CN111140174A - Heavy-calibre hydraulic pressure carousel for deep sea rig - Google Patents
Heavy-calibre hydraulic pressure carousel for deep sea rig Download PDFInfo
- Publication number
- CN111140174A CN111140174A CN202010028052.5A CN202010028052A CN111140174A CN 111140174 A CN111140174 A CN 111140174A CN 202010028052 A CN202010028052 A CN 202010028052A CN 111140174 A CN111140174 A CN 111140174A
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- hydraulic
- rotary table
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- 239000004429 Calibre Substances 0.000 title description 2
- 238000005553 drilling Methods 0.000 claims abstract description 38
- 238000001514 detection method Methods 0.000 claims description 11
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a large-diameter hydraulic rotary table for a deep sea drilling machine, which comprises a base, wherein a hydraulic motor is fixedly connected to the base, an output shaft of the hydraulic motor is connected with one end of an input shaft assembly, the other end of the input shaft assembly is connected with an outer gear of a rotary support in a meshing manner, an inner ring of the rotary support is fixedly connected to the base, and the outer gear of an outer ring of the rotary support is connected with a rotary table in a meshing manner; the hydraulic motor is connected with a hydraulic system, and the hydraulic motor is electrically connected with an electric control system. The invention has the beneficial effects that: the hydraulic turntable is large in opening, and can meet the requirements of lowering a marine riser and supporting the weight of a drill column of a deep sea drilling machine; the hydraulic turntable can detect the output rotating speed and the output torque in real time; single or multiple hydraulic motors can be selected as driving power according to the drilling working conditions; the hydraulic rotary table is controlled by double closed loops, and the output precision of the rotary table is high; the hydraulic turntable is driven by the cylindrical gear, is convenient to process and has low cost.
Description
Technical Field
The invention belongs to the technical field of hydraulic turntables, and relates to a large-caliber hydraulic turntable for a deep sea drilling rig.
Background
At present, with the development of drilling equipment and drilling technology such as top drive and the like, the working conditions of drilling by using a turntable are reduced, and the turntable is mainly used for bearing the weight of all casing strings or drill strings in a well and handling movable drilling tools and the like during drilling accidents when a casing is put in or a drill is put out. The hydraulic turntable is based on a conventional turntable, adopts a hydraulic motor as power, drives the turntable to rotate at a low speed, simultaneously reserves the bearing capacity of the turntable, has the characteristics of small volume and light weight, and meets the use requirements of the conventional turntable.
However, the large-diameter hydraulic rotary table for offshore drilling needs to lower a large-diameter marine riser, the size of the opening of the rotary table is large, the bearing capacity is high, and the conventional rotary table adopts spiral bevel gear transmission, but the spiral bevel gear is large in size, difficult to process or difficult to process, complex in structure and high in cost, and cannot meet the requirements.
Disclosure of Invention
The invention aims to provide a large-caliber hydraulic rotary table for a deep sea drilling rig, and solves the problem that the hydraulic rotary table in the prior art is poor in bearing capacity.
The technical scheme adopted by the invention is that the large-diameter hydraulic rotary table for the deep sea drilling machine comprises a base, wherein a hydraulic motor is fixedly connected to the base, an output shaft of the hydraulic motor is connected with one end of an input shaft assembly, the other end of the input shaft assembly is connected with an outer gear of a rotary support in a meshed manner, an inner ring of the rotary support is fixedly connected to the base, and the outer gear of the outer ring of the rotary support is connected with a rotary table in a meshed manner; the hydraulic motor is connected with a hydraulic system, and the hydraulic motor is electrically connected with an electric control system.
The invention is also characterized in that:
the rotary table is connected with a speed measuring device, and the speed measuring device is electrically connected with an electric control system.
The turntable is connected with a turntable locking device.
The input shaft assembly is connected with an online torque detection system, and the online torque detection system is electrically connected with an electric control system.
The base also comprises an upper cover which forms the appearance of the turntable together with the base.
The base of the hydraulic turntable is of a cast-weld structure and is integrally machined.
The size of the inner bore of the base and the rotary table is determined according to the drilling conditions of the drilling machine and is one of 371/2 inches, 491/2 inches, 691/2 inches or 751/2 inches.
