CN219587551U

CN219587551U - Sleeve scraper

Info

Publication number: CN219587551U
Application number: CN202320473739.9U
Authority: CN
Inventors: 金业鑫; 柳杨
Original assignee: Mudanjiang Xinruide Petroleum Equipment Co ltd
Current assignee: Mudanjiang Xinruide Petroleum Equipment Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-08-25
Anticipated expiration: 2033-03-14

Abstract

The utility model relates to the field of drilling tools, in particular to a sleeve scraper, which aims to solve the technical problems that the pipe diameters of sleeves are not uniform, the prior art adopts a scraper to be replaced for treatment, and the working efficiency of the mode is very low, and comprises the following steps: the device body is internally provided with a cavity, one end of the cavity is connected with a motor, an output shaft of the motor is connected with a worm, the worm is meshed with a worm wheel, the worm wheel is connected with a threaded shaft, the threaded shaft is rotationally connected in the cavity, two threads which are opposite in rotation direction are arranged at two ends of the threaded shaft, two threaded supports are respectively connected with two threads in a threaded mode, the two threaded supports are respectively connected with two scraping sliding blocks, the scraping sliding blocks are in sealing sliding connection with the device body, the scraping diameters of the scrapers are adjusted by adjusting the telescopic sizes of the scraping sliding blocks, the operation of different pipe diameters is adapted, the working efficiency is high, liquid Kong Waizhi is enabled when the area of a scraping surface is increased by an external scraping rod, space is saved for the inside of the scrapers, and the device body is convenient to drive and seal.

Description

Sleeve scraper

Technical Field

The utility model relates to the field of drilling tools, in particular to a casing scraper.

Background

The pipeline which is put into the borehole and plays a role of lining is called a sleeve or a well pipe, the sleeve scraper is used for cutting the inner wall of the sleeve, removing cement, hard wax, salt scale and blasthole burrs on the inner wall of the sleeve, and is an important process for well repair operation and normal downhole operation, and the lower construction is carried out on the lower and normal operation of a downhole tool;

however, in the well, the pipe diameter of the casing is not uniform, the prior art adopts a scraper to be replaced, the working efficiency is very low, and the utility model solves the problems.

Disclosure of Invention

The utility model aims to solve the technical problem that in a well, the pipe diameters of the casing pipes are not uniform, the prior art adopts a scraper to process, and the working efficiency of the mode is very low, and further provides the casing pipe scraper.

A cannula scraper comprising: the device body is internally provided with a cavity, one end of the cavity is connected with a motor, an output shaft of the motor is connected with a worm, the worm is meshed with a worm wheel, the worm wheel is connected with a threaded shaft, the threaded shaft is rotationally connected in the cavity, two threads with opposite rotation directions are arranged at two ends of the threaded shaft, two threaded supports are respectively connected with two paths of threads in a threaded manner, two threaded supports are respectively connected with two scraping sliding blocks, and the scraping sliding blocks are in sealing sliding connection with the device body.

Further, a plurality of worm gears are connected to the worm in a meshed mode, vertically adjacent threaded shaft spaces are vertically arranged, and vertically adjacent scraping sliding blocks are arranged in a space staggered mode.

Further, the device body is connected with a scraping rod, a liquid outlet hole is formed in the scraping rod, and drilling fluid can be sprayed from the liquid outlet hole.

Further, the upper end of the device body is connected with a connector, a thread groove is formed in the upper portion of the connector, the thread groove is in threaded connection with the drill rod, an inclined hole is formed in the connector, and the liquid outlet hole is communicated with the thread groove through the inclined hole.

The utility model has the beneficial effects that:

1. the scraping diameter of the scraper is adjusted by adjusting the telescopic size of the scraping sliding block, so that the scraper is suitable for operation with different pipe diameters, and the working efficiency is high;

2. the external scraping rod improves the scraping surface area and simultaneously enables liquid to be discharged Kong Waizhi, so that space is saved for the inside of the scraper, and transmission and sealing are facilitated.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the structure of the present utility model;

FIG. 3 is a second schematic diagram of the structure of the present utility model;

FIG. 4 is a schematic cross-sectional view of a second embodiment of the present utility model.

In the figure: a body 1; a cavity 2; a motor 3; a worm 4; a worm wheel 5; a threaded shaft 6; a screw bracket 7; a scraping slide 8; a scraping rod 9; a liquid outlet hole 10; a joint 11; an inclined hole 12; a thread groove 13.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The rotating connection in the device means that the bearing is baked on the shaft, a spring retainer ring groove is arranged on the shaft or the shaft hole, and the axial fixation of the bearing is realized by clamping the spring retainer ring in the retainer ring groove, so that the rotation is realized; the hinge is a movable connection mode on the connecting parts such as the hinge, the pin shaft, the short shaft and the like.

