CN109236205B - Pipe column elevator - Google Patents
Pipe column elevator Download PDFInfo
- Publication number
- CN109236205B CN109236205B CN201811374384.8A CN201811374384A CN109236205B CN 109236205 B CN109236205 B CN 109236205B CN 201811374384 A CN201811374384 A CN 201811374384A CN 109236205 B CN109236205 B CN 109236205B
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- shell
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- 238000000034 method Methods 0.000 description 10
- 238000005553 drilling Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B19/02—Rod or cable suspensions
- E21B19/06—Elevators, i.e. rod- or tube-gripping devices
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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)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A pipe string elevator relates to the technical field of elevators and comprises a shell and a reducing assembly; the shell comprises a first shell and a second shell, an opening for the pipe column to pass through is formed between the first shell and the second shell, one end of the first shell and one end of the second shell are hinged, and the other ends of the first shell and the second shell are movably connected so that the shells can be opened and closed; the reducing subassembly includes a plurality of movable blocks, a plurality of movable blocks end to end connect in proper order and form a snap ring that supplies the tubular column to pass, sliding connection between two adjacent movable blocks of snap ring, every movable block sliding connection in on the casing, the aperture of snap ring can reduce and enlarge under the exogenic action, wherein two adjacent movable blocks of snap ring are in can separate when the casing is opened. The size in adjustable elevator aperture of tubular column elevator of this application embodiment, the tubular column of the applicable multiple different external diameter specifications.
Description
Technical Field
The application relates to but is not limited to the technical field of elevator used in oil and gas field drilling and completion, in particular to a tubular string elevator.
Background
In the drilling and completion operation process of the oil and gas field, the specifications of a drill rod, a casing pipe, an oil pipe and other tools are various, the outer diameters of tools with different specifications are generally different, an elevator with the same outer diameter as a pipe column needs to be replaced in the drilling and completion operation so as to lift and place the pipe column, the drilling platform needs to be provided with various elevators with different calibers for standby, the elevator replacing operation time is long, the operation is complex, the elevators with different calibers need to be frequently replaced in the special operation process so as to be matched with the pipe columns with different types, the drilling and completion operation time is indirectly prolonged, and the operation efficiency is reduced.
At present, the field elevator mainly has the following problems: 1. the standby elevators on the drilling platform are more in types and quantity, and are respectively provided with a casing elevator, an oil pipe elevator, a drill pipe elevator and the like, and each type of elevator needs to be provided with a plurality of devices suitable for pipe columns with different apertures; 2. the elevator needs to be frequently replaced during special operation, the replacement is more complicated, and the operation needs a longer time.
Disclosure of Invention
One embodiment of the application provides a tubular string elevator, which comprises a shell and a reducing assembly; the shell comprises a first shell and a second shell, an opening for the pipe column to pass through is formed between the first shell and the second shell, one end of the first shell and one end of the second shell are hinged, and the other ends of the first shell and the second shell are movably connected so that the shells can be opened and closed; the reducing subassembly includes a plurality of movable blocks, a plurality of movable blocks end to end connect in proper order and form a snap ring that supplies the tubular column to pass, sliding connection between two adjacent movable blocks of snap ring, every movable block sliding connection in on the casing, the aperture of snap ring can reduce and enlarge under the exogenic action, wherein two adjacent movable blocks of snap ring are in can separate when the casing is opened.
Has the advantages that:
the pipe column elevator that this application embodiment provided through set up the reducing subassembly of adjustable aperture size in the casing, the pipe column of applicable multiple different external diameter specifications from this to unnecessary frequent change elevator to different external diameter's pipe column has improved the operating efficiency.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the present application and together with the examples of the present application do not constitute a limitation of the embodiments of the present application.
FIG. 1 is a schematic diagram of a tubular string elevator according to an embodiment of the present application;
FIG. 2 is a schematic structural view of a housing of a tubular string elevator according to an embodiment of the present application;
FIG. 3 is a schematic top view of a movable block of the reducing assembly according to an embodiment of the present disclosure;
FIG. 4 is a side view of the movable block of FIG. 3;
FIG. 5 is another side view of the movable block of FIG. 3;
fig. 6-9 are schematic structural diagrams of a reducing assembly of a tubular string elevator in four different aperture states according to an embodiment of the present disclosure;
the reference signs are: 1-a first housing; 2-a hinge shaft; 3-a second housing; 4-a movable block; 5-a connecting shaft; 6-hanging a second hanging ring; 7-a second pin hole; 8-a second working handle; 9-an opening and closing device; 10-a first working handle; 11-a first hanging ring hanging lug; 12-a first pin hole; 13-a guide groove; 14-a second slide; 15-a first groove; 16-a second groove; 17-a third groove; 18-a fourth groove; 19-a groove; 20-a first slide; 21-a rotating shaft; 22-a connector; 23-chute.