The hydraulic motors and the input shaft assemblies in the hydraulic turntable are the same in number, and the number of the hydraulic motors and the input shaft assemblies is a plurality.
When the hydraulic motors and the input shaft assemblies are multiple, the electric control system can independently control the hydraulic motors to act and can also control the hydraulic motors to act simultaneously.
The invention has the beneficial effects that:
1) the hydraulic turntable is large in opening, and can meet the requirements of lowering a marine riser and supporting the weight of a drill column of a deep sea drilling machine;
2) the hydraulic turntable can detect the output rotating speed and the output torque in real time;
3) single or multiple hydraulic motors can be selected as driving power according to the drilling working conditions;
4) the hydraulic rotary table is controlled by double closed loops, and the output precision of the rotary table is high;
5) the hydraulic turntable is driven by the cylindrical gear, is convenient to process and has low cost.
Drawings
FIG. 1 is a schematic structural diagram of a large-caliber hydraulic rotary table for a deep sea drilling rig according to the invention;
FIG. 2 is an outline view of a large-caliber hydraulic rotary table for a deep sea drilling rig according to the invention.
In the figure, 1, a base, 2, a speed measuring device, 3, a hydraulic motor, 4, a rotary table, 5, an upper cover, 6, a rotary table locking device, 7, an online torque detection system, 8, an input shaft assembly, 9, a rotary support, 10, a hydraulic system and 11, an electric control system are arranged.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a large-caliber hydraulic rotary table for a deep sea drilling machine, which comprises a base 1, wherein the base 1 provides an installation foundation for the hydraulic rotary table, a hydraulic motor 3 is fixedly connected to the base 1, an output shaft of the hydraulic motor 3 is connected with an input shaft assembly 8, the input shaft assembly 8 is in meshing connection with an outer gear of a rotary support 9, an inner ring of the rotary support 9 is fixedly connected to the base 1, the outer gear of the outer ring of the rotary support 9 is in meshing connection with a rotary table 4, and the rotary table 4 is connected with a speed measuring device 2 and used for measuring the rotating speed of the rotary table 4; the turntable locking device 6 is connected with a turntable 4, and the inner aperture size of the turntable 4 is determined according to the drilling working condition of a drilling machine; the input shaft assembly 8 is connected with an online torque detection system 7, the real-time output torque of the turntable is obtained by measuring the deformation of the input shaft assembly,
the hydraulic motor 3 is connected with a hydraulic system 10 for providing a hydraulic source for the hydraulic motor 3, the hydraulic motor 3 is electrically connected with an electric control system 11, the electric control system 11 is also electrically connected with the online torque detection system 7 and the speed measuring device 2 respectively, the speed value and the torque value transmitted in real time through the speed measuring device 2 and the online torque detection system 7 are used as feedback values, and after the feedback values are compared with the instruction values, the updating instruction is adjusted, so that the accurate control of the rotary table is achieved.
The base 1 further comprises an upper cover 5 which forms the appearance of the turntable together with the base 1.
The base 1 of the hydraulic turntable is of a cast-weld structure, and is integrally machined, high in strength and good in stability. The inner hole diameters of the base 1 and the rotary table 4 are determined according to the drilling conditions of the drilling machine, and are designed in series and are 371/2 inches, 491/2 inches, 691/2 inches or 751/2 inches.
The number of the hydraulic motors 3 and the number of the input shaft assemblies 8 in the hydraulic turntable are the same, the number is 1 or more, the hydraulic motors are matched according to the requirements of the deep sea drilling machine, and the hydraulic system 10 and the electric control system 11 are adjusted according to the number. If there are multiple hydraulic motors 3 and input shaft assemblies 8 in the hydraulic rotary table, the electronic control system 11 can control the hydraulic motors 3 to operate individually, or can control multiple hydraulic motors 3 to operate simultaneously.
