CN214616963U

CN214616963U - Special sucker-rod pump for horizontal well

Info

Publication number: CN214616963U
Application number: CN202120583036.2U
Authority: CN
Inventors: 李旭阳; 王军
Original assignee: Shaanxi Deheng Environmental Protection Technology Co ltd
Current assignee: Shaanxi Deheng Environmental Protection Technology Co ltd
Priority date: 2021-03-18
Filing date: 2021-03-18
Publication date: 2021-11-05
Anticipated expiration: 2031-03-18

Abstract

The utility model discloses a special sucker-rod pump for horizontal wells, which comprises a pump barrel, wherein a valve seat is arranged in the pump barrel, the valve seat is connected with a guide sleeve, the guide sleeve is arranged on the inner wall of the pump barrel, the pump barrel is connected with a limit strip on the upper side of the guide sleeve, the limit strip is in a cross structure arrangement, the bottom of the limit strip is connected with an auxiliary spring, the free end of the auxiliary spring is connected with a valve ball, the valve ball is arranged on the upper side of the valve seat, the top of the limit strip is connected with a pressure-drawing plate, the periphery of the pressure-drawing plate is provided with a plurality of through holes, the through holes are uniformly arranged on the pressure-drawing plate, the pressure-drawing plate is connected with a sucker rod, the top of the sucker rod is connected with an auxiliary sleeve, the top of the sucker rod penetrates through the auxiliary sleeve and extends to the upper side of the auxiliary sleeve, guide grooves are arranged on two sides inside the auxiliary sleeve, the guide grooves are connected with guide rods, a push plate is connected between the guide rods on two sides, and the bottom of the push plate is connected with a plurality of hydraulic cylinders, the hydraulic cylinder is installed in the bottom of auxiliary sleeve, and the auxiliary sleeve top is connected with the piston rod, and pump barrel surface is connected with the centralizer.

Description

Special sucker-rod pump for horizontal well

Technical Field

The utility model belongs to the technical field of oil, natural gas row adopt, concretely relates to special sucker-rod pump of horizontal well.

Background

At present, a plurality of screw pumps, electric submersible pumps and the like are applied in horizontal well production, on one hand, the price is high, on the other hand, the defects that the screw pumps cannot overcome abrasion of fixed points, the electric submersible pumps are easy to block, the failure rate is high, effective continuous drainage and production cannot be formed and the like exist, the traditional sucker-rod pump is the simplest, efficient and lowest-cost production means in oil and gas production, the auxiliary matched construction process and tool technology are mature, the cost is low, but the working principle of the pump is limited, the valve ball playing a sealing role in the valve system is sealed by the action of gravity, the valve ball is mostly applied to vertical wells or small-slope wells, and if the using slope of the pump exceeds an allowable range, the valve ball vertical line and the valve ball sealing axis deviate, the valve ball cannot be located at a correct position and cannot be normally sealed, so that the sucker-rod pump cannot be applied to large-slope wells, The device is used in a horizontal well.

SUMMERY OF THE UTILITY MODEL

To the problem that the above-mentioned background art provided, the utility model aims at: aiming at providing a special sucker-rod pump for a horizontal well.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

the sucker-rod pump special for the horizontal well comprises a pump barrel, wherein a valve seat is installed in the pump barrel, the valve seat is connected with a guide sleeve, the guide sleeve is installed on the inner wall of the pump barrel, the pump barrel is connected with a limiting strip on the upper side of the guide sleeve, the limiting strip is in a cross-shaped structure, the bottom of the limiting strip is connected with an auxiliary spring, the free end of the auxiliary spring is connected with a valve ball, the valve ball is installed on the upper side of the valve seat, the top of the limiting strip is connected with a pumping plate, a plurality of via holes are formed in the periphery of the pumping plate and are uniformly arranged on the pumping plate, the pumping plate is connected with a sucker rod, the top of the sucker rod is connected with an auxiliary sleeve, the top of the sucker rod penetrates through the auxiliary sleeve and extends to the upper side of the auxiliary sleeve, guide grooves are formed in two sides inside the auxiliary sleeve and are connected with guide rods in a sliding mode, and push plates are connected between the guide rods, the hydraulic cylinder is arranged at the bottom of the auxiliary sleeve, the top of the auxiliary sleeve is connected with a piston rod, and the surface of the pump cylinder is connected with a centralizer.

