CN112031681A - Hydraulic workover rig - Google Patents
Hydraulic workover rig Download PDFInfo
- Publication number
- CN112031681A CN112031681A CN202011046495.3A CN202011046495A CN112031681A CN 112031681 A CN112031681 A CN 112031681A CN 202011046495 A CN202011046495 A CN 202011046495A CN 112031681 A CN112031681 A CN 112031681A
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- CN
- China
- Prior art keywords
- hydraulic
- lifting mechanism
- hydraulic lifting
- work platform
- working platform
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- 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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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
- E21B19/15—Racking of rods in horizontal position; Handling between horizontal and vertical position
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
-
- 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
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
-
- 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
- E21B19/16—Connecting or disconnecting pipe couplings or joints
Abstract
The invention discloses a hydraulic workover rig which comprises a lower working platform, an upper working platform and a hydraulic lifting mechanism positioned between the lower working platform and the upper working platform, wherein the lower working platform, the upper working platform and the hydraulic lifting mechanism are of a modular structure, the hydraulic lifting mechanism comprises four hydraulic lifting cylinders, the upper end of the lower working platform is connected with the bottom end of the hydraulic lifting mechanism, the middle part of the hydraulic lifting mechanism is connected with a fixed slip, the top part of the hydraulic lifting mechanism is connected with a hydraulic turntable, the top part of the hydraulic turntable is provided with a movable slip, the upper working platform is provided with a drill rod power tong boom, and the drill rod power tong boom is connected with a hydraulic drill rod power tong through a lifting rope. The hydraulic device is utilized to lift and convey the oil pipe rod to a designated working position through the mechanical mechanism, and meanwhile, the working table surface is used as a pipe rod movable slideway to directly receive and convey the oil pipe rod in the process of tripping.
Description
Technical Field
The invention relates to the technical field of workover equipment, in particular to a hydraulic workover rig.
Background
At present, when the oil field workover operation is carried out, a wellhead operation platform is very high away from the ground due to the fact that wellhead devices such as a blowout preventer are installed on a wellhead, and the pulling and feeding of an oil pipe are completed by matching a workover rig suspension system with manpower when the oil pipe is pulled out and drilled down. The labor intensity of post workers is high, the working efficiency is low, and the safety of personnel is poor. The machine replaces manpower, improves the current working situation that the current operation workers are dirty and tired, ensures safe production, and is a requirement for the development of the underground operation of the oil field.
Disclosure of Invention
The invention aims to provide a hydraulic workover rig aiming at the technical defects in the prior art, in particular to an oil pipe hydraulic lifting auxiliary machine, which utilizes a hydraulic device to lift and convey an oil pipe rod to a specified working position through a mechanical mechanism, simultaneously, a working table surface is used as a pipe rod movable slideway, and the oil pipe rod is directly delivered in the process of tripping, so that the work of replacing manual lifting, reciprocating delivery and the like is realized, the labor intensity of workers is reduced, the current dirty and tired working situation of the current workers is improved, the unsafe factors in the process of tripping are eliminated, and the working efficiency of underground operation is improved.
The technical scheme adopted for realizing the purpose of the invention is as follows:
the utility model provides a hydraulic workover rig, includes lower part work platform, upper portion work platform and is located hydraulic lifting mechanism between lower part work platform, the upper portion work platform, lower part work platform, upper portion work platform and hydraulic lifting mechanism is modular structure, hydraulic lifting mechanism includes four hydraulic lifting cylinder, hydraulic lifting mechanism's bottom is connected to lower part work platform's upper end, fixed slips is connected at hydraulic lifting mechanism's middle part, hydraulic pressure carousel is connected at hydraulic lifting mechanism's top, hydraulic pressure carousel's top is provided with the removal slips, the last drilling rod power tong davit that is equipped with of upper portion work platform, drilling rod power tong davit passes through the lifting rope and connects hydraulic drill rod power tong.
The hydraulic workover rig further comprises a telescopic lifting mast, the bottom of the telescopic lifting mast is fixed with the lower working platform, and the upper end of the telescopic lifting mast is higher than the upper working platform by a preset height.
The telescopic lifting mast is provided with a high-pressure water faucet in a hanging mode, the high-pressure water faucet is connected with a high-pressure water vertical pipe through a high-pressure water belt, and the high-pressure water vertical pipe is fixed on the upper working platform and extends vertically and downwards.
