CN110578482A - Wellhead casing pipe dismounting device - Google Patents
Wellhead casing pipe dismounting device Download PDFInfo
- Publication number
- CN110578482A CN110578482A CN201910960962.4A CN201910960962A CN110578482A CN 110578482 A CN110578482 A CN 110578482A CN 201910960962 A CN201910960962 A CN 201910960962A CN 110578482 A CN110578482 A CN 110578482A
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- pipe
- hydraulic
- hydraulic pressure
- push rod
- rod
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/18—Connecting or disconnecting drill bit and drilling pipe
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a wellhead casing pipe dismounting device which structurally comprises a pressing clamp tank body and a mold cover, wherein the pressing clamp tank body is provided with a pipe sleeve, a male connector and a steel mold jaw, the mold cover is provided with a pull ring and a hydraulic jack, and the wellhead casing pipe dismounting device has the beneficial effects that: can change the pulling of pull ring into pushing down through the reverse effect of pull ring, thereby promote spring ware and circulator and drive the claw pole and grab ground, the support that promotes the claw pole is on ground, thereby promote the circulator through reverse power and shift up, produced pressure atress is on the hydraulic pressure bag under the cooperation of circulator and screwed pipe simultaneously, reverse power through the hydraulic pressure bag promotes, the supplementary pressure pincers jar body that promotes is gone up to pull out, thereby it pulls out to drive the oil well sleeve pipe, because the effect of pressure is greater than the effect of pulling force, simultaneously with the additional assistance of hydraulic pressure pipe, can dismantle the oil well sleeve pipe easily, time saving and labor saving.
Description
Technical Field
the invention relates to the field of hydraulic equipment, in particular to wellhead casing pipe dismounting equipment.
Background
the oil well casing pipe is used for being connected to ground with oil gas, and is isolated with oil gas and ground simultaneously for guarantee that the atmospheric pressure of oil gas does not reveal, do not influence the oil pumping, oil well casing has the half to be buried in the underground when the installation, consequently has certain difficulty when dismantling the oil well casing pipe, so need dismantle with the help of dismouting equipment.
Aiming at the current wellhead casing pipe dismounting equipment, a relative scheme is made aiming at the following problems:
The existing oil well pipe sleeve is arranged in the dismounting process, and is mostly buried underground, so dismounting and mounting are needed by means of dismounting and mounting equipment, but the existing dismounting and mounting equipment is used for tightly sleeving the pipe sleeve when dismounting and mounting are conducted, then the pipe sleeve is pulled to be dismounted through mechanical assistance, so that the engineering quantity for dismounting the pipe sleeve is greatly increased, hydraulic dismounting and mounting equipment is needed to be dismounted, the normal force can be reduced through hydraulic equipment dismounting, dismounting and mounting can be conducted through manpower, and certain difficulty still exists.
Disclosure of Invention
The invention mainly aims to overcome the defects of the prior art and provide wellhead casing pipe dismounting equipment.
the invention is realized by adopting the following technical scheme: a wellhead casing pipe dismounting device structurally comprises a pressing clamp tank body and a mold cover, wherein the pressing clamp tank body is connected below the mold cover in a clearance fit mode, the mold cover is embedded in the top of the pressing clamp tank body, the pressing clamp tank body is provided with a pipe sleeve, a male joint and a steel mold jaw, the pipe sleeve is connected to the bottom of the pressing clamp tank body in a clearance fit mode, the male joint is connected to the side face of the pipe sleeve through threads, and the steel mold jaw is embedded in the outer surface of the pressing clamp tank body; the die cover is provided with a pull ring and a hydraulic jack, the pull ring is connected to the die cover through a bolt, and the hydraulic jack is welded on two sides of the outer surface of the pressing clamp tank body.
As optimization, hydraulic jack-up ware is equipped with hydraulic pressure pipe, spring ware, circulator, hydraulic pressure bag, the hydraulic pressure pipe welds on pressing pincers jar external surface, the spring ware inlays to be located hydraulic pressure intraduct, the circulator inlays to be located between spring ware and the hydraulic pressure bag, the hydraulic pressure bag inlays to be located on the inside bottom surface of hydraulic pressure pipe, the hydraulic pressure pipe is 2, the hydraulic pressure pipe is the metal material, the spring ware is 2, the circulator is the metal material.
Preferably, the hydraulic pipe is provided with a threaded pipe, the threaded pipe is welded on the inner wall of the hydraulic pipe, the threaded pipe is of a tubular structure with a large upper end and a small bottom end, the threaded pipe is made of metal, and threads are distributed on the inner wall of the threaded pipe.
