CN215485912U

CN215485912U - Wear-resistant joint of sucker rod

Info

Publication number: CN215485912U
Application number: CN202120966338.8U
Authority: CN
Inventors: 谢威; 鄢红江; 曹纪元
Original assignee: Guiyang Zhengshan Petroleum Technology Co ltd
Current assignee: Guiyang Zhengshan Petroleum Technology Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2022-01-11
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses an anti-abrasion joint of a sucker rod, which comprises an upper joint, a lower joint and a plurality of connecting blocks, wherein the upper joint, the lower joint and the connecting blocks are detachable, the bottom of the upper joint is provided with a U-shaped connecting part, the top of the lower joint is provided with a connecting plate, the connecting blocks consist of connecting parts and U-shaped groove parts, the U-shaped groove parts on the connecting blocks are provided with different angles, the connecting part on the topmost connecting block is connected with the U-shaped connecting part at the bottom of the upper joint, the U-shaped groove part on the bottommost connecting block is connected with the connecting plate at the top of the lower joint, and two adjacent connecting blocks are connected through the connecting parts and the U-shaped groove parts. The utility model effectively solves the friction between the sucker rod and the oil pipe in the highly deviated well, effectively reduces the abrasion between the sucker rod and the oil pipe, prolongs the pump detection period of oil extraction, reduces the cost of oil extraction and improves the efficiency of oil extraction.

Description

Wear-resistant joint of sucker rod

Technical Field

The utility model relates to the field of oil exploitation, in particular to an abrasion-proof joint of a sucker rod.

Background

Along with the increase of the exploration and development strength of petroleum and natural gas, deep oil gas resources are gradually developed and utilized, and wells with complex working conditions such as deep wells, ultra-deep wells and the like are more and more, particularly highly deviated wells and horizontal wells are more and more. In the oil and gas exploitation process, a sucker rod and a pump are adopted in part of oil pipes for pumping water, and the sucker rod is in contact with the wall of the oil pipe due to the conditions of well deviation, large-amplitude sharp bend of a well hole and the like, so that the inner wall of the oil pipe is seriously abraded.

Chinese patent publication No. CN109209255A provides an active friction type eccentric wear prevention short joint, which includes a first connecting member, a wear reduction assembly, and a second connecting member; the anti-wear assembly is rotatably sleeved on the sucker rod, the surface of the anti-wear assembly is provided with the anti-wear structure, the sucker rod and the oil pipe are protected by active friction of the anti-wear structure, the effective anti-wear rate of the anti-wear point is improved, the fatigue damage of the sucker rod caused by continuous bending is reduced, and the service life of the sucker rod is prolonged.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the technical defects and provide the wear-resistant joint of the sucker rod.

In order to solve the problems, the technical scheme of the utility model is as follows: the utility model provides a sucker rod abrasionproof connects, includes top connection, lower clutch and a plurality of connecting block, can dismantle between top connection, lower clutch and a plurality of connecting block, the top connection bottom is equipped with U type connecting portion, the lower clutch top is equipped with the connecting plate, the connecting block comprises connecting portion and U type concave part, every U type concave part on the connecting block has different angles, the top connecting portion on the connecting block are connected with the U type connecting portion of top connection bottom, the bottommost U type concave part on the connecting block is connected with the connecting plate at lower clutch top, and is two adjacent the connecting block is through connecting portion and U type concave part each other and is connected.

Furthermore, connecting portion and U type connecting portion and U type concave part junction all are equipped with the elasticity cylindric lock, all be equipped with the through-hole of adaptation on U type connecting portion, connecting plate, connecting portion and the U type concave part, be equipped with slide bearing and bearing pin in the through-hole, the through-hole both ends all are equipped with circlip.

Further, top connection bottom and lower clutch top outer wall all are equipped with the heliciform recess, the top connection top is equipped with the thread groove, the lower clutch bottom is equipped with the screw thread post.

Compared with the prior art, the utility model has the advantages that: the utility model effectively solves the friction between the sucker rod and the oil pipe in the highly deviated well, effectively reduces the abrasion between the sucker rod and the oil pipe, prolongs the pump detection period of oil extraction, reduces the cost of oil extraction and improves the efficiency of oil extraction.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of a 4 × 36 ° composite structure.

As shown in the figure: 1. the device comprises an upper joint, 2, an elastic cylindrical pin, 3, a sliding bearing, 4, a bearing pin, 5, an elastic retainer ring, 6, a connecting block, 7 and a lower joint.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-2, a sucker rod abrasionproof connects, including top connection 1, lower clutch 7 and a plurality of connecting block 6, can dismantle between top connection 1, lower clutch 7 and a plurality of connecting block 6, 1 bottom of top connection is equipped with U type connecting portion, 7 tops of lower clutch are equipped with the connecting plate, connecting block 6 comprises connecting portion and U type concave part, every U type concave part on the connecting block 6 has different angles, the top connecting portion on the connecting block 6 is connected with the U type connecting portion of 1 bottom of top connection, the bottom U type concave part on the connecting block 6 is connected with the connecting plate at 7 top of lower clutch, and two are adjacent connecting block 6 is connected through connecting portion and U type concave part each other.

Connecting portion and U type connecting portion all are equipped with elasticity cylindric lock 2 with connecting portion and U type concave part junction, all be equipped with the through-hole of adaptation on U type connecting portion, connecting plate, connecting portion and the U type concave part, be equipped with slide bearing 3 and bearing pin 4 in the through-hole, the through-hole both ends all are equipped with circlip 5.

The bottom of the upper joint 1 and the outer wall of the top of the lower joint 7 are both provided with spiral grooves, the top of the upper joint 1 is provided with thread grooves, and the bottom of the lower joint 7 is provided with thread columns.

In specific use, the oil pumping rod is of a 2 × 60-degree combined structure in fig. 1, of a 4 × 36-degree combined structure in fig. 2, and additionally, 3 × 45 degrees, 5 × 30 degrees and 6 × 25 degrees of different angles designed for different well inclinations are adopted, different numbers of connecting blocks and angles between connecting block pins can be designed according to the well inclinations of an oil well, so that the rigidity of the oil pumping rod is reduced, the friction between the oil pumping rod and an oil pipe caused by lateral force is reduced, and the oil pumping rod can run more stably in the oil well and has long service life.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

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

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a sucker rod abrasionproof connects which characterized in that: including top connection (1), lower clutch (7) and a plurality of connecting block (6), can dismantle between top connection (1), lower clutch (7) and a plurality of connecting block (6), top connection (1) bottom is equipped with U type connecting portion, lower clutch (7) top is equipped with the connecting plate, connecting block (6) comprise connecting portion and U type concave part, every U type concave part on connecting block (6) has different angles, the top connecting portion on connecting block (6) are connected with the U type connecting portion of top connection (1) bottom, the bottom U type concave part on connecting block (6) is connected with the connecting plate at lower clutch (7) top, two are adjacent connecting block (6) are connected through connecting portion and U type concave part each other.

2. The wear joint of claim 1, wherein: the connecting portion and U type connecting portion all are equipped with elasticity cylindric lock (2) with connecting portion and U type concave part junction, all be equipped with the through-hole of adaptation on U type connecting portion, connecting plate, connecting portion and the U type concave part, be equipped with slide bearing (3) and bearing pin (4) in the through-hole, the through-hole both ends all are equipped with circlip (5).

3. The wear joint of claim 1, wherein: the outer wall of the bottom of the upper joint (1) and the outer wall of the top of the lower joint (7) are both provided with spiral grooves, the top of the upper joint (1) is provided with thread grooves, and the bottom of the lower joint (7) is provided with thread columns.