Further limited, the centralizer is a universal centralizer or a carbon fiber centralizer. The structural design plays a protective role in the pump barrel, and reduces the abrasion to the pump barrel.

Further inject, the auxiliary sleeve bottom is equipped with the seal cover, the sucker rod is installed in the seal cover. The structure design prevents the pumped oil from entering the auxiliary sleeve.

Further inject, be equipped with the mounting groove in taking out the clamp plate, install the strong magnet in the mounting groove. When the oil filter is used, the iron residues in the oil can be adsorbed by strong magnets.

Further inject, the valve ball is connected with the gag lever post, the gag lever post is installed in the auxiliary spring. The structure design enables the valve ball to have a maximum stroke limiting effect during movement, and prevents the auxiliary spring from being damaged due to excessive compression of the auxiliary spring.

The utility model has the advantages of it is following:

1. the utility model discloses a set up the auxiliary sleeve, through controlling hydraulic cylinder earlier, make hydraulic cylinder promote the push pedal, make the push pedal take the guide bar of both sides to move upwards along the guide way to drive the sucker rod, the sucker rod drives the pressure plate and moves upwards, pump oil, when hydraulic cylinder moves to the maximum stroke, rethread pull piston rod, carry out the extraction of secondary, through the extraction of secondary, make the stroke of pumping promoted, make the result of use better;

2. the utility model discloses a set up uide bushing and auxiliary spring, such structural design provides supplementary closed thrust through auxiliary spring to the cooperation uide bushing has guaranteed that the accuracy of valve ball and valve seat is closed, guarantees to seal, realizes the normal use of sucker-rod pump in directional well of big inclination and horizontal well, and the closure is good, moreover the utility model has the characteristics of simple structure, transformation are with low costs and easy popularization.

Drawings

The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic view of a sectional structure of a sucker-rod pump dedicated for a horizontal well according to an embodiment of the present invention;

the main element symbols are as follows:

the oil pumping device comprises a pump cylinder 1, a valve seat 2, a guide sleeve 3, a limiting strip 4, an auxiliary spring 5, a valve ball 6, a pumping plate 7, a through hole 8, an oil pumping rod 9, an auxiliary sleeve 10, a guide groove 11, a guide rod 12, a push plate 13, a hydraulic oil cylinder 14, a seal sleeve 15, a limiting rod 16 and a piston rod 17.

Detailed Description

In order to make the present invention better understood by those skilled in the art, the technical solutions of the present invention are further described below with reference to the accompanying drawings and examples.

As shown in figure 1, the utility model discloses a special sucker rod pump for horizontal well, install valve seat 2 in the pump barrel 1, valve seat 2 is connected with the uide bushing 3, the uide bushing 3 is installed at the inner wall of pump barrel 1, pump barrel 1 is connected with spacing 4 at the upside of uide bushing 3, spacing 4 is the setting of cruciform structure, spacing 4 bottom is connected with auxiliary spring 5, the free end of auxiliary spring 5 is connected with valve ball 6, valve ball 6 is installed at the upside of valve seat 2, spacing 4 top is connected with pressure plate 7, the border of pressure plate 7 is equipped with a plurality of via holes 8, a plurality of via holes 8 are evenly arranged on pressure plate 7, pressure plate 7 is connected with sucker rod 9, the top of sucker rod 9 is connected with auxiliary sleeve 10, the top of sucker rod 9 runs through auxiliary sleeve 10 and extends to its upside, auxiliary sleeve 10 inside both sides are equipped with guide way 11, guide way 11 sliding connection has guide bar 12, a push plate 13 is connected between the guide rods 12 on the two sides, the bottom of the push plate 13 is connected with a plurality of hydraulic oil cylinders 14, the hydraulic oil cylinders 14 are installed at the bottom of the auxiliary sleeve 10, the top of the auxiliary sleeve 10 is connected with a piston rod 17, and the surface of the pump cylinder 1 is connected with a centralizer.

