CN214818238U - Wellhead puller - Google Patents

Abstract

The utility model discloses a wellhead puller, which comprises a non-magnetic drill collar, wherein the non-magnetic drill collar is a cylinder, a flange cylinder is connected above the non-magnetic drill collar, a hydraulic pump is connected above the flange cylinder, a jack is arranged inside the hydraulic pump, a T-shaped pull rod is arranged inside the non-magnetic drill collar, the axis of the T-shaped pull rod is collinear with the axes of the non-magnetic drill collar and the hydraulic pump, the T-shaped pull rod is in sliding connection with the non-magnetic drill collar and the hydraulic pump, the outer wall of the T-shaped pull rod is in contact connection with the inner wall of the jack, a grapple is connected below the T-shaped pull rod, a locking nut is arranged above the T-shaped pull rod and is in threaded connection with the T-shaped pull rod, the locking nut is positioned outside the hydraulic pump, a first through hole is arranged at the top of the T-shaped pull rod, a slide bar is arranged in the first through hole and is in sliding connection with the first through hole, and the two ends of the slide bar are connected with a first ball nose, thereby solving the problem that the existing puller is used, the problem that the pulser cannot be taken out of the puller due to slurry blockage in the non-magnetic drill collar.

Description

Wellhead puller

Technical Field

The utility model relates to a puller, concretely relates to ware is drawn to well head.

Background

The existing puller is a mechanical puller, the mechanical puller is slow in process in use, so that the pulling speed of the pulser is slow, a large amount of time is needed for pulling the pulser out, impurities such as mud, silt and the like easily enter the nonmagnetic drill collar in the use process of the puller, the puller cannot take out the pulser due to mud blockage in the nonmagnetic drill collar, the puller can be continuously used after the impurities in the nonmagnetic drill collar are removed, when a pulling head in the nonmagnetic drill collar is clamped, the existing mechanical puller cannot be continuously used, the reasons for clamping the nonmagnetic drill collar need to be checked, and the puller can be continuously used after the reasons for clamping the nonmagnetic drill collar are removed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that current puller is at the in-process that uses, and the ware can't take out the pulser because of the mud blocks up in the no magnetic drill collar, and aim at provides a well head puller, has solved current puller at the in-process that uses, leads to the problem that the pulser can't take out because of the mud blocks up in the no magnetic drill collar.

The utility model discloses a following technical scheme realizes:

a wellhead puller is characterized by comprising a non-magnetic drill collar which is cylindrical, a flange cylinder is connected above the non-magnetic drill collar, a hydraulic pump is connected above the flange cylinder, the axis of the hydraulic pump is collinear with the axis of the non-magnetic drill collar, a jack is arranged inside the hydraulic pump, a T-shaped pull rod is arranged inside the non-magnetic drill collar, the axis of the T-shaped pull rod is collinear with the axis of the non-magnetic drill collar, the upper end of the T-shaped pull rod penetrates through the hydraulic pump, the T-shaped pull rod is in sliding connection with the non-magnetic drill collar and the hydraulic pump, the outer wall of the T-shaped pull rod is in contact connection with the inner wall of the jack, a grab hook is connected below the T-shaped pull rod, a locking nut is arranged above the T-shaped pull rod and is in threaded connection with the T-shaped pull rod, the locking nut is located outside the hydraulic pump, a first through hole is formed in the top of the T-shaped pull rod, a sliding rod is arranged in the first through hole, the two ends of the sliding rod are connected with first ball noses.

