CN107366643B - Hydraulic control system for marine drilling riser tensioner - Google Patents
Hydraulic control system for marine drilling riser tensioner Download PDFInfo
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- CN107366643B CN107366643B CN201610310256.1A CN201610310256A CN107366643B CN 107366643 B CN107366643 B CN 107366643B CN 201610310256 A CN201610310256 A CN 201610310256A CN 107366643 B CN107366643 B CN 107366643B
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- 238000005553 drilling Methods 0.000 title claims abstract description 32
- 239000003921 oil Substances 0.000 claims abstract description 80
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/01—Risers
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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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/09—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods specially adapted for drilling underwater formations from a floating support using heave compensators supporting the drill string
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a hydraulic control system of a marine drilling riser tensioner, which is applied to the manufacturing industry of marine engineering equipment. The system mainly comprises a horizontal sliding hydraulic oil way, a lifting hydraulic oil way, a horizontal lock pin hydraulic oil way, a sliding lock pin hydraulic oil way, a CTU lock pin oil way, a CTU oil way and an STU oil way. The system uses the minimum hydraulic control components to realize the tensioning and auxiliary locking functions of the riser tensioner, particularly the use of an energy accumulator, and better stores or converts the energy generated by the lifting motion of the self-elevating drilling platform or a drilling ship just like a hydraulic air spring maintains the stability of the tensioning force, thereby providing higher safe use guarantee for the riser tensioner, improving the working efficiency, enhancing the safe, stable and reliable work of the system, and greatly reducing the production and manufacturing cost.
Description
Technical Field
The invention belongs to the manufacturing industry of marine equipment.
Background
With the further increase of the marine oil and gas exploration strength in China, the research on the drilling riser tensioner used for the self-elevating drilling platform or the drilling ship system has important practical significance for improving the marine drilling service level in China. The application and technological innovation of marine drilling riser tensioners has been developed with the technological development of jack-up rigs or drill ships. The marine drilling riser tensioner is a key device on a self-elevating drilling platform or a drilling ship, is used for mounting and connecting the drilling riser and the self-elevating drilling platform or the drilling ship, and mainly has the function of establishing a top constant tension system for the drilling riser, so that when a production device on the self-elevating drilling platform or the drilling ship swings along with waves and wind, the riser tensioner can play the role of a pre-tightening spring, protect the riser and eliminate the heave movement of the self-elevating drilling platform or the drilling ship relative to the drilling riser.
The riser tensioning system provides vertical tension to the top of the riser, well controls stress and displacement of the riser, and can keep the tension of the riser basically constant under the condition that the self-elevating drilling platform or a drilling ship does vertical and horizontal movement.
Disclosure of Invention
The invention is used for solving the problem of a hydraulic control system of an ocean riser tensioner, and consists of two hydraulic control systems, namely a riser tensioner system and a sliding plate control system, and mainly comprises a horizontal sliding hydraulic oil way, a lifting hydraulic oil way, a horizontal lock pin hydraulic oil way, a sliding plate lock pin hydraulic oil way, a CTU lock pin oil way, a CTU oil way and an STU oil way.
The riser tensioner system is shown in a figure 1 and mainly comprises a CTU (computer-controlled unit) oil cylinder 1, a pressure sensor, an energy accumulator 3, a safety valve 4, an explosion-proof electromagnetic reversing cartridge valve 5, a first explosion-proof electromagnetic reversing valve 6, a throttle valve 7, a first stop valve 8, a first pressure gauge 9, an explosion-proof proportional pressure reducing valve 10, a first check valve 11, a second stop valve 12, an STU oil cylinder 23, a stop reversing valve, a second check valve 15 and a first filter 28 with an optical pressure difference indicator. The hydraulic pump provides power oil, and after being filtered by a first filter 28 with an optical pressure difference indicator, the power oil is triggered by a cut-off reversing valve to be communicated with a second one-way valve 15 to supply oil to a main oil path.
