CN115045626B - Clamp head device and method for automatic preemptive connection of check valve of drilling tool - Google Patents
Clamp head device and method for automatic preemptive connection of check valve of drilling tool Download PDFInfo
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- CN115045626B CN115045626B CN202210645389.XA CN202210645389A CN115045626B CN 115045626 B CN115045626 B CN 115045626B CN 202210645389 A CN202210645389 A CN 202210645389A CN 115045626 B CN115045626 B CN 115045626B
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- check valve
- drilling tool
- sliding block
- clamp
- clamping
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- 238000005553 drilling Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 99
- 230000008569 process Effects 0.000 claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000000080 chela (arthropods) Anatomy 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
- E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention provides a clamp head device and a clamp head method for automatically connecting check valves of drilling tools in a robbing way. The clamp head device comprises a first sliding block, a second sliding block, a first driving mechanism, a second driving mechanism, a main clamp and a back clamp; wherein the first sliding block is positioned above the second sliding block; the first driving mechanism can drive the first sliding block to slide up and down; the second driving mechanism can drive the second sliding block to slide up and down; the main clamp is connected with the first sliding block and has a turnbuckle function, and the main clamp can also be connected with a check valve of the drilling tool; the back-up tong is connected with the second sliding block and is positioned below the main tong, and the back-up tong can clamp the drilling tool or the check valve of the drilling tool. The method is realized by the clamp head device based on the automatic preemptive drilling tool check valve. The beneficial effects of the invention include: the automatic blowout control device can perform automatic blowout control work of a wellhead, and avoid errors caused by manual blowout control of a check valve of a drilling tool; the efficiency and the reliability of the blowout robbing work can be improved, and the casualties in the blowout robbing process are avoided.
Description
Technical Field
The invention relates to the technical field of emergency rescue after blowout of an oil gas well is out of control, in particular to a clamp head device and a clamp head method for an automatic emergency connection drilling tool check valve.
Background
In oilfield drilling operations, a blowout accident occurs at some time, and the blowout refers to a phenomenon in which formation fluids (oil, gas and water) continuously gush out without control, blow out from the ground or invade other low-pressure layers. Emergency measures should be taken immediately after blowout occurs to carry out blowout control, otherwise, once out of control, not only damage to drilling equipment, scrapping of oil and gas wells and other property losses can be caused, but also casualties can be caused.
At present, the common treatment method for each domestic oil field is to manually install check valves by petroleum workers, but the manual blowout control operation has the following problems: ① When blowout is carried out, a large amount of mud, oil gas and various harmful gases are generally sprayed out, and when blowout is carried out, if the natural gas content is high, fire and explosion can be caused, and if a sulfur-containing gas well is in a blowout stratum, hydrogen sulfide in the blowout stratum is diffused into the air, so that the harm to a human body is very serious, and the operation environment is very bad and dangerous. ② Once the open-end tool fails, the fluid ejected from the water hole has high ejection pressure and high speed, so that on-site operators cannot approach the open-end tool. ③ The check valve of the drilling tool is difficult to realize fast in buckling and screwing, and the success rate of on-site connection of the check valve of the drilling tool is seriously affected.
The Chinese patent publication No. CN201620797U discloses a quick spraying tool, which comprises a tee joint, wherein a vertical channel with a first channel opening and a second channel opening and a lateral channel communicated with the vertical channel are arranged in the tee joint, the opening of the lateral channel is a third channel opening, a gate is correspondingly arranged at the third channel opening, a spraying gland is correspondingly and detachably arranged at the first channel opening, and the second channel opening is used for being connected with a large four-way joint. The Chinese patent publication No. CN2890324Y discloses a large-scale wellhead blowout preventer mounting and fixing tool, which comprises a wellhead fixing mechanism and a mounting connecting plate, wherein the mounting connecting plate is fixedly connected with the wellhead fixing mechanism. The two blowout robbing tools still need personnel to operate, are suitable for manually and rapidly robbing and spraying when blowout occurs, have high requirements on quality of operators, and still have great casualties.
In recent years, automatic blowout control tools are in existence in China, and because the space of a drill floor is limited, the automatic blowout control tools occupy a large space of the drill floor to influence normal drilling operation, so that the automatic blowout control tools are not widely used.
Disclosure of Invention
The present invention is directed to solving one or more of the problems of the prior art, including the shortcomings of the prior art. For example, one of the purposes of the invention is to be able to perform automatic blowout control of the wellhead, avoiding errors in the manual connection of the check valve of the drilling tool; and secondly, the efficiency and the reliability of the blowout robbing work are improved, and the casualties in the blowout robbing process are avoided.