The utility model discloses a theory of operation does: the existing drawbench is a mechanical drawbench, impurities such as slurry, silt and the like easily enter a non-magnetic drill collar when the existing drawbench is used, the pulser cannot be taken out due to slurry blockage in the non-magnetic drill collar, the existing mechanical drawbench can be continuously used only after the impurities in the non-magnetic drill collar are removed, when a pulling head in the non-magnetic drill collar is clamped, the existing mechanical drawbench cannot be continuously used, the reason for clamping the non-magnetic drill collar needs to be checked, the reason for clamping the non-magnetic drill collar is discharged and then can be continuously used, in order to solve the technical problems, a wellhead drawbench is arranged at present, a T-shaped pull rod, a grab hook and the pulser move outwards together, the non-magnetic drill collar serves as a fixed foundation point, the pulser is pulled out of a drilling tool, the inner wall of the non-magnetic drill collar serves as a foundation force point, and the T-shaped pull rod, the non-magnetic drill collar, the pulser and the inner wall of the non-magnetic drill collar serve as a foundation force point, The hydraulic pump is connected in a sliding manner, the pulser is caught by the grabbing hook connected below the T-shaped pull rod, the pulser slides along the inner wall of the non-magnetic drill collar through the T-shaped pull rod after being caught by the grabbing hook, the non-magnetic drill collar and the hydraulic pump are connected through the flange barrel, the hydraulic pump is started, the hydraulic pump drives the jack to work, a piston of the jack is further pushed to move, the outer wall of the T-shaped pull rod is in contact connection with the inner wall of the jack, an inner piston of the jack drives the T-shaped pull rod to move upwards, the pulser moves along the inner wall of the non-magnetic drill collar, and therefore the purpose of pulling the pulser out of the drilling tool is achieved The problem that silt just can use after discharging, when the pulling head in the non-magnetic drill collar blocks, also can pull out the drilling tool with the pulser through the hydraulic pump as great power supply, avoided the reason that needs investigation blocked.

Preferably, when the pulser is difficult to be pulled out from the drilling tool by the hydraulic pump, the arranged slide rod is used as a mechanical pulling handle, the arranged first ball nose prevents the slide rod from being separated from the top of the T-shaped pull rod, the arranged locking nut is convenient for pulling the pulser for a certain distance and then is connected with the hydraulic pump by rotating the locking nut, the T-shaped pull rod is prevented from sliding downwards, the locking nut and the hydraulic pump are jointly used as a power source by manpower, the pulser difficult to be pulled out from the drilling tool is convenient to be pulled out, preferably, a system element of the hydraulic pump has an explosion-proof function, the catch hook is made of brass, the explosion-proof system element of the hydraulic pump and the brass catch hook enable the device to have the explosion-proof function, the device is convenient to be used under a working environment with explosion risks, the condition that the puller is exploded in the using process is avoided, further, the influence on the normal use of the puller is avoided, and the mechanical pulling device is pulled out through a wellhead, the problem of current puller in the use, the puller can't take out the pulser because of the mud jam results in the no magnetic drill collar is solved.

Furthermore, a first groove connected with the non-magnetic drill collar is arranged below the flange barrel, a second groove connected with the hydraulic pump is arranged above the flange barrel, the non-magnetic drill collar and the flange barrel can be conveniently connected together through the first groove, the non-magnetic drill collar can be conveniently installed and detached through the first groove, the hydraulic pump and the flange barrel can be conveniently connected together through the second groove, and the hydraulic pump can be conveniently installed and detached through the second groove.

Further, the inside of grapple is equipped with the second through-hole, the below of grapple is connected with at least a grapple tooth, adjacent grapple tooth staggers each other, the below of grapple still is connected with the dog, be convenient for T type pull rod and grapple through the second through-hole that sets up are connected, still be convenient for the connector of pulser to get into in the grapple through the second through-hole that sets up, and then be convenient for catch the connector of pulser through the grapple tooth that the grapple below set up, the connector of pulser has been avoided droing from between the grapple tooth through the dog that sets up.

Furthermore, a first thread is connected below the T-shaped pull rod, a second thread is connected to the inner wall of the second through hole, the T-shaped pull rod and the grapple are connected through the first thread and the second thread, the first thread is matched with the second thread, the first thread of the T-shaped pull rod is connected with the second thread of the grapple, and therefore the T-shaped pull rod and the grapple can be connected and detached conveniently.

Further, the both sides of a flange section of thick bamboo are equipped with the handrail handle, and the handrail handle is located the outside of a flange section of thick bamboo, and the handrail handle rotates with a flange section of thick bamboo to be connected, is convenient for hold a flange section of thick bamboo through the handrail handle that sets up, and then is convenient for hold the device of this application, is convenient for shift this device through holding the handrail handle, rotates with a flange section of thick bamboo through the handrail handle and is connected this device of being convenient for and use in different angles, and then the scope of being convenient for this device use is wider.

