CN111561282A - Core cutting device for natural gas hydrate under-pressure transfer system - Google Patents
Core cutting device for natural gas hydrate under-pressure transfer system Download PDFInfo
- Publication number
- CN111561282A CN111561282A CN202010381657.2A CN202010381657A CN111561282A CN 111561282 A CN111561282 A CN 111561282A CN 202010381657 A CN202010381657 A CN 202010381657A CN 111561282 A CN111561282 A CN 111561282A
- Authority
- CN
- China
- Prior art keywords
- core
- outer pipe
- cutting device
- flange
- natural gas
- 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.)
- Granted
Links
- 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 title claims abstract description 29
- 238000012546 transfer Methods 0.000 title claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 32
- 238000012544 monitoring process Methods 0.000 claims abstract description 21
- 239000011435 rock Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 29
- 239000000523 sample Substances 0.000 claims description 10
- 235000019687 Lamb Nutrition 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 239000012267 brine Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- -1 natural gas hydrates Chemical class 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
- E21B25/10—Formed core retaining or severing means
-
- 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
Landscapes
- 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)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a rock core cutting device for a natural gas hydrate under-pressure transfer system, which is a relevant component of the natural gas hydrate under-pressure transfer system, wherein the right side of the rock core cutting device is connected with a rock core pipe under pressure through a ball valve; the core cutting device comprises an outer pipe assembly, a guillotine mechanism, a monitoring mechanism, a catcher, a core and a core liner pipe, wherein the outer pipe assembly is of a hollow tubular structure and is used for accommodating the core and the core liner pipe, and the core is positioned in the core liner pipe; the catcher is positioned inside the outer pipe assembly and used for catching the core liner pipe; the guillotine mechanism is positioned in the direction vertical to the central axis of the outer pipe assembly and is used for cutting the rock core and the rock core liner pipe; the monitoring mechanism is positioned at the pipe wall of the outer pipe assembly and is used for monitoring pictures inside the outer pipe assembly, displaying and storing the pictures. The core cutting device is simple in structure, visual in operation, capable of achieving accurate positioning and rapid cutting and small in core disturbance.
Description
Technical Field
The invention belongs to the technical field of natural gas hydrate development, and particularly relates to a core cutting device for a natural gas hydrate pressure transfer system.
Background
The natural gas hydrate is also called as combustible ice, and is an ice-like crystalline substance formed by natural gas and water under high pressure and low temperature conditions and distributed in deep sea sediments or permafrost in land areas. It is also called "combustible ice" because it looks like ice and burns when exposed to fire. The resource density is high, the global distribution is wide, and the resource value is extremely high, so the method becomes a long-term research hotspot in the oil and gas industry.
Natural gas hydrate is a high-quality and high-efficiency fuel. Since the 21 st century, exploration, development and utilization of natural gas hydrates have become the focus of global competition, research and realization of effective collection of natural gas, and have great economic and strategic significance for China. The natural gas hydrate can only exist stably in high-pressure and low-temperature environments, in-situ formation parameter testing is difficult to perform under the prior art conditions, and at present, the common practice at home and abroad is to obtain a hydrate formation core by drilling and coring and then test and analyze the physical, chemical and mechanical property parameters of the hydrate formation core. Both the drilling and coring process and the surface hydrate coring system must be performed in a high pressure environment because the hydrates break down as the pressure is reduced when the hydrates are removed from the formation to the surface.
At present, the problems and difficulties existing in the prior art include:
the natural gas hydrate pressurized transfer system is an important tool for researching hydrate performance parameters, at present, products of a few foreign units are relatively mature, the research of the natural gas hydrate pressurized transfer system in China is late, and at present, no relatively mature pressurized transfer system exists. The core cutting device is one of key components of a natural gas hydrate under-pressure transfer system, a core liner and a core need to be cut simultaneously in a very high hydraulic environment, and the main technical difficulties are the sealing of the cutting device, the rapid and accurate cutting of the liner and the core and the like. Due to the fact that the pressure of the under-pressure transfer system is high, the core cutting device of the under-pressure transfer system is very difficult to achieve.
Disclosure of Invention
Aiming at the problems and difficulties in the prior art, the invention provides the core cutting device for the natural gas hydrate under-pressure transfer system, which can realize the rapid and accurate cutting of the liner tube and the core, and has the advantages of simple structure and convenient operation.