Detailed Description
The technical scheme of the application is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application.
As shown in fig. 1 to 9, an embodiment of the present application provides a tubular string elevator, including a housing and a reducing assembly; the casing comprises a first casing 1 and a second casing 3, an opening for a pipe column to pass through is formed between the first casing 1 and the second casing 3, one ends of the first casing 1 and the second casing 3 are hinged, and the other ends of the first casing 1 and the second casing 3 are movably connected to enable the casings to be opened and closed; the reducing subassembly includes a plurality of movable blocks 4, a plurality of movable blocks 4 end to end connection in proper order and form a snap ring that supplies the tubular column to pass, sliding connection between two adjacent movable blocks 4 of snap ring, 4 sliding connection of every movable block in on the casing, the aperture of snap ring can reduce and enlarge under the exogenic action, wherein two adjacent movable blocks 4 of snap ring are in can separate when the casing is opened.
The pipe column elevator that this application embodiment provided through set up the reducing subassembly of adjustable aperture size in the casing, the tubular column of applicable multiple different external diameter specifications from this to the unnecessary frequent change elevator of tubular column to different external diameter size has improved the operating efficiency, and has reduced the operation risk that the change elevator brought.
In an exemplary embodiment of the present application, each of the movable blocks 4 is provided with a sliding slot 23, a first sliding member 20 and a second sliding member 14, the first sliding member 20 of the previous movable block 4 in the snap ring is slidably connected in the sliding slot 23 of the next movable block 4, and the second sliding member 14 of each movable block 4 is slidably connected in the corresponding guiding slot 13 of the housing.
The sliding groove 23 and the first sliding member 20 of each movable block 4 are respectively located on different sides of the movable block 4, and the second sliding member 14 is located on the top surface and/or the bottom surface of the movable block 4. Accordingly, the guide groove 13 is provided at the top surface and/or the bottom surface of the housing. Illustratively, the cross section of each movable block 4 is trapezoidal, the structure of each movable block 4 is the same, the sliding groove 23 is located on the side of the movable block 4 where the long side of the trapezoid is located, and the first sliding member 20 is located on the side of the movable block 4 where the oblique side of the trapezoid is located. The ring hole of the snap ring formed by sequentially connecting the movable blocks 4 of the reducing assembly end to end is a polygonal hole which is approximately circular and can be a regular polygonal hole, in the reducing process, two adjacent movable blocks 4 slide relatively, the first sliding piece 20 of one movable block 4 slides along the sliding groove 23 of the other movable block 4, so that the side length of the polygonal hole of the snap ring is gradually increased or shortened, the aperture of the snap ring is gradually adjusted, and the aperture adjustable range is wider.
In other embodiments, when the aperture of the snap ring is adjusted to a certain size, in order to make the annular hole of the snap ring more match with the corresponding outer diameter of the tubular column, a plurality of grooves 19 with different radians are formed on the surface of the hole wall of each movable block 4 serving as the snap ring, and when the aperture of the snap ring is adjusted to a certain size, the grooves 19 with the same radian of each movable block 4 in the snap ring serve as the hole wall of the snap ring. Therefore, the ring hole shape of the clamping ring is more approximate to a circle and is more matched with a pipe column with a corresponding outer diameter; a plurality of grooves 19 with different radians are arranged on the corresponding surface of each movable block 4, so as to adapt to pipe columns with different outer diameter sizes. Illustratively, the sliding groove 23 and the plurality of grooves 19 of each movable block 4 are located on the same side surface of the movable block 4, and the plurality of grooves 19 are sequentially arranged along the extending direction of the sliding groove 23, so that two adjacent movable blocks 4 slide relatively during the diameter changing process, and the different grooves 19 of each movable block 4 can be adjusted to the position of the hole wall serving as the snap ring. As shown in fig. 3, the radian of the plurality of grooves 19 can be set as required, and can be set to a radian matched with several commonly used pipe columns, and the number of the grooves 19 can also be set as required, for example, three, four or more, as shown in fig. 3, when the number of the grooves 19 is four, the first groove 15, the second groove 16, the third groove 17 and the fourth groove 18 are respectively shown in the figure. In this embodiment, the groove 19 is an arc-shaped groove, and the curvature can be understood as the bending degree of the arc-shaped groove.
In the process of reducing, in order to reduce the sliding resistance between two adjacent movable blocks 4, a first sliding piece 20 arranged on each movable block 4 is rotatably connected to the movable block 4. Illustratively, the first sliding member 20 may be rotatably connected to the movable blocks 4 through a rotating shaft 21, and during the relative sliding of two adjacent movable blocks 4, the first sliding member 20 may freely rotate relative to the movable block 4 where it is located, so that the sliding between two adjacent movable blocks 4 is smoother.
The guide groove 13 may be configured to guide the movement of each movable block 4 when a rotational force is applied to the snap ring in the circumferential direction of the snap ring, so that each movable block 4 slides along a fixed trajectory within a certain range, thereby realizing the adjustment of the aperture size of the snap ring. Exemplarily, every the extending direction of guide way 13 with the circumference of snap ring is the same contained angle setting, the contained angle can be for being greater than the acute angle of zero degree, every guide way 13 can be the arc wall to each movable block 4 of guide slides along the arc orbit.
Under the condition that a rotating force along the circumferential direction of the clamping ring is applied to the clamping ring, because the guide grooves 13 and the circumferential direction of the clamping ring form a certain included angle, each movable block 4 can move towards the center of the clamping ring under the guide of the corresponding guide groove 13, and the adjustment of the aperture of the clamping ring can be realized due to the relative sliding effect between the adjacent movable blocks 4. By changing the direction of the applied rotating force, the aperture of the snap ring can be made larger or smaller, for example, in the present embodiment, when a clockwise rotating force is applied to the snap ring, the aperture of the snap ring will be gradually smaller, and when a counterclockwise rotating force is applied to the snap ring, the aperture of the snap ring will be gradually larger.
Because the movable blocks 4 in the snap ring are connected end to end in sequence, when a rotating force along the circumferential direction of the snap ring is applied to the snap ring, the rotating force can be applied to only one movable block 4 to realize the movement of all the movable blocks 4, and in order to realize the diameter change by the smooth movement of each movable block 4 in the snap ring under the action of external force, the diameter change assembly further comprises a connecting piece 22, and at least one of the movable blocks 4 which is in sliding connection with the first shell 1 is in rotating connection with the connecting piece 22 through a connecting shaft 5; or/and at least one movable block 4 connected with the second shell 3 in a sliding way is connected with another connecting piece 22 in a rotating way through a connecting shaft 5. In the diameter changing process, each movable block 4 can freely rotate around the respective connecting shaft 5.
To facilitate reducing by applying a force to the snap ring, the connector 22 may be provided on the outside of the housing, the force being applied to the connector 22. Exemplarily, slide ways (not shown in fig. 2) are provided on the housing, each connecting shaft 5 passes through a corresponding slide way to be rotatably connected to the corresponding connecting member 22, each slide way is arc-shaped and located on the same circle, each connecting member 22 can drive the corresponding connecting shaft 5 to rotate along the corresponding slide way under the action of an external force, and a plurality of slide ways on the first housing 1 or/and the second housing 3 may also be communicated to form one arc-shaped slide way.
In an exemplary embodiment, each movable block 4 slidably connected to the first housing 1 is rotatably connected to a connecting member 22 through a connecting shaft 5, each movable block 4 slidably connected to the second housing 3 is rotatably connected to another connecting member 22 through a connecting shaft 5, each of the first housing 1 and the second housing 3 is provided with an arc-shaped slideway through which the corresponding connecting shaft 5 passes, the two arc-shaped slideways are located on the same circle (i.e., the circle center is the same), and the two connecting members 22 can drive the corresponding connecting shaft 5 to rotate along the corresponding slideway under the action of external force, thereby driving each movable block 4 of the snap ring to move to realize diameter change, wherein the two connecting members 22 can be set to have the shape consistent to the slideway.
In other embodiments, the connecting piece 22 may be disposed inside the housing, for example, circular arc-shaped slideways are disposed on the first housing 1 or/and the second housing 3, and the connecting piece 22 is provided with an adjusting rod, the adjusting rod extends out of the corresponding slideway and can rotate along the corresponding slideway under the action of an external force, so that the adjusting rod moves along the slideway to drive each movable block 4 of the snap ring to move, thereby realizing diameter change.
