CN212272124U

CN212272124U - Mud scraping device suitable for overhaul well repairing drill rod

Info

Publication number: CN212272124U
Application number: CN202020496558.4U
Authority: CN
Inventors: 罗亚魁; 张震; 张喜闻; 焦石; 李赫楠; 乔景智; 王正勇; 张伟; 冷喜宝; 李海福; 高树国; 吉杨; 首云波
Original assignee: China National Petroleum Corp
Current assignee: China National Petroleum Corp
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-01-01
Anticipated expiration: 2030-04-08

Abstract

The utility model discloses a mud scraping device suitable for overhaul well drilling rod, including bearing benefit heart (1), right rubber core cover (2) and rubber core section of thick bamboo (3), bear roof (11) and lower lateral wall (12) that benefit heart (1) contains connection from top to bottom, the middle part of roof (11) is equipped with central through-hole (13), right rubber core cover (2) contain upper lateral wall (21) and bottom plate (22) of connecting from top to bottom, the middle part of bottom plate (22) is equipped with down central through-hole (23), be equipped with interior cavity (24) in positive rubber core cover (2), highly being less than the height of interior cavity (24) of rubber core section of thick bamboo (3), the external diameter of rubber core section of thick bamboo (3) is less than the diameter of interior cavity (24). This mud scraping device suitable for overhaul workover drilling rod is under not changing current equipment facility structure, and the mud scraping device of design preparation drilling rod can clear up drilling rod outer wall pollutant when playing to bore, and the installation is simple, does not influence normal tripping, and clears up effectually.

Description

Mud scraping device suitable for overhaul well repairing drill rod

Technical Field

The utility model relates to an oil field production facility field, specific is a mud scraping device suitable for overhaul well workover drilling rod.

Background

When the well is overhauled and the shaft bottom is changed, because the condition in the well and the needs of creeping into, the workover fluid must use mud, and the drilling rod outer wall can adhere to the mud greasy dirt and take out from the pit shaft when tripping, and unrestrained to the rig floor, seriously influences the operational environment of rig floor, causes the muddy wet and slippery in place, inconvenient construction, influences production safety. The construction well is generally surrounded by environment protection areas such as a reed field, a rice field, a fish pond and the like, and if mud and oil on a drill rod stand column are not cleaned, large-area pollution can be caused when the mud and the oil are blown to the outside of a well site in the wind. In current HSE (health, safety, environmental) management situations, cleaning up mud on drill pipe from the drill is a necessary task.

SUMMERY OF THE UTILITY MODEL

In order to clear up the pollutant of drilling rod outer wall when the brill that rises, the utility model provides a mud scraping device suitable for overhaul well workover drilling rod, this mud scraping device suitable for overhaul well drilling rod under not changing current equipment facility structure, the mud scraping device is scraped to the design preparation drilling rod, can clear up drilling rod outer wall pollutant when playing to bore, and the installation is simple, does not influence normal brill that rises, and clears up effectually.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a scrape mud device suitable for overhaul well repair drilling rod, including bearing the benefit heart, right rubber core cover and rubber core section of thick bamboo, bear and mend the heart and contain roof and the lower lateral wall of connecting from top to bottom, the middle part of roof is equipped with central through-hole, right rubber core cover and contain last lateral wall and the bottom plate of connecting from top to bottom, the middle part of bottom plate is equipped with down central through-hole, the lower lateral wall that bears the benefit heart and the last lateral wall of positive rubber core cover are tubular structure, this lower lateral wall and last lateral wall threaded connection, be equipped with interior cavity in the positive rubber core cover, rubber core section of thick bamboo is located interior cavity, go up central through-hole's axis, the axis of rubber core section of thick bamboo and the coincidence of center through-hole down, the height that highly is less than interior cavity of rubber core section of thick bamboo.

The outer contour of the cross section of the bearing bushing is square, and the diameter of the upper central through hole is equal to that of the lower central through hole.

The left and right sides of roof all is equipped with rectangular shape recess, and rectangular shape recess's up end is located the upper surface of roof, and rectangular shape recess is parallel with the left side surface of roof.

Be equipped with the bolt through-hole in the roof, the bolt through-hole intercommunication rectangular shape recess and the front side outer surface of roof and the rear side outer surface of roof.

The axis of the bolt through hole is parallel to the upper surface of the top plate, the axis of the bolt through hole is parallel to the outer surface of the left side of the top plate, and the bolt through hole is connected with the lower end of the strip-shaped groove.

