CN203626674U - Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting - Google Patents
Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting Download PDFInfo
- Publication number
- CN203626674U CN203626674U CN201320732914.8U CN201320732914U CN203626674U CN 203626674 U CN203626674 U CN 203626674U CN 201320732914 U CN201320732914 U CN 201320732914U CN 203626674 U CN203626674 U CN 203626674U
- Authority
- CN
- China
- Prior art keywords
- preservation
- heat
- pressure
- inner cylinder
- liner tube
- 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.)
- Expired - Lifetime
Links
- 238000004321 preservation Methods 0.000 title claims abstract description 21
- 238000005520 cutting process Methods 0.000 title abstract description 8
- 239000002131 composite material Substances 0.000 title abstract 4
- 238000009413 insulation Methods 0.000 claims description 10
- 239000011435 rock Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 1
- 238000007710 freezing Methods 0.000 description 7
- 230000008014 freezing Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/008—Drilling ice or a formation covered by ice
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)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to the technical field of combustible ice core obtaining, in particular to a heat-preservation and pressure-preservation composite inner cylinder enabling a core to be taken out through cutting. An upper ball valve assembly, an inner liner tube and a lower locking connector of the device are connected in sequence, an upper locking connector is connected with the outer wall of the upper ball valve assembly through threads, the upper locking connector, an outer liner tube and the lower locking connector are connected in sequence, a heat-preservation inner container is arranged between the inner liner tube and the outer liner tube, and the upper end and the lower end of the heat-preservation inner container are sealed through sealing pieces respectively. The heat-preservation and pressure-preservation composite inner cylinder satisfies the requirements for heat preservation and pressure preservation in a shaft and the rock core on the ground is easy to freeze and cut. The heat-preservation and pressure-preservation composite inner cylinder overcomes the shortages that an existing core taking inner cylinder cannot satisfy the requirement for underground heat preservation and the ground is prone to being frozen and cut.
Description
Technical field:
The utility model relates to a kind of combustible ice CORING TECHNOLOGY field, and particularly a kind of heat-insulation pressure keeping combined type can be cut coring inner drum.
Background technology:
The Major Difficulties that combustible ice is cored is exactly the pressure and temperature that how to keep inner core, in the time that rock core is got ground, must carry out freezing and cutting to inner core, and conventional coring inner drum cannot meet underground insulation and the easily freezing feature with cutting of ground.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of heat-insulation pressure keeping combined type can cut coring inner drum, and this device has been realized and met heat-insulation pressure keeping in pit shaft, be easy on ground rock core freezing and cutting.Overcome existing coring inner drum and cannot meet underground insulation and the easily freezing deficiency with cutting of ground.
Technical solution adopted in the utility model is: a kind of heat-insulation pressure keeping combined type can be cut coring inner drum, comprises upper ball valve assembly, internal lining pipe and lower lock-on connection; Upper ball valve assembly, internal lining pipe and lower lock-on connection are connected in turn, upper lock-on connection is threaded on upper ball valve assembly outer wall, upper lock-on connection, outer liner tube and lower lock-on connection are connected in turn, between internal lining pipe and outer liner tube, are provided with heat-preservation liner, and the upper and lower two ends of heat-preservation liner all seal by seal.
The beneficial effects of the utility model are: the utility model is owing to having adopted heat-preservation liner, thereby have and meet heat-insulation pressure keeping in pit shaft, are easy to the function of the freezing and cutting of rock core on ground.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
The specific embodiment:
As shown in Figure 1, a kind of heat-insulation pressure keeping combined type can be cut coring inner drum, comprises upper ball valve assembly 1, internal lining pipe 4 and lower lock-on connection 7; Upper ball valve assembly 1, internal lining pipe 4 and lower lock-on connection 7 are connected in turn, upper lock-on connection 2 is threaded on upper ball valve assembly 1 outer wall, upper lock-on connection 2, outer liner tube 6 and lower lock-on connection 7 are connected in turn, between internal lining pipe 4 and outer liner tube 6, be provided with heat-preservation liner 5, heat-preservation liner all seals by seal 3 at two ends Shang Xia 5.
While going out the heart, lay down successively lock-on connection 2, outer liner tube 6, seal 3, heat-preservation liner 5, remaining upper ball valve assembly 1, internal lining pipe 4, lower lock-on connection 7 are carried out freezing, freezing completing carried out cutting operation.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as meet, all within protection domain of the present utility model.
Claims (1)
1. heat-insulation pressure keeping combined type can be cut a coring inner drum, comprises upper ball valve assembly (1), internal lining pipe (4) and lower lock-on connection (7); It is characterized in that: upper ball valve assembly (1), internal lining pipe (4) and lower lock-on connection (7) are connected in turn, upper lock-on connection (2) is threaded on upper ball valve assembly (1) outer wall, upper lock-on connection (2), outer liner tube (6) and lower lock-on connection (7) are connected in turn, between internal lining pipe (4) and outer liner tube (6), be provided with heat-preservation liner (5), the upper and lower two ends of heat-preservation liner (5) all seal by seal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732914.8U CN203626674U (en) | 2013-11-19 | 2013-11-19 | Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732914.8U CN203626674U (en) | 2013-11-19 | 2013-11-19 | Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626674U true CN203626674U (en) | 2014-06-04 |
Family
ID=50813163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320732914.8U Expired - Lifetime CN203626674U (en) | 2013-11-19 | 2013-11-19 | Heat-preservation and pressure-preservation composite inner cylinder enabling core to be taken out through cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626674U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266148A (en) * | 2018-03-13 | 2018-07-10 | 长江大学 | A kind of coring pressurize short circuit |
| CN111561282A (en) * | 2020-05-08 | 2020-08-21 | 中国地质大学（武汉） | Core cutting device for natural gas hydrate under-pressure transfer system |
-
2013
- 2013-11-19 CN CN201320732914.8U patent/CN203626674U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266148A (en) * | 2018-03-13 | 2018-07-10 | 长江大学 | A kind of coring pressurize short circuit |
| CN108266148B (en) * | 2018-03-13 | 2023-08-15 | 长江大学 | Coring pressure-maintaining short circuit |
| CN111561282A (en) * | 2020-05-08 | 2020-08-21 | 中国地质大学（武汉） | Core cutting device for natural gas hydrate under-pressure transfer system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201009 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC GREATWALL DRILLING Co. Address before: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No. Patentee before: CNPC GREATWALL DRILLING Co. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |