CN211422558U

CN211422558U - Automatic slip device for continuous oil pipe

Info

Publication number: CN211422558U
Application number: CN201922442518.1U
Authority: CN
Inventors: 贾泽涛; 蒋辉; 徐平
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-04
Anticipated expiration: 2029-12-30

Abstract

The utility model provides an automatic slips device of coiled tubing relates to anchor clamps technical field, the utility model discloses a support, the inboard activity of support is provided with two rotation axes, all is provided with the tight fixed establishment of clamp of symmetry of each other on the rotation axis, and the support outside is provided with rotary driving mechanism, and rotary driving mechanism is used for driving two rotation axes and rotates towards the direction that is close to mutually simultaneously, and rotary driving mechanism's power supply is hydraulic pressure source or air supply, the utility model has the advantages of can carry out remote control, need not outdoor operation, security height to the device.

Description

Automatic slip device for continuous oil pipe

Technical Field

The utility model relates to an anchor clamps technical field particularly, relates to an automatic slips device of coiled tubing.

Background

The coiled tubing is made of low-carbon alloy steel and has good flexibility, and is also called as a flexible tubing, one coiled tubing is several kilometers long, can replace a conventional tubing to carry out a lot of operations, and coiled tubing operation equipment has the characteristics of operation under pressure and continuous lifting, and has small volume, quick operation period and low cost. Coiled tubing originally served as an economical and effective wellbore cleanup tool, gained a good standing on the market, with the economic revenue of workover and completion operations accounting for more than 75% of the total revenue of coiled tubing operations, and the range of coiled tubing applications in various oil and gas fields in the world has continued to expand. Compared with the traditional operation, the coiled tubing has short operation period, low accident rate and convenient transportation, can operate under pressure without killing the well, can conveniently and quickly protect oil and gas reservoirs, horizontal wells and directional wells, and can perform operation in the tubing, oil pipe passing operation and the like. In recent years, coiled tubing technology is rapidly developed and popularized due to the increase of the global horizontal well operation amount and the development, popularization and application of the horizontal well technology.

At present coiled tubing needs operating personnel to stand outdoor oil pipe cylinder and fix the oil pipe when wearing oil pipe in the work progress, and the cylinder is circular and has the grease to adhere to, and personnel stand and skid easily and difficult operation at the eminence, have unsafe factor, consequently need one kind can control the fixing device who presss from both sides tight oil pipe in the control chamber.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic slips device of coiled tubing, it can realize pressing from both sides tightly fixedly outdoor coiled tubing in the control chamber, and the security is high.

The embodiment of the utility model is realized like this:

the utility model provides an automatic slips device of coiled tubing, its includes the support, and the inboard activity of support is provided with two rotation axises, all is provided with the tight fixed establishment of clamp of symmetry of each other on the rotation axis, and the support outside is provided with rotary driving mechanism, and rotary driving mechanism is used for driving two rotation axes and rotates towards the direction that is close to each other simultaneously, and rotary driving mechanism's power supply is hydraulic pressure source or air supply.

The utility model discloses an in some embodiments, press from both sides tight fixed establishment and establish the arm at the rotation epaxial including fixed cover, the one end that the arm is close to each other all is connected with the cassette, but two cassettes amalgamation one is used for pressing from both sides tight coiled tubing's drum.

The utility model discloses an in some embodiments, the cassette includes that two are curved slips toothholders, and slips toothholder inner wall all can be dismantled and be connected with the slips, and the slips is used for pressing from both sides tight coiled tubing, and slips toothholder outer wall all is provided with the installation department, and the arm passes through a plurality of bolted connection between two installation departments.

In some embodiments of the present invention, the slip bowl is connected to the corresponding slip by a plurality of screws.

The utility model discloses an in some embodiments, rotary driving mechanism includes the telescoping cylinder, and telescoping cylinder one end sets up on the support, and the telescoping cylinder other end articulates there is the gangbar, and the gangbar both ends all articulate there is the movable block, the movable block all with the rotation axis fixed connection who corresponds.

