CN115095285A - Pipe column clamping tile - Google Patents
Pipe column clamping tile Download PDFInfo
- Publication number
- CN115095285A CN115095285A CN202211028857.5A CN202211028857A CN115095285A CN 115095285 A CN115095285 A CN 115095285A CN 202211028857 A CN202211028857 A CN 202211028857A CN 115095285 A CN115095285 A CN 115095285A
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- China
- Prior art keywords
- contact roller
- pipe column
- groups
- seat
- seats
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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
- E21B19/10—Slips; Spiders ; Catching devices
- E21B19/102—Slips; Spiders ; Catching devices using rollers or spherical balls as load gripping elements
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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)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A pipe column slip comprises a base component and a slip component, wherein the base component is detachably and horizontally combined into an annular integral fixing seat, so that a pipe column can penetrate through the middle part of the integral fixing seat, the slip component comprises three groups of supporting seats, the three groups of supporting seats are arranged in the base component ring at equal intervals, contact rollers on the three groups of supporting seats are all in contact with the pipe column, when the pipe column drives the contact rollers to rotate, a winch capable of rotating coaxially with the contact rollers can pull a connecting frame connected with a reinforcing rod to move, and the three groups of reinforcing rods are in contact with the pipe column in a triangular structure; a stiffener for being equipped with cross connection between the supporting seat of chucking tubular column, and the stiffener can contact with the tubular column at slips chucking tubular column in-process, has effectively improved the fixed stability of slips to the tubular column.
Description
Technical Field
The invention relates to the technical field of oil and gas field development, in particular to a pipe column slip.
Background
In the well bore operation of oil extraction, when a tubular column with a larger length, such as a sleeve, an oil pumping rod and the like, is often required to be lifted out of a well mouth, the adopted method is that a lifting device is utilized to grasp or clamp one end of one section of tubular column positioned outside the well mouth under most conditions, the tubular column is directly lifted up until the joint of the two sections of tubular columns is pulled out of an inlet, and then the lower section of tubular column is clamped, so that the joint of the two sections of tubular columns is positioned outside the well mouth for disassembly, and the disassembly operation can be realized only under the condition that tubular column fixing equipment is provided, while the commonly used fixing equipment is a slip device with a one-way movement limiting function for limiting the position of the lifted tubular column, so that the tubular column is prevented from falling back into the well; in order to meet the requirements of preventing a pipe column from falling and lifting, most of the conventional slip devices clamp the pipe column in a mode that a plurality of groups of clamping blocks pointing to the axis of the pipe column are distributed around the pipe column in the circumferential direction to form an inverted funnel pointing to the underground, and because the clamping blocks in the slip are distributed along the radial direction of the pipe column and the friction direction of the clamping blocks and the pipe column is parallel to the pipe column, the clamping effect of the structure is almost realized by depending on the tight extrusion of the clamping blocks and the surface of the pipe column, so that when any one group of the clamping blocks distributed in the circumferential direction is loosened, the uneven stress on the surface of the pipe column can be caused, and the great influence is caused on the overall clamping stability of the conventional slip; in addition, because the friction of the fixed pipe column is provided by a plurality of groups of clamping blocks in a plurality of groups of slips, a large amount of manpower is inevitably consumed when the slips are clamped and unloaded, and the labor cost is high.
Disclosure of Invention
In view of the above, the invention aims to provide a pipe string slip, which has a simple structure, so that a more stable structure can be formed between supporting seats for fixing a pipe string in the slip, the overall stability of the pipe string fixed by the slip is improved, the slip can be automatically locked, the dismounting and mounting processes are simple, and the labor cost can be effectively saved.