Therefore, the invention adopts the following technical scheme:
a core cutting device for a natural gas hydrate under-pressure transfer system is a related component of the natural gas hydrate under-pressure transfer system, and the right side of the core cutting device is connected with a core tube under pressure through a ball valve; the core cutting device comprises an outer pipe assembly, a guillotine mechanism, a monitoring mechanism, a catcher, a core and a core liner pipe, wherein the outer pipe assembly is of a hollow tubular structure and is used for accommodating the core and the core liner pipe, and the core is positioned in the core liner pipe; the catcher is positioned inside the outer pipe assembly and used for catching the core liner pipe; the guillotine mechanism is positioned in the direction vertical to the central axis of the outer pipe assembly and is used for cutting the rock core and the rock core liner pipe; the monitoring mechanism is positioned at the pipe wall of the outer pipe assembly and is used for monitoring pictures inside the outer pipe assembly, displaying and storing the pictures.
Furthermore, the outer pipe assembly mainly comprises a left outer pipe, a left flange, a right flange and a right outer pipe, and a circular central channel is formed inside the outer pipe assembly and used for accommodating a rock core and a rock core liner pipe; the interior of the central channel is filled with high-pressure saline water; the left outer pipe and the left flange are connected through a first connector clamp, and a first sealing gasket is arranged between the left outer pipe and the left flange; the right flange is connected with the right outer pipe through a second connector clamp, and a second sealing gasket is arranged between the right flange and the right outer pipe; the left flange and the right flange are connected through bolts, and a third sealing gasket is arranged between the left flange and the right flange.
Preferably, the left flange and the right flange are the same in shape and are both a combination of a circle and a square; the part of the left flange connected with the left outer pipe is circular, the part of the right flange connected with the right outer pipe is circular, and the part of the left flange connected with the right flange is square; the square portion has a cross-sectional dimension greater than a cross-sectional dimension of the circular portion.
Preferably, the number of the bolts is 10, and the bolts are symmetrically arranged along the center line of the square.
Preferably, the guillotine mechanism is mounted on the left flange; the guillotine mechanism mainly comprises a third screw, a guillotine guide rail, a guillotine fastening screw, an O-shaped sealing ring, a first screw, an electric push rod bracket, a second screw and an electric push rod fixing screw; the guillotine guide rail is fixed on the left flange through a third screw, the guillotine is fixed on a telescopic shaft of the electric push rod through a guillotine fastening screw, and the guillotine is constrained in the guillotine guide rail and can only run in the guillotine guide rail; the O-shaped sealing ring is sleeved on the telescopic shaft of the electric push rod and is compressed by the first screw to play a role in sealing; the electric push rod is fixed on the electric push rod support through an electric push rod fixing screw, and the electric push rod support is fixed on the upper end face of the left flange through a second screw.
Preferably, the monitoring mechanism is mounted on the right flange; the monitoring mechanism mainly comprises a fourth sealing gasket, a lamb plate, a hollow screw, an endoscope probe and an endoscope host; the lower part of the palm plate is provided with a fourth sealing gasket, and the upper part of the palm plate is tightly pressed by a hollow screw, so that the effects of sealing and perspective are achieved; the endoscope probe is arranged inside the hollow screw and is used for observing the internal condition of the flange through the Perm plate; the endoscope probe is connected with the endoscope host machine through a lead, and the endoscope host machine is used for displaying and storing observed pictures.
Preferably, the lamb plate is made of a high-strength and high-transparency non-metallic material.
Preferably, the core liner has a length of about 2m, and scale marks indicating the length are marked on the outer side of the core liner.
Compared with the prior art, the invention has the beneficial effects that:
(1) an internal monitoring mechanism is arranged, so that the internal condition of the system can be clearly seen.
(2) And the combination of an internal monitoring mechanism and scales on the core liner can realize accurate positioning cutting.
(3) The mining and cutting electric push rod is simple in structure and convenient to operate.
(4) The positioning is accurate, the cutting is rapid, and the disturbance to the rock core is small.
Drawings
Fig. 1 is a schematic structural composition diagram of a core cutting device for a natural gas hydrate pressurized transfer system provided by the invention.
Fig. 2 is a sectional view a-a of fig. 1.
