CN110130831B - Top drive casing running device - Google Patents
Top drive casing running device Download PDFInfo
- Publication number
- CN110130831B CN110130831B CN201910549631.1A CN201910549631A CN110130831B CN 110130831 B CN110130831 B CN 110130831B CN 201910549631 A CN201910549631 A CN 201910549631A CN 110130831 B CN110130831 B CN 110130831B
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- China
- Prior art keywords
- mandrel
- top drive
- rotation
- elevator
- slip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 19
- 238000005553 drilling Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/10—Slips; Spiders ; Catching devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
Abstract
The invention provides a top drive casing running device which comprises a transmission system assembly, a top drive rotation preventing mechanism assembly and a slip rotation preventing mechanism assembly, wherein the transmission system assembly comprises a mandrel, a sun wheel, a planet wheel, a screw rod and a slip, the mandrel is connected with the mandrel of the top drive through a conical thread, the sun wheel is connected with a mandrel key, the planet wheel is meshed with the sun wheel for transmission, the screw rod and the planet wheel form a screw rod nut pair, and the slip is matched with the mandrel through a wedge; the top drive anti-rotation mechanism assembly comprises a linear motor, an anti-rotation gear and an anti-rotation wheel disc, a locking gear meshed with the anti-rotation gear is sleeved on an output shaft of the linear motor, the anti-rotation wheel disc is clamped with the anti-rotation gear, and a planet wheel is arranged on the anti-rotation wheel disc; the slip anti-rotation mechanism assembly comprises a half clamp and a double-row tapered roller bearing, wherein an inner ring of the double-row tapered roller bearing is connected with a screw rod, an outer ring of the double-row tapered roller bearing is connected with the half clamp, and the lower end of the half clamp is connected with the slip through a shifting fork. The top drive casing running device provided by the invention is not influenced by environmental factors such as oil temperature and the like, and has stronger stability.
Description
Technical Field
The invention belongs to the technical field of oil and gas exploitation equipment, and particularly relates to a special device for casing running operation of a top drive drilling system.
Background
The top drive drilling system (top drive for short) is an oil drilling machine with very high automation degree, and compared with a conventional drilling machine, the top drive drilling system can realize the purposes of circulating mud at any time and drilling and turning a drill string at any time, and greatly improves the safety of drilling. At present, petroleum drilling companies at home and abroad are all provided with different types of top drives. The top drive casing running device is a special device specially configured for top drive casing running operation. If the sleeve is required to be reversed in the sleeve-setting process, the slip can be loosened by the traditional sleeve-setting device, and potential safety hazards exist.
Disclosure of Invention
In view of the above problems, the invention aims to provide a top drive casing running device so as to solve the problem that the slips are easy to loosen to cause potential safety hazards when the existing top drive casing running device turns over a casing.
The invention provides a top drive casing running device, which comprises: the driving system assembly, the top drive anti-rotation mechanism assembly and the slip anti-rotation mechanism assembly; the transmission system assembly comprises a mandrel, a sun gear, a planetary gear, a screw rod, a shifting fork and slips, wherein the mandrel of the transmission system assembly is in threaded connection with the top-drive mandrel through a cone, the sun gear is in key connection with the mandrel, the planetary gear is in meshed transmission with the sun gear, the screw rod and the planetary gear form a screw rod nut pair, and the slips are in wedge fit with the mandrel; the top drive anti-rotation mechanism assembly comprises a linear motor, a locking gear, an anti-rotation gear and an anti-rotation wheel disc, wherein the locking gear is sleeved on an output shaft of the linear motor and meshed with the anti-rotation gear, the anti-rotation wheel disc is clamped with the anti-rotation gear, and the planet wheel is arranged on the anti-rotation wheel disc; the slip anti-rotation mechanism assembly comprises two half clamps and a double-row tapered roller bearing, wherein the inner ring of the double-row tapered roller bearing is connected with a screw rod, the outer ring of the double-row tapered roller bearing is connected with the two half clamps, and the lower ends of the two half clamps are connected with the slips through shifting fork.
In addition, the top drive sleeve-down device also comprises an upper sleeve and a lower sleeve, wherein the upper sleeve is arranged on the mandrel through an end cover, a first single-row tapered roller bearing and a second single-row tapered roller bearing are respectively arranged between the upper end and the lower end of the upper sleeve and the mandrel, and the lower sleeve is connected with the upper sleeve through a sleeve connecting piece.