The lower surface of the top plate is connected with four lower convex blocks, the four lower convex blocks are uniformly arranged at intervals along the circumferential direction of the upper central through hole, and a space exists between each lower convex block and the lower side wall.

The mud scraping device suitable for overhauling the well drilling rod further comprises an annular rubber band, the rubber band bypasses the two lower protruding blocks, and the rubber band is in a tensioning state.

The outer surface of the upper side wall comprises an external thread section and an external conical section which are connected up and down, the inner surface of the lower side wall is provided with internal threads, and the external thread section of the upper side wall is in threaded connection with the lower side wall.

The inner diameter of the rubber core cylinder is smaller than the diameter of the upper central through hole, and the inner diameter of the rubber core cylinder is smaller than the diameter of the lower central through hole.

The utility model has the advantages that: the processing and manufacturing process is simple, the drill floor core supplementing groove is installed in the drill floor core supplementing groove, normal drilling is not influenced, the installation and the disassembly are convenient, the operation of a special person is not needed after the installation is finished, and the working condition of the cleaning device can be visually observed. The three-stage cleaning mode has good effect of cleaning the outer wall of the drill rod and has good effect of controlling well site pollutants.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.

Figure 1 is a front view of a mud scraping device suitable for overhauling a well drilling rod according to the invention in example 1.

Figure 2 is a top view of a mud scraping device suitable for overhauling a well drilling rod according to the invention in example 1.

3 fig. 3 3 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 a 3- 3 a 3 in 3 fig. 3 2 3. 3

Fig. 4 is a sectional view of a bearing bushing in example 1.

Figure 5 is a cross-sectional view of a centralizing core sleeve in example 1.

Fig. 6 is a schematic view showing the use state of the mud scraping device suitable for overhauling the well drilling rod in the embodiment 1.

Fig. 7 is a plan view of a bearing bushing in example 2.

Fig. 8 is a bottom view of the bearing bushing in embodiment 2.

Fig. 9 is a sectional view taken along the direction B-B in fig. 7.

Figure 10 is an assembly drawing of a mud scraping device suitable for overhauling a well drilling rod according to the invention in example 2.

1. Carrying and supplementing a core; 2. righting the rubber core sleeve; 3. a rubber core cylinder; 4. a rubber band; 5. a drill stem; 6. a drill floor;

11. a top plate; 12. a lower sidewall; 13. an upper central through hole; 14. a strip-shaped groove; 15. a bolt through hole; 16. a lower bump;

21. an upper sidewall; 22. a base plate; 23. a lower central through hole; 24. an inner cavity; 25. an external threaded section; 26. an outer conical section.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

A mud scraping device suitable for an overhaul well drilling rod comprises a bearing bushing 1, a centering rubber core sleeve 2 and a rubber core cylinder 3, wherein the bearing bushing 1 comprises a top plate 11 and a lower side wall 12 which are connected up and down, an upper central through hole 13 is arranged in the middle of the top plate 11, the centering rubber core sleeve 2 comprises an upper side wall 21 and a bottom plate 22 which are connected up and down, a lower central through hole 23 is arranged in the middle of the bottom plate 22, the lower side wall 12 of the bearing bushing 1 and the upper side wall 21 of the centering rubber core sleeve 2 are both of a cylindrical structure, the lower side wall 12 of the bearing bushing 1 is in threaded connection with the upper side wall 21 of the centering rubber core sleeve 2, an inner cavity 24 is arranged in the centering rubber core sleeve 2, the rubber core cylinder 3 is positioned in the inner cavity 24, the axis of the upper central through hole 13, the axis of the rubber core cylinder 3 and the axis of the lower central through hole 23 coincide, the height of the rubber core cylinder 3 is smaller than that of the inner cavity 24, the outer diameter of the, the outer diameter of the cartridge 3 is smaller than the inner diameter of the upper side wall 21, as shown in fig. 1 to 3.

In the present embodiment, the outer shape of the bearing bushing 1 is the same as that of the existing split square bushing, the outer profile of the cross section of the bearing bushing 1 is square, and the diameter of the upper central through hole 13 is equal to that of the lower central through hole 23. During operation, the square bushing in the bushing groove above the existing drilling platform 6 can be replaced, and the installation is convenient.

In this embodiment, the left and right sides of the top plate 11 are provided with the elongated grooves 14, the two elongated grooves 14 are parallel to each other, the upper end surfaces of the elongated grooves 14 are located on the upper surface of the top plate 11, the length direction of the elongated grooves 14 is parallel to the left outer surface of the top plate 11, and the length direction of the elongated grooves 14 is parallel to the right outer surface of the top plate 11.