The skateboard control system is shown in figure 2. The device mainly comprises a sliding oil cylinder 17, a lifting oil cylinder 18, a horizontal lock pin oil cylinder 19, a sliding plate lock pin oil cylinder 20, a CTU lock pin oil cylinder 21, a balance valve 22, a first displacement sensor 23, a second explosion-proof electromagnetic reversing valve 24, a third stop valve 25, a third check valve 26, a second filter 27 with an optical differential pressure indicator, a two-way pressure reducing valve 34, a second pressure gauge 29, a pressure reducing valve 30, an explosion-proof valve 31, a second displacement sensor 32 and a stop type reversing valve 33. The hydraulic pump supplies power oil, after being filtered by a second filter 27 with an optical differential pressure indicator, the power oil is started to be communicated with a third one-way valve 26 through a stop type reversing valve 33 to supply oil to a main oil way. The sliding oil cylinder 17, the lifting oil cylinder 18, the horizontal lock pin oil cylinder 19, the sliding plate lock pin oil cylinder 20 and the CTU lock pin oil cylinder 21 are all controlled to move through a single second explosion-proof electromagnetic directional valve 24.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic diagram of a riser tensioner system in a marine drilling riser tensioner hydraulic control system of the present invention, and fig. 2 is a schematic diagram of a slide plate control system in a marine drilling riser tensioner hydraulic control system of the present invention.
Detailed Description
The CTU cylinder in the riser tensioner system directly controls the tensioning action of the CTU cylinder 1 through the first explosion-proof electromagnetic directional valve 6 through the explosion-proof proportional pressure reducing valve 10. And the other path of the energy storage device is used for storing energy for the energy storage device 3 through an explosion-proof electromagnetic directional cartridge valve 5. When the hydraulic pump stops supplying oil, the accumulator 3 maintains pressure for the CTU cylinder 1 by opening the second stop valve 12, thereby realizing the real-time adjustment tensioning function of the casing tensioner. And the CTU oil cylinders 1 are symmetrically arranged, so that the aim of centering the marine riser is better fulfilled.
After the hydraulic pump supplies oil to the main oil circuit in the slide plate control system, the lifting and falling actions of the lifting oil cylinder 18 are realized through the second explosion-proof electromagnetic directional valve 24, and the slide plate box frame is lifted or descended to a required position. Then the horizontal lock pin oil cylinder 19 fixes the sliding plate box frame through a second explosion-proof electromagnetic directional valve 24. Then the sliding oil cylinder 17 realizes the stretching action of the skateboard box through the second explosion-proof electromagnetic directional valve 24, and after the skateboard box is stretched to the required position, the skateboard lock pin oil cylinder 20 locks the skateboard box through the explosion-proof electromagnetic directional valve 24. Meanwhile, the CTU lock pin oil cylinder 21 also locks the casing tension system platform through a second explosion-proof electromagnetic directional valve 24.
In the horizontal sliding hydraulic oil circuit, the oil quantity of the rodless cavity at the same side is adjusted through the first displacement sensor 23, so that the synchronism of the sliding plate box in the moving process is realized, and the control precision is greatly improved. In the lift hydraulic pressure oil circuit, adjust the size of homonymy rodless chamber oil mass through first displacement sensor 23, realize promoting or descending whole locker platform in-process synchronism, but probably there is too big load at the promotion in-process, therefore explosion-proof valve 31 use better protection the oil circuit to whether the oil pressure is too high through the convenient in time discovery oil circuit of external second manometer 29.
It should be understood that the detailed description of the present invention is only for illustrating the present invention and is not the first technical solution described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or substituted by equivalent methods to achieve the same technical effects; so long as the requirements of the invention are met, the invention is within the protection scope.
