CN218324771U

CN218324771U - Hollow sucker rod for well washing

Info

Publication number: CN218324771U
Application number: CN202222771090.7U
Authority: CN
Inventors: 赵燕滨; 赵心武; 刘田
Original assignee: Shengli Oilfield Huabin Mechanism Pipe Co ltd
Current assignee: Shengli Oilfield Huabin Mechanism Pipe Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-01-17
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a hollow sucker rod for well-flushing, its technical scheme includes: the oil rod device comprises a connecting seat, an oil rod A and an oil rod B, wherein the outer surface of one end of the oil rod A is provided with the connecting seat, the inner surface of the connecting seat is sleeved with the oil rod B through threads, four angular positions of the inner surface of the connecting seat are all sleeved with positioning pins, the outer surface of the connecting seat is sleeved with a positioning sleeve through threads, one side, close to the positioning sleeve, of the outer surface of the connecting seat is sleeved with a locking sleeve through threads, the outer surface of the oil rod B is located at the position of the positioning pin and is provided with a clamping groove, and the tail end of the positioning pin is clamped inside the clamping groove. The utility model provides a hollow sucker rod for well-flushing has solved most of hollow sucker rods and has relied on the screw thread to close soon and connect, in the use, closes a department atress soon great, very easily leads to the junction to drop, influences its problem of normal use, has improved the firm in connection degree of sucker rod to the normal use of sucker rod has been guaranteed.

Description

Hollow sucker rod for well washing

Technical Field

The utility model relates to a well-flushing technical field specifically is a hollow sucker rod is used in well-flushing.

Background

The well washing is a process that a well washing medium is injected by pumping equipment through a shaft or a drill rod in the process of well repairing operation and the substances in the shaft are carried to the ground so as to change the property of the medium in the shaft and meet the operation requirement, and the well washing medium needs to be transmitted by using a hollow sucker rod in the process of well washing.

Through mass search, the vacuum double-layer hollow sucker rod disclosed as CN202866683U in the prior art is found to have simple and reasonable structure, good heat insulation performance, reduced operation cost, effectively prolonged service life of the hollow sucker rod and is suitable for oil extraction production operation of heavy oil and high-condensation oil.

The existing hollow sucker rod is connected by screwing threads in most cases, the stress of the screwed part is large in the using process, the connected part is easy to fall off, and the normal use of the hollow sucker rod is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hollow sucker rod for well-flushing possesses the advantage of multiple location connection, has solved most single screw thread of relying on of current hollow sucker rod and has closed soon and connect, in the use, closes the department atress soon great, very easily leads to the junction to drop, influences its problem of normal use.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a hollow sucker rod for well washing, includes connecting seat, oil pole A and oil pole B, wherein oil pole A one end surface mounting has the connecting seat, the oil pole B has been cup jointed through the screw thread to the connecting seat internal surface, the locating pin has all been cup jointed in four angular position departments of connecting seat internal surface, the locating sleeve has been cup jointed through the screw thread to the connecting seat external surface, the connecting seat external surface is close to locating sleeve one side and has been cup jointed the lock sleeve through the screw thread, oil pole B external surface is located locating pin position department and is equipped with the draw-in groove, the locating pin end clamps inside the draw-in groove.

Preferably, the connecting seat is internally provided with a spring groove on the outer surface of the positioning pin, and the outer surface of the positioning pin is arranged in the spring groove and provided with a spring through a spring seat.

Preferably, the position of the inner surface of the connecting seat, which is close to the positioning pin, is provided with a sealing groove, and a sealing ring is arranged on the inner surface of the sealing groove.

Preferably, the inner surface of the oil rod A is close to one end of the oil rod B, and the outer surface of the oil rod B is close to one end of the oil rod A, and a sealing gasket is arranged on one side, close to the oil rod B, of the inner surface of the oil rod A.

Preferably, the inner surfaces of the oil rod A and the oil rod B are both provided with inner rods, and the inner surfaces of the oil rod A and the oil rod B are positioned in the gap position of the inner rods and are filled with heat insulation layers.

Preferably, the inner parts of the oil rod A and the oil rod B close to the outer surface are provided with vacuum grooves.

Preferably, the inner surface of the positioning sleeve and the top of the positioning pin are in conical fit.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a set up locating pin, position sleeve and lock sleeve, reach the effect of stable butt joint sucker rod, through position sleeve extrusion locating pin, go into the draw-in groove with the locating pin card inside to solve most hollow sucker rod singles and rely on the screw thread to close soon and connect, in the use, close the department atress soon great, very easily lead to the junction to drop, influence its normal use's problem, improved the firm in connection degree of sucker rod, thereby guaranteed the normal use of sucker rod.

2. The utility model discloses a set up vacuum tank, interior pole and heat preservation, reach and carry out heat retaining effect to well-flushing medium to the overheated water cooling is too fast in solving the well-flushing medium, very easily influences the problem of crystallization wax treatment effect, reduces the cooling rate of well-flushing medium, thereby has guaranteed the treatment effect to the inside crystallization wax of oil well.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

FIG. 3 is an enlarged view of B in FIG. 1;

fig. 4 is a schematic view of the cross-sectional structure of the oil rod a of the present invention.

Reference numerals: 1. a connecting seat; 2. an oil rod A; 3. an oil rod B; 4. a gasket; 5. a card slot; 6. a seal ring; 7. a sealing groove; 8. a spring; 9. a locking sleeve; 10. positioning pins; 11. a positioning sleeve; 12. a spring seat; 13. a spring slot; 14. a vacuum tank; 15. an inner rod; 16. and (7) an insulating layer.