In this embodiment, a pin through hole 15 is formed in the top plate 11, and the pin through hole 15 communicates the elongated groove 14 with the front outer surface of the top plate 11 and the rear outer surface of the top plate 11. The number of the bolt through holes 15 is four, and the mud scraping device suitable for overhauling the well drilling rod can be fixed on the drilling platform 6 by inserting pins into the bolt through holes 15. The axis of the bolt through hole 15 is parallel to the upper surface of the top plate 11, the axis of the bolt through hole 15 is parallel to the left outer surface of the top plate 11, and the bolt through hole 15 is connected with the lower end of the elongated groove 14.

In this embodiment, the outer surface of the upper sidewall 21 includes an external thread section 25 and an external tapered section 26 which are connected up and down, the inner surface of the lower sidewall 12 is provided with an internal thread, the outer diameter of the upper end of the external tapered section 26 is larger than the outer diameter of the lower end of the external tapered section 26, the external thread section 25 of the upper sidewall 21 is in threaded connection with the internal thread of the lower sidewall 12, as shown in fig. 3, 4 and 5, the threaded connection of the bearing bushing 1 and the centering rubber core sleeve 2 does not affect the hanging and removing of the elevator.

In the present embodiment, the inner diameter of the core barrel 3 is smaller than the diameter of the upper central through hole 13, and the inner diameter of the core barrel 3 is smaller than the diameter of the lower central through hole 23. When the rubber core barrel 3 is sleeved outside the drill rod 5, the rubber core barrel 3 can move up and down and left and right. The internal diameter of a rubber core cylinder 3 depends on the external diameter of a drill rod 5, the rubber core cylinder 3 is in clearance fit with the drill rod 5, the rubber core cylinder 3 is made of rubber materials sold in the market, the rubber core cylinder 3 is high in strength and wear-resistant, and the elasticity can allow the drill rod body to not deform destructively after the transition to a coupling. Bear and mend heart 1 and can formula structure as an organic whole, right gluey core cover 2 and can formula structure as an organic whole, bear and mend the material of heart 1 and right gluey core cover 2 and be metal, for example steel.

The operation of the mud scraping device suitable for overhauling the well drilling rod is described below.

The bearing bushing 1, the centering rubber core sleeve 2 and the rubber core cylinder 3 are sleeved outside the drill rod 5, the bearing bushing 1 is in threaded connection with the centering rubber core sleeve 2, the mud scraping device suitable for the overhaul well repairing drill rod is installed in a bushing groove of a drill floor 6, the mud scraping device suitable for the overhaul well repairing drill rod is fixedly connected with the drill floor 6 through pins, and an inner pin hole corresponding to the bolt through hole 15 is formed in the drill floor 6, as shown in fig. 6. At the in-process that drilling rod 5 reciprocated, rubber core section of thick bamboo 3 is located all the time and rights rubber core cover 2 to clear up the surface of drilling rod 5, rubber core section of thick bamboo 3 can move about from top to bottom, even drilling rod 5 does not influence the clearance effect between two parties yet.

This mud scraping device suitable for overhaul workover drilling rod clears up drilling rod outer wall pollutant when the brill, and the installation is simple and convenient, does not influence normal brill, does not need the special messenger to operate. The alignment 40-checking 1C well, the alignment 40-01-K022 well and the alignment 40-10-026 well use experiments play a good role in cleaning mud, temporary plugging agents, oil stains and the like attached to the outer wall of the drill rod during tripping, the installation and the disassembly are convenient, and the service life of the mud scraping rubber core reaches 466 drill rods.

Example 2

The present embodiment is a modification of embodiment 1, and the present embodiment is mainly different from embodiment 1 in that four lower protrusions 16 are connected to the lower surface of the top plate 11, the four lower protrusions 16 are uniformly spaced along the circumferential direction of the upper central through hole 13, and a space exists between the lower protrusions 16 and the lower sidewall 12. The mud scraping device suitable for overhauling the well drilling rod further comprises an annular rubber band 4, the rubber band 4 bypasses two lower opposite protruding blocks 16, the rubber band 4 is in a tensioning state, the two rubber bands 4 are approximately in a # -shape, the rubber band 4 and the rubber core barrel 3 are arranged up and down, during use, the drilling rod 5 penetrates through a center hole in the # -shape, and the rubber band 4 can carry out secondary cleaning on the outer surface of the drilling rod 5, as shown in fig. 7 to 10.