Claims (6)
1. The utility model provides a marine drilling riser tensioning ware hydraulic control system, includes two big hydraulic control systems of riser tensioning ware system and slide control system which characterized in that: the marine riser tensioner system comprises a CTU (China railway) oil cylinder (1), a pressure sensor, an energy accumulator (3), a safety valve (4), an explosion-proof electromagnetic reversing cartridge valve (5), a first explosion-proof electromagnetic reversing valve (6), a throttle valve (7), a first stop valve (8), a first pressure gauge (9), an explosion-proof proportional pressure reducing valve (10), a first check valve (11), a second stop valve (12), an STU (standard deviation) oil cylinder (23), a stop reversing valve, a second check valve (15) and a first filter (28) with an optical pressure difference indicator; the CTU oil cylinder (1) is respectively connected with an explosion-proof electromagnetic reversing cartridge valve (5) and a first explosion-proof electromagnetic reversing valve (6) through pipelines, four groups of energy accumulators (3), four groups of second stop valves (12) and four safety valves (4) are arranged on the pipeline between the CTU oil cylinder (1) and the explosion-proof electromagnetic reversing cartridge valve (5) and respectively correspond to the four pairs of CTU oil cylinders (1), the first explosion-proof electromagnetic reversing valve (6) is connected with an explosion-proof proportional pressure reducing valve (10), the explosion-proof proportional pressure reducing valve (10) is connected with a first pressure gauge (9) through a first stop valve (8), the explosion-proof proportional pressure reducing valve (10) is connected with a pressure oil inlet P, and a filter (27) and a first filter (28) with an optical pressure difference indicator are further arranged on the pipeline between the explosion-proof proportional pressure reducing valve (10) and the pressure oil inlet P; the filter (27) is controlled by a third one-way valve (26), after hydraulic oil enters the system, the pressure of the hydraulic oil entering the CTU oil cylinder and the STU oil cylinder is controlled by two explosion-proof proportional pressure reducing valves (10), the first explosion-proof electromagnetic directional valve (6) is used for controlling the actions of the CTU oil cylinder (1) and the STU oil cylinder (23), each group of explosion-proof electromagnetic directional cartridge valves (5) controls one pair of CTU oil cylinders (1), and the four groups of explosion-proof electromagnetic directional cartridge valves (5) control 8 CTU oil cylinders (1) in total.
2. The marine drilling riser tensioner hydraulic control system of claim 1, wherein: the sliding plate control system mainly comprises a sliding oil cylinder (17), a lifting oil cylinder (18), a horizontal lock pin oil cylinder (19), a sliding plate lock pin oil cylinder (20), a CTU lock pin oil cylinder (21), a balance valve (22), a first displacement sensor (23), a second explosion-proof electromagnetic directional valve (24), a third stop valve (25), a third one-way valve (26), a second filter (27) with an optical differential pressure indicator, a two-way pressure reducing valve (34), a second pressure gauge (29), a pressure reducing valve (30), an explosion-proof valve (31), a second displacement sensor (32), a stop type directional valve (33), the sliding plate lock pin oil cylinder (20) and the CTU lock pin oil cylinder (21) control the movement of the oil cylinders through the independent second explosion-proof electromagnetic directional valve (24), two pairs of sliding oil cylinders (17) are respectively controlled by the two second explosion-proof electromagnetic directional valves (24), and pipelines between each pair of the lifting oil cylinder (18) and the second explosion-proof electromagnetic directional valve (24) are connected with the explosion-proof valve (31), The automatic control system comprises a first displacement sensor (23), a balance valve (22) and a two-way pressure reducing valve (34), wherein two pairs of horizontal lock pin oil cylinders (19) are controlled by two second explosion-proof electromagnetic directional valves (24), a middle pipeline does not have other valve blocks, two pairs of sliding plate lock pin oil cylinders (20) are controlled by two second explosion-proof electromagnetic directional valves (24), a middle pipeline does not have other valve blocks, a second explosion-proof electromagnetic directional valve (24) is connected to a pipeline between a CTU lock pin oil cylinder (21) and the pressure reducing valve (30), a second pressure gauge (29) is connected with the two-way pressure reducing valve (34), and a third stop valve (25) is arranged in the middle of the pipeline connected with the CTU lock pin oil.
