CN116696245A - Lifting method and lifting device for submarine drilling machine module - Google Patents
Lifting method and lifting device for submarine drilling machine module Download PDFInfo
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- CN116696245A CN116696245A CN202310692112.7A CN202310692112A CN116696245A CN 116696245 A CN116696245 A CN 116696245A CN 202310692112 A CN202310692112 A CN 202310692112A CN 116696245 A CN116696245 A CN 116696245A
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- 238000005553 drilling Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 8
- 238000013461 design Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- NMJORVOYSJLJGU-UHFFFAOYSA-N methane clathrate Chemical compound C.C.C.C.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O NMJORVOYSJLJGU-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005096 rolling process Methods 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/02—Supports for the drilling machine, e.g. derricks or masts specially adapted for underwater drilling
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to the technical field of submarine drilling, in particular to a lifting method and a lifting device of a submarine drilling machine module, wherein the lifting device comprises a first rack, a second rack and a power telescopic piece, one end of the power telescopic piece is connected with the first rack, the other end of the power telescopic piece is connected with the second rack, the lifting method comprises the steps of adjusting the power telescopic piece to the shortest stroke, fixing one end of the power telescopic piece on the first rack, and temporarily fixing the other end of the power telescopic piece with the second rack; starting the power telescopic piece and moving to the longest travel; temporarily fixing the first frame and the second frame, releasing the fixing of the power telescopic piece and the second frame, adjusting the power telescopic piece to the shortest stroke, temporarily fixing the power telescopic piece and the second frame, and releasing the fixing of the first frame and the second frame; the above process is repeated until the lifting device reaches the specified height. According to the invention, the lifting device is lifted by adopting a stepping method, so that the long-stroke lifting requirement is realized by using a smaller and shorter-stroke hydraulic cylinder.
Description
Technical Field
The invention relates to the technical field of submarine drilling, in particular to a lifting method and a lifting device of a submarine drilling machine module.
Background
The natural gas hydrate is used as a high-efficiency clean energy source, and has rich reserves in the south China sea area. However, due to the complex marine environment, conventional floating platforms have higher drilling costs, and thus a need exists to seek more cost effective drilling solutions. The main drilling equipment is arranged on the sea floor to perform operation, so that the construction and operation cost can be greatly reduced, and the method is very suitable for drilling wells (deep water shallow drilling) with natural gas hydrate. However, in existing engineering applications, there is no subsea rig dedicated to marine natural gas hydrate drilling.
In order to solve the problems, the Chinese patent with the application publication number of CN114961563A discloses a deep-water submarine coiled tubing drilling machine, and the scheme realizes the conversion between a high-level state and a low-level state by arranging a lifting frame, so that the requirements of lower gravity center and strong wind and wave resistance in the process of transportation and installation of the submarine under the ship and long-stroke drilling of submarine drilling can be met. However, the lifting function of the frame is realized by adopting the long-stroke hydraulic cylinder, and the long-stroke hydraulic cylinder has the advantages of large design and manufacturing difficulty, insufficient precision, poor stability, high cost and unfavorable actual engineering application.
Disclosure of Invention
The invention aims to provide a lifting method and a lifting device of a submarine drilling module, which can be switched under different high-low states. In the process of transporting and lowering the drilling machine from the ship to the seabed installation, the drilling machine module frame is positioned at a low position, so that the wind and wave resistance requirements in the process of sailing and lowering the ship are ensured. After the drilling machine module is lowered to the seabed for installation, the state is switched to be raised to a high position by a stepping lifting method, so that the requirement of long-stroke drilling of the drilling machine is met, and the problem in the background technology is solved.
In order to achieve the above object, the present invention provides a lifting method for a subsea drilling machine module, for lifting a lifting device, the lifting device including a first frame, a second frame, and a power expansion member, wherein the first frame is slidably connected to the second frame, one end of the power expansion member is connected to the first frame, and the other end of the power expansion member is connected to the second frame, the lifting method includes:
the preparation stage comprises the steps of adjusting the power telescopic piece to the shortest stroke, fixing one end of the power telescopic piece on a first rack, and temporarily fixing the other end of the power telescopic piece with a second rack;
in the lifting stage, starting the power telescopic piece and moving to the longest travel;
an adjustment stage, in which the first frame and the second frame are temporarily fixed, the power telescopic member and the second frame are released from fixation, the power telescopic member is temporarily fixed to the second frame after being adjusted to the shortest stroke, and the first frame and the second frame are released from fixation;
repeating the lifting stage and the adjusting stage until the lifting device reaches the designated height.
