CN210289716U

CN210289716U - Wax scraping device for oil well

Info

Publication number: CN210289716U
Application number: CN201921122970.3U
Authority: CN
Inventors: 闫朕嘉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-04-10
Anticipated expiration: 2029-07-17

Abstract

The utility model relates to an oil well wax scraping device in the technical field of oil gas exploitation, which comprises a cleaning rod, wherein the bottom end of the cleaning rod is in threaded connection with a rotating ring, both sides of the upper end of the cleaning rod are fixedly connected with a metal hose, the other end of the metal hose is fixedly connected with a fixed plate, the other end of the fixed plate is fixedly connected with a scraper, the upper end of the cleaning rod is in threaded connection with a moving ring, both ends of the moving ring and the rotating ring as well as the upper end and the lower end of the fixed plate are fixedly connected with articulated elements, the upper end of the moving ring and the upper end of the fixed plate as well as the lower end of the rotating ring and the fixed plate are respectively articulated with a support rod, the upper end of the metal hose inside of the cleaning rod is provided with a sealing gasket, the upper end of the sealing gasket outside of the cleaning rod is evenly provided with four groups of, thereby satisfying the oil pipes with different diameters and having wide applicability.

Description

Wax scraping device for oil well

Technical Field

The utility model relates to an oil gas exploitation technical field, concretely relates to oil well is with scraping wax device.

Background

Oil and gas extraction is a process of extracting oil, natural gas, and the like buried in an underground oil reservoir from the ground. The mode of exploiting oil and gas from underground to the ground can be divided into the following steps according to whether the energy is artificially supplemented to the well bore fluid: self-spraying and artificial lifting. The artificial lift oil production comprises: gas lift oil production, sucker rod pump oil production, submersible electric centrifugal pump oil production, hydraulic piston pump oil production, jet pump oil production, and the like.

The mode of exploiting oil and gas from underground to the ground can be divided into the following steps according to whether the energy is artificially supplemented to the well bore fluid: self-spraying and artificial lifting. The self-spraying is a mode that the energy of an oil layer is sufficient, and the oil can be lifted to the ground by utilizing the energy of the oil layer; if the reservoir is low in energy, the crude oil must be lifted manually from the bottom of the well to the surface by manually adding energy to the wellbore fluid. Generally, some oil fields with insufficient natural energy have no self-spraying capability, and some oil fields have the self-spraying capability, but the self-spraying period is short, only about one year, at most, 3-5 years are not enough, and the production life of one oil field lasts for more than 20-30 years, so most of crude oil in an oil layer is recovered by an artificial lifting mode. The artificial lift oil production comprises: gas lift oil production, sucker rod pump oil production, submersible electric centrifugal pump oil production, hydraulic piston pump oil production, jet pump oil production, and the like.

Crude oil produced in oil wells is primarily composed of hydrocarbons, which contain varying degrees and amounts of paraffins. When the temperature of the crude oil is lower than the wax precipitation point of the crude oil, the wax originally dissolved in the crude oil is separated out and mainly condensed on the inner wall of the oil well, and if the wax blocks on the well wall are not cleaned in time, the oil well is easy to be blocked, so that the yield of the oil well is continuously reduced, and even the production stop of the oil well is caused.

At present, in the wax scraping operation of a high wax-containing oil well, the wax scraping effect is improved mostly by changing the mechanical structure of a wax scraping tool, however, the single mechanical wax scraping effect is not ideal, the resistance in the wax removing process is very large, the energy consumption is increased, and the wax scraping tool is not suitable for the wax removing operation of oil pipes with different diameters.

Based on this, the utility model designs an oil well is with scraping wax device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at overcomes at least a defect among the prior art, provides an oil well is with scraping wax device to solve the wax operation of scraping of high wax-containing oil well that proposes in the above-mentioned background art, the mechanical structure who scrapes the wax instrument from the change is mostly all followed and is improved and scrape the wax effect, however solitary machinery is scraped the wax effect and is not ideal, and the wax removal in-process resistance is very big, has increased the energy consumption, and is not suitable for the problem of the oil pipe paraffin removal operation of different diameters size.

