Integrated paraffin scraper

Abstract

The utility model relates to the technical field of oilfield exploitation, in particular to an integrated paraffin scraper, and aims to solve the technical problem of poor paraffin scraping effect of a paraffin removal tool in related technologies. The integrated paraffin scraper comprises a paraffin scraping rod which is made of lead, and a spiral groove is formed in the side face of the paraffin scraping rod. And the spiral groove extends from one end of the paraffin scraping rod to the other end. The wax scraping rod is provided with the spiral groove to form a twist drill structure, so that the wax scraping rod integrates the functions of a wax scraping sheet and a plumb bob, can move downwards under the action of self gravity, and can scrape wax. According to the integrated wax scraper, a hanging part between the wax scraping sheet and the plumb bob is omitted, the working part is long, the hard wax tapping effect can be improved, a quick-blocking oil pipe can be drilled, the wax scraping time is remarkably shortened, the wax scraping efficiency is improved, the labor intensity of workers is reduced, the tool use cost is reduced, and the yield increasing purpose is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to oilfield exploitation technical field especially relates to an integrated wax scraper. BACKGROUND

[0002] In the oil well production process, the wax deposition on the inner wall of the oil pipe will cause the output of the oil well to decrease, so it is necessary to clean the wax on the inner wall of the oil pipe regularly.

[0003] The existing mechanical wax cleaning tool mainly comprises a wax scraping piece and a plumb bob, the front end of the wax scraping piece is generally large in diameter or width, which is not conducive to scraping hard wax, and the wax cannot be scraped when the wax is thick, in addition, due to the large number of hanging parts, the working part of the wax scraping piece is short, under the influence of factors such as hard wax, the buoyancy of the rising crude oil and the like, irregular relative movement is prone to occur between the connecting parts during wax scraping, the direction of the wax scraping piece cutting the wax changes repeatedly, the amount of scraped wax is small, the wax scraping time is long, the wax scraping efficiency is low, the labor intensity of the staff is increased, and the efficient production of the oil well is affected. SUMMARY

[0004] The utility model discloses a kind of integrated wax scrapers, to alleviate the technical problem of poor wax cleaning effect of wax cleaning tool in relevant technology.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows:

[0006] The integrated wax scraper provided by the utility model comprises a wax scraping rod, the wax scraping rod is made of lead, and a spiral groove is arranged on the side surface of the wax scraping rod.

[0007] The spiral groove extends from one end of the wax scraping rod to the other end.

[0008] Further, the wax scraping rod is conical.

[0009] Further, along the axial direction of the wax scraping rod, the wax scraping rod sequentially comprises an upper wax scraping section, a middle wax scraping section and a lower wax scraping section which are integrally formed.

[0010] From the middle of the middle wax scraping section to the free end of the upper wax scraping section, the diameter of the wax scraping rod gradually decreases.

[0011] From the middle of the middle wax scraping section to the free end of the lower wax scraping section, the diameter of the wax scraping rod also gradually decreases.

[0012] Further, the lengths of the upper wax scraping section and the lower wax scraping section are equal.

[0013] Further, the maximum diameter of the middle wax scraping section is 58-59 mm.

[0014] Further, the diameters of the ends of the upper wax scraping section and the lower wax scraping section away from the middle wax scraping section are both 38 mm.

[0015] Further, the wax scraping rod further comprises a tapered tip section integrally formed with the lower wax scraping section, and gradually decreasing in diameter to zero in a direction away from the lower wax scraping section.

[0016] Further, the integrated wax scraper further comprises a rigging provided at an end of the upper wax scraping section.

[0017] Further, the rigging comprises a carabiner connected with the upper wax scraping section.

[0018] Further, a hook body of the carabiner is threaded through the upper wax scraping section and can rotate around its own axis and threaded through the axis of the upper wax scraping section.

[0019] The technical effects achieved by the integrated wax scraper provided by the above technical solutions are as follows:

[0020] The integrated wax scraper comprises a wax scraping rod made of lead, and a helical groove is provided on a side surface of the wax scraping rod.

[0021] In the integrated wax scraper, the wax scraping rod made of lead forms a twist drill structure by the helical groove, so that the wax scraping rod integrates the functions of a wax scraping sheet and a plumb bob, can move downward by its own gravity, and can scrape wax.

[0022] Compared with the prior art, the integrated wax scraper is designed as a twist drill structure, eliminates the hanging parts between the wax scraping sheet and the plumb bob, has a longer working part, can improve the effect of attacking hard wax, can drill open a fast blocked oil pipe, significantly reduces the wax scraping time, improves the wax scraping efficiency, reduces the labor intensity of workers, reduces the tool use cost, and achieves the purpose of increasing production. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 The front view of the integrated wax scraper provided by the embodiments of the present application.

[0025] Figure legend: 1-wax scraping rod; 11-upper wax scraping section; 12-middle wax scraping section; 13-lower wax scraping section; 14-tapered tip section;

[0026] 2-rigging. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0029] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0030] Existing mechanical wax cleaning tools mainly consist of a wax scraper and a plumb bob. The diameter or width of the front end of the wax scraper is generally large, which is not conducive to scraping hard wax. When the wax is thick, it cannot be scraped. In addition, due to the large number of hanging parts and the short working part of the wax scraper, the hard wax and the buoyancy of the rising crude oil can easily cause irregular relative movement between the connecting parts during scraping, resulting in repeated changes in the direction of the wax cutting by the wax scraper, a small amount of wax scraped, a long scraping time, low scraping efficiency, increased labor intensity of employees, and affecting the efficient production of oil wells.