When the oil pumping device is used, the hydraulic oil cylinder 14 is controlled firstly, the hydraulic oil cylinder 14 pushes the push plate 13, the push plate 13 drives the guide rods 12 on two sides to move upwards along the guide groove 11 and drive the oil pumping rod 9, the oil pumping rod 9 drives the oil pumping plate 7 to move upwards to pump oil, when the hydraulic oil cylinder 14 moves to the maximum stroke, secondary pumping is carried out through the drawing piston rod 17, the stroke of pumping oil is improved, oil pushes the valve ball 6 from the bottom while pumping oil, the valve ball 6 extrudes the auxiliary spring 5 and moves upwards along the guide sleeve 3, the pumped oil flows out of the valve seat 2 to the upper side through the limiting strip 4 and the through hole 8, and when the oil pumping device is reset, accurate closing of the valve ball 6 and the valve seat 2 is guaranteed through closing thrust provided by the guide sleeve 3 and the auxiliary spring 5, and closing is guaranteed.

Preferably, the centralizer is a universal centralizer or a carbon fiber centralizer. The structural design plays a role in protecting the pump barrel 1 and reduces the abrasion to the pump barrel 1. In fact, other configurations of the centralizer may be considered as appropriate.

Preferably, the bottom of the auxiliary sleeve 10 is provided with a sealing sleeve 15, and the sucker rod 9 is arranged in the sealing sleeve 15. This arrangement prevents oil being pumped from entering the sleeve 10. In fact, other shapes of the sealing sleeve 15 can be used, as the case may be.

Preferably, a mounting groove is arranged in the pressure plate 7, and a strong magnet is arranged in the mounting groove. When the oil filter is used, the iron residues in the oil can be adsorbed by strong magnets. In fact, other configurations of the ferromagnetic member may be used as the case may be.

Preferably, the valve ball 6 is connected with a limiting rod 16, and the limiting rod 16 is arranged in the auxiliary spring 5. The structure design enables the valve ball 6 to have a maximum stroke limiting effect when moving, and simultaneously prevents the auxiliary spring 5 from being damaged due to excessive compression on the auxiliary spring 5. In fact, other configurations of the stop lever 16 are contemplated as appropriate.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The special sucker-rod pump for the horizontal well is characterized in that: the oil-water pump comprises a pump barrel (1), wherein a valve seat (2) is installed in the pump barrel (1), the valve seat (2) is connected with a guide sleeve (3), the guide sleeve (3) is installed on the inner wall of the pump barrel (1), the pump barrel (1) is connected with a limiting strip (4) on the upper side of the guide sleeve (3), the limiting strip (4) is in a cross structure arrangement, an auxiliary spring (5) is connected to the bottom of the limiting strip (4), a valve ball (6) is connected to the free end of the auxiliary spring (5), the valve ball (6) is installed on the upper side of the valve seat (2), a pumping plate (7) is connected to the top of the limiting strip (4), a plurality of through holes (8) are formed in the periphery of the pumping plate (7), the through holes (8) are evenly arranged on the pumping plate (7), the pumping plate (7) is connected with a pumping rod (9), and an auxiliary sleeve (10) is connected to the top of the pumping rod (9), the sucker rod (9) top runs through auxiliary sleeve (10) and extends to its upside, the inside both sides of auxiliary sleeve (10) are equipped with guide way (11), guide way (11) sliding connection has guide bar (12), both sides be connected with push pedal (13) between guide bar (12), push pedal (13) bottom is connected with a plurality of hydraulic cylinder (14), the bottom at auxiliary sleeve (10) is installed in hydraulic cylinder (14), auxiliary sleeve (10) top is connected with piston rod (17), pump barrel (1) surface is connected with the centralizer.

2. The sucker-rod pump special for the horizontal well according to claim 1, which is characterized in that: the centralizer is a universal centralizer or a carbon fiber centralizer.

3. The sucker-rod pump special for the horizontal well according to claim 2, which is characterized in that: the bottom of the auxiliary sleeve (10) is provided with a sealing sleeve (15), and the sucker rod (9) is installed in the sealing sleeve (15).

4. The sucker-rod pump special for the horizontal well according to claim 3, which is characterized in that: an installation groove is formed in the drawing pressing plate (7), and a strong magnet is installed in the installation groove.

5. The sucker-rod pump special for the horizontal well according to claim 4, which is characterized in that: the valve ball (6) is connected with a limiting rod (16), and the limiting rod (16) is installed in the auxiliary spring (5).