Description of reference numerals: 1. a left outer tube; 2. a catcher; 3. a core liner tube; 4. a core; 5. a first connector clip; 6. a first gasket; 7. a guillotine; 8. a guillotine fastening screw; 9. a left flange; 10. an O-shaped sealing ring; 11. a first screw; 12. an electric push rod bracket; 13. the electric push rod fixes the screw; 14. a third gasket; 15. an endoscope host; 16. an endoscopic probe; 17. a cannulated screw; 18. a perm plate; 19. a fourth gasket; 20. a right flange; 21. a bolt; 22. a second connector clip; 23. a second gasket; 24. a right outer tube; 25. high pressure brine; 26. an electric push rod; 27. a second screw; 28. a guillotine guide rail; 29. and a third screw.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are provided for illustration only and are not to be construed as limiting the invention.
As shown in fig. 1 and 2, the invention discloses a core cutting device for a natural gas hydrate pressure transfer system, which is a relevant component of the natural gas hydrate pressure transfer system, and the right side of the core cutting device is connected with a pressure core pipe through a ball valve; the core cutting device comprises an outer pipe assembly, a guillotine mechanism, a monitoring mechanism, a catcher 2, a core 4 and a core liner 3, wherein the outer pipe assembly is of a hollow tubular structure and is used for accommodating the core 4 and the core liner 3, and the core 4 is positioned in the core liner 3; the catcher 2 is positioned inside the outer pipe assembly and used for catching the core liner pipe 3; the guillotine mechanism is positioned in the direction vertical to the central axis of the outer pipe assembly and is used for cutting the rock core 4 and the rock core liner pipe 3; the monitoring mechanism is positioned at the pipe wall of the outer pipe assembly and is used for monitoring pictures inside the outer pipe assembly, displaying and storing the pictures.
Specifically, the outer pipe assembly mainly comprises a left outer pipe 1, a left flange 9, a right flange 20 and a right outer pipe 24, and a circular central passage is formed inside the outer pipe assembly and used for accommodating a rock core 4 and a rock core liner pipe 3; the interior of the central channel is filled with high pressure brine 25; the left outer pipe 1 and the left flange 9 are connected through a first connector hoop 5, and a first sealing gasket 6 is arranged between the left outer pipe 1 and the left flange; the right flange 20 and the right outer pipe 24 are connected through a second joint hoop 22, and a second sealing gasket 23 is arranged between the right flange and the right outer pipe; the left flange 9 and the right flange 20 are connected through a bolt 21, and a third sealing gasket 14 is arranged between the left flange and the right flange.
Specifically, the left flange 9 and the right flange 20 are the same in shape and are both a combination of a circle and a square; the part of the left flange 9 connected with the left outer pipe 1 is circular, the part of the right flange 20 connected with the right outer pipe 24 is circular, and the part of the left flange 9 connected with the right flange 20 is square; the square portion has a cross-sectional dimension greater than a cross-sectional dimension of the circular portion.
Specifically, the number of the bolts 21 is 10 in total, and the bolts are symmetrically arranged along the center line of the square.
Specifically, the guillotine mechanism is mounted on the left flange 9; the guillotine mechanism mainly comprises a third screw 29, a guillotine guide rail 28, a guillotine 7, a guillotine fastening screw 8, an O-shaped sealing ring 10, a first screw 11, an electric push rod 26, an electric push rod bracket 12, a second screw 27 and an electric push rod fixing screw 13; the fodder chopper guide rail 28 is fixed on the left flange 9 through a third screw 29, the fodder chopper 7 is fixed on a telescopic shaft of the electric push rod 26 through a fodder chopper fastening screw 8, and the fodder chopper 7 is constrained in the fodder chopper guide rail 28 and can only run in the fodder chopper guide rail 28; the O-shaped sealing ring 10 is sleeved on the telescopic shaft of the electric push rod 26 and is pressed tightly by the first screw 11 to play a sealing role; the electric push rod 26 is fixed on the electric push rod bracket 12 through the electric push rod fixing screw 13, and the electric push rod bracket 12 is fixed on the upper end surface of the left flange 9 through the second screw 27.
Specifically, the monitoring mechanism is mounted on the right flange 20; the monitoring mechanism mainly comprises a fourth sealing gasket 19, a lamb plate 18, a hollow screw 17, an endoscope probe 16 and an endoscope host 15; the lower part of the palm plate 18 is provided with a fourth sealing gasket 19, and the upper part is pressed tightly through a hollow screw 17 to play a role in sealing and perspective; the endoscope probe 16 is arranged inside the hollow screw 17 and is used for observing the inside condition of the flange through the Perm plate 18; the endoscope probe 16 is connected to the endoscope main unit 15 through a wire, and the endoscope main unit 15 is used for displaying and storing a picture to be observed.