In this embodiment, the upper end of the upper side wall 21 of the centering core sleeve 2 abuts against the lower boss 16 to prevent the rubber band 4 from separating from the bearing core 1. The rubber band 4 can be made of the existing rubber material with high strength and wear resistance, and the section of the rubber band 4 can be circular or square.

Other technical features of this embodiment are the same as those of embodiment 1, and this embodiment will not be described in detail for the sake of brevity.

For convenience of understanding and description, the present invention is expressed in terms of absolute positional relationship, in which the directional word "up" indicates the upper direction of fig. 3, "down" indicates the lower direction of fig. 3, "left" indicates the left direction of fig. 3, and "right" indicates the right direction of fig. 3. The present invention is described by using the observation angle of the reader, but the above-mentioned orientation words can not be understood or interpreted as the limitation of the protection scope of the present invention.

The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. In addition, the utility model provides an between technical feature and the technical feature, between technical feature and technical scheme, technical scheme and the technical scheme all can the independent assortment use.

Claims

1. The mud scraping device suitable for the overhaul well drilling rod is characterized by comprising a bearing bushing (1), a centering rubber core sleeve (2) and a rubber core cylinder (3), wherein the bearing bushing (1) comprises a top plate (11) and a lower side wall (12) which are connected up and down, an upper central through hole (13) is formed in the middle of the top plate (11), the centering rubber core sleeve (2) comprises an upper side wall (21) and a bottom plate (22) which are connected up and down, a lower central through hole (23) is formed in the middle of the bottom plate (22), the lower side wall (12) of the bearing bushing (1) and the upper side wall (21) of the centering rubber core sleeve (2) are both of a cylindrical structure, the lower side wall (12) is in threaded connection with the upper side wall (21), an inner cavity (24) is formed in the centering rubber core sleeve (2), the rubber core cylinder (3) is located in the inner cavity (24), and the axis of the upper central through hole (13), The axis of the rubber core cylinder (3) is coincided with the axis of the lower central through hole (23), the height of the rubber core cylinder (3) is smaller than that of the inner cavity (24), and the outer diameter of the rubber core cylinder (3) is smaller than the diameter of the inner cavity (24).

2. Mud scraping device suitable for overhauling a well drilling rod according to claim 1, characterized in that the outer profile of the cross section of the bearing bushing (1) is square, and the diameter of the upper central through hole (13) is equal to the diameter of the lower central through hole (23).

3. The mud scraping device suitable for overhauling a well drilling rod according to claim 1, wherein the left side and the right side of the top plate (11) are both provided with elongated grooves (14), the upper end surfaces of the elongated grooves (14) are positioned in the upper surface of the top plate (11), and the elongated grooves (14) are parallel to the outer surface of the left side of the top plate (11).

4. The mud scraping device suitable for overhauling a well drilling rod according to claim 3, wherein a bolt through hole (15) is formed in the top plate (11), and the bolt through hole (15) is communicated with the elongated groove (14) and the outer surface of the front side of the top plate (11) and the outer surface of the rear side of the top plate (11).

5. A mud scraping apparatus adapted for use in overhauling a well drilling rod according to claim 3, wherein the axis of the pin through hole (15) is parallel to the upper surface of the top plate (11), the axis of the pin through hole (15) is parallel to the left outer surface of the top plate (11), and the pin through hole (15) is connected to the lower end of the elongated groove (14).

6. The mud scraping device suitable for overhauling a well drilling rod according to the claim 1, characterized in that four lower lugs (16) are connected to the lower surface of the top plate (11), the four lower lugs (16) are uniformly arranged at intervals along the circumference of the upper central through hole (13), and a space exists between the lower lugs (16) and the lower side wall (12).

7. The mud scraping device for the overhaul of well drilling rods according to claim 6, further comprising an annular rubber band (4), wherein the rubber band (4) bypasses the two opposite lower protruding blocks (16), and the rubber band (4) is in a tensioned state.

8. The mud scraping device suitable for overhauling a well drilling rod as recited in claim 1, wherein the outer surface of the upper side wall (21) comprises an external thread section (25) and an external conical section (26) which are connected up and down, the inner surface of the lower side wall (12) is provided with internal threads, and the external thread section (25) of the upper side wall (21) is in threaded connection with the lower side wall (12).

9. The mud scraping device suitable for overhauling a well drilling rod according to claim 1, wherein the inner diameter of the rubber core cylinder (3) is smaller than the diameter of the upper central through hole (13), and the inner diameter of the rubber core cylinder (3) is smaller than the diameter of the lower central through hole (23).