The main parts of the large-caliber hydraulic turntable for the deep sea drilling machine have the following functions:
the hydraulic motor 3: the power component is a power component of the hydraulic turntable and provides power support for actions such as rotation, stop and the like of the turntable;
an upper cover 5: the upper surface of the hydraulic turntable and the base 1 form the appearance of the turntable together;
the dial lock device 6: the locking device is used for locking the rotary table in a static state, so that the rotary table can bear the maximum reaction torque;
online torque detection system 7: measuring the deformation of the input shaft assembly 8 to obtain the real-time output torque of the turntable;
input shaft assembly 8: the power output by the hydraulic motor 3 is transmitted through the pinion;
the rotary support 9: the inner ring is fixed on the base 1, the outer ring is connected with the rotary table 4, the rotary support 9 is provided with an outer gear ring which is meshed with a pinion on the input shaft assembly 8, so that the rotary table 4 is driven to rotate, and the rotating function of the rotary table is realized;
the hydraulic system 10: a hydraulic source is provided for the hydraulic motor 3, and an execution component of the electronic control system 11 is provided;
the electric control system 11: the 'brain' of the hydraulic turntable realizes various functions of rotation, stop and the like of the turntable by sending various instructions.
The invention relates to a large-caliber hydraulic turntable for a deep sea drilling rig, which comprises the following working processes:
when the hydraulic rotary table needs to rotate forwards, firstly, the rotary table locking device 6 is operated to enable the rotary table to be unlocked, then the electronic control system 11 sends a forward rotation instruction, after the hydraulic system 10 receives the instruction, a hydraulic source is output to the hydraulic motor 3 according to the instruction requirement, the hydraulic motor 3 starts to rotate, so that the input shaft assembly 8 and the hydraulic motor 3 rotate in the same direction, and after the input shaft assembly 3 rotates, the rotary support 9 and the rotary table 4 are driven to rotate, so that the forward rotation function of the rotary table is realized; when the hydraulic rotating disc needs to rotate reversely, the steps are completely consistent with the steps of forward rotation of the hydraulic rotating disc, and only the electronic control system 11 needs to send a reverse rotation instruction.
When the hydraulic turntable needs to block in the forward rotation (or reverse rotation) action, the electric control system 11 sends a blocking instruction, the hydraulic system 10 stops the flow of the hydraulic source after receiving the instruction, and the blocking function of the turntable can be realized, and the hydraulic turntable can bear certain reverse torque in a blocking state; when the hydraulic rotary table stops running after the rotary table rotates forwards (or reversely), the electric control system 11 sends a stop instruction, and the hydraulic system 10 stops the supply of the hydraulic source after receiving the instruction, so that the stop function of the rotary table can be realized.
When the hydraulic rotary table needs to stop and bear large reaction torque, the electric control system 11 sends a stop instruction, the hydraulic system 10 stops and is in an out-of-work state, and then the rotary table locking device 6 is operated to the position of locking the rotary table, so that the rotary table can bear large reaction torque. At this time, the turn table 4 is in a stopped state and cannot be rotated, and at the same time, the hydraulic system 10 cannot be activated in this state.
When the hydraulic rotary table is in a standby state, no matter the hydraulic rotary table is in forward rotation, reverse rotation, hovering or stopping action, the speed measuring device 2 and the online torque detection system 7 are in working states, and the output rotating speed and the output torque of the hydraulic rotary table can be displayed in real time.
The invention discloses a large-caliber hydraulic turntable for a deep sea drilling rig, which has the beneficial effects that: adopt the gyration to support through the carousel, adopt a plurality of or single hydraulic motor as power, drive cylindrical gear carries out the transmission, realizes the carousel action, adopts speed sensor, online torque detection system etc. to realize the double closed-loop control to the carousel simultaneously, has simple structure, the processing of being convenient for, advantage with low costs, easy realization.
Claims (9)
1. A large-diameter hydraulic rotary table for a deep sea drilling machine is characterized by comprising a base (1), wherein a hydraulic motor (3) is fixedly connected to the base (1), an output shaft of the hydraulic motor (3) is connected with one end of an input shaft assembly (8), the other end of the input shaft assembly (8) is connected with an outer gear of a rotary support (9) in a meshed mode, an inner ring of the rotary support (9) is fixedly connected to the base (1), and an outer gear of an outer ring of the rotary support (9) is connected with a rotary table (4) in a meshed mode;
the hydraulic motor (3) is connected with a hydraulic system (10), and the hydraulic motor (3) is electrically connected with an electric control system (11).