In order to solve at least one technical problem, the invention provides a technical scheme that,
the pipe column slip comprises a base component and a slip component, wherein the base component comprises a first half fixing seat and a second half fixing seat which are detachably and horizontally combined to form an annular integral fixing seat, so that a pipe column can penetrate through the middle part of the integral fixing seat; the slip assembly comprises three groups of supporting seats, the three groups of supporting seats are circumferentially arranged in a ring of an integral fixing seat formed by the first half fixing seat and the second half fixing seat at equal intervals, and the three groups of supporting seats all point to a central shaft of the integral fixing seat; any one of the three groups of supporting seats comprises a main supporting frame and a contact roller, a sliding groove pointing to the middle shaft of the integral fixing seat is arranged on the main supporting frame, a sliding block capable of sliding to any position in the sliding groove is arranged in the sliding groove, and a connecting frame is arranged on the sliding block; the contact roller is arranged at one end, closest to the central shaft of the integral fixing seat, of the main support frame and can rotate around the shaft, the contact roller can be in contact with the pipe column, the contact roller is not parallel to the horizontal plane, the contact roller is also coaxially connected with a coaxial winch capable of synchronously rotating along with the contact roller, a driving steel cable is wound on the coaxial winch, the driving steel cable penetrates through a communication hole in the supporting seat and extends into the sliding groove and is connected with the sliding block, and therefore when the pipe column drives the contact roller to rotate, the coaxial winch can pull the connecting frame to move towards the central shaft of the integral fixing seat; the main support frames of the three groups of support seats are respectively provided with a reinforcing rod seat, a reinforcing rod capable of rotating around the reinforcing rod seat is connected to the reinforcing rod seat, the other end of the reinforcing rod is hinged to the connecting frame of the adjacent support seat, and only one group of reinforcing rods is arranged between the two adjacent groups of support seats; the stiffener is the telescopic elasticity body of rod, and can rotate to contacting with the tubular column around the stiffener seat under the pulling of link.
In one embodiment of the present invention, the surface of the contact roller that can contact the pipe string is a rough surface.
One embodiment of the invention is that the reinforcing rod is hinged with the connecting frame through a connecting bolt.
In one embodiment of the invention, the reinforcing rod is a rigid rod body which can be extended and retracted.
In one embodiment of the present invention, the side surface of the reinforcing bar is a rough surface.
One embodiment of the invention provides that the contact roller is not parallel to a vertical plane.
The invention has the technical effects that:
a stiffener that is equipped with cross connection between the supporting seat for chucking tubular column, and the stiffener can contact with the tubular column at slips chucking tubular column in-process, and the reinforcing supporting seat ensures the fixed effect of supporting seat to the tubular column, has realized the automatic locking function of slips with simple structure, has effectively improved the fixed stability of slips to the tubular column, and has saved the cost of labor of installation and dismantlement.
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 perspective view of the overall structure of the present invention;
FIG. 2 is a top view of the overall structure of the present invention;
FIG. 3 is a perspective view of the entire structure of the support base of the present invention;
FIG. 4 is a perspective view of the present invention with the reinforcing rods being retractable rigid rods;
in the figure, 1-a first half fixed seat, 2-a second half fixed seat, 3-a supporting seat, 4-a reinforcing rod, 5-a pipe column, 31-a main supporting frame, 32-a sliding groove, 33-a sliding block, 34-a connecting frame, 35-a connecting bolt, 36-a reinforcing rod seat, 37-a contact roller, 38-a coaxial winch, 39-a driving steel cable and 310-a communication hole.
Detailed Description
The present invention will be described in further detail with reference to the following examples and the accompanying drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Example (b):
referring to fig. 1 and 2, a pipe string slip includes a base assembly and a slip assembly,
the base subassembly includes half first fixing base 1 and half fixing base 2 of second, both detachably levels are constituteed and are annular whole fixing base, make tubular column 5 can pass whole fixing base middle part, the slips subassembly includes three supporting seat 3 of group, 3 equidistant circumference of three supporting seat of group set up in the intra-annular of the whole fixing base that half first fixing base 1 and half fixing base 2 of second are constituteed, and the axis of the equal directional whole fixing base of three supporting seat 3 of group, when establishing the slips card to tubular column 5 on, fold half first fixing base 1 and half fixing base 2 of second respectively fixedly, make three supporting seat 3 of group that set up respectively on half first fixing base 1 and half fixing base 2 of second form the contact with tubular column 5 with the position of the three extreme point of triangle-shaped, constitute stable contact system.
Referring to fig. 3, any one of the three sets of supporting seats 3 comprises a main supporting frame 31 and a contact roller 37, the contact roller 37 is disposed on the main supporting frame 31 at an end closest to the central axis of the integral fixing seat and is rotatable around the axis, and the contact roller 37 can contact the tubular column 5, so that the contact roller 37 is directly contacted and rubbed with the tubular column 5 in the supporting seat 3.
