CN217270072U

CN217270072U - Coiled tubing clamping structure and coiled tubing equipment

Info

Publication number: CN217270072U
Application number: CN202220536630.0U
Authority: CN
Inventors: 程龙; 王永强; 林显清; 张晋鹏
Original assignee: Sany Petroleum Intelligent Equipment Co Ltd
Current assignee: Sany Petroleum Intelligent Equipment Co Ltd
Priority date: 2022-03-11
Filing date: 2022-03-11
Publication date: 2022-08-23
Anticipated expiration: 2032-03-11
Also published as: WO2023168932A1

Abstract

The utility model provides a coiled tubing clamping structure and coiled tubing equipment relates to oil drilling technical field, and its technical essential is: including slips and slip seat, the both sides of slips are equipped with the bellying, and the both sides of slip seat are equipped with the spacing hole that supplies the bellying to peg graft. The continuous pipe clamping structure that this embodiment provided, in slips and the slip bowl assembling process, insert one of them bellying in one of them spacing downthehole earlier, then insert another bellying in another spacing downthehole, the bellying through slips both sides reaches along the spacing effect on the assembly direction with the spacing hole grafting cooperation of slip bowl both sides, avoid slips and slip bowl along the separation of assembly direction, for adopt the cylindric lock among the prior art, the spring catch, the mode that needs multiple spot fixed such as spring leaf, continuous pipe clamping structure in this embodiment, the assembly is convenient and fast more, and the cooperation structure is reliable and stable, and is not fragile.

Description

Coiled tubing clamping structure and coiled tubing equipment

Technical Field

The utility model relates to an oil drilling technical field particularly, relates to a continuous tube clamping structure and coiled tubing equipment.

Background

Coiled tubing work equipment, also known as universal work machines, has gained attention in recent years due to its versatility, flexibility and stability. The injection head slip is one of key components which directly affect coiled tubing operation equipment, and the performance of the slip directly affects the whole coiled tubing operation process.

At present, the national design of the slip structure of the injection head basically follows the principles of stable performance, simple and convenient replacement and the like. However, the slip and base assembly has the following disadvantages: the structure such as cylindric lock, spring catch, spring leaf is usually adopted between present slips and the slip seat, needs the multiple spot to fix, and the dismouting is inconvenient to damage easily.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem be that the mode dismouting of multiple spot fixing is inconvenient between slips and the slip bowl.

In order to solve the above problems, the utility model provides a coiled tubing clamping structure and coiled tubing equipment to provide following technical scheme:

in a first aspect of the present invention, a continuous tube clamping structure is provided, comprising a slip and a slip seat, wherein two sides of the slip are provided with protrusions, and two sides of the slip seat are provided with a limiting hole for the protrusions to be inserted.

Optionally, the insertion direction of the protruding portion and the limiting hole is a first direction, the assembling direction of the slip and the slip seat is a second direction, and the first direction is perpendicular to the second direction.

Optionally, the continuous tube clamping structure further includes a limiting member, the limiting member is detachably connected to the slip seat, and the protrusion is inserted into the limiting hole and then adapted to abut against the limiting member along the first direction.

Optionally, a through hole is formed in a side wall of the limiting hole, and the limiting member is in threaded connection with the through hole.

Optionally, the slip seat is connected with anti-falling parts on two sides, and the limiting holes are formed in the anti-falling parts.

Optionally, a gasket is arranged between the slip and the slip seat; and/or the presence of a gas in the gas,

the first direction is perpendicular to the axial direction of the arc portion of the slip.

Optionally, one side of the slip close to the slip seat is connected with a limiting protrusion, one side of the slip seat close to the slip is provided with a groove, the limiting protrusion is connected with the groove in an inserting mode along the second direction, and the protrusion portion is suitable for the groove to slide relative to the first direction.

Optionally, the groove is aligned with a limiting hole along a first direction, and the limiting hole is communicated with the groove.

Optionally, the groove is located in the middle of a face of the slip bowl adjacent the slips.

In a second aspect of the present invention, there is provided a coiled tubing arrangement comprising a coiled tubing gripping structure, the coiled tubing gripping structure being as described in the first aspect.