The utility model discloses an in some embodiments, the telescoping cylinder includes the cylinder, is provided with the piston piece in the cylinder, and the piston piece is connected with the piston rod that stretches out the cylinder, and the cavity that contains the piston rod in the cylinder is for having the pole chamber, and the cavity that does not contain the piston rod in the cylinder is for having the pole chamber, has the pole chamber to be connected with medium import A, and no pole chamber is connected with medium import B.

In some embodiments of the present invention, the driving medium of the telescopic cylinder is hydraulic oil or compressed air.

In some embodiments of the present invention, the support comprises a base, two side frames are vertically connected to the base, and a ball bearing matched with the rotation shaft is disposed on the side frames.

The embodiment of the utility model provides an at least, have following advantage or beneficial effect:

1. the utility model discloses a support, the inboard activity of support is provided with two rotation axes, the tight fixed establishment of clamp that all is provided with the symmetry of each other on the rotation axis, the support outside is provided with rotary driving mechanism, rotary driving mechanism is used for driving two rotation axes and rotates towards the direction that is close to mutually simultaneously, rotary driving mechanism's power supply is hydraulic pressure source or air supply, let in hydraulic pressure source or air supply through toward rotary driving mechanism in the operating room, drive two rotation axes and press from both sides tight fixed establishment and rotate certain angle simultaneously towards the direction that is close to mutually, thereby it is fixed to make two tight fixed establishment of clamp be close to mutually with continuous oil pipe clamp, need not at outdoor operation, fundamentally has avoided the potential safety hazard, high.

2. The clamping and fixing mechanism is firm and stable in structure, reliable in clamping force and long in service life.

3. The pressure medium is introduced into the telescopic cylinder to drive the piston rod to extend, so that the linkage rod is driven to move transversely, the two movable blocks are driven to rotate towards different directions respectively, the rotating shafts are driven to rotate towards the directions close to each other, the clamping seats at one ends of the two mechanical arms are folded together to form a cylinder, and the continuous oil pipe is clamped in the cylinder.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of an automatic slip device for coiled tubing according to the present invention;

fig. 2 is a schematic view of the internal structure of the telescopic cylinder.

Icon: 100-bracket, 110-base, 120-side frame, 200-rotating shaft, 300-clamping fixing mechanism, 310-mechanical arm, 320-clamping seat, 321-slip tooth seat, 322-slip, 323-mounting part, 400-rotary driving mechanism, 410-telescopic cylinder, 411-cylinder barrel, 412-piston block, 413-piston rod, 414-rod cavity, 415-rodless cavity, 416-medium inlet A, 417-medium inlet B, 420-linkage rod, 430-movable block and 500-ball bearing.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description of the present invention and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and therefore, the present invention should not be construed as being limited thereto. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "a plurality" means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

Referring to fig. 1 to 2, the present embodiment provides an automatic slip device for coiled tubing, which includes a bracket 100, two rotating shafts 200 movably disposed inside the bracket 100, clamping and fixing mechanisms 300 symmetrically disposed on the rotating shafts 200, a rotation driving mechanism 400 disposed outside the bracket 100, wherein the rotation driving mechanism 400 is configured to drive the two rotating shafts 200 to rotate in a direction approaching each other, and a power source of the rotation driving mechanism 400 is a hydraulic source or an air source.

In this embodiment, in the initial state, the clamping and fixing mechanisms 300 on the two rotating shafts 200 are vertically upward, and the coiled tubing (not shown in the figure) passes through between the two clamping and fixing mechanisms 300, when the coiled tubing needs to be fixed, a hydraulic source or an air source is introduced into the rotary driving mechanism 400 in the operating room to drive the two rotating shafts 200 and the clamping and fixing mechanisms 300 to simultaneously rotate for a certain angle toward the direction of mutual approach, so that the two clamping and fixing mechanisms 300 approach each other to clamp and fix the coiled tubing, and the coiled tubing does not need to be operated outdoors, thereby fundamentally avoiding potential safety hazards and having high safety.