In order to achieve the above purpose, the invention provides a clamp head device for automatically connecting a check valve of a drilling tool in a robbing way.
The binding clip device may include a first slider, a second slider, a first drive mechanism, a second drive mechanism, a main clip, and a back clip. Wherein the first sliding block is positioned above the second sliding block; the first driving mechanism can drive the first sliding block to slide up and down; the second driving mechanism can drive the second sliding block to slide up and down; the main clamp is connected with the first sliding block and has a turnbuckle function, and the main clamp can also be connected with a check valve of the drilling tool; the back-up tong is connected with the second sliding block and is positioned below the main tong, and the back-up tong can clamp the drilling tool or the check valve of the drilling tool.
Further, the binding clip device may further comprise a connection housing; the first sliding block and the second sliding block are both in sliding connection with the connecting shell.
Further, the first and second driving mechanisms may be both hydraulic driving devices; wherein, the hydraulic cylinder or the hydraulic rod of the first driving mechanism can be fixed on the connecting shell; the hydraulic cylinder or the hydraulic rod of the second drive mechanism may be fixed to the connection housing.
Further, the main clamp may include a motor, a gear assembly, and an adapter; the motor can realize speed reduction and torque increase through the gear transmission assembly; the adapter can rotate along the central axis of the adapter under the drive of the gear transmission component, and the adapter can be connected with the check valve of the drilling tool.
Further, the gear assembly may include a first drive gear and a second drive gear meshed with each other, the first drive gear having a radial dimension that is less than a radial dimension of the second drive gear; the motor can drive the first transmission gear to rotate along the central axis of the motor; the adapter is positioned below the second transmission gear and connected with the middle part of the second transmission gear.
Further, the binding clip device may further include a third driving mechanism and a closing mechanism; the third driving mechanism can drive the closing mechanism to complete the closing operation of the check valve of the drilling tool.
Further, the third driving mechanism may include a hydraulic cylinder, a pressing rod, and a hold-down piece; the hydraulic cylinder can drive the pressing rod to move downwards or upwards, and under the condition that the pressing rod moves downwards, the hydraulic cylinder can drive the pressing piece to move downwards; the closing mechanism can be driven to complete the closing operation of the check valve of the drilling tool in the downward moving process of the pressing piece.
Further, the main clamp is provided with a conversion joint for connecting a check valve of the drilling tool, and a slide rail which is transversely penetrated and longitudinally extends is arranged on the conversion joint and forms a channel for moving up and down. The lower pressing piece can comprise a cross rod, a vertical rod and a top ring which are sequentially connected from top to bottom; the cross rod passes through the slideway on the conversion joint and can move up and down along the slideway; the vertical rod can drive the top ring to move up and down under the action of the cross rod; the top ring is sleeved on the check valve of the drilling tool, and can finish closing operation of the check valve of the drilling tool in the downward moving process.
Further, the closing mechanism may be mounted on the drill check valve, and may include a third transfer gear, a rack, and a tap valve shaft; wherein, the rack and the third transmission gear are longitudinally arranged and form a gear pair; the valve shaft of the cock vertically passes through the third transmission gear and is fixedly connected, and the valve shaft of the cock can rotate along the central axis of the valve shaft of the cock under the drive of the third transmission gear.
Further, the closing mechanism may further include a catch and a mounting plate; the third transmission gear is rotatably arranged on the clamping piece; the mounting plate is longitudinally arranged and connected to the clamping piece, and the rack is connected to the mounting plate.
Further, the back-up tong may comprise a base plate, a first clamping assembly and a second clamping assembly; the bottom plate is transversely arranged and fixedly connected with the second sliding block; the first clamping component and the second clamping component are oppositely arranged. The first clamping assembly may include a first telescoping mechanism and a first clamping arm both disposed transversely and hinged; the first telescopic mechanism can also be fixed on the upper plate surface of the bottom plate; the first clamping arm is also in rotary connection with the base plate. The second clamping assembly may include a second telescoping mechanism and a second clamping arm both disposed transversely and hinged; the second telescopic mechanism can also be fixed on the upper plate surface of the bottom plate; the second clamping arm is also in rotary connection with the bottom plate.
Further, the first clamping assembly may further include a first clamping head disposed at an end of the first clamping arm; the second clamping assembly may further comprise a second clamping head disposed at an end of the second clamping arm.
Further, a third clamping head can be arranged on the bottom plate.