As an optimization, the spring device is provided with a hook and a pressing rod, the hook is welded on the spring device, the pressing rod is welded at the bottom of the spring device, the hook is of a metal circular ring structure, the pressing rod is of a circular rod shape, and the number of the pressing rods is 2.
As optimization, the circulator is equipped with clamp plate, push rod, the clamp plate passes through thread engagement and connects in the circulator top, the push rod welds in the circulator bottom, the clamp plate is circular T column structure, the clamp plate is the rubber material, the push rod is circular shaft-like structure, the push rod is 2.
As optimization, the push rod is equipped with claw pole, folding rod, the claw pole passes through the card and connects on the push rod, the folding rod passes through the card and connects between push rod and claw pole, the claw pole is the metal material, the claw pole is 3, the folding rod is the metal material.
Preferably, the push rod penetrates through the hydraulic bag to be connected to the inside of the hydraulic pipe, the hydraulic bag is made of rubber, the hydraulic bag is of a circular rod-shaped structure, and a through hole is formed in the middle of the hydraulic bag.
advantageous effects
The invention relates to a wellhead casing pipe dismounting device, which is characterized in that when working:
the hydraulic jack is provided with a hydraulic pipe, a spring device, a rotator and a hydraulic bag, the sleeve is sleeved on the oil well sleeve, then a pull ring is pressed, the spring device is driven by the pull ring to extrude, so that the rotator is pushed to rotate and move downwards, the rotator is matched with the hydraulic bag to block in the rotating and moving downwards process, so that a claw rod is pushed to expand, the claw rod is stressed on the ground, and a hydraulic clamp tank body is pushed to pull upwards through the reverse force of the claw rod, so that the oil well sleeve is pulled up;
The spring device is provided with the hook and the pressure rod, when the pull ring is pressed, the pull ring presses the hook, so that the spring device is pushed to drive the pressure rod to push downwards, and the rotator is further pushed to move downwards;
by arranging the rotator which is provided with the pressure plate and the push rod, when the pressure rod pushes the rotator to move downwards, the rotator is driven to rotate and move downwards in the threaded pipe under the auxiliary action of the pressure plate, and the push rod is pushed to move downwards in the rotating process, so that the push rod is pushed out of the hydraulic bag, and the push rod is unfolded;
The hydraulic pipe is provided with the threaded pipe, and when the rotator moves downwards, in order to enhance the grip force of the push rod and the reverse thrust of the hydraulic bag, the rotator is driven to rotate downwards through the threads in the threaded rod, so that the hydraulic bag is extruded downwards;
Through being equipped with a push rod, the push rod is equipped with claw pole, folding rod, and after the push rod was released the hydraulic pressure bag, the claw pole on the push rod expandes under the elasticity drive of folding rod to make the claw pole support in ground, thereby promote the pressure pincers jar body and upwards pull up, and then drive the oil well pipe box and upwards pull up, simultaneously under the drive of the extruded hydraulic pressure bag of circulator, supplementary promotion circulator shifts up.
Compared with the prior art, the invention has the beneficial effects that: can change the pulling of pull ring into pushing down through the reverse effect of pull ring, thereby promote spring ware and circulator and drive the claw pole and grab ground, the support that promotes the claw pole is on ground, thereby promote the circulator through reverse power and shift up, produced pressure atress is on the hydraulic pressure bag under the cooperation of circulator and screwed pipe simultaneously, reverse power through the hydraulic pressure bag promotes, the supplementary pressure pincers jar body that promotes is gone up to pull out, thereby it pulls out to drive the oil well sleeve pipe, because the effect of pressure is greater than the effect of pulling force, simultaneously with the additional assistance of hydraulic pressure pipe, can dismantle the oil well sleeve pipe easily, time saving and labor saving.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a wellhead casing dismounting device of the present invention.
Fig. 2 is a schematic structural diagram of the hydraulic jack in a working state.
Fig. 3 is a schematic view of the internal structure of the hydraulic pipe of the present invention.
Fig. 4 is a schematic structural view of the rotator of the present invention in a working state.
fig. 5 is an enlarged schematic view of the spring device of the present invention.
Fig. 6 is an enlarged schematic view of the rotator of the present invention.
FIG. 7 is a schematic top view of the push rod of the present invention in an expanded state.