Specifically, the lamb plate 18 is made of a high-strength and high-transparency non-metallic material.
Specifically, the core liner 3 has a length of about 2m, and scale marks indicating the length are marked on the outer side of the core liner.
Examples
A core cutting device for a natural gas hydrate under-pressure transfer system is shown in figures 1 and 2. The device comprises an outer pipe assembly, a guillotine mechanism, a monitoring mechanism, a catcher 2, a rock core 4, a rock core liner pipe 3 and the like.
The core cutting device is a key component of a natural gas hydrate pressure transfer system, and the right side of the core cutting device is connected with a pressure core pipe through a ball valve (the ball valve and the core pipe are not shown in figure 1).
All parts are mounted according to figure 1 and the electric push rod 26 is operated to bring the guillotine 7 to the uppermost position. And maintaining the pressure of the system, opening a ball valve connected with the right side of the core cutting device, enabling the catcher 2 to enter the core tube after passing through the ball valve, grabbing the core liner tube 3, slowly dragging the core liner tube 3 and the core 4 in the liner tube into the inner cavity of the core cutting device, stopping the movement of the catcher 2 and closing the ball valve after the core liner tube 3 completely enters the inner cavity of the core cutting device.
Subsequently, the catcher 2 continues to drag the core liner 3 to move slowly, at this time, the relative position of the guillotine 7 and the scale on the core liner 3 is observed by opening the endoscope, and when the guillotine 7 reaches the position to be cut, the catcher 2 stops moving. At this time, the electric push rod 26 is started, the telescopic shaft of the electric push rod 26 moves downwards, the guillotine 7 is driven to run in the guillotine guide rail 28, and the core liner tube 3 and the inner core 4 are cut. The telescopic shaft of the electric push rod 26 is provided with a mark, and when the mark is flush with the upper end face of the first screw 11, the electric push rod 26 is closed, and the guillotine 7 stops moving. According to the calculated signature, the guillotine 7 can now completely sever the core liner 3 and its inner core 4.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and scope of the present invention are intended to be covered thereby.
Claims (8)
1. The utility model provides a rock core cutting device for natural gas hydrate area is pressed and is shifted system which characterized in that: the core cutting device is a related component of a natural gas hydrate under-pressure transfer system, and the right side of the core cutting device is connected with a core tube under pressure through a ball valve; the core cutting device comprises an outer pipe assembly, a guillotine mechanism, a monitoring mechanism, a catcher (2), a core (4) and a core liner (3), wherein the outer pipe assembly is of a hollow tubular structure and is used for accommodating the core (4) and the core liner (3), and the core (4) is positioned in the core liner (3); the catcher (2) is positioned inside the outer pipe assembly and used for catching the core liner pipe (3); the guillotine mechanism is positioned in the direction vertical to the central axis of the outer pipe assembly and is used for cutting the rock core (4) and the rock core liner pipe (3); the monitoring mechanism is positioned at the pipe wall of the outer pipe assembly and is used for monitoring pictures inside the outer pipe assembly, displaying and storing the pictures.
2. The core cutting device for the natural gas hydrate under-pressure transfer system according to claim 1, wherein: the outer pipe assembly mainly comprises a left outer pipe (1), a left flange (9), a right flange (20) and a right outer pipe (24), and a circular central channel is formed inside the outer pipe assembly and used for accommodating a rock core (4) and a rock core liner pipe (3); the interior of the central channel is filled with high-pressure saline (25); the left outer pipe (1) is connected with the left flange (9) through a first connector hoop (5), and a first sealing gasket (6) is arranged between the left outer pipe and the left flange; the right flange (20) is connected with the right outer pipe (24) through a second joint hoop (22), and a second sealing gasket (23) is arranged between the right flange and the right outer pipe; the left flange (9) and the right flange (20) are connected through bolts (21), and a third sealing gasket (14) is arranged between the left flange and the right flange.
3. The core cutting device for the natural gas hydrate under-pressure transfer system according to claim 2, wherein: the left flange (9) and the right flange (20) are the same in shape and are both a combination of a circle and a square; the part of the left flange (9) connected with the left outer pipe (1) is circular, the part of the right flange (20) connected with the right outer pipe (24) is circular, and the part of the left flange (9) connected with the right flange (20) is square; the square portion has a cross-sectional dimension greater than a cross-sectional dimension of the circular portion.
