CN203214007U

CN203214007U - Oil production paraffin control device with two component dual structure

Info

Publication number: CN203214007U
Application number: CN 201320113316
Authority: CN
Inventors: 杨飞; 王猛; 卓刘成
Original assignee: NAIR ENERGY EQUIPMENT Co Ltd
Current assignee: NAIR ENERGY EQUIPMENT Co Ltd
Priority date: 2013-03-13
Filing date: 2013-03-13
Publication date: 2013-09-25
Anticipated expiration: 2023-03-13

Abstract

The utility model discloses an oil production paraffin control device with a two-component dual structure. The oil production paraffin control device comprises a component A and a component B, wherein the component A includes a paraffin control alloy tube, an outer sleeve A and a convex combiner A; the outer sleeve A is sleeved outside the paraffin control alloy tube; the convex combiner A is connected with the paraffin control alloy tube through a thread; the component B includes an inner tube, an outer sleeve B and a convex combiner B; the outer sleeve B is sleeved outside the inner pipe; the convex combiner B is connected with the outer sleeve B through the thread; the lower end of the component B is sleeved inside the convex combiner A of the component A. By adopting the oil production paraffin control device, the separating and aggregating functions of paraffin in crude oil are restrained; the production efficiency is improved; the environmental pollution is reduced.

Description

A kind of oil recovery wax-proofing apparatus of double elements double structure

Technical field

The utility model relates to the oil exploitation down-hole mechanical, and the oil recovery wax-proofing apparatus of the double elements double structure that prevents in a kind of oil exploitation process that oil pick-up tube from stopping up is provided especially.

Background technology

Generally all contain wax in the crude oil, there is the very high oil field of many paraffin contents in China.When oil producing operation, crude oil constantly reduces owing to temperature from the process of subsurface to surface, wax in the crude oil can be separated out after temperature reaches wax precipitation point (generally about 40 ℃) and be condensed at sucker rod and tube wall, the operation that finally causes pumping stops, must remove the wax that solidifies by " well-flushing " and could continue oil pumping, clear wax control becomes the important technical links of crude oil production.The most frequently used method of well-flushing is that heat is washed or paraffin removing with chemical method, this is no doubt effective, but just can restart the operation of pumping after must stopping oil producing operation and experiencing the drainage period of a couple of days, the discharging of a large amount of chemical substances is arranged simultaneously, have a strong impact on crude oil production efficient and contaminated environment.In the ground system (oil pipeline and crude Treatment system) of crude oil production, also there is clear wax control problem.In the petroleum recovering process, along with the continuous reduction of temperature, reach wax precipitation point after, just have a large amount of paraffin and separate out and be attached to sucker rod and oil pick-up tube tube wall.Along with constantly separating out of paraffin, the paraffin on tube wall and the sucker rod is more poly-more many, causes oil pick-up tube to stop up.

The utility model content

The purpose of this utility model is to provide has separating out and the oil recovery wax-proofing apparatus of the double elements double structure of the function of reuniting of wax in the crude oil for inhibiting.

The utility model is achieved in that a kind of oil recovery wax-proofing apparatus of double elements double structure, formed by A assembly and B assembly, it is characterized in that: described A assembly is made up of wax control compo pipe, outer tube A and convex combiner A, outer tube A is enclosed within the outside of wax control compo pipe, and convex combiner A and wax control compo pipe are by being threaded; Described B assembly is made up of interior pipe, outer tube B and convex combiner B, the outside of pipe in described outer tube B is enclosed within, and convex combiner B and outer tube B are by being threaded; The lower end of described B assembly is sleeved in the convex combiner A of described A assembly.

Wax control compo pipe described in the utility model is configured to two parts up and down, and the wax control compo pipe is provided with several equally distributed apertures on two parts tube wall up and down.

Inner pipe wall described in the utility model is provided with several equally distributed apertures, and interior pipe upper end is set to blind end.

All be coated with the wax control surface course on inner tube wall described in the utility model and the outer wall; Be coated with the wax control surface course on the inwall of described outer tube A and outer tube B.

All be coated with the wax control surface course on inner tube wall described in the utility model and the outer wall.

The utility model has suppressed separating out and the function of reuniting of wax in the crude oil, has improved production efficiency, has reduced environment pollution.

Description of drawings

Fig. 1 is the structural representation of A assembly of the oil recovery wax-proofing apparatus of double elements double structure;

Fig. 2 is the structural representation of the oil recovery wax-proofing apparatus B assembly of double elements double structure.

Among the figure 1, the wax control compo pipe, 2, outer tube A, 3, convex combiner A, 4, interior pipe, 5, outer tube B, 6, convex combiner B.