The present utility model will be described in detail below with reference to the accompanying drawings.

Embodiment one:

the following describes a sleeve scraper of the embodiment with reference to fig. 1-4, which comprises a scraper body 1, wherein a cavity 2 is arranged in the scraper body 1, one end of the cavity 2 is connected with a motor 3, an output shaft of the motor 3 is connected with a worm 4, the worm 4 is meshed with a worm wheel 5, the worm wheel 5 is connected with a threaded shaft 6, the threaded shaft 6 is rotatably connected in the cavity 2, two threads with opposite rotation directions are arranged at two ends of the threaded shaft 6, two threaded brackets 7 are respectively connected with two paths of threads in a threaded manner, two threaded brackets 7 are respectively connected with two scraping sliding blocks 8, and the scraping sliding blocks 8 are in sealed sliding connection with the scraper body 1;

the drilling rod drives the ware body 1 to rotate, the ware body 1 drives the scraping slider 8 and rotates and accomplish the scraping to the sleeve pipe inner wall, the scraping slider 8 is under screw thread axle 6 and screw thread support 7, worm 4 and worm wheel 5's dual self-locking effect, can not move by oneself, when sleeve pipe diameter changes, open motor 3 and drive worm 4 and rotate, worm 4 drives worm wheel 5 and rotates, worm wheel 5 drives screw thread axle 6 and rotates, screw thread axle 6 both ends are equipped with two screw threads that revolve opposite directions, two screw threads of screw thread axle 6 drive two screw thread supports 7 and keep away from each other, two screw thread supports 7 drive two scraping sliders 8 and keep away from each other, the cutting diameter of scraper changes, accomplish the reducing.

The worm 4 is connected with a plurality of worm gears 5 in a meshed manner, vertically adjacent threaded shafts 6 are vertically arranged in space, and vertically adjacent scraping sliding blocks 8 are arranged in a space staggered manner;

the number of the scraping sliding blocks 8 is increased, and the scraping dead angles are effectively prevented from occurring when the scraping sliding blocks 8 rotate to lower pins by adding the scraping sliding blocks 8 in a vertical gap.

The device body 1 is connected with a scraping rod 9, a liquid outlet hole 10 is formed in the scraping rod 9, and the liquid outlet hole 10 can spray drilling fluid;

the scraping rod 9 is consistent with the material of the outer surface of the scraping sliding block 8, the scraping diameter of the scraping rod 9 is consistent with the scraping diameter of the scraping sliding block 8 when the scraping sliding block 8 is completely contracted, the scraping surface area is increased when the scraping sliding block 8 is completely contracted, the scraping efficiency and the scraping quality are improved, the liquid outlet hole 10 is arranged externally, the space is saved for the inside of the scraper, and the transmission and the sealing are convenient.

The upper end of the device body 1 is connected with a connector 11, a thread groove 13 is formed in the upper part of the connector 11, the thread groove 13 is in threaded connection with a drill rod, an inclined hole 12 is formed in the connector 11, and a liquid outlet hole 10 is communicated with the thread groove 13 through the inclined groove 12;

the device body 1 is connected with the drill rod through the thread groove 13 at the upper part of the joint 11, and drilling fluid is sprayed at two positions through the drill rod, the thread groove 13, the inclined hole 12 and the liquid outlet hole 10, so that scraping operation is not influenced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cannula scraper, characterized by: comprising the following steps: the device body (1), be equipped with cavity (2) in the device body (1), cavity (2) one end is connected with motor (3), motor (3) output shaft links to each other with worm (4), worm (4) are connected with worm wheel (5) meshing, worm wheel (5) link to each other with screw thread axle (6), screw thread axle (6) rotate and connect in cavity (2), screw thread axle (6) both ends are equipped with two screw threads opposite in the direction, two screw thread support (7) respectively with two way screw thread threaded connection, two screw thread support (7) link to each other with two scraping slider (8) respectively, scraping slider (8) and sealed sliding connection of the device body (1).

2. A casing scraper according to claim 1, wherein: the worm (4) is connected with a plurality of worm gears (5) in a meshed mode, vertically adjacent threaded shafts (6) are arranged vertically in space, and vertically adjacent scraping sliding blocks (8) are arranged in a space staggered mode.

3. A casing scraper according to claim 1, wherein: the device body (1) is connected with a scraping rod (9), a liquid outlet hole (10) is formed in the scraping rod (9), and drilling fluid can be sprayed through the liquid outlet hole (10).

4. A casing scraper according to claim 3, wherein: the device is characterized in that the upper end of the device body (1) is connected with a connector (11), a thread groove (13) is formed in the upper portion of the connector (11), the thread groove (13) is in threaded connection with a drill rod, an inclined hole (12) is formed in the connector (11), and the liquid outlet hole (10) is communicated with the thread groove (13) through the inclined hole (12).