In the above embodiments of the present application, the outer contour of the housing is not limited, and the opening is disposed in the middle of the housing, so that the housing is annular as a whole. Illustratively, the casing is wholly hollow structure, and its inside can install the reducing subassembly, and the top surface and the bottom surface of casing are equipped with and supply the tubular column to pass the trompil, and this trompil is in first casing 1 with between the second casing 3, through the fixed and separation of first casing 1 with the both swing joint end of second casing 3 for the trompil of casing can open and close, so that the tubular column can get into the trompil. The hinged ends of the first housing 1 and the second housing 3 can be rotatably connected through a hinge shaft 2, the two movable blocks 4 of the snap ring located at the movably connected ends of the first housing 1 and the second housing 3 are driven to be separated during the opening process of the housings, that is, the first sliding part 20 of one movable block of the two movable blocks 4 is separated from the sliding groove 23 of the other movable block, and the first sliding part 20 of one movable block of the two movable blocks 4 reenters the sliding groove 23 of the other movable block during the closing process of the housings. The movable connecting ends of the first shell 1 and the second shell 3 can be provided with an opening and closing device 9 for opening and closing the shells, and the movable connecting ends of the first shell 1 and the second shell 3 can be fixedly connected after the shells are closed, and meanwhile, the locking effect is achieved.
For making things convenient for the practical application of this application embodiment tubular column elevator, first casing 1 with be equipped with first rings hangers 11 and second rings hangers 6 on the second casing 3 respectively, be equipped with first cotter hole 12 and second cotter hole 7 on first rings hangers 11 and the second rings hangers 6 respectively, both insert the pin back respectively for connect rings in the actual operation. The first casing 1 and the second casing 3 are further provided with a first operating handle 10 and a second operating handle 8, respectively, for serving as handles when the casings are opened or closed.
In the actual hoisting process of a pipe column or a drill rod, the first hanging ring hanging lug 11 and the second hanging ring hanging lug 6 are respectively connected with a top drive through two hanging rings, when the pipe column or the drill rod needs to be hoisted for operation, the opening and closing device 9 is opened, the first shell 1 and the second shell 3 rotate relative to the hinge shaft 2 under the action of gravity and open the shells, then the pipe column or the drill rod is pushed into an opening of the elevator (namely, a ring hole of the clamping ring), and the first working handle 10 and the second working handle 8 are lifted to close the opening and closing device 9, so that the installation work of the pipe column or the drill rod can be completed.
In actual operation, when adopting the tubular column elevator of the above-mentioned embodiment of this application, can adjust the reducing subassembly of elevator to suitable aperture earlier after, block into the tubular column again, concrete operation is as follows: according to the outer diameter of the pipe column, acting force is applied to the connecting piece 22 or the adjusting rod to drive the connecting shaft 5 of the corresponding movable block 4 to rotate along the arc-shaped slide rail arranged on the shell, so that each movable block 4 of the clamping ring is driven to move to adjust the aperture of the clamping ring to a proper size; then with the swing joint end separation of first casing 1 and second casing 3 two, open promptly the casing is opening the casing in-process is opening the casing, wherein two adjacent movable blocks 4 of snap ring can be driven by first casing 1 and second casing 3 and separate, can place the tubular column in from this in the annular ring of snap ring, then close and lock the casing, make the circular bead of great external diameter on the tubular column block in the top of snap ring to hoist the tubular column, later can carry out the operation such as lifting or transferring of tubular column.
The pipe column elevator of the embodiment of the application is suitable for pipe column types such as drill pipes, casings and oil pipes with different outer diameter sizes, and has universality and wide application range.
The tubular column elevator of the above-mentioned embodiment of this application can change the aperture of elevator in order to adapt to the tubular column of different diameters under the mode of not changing the elevator according to current tubular column type commonly used, has saved the time of changing the elevator, has reduced the kit cost, has increased the operation timeliness.
In the pipe string elevator of the above-mentioned embodiment of this application, be equipped with the recess 19 of different radians on the movable block 4 of reducing subassembly, the well completion pipe column such as drilling rod, sleeve pipe, oil pipe of adaptable not unidimensional.
The pipe column elevator of the embodiment of the application has small overall spatial layout and wide application range, and can be applied to various drilling devices such as a semi-submersible platform, a self-elevating platform, a semi-submersible platform of a single derrick, a drilling ship and the like of a semi-or double-derrick.
In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening elements, or may be connected through the interconnection between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
Claims (10)
1. A tubular string elevator which characterized in that: comprises a shell and a reducing component; the shell comprises a first shell and a second shell, an opening for the pipe column to pass through is formed between the first shell and the second shell, one end of the first shell and one end of the second shell are hinged, and the other ends of the first shell and the second shell are movably connected so that the shells can be opened and closed; the reducing subassembly includes a plurality of movable blocks, a plurality of movable blocks end to end connect in proper order and form a snap ring that supplies the tubular column to pass, sliding connection between two adjacent movable blocks of snap ring, every movable block sliding connection in on the casing, the aperture of snap ring can reduce and enlarge under the exogenic action, wherein two adjacent movable blocks of snap ring are in can separate when the casing is opened.
2. The pipe string elevator of claim 1, wherein: every all be equipped with spout, first slider and second slider on the movable block, preceding one in the snap ring the first slider sliding connection of movable block is in the spout of back one the movable block, every the equal sliding connection of second slider of movable block in the guide way that corresponds the setting on the casing.
3. The pipe string elevator of claim 2, wherein: every the guide way is the arc wall, every the extending direction of guide way with the circumference of snap ring is the same contained angle setting.
4. The pipe string elevator of claim 2, wherein: each movable block is used as the surface of the hole wall of the clamping ring, a plurality of grooves with different radians are arranged on the surface of the hole wall of the clamping ring, and under the condition that the hole diameter of the clamping ring is adjusted to be a certain size, the grooves with the same radian of each movable block in the clamping ring are used as the hole wall of the clamping ring.
5. The pipe string elevator of claim 4, wherein: every the movable block the spout with a plurality of recesses are located this movable block on same side, a plurality of recesses are followed the extending direction of spout sets gradually.
6. The pipe string elevator of claim 2, wherein: the sliding groove and the first sliding piece of each movable block are respectively positioned on different side surfaces of the movable block, and the second sliding piece is arranged on the top surface and/or the bottom surface of the movable block.
7. The pipe string elevator of claim 2, wherein: and a first sliding piece arranged on each movable block is rotationally connected to the movable block.
8. The pipe string elevator of claim 1, wherein: the reducing assembly further comprises a connecting piece, and at least one of the movable blocks in sliding connection with the first shell is in rotating connection with the connecting piece through a connecting shaft; or/and at least one of the movable blocks which are connected with the second shell in a sliding way is rotationally connected with another connecting piece through a connecting shaft.
9. The tubular string elevator of claim 8, wherein: be equipped with the slide on the casing, every the connecting axle passes corresponding slide and corresponds the connecting piece rotates to be connected, every the slide is circular-arc and is located same circle, every the connecting piece can drive the connecting axle that corresponds and rotate along corresponding slide under the exogenic action.
10. The tubular string elevator of claim 8, wherein: the first shell or/and the second shell are/is provided with arc-shaped slideways, the connecting piece is provided with an adjusting rod, and the adjusting rod extends out of the corresponding slideway and can rotate along the corresponding slideway under the action of external force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374384.8A CN109236205B (en) | 2018-11-19 | 2018-11-19 | Pipe column elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811374384.8A CN109236205B (en) | 2018-11-19 | 2018-11-19 | Pipe column elevator |
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| Publication Number | Publication Date |
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| CN109236205A CN109236205A (en) | 2019-01-18 |
| CN109236205B true CN109236205B (en) | 2020-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811374384.8A Active CN109236205B (en) | 2018-11-19 | 2018-11-19 | Pipe column elevator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115822473B (en) * | 2022-12-09 | 2023-10-31 | 四川宏华电气有限责任公司 | Tubular column elevator structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8833209B2 (en) * | 2004-01-23 | 2014-09-16 | Loggerhead Tools, Llc | Adjustable gripping tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203176014U (en) * | 2013-02-22 | 2013-09-04 | 中国石油天然气股份有限公司 | Reducing throat and hydraulic jet pump with same |
| CN203925338U (en) * | 2014-07-04 | 2014-11-05 | 王政 | A kind of well workover pipe string Elevator structure |
| CN106687073A (en) * | 2015-08-07 | 2017-05-17 | 卡迪奥万蒂奇医疗公司 | Crimper device |
| CN205497295U (en) * | 2016-03-25 | 2016-08-24 | 西安理工大学 | Self -adaptation reducing spanner |
| CN107598603A (en) * | 2017-08-30 | 2018-01-19 | 华南农业大学 | A kind of variable circular arc mechanism |
| CN207460895U (en) * | 2017-11-20 | 2018-06-08 | 北京乾建绿化工程有限公司 | A kind of topiaries assistance modeling device |
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