In addition, the top drive casing running device also comprises an elevator assembly, wherein the elevator assembly comprises two elevator seats, two elevator arms, two elevator arm connecting rods, two hoisting rings of two hoisting ring connecting pieces and an elevator, the two elevator seats are fixedly connected with the upper sleeve respectively, the upper ends of the two elevator arms are hinged with the two elevator seats respectively, the lower ends of the two elevator arms are hinged with one ends of the two hoisting ring connecting pieces through the two elevator arm connecting rods, the other ends of the two hoisting ring connecting pieces are hinged with one ends of the two hoisting rings, and the other ends of the two hoisting rings are connected with the elevator.
Furthermore, the preferable structure is that a guide head is connected with the lower end of the mandrel in a threaded way, and a sealing ring and a sealing sleeve are arranged between the guide head and the mandrel.
In addition, the preferred structure is that the slips are formed by six groups of slip teeth which are uniformly distributed along the circumference of the mandrel, the six groups of slip teeth are in a step inclined plane shape, and inclined plane grooves matched with the six groups of slip teeth are formed in the mandrel.
In addition, the lower end surfaces of the two half-clips are provided with six grooved spokes, and the six spokes are respectively matched with the tail parts of the six groups of slip teeth.
Compared with the prior art, the invention can obtain the following technical effects:
1. compared with the conventional hydraulic top drive casing running device, the device is not influenced by environmental factors such as oil temperature and the like, and meanwhile, the stability of the execution of the purely mechanical structure is higher.
2. According to the invention, the linear motor drives the locking gear to unlock the anti-rotation wheel disc, so that the rotation motion of the mandrel is converted into the rotation of the sun gear and the anti-rotation wheel disc, at the moment, the planetary gear does not rotate along with the rotation of the anti-rotation wheel disc, the screw rod cannot do linear motion, the screw rod cannot apply downward thrust to the slips, and the slips are prevented from loosening when the mandrel is reversed.
3. The invention adopts the double-row tapered roller bearing and the half clamp to transition the dynamic connection between the screw rod and the slips, thereby realizing the transmission of force and motion.
Drawings
Other objects and results of the present invention will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the invention. In the drawings:
FIG. 1 is a front view of a top drive casing running assembly according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a partial enlarged view at B in FIG. 1;
fig. 4 is a top view of fig. 1.
Wherein reference numerals include: mandrel 101, end cap 102, upper sleeve 103, lower sleeve 104, sleeve connection 105, sun gear 106, planet wheel 107, lead screw 108, shift fork 109, slip 110, guide head 111, seal ring 112, seal sleeve 113, first single row tapered roller bearing 114, second single row tapered roller bearing 115, spline 116, linear motor 201, locking gear 202, anti-rotation gear 203, anti-rotation wheel disc 204, third single row tapered roller bearing 205, angular ball bearing 206, half card 301, double row tapered roller bearing 302, elevator seat 401, elevator arm 402, elevator arm connection 403, hoist ring connection 404, hoist ring 405, elevator 406, elevator connection bolt 407, top drive 5, and sleeve 6.
The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 4, a top drive casing running device provided in an embodiment of the present invention includes: the device comprises a transmission system assembly, a top drive anti-rotation mechanism assembly, a slip anti-rotation mechanism assembly and an elevator assembly; wherein, the transmission system assembly comprises a mandrel 101, an end cover 102, an upper sleeve 103, a lower sleeve 104, a sleeve connecting piece 105, a sun wheel 106, a planet wheel 107, a screw rod 108, a shifting fork 109 and a slip 110, wherein, the mandrel 101 is connected with the mandrel of the top drive 5 through a conical thread and transmits torque through the conical thread, the mandrel is communicated with the water hole of the top drive 5, the power of the transmission system assembly comes from the top drive 5, the mandrel 101 is driven to rotate positively and negatively through the top drive 5, the upper sleeve 103 is arranged on the mandrel 101 through the end cover 102, a first single row tapered roller bearing 114 and a second single row tapered roller bearing 115 are respectively arranged between the upper end and the lower end of the upper sleeve 103 and the mandrel 101, the lower sleeve 104 is connected with the upper sleeve 103 through the sleeve connecting piece 105, the sleeve connecting piece 105 comprises a sleeve connecting bolt, a spring washer and a sleeve connecting nut, the sun wheel 106 is connected with the mandrel 101 through a spline 116, the sun gear 106 is provided with an internal spline, the mandrel 101 is provided with an external spline, the sun gear 106 is connected with the mandrel 101 through a spline to transmit torque, the planetary wheel 107 is meshed with the sun gear 106 to drive, the screw rod 108 and an inner hole of the planetary wheel 107 form a screw-nut pair, the rotary motion of the screw rod 108 is converted into linear motion, the slips 110 are arranged on the mandrel 101 through a shifting fork 109, the slips 110 are matched with the mandrel 101 through inclined wedges, the slips 110 consist of six groups of slip teeth, the slips teeth are shaped as stepped inclined planes, inclined plane grooves matched with the six groups of slip teeth are formed in the mandrel 101, the linear motion of the screw rod 108 can exert downward thrust, the thrust is transmitted to the slips 110 through the shifting fork 109, the slips 110 realize radial expansion and expansion under the action of the inclined plane grooves of the mandrel 101, the slips 110 and the mandrel 101 realize the expansion and contraction generated by the axial relative motion, thereby realizing the clutch with the sleeve 6.