Further, the binding clip device may further include a connection mechanism for connecting the main clip and the first slider, and the connection mechanism may include: the device comprises a plurality of polished rods, a plurality of first springs, a plurality of second springs, a connecting plate, a pressing plate and a fixing piece. The polished rod is vertically arranged on the first sliding block; through holes which have the same number of polished rods and are in one-to-one correspondence are formed in the connecting plate and the pressing plate, and the aperture of each through hole is not smaller than the rod diameter of the polished rod; the first springs, the connecting plates, the second springs and the pressing plates are sequentially arranged from bottom to top and sleeved on the polished rods, the number of the first springs sleeved on each polished rod is at most 1, and the number of the second springs sleeved on each polished rod is at most 1; the mounting can fix the clamp plate on the polished rod.
In order to achieve the above object, another aspect of the present invention provides a method for preemptively connecting a check valve of a drilling tool.
The method can be realized by a clamp head device based on the automatic preemptive drilling tool check valve.
Compared with the prior art, the beneficial effects of the invention can comprise at least one of the following:
(1) The invention adopts the mode of matching the main pincers and the back pincers to complete the positioning centering, the turnbuckle installation, the shackle separation and other work of the check valve of the drilling tool, and can safely and reliably complete the rush-installing work of the check valve of the drilling tool.
(2) The invention is applied to automatic blowout control operation of a wellhead, can effectively and reliably carry out the operation of mounting the check valve of the drilling tool in a robbery way, avoids the error caused by the operation of manually connecting the check valve of the drilling tool in a robbery way, and can start the clamp head device by one key to rescue when the blowout is serious and a blowout control worker cannot arrive at the site, thereby avoiding the casualties in the blowout control process.
(3) The main clamp is provided with the conversion joint, the check valve of the drilling tool can be arranged on the main clamp, the check valve of the drilling tool can be opened through the gear rack structure, and the pressure born by the clamp head in the process of installing the check valve of the drilling tool can be reduced.
(4) The main pliers are connected with the first sliding block through the polished rod, springs are arranged at the joint of the main pliers and the polished rod, the main pliers are pressed by the pressing plate and the fixing piece, damage to the drilling tool in the process of screwing and moving downwards the main pliers is avoided, and the vertical displacement distance generated between the third driving mechanism and the screw pitch of screwing in the process of screwing the main pliers is compensated.
(5) The three clamping head parts of the back-up wrench are designed to hold the drill rod when the clamping arms clamp the drill rod, so that the problem of centering the check valve of the drilling tool and the drill rod is solved.
(6) The design of the second sliding block in the invention can enable the back-up clamp to move upwards to clamp the check valve, thereby providing assistance for the anti-rotation of the main clamp, meanwhile, the top ring is adopted to push the rack structure, and no pipeline connection exists between the main clamp conversion joint and the check valve of the drilling tool, so that the problem of separation of the device and the check valve of the drilling tool is solved.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a first side schematic view of the binding clip apparatus of the present invention;
fig. 2 shows a schematic perspective view of the binding clip device of the present invention;
fig. 3 shows a second side schematic view of the binding clip apparatus of the present invention;
Fig. 4 shows a third side structural view of the binding clip device of the present invention.
The main reference numerals illustrate:
1-a first slider; 2-a second slider; 3-a first drive mechanism; 4-a second drive mechanism; 5-main pincers; 6-back-up tongs; 7-a connection shell; 8-a motor; 9-a gear assembly; 10-converting joint; 11-a first transmission gear; 12-a second transmission gear; 13-a third drive mechanism; 14-a closing mechanism; 15-a hydraulic cylinder; 16-a compression bar; 17-pressing down; 18-a slideway; 19-a cross bar; 20-vertical rods; 21-top ring; 22-a third transmission gear; 23-racks; 24-tap valve shaft; 25-a fastener; 26-mounting plate; 27-a bottom plate; 28-a first clamping assembly; 29-a second clamping assembly; 30-a first telescopic mechanism; 31-a first clamping arm; 32-a second telescopic mechanism; 33-a second clamping arm; 34-a first clamping head; 35-a second clamping head; 36-a third clamping head; 37-a connection mechanism; 38-polish rod; 39-a first spring; 40-a second spring; 41-connecting plates; 42-pressing plate; 43-fixing piece; 44 a connecting rod; 45-connecting rod;
A-drill check valve.
