CN109488241A - Fidelity coring device - Google Patents
Fidelity coring device Download PDFInfo
- Publication number
- CN109488241A CN109488241A CN201811495104.9A CN201811495104A CN109488241A CN 109488241 A CN109488241 A CN 109488241A CN 201811495104 A CN201811495104 A CN 201811495104A CN 109488241 A CN109488241 A CN 109488241A
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- Prior art keywords
- pressure
- fidelity
- cabin
- fidelity cabin
- outer cylinder
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- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000005553 drilling Methods 0.000 claims abstract description 5
- 238000003860 storage Methods 0.000 claims description 31
- 238000012545 processing Methods 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 9
- 230000006837 decompression Effects 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 description 62
- 239000011435 rock Substances 0.000 description 22
- 239000002689 soil Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000002826 coolant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 239000004615 ingredient Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003208 petroleum Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003447 ipsilateral effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- -1 pressure Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012916 structural analysis 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
- E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
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)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of fidelity coring device, including outer cylinder and fidelity cabin, the fidelity cabin is set in the hollow cavity of the outer cylinder, the outer cylinder is used for core-drilling, the fidelity cabin is for accommodating the core, accumulator is additionally provided in the outer cylinder, the accumulator is connect with the fidelity cabin, pass through the comparison of the pressure at the pressure and coring of the core in the fidelity cabin to detection, the accumulator is used to be pressurized the fidelity cabin or depressurize, so that the pressure in the fidelity cabin is identical as the pressure at coring.By the way that fidelity cabin is arranged, and accumulator is set in outer cylinder, accumulator can be pressurized or depressurize to fidelity cabin, so that the pressure in fidelity cabin is identical as the pressure at coring, reach pressure holding effect.
Description
Technical field
The invention belongs to geology detecting technical field more particularly to a kind of fidelity coring devices.
Background technique
" the common core " that current deep drilling at home and abroad obtains releases the compositions such as pressure, temperature, pore water, seriously loses
Very, unrelated with locating deep in situ environment.The problem of scientific research will lead to following four aspect is carried out using common core:
1) invalid core (due to stress release, being crushed to ground)；2) the Reserves Assessment distortion of petroleum resources, indeterminacy are not calculated accurately；
3) deep rock stratum life entity that may be present (microorganism, virus etc.) is withered away；4) rock stratum of different depth time of day is not detected
Physical and mechanical parameter.
Wherein, pressure maintaining is a great problem urgently to be resolved.
Summary of the invention
The object of the present invention is to provide a kind of fidelity coring devices, are able to achieve fidelity coring, especially realization pressure holding effect.
To achieve the purpose of the present invention, the present invention provides the following technical solutions:
The present invention provides a kind of fidelity coring device, including outer cylinder and fidelity cabin, and the fidelity cabin is set to the outer cylinder
Hollow cavity in, the outer cylinder is used for core-drilling, and the fidelity cabin is additionally provided with for accommodating the core in the outer cylinder
Accumulator, the accumulator are connect with the fidelity cabin, pass through the pressure and coring of the core in the fidelity cabin to detection
The comparison of the pressure at place, the accumulator are used to be pressurized the fidelity cabin or depressurize so that pressure in the fidelity cabin with
Pressure at coring is identical.
Wherein, the fidelity coring device further includes pressure regulator, the pressure regulator be set to the accumulator and
Between the fidelity cabin, the pressure regulator is driven to adjust the pressure in the fidelity cabin by the accumulator, so that described
The pressure in fidelity cabin keeps balance.
Wherein, the pressure regulator is piston, and the accumulator is used to provide compressed gas to push the piston, or
Person is evacuated and retracts the piston；When the pressure decline in the fidelity cabin, the accumulator provides compressed gas and pushes
The piston, so that the fidelity cabin is pressurized and volume-diminished, to keep the pressure in the fidelity cabin constant；When the fidelity
When the pressure in cabin rises, the accumulator pumping and retract piston so that fidelity cabin decompression and volume increases, to keep
The pressure in the fidelity cabin is constant.
