CN110878677A - Submarine drilling rig carried by ROV - Google Patents
Submarine drilling rig carried by ROV Download PDFInfo
- Publication number
- CN110878677A CN110878677A CN201911146173.3A CN201911146173A CN110878677A CN 110878677 A CN110878677 A CN 110878677A CN 201911146173 A CN201911146173 A CN 201911146173A CN 110878677 A CN110878677 A CN 110878677A
- Authority
- CN
- China
- Prior art keywords
- rov
- shell
- gear
- drilling rig
- cross beam
- 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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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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/12—Underwater drilling
- E21B7/124—Underwater drilling with underwater tool drive prime mover, e.g. portable drilling rigs for use on underwater floors
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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
- E21B12/00—Accessories for drilling tools
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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
- E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
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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
- E21B19/16—Connecting or disconnecting pipe couplings or joints
- E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
- E21B19/164—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe motor actuated
Abstract
The invention discloses a submarine drilling rig carried by an ROV (remote operated vehicle), which comprises a power device, a shell (5) and a main shaft (11), and is characterized in that: the power device is connected with the main shaft (11) through a gear, the power device is connected with the shell (5), the buffer upright post (4) is arranged above the shell (5), the buffer spring (3) is placed on the mandrel on the upper portion of the buffer upright post (4), the upper portion of the buffer upright post (4) is provided with the upper cross beam (1) capable of moving up and down along the mandrel, the upper end of the buffer spring (3) supports the bottom of the upper cross beam (1), and the middle of the upper cross beam (1) is connected with the ROV feeding oil cylinder. The invention has the advantages of small volume, light weight, low cost, effective prevention of drill jamming, capability of bearing larger pressure, suitability for ROV carrying and the like.
Description
Technical Field
The invention relates to the field of submarine drilling equipment, in particular to a submarine drilling rig carried by an ROV.
Background
The vast ocean bottom contains abundant mineral resources, and has great economic value and strategic significance. Deep sea is one of the few unknown regions of the earth, and scientists have a great interest in deep sea mineral composition, mineral age, mineral formation mechanism, physical and chemical properties of minerals, and biological and environmental conditions around minerals. These studies, which cover multiple disciplines of marine geology, marine life, marine chemistry, marine physics, marine prospecting, marine mining, all require large samples of deep sea minerals. Therefore, the acquisition of deep sea mineral core samples plays a crucial role in the research of marine science and the exploration and development of submarine mineral resources.
The operating environment of the seabed is severe, the drilling machine needs to bear high pressure, the underwater mass load distribution requirement of an ROV (underwater robot) is very strict, and the drilling machine is required to have light mass and simultaneously ensure good high pressure resistance and sealing performance. This causes considerable difficulties in the design of the drilling machine. In addition, the complicated and changeable rock stratum in the seabed enables drilling accidents to occur easily during drilling, and great potential safety hazards are brought to the remote control underwater robot. Therefore, the drilling machine must be designed with corresponding measures to ensure the safety of the remote control underwater robot in the deep sea. The existing deep sea drilling machine is complex in structure, large in size and heavy in weight, and is not suitable for being carried on a remote control underwater robot.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a submarine drilling rig which is small in size, light in weight, low in cost, capable of effectively avoiding drill clamping and bearing higher pressure and suitable for ROV carrying.
In order to solve the technical problems, the invention adopts the following technical scheme:
a submarine drilling rig carried by an ROV (remote operated vehicle) comprises a power device, a shell 5 and a main shaft 11, and is characterized in that: the power device is connected with the main shaft 11 through a gear, the main shaft 11 is driven to drive a drill bit to drill through the power device, the power device is connected with the shell 5 and plays a role of providing rotating torque for the main shaft of the drilling machine, the buffering upright post 4 is arranged above the shell 5, the buffering spring 3 is placed on the mandrel on the upper portion of the buffering upright post 4, the upper portion of the buffering upright post 4 is provided with the upper cross beam 1 capable of moving up and down along the mandrel, the upper end of the buffering spring 3 abuts against the bottom of the upper cross beam 1, the drilling machine is buffered in the feeding process, and the middle of the upper cross beam 1 is connected with the ROV feeding oil cylinder so as to load the drilling machine on the ROV and obtain feeding power simultaneously.
