CN209339884U - A kind of core fidelity cabin - Google Patents
A kind of core fidelity cabin Download PDFInfo
- Publication number
- CN209339884U CN209339884U CN201821299403.0U CN201821299403U CN209339884U CN 209339884 U CN209339884 U CN 209339884U CN 201821299403 U CN201821299403 U CN 201821299403U CN 209339884 U CN209339884 U CN 209339884U
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- coring tube
- interior
- flap
- valve
- fidelity cabin
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Abstract
The utility model discloses a kind of core fidelity cabin, including interior coring tube and outer coring tube, outer coring tube covers on interior coring tube, interior coring tube upper end closed, and interior coring tube is equipped with piston, piston radial separates interior coring tube, one end of interior coring tube upper end connecting pipe, the other end of pipeline connect liquid nitrogen storage tank, and pipeline is equipped with valve, liquid nitrogen storage tank is located in outer coring tube, and outer coring tube is equipped with flap valve.The utility model can adjust the pressure in cabin, be conducive to the state that core keeps it in situ under environment.
Description
Technical field
The utility model relates to exploration of oil and gas field field more particularly to a kind of core fidelity cabins.
Background technique
During exploration of oil and gas field, core is discovery oil-gas Layer and research stratum, source bed, oil reservoirs, cap rock, construction
Deng capsule information, by the observational study to core, can directly understand lithology, physical property and the oil-containing of subterranean strata, gas,
Water attitude Characteristics.After the investment exploitation of oil field, oil reservoir deposition characteristics are further studied and recognized by core, the physical property of reservoir,
Pore structure, wetability, relative permeability, lithofacies characteristics, reservoir physics simulation and reservoir water flooding rule；Understanding and grasp are different
It development phase, different water cut stages reservoir water flooding feature, gets remaining oil distribution clear, is designed for oilfield development program, series of strata, well pattern
Adjustment and Encryption Well provide scientific basis.
Coring is that subsurface rock is got on ground blockingly using special coring tool in drilling process, this
The blocking rock of kind is called core, and the various properties of rock can be measured by it, and intuitively Study of The Underground construction and rock are heavy
Product environment, understands fluid properties therein etc..In mineral exploration and development process, need by geological design stratigraphic horizon and
Depth is carried out drilling work, the tripping in coring tool into well, the core sample drilled through out, and is stored in core storage cabin,
In equipment uphill process, the environmental parameters such as pressure of core storage cabin can be reduced, so that core is not able to maintain its environment in situ
Under state.
Utility model content
The utility model is intended to provide a kind of core fidelity cabin, can adjust the pressure in cabin, is conducive to core and keeps it
State under environment in situ.
In order to achieve the above objectives, the utility model adopts the following technical solutions realization:
A kind of core fidelity cabin disclosed by the utility model, including interior coring tube and outer coring tube, the outer coring tube set
On interior coring tube, the interior coring tube upper end closed, interior coring tube is equipped with piston, and the piston radial separates interior coring
Cylinder, one end of interior coring tube upper end connecting pipe, the other end of the pipeline connect liquid nitrogen storage tank, and pipeline is equipped with valve,
The liquid nitrogen storage tank is located in outer coring tube, and the outer coring tube is equipped with flap valve.
Further, the inner wall of the interior coring tube adheres to graphene layer.
Further, the film forming agent that drips is filled on the interior coring tube top.
Preferably, the flap valve includes valve seat and flap, and the flap includes elastic seal ring, elastomeric connector strip, close
Sealing and multiple successively bolts arranged in parallel, elastomeric connector strip contact all bolts and by elastic seal ring by all bolts
Hoop forms overall structure together, there is the card slot being adapted to elastic seal ring on bolt, and elastic seal ring is adjacent in card slot
Sealing element is equipped between two bolts, flap one end is movably connected in valve seat upper end by limit hinge.
Preferably, the flap is arc when not turning down, and flap is bonded with the outer wall of interior coring tube；Flap is when turning down
For plane and cover valve seat upper end.
Further, the outer coring tube inner wall is equipped with seal chamber, and the flap valve is located at seal chamber, the seal chamber and
Interior coring tube connection.
Further, the outer coring tube inner wall is equipped with sealing ring, and the sealing ring is located at the lower section of flap valve.
Preferably, the interior coring tube is PVC material.
Preferably, the valve is electrically-controlled valve.
The beneficial effects of the utility model are as follows:
1, the utility model can push piston to adjust the pressure in cabin by liquid nitrogen, be conducive to core and keep its ring in situ
State under border.
2, the turnover panel valve system of the utility model can coring complete when self-closed fidelity cabin, structure is simple, safety
Reliably.
3, the graphene layer of the utility model can reduce resistance to sliding of the core on the inside of pvc pipe, while improve inside
Intensity and surface accuracy, enhancing thermal conductivity coefficient etc..
4, the seal chamber of the utility model can completely cut off the drilling fluid intracavitary by fidelity.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is structural schematic diagram when flap valve is not turned down；
Fig. 3 is structural schematic diagram when flap valve has been turned down；
Fig. 4 is the structural schematic diagram of flap；
Fig. 5 is the structural schematic diagram of seal chamber；
Fig. 6 is the partial sectional view of interior coring tube.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing, to this reality
It is further elaborated with novel.