Further, lock nut's both sides are equipped with the bracing piece, and one side and the lock nut of bracing piece are connected, and the opposite side of bracing piece is connected with second ball nose, is convenient for rotatory lock nut through the bracing piece that sets up, and the surface of having avoided directly holding lock nut is difficult to rotate, and the one end that has avoided the bracing piece through the second ball nose that sets up sharply leads to the fact constructor injured's risk.

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

1. the utility model relates to a well head puller, the driving power of the utility model is hydraulic pump driving, which causes the well head puller to exceed the existing mechanical puller in bearing capacity, and replaces the existing manual driving mode through the hydraulic pump driving, thereby reducing the risk of manual operation injury;

2. the utility model relates to a wellhead puller, the power of the wellhead puller is replaced by manpower to a hydraulic pump to drive a T-shaped pull rod to move, thereby realizing the purpose of taking out a pulser and leading the operation of taking out the pulser to be more rapid and rapid;

3. the utility model relates to a well head puller, when the pulser card taught in the drilling tool tightly was difficult to extract, through artifical and hydraulic pump as the power supply jointly, be convenient for extract the drilling tool with the pulser that is difficult to draw.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Reference numbers and corresponding part names in the drawings:

1-non-magnetic drill collar, 2-flange cylinder, 3-hydraulic pump, 4-jack, 5-T-shaped pull rod, 6-grapple, 7-lock nut, 8-first through hole, 9-slide bar, 10-first ball nose, 11-grapple tooth, 12-dog, 13-support bar, 14-second ball nose.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

The utility model relates to a wellhead puller, as shown in figure 1, comprising a non-magnetic drill collar 1, wherein the non-magnetic drill collar 1 is a cylinder, a flange barrel 2 is connected above the non-magnetic drill collar 1, a hydraulic pump 3 is connected above the flange barrel 2, the axis of the hydraulic pump 3 is collinear with the axis of the non-magnetic drill collar 1, a jack 4 is arranged inside the hydraulic pump 3, a T-shaped pull rod 5 is arranged inside the non-magnetic drill collar 1, the axis of the T-shaped pull rod 5 is collinear with the axis of the non-magnetic drill collar 1, the upper end of the T-shaped pull rod 5 passes through the hydraulic pump 3, the T-shaped pull rod 5 is slidably connected with the non-magnetic drill collar 1 and the hydraulic pump 3, the outer wall of the T-shaped pull rod 5 is connected with the inner wall of the jack 4 in a contact manner, a grab hook 6 is connected below the T-shaped pull rod 5, a locking nut 7 is arranged above the T-shaped pull rod 5, the locking nut 7 is connected with the T-shaped pull rod 5 through threads, the locking nut 7 is positioned outside the hydraulic pump 3, the top of the T-shaped pull rod 5 is provided with a first through hole 8, a slide rod 9 is arranged in the first through hole 8, the slide rod 9 is connected with the first through hole 8 in a sliding mode, and two ends of the slide rod 9 are connected with first ball noses 10.

The specific implementation manner of this embodiment is: the existing drawbench is a mechanical drawbench, in the using process of the existing drawbench, impurities such as slurry, silt and the like easily enter a non-magnetic drill collar, the drawbench cannot take out a pulser due to slurry blockage in the non-magnetic drill collar, the drawbench can be continuously used only after the impurities in the non-magnetic drill collar are removed, when a drawing head in the non-magnetic drill collar is clamped, the existing mechanical drawbench cannot be continuously used, the reason for causing the clamping in the non-magnetic drill collar needs to be checked, the reason for causing the clamping in the non-magnetic drill collar is discharged and then can be continuously used, and in order to solve the technical problems, the existing drawbench is provided with a wellhead drawbench, a T-shaped draw bar, a grab hook and the pulser move outwards together, and the non-magnetic drill collar serves as a fixed foundation point to draw the pulser out of a drilling tool.

The inner wall of the non-magnetic drill collar is used as a basic acting point, the T-shaped pull rod is connected with the non-magnetic drill collar and the hydraulic pump in a sliding mode, after the pulser is caught by the grabbing hook through the grabbing hook, the T-shaped pull rod slides along the inner wall of the non-magnetic drill collar, the flange barrel is connected with the non-magnetic drill collar and the hydraulic pump, the hydraulic pump is started, the hydraulic pump drives the jack to work and further pushes the piston of the jack to move, the outer wall of the T-shaped pull rod is connected with the inner wall of the jack in a contact mode, the inner piston of the jack drives the T-shaped pull rod to move upwards, the pulser moves along the inner wall of the non-magnetic drill collar, and therefore the purpose of pulling the pulser out of the drilling tool is achieved, the user of the existing puller works as a power source, the hydraulic pump is used as the power source to provide larger power, and when some mud and silt are clamped in the non-magnetic drill collar, the pulser can be pulled out of the drilling tool through the larger power source, the problem that the pulser can be used only after mud and silt in the non-magnetic drill collar are discharged in the prior art is avoided, when the drawing head in the non-magnetic drill collar is clamped, the pulser can be drawn out of the drilling tool by taking the hydraulic pump as a large power source, and the reason that the clamping needs to be checked is avoided.

Preferably, when the hydraulic pump is difficult to pull out the pulser from the drilling tool, the arranged slide rod is used as a handle for mechanical pulling, the arranged first ball nose prevents the slide rod from being separated from the top of the T-shaped pull rod, the arranged locking nut is convenient for pulling out the pulser for a certain distance and then is connected with the hydraulic pump through the rotating locking nut, the T-shaped pull rod is prevented from sliding downwards, the locking nut and the hydraulic pump are jointly used as a power source through manpower, the pulser difficult to pull out is convenient to pull out from the drilling tool, a wellhead puller is arranged, preferably, a system element of the hydraulic pump has an explosion-proof function, a grapple is made of brass, the explosion-proof system element of the hydraulic pump and the brass grapple make the device have the explosion-proof function, the device is convenient to use under a working environment with explosion risk, the condition that the puller explodes in the using process is avoided, and further the normal use of the puller is prevented from being influenced, the problem of current puller in the use, the puller can't take out the pulser because of the mud jam results in the no magnetic drill collar is solved.

Example 2

Based on embodiment 1, as shown in fig. 1, a first groove connected with the non-magnetic drill collar 1 is arranged below the flange cylinder 2, a second groove connected with the hydraulic pump 3 is arranged above the flange cylinder 2, a second through hole is formed in the grapple 6, at least one grapple tooth 11 is connected below the grapple 6, adjacent grapple teeth 11 are staggered with each other, a stopper 12 is further connected below the grapple 6, a first thread is connected below the T-shaped pull rod 5, a second thread is connected to the inner wall of the second through hole, and the T-shaped pull rod 5 and the grapple 6 are connected with the second thread through the first thread.

The specific implementation manner of this embodiment is: the lower part of the flange barrel is provided with a first groove connected with the non-magnetic drill collar, the upper part of the flange barrel is provided with a second groove connected with the hydraulic pump, the arranged first groove is convenient for connecting the non-magnetic drill collar with the flange barrel, the arranged first groove is convenient for installing and disassembling the non-magnetic drill collar, the arranged second groove is convenient for connecting the hydraulic pump with the flange barrel, the arranged second groove is convenient for installing and disassembling the hydraulic pump, the inside of the grapple is provided with a second through hole, the lower part of the grapple is connected with at least one grapple tooth, the adjacent grapple teeth are mutually staggered, the lower part of the grapple is also connected with a stop dog, the T-shaped pull rod is convenient to be connected with the grapple hook through the arranged second through hole, the connector of the pulser can conveniently enter the grapple hook through the arranged second through hole, the connector of the pulser can be conveniently grabbed through the grapple teeth arranged below the grapple hook, and the connector of the pulser can be prevented from falling off from the grapple teeth through the arranged stop dog, the T-shaped pull rod is connected with a first thread below, the inner wall of the second through hole is connected with a second thread, the T-shaped pull rod is connected with the grapple through the first thread and the second thread, the first thread is matched with the second thread, the first thread of the T-shaped pull rod is convenient for connection with the second thread of the grapple, and then connection and disassembly of the T-shaped pull rod and the grapple are convenient to realize.