In order to realize the technical scheme, the utility model discloses a following technical scheme:

according to one aspect of the utility model, the wax scraping device for the oil well comprises a cleaning rod, wherein the bottom end of the cleaning rod is in threaded connection with a rotating ring, both sides of the upper end of the rotating ring of the cleaning rod are fixedly connected with metal hoses, the other end of each metal hose is fixedly connected with a fixed plate, the other end of the fixed plate is fixedly connected with a scraper, a compression spring is arranged in each metal hose, both ends of each compression spring are respectively and fixedly connected with the cleaning rod and the fixed plate, the upper end and the lower end of each cleaning rod, which are respectively provided with opposite threads, are connected with a moving ring through threads, both ends of the moving ring and the rotating ring and the upper and the lower ends of the fixed plate are fixedly connected with articulated elements, the upper ends of the moving ring and the fixed plate and the lower ends of the rotating ring and the fixed plate are articulated with supporting rods, the inner part, four groups of spray heads are uniformly arranged at the upper end of the sealing gasket on the outer side of the cleaning rod and communicated with the interior of the cleaning rod.

Preferably, the upper end inside the cleaning rod is connected with a piston in a sliding mode, the upper end of the piston is fixedly connected with a piston rod, and the upper end of the piston rod is fixedly connected to the lower end of the pushing handle.

Preferably, the lower end of the rotating ring is provided with a limiting ring fixedly connected with the cleaning rod.

Preferably, the upper end of the moving ring is fixedly connected with a rotating handle, and the rotating handle is in threaded connection with the cleaning rod.

Preferably, the outer side of the rotating handle is wrapped with a layer of rubber pad, and raised dots are arranged on the surface of the rubber pad.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses having combined machinery to scrape wax and chemical paraffin removal method, can having accelerated the efficiency of paraffin removal, the paraffin removal effect is better simultaneously, convenient operation, and is further, and this device still can be adjusted the distance of two sets of scrapers through the change to removing the ring position, and then satisfies the oil pipe of different diameters size, extensive applicability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic top view of the cleaning rod structure of fig. 1 according to the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-cleaning rod, 2-rotating ring, 3-metal hose, 4-fixing plate, 5-scraper, 6-compression spring, 7-moving ring, 8-hinged part, 9-supporting rod, 10-sealing gasket, 11-spray head, 12-piston, 13-piston rod, 14-pushing handle, 15-limiting ring and 16-rotating handle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-2, the present invention provides a technical solution: the wax scraping device for the oil well comprises a cleaning rod 1, wherein a rotating ring 2 is connected to the bottom end of the cleaning rod 1 through threads, metal hoses 3 are fixedly connected to two sides of the upper end of the rotating ring 2 of the cleaning rod 1, a fixing plate 4 is fixedly connected to the other end of each metal hose 3, a scraper 5 is fixedly connected to the other end of each fixing plate 4, a compression spring 6 is arranged in each metal hose 3, two ends of each compression spring 6 are fixedly connected to the cleaning rod 1 and the fixing plate 4 respectively, opposite threads are arranged at the upper end and the lower end of the cleaning rod 1, opposite threads are arranged at the upper end and the lower end of each metal hose 3, a moving ring 7 is connected to the upper end of the cleaning rod 1 through threads, hinged parts 8 are fixedly connected to two ends of the moving ring 7 and the rotating ring 2 and the upper end and the lower end of each fixing plate 4, supporting rods 9 are hinged to the upper ends, wash 1 inside upper end that is located metal collapsible tube 3 of pole and be equipped with sealed pad 10, wash 1 outside of pole and be located the upper end of sealed pad 10 and evenly be equipped with four groups shower nozzle 11, shower nozzle 11 communicates in washing 1 insides of pole.

Wherein, wash the inside upper end sliding connection of pole 1 and have piston 12, piston 12 upper end fixedly connected with piston rod 13, piston rod 13 upper end fixed connection is in the lower extreme of pushing hands 14, utilizes pushing hands 14 to promote piston rod 13 to make piston 12 move down, make the washing liquid that is in washing pole 1 inside spout from shower nozzle 11 owing to the effect of atmospheric pressure, thereby spray to the inner wall of oil pipe, react with the paraffin deposit, make it drop fast. The lower end of the swivel 2 is provided with a limit ring 15 fixedly connected with the cleaning rod 1, and the limit ring 15 can prevent the swivel 12 from sliding out of the cleaning rod 1 when rotating, so that the position of the swivel 2 is limited. Move 7 upper ends fixedly connected with of shift ring and rotate handle 16, rotate 16 threaded connection of handle and wash pole 1, the staff rotates shift ring 7 through rotating this rotation handle 16 to distance between fixed plate 4 is adjusted, thereby scraper 5 contacts with oil pipe's inner wall, and the paraffin removal effect is better. The outer side of the rotating handle 16 is wrapped with a layer of rubber pad, raised dots are arranged on the surface of the rubber pad, friction between the rubber pad and a hand can be increased, a worker can rotate the rotating handle conveniently, and meanwhile the rotating handle 16 can be protected.

One specific application of this embodiment is: when the device is used, the diameter of the paraffin removal oil pipe is cleaned as required, so that the distance between the two groups of fixing plates 4 is adjusted, a worker rotates the rotating handle 16 to drive the moving ring 7 and the rotating ring 2 to rotate, so that the moving ring 7 and the rotating ring 2 move towards or away from the fixing plates 4, the distance between the fixing plates 4 is adjusted, the scraper 5 at one end of each fixing plate 4 is in full contact with the corresponding scraper 5, the cleaning rod 1 can extend into the oil pipe to rotate the cleaning rod 1, the scraper 5 is used for removing paraffin deposition on the inner wall of the oil pipe, further, hot cleaning liquid can be injected into the cleaning rod 1 to compress the piston 12, the air pressure inside the cleaning rod 1 is increased, the cleaning liquid inside the cleaning rod 1 can be sprayed out of the spray head 11, the inner wall of the oil pipe is cleaned, the paraffin deposition and the hot cleaning liquid react with each other, and the adhesion force between the paraffin and the inner wall of the oil pipe can be reduced, the efficiency of paraffin removal is accelerated.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides an oil well is with scraping wax device, includes washing pole (1), its characterized in that: wash pole (1) bottom threaded connection and have change (2), wash the equal fixedly connected with metal collapsible tube (3) in upper end both sides that pole (1) is located change (2), metal collapsible tube (3) other end fixedly connected with fixed plate (4), fixed plate (4) other end fixedly connected with scraper (5), be equipped with compression spring (6) in metal collapsible tube (3), fixed connection is in washing pole (1) and fixed plate (4) respectively in compression spring (6) both ends, the upper and lower extreme that washs pole (1) is located metal collapsible tube (3) is equipped with opposite screw thread, it has shift ring (7) to wash pole (1) upper end through threaded connection, equal fixedly connected with articulated elements (8) of upper and lower extreme on shift ring (7) and change (2) both ends and fixed plate (4) the shift ring (7) and fixed plate (4) upper end and change (2) and fixed plate (4) lower extreme all articulate there is bracing piece (9) The cleaning device is characterized in that the upper end of the cleaning rod (1) is internally of a hollow structure, a sealing gasket (10) is arranged at the upper end of the metal hose (3) inside the cleaning rod (1), four groups of spray heads (11) are uniformly arranged at the upper end of the sealing gasket (10) outside the cleaning rod (1), and the spray heads (11) are communicated with the inside of the cleaning rod (1).

2. The wax scraping device for an oil well according to claim 1, wherein: the cleaning device is characterized in that a piston (12) is connected to the upper end inside the cleaning rod (1) in a sliding mode, a piston rod (13) is fixedly connected to the upper end of the piston (12), and the upper end of the piston rod (13) is fixedly connected to the lower end of a pushing handle (14).

3. The wax scraping device for an oil well according to claim 1, wherein: the lower end of the rotating ring (2) is provided with a limiting ring (15) fixedly connected with the cleaning rod (1).

4. The wax scraping device for an oil well according to claim 1, wherein: the upper end of the moving ring (7) is fixedly connected with a rotating handle (16), and the rotating handle (16) is connected to the cleaning rod (1) in a threaded mode.

5. The wax scraping device for an oil well according to claim 4, wherein: the outer side of the rotating handle (16) is wrapped with a layer of rubber pad, and convex dots are arranged on the surface of the rubber pad.