CN210422550U - Blowout preventer for top drive - Google Patents
Blowout preventer for top drive Download PDFInfo
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- CN210422550U CN210422550U CN201921573952.7U CN201921573952U CN210422550U CN 210422550 U CN210422550 U CN 210422550U CN 201921573952 U CN201921573952 U CN 201921573952U CN 210422550 U CN210422550 U CN 210422550U
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- sleeve
- stud
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- fixed
- rubber ring
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Abstract
The utility model discloses a top is driven and is used preventer, including first sleeve, second sleeve and gag lever post, first telescopic upside has the lantern ring through fixing bolt is fixed with, and is connected through first stud between the lantern ring, and the inboard of the lantern ring is fixed with the slipmat simultaneously, be provided with the sealing washer between first sleeve and the second sleeve, and the second sleeve passes through second stud to be fixed at first telescopic downside, and the second stud sets up the outside at the sealing washer simultaneously, first telescopic inboard and second telescopic inboard are all seted up flutedly, and are provided with rubber ring, pneumatic cylinder and removal cover in the recess, the rubber ring sets up in the inboard of removal cover, and the downside of removal cover is connected with the pneumatic cylinder through the hydraulic stem, the through-hole has been seted up to the telescopic bottom of second. When drilling is stopped, the movable sleeve moves upwards, and the rubber ring is squeezed and contracted until the rubber ring is tightly attached to the outer side of a drilling tool, so that the flow of oil is stopped.
Description
Technical Field
The utility model particularly relates to a preventer technical field specifically is a top is driven and is used preventer.
Background
The top drive is called as top drive well drilling device, which is a top drive well drilling system developed successively in the recent 20 years in America, France and Norway, the system obviously improves the capacity and efficiency of well drilling operation and becomes a standard product in the petroleum well drilling industry, the blowout preventer is used for closing a well mouth in the operation processes of oil testing, well repairing, well completion and the like to prevent blowout accidents, and is a common safe sealing well mouth device for preventing blowout in oil fields, and the blowout preventer is in unthreaded connection and is in special connection with external equipment, so that the vibration is reduced, and the service life is prolonged.
The in-process that current preventer was used, drilling tool still can rotate to lead to preventing spouting the effect not good, and internals is mostly fixed, thereby leads to changing the difficulty, and the replacement cost is great, therefore uses convenient inadequately, to above-mentioned problem, needs to improve current equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a top is driven and is used preventer to solve the current preventer that proposes in the above-mentioned background art at the in-process that uses, the drilling tool still can rotate, thereby lead to preventing spouting the effect not good, and internals is mostly fixed, thereby lead to changing the difficulty, and change into the great problem of cost.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a top is driven and is used preventer, includes first sleeve, second sleeve and gag lever post, first telescopic upside is fixed with the lantern ring through fixing bolt, and is connected through first stud between the lantern ring, and the inboard of the lantern ring is fixed with the slipmat simultaneously, be provided with the sealing washer between first sleeve and the second sleeve, and the second sleeve passes through second stud to be fixed at first telescopic downside, and the second stud sets up the outside at the sealing washer simultaneously, first telescopic inboard and second telescopic inboard are all seted up flutedly, and are provided with rubber ring, pneumatic cylinder and removal cover in the recess, the rubber ring sets up in the inboard that removes the cover, and removes the downside of cover and is connected with the pneumatic cylinder through the hydraulic stem, the through-hole has been seted up to the telescopic bottom of second.
Preferably, the lantern rings are provided with two, and the two lantern rings are symmetrically arranged.
Preferably, the second stud bolts are uniformly distributed on the outer side of the first sleeve and the outer side of the second sleeve.
Preferably, the outer side surface of the rubber ring and the inner side surface of the moving sleeve are inclined.
Preferably, the hydraulic cylinders and the movable sleeve form a telescopic structure through hydraulic rods, and the number of the hydraulic cylinders is two.
Preferably, the limiting rod is fixed on the outer side of the inner part of the second sleeve, the limiting rod is connected with a moving sleeve in a sliding mode, and the number of the limiting rods is four.
Compared with the prior art, the beneficial effects of the utility model are that: the blowout preventer is used for the top drive,
(1) the upper side of the pipeline penetrates through the through hole and then the external bolt is screwed on the top of the pipeline, so that the device is fixed on the pipeline, and the installation operation of the device is facilitated;
(2) after the device is installed, an oil drilling tool penetrates through the first sleeve and the second sleeve, oil can be upwards extracted out through gaps on the inner sides of the first sleeve and the second sleeve under the action of the oil drilling tool, and after the oil drilling tool works, the second stud bolt is removed to separate the first sleeve from the second sleeve, so that the rubber ring can be conveniently extracted out for replacement;
(3) when drilling needs to be stopped, the moving sleeve moves upwards, the rubber ring is squeezed and contracted until the rubber ring is tightly attached to the outer side of the drilling tool, so that oil flow is stopped, the fixing bolt and the first stud bolt are tightened, the lantern ring is fixed, and the anti-slip pad can increase friction between the lantern ring and the drilling tool, so that a certain reinforcing effect is achieved on the drilling tool, and the drilling tool is prevented from continuously working.
Drawings
Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the front view of the present invention;
fig. 3 is a schematic view of the top view structure of the present invention.
In the figure: 1. the anti-skid device comprises a first sleeve, 2, a lantern ring, 3, a fixing bolt, 4, a first stud, 5, an anti-skid pad, 6, a second sleeve, 7, a sealing ring, 8, a second stud, 9, a groove, 10, a rubber ring, 11, a hydraulic cylinder, 12, a hydraulic rod, 13, a moving sleeve, 14, a limiting rod, 15 and a through hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a top is driven and is used preventer, according to shown in figure 1, the upside of first sleeve 1 is fixed with the lantern ring 2 through fixing bolt 3, and is connected through first stud 4 between the lantern ring 2, and the inboard of the lantern ring 2 is fixed with slipmat 5 simultaneously, and the lantern ring 2 is provided with two, and two lantern ring 2 symmetries set up, screws up first stud 4 and can fix two lantern rings 2 together, screws up fixing bolt 3 and can fix the lantern ring 2 on first sleeve 1, and the lantern ring 2 can prevent that the drilling tool from continuing to rotate work.
According to fig. 1 and 2, a seal ring 7 is provided between the first sleeve 1 and the second sleeve 6, and the second sleeve 6 is fixed to the lower side of the first sleeve 1 by a second stud 8, meanwhile, the second stud bolts 8 are arranged on the outer side of the sealing ring 7, the second stud bolts 8 are uniformly distributed on the outer side of the first sleeve 1 and the outer side of the second sleeve 6, the first sleeve 1 can be detached from the second sleeve 6 by taking down the second stud bolts 8, the rubber ring 10 is conveniently taken out for periodic replacement, the inner side of the first sleeve 1 and the inner side of the second sleeve 6 are both provided with grooves 9, and the groove 9 is internally provided with a rubber ring 10, a hydraulic cylinder 11 and a movable sleeve 13, the outer side surface of the rubber ring 10 and the inner side surface of the movable sleeve 13 are inclined, and the movable sleeve 13 can drive the rubber ring 10 to contract in the upward movement process, so that the flow of oil is prevented, and the aim of blowout prevention is fulfilled.
According to fig. 1, 2 and 3, the rubber ring 10 is arranged on the inner side of the movable sleeve 13, the lower side of the movable sleeve 13 is connected with the hydraulic cylinder 11 through the hydraulic rod 12, the hydraulic cylinder 11 and the movable sleeve 13 form a telescopic structure through the hydraulic rod 12, the number of the hydraulic cylinders 11 is two, the movable sleeve 13 can move upwards under the action of the hydraulic cylinder 11 and the hydraulic rod 12, subsequent operation is facilitated, the limiting rod 14 is fixed on the outer side of the inner part of the second sleeve 6, the movable sleeve 13 is connected on the limiting rod 14 in a sliding mode, meanwhile, the number of the limiting rods 14 is four, the limiting rod 14 plays a certain limiting role in the upward moving process of the movable sleeve 13, the movable sleeve 13 is prevented from shaking, and the bottom of the second sleeve 6 is provided with the through hole 15.
The working principle is as follows: when the blowout preventer for top drive is used, firstly, the upper side of the pipeline penetrates through the through hole 15 and an external bolt is screwed on the top of the pipeline, thereby fixing the device, the device is connected to an external power supply, a drilling tool penetrates through the first sleeve 1 and the second sleeve 6 and is placed on the inner side of the pipeline, thereby performing oil pumping work, oil flows out through a gap on the inner sides of the first sleeve 1 and the second sleeve 6, when oil pumping is stopped, the hydraulic cylinder 11 is started, the hydraulic cylinder 11 drives the hydraulic rod 12 to extend, thereby driving the movable sleeve 13 to move upwards, and during the upward movement of the movable sleeve 13, the outer side slides on the limiting rod 14, the rubber ring 10 is compressed by the extrusion action of the movable sleeve 13 and clings to the outer surface of the drilling tool, thereby stopping the flow of the oil, and then the fixed bolt 3 and the first stud 4 are screwed, thereby fixing the drilling collar 2, the anti-slip pad 5 can increase the friction between the collar 2 and the drilling tool, therefore, the continuous rotation of the drilling tool is stopped, so that the purpose of blowout prevention is achieved, after the work is finished, the second stud 8 is removed, the first sleeve 1 and the second sleeve 6 can be separated, the rubber ring 10 is convenient to take out for replacement, in the process that the first sleeve 1 and the second sleeve 6 are connected together, the sealing ring 7 can play a role in enhancing the sealing performance, and the whole work is finished, and the content which is not described in detail in the description belongs to the prior art which is well known to a person skilled in the art.
The terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the scope of the invention.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. The utility model provides a blowout preventer is used on top drive, includes first sleeve (1), second sleeve (6) and gag lever post (14), its characterized in that: the upper side of the first sleeve (1) is fixed with a sleeve ring (2) through a fixing bolt (3), the sleeve rings (2) are connected through a first stud (4), meanwhile, the inner side of the sleeve ring (2) is fixed with an anti-slip pad (5), a sealing ring (7) is arranged between the first sleeve (1) and the second sleeve (6), the second sleeve (6) is fixed on the lower side of the first sleeve (1) through a second stud (8), meanwhile, the second stud (8) is arranged on the outer side of the sealing ring (7), grooves (9) are formed in the inner side of the first sleeve (1) and the inner side of the second sleeve (6), a rubber ring (10), a hydraulic cylinder (11) and a moving sleeve (13) are arranged in the grooves (9), the rubber ring (10) is arranged on the inner side of the moving sleeve (13), and the lower side of the moving sleeve (13) is connected with the hydraulic cylinder (11) through a hydraulic rod (12), the bottom of the second sleeve (6) is provided with a through hole (15).
2. The top drive blowout preventer of claim 1, wherein: the lantern ring (2) is provided with two, and two lantern ring (2) symmetry sets up.
3. The top drive blowout preventer of claim 1, wherein: the second stud bolts (8) are uniformly distributed on the outer side of the first sleeve (1) and the outer side of the second sleeve (6).
4. The top drive blowout preventer of claim 1, wherein: the outer side surface of the rubber ring (10) and the inner side surface of the movable sleeve (13) are both inclined.
5. The top drive blowout preventer of claim 1, wherein: the hydraulic cylinders (11) and the movable sleeve (13) form a telescopic structure through hydraulic rods (12), and two hydraulic cylinders (11) are arranged.
6. The top drive blowout preventer of claim 1, wherein: the limiting rod (14) is fixed on the outer side of the inner portion of the second sleeve (6), the limiting rod (14) is connected with a moving sleeve (13) in a sliding mode, and four limiting rods (14) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921573952.7U CN210422550U (en) | 2019-09-20 | 2019-09-20 | Blowout preventer for top drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921573952.7U CN210422550U (en) | 2019-09-20 | 2019-09-20 | Blowout preventer for top drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210422550U true CN210422550U (en) | 2020-04-28 |
Family
ID=70367412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921573952.7U Active CN210422550U (en) | 2019-09-20 | 2019-09-20 | Blowout preventer for top drive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210422550U (en) |
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2019
- 2019-09-20 CN CN201921573952.7U patent/CN210422550U/en active Active
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