Example 2

The embodiment is further improved on the basis of embodiment 1, specifically, the clamping and fixing mechanism 300 comprises a mechanical arm 310 fixedly sleeved on the rotating shaft 200, the mutually adjacent ends of the mechanical arms 310 are connected with clamping seats 320, the two clamping seats 320 can be spliced into a cylinder for clamping the coiled tubing, when the rotating shaft 200 drives the corresponding mechanical arms 310 and the clamping seats 320 to synchronously rotate, the two clamping seats 320 are mutually adjacent and gradually close to clamp the coiled tubing, and simultaneously, the pressure is applied to the coiled tubing, when the oil needs to be discharged, the rotating shaft 200 reversely rotates to drive the clamping seats 320 to separate, so that the coiled tubing is loosened.

It should be noted that the mechanical arm 310 may be fixed on the rotation shaft 200 by a plurality of assembling components, and one end of the assembling component is connected to a long arm, and the long arm is used for being connected to the card seat 320, and adopts a detachable structure, which is convenient for detachment and assembly.

The cassette 320 includes that two are curved slips toothholders 321, slips 322 are connected with all can dismantling to slips toothholder 321 inner wall, slips 322 are used for pressing from both sides tight coiled tubing, slips toothholder 321 outer wall all is provided with installation department 323, arm 310 is between two installation departments 323 through a plurality of bolted connection, overall structure is firm stable, it is reliable to coiled tubing's clamp force, it is not fragile, long service life, whole detachable construction that adopts simultaneously, convenient to detach and equipment, the manufacturing degree of difficulty is also lower.

It should be noted that, here, the slip socket 321 and the corresponding slip 322 may be connected by a plurality of screws, in other embodiments, the slip socket 321 and the corresponding slip 322 may also be welded together, and in the same way, the mechanical arm 310 may also be welded between the two installation portions 323, so that the overall structure is more reliable and stable, but the process requirement of the relatively detachable connection structure is higher, the manufacturing difficulty is greater, and here, a suitable connection structure may be adopted according to actual conditions.

Here, the support 100 includes a base 110, two side frames 120 are vertically connected to the base 110, a ball bearing 500 engaged with the rotation shaft 200 is disposed on the side frames 120, the ball bearing 500 is used for rotating in cooperation with the rotation shaft, and it should be noted that a through hole allowing the coiled tubing to pass through is formed in the base 110.

Example 3

The embodiment is further improved on the basis of embodiment 1, and specifically, the rotation driving mechanism 400 includes a telescopic cylinder 410, one end of the telescopic cylinder 410 is arranged on the support 100, the other end of the telescopic cylinder 410 is hinged with a linkage rod 420, two ends of the linkage rod 420 are both hinged with movable blocks 430, and the movable blocks 430 are both fixedly connected with the corresponding rotating shafts 200;

it should be noted that, in an initial state, one of the two movable blocks 430 faces upward and the other faces downward, that is, the upper end of one of the movable blocks 430 is hinged to one end of the linkage rod 420, the lower end of the movable block 430 is fixedly connected to the rotating shaft 200, the upper end of the other movable block 430 is fixedly connected to the rotating shaft 200, and the lower end of the other movable block is hinged to the other end of the linkage rod 420, so that when the telescopic cylinder 410 extends to drive the linkage rod 420 to move transversely, the two movable blocks 430 rotate in different directions, and the two rotating shafts 200 rotate in directions approaching each other, and when the telescopic cylinder 410 contracts, the two rotating shafts 200 can be driven to rotate in directions away from each other, and the structural design is flexible.

The telescopic cylinder 410 comprises a cylinder 411, a piston block 412 is arranged in the cylinder 411, the piston block 412 is connected with a piston rod 413 extending out of the cylinder 411, a cavity containing the piston rod 413 in the cylinder 411 is a rod cavity 414, a cavity not containing the piston rod 413 in the cylinder 411 is a rodless cavity 415, the rod cavity 414 is connected with a medium inlet A416, the rodless cavity 415 is connected with a medium inlet B417, and a driving medium of the telescopic cylinder 410 is hydraulic oil or compressed air.