The invention further provides a lifting device of the submarine drilling machine module, which comprises a first rack, a second rack and a power telescopic piece, wherein the first rack is connected with the second rack in a sliding manner, one end of the power telescopic piece is connected with the first rack, the other end of the power telescopic piece is connected with the second rack, and the lifting device is lifted by adopting the lifting method.
Further, the first frame and the second frame are both rectangular truss structures, and the second frame is embedded in the first frame and is in sliding connection with the first frame.
Further, the lifting device further comprises a first bolt and a second bolt, a jack is arranged on the second rack, the first bolt is connected with the first rack and the second rack and fixes the first rack and the second rack, and the second bolt is connected with the output end of the power telescopic piece and the second rack and fixes the second rack and the power telescopic piece.
Further, a mounting block is fixed on one side of the first frame, the base end of the power telescopic piece is fixed on the mounting block, the mounting block corresponds to the jack in position, and a first bolt is arranged on one side of the mounting block.
Further, a sliding block is fixed at the output end of the power telescopic piece, the sliding block corresponds to the jack, and a second bolt is arranged on one side of the sliding block.
Further, a chute limiting the sliding block is arranged on the first frame.
Further, the power telescopic piece adopts a hydraulic cylinder.
Further, the lifting device further comprises a guide piece, the guide piece is arranged on the first rack, and the second rack is abutted against the guide piece and is connected with the guide piece in a sliding mode.
Further, the power telescopic members are provided in plurality, and the power telescopic members are arranged on at least four sides of the first frame and the second frame in the height direction.
The invention has the beneficial effects that:
1. according to the invention, the lifting device is lifted by adopting a stepping method, so that the long-stroke lifting requirement is realized by using a smaller and shorter-stroke hydraulic cylinder, the volume and weight of the equipment are reduced, the precision and stability are ensured, and the manufacturing cost and the maintenance cost of the equipment are greatly reduced. The invention has simple and compact design structure, and can remarkably improve the lifting accuracy, stability and safety of the submarine drilling machine module. The stepping lifting method can be flexibly designed according to specific requirements to adapt to various different types and scales of underwater equipment.
2. The lifting device further comprises a first bolt and a second bolt, the first frame and the second frame are temporarily fixed through the first bolt and the second bolt, the power telescopic piece and the second frame are temporarily fixed, the structure is simple, and the purpose of stepping lifting of the second frame is conveniently achieved.
3. The first frame is provided with the sliding groove limiting the sliding block, and the sliding groove is arranged to guide and limit the moving direction of the sliding block, so that the second frame can conveniently lift along the vertical direction.
4. The lifting device further comprises a guide piece, the guide piece is arranged on the first frame, and the second frame is abutted against the guide piece and is connected to the guide piece in a sliding manner. By providing the guide, the moving direction of the second frame is defined so as to be lifted only in the vertical direction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a stowing state of a lifting device of a subsea drilling machine module according to embodiment 2 of the present invention;
fig. 2 is a schematic diagram of a lifting process of a lifting device of a subsea drilling machine module according to embodiment 2 of the present invention;
fig. 3 is a schematic diagram of a lifting device of a subsea drilling machine module according to embodiment 2 of the present invention in a lifting completion state;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic view showing a partial structure of a lifting device of a subsea drilling machine module according to embodiment 2 of the present invention;
fig. 6 is a schematic view of the overall structure of the drilling apparatus.
Reference numerals illustrate:
1. a first frame; 11. a mounting block; 12. a chute; 2. a second frame; 21. a jack; 3. a hydraulic cylinder; 4. a hydraulic pump unit; 5. a first latch; 6. a second latch; 7. a slide block; 8. a guide member; 9. drilling equipment; 91. blowout preventer; 92. a manipulator; 93. a rake; 94. and (5) drilling a machine.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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 be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Example 1
Referring to fig. 1 to 6, as a lifting method of a subsea drilling machine module provided by an embodiment of the present invention, for lifting a lifting device, the lifting device includes a first frame 1, a second frame 2, and a power telescopic member, the first frame 1 is slidably connected to the second frame 2, one end of the power telescopic member is connected to the first frame 1, and the other end is connected to the second frame 2, and the lifting method includes:
the preparation stage, the power telescopic piece is adjusted to the shortest stroke, one end of the power telescopic piece is fixed on the first frame 1, and the other end of the power telescopic piece is temporarily fixed with the second frame 2;
in the lifting stage, starting the power telescopic piece and moving to the longest travel;
the adjustment stage, namely temporarily fixing the first frame 1 and the second frame 2, releasing the power telescopic piece from the second frame 2, temporarily fixing the power telescopic piece and the second frame 2 after the power telescopic piece is adjusted to the shortest stroke, and releasing the first frame 1 and the second frame 2;
repeating the lifting stage and the adjusting stage until the lifting device reaches the designated height.