The main support frame 31 is provided with a sliding chute 32 pointing to the middle shaft of the integral fixed seat, the sliding chute 32 is provided with a sliding block 33 capable of sliding to any position in the sliding chute 32, the sliding block 33 is provided with a connecting frame 34, the contact roller 37 is also coaxially connected with a coaxial winch 38 capable of synchronously rotating along with the contact roller 37, the coaxial winch 38 is provided with a driving steel cable 39 in a twisting manner, the driving steel cable 39 penetrates through a communication hole 310 on the support seat 3 and extends into the sliding chute 32 and is connected with the sliding block 33, so that when the tubular column 5 drives the contact roller 37 to rotate, the coaxial winch 38 can pull the connecting frame 34 to move towards the central shaft of the integral fixed seat, it can be seen that when the contact roller 37 is initially contacted with the tubular column 5, the tubular column 5 has a downward allowance and can drive the contact roller 37 to rotate, further the coaxial winch 38 also rotates, the driving steel cable 39 penetrating through the communication hole 310 is pulled until the sliding block 33 is pulled to one side of the sliding chute 32 close to the tubular column 5 and is clamped and fixed, so that the contact roller 37 also stops rotating, and the pipe column 5 is limited to descend by virtue of friction, thereby realizing the automatic locking 5 of the pipe column 5.
As can be seen from fig. 3, the main support frame 31 of each of the three groups of support seats 3 is provided with a stiffener seat 36, the stiffener seat 36 is connected with a stiffener 4 capable of rotating around the stiffener seat 36, and the other end of the stiffener 4 is hinged to the connecting frame 34 of the adjacent support seat 3, only one group of stiffener 4 is arranged between the two adjacent groups of support seats 3, the stiffener 4 is a telescopic elastic rod body, such as a rod body formed by rubber or spring, and can rotate around the stiffener seat 36 to contact with the tubular column 5 under the pulling of the connecting frame 34, the part of the stiffener 4 connected to the stiffener seat 36 cannot move but can rotate around the axis, when the contact roller 37 is driven by the tubular column 5 to finally pull the slider 33 and the connecting frame 34 to move to the position closest to the tubular column 5, the stiffener 4 rotates towards the tubular column 5 with the stiffener seat 36 as the axis while being elongated, until it comes into tight contact with the pipe string 5, assisting the contact roller 37 in providing a stable friction action to the pipe string 5; in addition, only be provided with a set of stiffener 4 between two adjacent sets of supporting seats 3, the connection structure that forms between three sets of supporting seats 3 is as shown in fig. 1, the triangular structure shown in fig. 2, and with tubular column 5 centre gripping at the middle part of this triangular structure, other structures that probably realize for more quantity of supporting seats 3, the rhombus structure that probably realizes like four sets of supporting seats 3, the pentagon structure that probably realizes of five sets of supporting seats 3 etc., the triangular structure who provides by three sets of supporting seats 3 that adopts in this embodiment is comparatively stable, can be with comparatively simple structure, make as far as possible to have great contact surface between stiffener 4 and the tubular column 5, and the material has been saved simultaneously, further improvement to the stability of the support of tubular column 5 between each supporting seat 3.
In this embodiment, the surface of the contact roller 37 that can contact the tubular column 5 is a rough surface, so that the contact roller 37 has a better fixing effect on the tubular column 5.
The reinforcing rod 4 is hinged with the connecting frame 34 through the connecting bolt 35, so that the reinforcing rod 4 and the connecting frame 34 are allowed to be detached, when the slip is installed on the pipe column 5, the three groups of supporting seats 3 are tightly attached to the pipe column 5 through the combination of the first half fixing seat 1 and the second half fixing seat 2, then the reinforcing rod 4 and the connecting frame 34 are hinged through the connecting bolt 35, triangular clamping on the pipe column 5 is completed, and the connecting bolt 35 is used for facilitating installation of the whole slip.
Referring to fig. 4, the reinforcing rod 4 is a telescopic rigid rod body, the rigid rod body has better strength, and can be in closer contact with the tubular column 5, and the formed triangular structure is more stable, and the telescopic structure allows the reinforcing rod 4 to change the length thereof when the connecting frame 34 moves, the type of the rigid reinforcing rod 4 can be a telescopic structure such as a damping telescopic structure, which is not particularly limited herein, and the side surface of the reinforcing rod 4 is a rough surface, so that the friction coefficient of the surface of the reinforcing rod for contacting the tubular column 5 is higher, and the friction effect of the reinforcing rod 4 on the tubular column 5 is further improved.