Because the power of the top drive casing running device is provided by the top drive 5, and the contraction and expansion of the slip mechanism are realized through the positive and negative rotation of the top drive 5, after the top drive casing running device clamps the casing 6, the sun wheel 106 and the planet wheel 107 are in an engaged state, and the screw-nut pair is also in an engaged state, if the top drive 5 is continuously rotated, the force is continuously applied to the top drive casing running device, so that equipment is very easy to damage; meanwhile, if the sleeve 6 needs to be reversed in the process of casing 6, the sleeve 6 is loosened by the reversing sleeve 6 under the condition that the top drive reversing mechanism of the top drive reversing prevention mechanism is not added, so that the potential safety hazard exists. The top drive reversing mechanism of the top drive reversing mechanism has the effect that no matter the top drive 5 rotates forward or reversely, the slips 110 can not loosen the sleeve 6, and the top drive 5 is prevented from loosening the sleeve 6 during reverse rotation.
The top drive anti-rotation mechanism assembly comprises a linear motor 201, a locking gear 202, an anti-rotation gear 203 and an anti-rotation wheel disc 204, wherein the linear motor 201 is installed on a lower sleeve 104, the locking gear 202 is sleeved on an output shaft of the linear motor 201, the locking gear 202 is driven to stretch and retract through stretching motion of the output shaft of the linear motor 201, the locking gear is meshed with the anti-rotation gear 203 or separated from the anti-rotation gear 203, the anti-rotation wheel disc 204 is clamped with the anti-rotation gear 203, a third single-row tapered roller bearing 205 is assembled between the anti-rotation wheel disc 204 and the lower sleeve 104, an angular contact ball bearing 206 is assembled between the anti-rotation wheel disc 204 and the mandrel 101, and the planet wheel 107 is installed on the anti-rotation wheel disc 204.
The working principle of the top drive anti-rotation mechanism assembly is as follows: when the linear motor 201 drives the locking gear 202 to extend out and mesh with the anti-rotation gear 203, the anti-rotation gear 203 and the anti-rotation wheel disc 204 are kept static, the planet wheel 107 rotates around the axis of the wire rod 108 under the transmission of the sun wheel 106, the rotation motion of the screw rod is converted into linear motion, the linear motion moves downwards, and the slip 110 is pushed to open and clamp the sleeve 6; when the linear motor 201 drives the locking gear 202 to retract, the locking gear 202 is separated from the anti-rotation gear 203, the anti-rotation gear 203 and the anti-rotation wheel disc 204 rotate, the planet wheel 107 rotates around the sun wheel 106 in a revolution way and does not rotate, the screw rod 108 cannot do linear motion, downward thrust is not exerted, and when the top drive 5 drives the mandrel 101 to rotate reversely, the slips 110 cannot be driven to retract to loosen the sleeve 6.
A guide head 111 is screwed at the lower end of the mandrel 101, and a sealing ring 112 and a sealing sleeve 113 are arranged between the guide head 11 and the mandrel 101.
The top drive 5 is provided with a torque sensor for detecting a torque value in real time, when the torque value reaches a fastening torque value, the signal is fed back to the linear motor 201, so that the linear motor 202 is retracted, and further the locking gear 202 clamping the anti-rotation gear 203 is loosened, and the situation that equipment is damaged due to the fact that torque is not continuously applied after the top drive casing running device is fastened is ensured.