Detailed Description
The following description of the embodiments of the present invention will be made more complete and clear with reference to the accompanying drawings, wherein it is to be understood that the embodiments described are merely some, but not all, of the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention. What is not described in detail in the embodiments of the present invention belongs to the prior art known to those skilled in the art.
It should be noted that the terms "first," "second," and the like are merely used for convenience of description and for convenience of distinction and are not to be construed as indicating or implying relative importance. "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. are merely for convenience of description and constitute relative orientations or positional relationships and do not indicate or imply that the components referred to must have that particular orientation or position.
Fig. 1 shows a schematic view of a first side structure of the binding clip device of the present invention, with broken lines in fig. 1 indicating that the relevant components are not fully shown. Fig. 2 shows a schematic perspective view of the binding clip device of the present invention, with broken lines in fig. 2 indicating that the relevant components are not fully shown. Fig. 3 shows a second side schematic view of the binding clip device of the present invention. Fig. 4 shows a third side structural view of the binding clip device of the present invention.
Example embodiment 1
The present exemplary embodiment provides a clip device for automatic preemptive drilling tool check valve. This is described below in connection with fig. 1 to 4.
As shown in fig. 1, the binding clip device may include a first slider 1, a second slider 2, a first driving mechanism 3, a second driving mechanism 4, a main clip 5, and a back clip 6. Wherein the first slider 1 is positioned above the second slider 2; the first driving mechanism 3 can drive the first sliding block 1 to slide up and down; the second driving mechanism 4 can drive the second sliding block 2 to slide up and down; the main clamp 5 is connected with the first sliding block 1 and has a turnbuckle function, and the main clamp 5 can also be connected with the check valve A of the drilling tool; the back-up tong 6 is connected to the second slide 2 and is located below the main tong 5, the back-up tong 6 being capable of holding a drill or a drill check valve a.
In this embodiment, as shown in fig. 1, the binding clip device may further include a connection housing 7, and the first slider 1 and the second slider 2 are both slidably connected to the connection housing 7. The first slider 1 and the second slider 2 can move up and down with respect to the connection housing 7, and the connection method may be dovetail groove guide connection or T-groove guide connection, but the present invention is not limited to this, and other methods capable of realizing sliding connection are also possible.
In an embodiment, as shown in fig. 3, the first drive mechanism 3 and the second drive mechanism 4 may both be hydraulic drive devices. The hydraulic cylinder or the hydraulic rod of the first driving mechanism 3 can be fixed on the connecting shell 7, and the other end of the hydraulic cylinder or the hydraulic rod is fixedly connected with the first sliding block 1; the hydraulic cylinder or the hydraulic rod of the second driving mechanism 4 can be fixed on the connecting shell 7, and the other end of the hydraulic cylinder or the hydraulic rod is fixedly connected with the second sliding block 2.
In this embodiment, the main clamp 5 may include a motor 8, a gear assembly 9 and an adapter 10 as shown in fig. 2. Wherein, the motor 8 can realize speed reduction and torque increase through the gear transmission assembly 9; the adapter 10 can rotate along the central axis of the adapter 10 under the drive of the gear transmission assembly 9, and the adapter 10 can be connected with the check valve A of the drilling tool.
Further, as shown in fig. 2, the gear transmission assembly 9 may include a first transmission gear 11 and a second transmission gear 12 that are meshed, and a radial dimension of the first transmission gear 11 is smaller than a radial dimension of the second transmission gear 12. Wherein, the motor 8 can drive the first transmission gear 11 to rotate along the central axis of the motor; the adapter 10 is located below the second transfer gear 12 and is connected to the middle of the second transfer gear 12.
In this embodiment, the binding clip apparatus may further comprise a third drive mechanism 13 as shown in fig. 4 and a closing mechanism 14 as shown in fig. 2. Wherein the third driving mechanism 13 can drive the closing mechanism 14 to complete the closing operation of the check valve A of the drilling tool.
Further, as shown in fig. 4, the third driving mechanism 13 may include a hydraulic cylinder 15, a pressing rod 16, and a hold-down piece 17. Wherein the hydraulic cylinder 15 can drive the pressing rod 16 to move downwards or upwards, and in the case that the pressing rod 16 moves downwards, the hydraulic cylinder can drive the pressing piece 17 to move downwards; the hold down 17, during its downward movement, can actuate the closing mechanism 14 to complete the closing of the tool check valve a.