Taking the example that the driving medium adopts hydraulic oil, during specific operation, control is performed through a hydraulic system in operation, when the coiled tubing needs to be fixedly clamped and pressurized, hydraulic oil is input into the rodless cavity 415 through the medium inlet B417, the piston block 412 is driven to slide forwards, the piston rod 413 is driven to extend out of the cylinder 411, and the linkage rod 420 is driven to move transversely.

It should be noted that the medium inlet a416 and the medium inlet B417 are respectively connected to the hydraulic station through oil pipes, so as to be respectively controlled.

In other embodiments, the telescopic cylinder 410 may be replaced by an electric push rod, and the electric push rod is driven by electricity, but the safety is relatively low, and the arrangement is set according to practical situations.

The working principle of the automatic slip device for the coiled tubing is as follows: when the coiled tubing clamp is fastened, hydraulic oil or compressed air is input into the rodless cavity 415 of the telescopic cylinder 410 to drive the piston rod 413 to extend, so that the linkage rod 420 is driven to move transversely, the two rotating shafts 200 are driven to rotate towards the direction of approaching each other, the corresponding mechanical arm 310 and the corresponding clamping seat 320 rotate from the vertical state to the horizontal state (namely rotate by 90 degrees), the clamping seat 320 is just spliced together to clamp the coiled tubing, when the coiled tubing is loosened, hydraulic oil or compressed air is input into the rod cavity 414 of the telescopic cylinder 410 to drive the piston rod 413 to retract into the cylinder barrel 411 and drive the linkage rod 420 to move transversely in the opposite direction, the two rotating shafts 200 also rotate outwards to drive the mechanical arm 310 and the clamping seat 320 to rotate from the horizontal state to the vertical state, and the coiled tubing can be completely sent out.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The automatic slip device for the coiled tubing is characterized by comprising a support, wherein two rotating shafts are movably arranged on the inner side of the support, clamping and fixing mechanisms which are symmetrical to each other are arranged on the rotating shafts, a rotary driving mechanism is arranged on the outer side of the support and is used for driving the two rotating shafts to rotate towards the mutually approaching direction, and a power source of the rotary driving mechanism is a hydraulic source or an air source.

2. The automatic slip device for coiled tubing of claim 1, wherein the clamping and fixing mechanism comprises a mechanical arm fixedly sleeved on the rotating shaft, the mechanical arm is connected with clamping seats at one end close to each other, and the two clamping seats can be spliced to form a cylinder for clamping coiled tubing.

3. The automatic slip device for coiled tubing according to claim 2, wherein the clamping base comprises two slip tooth holders in an arc shape, slips are detachably connected to inner walls of the slip tooth holders and used for clamping the coiled tubing, mounting portions are arranged on outer walls of the slip tooth holders, and the mechanical arm is connected between the two mounting portions through a plurality of bolts.

4. The coiled tubing automatic slip apparatus of claim 3, wherein the slip bowl and corresponding slip are connected by a plurality of screws.

5. The automatic slip device for coiled tubing of any one of claims 1 to 3, wherein the rotary driving mechanism comprises a telescopic cylinder, one end of the telescopic cylinder is arranged on the support, the other end of the telescopic cylinder is hinged with a linkage rod, two ends of the linkage rod are hinged with movable blocks, and the movable blocks are fixedly connected with corresponding rotating shafts.

6. The automatic slip device of claim 5, wherein the telescoping cylinder comprises a cylinder barrel, a piston block is disposed in the cylinder barrel, the piston block is connected with a piston rod extending out of the cylinder barrel, a cavity containing the piston rod in the cylinder barrel is a rod cavity, a cavity not containing the piston rod in the cylinder barrel is a rodless cavity, the rod cavity is connected with a medium inlet A, and the rodless cavity is connected with a medium inlet B.

7. The coiled tubing automatic slip device of claim 5, wherein the driving medium of the telescoping cylinder is hydraulic oil or compressed air.

8. The coiled tubing automatic slip device of claim 1, wherein the bracket comprises a base, two side frames are vertically connected to the base, and ball bearings matched with the rotating shaft are arranged on the side frames.