4. The core cutting device for the natural gas hydrate under-pressure transfer system according to claim 3, wherein: the number of the bolts (21) is 10, and the bolts are symmetrically arranged along the center line of the square.
5. The core cutting device for the natural gas hydrate under-pressure transfer system according to claim 2, wherein: the guillotine mechanism is arranged on the left flange (9); the guillotine mechanism mainly comprises a third screw (29), a guillotine guide rail (28), a guillotine (7), a guillotine fastening screw (8), an O-shaped sealing ring (10), a first screw (11), an electric push rod (26), an electric push rod bracket (12), a second screw (27) and an electric push rod fixing screw (13); the fodder chopper guide rail (28) is fixed on the left flange (9) through a third screw (29), the fodder chopper (7) is fixed on a telescopic shaft of the electric push rod (26) through a fodder chopper fastening screw (8), and the fodder chopper (7) is constrained in the fodder chopper guide rail (28) and can only run in the fodder chopper guide rail (28); the O-shaped sealing ring (10) is sleeved on a telescopic shaft of the electric push rod (26) and is pressed tightly by the first screw (11) to play a role in sealing; the electric push rod (26) is fixed on the electric push rod support (12) through an electric push rod fixing screw (13), and the electric push rod support (12) is fixed on the upper end face of the left flange (9) through a second screw (27).
6. The core cutting device for the natural gas hydrate under-pressure transfer system according to claim 2, wherein: the monitoring mechanism is mounted on the right flange (20); the monitoring mechanism mainly comprises a fourth sealing gasket (19), a palm plate (18), a hollow screw (17), an endoscope probe (16) and an endoscope host (15); the lower part of the palm plate (18) is provided with a fourth sealing gasket (19), and the upper part of the palm plate is compressed by a hollow screw (17) to play a role in sealing and perspective; the endoscope probe (16) is arranged inside the hollow screw (17) and is used for observing the inside condition of the flange through the Perm plate (18); the endoscope probe (16) is connected with the endoscope main machine (15) through a lead, and the endoscope main machine (15) is used for displaying and storing observed pictures.
7. The core cutting device for the natural gas hydrate under-pressure transfer system according to claim 6, wherein: the lamb plate (18) is made of high-strength and high-transparency non-metallic materials.
8. The core cutting device for the natural gas hydrate under-pressure transfer system according to any one of claims 1 to 7, wherein: the core liner tube (3) is about 2m long, and scale marks for indicating the length are marked on the outer side of the core liner tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381657.2A CN111561282B (en) | 2020-05-08 | 2020-05-08 | Core cutting device for natural gas hydrate under-pressure transfer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010381657.2A CN111561282B (en) | 2020-05-08 | 2020-05-08 | Core cutting device for natural gas hydrate under-pressure transfer system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111561282A true CN111561282A (en) | 2020-08-21 |
| CN111561282B CN111561282B (en) | 2021-02-09 |
Family
ID=72067982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010381657.2A Expired - Fee Related CN111561282B (en) | 2020-05-08 | 2020-05-08 | Core cutting device for natural gas hydrate under-pressure transfer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111561282B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565459A (en) * | 2021-07-29 | 2021-10-29 | 广东石油化工学院 | Natural gas hydrate rock core shifts and device of saving |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005006039A1 (en) * | 2005-02-07 | 2006-08-10 | Friedrich Abegg | Sediment core sub-sampling device for e.g. exploration of sea, has core liner sealed to pressure chamber housing by lip seal, so that increase in pressure pushes piston to hydraulically move sediment core in to transfer line |
| CN202882823U (en) * | 2012-10-10 | 2013-04-17 | 中国石油集团长城钻探工程有限公司 | Sealing and cutting device of well mouth rock core |
| CN203626674U (en) * | 2013-11-19 | 2014-06-04 | 中国石油集团长城钻探工程有限公司 | Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting |
| CN108761023A (en) * | 2018-05-24 | 2018-11-06 | 大连理工大学 | A kind of sea bed gas hydrate core boat-carrying multifunctional analysis laboratory installation |