Detailed Description

The following describes the technical solution of the present invention with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-4, in order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a hollow sucker rod for well washing, including connecting seat 1, oil pole A2 and oil pole B3, oil pole A2 one end surface mounting has connecting

seat

1, 1 internal surface of connecting seat has cup jointed oil pole B3 through the screw thread, locating pin 10 has all been cup jointed to four angular position departments of 1 internal surface of connecting seat, 1 external surface of connecting seat has cup jointed position sleeve 11 through the screw thread, 1 external surface of connecting seat is close to 11 one side of position sleeve and has cup jointed lock sleeve 9 through the screw thread, oil pole B3 external surface is located locating pin 10 position department and is equipped with draw-in

groove

5, 10 terminal clamps of locating pin is inside draw-in

groove

5, 1 internal surface of connecting seat is located locating pin 10 external surface and is equipped with

spring groove

13, 10 external surface of locating pin is located spring groove 13 inside and installs spring 8 through spring holder 12, extrude locating pin 10 through setting up spring 8, conveniently demolish oil pole B3, 1 internal surface is close to locating pin 10 position department and is equipped with

seal groove

7, 7 internal surface mounting has seal ring 6 through setting up, it seals up connecting seat 1 and oil pole B3 junction to carry out the sealed up through setting up the toper seal groove 4A 3 and the locating pin and the cooperation of oil pole B3, oil pole A2 internal surface is close to the cooperation of locating pin 11.

The working principle of the hollow sucker rod for well washing based on the embodiment 1 is as follows: will the utility model discloses install the back, when needs installation butt joint oil pole A2 and oil pole B3, with oil pole B3 through the screw thread revolve fit in connecting seat 1 inside, dock oil pole B3 and oil pole A2, rotatory position sleeve 11 again, extrude locating pin 10 through 11 one sides of position sleeve, clamp locating pin 10 inside draw-in groove 5, fix a position oil pole B3, rotatory lock sleeve 9 simultaneously, carry out the side pressure to position sleeve 11 through lock sleeve 9, prevent that position sleeve 11 is not hard up, can carry the well-flushing medium to the pit shaft in through oil pole A2 and pump rod B, carry to ground the material in the pit shaft, so far, this equipment work flow is accomplished.

Example two

As shown in fig. 1-4, the utility model provides a hollow sucker rod for well-flushing, compare in embodiment one, this embodiment still includes: an inner rod 15 is installed on the inner surfaces of the oil rod A2 and the oil rod B3, a heat insulation layer 16 is filled in the gap position of the inner rod 15 between the inner surfaces of the oil rod A2 and the oil rod B3, and a vacuum groove 14 is formed in the inner portions of the oil rod A2 and the oil rod B3 close to the outer surface.

In this embodiment, keep warm to the overheated water of pouring into through heat preservation 16 and the vacuum tank 14 that set up to melt crystallization wax in to the well, prevent that the overheated water cooling is too fast, influence crystallization wax's treatment effect.

The above embodiments are merely some preferred embodiments of the present invention, and those skilled in the art can make various alternative modifications and combinations to the above embodiments based on the technical solution of the present invention and the related teachings of the above embodiments.

Claims

1. The utility model provides a hollow sucker rod for well-flushing, includes connecting seat (1), oil pole A (2) and oil pole B (3), its characterized in that: the outer surface of one end of the oil rod A (2) is provided with a connecting seat (1), the inner surface of the connecting seat (1) is sleeved with an oil rod B (3) through threads, the four angular positions of the inner surface of the connecting seat (1) are all sleeved with positioning pins (10), the outer surface of the connecting seat (1) is sleeved with a positioning sleeve (11) through threads, the outer surface of the connecting seat (1) is close to one side of the positioning sleeve (11) and is sleeved with a locking sleeve (9) through threads, the outer surface of the oil rod B (3) is positioned at the position of the positioning pins (10) and is provided with a clamping groove (5), and the tail end of the positioning pin (10) is clamped inside the clamping groove (5).

2. The hollow sucker rod for well washing of claim 1, wherein: the connecting seat is characterized in that a spring groove (13) is formed in the connecting seat (1) and located on the outer surface of the positioning pin (10), and a spring (8) is installed on the outer surface of the positioning pin (10) and located inside the spring groove (13) through a spring seat (12).

3. The hollow sucker rod for well washing of claim 1, wherein: the sealing device is characterized in that a sealing groove (7) is arranged at the position, close to the positioning pin (10), of the inner surface of the connecting seat (1), and a sealing ring (6) is mounted on the inner surface of the sealing groove (7).

4. The hollow sucker rod for well washing of claim 1, wherein: the utility model discloses a sucker rod B (3) is equipped with sealed pad (4) on one side, the inner surface of sucker rod A (2) is close to sucker rod B (3) one end and the outer surface of sucker rod B (3) is close to sucker rod B (2) one end and all inclines to set up, sucker rod A (2) inner surface is close to sucker rod B (3).

5. The hollow sucker rod for well washing of claim 1, wherein: an inner rod (15) is installed on the inner surfaces of the oil rod A (2) and the oil rod B (3), and a heat insulation layer (16) is filled at the position, located in the gap of the inner rod (15), of the inner surfaces of the oil rod A (2) and the oil rod B (3).

6. The hollow sucker rod for well washing of claim 1, wherein: and vacuum grooves (14) are formed in the oil rod A (2) and the oil rod B (3) close to the outer surfaces.

7. The hollow sucker rod for well washing of claim 1, wherein: the inner surface of the positioning sleeve (11) is in conical fit with the top of the positioning pin (10).