Example 3

Based on the basis of the above embodiment, as shown in fig. 1, the two sides of the flange barrel 2 are provided with the armrest handles, the armrest handles are located outside the flange barrel 2, the armrest handles are rotatably connected with the flange barrel 2, the two sides of the locking nut 7 are provided with the support rods 13, one side of each support rod 13 is connected with the locking nut 7, and the other side of each support rod 13 is connected with the second ball nose 14.

The specific implementation manner of this embodiment is: the both sides of a flange section of thick bamboo are equipped with the handrail handle, the handrail handle is located the outside of a flange section of thick bamboo, the handrail handle rotates with a flange section of thick bamboo to be connected, be convenient for hold a flange section of thick bamboo through the handrail handle that sets up, and then be convenient for hold the device of this application, be convenient for shift this device through holding the handrail handle, it uses in different angles to rotate this device of being convenient for through the handrail handle and a flange section of thick bamboo rotation connection, and then the scope of being convenient for this device use is wider, lock nut's both sides are equipped with the bracing piece, one side and the lock nut of bracing piece are connected, the opposite side of bracing piece is connected with the second ball nose, the bracing piece through setting up is convenient for rotatory lock nut, the surface of having avoided directly holding lock nut is difficult to rotate, the one end that has avoided the bracing piece through the second ball nose that sets up sharply leads to the fact constructor injured risk.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (6)

1. A wellhead puller is characterized by comprising a non-magnetic drill collar (1), wherein the non-magnetic drill collar (1) is a cylinder, a flange cylinder (2) is connected above the non-magnetic drill collar (1), a hydraulic pump (3) is connected above the flange cylinder (2), the axis of the hydraulic pump (3) is collinear with the axis of the non-magnetic drill collar (1), a jack (4) is arranged inside the hydraulic pump (3), a T-shaped pull rod (5) is arranged inside the non-magnetic drill collar (1), the axis of the T-shaped pull rod (5) is collinear with the axis of the non-magnetic drill collar (1), the upper end of the T-shaped pull rod (5) penetrates through the hydraulic pump (3), the T-shaped pull rod (5) is connected with the non-magnetic drill collar (1) and the hydraulic pump (3) in a sliding manner, the outer wall of the T-shaped pull rod (5) is connected with the inner wall of the jack (4) in a contact manner, a grab hook (6) is connected below the T-shaped pull rod (5), and a locking nut (7) is arranged above the T-shaped pull rod (5), lock nut (7) and T type pull rod (5) pass through threaded connection, and lock nut (7) are located the outside of hydraulic pump (3), and the top of T type pull rod (5) is equipped with first through-hole (8), is equipped with slide bar (9) in first through-hole (8), slide bar (9) and first through-hole (8) sliding connection, and the both ends of slide bar (9) are connected with first ball nose (10).

2. A wellhead puller as claimed in claim 1, characterised in that the flange barrel (2) is provided with a first recess below for connection with a non-magnetic drill collar (1) and a second recess above the flange barrel (2) for connection with a hydraulic pump (3).

3. A wellhead puller as claimed in claim 1 wherein the inside of the grapple (6) is provided with a second through hole, at least one grapple tooth (11) is connected below the grapple (6), adjacent grapple teeth (11) are staggered with each other, and a stop (12) is also connected below the grapple (6).

4. A wellhead puller as claimed in claim 3, characterised in that a first thread is connected below the T-shaped pull rod (5), a second thread is connected to the inner wall of the second through hole, and the T-shaped pull rod (5) and the grapple (6) are connected by the first thread and the second thread.

5. A wellhead puller as claimed in claim 1 wherein the flange barrel (2) is provided with hand grips on both sides, the hand grips being located on the outside of the flange barrel (2), the hand grips being rotatably connected to the flange barrel (2).

6. A wellhead puller according to claim 1, characterized in that the locking nut (7) is provided with support rods (13) on both sides, one side of each support rod (13) is connected with the locking nut (7), and the other side of each support rod (13) is connected with a second bulb (14).

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