In the figure: the press tong comprises a press tong tank body 1, a die cover 2, a pipe sleeve 10, a male connector 11, a steel die jaw 12, a pull ring 20, a hydraulic jack 21, a hydraulic pipe 210, a spring device 211, a rotator 212, a hydraulic bag 213, a threaded pipe A, a hook B, a pressure lever C, a pressure plate D, a push rod E, a claw rod E1 and a folding rod E2.
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.
Referring to fig. 1-7, the present invention provides a technical solution for wellhead casing pipe dismounting device: the structure of the pressure clamp comprises a pressure clamp tank body 1 and a mold cover 2, wherein the pressure clamp tank body 1 is connected below the mold cover 2 in a clearance fit manner, the mold cover 2 is embedded in the top of the pressure clamp tank body 1, the pressure clamp tank body 1 is provided with a pipe sleeve 10, a male connector 11 and a steel mold jaw 12, the pipe sleeve 10 is connected to the bottom of the pressure clamp tank body 1 in a clearance fit manner, the male connector 11 is connected to the side surface of the pipe sleeve 10 through threads, and the steel mold jaw 12 is embedded in the outer surface of the pressure clamp tank body 1; the die cover 2 is provided with a pull ring 20 and a hydraulic jack 21, the pull ring 20 is connected to the die cover 2 through a bolt, the hydraulic jack 21 is welded on two sides of the outer surface of the clamp cylinder 1, the hydraulic jack 21 is provided with a hydraulic tube 210, a spring 211, a rotator 212 and a hydraulic bag 213, the hydraulic tube 210 is welded on the outer surface of the clamp cylinder 1, the spring 211 is embedded inside the hydraulic tube 210, the rotator 212 is embedded between the spring 211 and the hydraulic bag 213, the hydraulic bag 213 is embedded on the bottom surface inside the hydraulic tube 210, the hydraulic tube 210 is used for pushing the clamp cylinder 1 to be pulled up, the spring 211 is used for pulling the rotator 212 to be lifted, the hydraulic bag 213 is used for blocking the rotator 212 to be extruded and stressed, the hydraulic tube 210 is provided with a threaded tube A, the threaded tube A is welded on the inner wall of the hydraulic tube 210, the threaded tube A is used for driving the rotator 212 to rotate to be lifted up or moved down, the spring device 211 is provided with a hook B and a pressure lever C, the hook B is welded on the spring device 211, the pressure lever C is welded at the bottom of the spring device 211, the hook B is used for fixing the spring device 211 on the pull ring 20, the pressure lever C is used for pushing the rotator 212 to rotate and move downwards, the rotator 212 is provided with a pressure plate D and a push rod E, the pressure plate D is connected to the top of the rotator 212 through threaded engagement, the push rod E is welded at the bottom end of the rotator 212, the pressure plate D is used for protecting the rotator 212 from being damaged in the stress process, the push rod is used for pushing a claw rod and a folding rod to extend, the push rod E is provided with a claw rod E1 and a folding rod E2, the claw rod E1 is connected to the push rod E through a clamp, the folding rod E2 is connected between the push rod E and the claw rod E1 through a clamp, the claw rod E1 is used for supporting on the ground, and drives the crimp, the folding lever E2 is used to assist the jaw lever E1 in unfolding and folding, and the push lever E is connected to the inside of the hydraulic tube 210 through the hydraulic bladder 213.
when the oil well casing pulling device is used, the casing 10 is sleeved on the oil well casing, then the pull ring 20 is pressed, the pull ring 20 drives the spring device 211 to extrude, so that the rotator 212 is pushed to rotate and move downwards, the rotation and downward movement process is blocked by being matched with the hydraulic bag 213, so that the claw rod E1 is pushed to expand, the claw rod E1 is stressed on the ground, and the pressure clamp tank body 1 is pushed to pull upwards through the reverse force of the claw rod E1, so that the oil well casing is pulled up; when the pull ring 20 is pressed, the pull ring 20 presses the hook B, so that the spring device 211 is pushed to drive the compression bar C to move downwards, and the rotator 212 is pushed to move downwards; when the pressing rod C pushes the rotator 212 to move downwards, the rotator 212 is driven to rotate downwards in the threaded pipe A under the auxiliary action of the pressing plate D, and the push rod E is pushed to move downwards in the rotating process, so that the push rod E is pushed out of the hydraulic bag 213, and the push rod E is unfolded; in the process that the rotator 212 moves downwards, in order to strengthen the ground gripping force of the push rod E and the reverse thrust of the hydraulic bag 213, the rotator 212 is driven to rotate downwards through the threads in the threaded rod A, so that the hydraulic bag 213 is extruded downwards; after the push rod E is pushed out of the hydraulic bag 213, the claw rod E1 on the push rod E is unfolded under the elastic driving of the folding rod E2, so that the claw rod E1 is supported on the ground, thereby pushing the pressure tong tank 1 to be pulled up, further driving the oil well pipe sleeve to be pulled up, and simultaneously, under the driving of the hydraulic bag 213 extruded by the rotator 212, assisting in pushing the rotator 212 to move up.