In this embodiment, as shown in fig. 2, the main clamp 5 has a adaptor 10 for connecting with a check valve a of a drilling tool, and the adaptor 10 is provided with a slide 18 extending transversely and longitudinally, and the slide 18 forms a channel for moving up and down. As shown in fig. 4, the hold-down member 17 may include a cross bar 19, a vertical bar 20, and a top ring 21 connected in sequence from top to bottom. Wherein the cross bar 19 passes through the slideway 18 on the conversion joint and can move up and down along the slideway 18; the vertical rod 20 can drive the top ring 21 to move up and down under the action of the cross rod 19; the top ring 21 is sleeved on the check valve a of the drilling tool, and can complete the closing operation of the check valve a of the drilling tool in the downward moving process.
In this embodiment, as shown in FIG. 2, the closure mechanism 14 may be mounted on the drill check valve A and may include a third transfer gear 22, a rack 23, and a tap valve shaft 24. Wherein the rack 23 and the third transmission gear 22 are both longitudinally arranged, and both constitute a gear pair; the cock valve shaft 24 vertically passes through the third transmission gear 22 and is fixedly connected, and can rotate along the central axis of the cock valve shaft under the drive of the third transmission gear 22. When the hydraulic valve is specifically applied, the compression bar 16 moves downwards under the action of the hydraulic cylinder 15, the pushing piece 17 is pushed to push the rack 23 downwards, and then the rack 23 drives the third transmission gear 22 and the cock valve shaft 24 to integrally rotate, and one end of the cock valve shaft 24 is fixedly connected with the ball valve of the drilling tool check valve A, namely, the ball valve of the drilling tool check valve A is driven to rotate, so that the work of closing the drilling tool check valve A is completed.
Further, as shown in fig. 2, the closure mechanism 14 may also include a catch 25 and a mounting plate 26. Wherein, the buckle piece 25 can be fixed on the check valve A of the drilling tool, and the third transmission gear 22 is rotatably arranged on the buckle piece 25; the mounting plate 26 is longitudinally arranged and connected to the clasp 25, and the rack 23 is connected to the mounting plate 26.
In this embodiment, the back-up tong 6 may comprise a base plate 27, a first clamping assembly 28 and a second clamping assembly 29 as shown in fig. 2. Wherein the bottom plate 27 is transversely arranged and fixedly connected with the second sliding block 2; the first clamping assembly 28 and the second clamping assembly 29 are disposed opposite. The first clamping assembly 28 may include a first telescoping mechanism 30 and a first clamping arm 31, both disposed transversely and hinged; the first telescopic mechanism 30 can also be fixed on the upper plate surface of the bottom plate 27; the first clamping arm 31 is also rotatably connected to the base plate 27. The second clamping assembly 29 may include a second telescopic mechanism 32 and a second clamping arm 33, both disposed transversely and hinged; the second telescopic mechanism 32 can also be fixed on the upper plate surface of the bottom plate 27; the second clamping arm 33 is also rotatably connected to the base plate 27.
Further, as shown in fig. 2, the first clamping assembly 28 may further include a first clamping head 34 disposed at an end of the first clamping arm 31; the second clamping assembly 29 may further include a second clamping head 35 disposed at an end of the second clamping arm 33. A third gripping head 36 may also be mounted on the base plate 27.
In this embodiment, as shown in fig. 1 and 3, the binding clip device may further include a connection mechanism 37 for connecting the main clip 5 and the first slider 1, and the connection mechanism 37 may include: a plurality of polished rods 38, a plurality of first springs 39, a plurality of second springs 40, a connecting plate 41, a pressing plate 42 and a fixing piece 43. Wherein the polish rod 38 is vertically arranged on the first slide block 1; through holes which are the same in number and correspond to each other in one-to-one mode are formed in the connecting plate 41 and the pressing plate 42, and the aperture of each through hole is not smaller than the rod diameter of the corresponding polish rod 38; the first springs 39, the connecting plates 41, the second springs 40 and the pressing plates 42 are sequentially arranged from bottom to top and sleeved on the polished rods 38, and the number of the first springs 39 sleeved on each polished rod 38 is at most 1, and the number of the second springs 40 sleeved on each polished rod 38 is at most 1; the fixing member 43 can fix the pressing plate 42 to the polish rod 38.
Example embodiment 2
The present exemplary embodiment provides a method of preempting a drill check valve. This is described below in connection with fig. 1 to 4.
The method may be implemented with a clamp head device based on the automatic preemptive drilling tool check valve of example embodiment 1 described above.