Wherein, pressure sensor is equipped in the outer cylinder, the pressure sensor is used to detect the pressure in the fidelity cabin
Power, and the electric signal of Real-time Feedback pressure.
Wherein, the fidelity coring device includes processing unit, and the processing unit receives the pressure sensor feedback
Pressure electric signal, and issue instruction and control the accumulator and input compressed gas into the fidelity cabin or from the fidelity
Draw gas in cabin, so that the pressure in the fidelity cabin is identical as the pressure at the coring.
Wherein, connecting pipe is equipped between the accumulator and the fidelity cabin, the connecting pipe is equipped with the 4th control
Valve processed, the processing unit are electrically connected with the 4th control valve, and according to the guarantor of the pressure sensor Real-time Feedback
The electric signal of pressure in true cabin controls the opening and closing of the 4th control valve.
Wherein, the 4th control valve is three-way cut-off valve, and a connector of the 4th control valve is also connected with pressure release
Valve, the relief valve are used to lay down the gas pressure in the fidelity cabin.
Wherein, the fidelity cabin also passes through pipeline and is connected with the 5th control valve, and the 5th control valve is connected with pressure gauge,
The pressure gauge is for the pressure in fidelity cabin described in real-time display.
Wherein, be additionally provided with closure member on the outer cylinder, the closure member is equipped with elastic slice, when the fidelity cabin completely into
After in the hollow cavity of the outer cylinder, the elastic slice drives the closure member pop-up, so that the closure member closes the outer cylinder
Hollow cavity space be in enclosure space.
Wherein, it encloses on the side of the closure member equipped with a circle sealing structure, is closed outside described when the closure member is in
When the state of cylinder, the sealing structure on the side of the closure member is close to the inner wall of the outer cylinder.
By the way that fidelity cabin is arranged, and accumulator is arranged, accumulation of energy in a kind of fidelity coring device provided by the invention in outer cylinder
Device can be pressurized or depressurize to fidelity cabin, so that the pressure in fidelity cabin is identical as the pressure at coring, reach pressure holding effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of modular schematic diagram of the cross-section structure of the structure of the fidelity coring device of embodiment；
Fig. 2 is a kind of the schematic diagram of the section structure of the fidelity coring device of embodiment.
Fig. 3 is a kind of structural schematic diagram of the closure member of embodiment；
Fig. 4 is a kind of structural schematic diagram of the inner cylinder of embodiment；
Fig. 5 is a kind of schematic diagram of the control section of the fidelity coring of embodiment.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to FIG. 1, the embodiment of the present invention provides a kind of fidelity coring device, including outer cylinder 10, inner cylinder 20 and fidelity cabin
30, inner cylinder 20 is placed in the hollow cavity of outer cylinder 10, and fidelity cabin 30 is set in inner cylinder 20.
Incorporated by reference to Fig. 1 and Fig. 2, the end of outer cylinder 10 is equipped with drill bit 11, and drill bit 11 is used to tunnel soil or rock interior, and
Obtain core.Drill bit also can be set in the end ipsilateral with outer cylinder 10 on inner cylinder 20, the core for obtaining to the probing of outer cylinder 10
Fine machining is carried out, so that core forms preset shape, it is such as cylindrical, so as to be stored by fidelity cabin 30.Outer cylinder
10 and inner cylinder 20 can be opposite movement, moving direction be along outer cylinder 10 axial direction so that the drill bit of outer cylinder 10 and inner cylinder 20 can
To be cut in different times, accelerate coring efficiency.In order to enable the drilling temperature of drill bit 11 is maintained at normal range (NR),
Cooling liquid flowing channel can be also equipped in gap between outer cylinder 10 and inner cylinder 20, for cooling down to drill bit 11.
The purpose of fidelity coring device provided by the embodiment of the present invention is in situ with soil or rock etc. in order to obtain
The identical core of the actual environment set, so as to for follow-up study at this property of soil or rock foundation is provided.It is based on
Research to fidelity coring device core obtained provided in an embodiment of the present invention, can be applied to petroleum resources detection,
The fields such as matter structural analysis, deep microbe research.