As a further improvement of the technical scheme:
the power device comprises a hydraulic motor a2 and a hydraulic motor b7 and provides rotary power for the main shaft of the drilling machine.
The hydraulic motor a2 is connected with a spline shaft a8 through a spline, the spline shaft a8 is connected with a gear a9 through a flat key, the hydraulic motor b7 is connected with a spline shaft b13 through a spline, the spline shaft b13 is connected with a gear b12 through a flat key, the spline shaft a8 and the spline shaft b13 are connected with the shell 5 through bearings, the gear a9 and the gear b12 are meshed with the gear c10, and the gear c10 is connected with the main shaft 11 through a flat key, so that the drilling machine can realize normal drilling and has the capacity of reversely operating to disconnect the threads connecting the drilling tool and the main shaft 11 and further completing disconnection.
The housing 5 is connected to a pressure compensator 6, and the inside of the pressure compensator 6 communicates with the inside of the housing 5 so that the pressure compensator 6 performs pressure regulation.
The shell 5 passes through bolted connection with pressure compensator 6, shell 5 passes through the sealing washer with pressure compensator 6 is connected the face and seals to guarantee sealing performance, the inside piston that is equipped with of pressure compensator 6, the piston moves along with water pressure change, has compensated lubricating oil because of the volume that the high water pressure compressed, with the internal and external pressure balance of realization.
The shell 5 is connected with the buffering upright post 4 through bolts, and the buffering upright post 4 is symmetrically provided with at least two.
The lower part of the upper crossbeam 1 is provided with a sleeve matched with the mandrel at the upper part of the buffer upright post 4.
The upper cross beam 1 is connected with a connecting flange on an ROV feeding oil cylinder through a bolt.
Compared with the prior art, the invention has the advantages that:
the volume is small, the weight is light, the cost is low, the drill sticking accident can be effectively treated, and the device can bear higher water pressure. Compared with the prior art, the technology uses the buffer upright post 4 and the buffer spring 3 to form the buffer mechanism, so that the buffering of the drilling machine can be realized in the feeding process, and the drill bit blocking accident caused by the mismatching of the feeding speed and the rock cutting speed of the drill bit is avoided; the design of the power device can be used for tripping in case that the drill bit is stuck so as to ensure that the ROV cannot be fixed to the seabed due to the accident of sticking the drill bit, and the power device plays an extremely important role in ensuring the safety of the ROV and greatly reduces the equipment loss; in addition, the drilling machine can bear larger water pressure through the pressure compensator 6 and work in a deeper water area; and the volume is small, the weight is light, the load of the ROV is reduced, or the ROV is carried on a smaller ROV, and the manufacturing cost is lower than that of the prior art.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic view of the ROV-mounted subsea drilling rig of the present invention.
In the figure: 1-upper beam, 2-hydraulic motor a, 3-buffer spring, 4-buffer upright post, 5-shell, 6-pressure compensator, 7-hydraulic motor b, 8-spline shaft a, 9-gear a, 10-gear c, 11-main shaft, 12-gear b, 13-spline shaft b.
Detailed Description
The present invention will be described in further detail below with reference to specific drawings and examples.
Embodiment 1, the present invention includes a power device, a housing 5, a main shaft 11, and is characterized in that: the power device is connected with a main shaft 11 through a gear, the main shaft 11 is driven by the power device to drive a drill bit to drill, the power device is connected with a shell 5 and provides rotating torque for a main shaft of the drilling machine, a buffering upright post 4 is arranged above the shell 5, a buffering spring 3 is placed on a mandrel on the upper portion of the buffering upright post 4, an upper cross beam 1 capable of moving up and down along the mandrel is arranged on the upper portion of the buffering upright post 4, the upper end of the buffering spring 3 abuts against the bottom of the upper cross beam 1, the drilling machine is enabled to buffer in the feeding process, and the middle of the upper cross beam 1 is connected with an ROV feeding oil cylinder to obtain feeding thrust. When the drilling machine works, the piston of the feeding oil cylinder moves downwards to push the drilling machine to feed downwards. The upper cross beam 1, the buffer spring 3 and the buffer upright post 4 jointly form a feeding buffer mechanism, and the buffer mechanism can buffer a drilling machine in the feeding process, so that the phenomenon that a drill bit is blocked due to the fact that the feeding speed of an oil cylinder is not matched with the drilling speed is avoided, and the occurrence of accidents in holes such as drilling blocking is avoided. See fig. 1-3.
