CN218439260U - Oil development safety extraction device - Google Patents

Abstract

The utility model relates to an oil development technical field, concretely relates to oil development safety draw-out device. Comprises a sucker rod connected with an oil pumping unit through a suspension connector, an oil well pump and a centralizer locked on the sucker rod; the sucker rod is locked with a centralizer through a clamping device; the centralizer comprises a roller, a sliding sleeve, support rings, limit baffles and a connecting ring, wherein the roller is sleeved on the support rings through the sliding sleeve, the limit baffles are uniformly distributed on the support rings, the limit baffles are fixedly connected on the connecting ring, at least one group of roller and sliding sleeve is arranged between every two adjacent limit baffles, and the sliding sleeve is in sliding connection with the support rings; clamping device be chuck structure, including chuck body, activity jack catch and jack catch driver, the go-between wall connection of chuck body inner ring and centralizer, the oily jack catch driver drive of activity jack catch, the chucking has embodied the characteristics that the centre gripping nature is good, firm durable, security height on the sucker rod in the work.

Description

Oil development safety extraction device

Technical Field

The utility model relates to an oil development technical field, concretely relates to oil development safety draw-out device.

Background

Oil extraction refers to the act of excavating and extracting oil in places where oil is stored. During the process of oil production, oil and gas flow from the reservoir to the well bottom and then rise from the well bottom to the well top. The sucker rod is a slender rod piece of the pumping well, and is connected with a polished rod at the upper part and an oil well pump at the lower part to play a role in transmitting power. The sucker rod moves up and down in the oil pipe, the rod and the wall of the oil pipe are easy to generate friction due to the elastic deformation of the sucker rod, the sucker rod is easy to break off, and the sucker rod centralizer has strong flexibility and is in contact with the inner wall of the oil pipe, so that the friction between the rod and the pipe can be reduced, and the oil extraction service life of the oil pumping unit is prolonged.

When the existing sucker rod centralizer is used, the centralizer is in reciprocating motion inside an oil pipe, the contact friction position of the centralizer and the inside of the oil pipe is fixed, the centralizer is easy to lose efficacy after being subjected to friction for a long time, and then the use of an extraction device and the safety of oil exploitation are affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the oil exploitation safety extraction device is good in clamping performance, firm, durable and high in safety.

The technical scheme of the utility model is that:

a safety pumping device for oil exploitation comprises a sucker rod connected with an oil pumping unit through a suspension connector, an oil pumping unit and a centralizer locked on the sucker rod; the method is characterized in that: the sucker rod is locked with a centralizer through a clamping device; the centralizer comprises a roller, a sliding sleeve, support rings, limit baffles and a connecting ring, wherein the roller is sleeved on the support rings through the sliding sleeve, the limit baffles are uniformly distributed on the support rings, the limit baffles are fixedly connected on the connecting ring, at least one group of roller and sliding sleeve is arranged between every two adjacent limit baffles, and the sliding sleeve is in sliding connection with the support rings; clamping device be chuck structure, including chuck body, movable jack catch and jack catch driver, chuck body inner ring and the go-between inner wall connection of centralizer, the oily jack catch driver drive of movable jack catch, the chucking is on the sucker rod.

Furthermore, the inner wall of the connecting ring is abutted against the periphery of the sucker rod, and the lower end of the connecting ring is fixedly connected with the chuck body.

Furthermore, a groove is formed in the joint of the connecting ring and the movable clamping jaw, and the movable clamping jaw is clamped in the groove of the connecting ring.

Furthermore, six groups of rollers and sliding sleeves are arranged and uniformly distributed on the support ring; the support ring is provided with a sliding groove, and the sliding sleeve slides along the sliding groove.

Furthermore, the centralizer is arranged at the splicing position of the sucker rod.

Further, the roller is made of elastic materials.

Furthermore, the roller is connected with the sliding sleeve through a bracket.

The beneficial effects of the utility model reside in that:

1. the structure that the sliding sleeves can slide along the supporting rings can lead the adjacent sliding sleeves to drive the idler wheels to gather together due to gravity when the eccentric wear of the sucker rod occurs, and simultaneously play a role of contacting and supporting the inner wall of the oil pipe, thereby increasing the supporting force and the friction force and avoiding the eccentric wear of the sucker rod;

2. the limiting baffle can limit the sliding sleeves to be completely gathered together, so that the overall use effect of the centralizer is influenced, the limiting baffle can ensure that the sliding sleeves can be relatively close to each other, but can limit the sliding sleeves in a fixed area, and ensure that the supporting centralization on the whole circumference of the centralizer can be relatively concentrated and dispersible;

3. the roller is made of elastic materials, so that an elastic space is formed between the centralizer and the inner wall of the oil pipe, and unnecessary friction damage is reduced;

4. the clamping effect of the chuck is superior to that of a common hoop, and when the centralizer is used for centralizing, the chuck improves the strength of the joint of the sucker rod and prolongs the whole service life of the sucker rod.

Description of the drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of an exploded structure of the clamping device;

FIG. 3 is a schematic top view of the centralizer;

fig. 4 is a schematic view of the usage state of the present invention.

In the figure: 1. a clamping device; 1-1, a chuck body; 1-2, movable claws; 1-3, a jaw driver; 2. a centralizer; 2-1, rolling wheels; 2-2, a support ring; 2-3, sliding sleeves; 2-4, a limit baffle; 2-5, connecting rings; 3. a sucker rod; 4. a suspension connector; 5. a pumping unit; 6. an oil well pump.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. 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 application.

As shown in attached figures 1-4, an oil extraction safety device comprises a sucker rod 3 connected with an oil pumping unit 5 through a suspension connector 4, an oil well pump 6 and a centralizer 2 locked on the sucker rod 3; the sucker rod 3 is locked with a centralizer 2 through a clamping device 1; the centralizer 2 comprises rollers 2-1, a sliding sleeve 2-3, support rings 2-2, limit baffles 2-4 and a connecting ring 2-5, wherein the rollers 2-1 are sleeved on the support rings 2-2 through the sliding sleeve 2-3, the limit baffles 2-4 are uniformly distributed on the support rings 2-2, the limit baffles 2-4 are fixedly connected on the connecting ring 2-5, at least one group of rollers 2-1 and sliding sleeves 2-3 are arranged between the adjacent limit baffles 2-4, and the sliding sleeve 2-3 is in sliding connection with the support rings 2-2; when the eccentric wear of the sucker rod 3 occurs, due to gravity, the adjacent sliding sleeves 2-3 can drive the rollers 2-1 to gather together, and meanwhile, the effect of contacting and supporting the inner wall of the oil pipe is achieved, so that the supporting force and the friction force are increased, and the eccentric wear of the sucker rod 3 is avoided.

The clamping device 1 is of a chuck structure and comprises a chuck body 1-1, movable clamping jaws 1-2 and clamping jaw drivers 1-3, the chuck structure is convenient to install and detach, the locking effect is superior to that of a common hoop in use, and the chuck structure is safer and more reliable. The inner ring of the chuck body 1-1 is connected with the inner wall of a connecting ring 2-5 of the centralizer 2, and the movable clamping jaws 1-2 are driven by an oil clamping jaw driver 1-3 and clamped on the sucker rod 3. The inner wall of the connecting ring 2-5 is abutted against the periphery of the sucker rod 3, and the lower end of the connecting ring 2-5 is fixedly connected with the chuck body 1-1. The connecting part of the connecting ring 2-5 and the movable clamping jaws 1-2 is provided with a groove, and the movable clamping jaws 1-2 are clamped in the grooves of the connecting ring 2-5.

In the specific implementation:

in the use, sucker rod 3 is connected with beam-pumping unit 5 through overhang ware 4, and oil-well pump 6 is installed on sucker rod 3 in the pit, and the concatenation department between sucker rod 3 passes through 1 installation centralizer 2 of clamping device to it is fixed to lock.