[0031] In view of this, the utility model provides an integrated wax scraper, including a wax scraper rod 1. The wax scraper rod 1 is made of lead and has a spiral groove on its side. The spiral groove extends from one end of the wax scraper rod 1 to the other end.

[0032] In this integrated wax scraper, the lead wax scraper rod 1 is provided with a spiral groove to form a twist drill structure. In this way, the wax scraper rod 1 integrates the functions of a wax scraper and a plumb bob, and can move downward by its own gravity while scraping wax.

[0033] Compared with the existing technology, this integrated wax scraper is designed as a twist drill structure, which eliminates the hanging parts between the wax scraper and the plumb bob, and has a longer working part, which can improve the effect of tapping hard wax, and can drill through quickly blocked oil pipes, significantly reducing the scraping time, improving the scraping efficiency, reducing employee labor intensity, reducing tool usage costs, and achieving the goal of increasing production.

[0034] The following combination Figure 1The structure and shape of the integrated wax scraper provided in the embodiment are described in detail.

[0035] In the embodiment, referring to Figure 1 , the wax scraping rod 1 is conical. Such design is beneficial to the sliding of the wax scraper on the inner wall of the oil pipe, so as to more effectively scrape the wax attached to the wall of the oil pipe.

[0036] More preferably, the wax scraping rod 1 is double-conical. Specifically, as shown in Figure 1 , from top to bottom, the wax scraping rod 1 is sequentially divided into an upper wax scraping section 11, a middle wax scraping section 12, a lower wax scraping section 13 and a tapered tip section 14, which are integrally formed; wherein the maximum diameter of the middle wax scraping section 12 is 58-59㎜, and optionally, the maximum diameter of the middle wax scraping section 12 is 58㎜, 58.5㎜ or 59㎜; from bottom to top, the diameter of the upper wax scraping section 11 gradually decreases, and optionally, the diameter of the upper end of the upper wax scraping section 11 is 38㎜; from top to bottom, the diameter of the lower wax scraping section 13 also gradually decreases, and optionally, the diameter of the lower end of the lower wax scraping section 13 is 38㎜; from top to bottom, the diameter of the tapered tip section 14 gradually decreases to zero.

[0037] With the above design, the wax scraping resistance can be reduced, which is beneficial to the up-and-down operation of the wax scraper in the oil pipe, so that the movement of the wax scraper is more smooth, and thick and thin wax and hard and soft wax can be scraped; for the case that the oil pipe is blocked by wax, the tapered tip section 14 can effectively break the blocking section, so as to ensure the smooth progress of wax scraping. In addition, the design of the double-conical wax scraping rod 1 can reduce the friction between the wax scraper and the inner wall of the oil pipe, so as to help protect the oil pipe, reduce wear and tear, and prolong the service life of the oil pipe.

[0038] Further, referring to Figure 1 , the lengths of the upper wax scraping section 11 and the lower wax scraping section 13 are equal. Such design is beneficial to the movement of the wax scraper when scraping wax up and down, because the resistance received by the wax scraper is similar.

[0039] In the embodiment, referring to Figure 1 , the integrated wax scraper further comprises a rigging 2, which is arranged at the end of the upper wax scraping section 11.

[0040] Specifically, the rigging 2 adopts a safety hook, a shackle or a D-ring. Taking the safety hook as an example, as shown in Figure 1 , the hook body of the safety hook is arranged through the upper wax scraping section 11 and can rotate around its own axis and the axis of the upper wax scraping section 11.

[0041] In application, the integrated wax scraper is connected with the steel wire rope through the safety hook, and when it is lowered into the oil pipe, it can maintain a vertical state under the action of its own gravity, uniformly scrapes the wax in the oil pipe, and ensures the comprehensiveness of wax scraping.

[0042] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An integrated wax scraper, characterized by, Comprising: a wax scraping rod (1) made of lead, which is provided with a helical groove on its side surface; the helical groove extends from one end to the other end of the wax scraping rod (1); the wax scraping rod (1) is tapered; along the axial direction of the wax scraping rod (1), the wax scraping rod (1) comprises an upper wax scraping section (11), a middle wax scraping section (12) and a lower wax scraping section (13) in sequence; from the middle of the middle wax scraping section (12) to the free end of the upper wax scraping section (11), the diameter of the wax scraping rod (1) gradually decreases; from the middle of the middle wax scraping section (12) to the free end of the lower wax scraping section (13), the diameter of the wax scraping rod (1) also gradually decreases; the lengths of the upper wax scraping section (11) and the lower wax scraping section (13) are equal.

2. The integrated wax scraper according to claim 1, wherein the maximum diameter of the middle wax scraping section (12) is 58-59mm.

3. The integrated wax scraper according to claim 2, wherein the diameters of the upper wax scraping section (11) and the lower wax scraping section (13) away from the middle wax scraping section (12) are both 38mm.

4. The integrated wax scraper according to claim 3, wherein the wax scraping rod (1) further comprises a tapered tip section (14) integrally formed with the lower wax scraping section (13), and the diameter of the tapered tip section (14) gradually decreases to zero away from the lower wax scraping section (13).

5. The integrated wax scraper according to claim 4, wherein the integrated wax scraper further comprises a rigging (2) provided at the end of the upper wax scraping section (11).

6. The integrated wax scraper according to claim 5, wherein the rigging (2) comprises a safety hook connected with the upper wax scraping section (11).

7. The integrated wax scraper according to claim 6, wherein the hook body of the safety hook is threaded through the upper wax scraping section (11) and can rotate around its own axis and the axis of the upper wax scraping section (11).

Images