Example 2, the present invention also includes the following optimization: the power device comprises a hydraulic motor a2 and a hydraulic motor b7 and provides rotary power for the main shaft of the drilling machine. The hydraulic motor a2 is connected with a spline shaft a8 through a spline, the spline shaft a8 is connected with a gear a9 through a flat key, the hydraulic motor b7 is connected with a spline shaft b13 through a spline, the spline shaft b13 is connected with a gear b12 through a flat key, the spline shaft a8 and the spline shaft b13 are connected with the shell 5 through bearings, the gear a9 and the gear b12 are meshed with the gear c10, and the gear c10 is connected with the main shaft 11 through a flat key, so that the drilling machine can realize normal drilling and has the capability of reverse operation at the same time, namely the capability of disconnecting the threads connecting the drilling tool and the main shaft 11 and further completing the disconnection. During normal drilling, the hydraulic motor a2 drives the gear a9, the gear a9 drives the gear c10 and the gear c10 to drive the main shaft 11 through the spline shaft a8, the gear c10 drives the gear b12, the gear b12 drives the spline shaft b13, the spline shaft b13 drives the hydraulic motor b7, and the hydraulic motor b7 idles and does not output torque. Under the working state, the drilling machine can realize normal drilling; when a drilling accident occurs, a drill bit is clamped by stones in a drill hole, at the moment, a thread connected with the drilling tool and the main shaft 11 needs to be disconnected in a tripping state, the task of disconnecting the thread cannot be guaranteed only by the torque output by one hydraulic motor a2, at the moment, the hydraulic motor a2 and the hydraulic motor b7 work simultaneously, the output rotating directions of the hydraulic motor a2 and the hydraulic motor b 3925 are opposite, at the moment, the torque output by the hydraulic motor a2 and the hydraulic motor b7 is transmitted to the gear a9 and the gear b12 through the spline shaft a8 and the spline shaft b13, the gear a9 and the gear b12 transmit the torque output by the hydraulic motor a2 and the hydraulic motor b7 to the gear c10, the gear c10 transmits the torque to the main shaft 11, and at the moment, the main shaft 11 obtains the torque 2 times of the first working state, so that the thread connected with. Therefore, the broken-out state can ensure that the ROV cannot be fixed to the seabed due to the drill jamming accident, and the broken-out state plays an extremely important role in ensuring the safety of the ROV and can avoid greater equipment loss. Referring to fig. 1-3, the rest refer to example 1.
Example 3, the present invention also includes the following optimization: the utility model discloses a pressure compensator, including shell 5, pressure compensator 6, shell 5 and pressure compensator 6, the inside and 5 intercommunications of shell of pressure compensator 6 to pressure compensator 6 carries out pressure regulation, shell 5 passes through bolted connection with pressure compensator 6, shell 5 passes through the sealing washer with pressure compensator 6 is connected and seals, in order to guarantee sealing performance, the inside piston that is equipped with of pressure compensator 6, the piston moves along with water pressure change, has compensated lubricating oil because of the volume that high water pressure compressed, in order to realize the pressure regulation function. Rig during operation, the inside lubricating oil that has been full of shell 5, the inside piston of pressure compensator 6 separates the inside lubricating oil of sea water and shell 5, when the rig is located the sea level, the inside lubricating oil that is full of pressure compensator 6, the piston is in the one end of keeping away from entablature 1 this moment, when the rig gets into the sea water, along with hydraulic increase, the inside lubricating oil volume of shell 5 is compressed, the inside piston of pressure compensator is to the direction motion of being close to entablature 1, thereby the volume of lubricating oil because of high water pressure compressed has been compensated, the balance of external pressure in the shell 5 has been guaranteed, make shell 5 can not warp under powerful water pressure, normal work of rig in the position of being not more than 5000m water depth can be guaranteed to this structure. Referring to fig. 1-3, the rest of the description refers to the above embodiments.