According to the invention, the lifting device is lifted by adopting a stepping method, so that the long-stroke lifting requirement is realized by using the smaller and shorter-stroke hydraulic cylinder 3, the volume and weight of the equipment are reduced, the precision and stability are ensured, and the manufacturing cost and the maintenance cost of the equipment are greatly reduced. The invention has simple and compact design structure, and can remarkably improve the lifting precision, stability and safety of the submarine drilling machine 94 module. The stepping lifting method can be flexibly designed according to specific requirements to adapt to various different types and scales of underwater equipment.
Specifically, the first frame 1 and the second frame 2 are both rectangular truss structures, and the second frame 2 is embedded in the first frame 1 and is slidably connected to the first frame 1. The top platform of the first frame 1 is provided with a power telescopic part, and in this embodiment, the power telescopic part adopts a hydraulic cylinder 3 in the prior art. The hydraulic cylinders 3 are arranged on four sides of the first frame 1 and the second frame 2 in the height direction. The top platform of the first frame 1 is fixed with a mounting block 11, and the base of the hydraulic cylinder 3 is fixed on the mounting block 11. The output shaft end of a piston rod of the hydraulic cylinder 3 is fixedly connected with a sliding block 7, and the installation block 11 and the sliding block 7 are respectively provided with a bolt device.
When the second frame 2 in the interior is lifted, the oil cylinder is in a short stroke, and the bolts of the sliding block 7 and the mounting block 11 are inserted into the insertion holes 21 of the second frame 2. Then the bolt in the mounting block 11 is pulled out of the jack 21 of the second frame 2, the bolt of the sliding block 7 is kept to be inserted into the jack 21 of the second frame 2, the oil cylinder is loaded and extended to the longest stroke, the bolt on the mounting block 11 is inserted into the jack 21 of the second frame 2 after the second frame 2 is lifted up to one pitch, the bolt of the sliding block 7 is pulled out, and the oil cylinder is retracted to the shortest stroke. Repeating the above actions to enable the second frame 2 to achieve the purpose of continuous lifting; when the second frame 2 is lowered, the above-mentioned opposite operations are repeated, and the purpose of continuously lowering the second frame 2 can be completed. The bottom deck of the first frame 1 is provided with a blowout preventer 91, a manipulator 92, a rake 93 and other drilling equipment 9, and the top deck of the second frame 2 is provided with a drilling machine 94. In the process of transporting and lowering the submarine drilling machine module from the ship to the submarine installation, the second frame 2 integrally descends into the first frame 1, the height of the frame and the integral center of gravity are in low positions, and the wind and wave resistance requirements in the process of sailing and lowering the ship are ensured. After the frame is lowered to the seabed for installation, the operation of casing running is completed through the lifting of the second frame 2, and finally the second frame 2 is lifted to a high position, so that the requirement of long-stroke drilling of the drilling machine 94 is met.
Example 2
Referring to fig. 1 to 6, as a lifting device for a subsea drilling machine module provided by the embodiment of the invention, the lifting device comprises a first frame 1, a second frame 2 and a power telescopic member, wherein the first frame 1 is slidably connected to the second frame 2, one end of the power telescopic member is connected with the first frame 1, the other end of the power telescopic member is connected with the second frame 2, and the lifting device is lifted by adopting the lifting method in the embodiment 1.