The contact roller 37 is not parallel to the horizontal plane, when the contact roller 37 is parallel to the horizontal plane, the pipe column 5 is perpendicular to the contact roller 37, the contact roller 37 cannot be driven to rotate, and further the reinforcing rod 4 cannot be pulled to contact the pipe column 5, in this embodiment, the contact roller 37 is not parallel to the vertical plane, that is, the contact roller 37 is in contact with the pipe column 5 in a vertical state by adopting an inclined shape as shown in fig. 1, so that the acting force of the pipe column 5 on the contact roller 37 in the vertical direction can be decomposed into a force perpendicular to the rotating plane of the contact roller 37 and a force parallel to the rotating plane of the contact roller 37, the force that the pipe column 5 can drive the contact roller 37 to rotate is not completely equal to the original gravity, and the contact roller 37 more easily fixes the pipe column 5 through friction.
In the description of the present invention, it is to be noted that the terms "upper", "lower", "front", "rear", "left", "right", "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 in describing 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 in a specific orientation, and be operated, and should not be construed as limiting the present invention.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A pipe string slip comprising a base assembly and a slip assembly, wherein,
the base component comprises a first half fixed seat (1) and a second half fixed seat (2), and the first half fixed seat and the second half fixed seat can be detachably and horizontally combined to form an annular integral fixed seat, so that the pipe column (5) can penetrate through the middle part of the integral fixed seat;
the slip assembly comprises three groups of supporting seats (3), the three groups of supporting seats (3) are circumferentially arranged in a ring of an integral fixing seat formed by a first half fixing seat (1) and a second half fixing seat (2) at equal intervals, and the three groups of supporting seats (3) point to a central shaft of the integral fixing seat;
any one group of supporting seats (3) in the three groups of supporting seats (3) comprises a main supporting frame (31) and a contact roller (37), a sliding groove (32) pointing to the middle shaft of the integral fixing seat is arranged on the main supporting frame (31), a sliding block (33) capable of sliding to any position in the sliding groove (32) is arranged in the sliding groove (32), and a connecting frame (34) is arranged on the sliding block (33);
the contact roller (37) is arranged at one end, closest to the central axis of the integral fixed seat, of the main support frame (31) and can rotate around the axis, the contact roller (37) can be in contact with the pipe column (5), the contact roller (37) is not parallel to the horizontal plane, the contact roller (37) is also coaxially connected with a coaxial winch (38) capable of synchronously rotating along with the contact roller (37), a driving steel cable (39) is wound on the coaxial winch (38), and the driving steel cable (39) penetrates through a communication hole (310) in the support seat (3) and extends into the sliding groove (32) and is connected with the sliding block (33), so that when the pipe column (5) drives the contact roller (37) to rotate, the coaxial winch (38) can pull the connecting frame (34) to move towards the central axis of the integral fixed seat;
reinforcing rod seats (36) are arranged on the main support frames (31) of the three groups of support seats (3), reinforcing rods (4) capable of rotating around the reinforcing rod seats (36) are connected onto the reinforcing rod seats (36), the other ends of the reinforcing rods (4) are hinged to connecting frames (34) of adjacent support seats (3), and only one group of reinforcing rods (4) is arranged between two adjacent groups of support seats (3);
the reinforcing rod (4) is a telescopic elastic rod body and can rotate around the reinforcing rod seat (36) to be in contact with the pipe column (5) under the pulling of the connecting frame (34).
2. The pipe string slip of claim 1, wherein: the surface of the contact roller (37) capable of contacting with the pipe column (5) is a rough surface.
3. The pipe string slip of claim 1, wherein: the reinforcing rod (4) is hinged with the connecting frame (34) through a connecting bolt (35).
4. The pipe string slip of claim 1, wherein: the reinforcing rod (4) is a telescopic rigid rod body.
5. The pipe string slip of claim 1, wherein: the side surface of the reinforcing rod (4) is a rough surface.
6. The pipe string slip of claim 1, wherein: the contact roller (37) is not parallel to a vertical plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211028857.5A CN115095285B (en) | 2022-08-26 | 2022-08-26 | Pipe column slip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211028857.5A CN115095285B (en) | 2022-08-26 | 2022-08-26 | Pipe column slip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115095285A true CN115095285A (en) | 2022-09-23 |
| CN115095285B CN115095285B (en) | 2022-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211028857.5A Active CN115095285B (en) | 2022-08-26 | 2022-08-26 | Pipe column slip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115095285B (en) |
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2022
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| CN215485922U (en) * | 2021-08-20 | 2022-01-11 | 山东大学 | Cover plate buffering type hydraulic slip device |
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| Publication number | Publication date |
|---|---|
| CN115095285B (en) | 2022-11-04 |
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