Example 4, the present invention also includes the following optimization: the shell 5 passes through bolted connection with buffering stand 4, 4 symmetries of buffering stand are provided with two at least, 1 lower part of entablature is equipped with the dabber matched with sleeve with 4 upper portions of buffering stand, entablature 1 is connected through bolt and the flange on the ROV feed cylinder, and overall structure is when more firm, can also realize convenient change damage part, reduces the maintenance cost. Referring to fig. 1-3, the rest of the description refers to the above embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (8)
1. The utility model provides a submarine drilling rig that ROV carried on, it includes power device, shell (5), main shaft (11), its characterized in that: the power device is connected with the main shaft (11) through a gear, the power device is connected with the shell (5), the buffer upright post (4) is arranged above the shell (5), the buffer spring (3) is placed on the mandrel on the upper portion of the buffer upright post (4), the upper portion of the buffer upright post (4) is provided with the upper cross beam (1) capable of moving up and down along the mandrel, the upper end of the buffer spring (3) supports the bottom of the upper cross beam (1), and the middle of the upper cross beam (1) is connected with the ROV feeding oil cylinder.
2. An ROV-mounted seafloor drilling rig according to claim 1, wherein: the power device comprises a hydraulic motor a (2) and a hydraulic motor b (7).
3. An ROV-mounted seafloor drilling rig according to claim 2, wherein: the hydraulic motor a (2) is connected with a spline shaft a (8) through a spline, the spline shaft a (8) is connected with a gear a (9) through a flat key, the hydraulic motor b (7) is connected with a spline shaft b (13) through a spline, the spline shaft b (13) is connected with a gear b (12) through a flat key, the spline shaft a (8) and the spline shaft b (13) are connected with the shell (5) through bearings, the gear a (9) and the gear b (12) are meshed with a gear c (10), and the gear c (10) is connected with a main shaft (11) through a flat key.
4. An ROV-mounted seafloor drilling rig according to claim 1, wherein: the shell (5) is connected with a pressure compensator (6), and the interior of the pressure compensator (6) is communicated with the interior of the shell (5).
5. An ROV-mounted seafloor drilling rig according to claim 4, wherein: the shell (5) is connected with the pressure compensator (6) through bolts, the connection surface of the shell (5) and the pressure compensator (6) is sealed through a sealing ring, and a piston is arranged inside the pressure compensator (6).
6. An ROV-mounted seafloor drilling rig according to claim 1, wherein: the shell (5) is connected with the buffering upright columns (4) through bolts, and at least two buffering upright columns (4) are symmetrically arranged.
7. An ROV-mounted seafloor drilling rig according to claim 1, wherein: the lower part of the upper cross beam (1) is provided with a sleeve matched with a mandrel at the upper part of the buffer upright post (4).
8. An ROV-mounted seafloor drilling rig according to claim 1, wherein: the upper cross beam (1) is connected with a connecting flange on the ROV feeding oil cylinder through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911146173.3A CN110878677A (en) | 2019-11-21 | 2019-11-21 | Submarine drilling rig carried by ROV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911146173.3A CN110878677A (en) | 2019-11-21 | 2019-11-21 | Submarine drilling rig carried by ROV |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110878677A true CN110878677A (en) | 2020-03-13 |
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ID=69730289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911146173.3A Pending CN110878677A (en) | 2019-11-21 | 2019-11-21 | Submarine drilling rig carried by ROV |
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| Country | Link |
|---|---|
| CN (1) | CN110878677A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502667A (en) * | 2020-05-09 | 2020-08-07 | 大连海洋大学 | Autonomous deep sea mining robot |
-
2019
- 2019-11-21 CN CN201911146173.3A patent/CN110878677A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502667A (en) * | 2020-05-09 | 2020-08-07 | 大连海洋大学 | Autonomous deep sea mining robot |
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