering the surfaces of the sucker rod and the oil pipe, thus the motion resistance of the crude oil in the oil pipe is greatly reduced, and the burden and the fault rate of an oil well pump are reduced.

Description

Producing well hollow rod electromagnetic superconducting heating de-waxing apparatus

Technical field

The utility model relates to a kind of device that prevents oil-field thick-oil producing well sucker rod and wax deposition.

Background technology

On the oil field, use hollow rod for the viscous crude producing well, because viscous crude is very easy to wax deposition more, so often because of inner wax deposition, blockage phenomenon directly affects manufacturing schedule for hollow rod and pit shaft, wax removal operation simultaneously also bothers very much, seriously restricts the exploitation of viscous crude producing well.

Summary of the invention

The purpose of this utility model is to provide a kind of producing well hollow rod heating de-waxing apparatus, and this device can effectively prevent hollow rod and well bore wall wax deposition, guarantees the mining progress of viscous crude producing well.

for achieving the above object, the technical solution adopted in the utility model is: producing well hollow rod electromagnetic superconducting heating de-waxing apparatus, comprise some armouring mineral insulation Electromagnetic Heating lines, the hot junction head, the cold junction head, sealing plate, superconducting fluid, superconducting fluid expansion loop and administration of power supply, administration of power supply wherein comprises electricity cable and electric control box, described armouring mineral insulation Electromagnetic Heating line penetrates in hollow rod, the lower terminal of heater wire be positioned at the wax deposition section below, the lower terminal of all heater wires is packaged together and consists of the terminal end socket, hang plummet below the terminal end socket, the upper end of heater wire connects respectively the hot junction head, the core of above-mentioned armouring mineral insulation Electromagnetic Heating line is nickel silicon alloy EMR electromagnetic resonance line, and line is surrounded by nickel Chrome alloy electromagnetic induction shell outward, and the rare-earth mineral insulating layer is set between shell and core, the lower end of hollow rod is fixedly connected with solid sucker rod, pours into superconducting fluid in hollow rod, the threeway that is tightly connected of the upper end of hollow rod, a port sealing of threeway connects the superconducting fluid expansion loop, can superconducting fluid in expansion loop, expansion loop arranges upper cover, on cover breather plug be set, another port of threeway first steel sheath pipe that is threaded, the first steel sheath pipe connects the second steel sheath pipe by casing joint, above-mentioned hot junction head is fixed on sealing plate, sealing plate is inserted between first and second steel sheath pipe, sealing the first steel sheath tube chamber, and the hot junction head connects the cold junction head by cold end line, the cold junction head connects the electricity cable of administration of power supply, the electricity cable overcoat has soft protecting pipe, is fixedly connected with electricity cable access electric control box between soft protecting pipe and the second steel sheath pipe.

Preferred this device also comprises Automatic Temperature Control, and when the heating-up temperature that detects exceeds setting range, automatic controller will be adjusted heating power automatically.

Of the present utility model producing effect: because the viscosity of crude through heating reduces and R a T keeps without wax deposition that tube chamber is unobstructed, tube wall is smooth, greatly reduce the resistance of motion of crude oil in oil pipe, reduce load and the fault rate of oil well pump, improve the oil pumping effect of oil pumper, save the energy, shorten the time between overhauls(TBO) of oil well.

Description of drawings

Fig. 1 is the structural representation of the utility model producing well hollow rod electromagnetic superconducting heating de-waxing apparatus.

Fig. 2 is the structural representation that the utility model device uses state.

Fig. 3 is the structural representation of armouring mineral insulation Electromagnetic Heating line.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is further described:

by Fig. 1 in conjunction with shown in Figure 2: producing well hollow rod electromagnetic superconducting heating de-waxing apparatus, comprise some armouring mineral insulation Electromagnetic Heating lines 15, hot junction 6, cold junction head 4, sealing plate 7, superconducting fluid 13, superconducting fluid expansion loop 12 and administration of power supply, administration of power supply wherein comprises electricity cable 1 and electric control box, described armouring mineral insulation Electromagnetic Heating line 15 penetrates in hollow rod 14, the lower terminal of heater wire 15 be positioned at hollow rod the wax deposition section below, the lower terminal of all heater wires 15 is packaged together and consists of terminal end socket 21, hang plummet 22 below terminal end socket 21, the upper end of heater wire 15 connects respectively hot junction 6, by shown in Figure 3: the core of above-mentioned armouring mineral insulation Electromagnetic Heating line 15 is nickel silicon alloy EMR electromagnetic resonance line 31, and line is surrounded by nickel Chrome alloy electromagnetic induction shell 33 outward, and rare-earth mineral insulating layer 32 is set between shell and core, the lower end of hollow rod 14 is fixedly connected with solid sucker rod 23, pour into superconducting fluid 13 in hollow rod 14, the threeway 9 that is tightly connected of the upper end of hollow rod 14, a port sealing of threeway 9 connects superconducting fluid expansion loop 12, the interior can superconducting fluid 13 of expansion loop 12, expansion loop arranges upper cover 11, and breather plug 10 is set on upper cover 11, another port of threeway 9 first steel sheath pipe 8 that is threaded, the first steel sheath pipe connects the second steel sheath pipe 3 by casing joint, above-mentioned hot junction 6 is fixed on sealing plate 7, sealing plate 7 is inserted between first and second steel sheath pipe, seal the first steel sheath tube chamber, hot junction 6 connects cold junction heads 4 by cold end line 5, cold junction head 4 connects the electricity cable 1 of administration of power supply, electricity cable 1 overcoat has soft protecting pipe 2, be fixedly connected with electricity cable 1 access electric control box between soft protecting pipe 2 and the second steel sheath pipe 3.

During use, install the hollow rod 14 of the utility model device, be fixedly connected with the oil pumping rope of horse head by hanger 16, hollow rod penetrates in well head four-way 18, well head arranges sealed packing 17, and the hollow rod 14 in well is fixedly connected with the solid sucker rod 23 of down-hole, be fixedly connected with oil well pump 24 below solid sucker rod 23, the oil pipe 19 of down-hole, sleeve pipe 20 form petroleum production system with sucker rod; In manufacturing process, the heat that produces after the energising of armouring mineral insulation Electromagnetic Heating line is with superconducting fluid 13 heating in hollow rod 14, the heat of superconducting fluid 13 is communicated to the sucker rod outer wall by sucker rod and heats crude oil in oil pipe, when heating-up temperature during higher than the wax deposition temperature, the paraffin blockage fusing that pit shaft can be formed, reduce again the viscosity of crude oil, and the effect due to galvanomagnetic-effect, make the R a T wall produce repulsive interaction to wax, prevent that wax in crude oil is bonded in the R a T surface.

Claims

1. producing well hollow rod electromagnetic superconducting heating de-waxing apparatus, comprise some armouring mineral insulation Electromagnetic Heating lines, the hot junction head, the cold junction head, sealing plate, superconducting fluid, superconducting fluid expansion loop and administration of power supply, administration of power supply wherein comprises electricity cable and electric control box, it is characterized in that: described armouring mineral insulation Electromagnetic Heating line penetrates in hollow rod, the lower terminal of heater wire be positioned at the wax deposition section below, the lower terminal of all heater wires is packaged together and consists of the terminal end socket, hang plummet below the terminal end socket, the upper end of heater wire connects respectively the hot junction head, the core of above-mentioned armouring mineral insulation Electromagnetic Heating line is nickel silicon alloy EMR electromagnetic resonance line, and line is surrounded by nickel Chrome alloy electromagnetic induction shell outward, and the rare-earth mineral insulating layer is set between shell and core, the lower end of hollow rod is fixedly connected with solid sucker rod, pours into superconducting fluid in hollow rod, the threeway that is tightly connected of the upper end of hollow rod, a port sealing of threeway connects the superconducting fluid expansion loop, can superconducting fluid in expansion loop, expansion loop arranges upper cover, on cover breather plug be set, another port of threeway first steel sheath pipe that is threaded, the first steel sheath pipe connects the second steel sheath pipe by casing joint, above-mentioned hot junction head is fixed on sealing plate, sealing plate is inserted between first and second steel sheath pipe, sealing the first steel sheath tube chamber, and the hot junction head connects the cold junction head by cold end line, the cold junction head connects the electricity cable of administration of power supply, the electricity cable overcoat has soft protecting pipe, is fixedly connected with electricity cable access electric control box between soft protecting pipe and the second steel sheath pipe.

2. producing well hollow rod electromagnetic superconducting heating de-waxing apparatus according to claim 1, it is characterized in that: this device also comprises Automatic Temperature Control.