Furthermore, " fidelity " of fidelity coring device provided in an embodiment of the present invention may include heat preservation, pressure maintaining, guarantor
Light etc. is protected in matter, moisturizing, that is, the core obtained can be with the temperature of the soil of the original position of coring or rock, pressure, ingredient, wet
Degree or luminous flux are consistent.
Referring to FIG. 1, fidelity cabin 30 can be the space of the hollow cavity of inner cylinder 20 itself, or one independent
Tube structure is arranged in the hollow cavity of inner cylinder 20, which there is cavity can accommodate core.
In a kind of embodiment, Fig. 1 and Fig. 2 are please referred to, fidelity cabin 30 is integrally provided in outer cylinder 10, can be set on outer cylinder 10
Closure member 3, in location of the coring procedure, closure member 3 is opened so that core can protrude into the cavity in fidelity cabin 30 by outer cylinder 10,
Closure member 3 closes outer cylinder 10 after core is completely into fidelity cabin 30, so that fidelity cabin 30 is accommodated in closed outer cylinder 10
In hollow cavity.
In a kind of embodiment, fidelity cabin 30 is integrally provided in inner cylinder 20, and closure member 3 may be provided on inner cylinder 20, coring
In the process, closure member 3 is opened so that core can protrude into the cavity in fidelity cabin 30 by inner cylinder 20, core completely into
Behind fidelity cabin 30, closure member 3 closes inner cylinder 20, so that fidelity cabin 30 is accommodated in the hollow cavity of closed inner cylinder 20.
In a kind of embodiment, closure member 3 can be also set on fidelity cabin 30, drill through rock in the drill bit of outer cylinder 10 or inner cylinder 20
When core, closure member 3 is opened, until closure member 3 closes fidelity cabin 30, so that core quilt after core is completely into fidelity cabin 30
It is accommodated in the closed cavity in fidelity cabin 30.
The closure member 3 of above embodiments can use suitable structure.It is so that the embodiment of closure member 3 to be arranged on outer cylinder 10
Example, referring to FIG. 3, closure member 3 can be a kind of reverse turning bed structure, when outer cylinder 10 in opened condition when, closure member 3 is fitted in outer cylinder
On 3 inner wall；When outer cylinder 10 is in closed state, closure member 3 pops up from the inner wall of outer cylinder 3 and closes outer cylinder 10.Closing
The structure that the driving closure members 3 such as elastic slice 31 move can be equipped on part 3, the inner cylinder 20 backwards of closure member 3 is arranged in elastic slice 31
One side surface, when on the inner wall that closure member 3 is fitted in outer cylinder 3, elastic slice 31 is in compressed structure；When needing to close outer cylinder 10
When, the elasticity of elastic slice 31 discharges and pops up closure member 3 and close outer cylinder 10.Closure member 3 is under the elastic reaction of elastic slice 31
It making rotating motion, state when as shown in Figure 3 is state when closure member 31 is fitted on outer cylinder 3, when closure member 31 rotates, with
The lower end of closure member 31 shown in Fig. 3 is center of circle rotation, and rotation angle is 90 °, ultimately forms closure member 3 as shown in Figure 2
Structure.In a kind of embodiment, when closure member 3 is fitted on the inner wall of outer cylinder 3, elastic slice 31 is supported on the inner wall of outer cylinder 3, due to
There is relative movement between inner cylinder 20 and outer cylinder 10, inner cylinder 20 there can be resist force to closure member 3, limit the elastic slice 31 of closure member 3
In compressive state；When inner cylinder 20 is moved to specific position, inner cylinder 20 is gradually distance from closure member 3, so that in closure member 3 loses
The limitation of cylinder 20, elastic slice 31 can discharge elasticity, so that closure member 3 pops up and closes outer cylinder 10, realize closure member 3 oneself
It moves out.In a kind of embodiment, other means that are released through of the elastic slice 31 of closure member 3 are carried out automatically controlling, for example, elastic slice 31
It is equipped with electronic release structure, electronic release structure can be the spring of Electronic control, and the both ends of spring are connected on elastic slice 31,
Spring discharges when energization, releases the pressure (or pulling force) to elastic slice 31；The pressure to elastic slice 31 is kept when electronic release structure powers off
Power (or pulling force), so that elastic slice 31 keeps compressive state.Electronic release structure may include power supply, switch and position sensor,
Position sensor is arranged on outer cylinder 10, for sensing whether core has fully entered in fidelity cabin 30, if so, then switch closes
It closes and is powered, release the pressure (or pulling force) to elastic slice 31, the elastic force driving closure member 3 of elastic slice 31 moves, to close outer cylinder
10, the control of electronic release structure can be controlled using processing unit 100 hereinafter.In other embodiments, closure member 3
It can also be other kinds of structure.