In this embodiment, the method may include the steps of:
The check valve of the automatic grabbing drilling tool is moved to the drilling tool by a clamp head device, and the first telescopic mechanism 30 and the second telescopic mechanism 32 of the back clamp 6 extend to drive the first clamping arm 31 and the second clamping arm 33 to clamp the drilling tool; the third clamping head 36 can assist the check valve a of the drilling tool carried by the main tong 5 to perform centering action with the drilling tool.
The first driving mechanism 3 drives the first sliding block 1 to move downwards, and meanwhile, the motor 8 drives the drilling tool check valve A to rotate through the gear transmission assembly 9, so that the drilling tool check valve A is installed on a drilling tool.
The third driving mechanism 13 drives the compression bar 16 to move downwards through the hydraulic cylinder 15, the push cross bar 19 drives the top ring 21 to move downwards, the top ring 21 pushes the rack 23 to move downwards, and accordingly the third transmission gear 22 is driven to rotate, and the check valve A of the drilling tool is closed.
In this embodiment, the method may further include the steps of:
The first telescopic mechanism 30 and the second telescopic mechanism 32 of the back-up wrench 6 retract to drive the first clamping arm 31 and the second clamping arm 33 to loosen the drilling tool, and the second driving mechanism 4 drives the second sliding block 2 to move upwards to the check valve A of the drilling tool to stop; the first telescopic mechanism 30 and the second telescopic mechanism 32 extend out to drive the first clamping arm 31 and the second clamping arm 33 to clamp the check valve A of the drilling tool.
The first driving mechanism 3 drives the first slider 1 to move upwards, and simultaneously the motor 8 performs reverse screwing through the gear transmission assembly 9 to separate the check valve A of the drilling tool from the drilling tool.
Example embodiment 3
The present exemplary embodiment provides a clip device for automatic preemptive drilling tool check valve. The automatic quick connect tool check valve clip device of the present exemplary embodiment is further defined on the clip device of exemplary embodiment 1, as described below with reference to fig. 1 to 4.
In the present embodiment, the first slider 1 is connected to the connection housing 7 through a dovetail rail so as to be smoothly movable in the vertical direction. When the device is specifically applied, the dovetail groove guide rail sliding block is adopted, so that the device moves up and down more stably, and the device has the advantages of small friction force and small abrasion. As shown in fig. 3, the first driving mechanism 3 is a telescopic hydraulic cylinder, and the hydraulic cylinder can be fixed with the first slider 1 through a connecting rod 44, and the hydraulic rod is fixed with the connecting shell 7.
In this embodiment, as shown in fig. 1 to 3, five polished rods 38 are adopted for limiting and fixing a connecting plate 41, five first springs 39 and five second springs 40 are respectively installed on the upper surface and the lower surface of the connecting plate 41, threads are formed on the upper portion of the polished rods 38, a fixing piece 43 is a nut, and the polished rods 38 are screwed on the nuts to fix a pressing plate 42, so that the connecting plate 41 is pressed, and the main pliers 5 are pressed.
In this embodiment, as shown in fig. 2, the motor 8 is a hydraulic motor, the motor 8 is connected with the first transmission gear 11 through a shaft, the first transmission gear 11 and the second transmission gear 12 form a gear pair, and the middle part of the second transmission gear 12 is connected with the adapter 10 through a spline.
In this embodiment, as shown in fig. 4, the third driving mechanism 13 adopts a telescopic hydraulic cylinder, the lower end of the third driving mechanism 13 is fixed on the upper cover plate of the main pliers 5, and the upper end of the third driving mechanism is fixed with one end of the connecting rod 45 through a bolt; while the other end of the connecting rod 45 is connected with the upper end of the compression bar 16 through a bolt; the lower end of the compression bar 16 passes through the center of the adapter 10.
In this embodiment, as shown in fig. 2, the slideway 18 may be rectangular in shape. As shown in fig. 4, the cross bar 19 is fixedly connected with the top ring 21 through the vertical bar 20, and the cross bar 19 passes through the adapter 10 through the slideway 18 as shown in fig. 2.
In this embodiment, as shown in fig. 2, the cock valve shaft 24 is fixedly connected to the third transmission gear 22 through a flat key, and the third transmission gear 22 and the rack 23 constitute a gear pair.
In this embodiment, the clasp 25 includes a front collar and a rear collar that are bolted to the periphery of the drill check valve a and are secured to the mounting plate 26.
In this embodiment, the second slider 2 is connected to the connection housing 7 through a dovetail rail so as to be smoothly movable in the vertical direction. When the device is specifically applied, the dovetail groove guide rail sliding block is adopted, so that the device moves up and down more stably, and the device has the advantages of small friction force and small abrasion. As shown in fig. 3, the second driving mechanism 4 is a telescopic hydraulic cylinder, the hydraulic cylinder is fixed to the second slider 2 through a connecting rod 44, and the hydraulic rod is fixed to the connecting housing 7.