3. The marine drilling riser tensioner hydraulic control system of claim 2, wherein: after the hydraulic pump supplies oil to the main oil way in the sliding plate control system, the lifting and falling actions of the lifting oil cylinder (18) are realized through the second explosion-proof electromagnetic directional valve (24), and the sliding plate box frame is lifted or descended to a required position.
4. The marine drilling riser tensioner hydraulic control system of claim 2, wherein: the horizontal lock pin oil cylinder fixes the sliding plate box frame through a second explosion-proof electromagnetic directional valve (24), and the sliding oil cylinder (17) realizes the stretching action of the sliding plate box through the second explosion-proof electromagnetic directional valve (24).
5. The marine drilling riser tensioner hydraulic control system of claim 2, wherein: the sliding plate lock pin oil cylinder locks the sliding plate box through a second explosion-proof electromagnetic directional valve (24); and the CTU lock pin oil cylinder (21) locks the casing tension system platform through a second explosion-proof electromagnetic directional valve (24).
6. The marine drilling riser tensioner hydraulic control system of claim 2, wherein: the first displacement sensor (23) is used for adjusting the oil quantity of the rodless cavity on the same side; the explosion-proof valve (31) protects an oil path; and a second pressure gauge (29) is externally connected to timely find whether the oil pressure of the oil way is too high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310256.1A CN107366643B (en) | 2016-05-12 | 2016-05-12 | Hydraulic control system for marine drilling riser tensioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610310256.1A CN107366643B (en) | 2016-05-12 | 2016-05-12 | Hydraulic control system for marine drilling riser tensioner |
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| Publication Number | Publication Date |
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| CN107366643A CN107366643A (en) | 2017-11-21 |
| CN107366643B true CN107366643B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610310256.1A Active CN107366643B (en) | 2016-05-12 | 2016-05-12 | Hydraulic control system for marine drilling riser tensioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110513055B (en) * | 2018-05-22 | 2021-01-15 | 中国石油大学(华东) | Hybrid marine riser tensioner device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7458425B2 (en) * | 2004-09-01 | 2008-12-02 | Anadarko Petroleum Corporation | System and method of installing and maintaining an offshore exploration and production system having an adjustable buoyancy chamber |
| US7628224B2 (en) * | 2007-04-30 | 2009-12-08 | Kellogg Brown & Root Llc | Shallow/intermediate water multipurpose floating platform for arctic environments |
| CN102241371B (en) * | 2011-03-31 | 2013-07-17 | 武汉理工大学 | Hydraulic system applied to multi-spud leg lifting mechanism |
| EP2766558B1 (en) * | 2011-10-07 | 2017-11-22 | LORD Corporation | Riser tensioner system for off shore oil platforms and petroleum production processes |
| CN102635319A (en) * | 2012-04-12 | 2012-08-15 | 宝鸡石油机械有限责任公司 | Direct hydraulic cylinder type offshore drilling riser tensioning system |
| CN105090146B (en) * | 2015-08-19 | 2017-09-29 | 广东精铟海洋工程股份有限公司 | Riser pipe tensioning apparatus hydraulic system |
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| CN107366643A (en) | 2017-11-21 |
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Effective date of registration: 20230802 Address after: Room 902, Building 5, Nanqiao Exploration Community, Baota District, Yan'an City, Shaanxi Province, 716000 Patentee after: Yan'an Huafeng Oil and Gas Engineering Technology Service Co.,Ltd. Address before: 124010 Pipe Corridor Street of Hi-tech Industrial Park, Xinglongtai District, Panjin City, Liaoning Province Patentee before: LIAONING PETROLEUM EQUIPMENT INSTITUTE CO.,LTD. |
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