The utility model has the advantages as follows:

the utility model provides a continuous pipe clamping structure, in the assembly process of slips and a slip seat, firstly, the slips rotates a certain angle around the central axis of an arc part relative to the slip seat, so that the surfaces of the slips and the slip seat which are close to each other are inclined relatively, one of the convex parts is inserted into one of the limiting holes, the slips is gradually adjusted, the slips is moved towards the other limiting hole so that the other convex part is inserted into the limiting hole, the positions of the two convex parts in the two limiting holes are adjusted, the two convex parts are simultaneously and respectively kept in the two limiting holes, the limiting effect along the assembly direction is achieved through the splicing and matching of the convex parts at the two sides of the slips and the limiting holes at the two sides of the slip seat, the separation of the slips and the slip seat along the assembly direction is avoided, compared with the adoption of a mode of multi-point fixation such as a cylindrical pin, a spring leaf and the like in the prior art, the continuous pipe clamping structure in the utility model, the assembly is more convenient and faster, and the matching structure is stable and reliable and is not easy to damage.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings required for the description of the embodiments or the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a continuous tube gripping structure in an embodiment of the present invention;

figure 2 is an exploded view of a continuous tube gripping structure in an embodiment of the present invention;

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a schematic view of the slip and slip bowl of an embodiment of the present invention in a first assembled configuration;

FIG. 5 is a schematic view of the slip and slip bowl of an embodiment of the present invention in a second assembled state;

figure 6 is a schematic view of a slip and slip bowl in a third assembled state according to an embodiment of the present invention.

Description of the reference numerals:

101-slips; 102-a slip bowl; 103-a boss; 104-a limiting hole; 105-arc portion; 106-a stop; 107-through holes; 108-a release prevention; 109-a limit protrusion; 110-a groove; 111-a gasket; 112-guide block.

Detailed Description

Embodiments of the present application will be described in further detail below with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "connected" and "connected," unless expressly specified or limited otherwise, are to be construed broadly and can include, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art. In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature or that the first feature is in indirect contact with the second feature via intermediary media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. In the description herein, references to the description of the terms "some embodiments," "some embodiments," or "possible embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

It should be noted that, in the coordinate system XYZ provided herein (as shown in fig. 1), the X-axis forward direction represents the right direction, the X-axis reverse direction represents the left direction, the Y-axis forward direction represents the rear direction, the Y-axis reverse direction represents the front direction, the Z-axis forward direction represents the upper direction, and the Z-axis reverse direction represents the lower direction.

As shown in fig. 1 and 2, in embodiment 1 of the present invention, a continuous pipe clamping structure is provided, which includes a slip 101 and a slip seat 102, wherein two sides of the slip 101 are provided with protrusions 103, and two sides of the slip seat 102 are provided with limiting holes 104 for the protrusions 103 to be inserted.

Referring to fig. 3 to 6, in the continuous pipe gripping structure provided by this embodiment, in the process of assembling the slips 101 and the slip bowl 102, the slips 101 are rotated by a certain angle around the central axis of the arc portion 105 with respect to the slip bowl 102, so that the surfaces of the slips 101 and the slip bowl 102 close to each other are relatively inclined, one of the protrusions 103 is inserted into one of the limiting holes 104, the slips 101 are gradually swung during the insertion process, the movement locus of the protrusion 103 (the protrusion 103 on the right side in fig. 4 to 6) is similar to a star-shaped curve, after the slip is completely swung, the slips 101 are moved toward the other limiting hole 104 so that the other protrusion 103 (the protrusion 103 on the left side in fig. 4 to 6) is inserted into the limiting hole 104, the positions of the two protrusions 103 in the two limiting holes 104 are adjusted, the two protrusions 103 are simultaneously and respectively held in the two limiting holes 104, and the protrusions 103 on the two sides of the slips 101 are inserted into the limiting holes 104 on the two sides of the slip bowl 102 to achieve the limiting effect in the assembling direction Compared with the prior art in which a cylindrical pin, a spring piece and the like are adopted and need to be fixed in multiple points, the continuous pipe clamping structure in the embodiment is more convenient and faster to assemble, stable and reliable in matching structure and not easy to damage.

Wherein the raised portion 103 is designed as a boss integrally connected with the slip 101.

In some embodiments of the present embodiment, the plugging direction of the protrusion 103 and the limiting hole 104 is a first direction, the assembling direction of the slips 101 and the slip bowl 102 is a second direction, and the first direction is perpendicular to the second direction.