The bottom of the upper working platform is connected with the bottom of the hydraulic lifting mechanism through four obliquely arranged pull rods, and two ends of the four pull rods are respectively hinged with the upper working platform and the hydraulic lifting mechanism.
And a stair is arranged between the upper working platform and the lower working platform.
The bottom of the upper working platform is provided with an avoidance hole, and the hydraulic rotary disc and the movable slips extend upwards from the avoidance hole.
The invention utilizes the hydraulic device to lift and convey the oil pipe rod to the designated working position through the mechanical mechanism, and meanwhile, the working table surface is used as a movable slideway of the pipe rod to directly receive and convey the oil pipe rod in the process of tripping, thereby realizing the work of replacing manual lifting, reciprocating receiving and conveying and the like, reducing the labor intensity of workers, improving the current working situation that the current workers are dirty and tired, eliminating unsafe factors in the process of tripping and improving the working efficiency of underground operation.
Drawings
FIG. 1 is an isometric view of a hydraulic workover rig of the present invention;
FIG. 2 is a side view of a hydraulic workover rig;
FIG. 3 is a main view of the hydraulic workover rig;
FIG. 4 is a top view of the hydraulic workover rig;
FIG. 5 is a front view of the hydraulic lifting mechanism;
FIG. 6 is a top view of the hydraulic lift mechanism;
FIG. 7 is a top view of the lower work platform;
fig. 8 is a partial front view of the whole.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1-8, the invention is a non-pressurized operation device, i.e. a non-pressurized workover rig, which comprises a lower working platform 11, a hydraulic lifting mechanism 12 and an upper working platform (working basket) 8; the hydraulic lifting mechanism 12 is provided with a hydraulic rotary table 9, a slip 7 which is arranged on the hydraulic chuck 9 and can move up and down under the drive of the hydraulic lifting mechanism and is positioned at the upper part, and a slip 7 which is fixed at the middle position on the hydraulic lifting mechanism and is positioned at the middle part and can not move; a telescopic hoisting mast 6 is further arranged, a drill rod power tong boom 3 is mounted on an upper working platform (working basket) 8, and a drill rod power tong 4 (a lifting rope or a lifting cable is not shown) is hoisted by the drill rod power tong boom 3.
The lower working platform, the hydraulic lifting mechanism and the upper working platform (working basket) are of modular structures, form a module whole respectively, are detachably connected and are convenient to transport and assemble.
The hydraulic lifting mechanism adopts four hydraulic cylinders which are arranged in a rectangular shape, a power source is from a hydraulic power station, two working modes are provided, and factors such as lifting speed, lifting force and stroke of the lifting cylinder need to be considered during design.
The bottom of the telescopic lifting mast is fixed with the lower working platform, and the upper end of the telescopic lifting mast is higher than the upper working platform by a preset height.
The telescopic lifting mast is provided with a high-pressure water faucet 5 in a hanging manner, the high-pressure water faucet is connected with a high-pressure water vertical pipe 2 through a high-pressure water belt 1, the high-pressure water vertical pipe is fixed on the upper working platform and vertically extends downwards, and the high-pressure water faucet is arranged to facilitate washing.
The bottom of the upper working platform is connected with the bottom of the hydraulic lifting mechanism through four pull rods 13 which are obliquely arranged, and two ends of the four pull rods are respectively hinged with the upper working platform and the hydraulic lifting mechanism.
Wherein a staircase 10 is arranged between the upper working platform and the lower working platform.
The bottom of the upper working platform is provided with an avoidance hole, and the hydraulic rotary disc and the movable slips extend upwards from the avoidance hole.
Foretell upper portion work platform adopts nested formula to be connected through the connecting plate 17 of the trapezoidal frame 15 of a bottom and the roof 14 of the upper end of hydraulic lifting mechanism 12, forms detachable structure, the transportation after convenient equipment and the dismantlement, the hydraulic pressure carousel is fixed connecting plate 17 upper surface on, the middle part of hydraulic lifting mechanism 12 sets up slips connecting plate 18 to the fixed slips of installation.