2. The large-caliber hydraulic rotary table for the deep sea drilling rig according to claim 1, wherein the rotary table (4) is connected with a speed measuring device (2), and the speed measuring device (2) is electrically connected with an electric control system (11).
3. The large-caliber hydraulic rotary table for the deep sea drilling machine according to claim 1, wherein a rotary table locking device (6) is connected to the rotary table (4).
4. The heavy caliber hydraulic rotary table for the deep sea drilling rig according to claim 1 or 2, wherein the input shaft assembly (8) is connected with an online torque detection system (7), and the online torque detection system (7) is electrically connected with an electric control system (11).
5. The large-caliber hydraulic rotary table for the deep sea drilling machine is characterized in that the base (1) further comprises an upper cover (5) which forms the appearance of the rotary table together with the base (1).
6. The large-caliber hydraulic rotary table for the deep sea drilling machine according to claim 1, wherein a base (1) of the hydraulic rotary table is of a cast-weld structure and is integrally machined.
7. The large-caliber hydraulic rotary table for the deep sea drilling rig according to claim 1, wherein the inner hole diameters of the base (1) and the rotary table (4) are determined according to drilling conditions of the drilling rig and are one of 371/2 inches, 491/2 inches, 691/2 inches and 751/2 inches.
8. The large-caliber hydraulic rotary table for the deep sea drilling machine is characterized in that the number of the hydraulic motors (3) and the number of the input shaft assemblies (8) in the hydraulic rotary table are the same and are several.
9. The deep sea drilling rig large-caliber hydraulic rotary table according to claim 8, wherein when the hydraulic motor (3) and the input shaft assembly (8) are multiple, the electric control system (11) can control the hydraulic motor (3) to operate independently and can also control the hydraulic motors (3) to operate simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028052.5A CN111140174B (en) | 2020-01-10 | 2020-01-10 | Heavy-calibre hydraulic pressure carousel for deep sea rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010028052.5A CN111140174B (en) | 2020-01-10 | 2020-01-10 | Heavy-calibre hydraulic pressure carousel for deep sea rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111140174A true CN111140174A (en) | 2020-05-12 |
| CN111140174B CN111140174B (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010028052.5A Active CN111140174B (en) | 2020-01-10 | 2020-01-10 | Heavy-calibre hydraulic pressure carousel for deep sea rig |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB891030A (en) * | 1957-08-06 | 1962-03-07 | California Research Corp | Multiple-cable tensioning device |
| CN2547954Y (en) * | 2002-03-28 | 2003-04-30 | 成都瑜宏石化工程有限责任公司 | Hydraulic driven turntable |
| CN2649763Y (en) * | 2003-06-06 | 2004-10-20 | 宝鸡石油机械有限责任公司 | Hydraulic rotary table for oil drilling rig |
| CN206319830U (en) * | 2016-12-16 | 2017-07-11 | 洛阳雷斯达传动有限公司 | A kind of pressure balance workover rig hydraulic swivel head |
| CN109632162A (en) * | 2018-12-25 | 2019-04-16 | 西安石油大学 | A kind of super large caliber drilling rotary table torque testing method |
-
2020
- 2020-01-10 CN CN202010028052.5A patent/CN111140174B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB891030A (en) * | 1957-08-06 | 1962-03-07 | California Research Corp | Multiple-cable tensioning device |
| CN2547954Y (en) * | 2002-03-28 | 2003-04-30 | 成都瑜宏石化工程有限责任公司 | Hydraulic driven turntable |
| CN2649763Y (en) * | 2003-06-06 | 2004-10-20 | 宝鸡石油机械有限责任公司 | Hydraulic rotary table for oil drilling rig |
| CN206319830U (en) * | 2016-12-16 | 2017-07-11 | 洛阳雷斯达传动有限公司 | A kind of pressure balance workover rig hydraulic swivel head |
| CN109632162A (en) * | 2018-12-25 | 2019-04-16 | 西安石油大学 | A kind of super large caliber drilling rotary table torque testing method |
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| Publication number | Publication date |
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| CN111140174B (en) | 2021-11-23 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20200928 Address after: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Applicant after: Baoji Oilfield Machinery Co.,Ltd. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Applicant before: Baoji Oilfield Machinery Co.,Ltd. |
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