| CN109696537A (en) * | 2019-01-28 | 2019-04-30 | 中国地质大学（武汉） | Gas hydrate synthesis decomposes observation device and its method under the conditions of high-voltage electrostatic field |
| CN109958401A (en) * | 2019-03-14 | 2019-07-02 | 中国科学院地质与地球物理研究所 | A kind of gas hydrates pressure maintaining coring sample transfer device and application method |
-
2020
- 2020-05-08 CN CN202010381657.2A patent/CN111561282B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005006039A1 (en) * | 2005-02-07 | 2006-08-10 | Friedrich Abegg | Sediment core sub-sampling device for e.g. exploration of sea, has core liner sealed to pressure chamber housing by lip seal, so that increase in pressure pushes piston to hydraulically move sediment core in to transfer line |
| CN202882823U (en) * | 2012-10-10 | 2013-04-17 | 中国石油集团长城钻探工程有限公司 | Sealing and cutting device of well mouth rock core |
| CN203626674U (en) * | 2013-11-19 | 2014-06-04 | 中国石油集团长城钻探工程有限公司 | Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting |
| CN108761023A (en) * | 2018-05-24 | 2018-11-06 | 大连理工大学 | A kind of sea bed gas hydrate core boat-carrying multifunctional analysis laboratory installation |
| CN109696537A (en) * | 2019-01-28 | 2019-04-30 | 中国地质大学（武汉） | Gas hydrate synthesis decomposes observation device and its method under the conditions of high-voltage electrostatic field |
| CN109958401A (en) * | 2019-03-14 | 2019-07-02 | 中国科学院地质与地球物理研究所 | A kind of gas hydrates pressure maintaining coring sample transfer device and application method |
Non-Patent Citations (1)
| Title |
|---|
| 陈家旺 等: ""天然气水合物保压转移装置的压力维持系统"", 《海洋技术学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565459A (en) * | 2021-07-29 | 2021-10-29 | 广东石油化工学院 | Natural gas hydrate rock core shifts and device of saving |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111561282B (en) | 2021-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5160694B1 (en) | Underground soil sampling tube and underground soil sampling device | |
| CN111561282B (en) | Core cutting device for natural gas hydrate under-pressure transfer system | |
| CN111521685A (en) | Natural gas hydrate under-pressure transfer and parameter detection system | |
| CN107228775B (en) | Fixed point acquisition device for coal sample while drilling | |
| WO2020098071A1 (en) | Permeability test device for hydrate sediments | |
| CN202330059U (en) | Soil-sampling head capable of keeping original properties of soil | |
| CN109916725A (en) | A kind of liquid nitrogen frozen and gasify expansion fracturing experiment test system and method | |
| CN211201912U (en) | Device for evaluating wellbore sand production and prevention during hydrate exploitation by CO2/N2 displacement method | |
| CN209012595U (en) | A kind of effective connection structure of plastic coated composite steel | |
| CN207540808U (en) | A kind of frozen soil sample collection device | |
| CN207351726U (en) | A kind of soil sampler | |
| CN201678994U (en) | Inner lining thin-walled static and movable triaxial soil sampler | |
| CN209670913U (en) | Heat-insulated, heat preservation and test integrated coiled tubing | |
| CN2765135Y (en) | Improved deep-freezing tube | |
| CN213333716U (en) | Natural gas buried high-pressure pipeline monitoring device | |
| CN114739731A (en) | Layered sampling device and method for soil sample | |
| CN207351768U (en) | A kind of air sample harvester | |
| CN108827698B (en) | A rock soil sample sampling device for geotechnical engineering reconnaissance | |
| CN207964331U (en) | A kind of spiral undisturbed soil sampler of vertical compression | |
| CN215910342U (en) | Automatic visual equipment of detection analysis natural ice state change | |
| CN221594687U (en) | Oil smoke particulate matter concentration check out test set | |
| CN204609874U (en) | Sampler | |
| CN201984024U (en) | Measuring rod structure of plant root system growth monitoring system | |
| CN114323970A (en) | Building material physical property testing device | |
| CN111535768B (en) | Core liner capturing device for natural gas hydrate under-pressure transfer system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200917 Address after: 430074 Wuhan Road, Hongshan, Shandong Province, Lu Lu Road, No. 388, No. Applicant after: CHINA University OF GEOSCIENCES (WUHAN CITY) Applicant after: GUANGZHOU MARINE GEOLOGICAL SURVEY Address before: 430074 Wuhan Road, Hongshan, Shandong Province, Lu Lu Road, No. 388, No. Applicant before: CHINA University OF GEOSCIENCES (WUHAN CITY) |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |