Hydraulic pipe scraper for petroleum drilling

Abstract

The utility model discloses a petroleum drilling hydraulic pipe scraper which comprises a casing pipe structure, a hydraulic adjusting structure is arranged in the casing pipe structure, the casing pipe structure comprises a casing pipe body with the interior of a hollow structure, a through groove is formed in the surface of the casing pipe body in a penetrating mode, and meanwhile a sliding block is fixedly installed in the through groove in an embedded mode. A threaded connecting pipe is installed on the upper portion of the sleeve body in an embedded and penetrating mode, a connecting base is fixedly welded to the upper surface of the sleeve body, meanwhile, a lifting lug facilitating penetrating connection of a steel wire rope is fixedly installed on the upper portion of the connecting base, a pipeline connecting base is installed on one side of the sleeve body in an embedded mode, and a liquid outlet pipe is installed at one end of the pipeline connecting base. The sliding blocks are matched with the sliding grooves in a sliding mode, the sliding grooves are formed in the two sides of the tool apron, meanwhile, a scraper is fixedly installed right in front of the tool apron, and the hydraulic pipe scraper for petroleum drilling plays a role in hoisting placement and lifting through the arranged lifting lugs.

Description

Technical Field

[0001] This utility model relates to the field of oil drilling technology, specifically to a hydraulic scraper for oil drilling. Background Technology

[0002] Casing scrapers are used to remove cement blocks, hard wax, various salt crystals and deposits, burrs, rust, etc., remaining on the inner wall of the casing, so that various downhole tools can be smoothly run into the casing. Especially when the annular space between the downhole tool and the inner wall of the casing is small, it is even more important to scrape thoroughly before proceeding to the next step. At present, the use of scrapers has become an indispensable procedure in some oilfields in China and some oil and gas well operations abroad. The scraper blade of the casing scraper is supported by a radial spring. During use, due to the influence of spring force, the scraping force between the scraper blade and the inner wall of the casing may be insufficient. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of the existing technology by providing a hydraulic casing scraper for oil drilling, which solves the problem mentioned in the background art where the scraper blade is supported by a radial spring, resulting in insufficient scraping force between the scraper blade and the inner wall of the casing due to the influence of spring force during use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic scraper for oil drilling, comprising a casing structure, wherein a hydraulic adjustment structure is provided inside the casing structure;

[0005] The sleeve structure includes a sleeve body with a hollow internal structure, and a through groove is opened on the surface of the sleeve body, while a slider is embedded and fixedly installed inside the through groove.

[0006] A threaded connecting pipe is embedded and installed through the top of the sleeve body, and a connecting seat is welded and fixedly installed on the upper surface of the sleeve body. At the same time, a lifting lug is fixedly installed above the connecting seat to facilitate the connection of the steel wire rope.

[0007] By adopting the above technical solution, the lifting lugs are used to achieve hoisting, placement, and lifting.

[0008] Preferably, a pipe connector is embedded in one side of the sleeve body, and a liquid outlet pipe is installed at one end of the pipe connector.

[0009] By adopting the above technical solution, the installation connection is achieved through the set pipeline connection.

[0010] Preferably, the slider is matched with the slide groove, and the slide groove is opened on both sides of the tool holder, while a scraper is fixedly installed in front of the tool holder.

[0011] By adopting the above technical solution, the sliding mechanism is achieved through the setting of sliders.

[0012] Preferably, the hydraulic adjustment structure includes a hydraulic hollow cavity installed inside the casing body, and the upper part of the hydraulic hollow cavity is embedded and connected to a threaded connecting pipe. At the same time, a hydraulic pump is installed inside the hydraulic hollow cavity, and the hydraulic pump is connected to the other end of the pipe connecting seat through a connecting pipe.

[0013] By adopting the above technical solution, the hydraulic pump is used to achieve the function of extraction and transportation.

[0014] Preferably, a through pipe is embedded in and installed on the surface of the hydraulic hollow cavity, and a push plate is slidably installed inside the through pipe. At the same time, a push rod is fixedly installed on one side of the push plate, and the push rod is fixedly installed on the rear side of the tool holder.

[0015] By adopting the above technical solution, the push rod is set to achieve the purpose of pushing and adjusting.

[0016] Preferably, there are four through pipes, and each through pipe is arranged in a "convex" shape.

[0017] By adopting the above technical solution, the set through pipes achieve embedded and continuous connection.

[0018] Compared with the prior art, the beneficial effects of this utility model are: this oil drilling hydraulic scraper,

[0019] (1) This case solves the problem that the scraper of the casing scraper is supported by radial springs and the scraping force between the scraper and the inner wall of the casing is insufficient due to the influence of spring force during use. When the hydraulic oil is delivered into the casing body, it is delivered into the through pipe. The hydraulic oil entering the through pipe drives the push plate and push rod to move under force. When the push rod moves under force, it pushes the scraper seat to slide and make the scraper contact the inner wall of the pipe, thus facilitating the scraping and cleaning of the inner wall of the pipe.

[0020] (2) By setting up a sleeve structure, it is not only convenient to hoist the entire sleeve body into the pipe of different lengths for scraping treatment, but also avoids the existing scraper not having a pushing support force, which causes the scraper to be easily deflected by the force and unable to scrape and clean the inner wall of the pipe. Attached Figure Description

[0021] Figure 1 This is a frontal cross-sectional view of the present invention.

[0022] Figure 2 This is a schematic diagram of the structure of the sleeve body, threaded connecting pipe, connecting seat, lifting lug, pipe connecting seat, liquid outlet pipe and scraper of this utility model;

[0023] Figure 3 This is a schematic diagram of the sleeve body, through groove, slider and threaded connecting pipe structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the slide, blade holder, and scraper structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the hydraulic adjustment structure of this utility model.

[0026] In the diagram: 1. Sleeve structure; 101. Sleeve body; 102. Through groove; 103. Slider; 104. Threaded connecting pipe; 105. Connecting seat; 106. Lifting lug; 107. Pipe connecting seat; 108. Liquid outlet pipe; 109. Slide groove; 1010. Knife holder; 1011. Scraper; 2. Hydraulic adjustment structure; 201. Hydraulic hollow cavity; 202. Hydraulic pump; 203. Through pipe; 204. Push plate; 205. Push rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution: a hydraulic scraper for oil drilling, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the device includes a sleeve structure 1, which comprises a hollow sleeve body 101. A through groove 102 is formed on the surface of the sleeve body 101, and a slider 103 is fixedly installed inside the through groove 102. A threaded connecting pipe 104 is embedded and installed above the sleeve body 101, and a connecting seat 105 is welded and fixedly installed on the upper surface of the sleeve body 101. A lifting lug 106 for easy wire rope connection is fixedly installed above the connecting seat 105. A pipe connecting seat 107 is embedded and installed on one side of the sleeve body 101, and a liquid outlet pipe 108 is installed at one end of the pipe connecting seat 107. The slider 103 slides in conjunction with the slide groove 109, which is located on both sides of the tool holder 1010. A scraper 1011 is fixedly installed in front of the tool holder 1010. Four through slots 102 are provided, and one set of sliders 103 is fixedly installed inside each through slot 102. A hydraulic gauge is embedded in one side of the threaded connecting pipe 104 to detect the pressure of the injected hydraulic oil, thereby preventing the body from bursting due to excessive hydraulic oil pressure. The threaded connecting pipe 104 is also convenient for the injection of hydraulic oil when connected to the external hydraulic oil pipeline.

[0029] like Figure 5 As shown, the sleeve structure 1 is equipped with a hydraulic adjustment structure 2. The hydraulic adjustment structure 2 includes a hydraulic hollow cavity 201 installed inside the sleeve body 101. The upper part of the hydraulic hollow cavity 201 is embedded and connected to the threaded connecting pipe 104. At the same time, a hydraulic pump 202 is installed inside the hydraulic hollow cavity 201. The hydraulic pump 202 is connected to the other end of the pipe connecting seat 107 through the connecting pipe. A through pipe 203 is embedded and installed on the surface of the hydraulic hollow cavity 201. There are 4 through pipes 203, and each through pipe 203 is arranged in a "convex" shape. When the above-mentioned components are arranged in 4 ways, this not only reflects the practicality of the installation of the above-mentioned components. The functionality also reflects the through-connection and internal sliding and pushing adjustment of the above-mentioned components. Furthermore, the presence of four such components effectively demonstrates the axial and longitudinal symmetry of the components and the aesthetic appeal of their symmetrical arrangement. When a single through-pipe 203 is arranged in a "convex" shape, it changes the hydraulic oil delivery area, giving the hydraulic oil a greater pushing force so that when the scraper 1011 contacts the inner wall of the pipe, it scrapes and cleans the inner wall of the pipe. The through-pipe 203 is equipped with a sliding push plate 204, and a push rod 205 is fixedly installed on one side of the push plate 204. The push rod 205 is fixedly installed on the rear side of the cutter holder 1010.

[0030] In the above scheme, after the external oil pipe and the outlet pipe 108 are connected to the threaded connecting pipe 104 and the collection box respectively, the sleeve body 101 is lowered into the pipeline using a steel wire rope. Then, hydraulic oil is transported into the hydraulic hollow cavity 201 through the threaded connecting pipe 104. The hydraulic oil inside the hydraulic hollow cavity 201 is transported into the through pipe 203. When the hydraulic oil inside the through pipe 203 pushes the push plate 204 and the push rod 205 to move under force, the knife holder 1010 carries the scraper 1011 to move under force and contact the inner wall of the pipeline. When the scraper 1011 contacts the inner wall of the pipeline, the steel wire rope is pulled up and down, thereby driving the scraper 1011 to scrape and clean the inner wall of the pipeline. After the inner wall of the pipeline is cleaned, the hydraulic pump 202 is controlled to work, thereby drawing and collecting the hydraulic oil through the outlet pipe 108. At the same time, the scraper 1011 is separated from the inner wall of the pipeline, making it easy to pull out the sleeve body 101.

[0031] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A petroleum drilling fluid pressure pipe scraper comprising a casing structure (1), characterized in that: The sleeve structure (1) is internally provided with a hydraulic adjusting structure (2); The sleeve structure (1) comprises a sleeve body (101) with a hollow structure, and a through groove (102) is formed through the surface of the sleeve body (101), and a sliding block (103) is embeddedly and fixedly installed in the through groove (102); The sleeve body (101) is embeddedly and fixedly installed with a threaded connecting pipe (104) above, and a connecting seat (105) is welded and fixedly installed on the surface above the sleeve body (101), and a lug (106) for facilitating the penetration of the steel wire rope is fixedly installed above the connecting seat (105).

2. A petroleum drilling fluid swabber as defined in claim 1, wherein: The sleeve body (101) is embeddedly installed with a pipeline connecting seat (107) on one side, and an outlet pipe (108) is installed at one end of the pipeline connecting seat (107).

3. A hydraulic pipe scraper for use in drilling oil wells as defined in claim 1, characterized in that: The sliding block (103) is slidably matched with a sliding groove (109), and the sliding groove (109) is formed on both sides of the tool seat (1010), and a scraper (1011) is fixedly installed in front of the tool seat (1010).

4. A pipe scraper for use in oil drilling fluid pressure according to claim 1, characterized in that: The hydraulic adjusting structure (2) comprises a hydraulic hollow cavity (201) installed in the sleeve body (101), and the hydraulic hollow cavity (201) is embeddedly and penetratively connected with the threaded connecting pipe (104) above, and a hydraulic pump (202) is installed in the hydraulic hollow cavity (201).

5. A petroleum drilling fluid swab as defined in claim 4, wherein: The surface of the hydraulic hollow cavity (201) is embeddedly and penetratively installed with a through pipe (203), and a push disc (204) is slidably and matchedly installed in the through pipe (203), and a push rod (205) is fixedly installed on one side of the push disc (204), and the push rod (205) is fixedly installed on the rear side of the tool seat (1010).

6. A petroleum drilling fluid swab as defined in claim 5, wherein: The through pipe (203) is provided with four, and each through pipe (203) is provided in a "U" shape.

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