Through the above embodiment of this embodiment, after the protruding portion 103 is inserted into the limiting hole 104, the inner side surface of the limiting hole 104 is adapted to abut against the outer side surface of the protruding portion 103 along the second direction, and the protruding portion 103 is limited to move along the second direction, so that the slips 101 and the slip bowl 102 are limited to separate along the second direction.

In some embodiments of the present embodiment, the first direction is perpendicular to the axial direction of the circular arc portion 105 of the slip 101.

With the above embodiment of the present embodiment, after the boss 103 is inserted into the stopper hole 104, the inner surface of the stopper hole 104 can abut against the outer surface of the boss 103 in the axial direction of the arc portion 105, and the slip 101 is axially stopped.

In some embodiments of the present embodiment, the continuous tube clamping structure further includes a limiting member 106, the limiting member 106 is detachably connected to the slip bowl 102, and the protrusion 103 is adapted to abut against the limiting member 106 along the first direction after being inserted into the limiting hole 104.

Referring to fig. 4 to 6, according to the above embodiment of the present embodiment, since the two protrusions 103 are located between the two limiting holes 104, and a plugging fit along the first direction is to be achieved, a movable space needs to exist between the slip 101 and the slip seat 102 along the first direction, so that the two protrusions 103 move relatively in the limiting holes 104 along the first direction to adjust positions, after the protrusions 103 adjust the positions in the limiting holes 104, the limiting member 106 is installed on the slip seat 102, the protrusions 103 abut against the limiting member 106 along the first direction, and the protrusions 103 are limited from moving along the first direction, so that the protrusions 103 are prevented from being pulled out of the limiting holes 104 due to the relative movement of the protrusions 103 and the limiting holes 104 along the first direction.

The limiting member 106 is a bolt.

In some embodiments of the present invention, a through hole 107 is disposed on an inner side surface of the limiting hole 104, and the limiting member 106 is in threaded connection with the through hole 107.

With the above-mentioned embodiment of the present embodiment, the limiting hole 104 penetrates through the inner side surface of the limiting hole 104 along the first direction, so that the limiting member 106 extends into the limiting hole 104 from the outside of the limiting hole 104 to limit the protruding portion 103 along the first direction.

In some embodiments of the present embodiment, the slip bowl 102 is connected with anti-slip elements 108 at both sides thereof, the limiting holes 104 are provided in the anti-slip elements 108, and the through holes 107 are also provided in the anti-slip elements 108.

Through the above-mentioned embodiment of this embodiment, slip 101 and slip bowl 102 cooperation back, slip 101 is in between two anticreep pieces 108, anticreep piece 108 can carry out prepositioning and direction to the assembly of slip 101 with slip bowl 102, improves assembly efficiency, and can be spacing along the first direction to slip 101, spacing back at locating part 106 to bellying 103, anticreep piece 108 can restrict slip 101 and slip bowl 102 along the first direction relative motion, thereby avoid bellying 103 to extract from spacing hole 104.

In some embodiments of this embodiment, a limiting protrusion 109 is connected to one side of the slip 101 close to the slip seat 102, a groove 110 is formed in one side of the slip seat 102 close to the slip 101, the limiting protrusion 109 and the groove 110 are inserted in the second direction, and the protrusion 103 and the groove 110 can slide relatively in the first direction.

Through the above-mentioned embodiment of this embodiment, recess 110 and spacing protruding 109 along the cooperation of second direction grafting back, the medial surface of recess 110 and the lateral surface of spacing protruding 109 along the axial butt, carry on spacingly to slips 101 along the axial, can also lead slips 101 along the first direction simultaneously, make the spacing hole 104 of inserting that bellying 103 can be more accurate.

In some embodiments of the present embodiment, the recess 110 is aligned with the retention hole 104 along the first direction, and the retention hole 104 is in communication with the recess 110.

Through the above embodiment of the present embodiment, the anti-slip element 108 is designed into Contraband shape, the anti-slip element 108 is buckled upside down on the groove 110 and is fixedly connected with the slip seat 102, the limiting protrusion 109 slides along the groove 110 until the protruding portion 103 is inserted into the limiting hole 104, the limiting protrusion 109 is also inserted into the inner side of the anti-slip element 108, and the end of the groove 110 is a part of the limiting hole 104, so the structure is more compact.

In some embodiments of this embodiment, the groove 110 is located in the middle of one face of the slip bowl 102 adjacent the slips 101.