Specifically, the first frame 1 and the second frame 2 are rectangular truss structures, the second frame 2 is embedded in the first frame 1 and is connected with the first frame 1 in a sliding manner, and the connection stability of the first frame 1 and the second frame 2 can be better through the structure, so that the impact of water flow and wind waves can be effectively resisted. The lifting device is further provided with a first bolt 5 and a second bolt 6, the second frame 2 is provided with a jack 21, the first bolt 5 is connected with the first frame 1 and the second frame 2 and fixes the first frame and the second frame, and the second bolt 6 is connected with the output end of the power telescopic part and the second frame 2 and fixes the power telescopic part and the second frame. The first rack 1 and the second rack 2 are temporarily fixed and the power telescopic part and the second rack 2 are temporarily fixed through the first bolt 5 and the second bolt 6, the structure of the bolt connection is simple and easy to operate, and the purpose of stepping lifting of the second rack 2 is conveniently achieved.
One side of the first frame 1 is fixed with a mounting block 11, the base end of the power expansion piece is fixed on the mounting block 11, the mounting block 11 corresponds to the jack 21 in position, and one side of the mounting block 11 is provided with a first bolt 5. The output end of the power telescopic piece is fixed with a sliding block 7, the sliding block 7 corresponds to the jack 21 in position, and one side of the sliding block 7 is provided with a second bolt 6. In this embodiment, the power expansion member adopts pneumatic cylinders 3 among the prior art, and pneumatic cylinders 3 are a plurality of, are equipped with pneumatic cylinders 3 at least on four edges in the direction of height of first frame 1 and second frame 2, make things convenient for second frame 2 even atress, stably rise and descend.
When the second frame 2 is lifted, the hydraulic cylinder 3 is in a short stroke, and the second bolt 6 on the sliding block 7 and the first bolt 5 on the mounting block 11 are inserted into the jack 21 of the second frame 2. The first bolt 5 is pulled out of the jack 21 of the second rack 2, the first bolt 5 is kept inserted into the jack 21 of the second rack 2, the hydraulic cylinder 3 is loaded and extended to the longest stroke, the second rack 2 is lifted up to one pitch, the first bolt 5 is inserted, the second bolt 6 is pulled out, and the hydraulic cylinder 3 is retracted to the shortest stroke. Repeating the above actions to enable the second frame 2 to achieve the purpose of continuous lifting; when the second frame 2 is lowered, the above-mentioned opposite operations are repeated, and the purpose of continuously lowering the second frame 2 can be completed.
The bottom deck of the first frame 1 is provided with a blowout preventer 91, a manipulator 92, a rake 93 and other drilling equipment 9, and the top deck of the second frame 2 is provided with a drilling machine 94. In the process of transporting and lowering the submarine drilling machine module from the ship to the submarine installation, the second frame 2 integrally descends into the first frame 1, the height of the frame and the integral center of gravity are in low positions, and the wind and wave resistance requirements in the process of sailing and lowering the ship are ensured. After the frame is lowered to the seabed for installation, the operation of casing running is completed through the lifting of the second frame 2, and finally the second frame 2 is lifted to a high position, so that the requirement of long-stroke drilling of the drilling machine 94 is met. In practical application, the lifting of the second frame 2 can be adjusted according to the operation requirement of the submarine drilling machine 94 module so as to meet the operation requirements of submarine drilling machines 94 with different depths. Meanwhile, the stepping hydraulic lifting mechanism can adjust the number and the positions of the hydraulic cylinders 3 according to actual needs so as to adapt to the submarine drilling machine 94 modules with different sizes.
Further, a sliding groove 12 limiting the sliding block 7 is arranged on the first frame 1, the sliding block 7 is embedded, and the sliding groove 12 limits the sliding block 7 in the sliding groove 12. By arranging the sliding groove 12, the moving direction of the sliding block 7 is guided and limited, so that the second frame 2 can conveniently lift along the vertical direction.
Further, the lifting device further comprises a guide piece 8, the guide piece 8 is arranged on the first frame 1, and the second frame 2 is abutted against the guide piece 8 and is connected to the guide piece 8 in a sliding manner. By providing the guide 8, the moving direction of the second frame 2 is limited so that it can be lifted and lowered only in the vertical direction. In this embodiment, the guide member 8 adopts a guide pulley, and the guide pulley can limit the moving direction of the second frame 2, and meanwhile, the second frame 2 receives a rolling friction force on the guide pulley, so that the friction force is small.