Since the slips 110 are installed in the mandrel 101, the mandrel 101 will also rotate at the same speed along with the mandrel 101 during the rotation of the top drive 5, and since the slips 110 are connected with the screw rod 108 on the upper part of the mandrel to transmit the movement of the screw rod 108, the screw rod 108 for transmitting the movement is not rotated during the process of clamping the sleeve 6 by the slips 110, but the slips 110 and the mandrel 101 do rotation at this time, so that a dynamic connection is needed between the slips 110 and the screw rod 108 to transfer the movement and force, and the solution of the problem of the invention is that the slip anti-rotation mechanism is used for bearing the dynamic connection
This dynamic coupling is carried out by two back-to-back axially loaded double row tapered roller bearings.
The slip anti-rotation mechanism assembly comprises two half clamps 301 and a double-row tapered roller bearing 302, the double-row tapered roller bearing is two back-to-back needle bearings and is used for bearing dynamic connection, an inner ring of the double-row tapered roller bearing 302 is connected with a screw rod 108, an outer ring of the double-row tapered roller bearing 302 is connected with the two half clamps 301, lower ends of the two half clamps 301 are connected with slips 110 through a shifting fork 109, lower end faces of the two half clamps 301 are respectively provided with three grooved spokes, and six spokes are respectively matched with tail parts of six groups of slips 110.
The slip anti-rotation mechanism assembly accommodates the outward expansion movement of the slips 110 while transmitting the linear movement of the lead screw 108. During the process of clamping the sleeve 6, the slips 110 do not rotate, the screw rod 108 is connected with the inner ring of the double-row tapered roller bearing 302, so that the screw rod 108 does not rotate together with the inner ring of the double-row tapered roller bearing 302, the slips 110 do rotate together with the mandrel 101 and the two half clamps 301, and the two half clamps 301 are connected with the outer ring of the double-row tapered roller bearing 302, so that the rotating motion is adapted to the outer ring of the double-row tapered roller bearing 302.
When the slip anti-rotation mechanism assembly transmits the thrust of the screw rod 108, the screw rod 108 transmits the thrust to the inner ring of the double-row tapered roller bearing 302, the inner ring of the double-row tapered roller bearing 302 transmits the force to the outer ring of the double-row tapered roller bearing 302, the outer ring of the double-row tapered roller bearing 302 transmits the force and the motion to the two half clamps 301, and the two half clamps 301 are transmitted to the slips 110 through the shifting fork 109, so that the expansion and the contraction of the slips are realized.
The elevator assembly is a special device for hoisting the sleeve 6, and specifically comprises two elevator bases 401, two elevator arms 402, two elevator arm connecting rods 403, two hoisting ring connecting pieces 404, two hoisting rings 405 and one elevator 406, wherein the two elevator bases 401 are fixedly connected with the upper sleeve 103 through elevator connecting bolts 407 respectively, the upper ends of the two elevator arms 402 are hinged with the two elevator bases 401 respectively, the lower ends of the two elevator arms 402 are hinged with one ends of the two hoisting ring connecting pieces 404 through the two elevator arm connecting rods 403, the other ends of the two hoisting ring connecting pieces 404 are hinged with one ends of the two hoisting rings 404, and the other ends of the two hoisting rings 404 are connected with the elevator 406.
The working flow of the top drive casing running device provided by the invention is as follows: the elevator assembly lifts the sleeve from the catwalk to the plane of the drill floor and realizes sleeve centering through the swing oil cylinder, the top drive drives the top drive sleeve-discharging device to be lowered together until the sleeve and the casing string are buckled, and the top drive mandrel drives the mandrel of the transmission system assembly to rotate so as to clamp the sleeve; the top drive mandrel continues to rotate, so that the turnbuckle and the butt buckle of the single casing pipe and the casing string are completed; loosening the slips, controlling the top drive to lower the sleeve, stopping rotating the top drive after the sleeve is lowered in place, and continuing to lower the sleeve by a proper amount to loosen the slips; the top drive is reversed, and the casing running device withdraws the slips; and the top drive casing running device is lifted to a proper position of the derrick along with the top drive, and repeatedly lifts the casing from the catwalk and continuously runs the casing until the casing running is completed.