The bottom of the hydraulic lifting mechanism 12 is connected with a base 16, the pull rod is connected with a hinge hole on the outer side of the base, and the base 16 is fixedly connected with a lower working platform (as shown in a figure 7 method) through bolts to form a detachable structure, so that the assembly and the transportation after the disassembly are convenient.
Upper portion work platform (work basket) for the position of staff control equipment, control fixed slips and remove the slips, equipment such as hydraulic cylinder lift is the control center of whole equipment, and degree of automation is high, and operating panel is simple and clear, very big reduction the required amount of labour of staff and staff's quantity.
The telescopic lifting mast is designed for the purpose of lifting the drilling/completion string from the pipe rack to the work basket or vice versa, and therefore is designed with consideration for the lifting load and with strength checks.
The hydraulic drill pipe power tongs are positioned in the working basket and used for tripping on and off the well completion pipe string. The size and the torque of the hydraulic drill pipe power tongs are configured according to the pipe column to be tripped, and the power of the hydraulic drill pipe power tongs is uniformly sourced from a power station of the hydraulic lifting device.
The drill pipe power tong arm is used for hanging the hydraulic drill pipe power tong, so that an operator can conveniently and flexibly change the position of the power tong, and the hydraulic drill pipe power tong arm is used for screwing on and unscrewing a well completion pipe string. The design is the same as that of a telescopic hoisting mast, the root of the drill pipe power tong arm is directly arranged on the bottom workbench, so that the tong arm has enough strength to meet the requirement of hanging a large-size power tong and provide enough reaction torque during the screwing-off operation.
The slip seat conical joggle design of the movable slip and the fixed slip meets the requirement of applying downward pressure on the completion string. If the opening size of the slips is required to be increased (as required by the large size completion string such as the Y-joint of an electrical submersible pump), a fixed pre-set locking pin on the slip bowl is removed. The slips are opened and closed by hydraulic pressure, and slip teeth of different models are required to be configured for different pipe column sizes.
The hydraulic rotary table is a single part and is used for providing torque output for the hydraulic lifting device when the operations of milling, salvaging, drilling and the like are required. The hydraulic turntable with the oil duct sliding ring is preferably adopted, so that the repeated operation of disassembling the oil pipe in the actual operation process is avoided, and the leakage and the pollution of equipment are greatly avoided.
The device also comprises a hydraulic power source which provides power for the hydraulic lifting device and is the heart of the whole device. The power required by the lifting system, the BOP system, the hydraulic rotary table, the slips, the power tongs, the winch and the like comes from the hydraulic station.
In order to ensure continuous operation, an external fuel tank is specially configured for the diesel engine, and the capacity of the fuel tank is required to be capable of supplying 24 hours of fuel. The design of the hydraulic power source needs to consider the working environment requirement of the whole equipment, the equipment power, the heat dissipation condition and the like.
In the process of tripping the oil pipe or the casing pipe, the lower working platform is connected with a BOP system through a converter, and after the oil pipe or the casing pipe comes out of the BOP, the oil pipe or the casing pipe sequentially passes through a movable slip, a hydraulic rotary table and a fixed slip.
During operation, the fixed slips that the fixed is located hydraulic lifting mechanism middle part breaks off when oil pipe reachs the movable slips on upper portion, the slips that can reciprocate the removal simultaneously is held tightly, the slips that removes carries out ascending removal through hydraulic lifting cylinder and hydraulic pressure carousel, oil pipe also rebound simultaneously, when reacing the assigned position, fixed slips is held tightly, the slips that can remove is loosened, hydraulic lifting cylinder retracts to original position, can improve oil pipe to the work requirement height through this repetitive motion.
After the lifting is finished, a worker of the upper workbench stretches out a steel wire sling with enough length on the telescopic lifting mast by controlling the winch, the worker connects the connecting device to the oil pipe head, and the hydraulic drill pipe power tong jaw is moved to the joint of the oil pipe by the drill pipe power tong suspension arm to be unscrewed. After the oil pipe or the drill pipe is unloaded, the telescopic hoisting mast lifts the drill pipe or the oil pipe through the steel wire sling and then moves the drill pipe or the drill pipe into the oil pipe basket.
The above operation greatly reduces the labor intensity of the working personnel.