In a kind of embodiment, in order to enable closure member 3 can be closed effectively, it is arranged with closure member 3 in outer cylinder 10
Inner wall on for, can also be enclosed on the side of closure member 3 and set a circle sealing structure, such as sealing ring.When closure member 3 is in outside closing
When the state of cylinder 10, the side of closure member 3 is bonded with the inner wall of outer cylinder 10, and one circle sealing structure of setting can make closure member 3
It can be contacted with outer cylinder 10 closer, sealing effect is more preferable.
Fig. 1 and Fig. 2 are please referred to, the first liquid storage device 40 and the second liquid storage device 50, the first liquid storage device 40 are equipped in outer cylinder 10
It is provided with liquid with the second liquid storage device 50, passes through the knot such as pipeline between the first liquid storage device 40 and the second liquid storage device 50 and fidelity cabin 30
Structure connection, enters liquid in fidelity cabin 30, and in the liquid and the second liquid storage device 50 in the first liquid storage device 40
Effect of mass transmitting can occur in fidelity cabin 30 for liquid, and then generate phase transformation, finally form one layer of guarantor in the surrounded surface of core
Cuticula, it is consistent with the soil of the original position of coring or rock composition and humidity with the ingredient, the humidity that guarantee core etc., realize fidelity
Effect.
Specifically, the liquid stored in the first liquid storage device 40 is A liquid, the liquid of the second liquid storage device 50 storage is B liquid, A
Liquid is specifically as follows the film forming agent that drips, as polysulfones and DMF (N, N-DimethylformamideN, dinethylformamide) mutually mix
The solution formed after conjunction；B liquid is specifically as follows water or ethanol solution.The principle of mass transfer is that solvent, can be A more soluble in B liquid in A liquid
Solute in liquid is separated, and two kinds of liquid mixing and film-forming form the sealing film of one layer of package core.
Fig. 1, Fig. 2 and Fig. 4 are please referred to, (i.e. fidelity cabin 30 is in inner cylinder 20 so that the inner cavity of inner cylinder 20 accommodates core as an example
Cavity body) illustrate, the inside of the side wall of inner cylinder 20 is equipped with runner 22, and runner 22 is looped around the roof and surrounding side wall of inner cylinder 20.