The foregoing is merely illustrative embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present invention, and the invention should be covered. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (6)
1. A top drive casing running apparatus, comprising: the driving system assembly, the top drive anti-rotation mechanism assembly and the slip anti-rotation mechanism assembly; wherein,
the transmission system assembly comprises a mandrel, a sun gear, a planet wheel, a screw rod, a shifting fork and a slip, wherein the mandrel of the transmission system assembly is connected with the top-drive mandrel through taper threads, the sun gear is connected with the mandrel key, the planet wheel is in meshed transmission with the sun gear, the screw rod and the planet wheel form a screw rod nut pair, and the slip is in wedge fit with the mandrel;
the top drive anti-rotation mechanism assembly comprises a linear motor, a locking gear, an anti-rotation gear and an anti-rotation wheel disc, wherein the locking gear is sleeved on an output shaft of the linear motor and meshed with the anti-rotation gear, the anti-rotation wheel disc is clamped with the anti-rotation gear, and the planet wheel is arranged on the anti-rotation wheel disc;
the slip anti-rotation mechanism assembly comprises two half clamps and a double-row tapered roller bearing, wherein the inner ring of the double-row tapered roller bearing is connected with the screw rod, the outer ring of the double-row tapered roller bearing is connected with the two half clamps, and the lower ends of the two half clamps are connected with the slips through the shifting fork.
2. A top drive casing running apparatus as claimed in claim 1, further comprising an upper sleeve and a lower sleeve, said upper sleeve being mounted on said mandrel by end caps, a first single row tapered roller bearing and a second single row tapered roller bearing being mounted between the upper and lower ends of said upper sleeve and said mandrel, respectively, said lower sleeve being coupled to said upper sleeve by a sleeve coupling.
3. The top drive casing running device of claim 2, further comprising an elevator assembly, wherein the elevator assembly comprises two elevator bases, two elevator arms, two elevator arm connecting rods, two hoisting rings of two hoisting ring connecting pieces and an elevator, the two elevator bases are fixedly connected with the upper sleeve respectively, the upper ends of the two elevator arms are hinged with the two elevator bases respectively, the lower ends of the two elevator arms are hinged with one ends of the two hoisting ring connecting pieces through the two elevator arm connecting rods, the other ends of the two hoisting ring connecting pieces are hinged with one ends of the two hoisting rings, and the other ends of the two hoisting rings are connected with the elevator.
4. A top drive casing running apparatus as claimed in claim 1, wherein a guide head is threadedly coupled to the lower end of the mandrel, and a sealing ring and a sealing sleeve are mounted between the guide head and the mandrel.
5. The top drive casing running apparatus of claim 1, wherein the slips are formed of six sets of slip teeth, the six sets of slip teeth being uniformly distributed along the circumference of the mandrel, the six sets of slip teeth each having a stepped bevel shape, and bevel grooves being provided on the mandrel for mating with the six sets of slip teeth.
6. The top drive casing running assembly of claim 5 wherein the lower end surfaces of the two half-cards have six grooved spokes which are respectively engaged with the tails of the six sets of slip segments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910549631.1A CN110130831B (en) | 2019-06-24 | 2019-06-24 | Top drive casing running device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910549631.1A CN110130831B (en) | 2019-06-24 | 2019-06-24 | Top drive casing running device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110130831A CN110130831A (en) | 2019-08-16 |
| CN110130831B true CN110130831B (en) | 2024-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910549631.1A Active CN110130831B (en) | 2019-06-24 | 2019-06-24 | Top drive casing running device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110130831B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552619B (en) * | 2019-09-10 | 2021-05-18 | 中国石油集团川庆钻探工程有限公司 | Top drive rotary casing running device |
| CN110939391B (en) * | 2019-12-22 | 2021-06-29 | 黑龙江北方双佳钻采机具有限责任公司 | Mechanical type outer card top drive casing running device |
| CN112539039A (en) * | 2020-11-27 | 2021-03-23 | 中石化石油机械股份有限公司研究院 | Top drive lower casing sealing device |
| CN112845757A (en) * | 2021-02-23 | 2021-05-28 | 上海瀚霜机电设备有限公司 | Drawing machine |
| CN116498212B (en) * | 2023-03-13 | 2023-09-08 | 东营胜瑞石油科技有限公司 | Petroleum casing pressurizing device |
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