Through the above embodiment of the embodiment, the acting force of the slip bowl 102 on the slip bowl 102 is concentrated on the central position of the slip bowl 102, and in the process that the limiting protrusion 109 is axially limited by the groove 110, the force on the slip bowl 102 is more balanced, so that the stability of the whole continuous pipe clamping structure is improved.

In some embodiments of the present embodiment, shims 111 are provided between the slips 101 and the slip bowl 102.

In this embodiment, the first direction is parallel to the X-axis, the second direction is parallel to the Z-axis, the axial direction is parallel to the Y-axis, the two sides are parallel to the first direction, the two sides of the slip 101 are two sides of the slip 101 along the first direction, i.e., the left side and the right side of the slip 101, and the two sides of the slip bowl 102 are two sides of the slip bowl 102 along the first direction, i.e., the left side and the right side of the slip bowl 102.

As shown in fig. 4 to 6, in some embodiments of the present embodiment, two sets of guide blocks 112 are connected to the anti-slip element 108 on the left side of the slip bowl 102, the limiting hole 104 is located between the two sets of guide blocks 112, the protrusion 103 on the right side of the slip 101 is inserted into the limiting hole 104 on the right side of the slip bowl 102, then the protrusion 103 on the left side of the slip 101 is inserted between the two sets of guide blocks 112, and the guide blocks 112 guide the protrusion 103 on the left side of the slip 101, so that the protrusion 103 on the left side of the slip 101 is aligned with the limiting hole 104 on the left side of the slip bowl 102 after the slip 101 is straightened.

In embodiment 2 of the present invention, there is provided a coiled tubing device, including a coiled tubing clamping structure, the coiled tubing clamping structure being the coiled tubing clamping structure as described in embodiment 1.

The coiled tubing clamping structure in this embodiment adopts the coiled tubing clamping structure in embodiment 1, so that the structure, function and effect of the coiled tubing clamping structure are included, and the description of this embodiment is omitted.

Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the present disclosure, and these changes and modifications are intended to fall within the scope of the present disclosure.

Claims

1. The continuous pipe clamping structure comprises a slip (101) and a slip seat (102), and is characterized in that protrusions (103) are arranged on two sides of the slip (101), and limiting holes (104) for the protrusions (103) to be inserted are formed in two sides of the slip seat (102).

2. A continuous tube gripping structure according to claim 1, characterised in that the plugging direction of the protrusions (103) into the retainer holes (104) is a first direction, the fitting direction of the slips (101) into the slip bowl (102) is a second direction, and the first direction is perpendicular to the second direction.

3. The continuous tube clamping structure according to claim 2, further comprising a stop member (106), wherein the stop member (106) is detachably connected to the slip bowl (102), and wherein the boss (103) is adapted to abut against the stop member (106) in the first direction after being inserted into the stop hole (104).

4. Continuous tube clamping structure according to claim 3, characterized in that the side wall of the retainer hole (104) is provided with a through hole (107), and the retainer (106) is in threaded connection with the through hole (107).

5. Continuous tube clamping structure according to claim 4, characterized in that anti-slip means (108) are connected to both sides of the slip bowl (102), the limiting hole (104) being provided in the anti-slip means (108).

6. Continuous pipe clamping structure according to any of claims 2 to 5, characterized in that a spacer (111) is provided between the slips (101) and the slip bowl (102); and/or the presence of a gas in the gas,

the first direction is perpendicular to an axial direction of the arc portion (105) of the slip (101).

7. A continuous pipe gripping structure according to any of the claims 2 to 5, characterised in that a stop protrusion (109) is attached to a side of the slip (101) adjacent to the slip bowl (102), a groove (110) is provided in a side of the slip bowl (102) adjacent to the slip (101), the stop protrusion (109) is in engagement with the groove (110) in the second direction, and the protrusion (103) and the groove (110) are adapted to slide relative to each other in the first direction.

8. Continuous tube clamping structure according to claim 7, characterised in that the groove (110) is aligned with a stopper hole (104) in a first direction, the stopper hole (104) communicating with the groove (110).

9. A continuous pipe gripping arrangement according to claim 8, characterised in that the groove (110) is located in the middle of a face of the slip bowl (102) adjacent the slips (101).

10. A coiled tubing installation comprising a coiled tubing gripping structure, wherein the coiled tubing gripping structure is a coiled tubing gripping structure according to any of claims 1 to 9.