Six groups of rollers 2-1 and sliding sleeves 2-3 can be arranged, are uniformly distributed on the support ring 2-2 and are separated by the baffle. The supporting ring 2-2 is provided with a sliding chute, the sliding sleeve 2-3 can slide along the sliding chute, when the sucker rod 3 is eccentrically worn, the sliding sleeve 2-3 slides to one inclined end along the supporting ring 2-2 due to gravity, the adjacent sliding sleeve 2-3 drives the roller 2-1 to gather in the inclined direction, the gathered roller 2-1 is contacted and supported with the inner wall of the oil pipe, and the supporting force and the friction force of the single roller 2-1 are increased; in specific use, the number of the sliding sleeves 2-3 and the number of the rollers 2-1 can be determined according to actual requirements, so that the sliding sleeves 2-3 and the rollers 2-1 can quickly play roles in effectively supporting and righting and preventing eccentric wear under the condition that the sucker rod 3 is eccentric wear.

Centralizer 2 set up in the concatenation department of sucker rod 3, clamping device 1 can further strengthen the junction intensity of two sucker rods 3, plays the effect of rightting simultaneously to sucker rod 3.

The roller 2-1 is made of elastic materials, the roller 2-1 is connected with the sliding sleeve 2-3 through a support, the elastic materials have certain compressibility, more elastic spaces are formed between the centralizer 2 and the inner wall of the oil pipe in the underground space, and unnecessary friction damage is reduced.

The above description is only a preferred embodiment of the present invention, and the above illustration does not limit the essence of the present invention in any form, and any simple modification or variation of the above embodiments based on the technical essence of the present invention and equivalent embodiments which may be changed or modified to equivalent variations by using the technical essence of the present invention by those of ordinary skill in the art after reading the present description still belong to the technical solution of the present invention without departing from the essence and scope of the present invention.

Claims (7)

1. A safety pumping device for oil exploitation comprises a sucker rod (3) connected with an oil pumping unit (5) through a suspension connector (4), an oil well pump (6) and a centralizer (2) locked on the sucker rod (3); the method is characterized in that: the sucker rod (3) is locked with a centralizer (2) through a clamping device (1); the centralizer (2) comprises rollers (2-1), sliding sleeves (2-3), support rings (2-2), limiting baffles (2-4) and connecting rings (2-5), wherein the rollers (2-1) are sleeved on the support rings (2-2) through the sliding sleeves (2-3), the limiting baffles (2-4) are uniformly distributed on the support rings (2-2), the limiting baffles (2-4) are fixedly connected onto the connecting rings (2-5), at least one group of rollers (2-1) and sliding sleeves (2-3) are arranged between every two adjacent limiting baffles (2-4), and the sliding sleeves (2-3) are connected with the support rings (2-2) in a sliding mode; the clamping device (1) is of a chuck structure and comprises a chuck body (1-1), movable clamping jaws (1-2) and clamping jaw drivers (1-3), inner rings of the chuck body (1-1) are connected with inner walls of connecting rings (2-5) of the centralizer (2), and the movable clamping jaws (1-2) are driven by the oil clamping jaw drivers (1-3) and clamped on the sucker rods (3).

2. An oil extraction safety device as claimed in claim 1, wherein: the inner wall of the connecting ring (2-5) is propped against the periphery of the sucker rod (3), and the lower end of the connecting ring (2-5) is fixedly connected with the chuck body (1-1).

3. An oil extraction safety device as claimed in claim 2, wherein: the connecting part of the connecting ring (2-5) and the movable clamping jaws (1-2) is provided with a groove, and the movable clamping jaws (1-2) are clamped in the grooves of the connecting ring (2-5).

4. An oil extraction safety device as claimed in claim 1, wherein: six groups of rollers (2-1) and six groups of sliding sleeves (2-3) are uniformly distributed on the support ring (2-2); the support ring (2-2) is provided with a sliding groove, and the sliding sleeve (2-3) slides along the sliding groove.

5. An oil extraction safety device as claimed in claim 1, wherein: the centralizer (2) is arranged at the splicing position of the sucker rod (3).

6. An oil extraction safety device as claimed in claim 1, wherein: the roller (2-1) is made of elastic materials.

7. An oil extraction safety device according to claim 6, wherein: the roller (2-1) is connected with the sliding sleeve (2-3) through a support.

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