CN217106880U

CN217106880U - Sucker rod slips

Info

Publication number: CN217106880U
Application number: CN202221126562.7U
Authority: CN
Inventors: 范晓贤; 崔仁学; 王春垒; 袁德章; 王革联; 张洪岩; 罗潇; 金玉寒
Original assignee: Shengli Oilfield Shengji Petroleum Equipment Co Ltd
Current assignee: Shengli Oilfield Shengji Petroleum Equipment Co Ltd
Priority date: 2022-05-12
Filing date: 2022-05-12
Publication date: 2022-08-02
Anticipated expiration: 2032-05-12

Abstract

The utility model discloses a sucker rod slips, which relates to the technical field of oil well wellhead equipment, and comprises a fixed plate arranged at a well mouth, wherein the center of the fixed plate is provided with a through hole for a sucker rod to pass through, the upper end surface of the fixed plate is provided with a horizontal linear guide rail penetrating through the through hole, a main body and a centralizer are respectively arranged on the guide rails at the two sides of the through hole in a sliding way, the main body and the centralizer are arranged oppositely, and the inner sides of the main body and the centralizer are matched to form a slips through hole for the sucker rod to pass through; the top of the main body is detachably provided with a complementary core, the inner side of the complementary core is provided with a U-shaped groove matched with the rod body of the sucker rod, and the upper end of the complementary core is matched with the transition arc step of the sucker rod; the main body and the centralizer are connected with a power mechanism; the device has the advantages of simple structure, few parts, low cost, convenient maintenance, small occupied operation space and light weight, and can be assembled and disassembled by one person; the device has simple process and short process time, can quickly realize the opening and closing of the slips and can be adapted to sucker rods with various specifications.

Description

Sucker rod slips

Technical Field

The utility model relates to an oil well wellhead equipment technical field, concretely relates to sucker rod slips.

Background

Along with the urgent needs of oil fields for reducing the labor intensity of operating personnel, improving the operation safety and improving the working efficiency, the demand of the power elevator of the automatic operation matching tool in the current market is increased day by day, and meanwhile, because the working condition of the product is special, the design of the product is more and more developed towards the characteristics of safety, reliability, simple operation, convenient maintenance, real and durable leather and the like.

Chinese patent CN210888842U discloses a sucker rod slip, which comprises a fixed seat, two caliper bodies and two slip bodies, wherein the fixed seat is connected with a chassis at the lower part, a fixed seat through hole for a sucker rod to pass through is arranged in the middle of the fixed seat, the inner side of each caliper body is respectively provided with a slip body fixing groove, one slip body is connected with a corresponding slip body fixing groove, the inner sides of the two slip bodies are matched to form a slip through hole for a sucker rod to pass through, the conical surface of the sucker rod is matched with the upper end surface of the outer edge of the slip through hole, slip supporting blocks are arranged at the lower parts of the two slip bodies, the bottoms of the slip supporting blocks are connected with a fixing seat, a supporting block through hole for the sucker rod to pass through is formed in the middle of each slip supporting block, the outer side of each slip body is connected with a slip opening and closing rotating shaft, the slip opening and closing rotating shaft is supported on the fixing seat through a bearing seat, and the slip opening and closing rotating shaft is connected with a slip opening and closing power mechanism; the equipment has a complex structure, is inconvenient to maintain and has complicated procedures.

Therefore, there is an urgent need to develop a new sucker rod slip.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sucker rod slips to the defect that prior art exists.

The technical scheme of the utility model is that: a slip for a sucker rod comprises a fixed plate installed at a well mouth, wherein a through hole for the sucker rod to pass through is formed in the center of the fixed plate, a horizontal linear guide rail penetrating through the through hole is formed in the upper end face of the fixed plate, a main body and a centralizer are respectively installed on guide rails on two sides of the through hole in a sliding mode, the main body and the centralizer are arranged oppositely, and the inner sides of the main body and the centralizer are matched to form a slip through hole for the sucker rod to pass through; the top of the main body is detachably provided with a complementary core, the inner side of the complementary core is provided with a U-shaped groove matched with the rod body of the sucker rod, and the upper end of the complementary core is matched with the transition arc step of the sucker rod; the main body and the centralizer are connected with a power mechanism.

Preferably, the power mechanism comprises a driver, two first connecting rods and two second connecting rods, a horizontal cylinder base is fixedly mounted on one side of the fixing plate, the driver is mounted on the cylinder base and arranged in a collinear manner with the guide rail, and the output end of the driver is fixedly connected with the main body; two symmetrically arranged upright posts are arranged on two sides of a base of the centralizer, one ends of the two first connecting rods are respectively hinged with two sides of the main body, and the other ends of the two first connecting rods are respectively hinged with one end of a second connecting rod; the middle parts of the two second connecting rods are rotatably arranged on the fixing plate, the two connecting rods are symmetrically arranged by taking the guide rail as the center, and the other ends of the two connecting rods are provided with openings matched with the corresponding vertical rods.

Preferably, the actuator is a hydraulic cylinder.

Preferably, a ribbed plate is arranged between the centralizer and the base thereof.

Preferably, the oil receiving box comprises an oil receiving box main body, a rubber core is arranged in an inner cavity of the oil receiving box main body, an oil discharge port is formed in the side wall of the rubber core, an upper oil receiving box cover is mounted at the top of the rubber core, and an lower oil receiving box cover is mounted at the bottom of the rubber core; the fixed plate is installed on the oil receiving box upper cover and is coaxially arranged with the oil receiving box main body.

Compared with the prior art, the utility model, have following advantage:

the device has the advantages of simple structure, few parts, low cost, convenient maintenance, small occupied operation space and light weight, and can be assembled and disassembled by one person; the device has simple working procedures and short working step time, and can quickly realize the opening and closing of the slips; the oil receiving box in the device can realize the function of cleaning oil sludge, reduce splashing of oil sludge in a construction site and be beneficial to improving the working environment.

Drawings

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

FIG. 2 is a schematic view of the slip of the present invention in an open position;

fig. 3 is a schematic view of the state of the slips of the present invention when closed.

In the figure: 1. the oil receiving box comprises a fixing plate, 101, a guide rail, 2, a main body, 3, a centralizer, 301, a base, 4, a core supplementing body, 401, a U-shaped groove, 5, a sucker rod, 6, a cylinder seat, 7, a driver, 8, a vertical rod, 9, a first connecting rod, 10, a second connecting rod, 1001, a gap, 11, a rib plate, 12, an oil receiving box main body, 1201, an oil discharge port, 13, an oil receiving box upper cover, 14 and an oil receiving box lower cover.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example one

Referring to fig. 1, the sucker rod slip comprises a fixing plate 1 installed at a wellhead, wherein a through hole for a sucker rod 5 to pass through is formed in the center of the fixing plate 1, a horizontal linear guide rail 101 penetrating through the through hole is formed in the upper end face of the fixing plate 1, a main body 2 and a centralizer 3 are respectively installed on the guide rails 101 on two sides of the through hole in a sliding mode, the main body 2 and the centralizer 3 are arranged oppositely, and the inner sides of the main body 2 and the centralizer 3 are matched to form a slip through hole for the sucker rod 5 to pass through; the top of the main body 2 is detachably provided with a complementary core 4, the inner side of the complementary core 4 is provided with a U-shaped groove 401 matched with the rod body of the sucker rod 5, the upper end of the complementary core 4 is matched with the transition arc step of the sucker rod 5, and the complementary core 4 with the corresponding specification can be replaced according to the size of the sucker rod 5; the main body 2 and the centralizer 3 are connected with a power mechanism.

In more detail, the power mechanism of the embodiment includes a driver 7, two first connecting rods 9 and two second connecting rods 10, a horizontal cylinder base 6 is fixedly installed on one side of the fixing plate 1, the driver 7 is installed on the cylinder base 6 and is arranged in a collinear way with the guide rail 101, and the output end of the driver is fixedly connected with the main body 2; two symmetrically arranged upright rods 8 are arranged on two sides of a base 301 of the centralizer 3, one ends of two first connecting rods 9 are respectively hinged with two sides of the main body 2, and the other ends of the two first connecting rods are respectively hinged with one end of a second connecting rod 10; the middle parts of the two second connecting rods 10 are rotatably arranged on the fixing plate 1, the two connecting rods are symmetrically arranged by taking the guide rail 101 as the center, and the other ends of the two connecting rods are provided with notches 1001 matched with the corresponding vertical rods 8.

When the output end of the driver 7 is retracted, the main body 2 and the centralizer 3 are far away from the center of the wellhead, and the sucker rod 5 can move up and down; as shown in figure 3, when the output end of the driver 7 extends out, the main body 2 and the centralizer 3 are combined and matched and are positioned in the center of a well head, and at the moment, the excessive arc step of the sucker rod 5 is clamped at the upper end of the complementary core 4, so that the sucker rod 5 is clamped.

And (4) lifting the sucker rod 5: when the initial sucker rod slip is in a closed state, the elevator clamps the sucker rod 5 and lifts a short distance, the driver 7 is retracted, the main body 2 and the centralizer 3 are far away from the center of a well mouth, a space is made for the elevator to lift the sucker rod 5; stop after the upper end of second section sucker rod 5 moves to mending 4 upper portions of core, driver 7 stretches out, and main part 2 and centralizer 3 get back to the wellhead center, and the elevator transfers sucker rod 5 and makes the excessive circular arc step of second section sucker rod 5 drop on mending 4 core, dismantles first section sucker rod 5, then repeats above-mentioned step until accomplishing sucker rod 5 operation.