As shown in Figure 1, a kind of core fidelity cabin disclosed by the utility model, including interior coring tube 8 and outer coring tube 6, it is interior
Coring tube 8 for placing core 1,6 sets of outer coring tube on interior coring tube 6, interior 8 upper end closed of coring tube, interior coring tube 8 is set
There is piston 7, piston 7 is radial to separate interior coring tube 8, and the other end of one end of interior 8 upper end connecting pipe of coring tube, pipeline connects liquid
Nitrogen storage tank 25, pipeline are equipped with valve 26, and liquid nitrogen storage tank 25 is located in outer coring tube 6, and outer coring tube 6 is equipped with flap valve 3.
Specifically, as shown in Figure 2, Figure 3, Figure 4, flap valve 3 includes valve seat 36 and flap 37, flap 37 includes elastic packing
Circle 34, elastomeric connector strip 32, sealing element and multiple successively bolts 35 arranged in parallel, elastomeric connector strip 32 go here and there all bolts 35
Overall structure even and by elastic seal ring 34 by all bolts 35 hoop is formed together, is had on bolt 35 and is adapted to elastic seal ring
Card slot 31, elastic seal ring 34 is equipped with sealing element, 3 one end of flap passes through limit in the card slot 31 between two neighboring bolt 35
Position hinge 33 is movably connected in 36 upper end of valve seat；Flap 37 is arc, the outer wall patch of flap 37 and interior coring tube 8 when not turning down
It closes；Flap 37 for plane and covers 36 upper end of valve seat when turning down.
As shown in figure 5, being equipped with seal chamber 37 in outer coring tube 6, the flap valve 3 is located in seal chamber 37, the sealing
Chamber is connected to interior coring tube.
As shown in fig. 6, interior coring tube 8 uses PVC material, the inner wall of interior coring tube 8 adheres to graphene layer 81, interior coring tube
The film forming agent 82 that drips is filled on 8 tops, and the film forming agent 82 that drips is located at 7 lower section of piston.
Certainly, the utility model can also have other various embodiments, without departing substantially from the spirit of the present invention and its essence
In the case of, those skilled in the art can make various corresponding changes and modifications, but these phases according to the utility model
The change and modification answered all should belong to the protection scope of the utility model the attached claims.
Claims (9)
1. a kind of core fidelity cabin, it is characterised in that: including interior coring tube and outer coring tube, the outer coring tube is covered in interior coring
On cylinder, the interior coring tube upper end closed, interior coring tube is equipped with piston, and the piston radial separates interior coring tube, interior coring
One end of cylinder upper end connecting pipe, the other end of the pipeline connect liquid nitrogen storage tank, and pipeline is equipped with valve, and the liquid nitrogen is deposited
Storage tank is located in outer coring tube, and the outer coring tube is equipped with flap valve.
2. a kind of core fidelity cabin according to claim 1, it is characterised in that: the inner wall of the interior coring tube adheres to graphite
Alkene layer.
3. a kind of core fidelity cabin according to claim 2, it is characterised in that: the interior coring tube top filling is dripped into
Film.
4. a kind of core fidelity cabin according to claim 1 to 3, it is characterised in that: the flap valve includes valve
Seat and flap, the flap include elastic seal ring, elastomeric connector strip, sealing element and multiple successively bolts arranged in parallel, bullet
Property connection strap all bolts are contacted and all bolt hoops are formed into overall structure together by elastic seal ring, have on bolt with
The card slot of elastic seal ring adaptation, elastic seal ring are equipped with sealing element in card slot between two neighboring bolt, flap one end is logical
It crosses limit hinge and is movably connected in valve seat upper end.
5. a kind of core fidelity cabin according to claim 4, it is characterised in that: the flap is arc when not turning down,
Flap is bonded with the outer wall of interior coring tube；Flap for plane and covers valve seat upper end when turning down.
6. a kind of core fidelity cabin according to claim 4, it is characterised in that: the outer coring tube inner wall is equipped with sealing
Chamber, the flap valve are located at seal chamber, and the seal chamber is connected to interior coring tube.
7. a kind of core fidelity cabin according to claim 4, it is characterised in that: the outer coring tube inner wall is equipped with sealing
Circle, the sealing ring are located at the lower section of flap valve.
8. a kind of core fidelity cabin according to claim 4, it is characterised in that: the interior coring tube is PVC material.
9. a kind of core fidelity cabin according to claim 1, it is characterised in that: the valve is electrically-controlled valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821299403.0U CN209339884U (en) | 2018-08-13 | 2018-08-13 | A kind of core fidelity cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821299403.0U CN209339884U (en) | 2018-08-13 | 2018-08-13 | A kind of core fidelity cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209339884U true CN209339884U (en) | 2019-09-03 |
Family
ID=67744135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821299403.0U Active CN209339884U (en) | 2018-08-13 | 2018-08-13 | A kind of core fidelity cabin |
Country Status (1)
| Country | Link |
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| CN (1) | CN209339884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847856A (en) * | 2019-11-26 | 2020-02-28 | 四川大学 | Flap valve structure of pressure maintaining coring device |
-
2018
- 2018-08-13 CN CN201821299403.0U patent/CN209339884U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847856A (en) * | 2019-11-26 | 2020-02-28 | 四川大学 | Flap valve structure of pressure maintaining coring device |
| CN110847856B (en) * | 2019-11-26 | 2024-04-12 | 四川大学 | Flap valve structure of pressure maintaining corer |
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