Multiple cinclides 23 are additionally provided on the inner wall of inner cylinder 20, multiple cinclides 23 are evenly distributed on the surrounding side wall of inner cylinder 20, certainly,
Cinclides 23 can also be distributed on roof.The hollow cavity of cinclides connection runner 22 and inner cylinder 20.Be additionally provided on inner cylinder 20 into
Liquid mouth 24, inlet 24 are equipped with the first control valve 25, and the first control valve 25 can control the opening and closing of inlet 24.Inlet 24
It is preferred that being provided on the roof of inner cylinder 20, and the 24 connection external world of inlet and runner 22, liquid can after 24 feed liquor of inlet at this time
Under the effect of gravity toward flow down and be full of runner 22, and from cinclides 23 flow into inner cylinder 20 hollow cavity in.First liquid storage device
40 and second liquid storage device 50 connect with inlet 24 by pipeline so that A liquid and B liquid can be flowed by inlet 24 it is interior
In the hollow cavity of cylinder 20.Preferably, A liquid and B liquid do not flow into inlet 24 simultaneously, but successively flow into, that is to say, that A liquid
The position that effect of mass transmitting occurs and then generates phase transformation with B liquid will not generate in runner 22, but in the hollow cavity of inner cylinder 20
It is interior, it is accommodated in due to core in the hollow cavity of inner cylinder 20, effect of mass transmitting can occur for A liquid and B liquid in turn in core face
Generate phase transformation, form the protective film of package core, protective film can completely cut off extraneous environmental condition, realize keep core at
Point, humidity and luminous flux etc. at coring soil or rock etc. it is identical.
In a kind of embodiment, Fig. 2 and Fig. 4 are please referred to, the top of inner cylinder 20 is arranged in the first liquid storage device 40, and the two is adjacent
Setting, the first liquid storage device 40 can be directly connected to the inlet 24 on inner cylinder 20.Second liquid storage device 50 is arranged in the first liquid storage
40 top of device, the second liquid storage device 50 are connect by pipeline with inlet 23, and the second control valve 51 is also provided on pipeline, the
Two control valves 51 are used to control whether B liquid to flow to inlet 24.
It please refers to Fig. 1 and Fig. 2, in a kind of embodiment, third liquid storage device 60 is equipped in outer cylinder 10, third liquid storage device 60 is used
In storage coolant, coolant for example can be liquid nitrogen, for cooling to inner cylinder 20, so that it is cooling to fidelity cabin 30, it is final right
Core is cooled down.It is equipped with heater 12 in 20 periphery of inner cylinder, heater 12 for example can be resistance wire, and heater 12 can be right
Inner cylinder 20 heats, and then heats to fidelity cabin 30, finally heats to core.Temperature sensor 4 is additionally provided in outer cylinder 10,
Temperature sensor 4 is used to detect the temperature of the core in fidelity cabin 30, can be also used for the soil in probing at detection coring
Or the temperature of rock.It is compared, and passed through by the temperature to soil or rock at the temperature and coring in fidelity cabin 30
The release coolant of third liquid storage device 60 carries out the means that cooling or heater 12 heats and is adjusted, so that the temperature in fidelity cabin 30
Degree is identical with the temperature of soil or rock at coring, to realize the function of keeping original temperature condition.
Specifically, please referring to Fig. 1 and Fig. 2, the top of the second liquid storage device 50, third liquid storage is arranged in third liquid storage device 60
Device 60 is connect by pipeline with the outer wall of inner cylinder 20, the settable netted capillary channel of the outer wall surrounding of inner cylinder 20, coolant into
After entering in capillary channel, inner cylinder 20 can uniformly be cooled down.Likewise, the heater of the outer wall surrounding setting in inner cylinder 20
12 may be netted structure, can uniformly be heated to inner cylinder 20.To avoid short circuit, the coating of 12 surface of heater is exhausted
Edge layer.In a kind of embodiment, heater 12 can also be arranged on the inner wall of outer cylinder 10.Temperature sensor 4 is arranged in outer cylinder 10
On close inner cylinder 20 lower end outlet position, and be located at closure member 3 close after outer cylinder 10 inside, to approach fidelity
Cabin 30 and do not stop inner cylinder 20 relative to the movement of outer cylinder 10.