Compared with the prior art, the invention has the technical progress that:
can change the pulling of pull ring into pushing down through the reverse effect of pull ring, thereby promote spring ware and circulator and drive the claw pole and grab ground, the support that promotes the claw pole is on ground, thereby promote the circulator through reverse power and shift up, produced pressure atress is on the hydraulic pressure bag under the cooperation of circulator and screwed pipe simultaneously, reverse power through the hydraulic pressure bag promotes, the supplementary pressure pincers jar body that promotes is gone up to pull out, thereby it pulls out to drive the oil well sleeve pipe, because the effect of pressure is greater than the effect of pulling force, simultaneously with the additional assistance of hydraulic pressure pipe, can dismantle the oil well sleeve pipe easily, time saving and labor saving.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a well head sleeve pipe dismouting equipment, its structure includes the pressure pincers jar body (1), mould lid (2), the pressure pincers jar body (1) is connected in mould lid (2) below through clearance fit, mould lid (2) inlay and locate the pressure pincers jar body (1) top, its characterized in that:
The pressing clamp tank body (1) is provided with a pipe sleeve (10), a male connector (11) and a steel die jaw (12), the pipe sleeve (10) is connected to the bottom of the pressing clamp tank body (1) in a clearance fit mode, the male connector (11) is connected to the side face of the pipe sleeve (10) through threads, and the steel die jaw (12) is embedded on the outer surface of the pressing clamp tank body (1);
The die cover (2) is provided with a pull ring (20) and a hydraulic jack-up device (21), the pull ring (20) is connected to the die cover (2) through a bolt, and the hydraulic jack-up device (21) is welded on two sides of the outer surface of the pressing clamp tank body (1).
2. A wellhead casing dismantling device according to claim 1 and characterized in that: hydraulic jack (21) are equipped with hydraulic pressure pipe (210), spring ware (211), circulator (212), hydraulic pressure bag (213), hydraulic pressure pipe (210) weld on the clamp jar body (1) surface, spring ware (211) are inlayed and are located hydraulic pressure pipe (210) inside, circulator (212) are inlayed and are located between spring ware (211) and hydraulic pressure bag (213), hydraulic pressure bag (213) are inlayed and are located on the inside bottom surface of hydraulic pressure pipe (210).
3. A wellhead casing dismantling device according to claim 2 and characterized in that: the hydraulic pressure pipe (210) is equipped with screwed pipe (A), screwed pipe (A) welds on hydraulic pressure pipe (210) inner wall.
4. A wellhead casing dismantling device according to claim 2 and characterized in that: spring ware (211) are equipped with couple (B), depression bar (C), couple (B) welds on spring ware (211), depression bar (C) welds in spring ware (211) bottom.
5. A wellhead casing dismantling device according to claim 2 and characterized in that: the rotator (212) is provided with a pressing plate (D) and a push rod (E), the pressing plate (D) is connected to the top of the rotator (212) through threaded engagement, and the push rod (E) is welded to the bottom end of the rotator (212).
6. A wellhead casing dismounting device according to claim 5, characterized in that: the push rod (E) is provided with a claw rod (E1) and a folding rod (E2), the claw rod (E1) is connected to the push rod (E) through a clamp, and the folding rod (E2) is connected between the push rod (E) and the claw rod (E1) through a clamp.
7. A wellhead casing dismounting device according to claim 5, characterized in that: the push rod (E) penetrates through the hydraulic bag (213) and is connected to the interior of the hydraulic pipe (210).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960962.4A CN110578482A (en) | 2019-10-11 | 2019-10-11 | Wellhead casing pipe dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910960962.4A CN110578482A (en) | 2019-10-11 | 2019-10-11 | Wellhead casing pipe dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110578482A true CN110578482A (en) | 2019-12-17 |
Family
ID=68814527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910960962.4A Pending CN110578482A (en) | 2019-10-11 | 2019-10-11 | Wellhead casing pipe dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110578482A (en) |
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2019
- 2019-10-11 CN CN201910960962.4A patent/CN110578482A/en active Pending
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Application publication date: 20191217 |