The specific embodiment

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

With reference to accompanying drawing, a kind of oil recovery wax-proofing apparatus of double elements double structure, formed by A assembly and B assembly, it is characterized in that: described A assembly is made up of wax control compo pipe 1, outer tube A2 and convex combiner A3, outer tube A is enclosed within the outside of wax control compo pipe, and convex combiner A and wax control compo pipe 1 are by being threaded; Described B assembly is made up of interior pipe 4, outer tube B5 and convex combiner B6, the outside of pipe in described outer tube B is enclosed within, and convex combiner B and outer tube B5 are by being threaded; The lower end of described B assembly is sleeved in the convex combiner A3 of described A assembly.Described wax control compo pipe 1 is configured to two parts up and down, and the wax control compo pipe is provided with several equally distributed apertures on two parts tube wall up and down.Pipe 4 tube walls are provided with several equally distributed apertures in described, and interior pipe 4 upper ends are set to blind end.All be coated with the wax control surface course on pipe 4 inner and outer walls in described; Be coated with the wax control surface course on the inwall of described outer tube A2 and outer tube B5.All be coated with the wax control surface course on pipe 4 inner and outer walls in described.During concrete enforcement, A assembly and B component string are connected in the oil well pipeline in the utility model, prevent and stop separating out of paraffin to reach.Form eruption jet state when wherein the A assembly makes crude oil pass through it by changing area of passage twice, make crude stream after it, form a kind of unstable state, prevent and stop separating out of paraffin to reach.When the B assembly makes crude oil pass through it crude oil is formed shearing and injection, further strengthened the A assembly crude oil is formed astable effect.During work, crude oil enters wax control compo pipe lower part from the lower end of A assembly, be ejected into groove between outer tube A and the wax control compo pipe from the tube wall aperture under pressure, upwards flow along groove, be ejected in the hole, wax control compo pipe top from top groove aperture, flow to the B assembly, because the wax control compo pipe has the function of wax control, therefore can guarantee the unimpeded of pipeline, thereby prolong the cycle of wax removal effectively.Crude stream is during to the B assembly, enter interior pipe by stomidium under the interior pipe, the area of space in being ejected into from the inner tubal wall aperture under pressure between pipe and the outer tube upwards flows, and enters the oil pumping pipeline by convex combiner B again, during this period, crude oil form the turbulent flow fully contact with wax control alloy surface layer.The utility model is the reunion behavior that changes wax electronic structure of molecule and then change wax crystalline substance by electrochemical action, effectively suppress and slow down the piece that condenses into of wax, impel the wax of separating out to float on a liquid with small crystal habit and with liquid flow, therefore effectively prevent and delay wax condensing on tube wall, sucker rod, thereby prolong the clean-out service cycle of oil well.As the clear wax control The application of new technique of a kind of crude oil production, except improving crude oil production efficient, also avoided the pollution that heat is washed, chemical well-flushing causes, have tangible society and economic worth.Be applicable to pumpingh well, flowing well and ground crude oil transportation system.

Claims

1. the oil recovery wax-proofing apparatus of a double elements double structure, formed by A assembly and B assembly, it is characterized in that: described A assembly is by wax control compo pipe (1), outer tube A(2) and convex combiner A(3) form, outer tube A is enclosed within the outside of wax control compo pipe, and convex combiner A and wax control compo pipe (1) are by being threaded; Described B assembly is by interior pipe (4), outer tube B(5) and convex combiner B(6) form the outside of pipe in described outer tube B is enclosed within, convex combiner B and outer tube B(5) by being threaded; The lower end of described B assembly is sleeved on the convex combiner A(3 of described A assembly) in.

2. according to the oil recovery wax-proofing apparatus of the described a kind of double elements double structure of claim 1, it is characterized in that: described wax control compo pipe (1) is configured to two parts up and down, and the wax control compo pipe is provided with several equally distributed apertures on two parts tube wall up and down.

3. according to the oil recovery wax-proofing apparatus of the described a kind of double elements double structure of claim 1, it is characterized in that: pipe (4) tube wall is provided with several equally distributed apertures in described, and interior pipe (4) upper end is set to blind end.

4. according to the oil recovery wax-proofing apparatus of claim 1 or 3 described a kind of double elements double structure, it is characterized in that: all be coated with the wax control surface course on pipe (4) inner and outer wall in described; Described outer tube A(2) and outer tube B(5) inwall on be coated with the wax control surface course.

5. according to the oil recovery wax-proofing apparatus of claim 1 or 3 described a kind of double elements double structure, it is characterized in that: all be coated with the wax control surface course on pipe (4) inner and outer wall in described.