The lifting device of the submarine drilling machine module is required to complete lifting operation of high and low positions by a large extent, and a traditional hydraulic mechanism is often required to design and manufacture a long-stroke hydraulic cylinder 3. However, the long-stroke hydraulic cylinder 3 is difficult to design and manufacture, has high cost, and has poor stability and reliability in a submarine environment, which may cause potential safety hazards in the drilling process. The stepping lifting device adopts a stepping lifting method to lift the mechanism, realizes long-stroke lifting requirement by using the smaller and shorter-stroke hydraulic cylinder 3, reduces the volume and weight of equipment, ensures the accuracy and stability, and greatly reduces the manufacturing cost and maintenance cost of the equipment. The invention has simple and compact design structure, and can remarkably improve the lifting accuracy, stability and safety of the submarine drilling machine module. The stepping hydraulic lifting mechanism has strong adaptability and can be flexibly designed according to specific requirements so as to adapt to various different types and scales of underwater equipment.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. Lifting method of a subsea drilling machine module for lifting a lifting device, the lifting device comprising a first frame (1), a second frame (2) and a power telescopic member, the first frame (1) being slidably connected to the second frame (2), one end of the power telescopic member being connected to the first frame (1) and the other end being connected to the second frame (2), characterized in that the lifting method comprises:
the preparation stage comprises the steps of adjusting the power telescopic piece to the shortest stroke, fixing one end of the power telescopic piece on a first frame (1), and temporarily fixing the other end of the power telescopic piece with a second frame (2);
in the lifting stage, starting the power telescopic piece and moving to the longest travel;
an adjustment stage of temporarily fixing the first frame (1) and the second frame (2), releasing the power telescopic member from the second frame (2), temporarily fixing the power telescopic member and the second frame (2) after the power telescopic member is adjusted to the shortest stroke, and releasing the first frame (1) and the second frame (2);
repeating the lifting stage and the adjusting stage until the lifting device reaches the designated height.
2. The utility model provides a lifting device of seabed rig module, includes first frame (1), second frame (2) and power telescoping member, first frame (1) sliding connection in second frame (2), power telescoping member one end is connected first frame (1), the other end is connected second frame (2), its characterized in that, lifting device adopts the lifting method of claim 1 to go up and down.
3. Lifting device for a subsea drilling module according to claim 2, characterized in that the first frame (1) and the second frame (2) are both rectangular truss structures, the second frame (2) being embedded in the first frame (1) and being slidingly connected to the first frame (1).
4. A lifting device for a subsea drilling module according to claim 3, characterized in that the lifting device further comprises a first bolt (5) and a second bolt (6), wherein the second frame (2) is provided with a jack (21), the first bolt (5) connects and fixes the first frame (1) and the second frame (2), and the second bolt (6) connects and fixes the output end of the power extension and the second frame (2).
5. The lifting device of a subsea drilling module according to claim 4, characterized in that a mounting block (11) is fixed on one side of the first frame (1), the base end of the power telescopic member is fixed on the mounting block (11), the mounting block (11) corresponds to the position of the jack (21), and the first plug pin (5) is arranged on one side of the mounting block (11).
6. Lifting device for a subsea drilling module according to claim 4, characterized in that the output end of the power telescopic member is fixed with a slide block (7), the slide block (7) corresponds to the position of the jack (21), and one side of the slide block (7) is provided with the second bolt (6).
7. Lifting device of a subsea drilling module according to claim 6, characterized in that the first frame (1) is provided with a chute (12) limiting the slide (7).
8. Lifting device for a subsea drilling module according to claim 2, characterized in that the power telescopic means are hydraulic cylinders (3).
9. A lifting device of a subsea drilling module according to claim 3, characterized in that the lifting device further comprises a guide (8), the guide (8) being provided on the first frame (1), the second frame (2) abutting the guide (8) and being slidingly connected to the guide (8).
10. A lifting device of a subsea drilling module according to claim 3, characterized in that the power telescopic members are provided in a plurality, at least on four sides in the height direction of the first frame (1) and the second frame (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310692112.7A CN116696245A (en) | 2023-06-12 | 2023-06-12 | Lifting method and lifting device for submarine drilling machine module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310692112.7A CN116696245A (en) | 2023-06-12 | 2023-06-12 | Lifting method and lifting device for submarine drilling machine module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116696245A true CN116696245A (en) | 2023-09-05 |
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ID=87828831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310692112.7A Pending CN116696245A (en) | 2023-06-12 | 2023-06-12 | Lifting method and lifting device for submarine drilling machine module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116696245A (en) |
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2023
- 2023-06-12 CN CN202310692112.7A patent/CN116696245A/en active Pending
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