And (5) setting a sucker rod: the elevator lifts the sucker rod 5 and the sucker rod 5 in the well head to be butted and buckled, lifts the sucker rod 5 a short distance, the driver 7 is withdrawn, the body 2 and the centralizer 3 are far away from the center of the well head, the sucker rod 5 is placed downwards, until the upper end of the sucker rod 5 is positioned about 200mm above the bushing 4, the driver 7 stretches out, the body 2 and the centralizer 3 return to the center of the well head, the sucker rod 5 is placed downwards to the transition arc step of the sucker rod, the sucker rod 5 is dropped on the bushing 4, and the steps are repeated until the sucker rod 5 is completed.

The device has the advantages of simple structure, few parts, low cost, convenient maintenance, small occupied operation space and light weight, and can be assembled and disassembled by one person; the device has simple process and short process time, can quickly realize the opening and closing of the slips and can be adapted to sucker rods with various specifications.

Example two

As an optimized embodiment of the present invention, the oil receiving box is added to the present embodiment on the basis of the first embodiment, specifically:

the oil receiving box further comprises an oil receiving box, wherein the oil receiving box comprises an oil receiving box main body 12, a rubber core is arranged in an inner cavity of the oil receiving box main body 12, an oil outlet 1201 is formed in the side wall of the oil receiving box main body, an oil receiving box upper cover 13 is installed at the top of the oil receiving box main body, and an oil receiving box lower cover 14 is installed at the bottom of the oil receiving box main body; the fixed plate 1 is mounted on the oil receiving box upper cover 13 and is arranged coaxially with the oil receiving box main body 12.

Connect the oil box to play 5 in-process sucker rods and can play the effect with fatlute clean up, the fatlute of clearance flows into appointed blowdown pond after connecting the pipeline through both sides oil drain 1201, carries out subsequent processing.

EXAMPLE III

As a preferred embodiment of the present invention, the present embodiment optimizes and limits the type of the driver 7 on the basis of the first embodiment, and optimizes the structure of the centralizer 3, specifically:

in the present embodiment, the actuator 7 is a hydraulic cylinder; in order to further improve the structural strength of the centralizer 3, a rib plate 11 is provided between the centralizer 3 and the base 301 thereof.

The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge range of those skilled in the art without departing from the spirit of the present invention, and the changed contents still belong to the protection scope of the present invention.

Claims

1. The utility model provides a sucker rod slips, is including installing the fixed plate at the well head, the center department of fixed plate is equipped with the through-hole that supplies the sucker rod to pass, its characterized in that: a horizontal linear guide rail penetrating through the through hole is arranged on the upper end face of the fixed plate, a main body and a centralizer are respectively installed on the guide rails on two sides of the through hole in a sliding mode, the main body and the centralizer are arranged oppositely, and the inner sides of the main body and the centralizer are matched to form a slip through hole for the sucker rod to penetrate through; the top of the main body is detachably provided with a supplement core, the inner side of the supplement core is provided with a U-shaped groove matched with the rod body of the sucker rod, and the upper end of the supplement core is matched with the transition arc step of the sucker rod; the main body and the centralizer are connected with a power mechanism.

2. The sucker rod slip of claim 1, wherein: the power mechanism comprises a driver, two first connecting rods and two second connecting rods, a horizontal cylinder seat is fixedly installed on one side of the fixing plate, the driver is installed on the cylinder seat and is arranged in a collinear manner with the guide rail, and the output end of the driver is fixedly connected with the main body; two symmetrically arranged upright posts are arranged on two sides of a base of the centralizer, one ends of the two first connecting rods are respectively hinged with two sides of the main body, and the other ends of the two first connecting rods are respectively hinged with one end of a second connecting rod; the middle parts of the two second connecting rods are rotatably arranged on the fixing plate, the two connecting rods are symmetrically arranged by taking the guide rail as the center, and the other ends of the two connecting rods are provided with openings matched with the corresponding vertical rods.

3. The sucker rod slip of claim 2, wherein: the driver is a hydraulic cylinder.

4. The sucker rod slip of claim 2, wherein: a ribbed plate is arranged between the centralizer and the base thereof.

5. The sucker rod slip of claim 1, wherein: the oil receiving box comprises an oil receiving box main body, a rubber core is arranged in an inner cavity of the oil receiving box main body, an oil discharge port is formed in the side wall of the oil receiving box main body, an oil receiving box upper cover is mounted at the top of the oil receiving box main body, and an oil receiving box lower cover is mounted at the bottom of the oil receiving box main body; the fixed plate is installed on the oil receiving box upper cover and is coaxially arranged with the oil receiving box main body.