In the present embodiment, as shown in fig. 2, the first telescopic mechanism 30 and the second telescopic mechanism 32 are telescopic hydraulic cylinders, and the first telescopic mechanism 30 and the second telescopic mechanism 32 are both fixed to the base plate 27 and simultaneously fixed to the second slider 2. The first clamping head 34, the second clamping head 35 and the third clamping head 36 all employ jaws. The third clamping head 36 is connected with the bottom plate 27 through a pin shaft; the first clamping head 34 is connected with the first clamping arm 31 through a pin shaft; the second clamping head 35 is connected to the second clamping arm 33 by a pin. The middle parts of the first clamping arm 31 and the second clamping arm 33 are connected with the bottom plate 27 through a pin shaft.
In the embodiment, the main pincers 5 are connected with the first sliding block 1, and the first sliding block 1 and the first driving mechanism 3 can realize the up-and-down movement of the main pincers 5 through a dovetail groove on the connecting shell 7; the back tongs 6 are connected with the second sliding block 2, and the second sliding block 2 and the second driving mechanism 4 can realize the up-and-down movement of the back tongs 6 through the dovetail groove on the connecting shell 7. The main pincers 5 and the back pincers 6 adopt a hydraulic cylinder-guide rail sliding block mode to move up and down, the up and down movement is more stable, and the relative movement mode of the guide rail sliding block is adopted, so that the hydraulic cylinder-guide rail sliding block type combined clamp has the advantages of small friction force and small abrasion. The main pliers 5 have the functions of carrying the check valve A of the drilling tool and the turnbuckle, and the back pliers 6 have the functions of clamping, centering and auxiliary shackle. The clamp head device for the automatic preemptive drilling tool check valve adopts a mode of matching a main clamp 5 and a back clamp 6, thereby realizing the function of preemptively installing the drilling tool check valve A safely and reliably.
The foregoing 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 easily conceivable by those skilled in the art within the scope of the present invention should fall within the scope of the present invention.
Claims (11)
1. The clamp head device for the check valve of the automatic grabbing drilling tool is characterized by comprising a first sliding block, a second sliding block, a first driving mechanism, a second driving mechanism, a main clamp and a back clamp; wherein,
The first sliding block is positioned above the second sliding block;
The first driving mechanism can drive the first sliding block to slide up and down;
the second driving mechanism can drive the second sliding block to slide up and down;
the main clamp is connected with the first sliding block and has a turnbuckle function, and the main clamp can also be connected with a check valve of the drilling tool;
the back-up tong is connected with the second sliding block and is positioned below the main tong, and the back-up tong can clamp the drilling tool or the check valve of the drilling tool;
The clamp head device also comprises a third driving mechanism and a closing mechanism; the third driving mechanism can drive the closing mechanism to finish closing operation of the check valve of the drilling tool;
the third driving mechanism comprises a hydraulic cylinder, a pressing rod and a pressing piece; the hydraulic cylinder can drive the pressing rod to move downwards or upwards, and under the condition that the pressing rod moves downwards, the hydraulic cylinder can drive the pressing piece to move downwards; the closing mechanism can be driven to finish the closing operation of the check valve of the drilling tool in the downward moving process of the pressing piece;
The main clamp is provided with an adapter for connecting a check valve of the drilling tool, a slide rail which is transversely penetrated and longitudinally extends is arranged on the adapter, and the slide rail forms a channel for moving up and down;
The lower pressing piece comprises a cross rod, a vertical rod and a top ring which are sequentially connected from top to bottom; the cross rod passes through the slideway on the conversion joint and can move up and down along the slideway; the vertical rod can drive the top ring to move up and down under the action of the cross rod; the top ring is sleeved on the check valve of the drilling tool, and can finish closing operation of the check valve of the drilling tool in the downward moving process;
The closing mechanism is arranged on the check valve of the drilling tool and comprises a third transmission gear, a rack and a cock valve shaft, wherein the rack and the third transmission gear are longitudinally arranged and form a gear pair; the valve shaft of the cock vertically passes through the third transmission gear and is fixedly connected, and the valve shaft of the cock can rotate along the central axis of the valve shaft of the cock under the drive of the third transmission gear.
2. The head device for automatically engaging a drill check valve of claim 1, further comprising a connection housing;
The first sliding block and the second sliding block are both in sliding connection with the connecting shell.