Furthermore, the entire installation is installed on a subsea blowout preventer (BOP) system, raising the riser and casing head (which eventually transfers to the riser), and the platform deck does not carry the operational loads.
The invention discloses a hydraulic workover rig, which is a drilling and workover device for tripping a well completion pipe string under a non-pressurized state of a shaft by using a hydraulic lifting system. Unlike conventional rigs, including conventional hydraulic workover rigs, the hydraulic lift device may be connected directly to the oil and gas well casing head (or tubing spool) through a converter to transfer the load to the wellhead. The unique operation mode can greatly reduce the requirements on deck load and operation area of the offshore oil production platform, thereby greatly saving the investment of oil field construction.
The hydraulic workover rig is in modular design and comprises three modules, the maximum weight of a single piece is not more than 8.5 tons, and the hydraulic workover rig is easy to disassemble and move and has great moving flexibility.
The invention can be used for well completion or re-completion, electrical submersible pump replacement and installation, tubing transmission perforating (TCP), sand control operations, small scale drilling operations (e.g., sidetracking), fishing operations (in-casing & through tubing), milling/casing/drilling cement plugs and bridge plugs, acidizing, fracturing, stimulation measures, well abandonment/cement extrusion, and the like.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a hydraulic workover rig, its characterized in that includes lower part work platform, upper portion work platform and is located hydraulic lifting mechanism between lower part work platform, the upper portion work platform, lower part work platform, upper portion work platform and hydraulic lifting mechanism is modular structure, hydraulic lifting mechanism includes four hydraulic lifting cylinders, hydraulic lifting mechanism's bottom is connected to lower part work platform's upper end, fixed slips is connected at hydraulic lifting mechanism's middle part, hydraulic turntable is connected at hydraulic lifting mechanism's top, hydraulic turntable's top is provided with the removal slips, the last drilling rod power tong davit that is equipped with of upper portion work platform, drilling rod power tong davit passes through the lifting rope and connects hydraulic drill rod power tong.
2. The hydraulic workover rig of claim 1, further comprising a telescoping lift mast, the bottom of the telescoping lift mast being fixed to the lower work platform and the upper end of the telescoping lift mast being elevated above the upper work platform by a predetermined height.
3. The hydraulic workover rig according to claim 2, wherein a high-pressure water tap is hung on the telescopic lifting mast and connected with a high-pressure water vertical pipe through a high-pressure water belt, and the high-pressure water vertical pipe is fixed on the upper working platform and vertically extends downwards.
4. The hydraulic workover rig according to claim 1, wherein the bottom of the upper working platform is connected with the bottom of the hydraulic lifting mechanism through four obliquely arranged pull rods, and two ends of the four pull rods are respectively hinged with the upper working platform and the hydraulic lifting mechanism.
5. The hydraulic workover rig of claim 1 wherein a staircase is disposed between the upper and lower work platforms.
6. The hydraulic workover rig of claim 1, wherein the bottom of the upper work platform forms an access hole, the hydraulic rotary table and the mobile slips extending upwardly from the access hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011046495.3A CN112031681A (en) | 2020-09-29 | 2020-09-29 | Hydraulic workover rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011046495.3A CN112031681A (en) | 2020-09-29 | 2020-09-29 | Hydraulic workover rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112031681A true CN112031681A (en) | 2020-12-04 |
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ID=73574814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011046495.3A Pending CN112031681A (en) | 2020-09-29 | 2020-09-29 | Hydraulic workover rig |
Country Status (1)
| Country | Link |
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| CN (1) | CN112031681A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983315A (en) * | 2021-05-19 | 2021-06-18 | 胜利油田胜机石油装备有限公司 | Quick assembling and disassembling method for well repairing operation faucet and suspension pushing manipulator |
| WO2023217991A1 (en) * | 2022-05-11 | 2023-11-16 | Vollmar Dennis | Modular well tubular handling system and method of use |
-
2020
- 2020-09-29 CN CN202011046495.3A patent/CN112031681A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112983315A (en) * | 2021-05-19 | 2021-06-18 | 胜利油田胜机石油装备有限公司 | Quick assembling and disassembling method for well repairing operation faucet and suspension pushing manipulator |
| WO2023217991A1 (en) * | 2022-05-11 | 2023-11-16 | Vollmar Dennis | Modular well tubular handling system and method of use |
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