3. The automatic drill bit locking head device for check valves according to claim 2, wherein the first and second driving mechanisms are both hydraulic driving devices; wherein,
The hydraulic cylinder or the hydraulic rod of the first driving mechanism is fixed on the connecting shell;
The hydraulic cylinder or the hydraulic rod of the second driving mechanism is fixed on the connecting shell.
4. The automatic drill pipe nipple device for a check valve according to claim 1, wherein the main clamp comprises a motor, a gear assembly and an adapter; wherein,
The motor can realize speed reduction and torque increase through the gear transmission assembly;
The adapter can rotate along the central axis of the adapter under the drive of the gear transmission component, and the adapter can be connected with the check valve of the drilling tool.
5. The automatic drill bit check valve clip assembly of claim 4, wherein the gear assembly includes a first drive gear and a second drive gear meshed with each other, the first drive gear having a radial dimension that is less than a radial dimension of the second drive gear; wherein,
The motor can drive the first transmission gear to rotate along the central axis of the motor;
the adapter is positioned below the second transmission gear and connected with the middle part of the second transmission gear.
6. The automatic drill bit check valve clip apparatus of claim 1, wherein the closing mechanism further comprises a catch and a mounting plate; wherein,
The clamping piece can be fixed on the check valve of the drilling tool, and the third transmission gear is rotatably arranged on the clamping piece;
the mounting plate is longitudinally arranged and connected to the clamping piece, and the rack is connected to the mounting plate.
7. The automatic drill bit preemption of a clamp head device for a check valve of claim 1, wherein the back-up clamp comprises a base plate, a first clamping assembly, and a second clamping assembly; wherein,
The bottom plate is transversely arranged and fixedly connected with the second sliding block;
The first clamping component and the second clamping component are oppositely arranged;
The first clamping assembly comprises a first telescopic mechanism and a first clamping arm which are transversely arranged and hinged; the first telescopic mechanism is also fixed on the upper plate surface of the bottom plate; the first clamping arm is also in rotary connection with the bottom plate;
the second clamping assembly comprises a second telescopic mechanism and a second clamping arm which are transversely arranged and hinged; the second telescopic mechanism is also fixed on the upper plate surface of the bottom plate; the second clamping arm is also in rotary connection with the bottom plate.
8. The automatic drill pipe grabbing clamp head device for check valves of claim 7, wherein the first clamping assembly further comprises a first clamping head arranged at the end of the first clamping arm; the second clamping assembly further includes a second clamping head disposed at an end of the second clamping arm.
9. The automatic drill pipe grabbing clamp head device for check valves according to claim 8, wherein a third clamping head is further installed on the bottom plate.
10. The automatic drill bit locking device for check valves of claim 1, further comprising a connection mechanism for connecting the main clamp and the first slider, the connection mechanism comprising: the device comprises a plurality of polished rods, a plurality of first springs, a plurality of second springs, a connecting plate, a pressing plate and a fixing piece; wherein,
The polished rod is vertically arranged on the first sliding block;
Through holes which have the same number of polished rods and are in one-to-one correspondence are formed in the connecting plate and the pressing plate, and the aperture of each through hole is not smaller than the rod diameter of the polished rod;
The first springs, the connecting plates, the second springs and the pressing plates are sequentially arranged from bottom to top and sleeved on the polished rods, the number of the first springs sleeved on each polished rod is at most 1, and the number of the second springs sleeved on each polished rod is at most 1;
the mounting can fix the clamp plate on the polished rod.
11. A method of preemptively engaging a drill check valve, characterized in that the method is implemented with a clamp head device on the basis of an automatic preemptive engagement of a drill check valve according to any of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210645389.XA CN115045626B (en) | 2022-06-08 | 2022-06-08 | Clamp head device and method for automatic preemptive connection of check valve of drilling tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210645389.XA CN115045626B (en) | 2022-06-08 | 2022-06-08 | Clamp head device and method for automatic preemptive connection of check valve of drilling tool |
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| CN115045626A CN115045626A (en) | 2022-09-13 |
| CN115045626B true CN115045626B (en) | 2024-04-30 |
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| CN202210645389.XA Active CN115045626B (en) | 2022-06-08 | 2022-06-08 | Clamp head device and method for automatic preemptive connection of check valve of drilling tool |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114622849A (en) * | 2021-12-14 | 2022-06-14 | 中国石油天然气集团有限公司 | Check valve device for automatic drilling tool and using method thereof |
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