It please refers to Fig. 1 and Fig. 2, in a kind of embodiment, accumulator 70, accumulator 70 and fidelity cabin 30 is additionally provided in outer cylinder 10
Connection, accumulator 70 is used to be pressurized fidelity cabin 30 or depressurize, so that the pressure in fidelity cabin 30 and the pressure phase at coring
Together.Specifically, being equipped with pressure regulator (not shown) between accumulator 70 and fidelity cabin 30, driven by accumulator 70
Pressure regulator adjusts the pressure in fidelity cabin 30, so that the pressure in fidelity cabin 30 keeps balance.Pressure regulator for example can be
Piston, accumulator 70 can provide compressed gas to push piston, or be evacuated and retract piston.Pressure in fidelity cabin 30
When decline, accumulator 70 provides compressed gas and pushes piston, fidelity cabin 30 can be made to be pressurized and volume-diminished, to keep
The pressure in true cabin 30 is constant.When the pressure in fidelity cabin 30 rises, accumulator is evacuated and retracts piston, can make fidelity cabin
30 decompressions and volume increase, to keep the pressure in fidelity cabin 30 constant.Pressure sensor 5 is additionally provided in outer cylinder 10, pressure passes
Sensor 5 is used to detect the pressure in fidelity cabin 30, can be used for the pressure of the soil or rock at detection coring.When in core
When containing large quantity of moisture (or liquid component), pressure herein refers to osmotic pressure.By in fidelity cabin 30 pressure and take
The pressure of soil or rock at core compares, and is adjusted by the means that accumulator 70 adjusts pressure regulator, makes
The pressure obtained in fidelity cabin 30 is identical with the pressure of soil or rock at coring, to realize the function for keeping reset pressure condition
Energy.
Specifically, referring to FIG. 2, accumulator 70 is arranged on 20 top of inner cylinder, preferably above third liquid storage device 60.
Pressure regulator can be set in the space between inner cylinder 20 and accumulator 70.In a kind of embodiment, Fig. 1 and Fig. 2 are please referred to,
Pressure sensor 5 may be provided at the position of the lower end outlet of the close inner cylinder 20 on outer cylinder 10, and after the closing of closure member 3
Outer cylinder 10 inside, to approach fidelity cabin 30 and not stop inner cylinder 20 relative to the movement of outer cylinder 10.In another embodiment, pressure
Force snesor 5 is arranged on the roof of fidelity cabin 30 (or inner cylinder 20), can directly contact with core.
The various embodiments described above describe the fidelity means for soil or rock coring, for containing big quantity of fluid or gas
Body, when such as detecting petroleum, natural gas, the principle of the scheme of the embodiment of the present invention also be can be used.Difference is, according to core
Ingredient difference carries out appropriate adjustment, for example, petroleum is liquid, and natural gas is gas, then fidelity cabin when detection petroleum or natural gas
30 need better seal.When keeping ingredient, humidity and luminous flux, A liquid and B liquid can be not directly contacted with core, formation
Protective film can be wrapped on 30 outer wall of fidelity cabin.
Referring to FIG. 2, also being set on the inner wall in fidelity cabin 30 to reduce the friction between 30 inner wall of core and fidelity cabin
There is lubrication part, the lubrication part of the present embodiment can be the layer structure of graphene.
Referring to FIG. 5, simultaneously the control section of the fidelity coring device of the embodiment of the present invention includes processing combined with Figure 1 and Figure 2,
Unit 100, power supply 200, connecting line and various valves.Processing unit 100 has pre-set programs, and pre-set programs can be sent out as needed
Specific instruction out.Specifically, processing unit 100 can be the PLC plate being arranged in outer cylinder 10 or be arranged in people behaviour area
The electronic computer etc. in domain.Power supply 200 is that processing unit 100 and heater 12 are powered, and connecting line is connected to 100 He of processing unit
Between each valve, for transmitting the instruction of processing unit 100.After valve receives the instruction of processing unit 100, opening is executed
Or the movement of valve is closed, to realize the function of fidelity described in above-described embodiment.
Specifically, the pipeline that third liquid storage device 60 is connect with fidelity cabin 30 is equipped with third control valve 61, accumulator 70
The pipeline connecting with fidelity cabin 30 is equipped with the 4th control valve 71, and third control valve 61 and the 4th control valve 71 are electrically-controlled valve.Place
It manages unit 100 and power supply 200, temperature sensor 4, pressure sensor 5, the first control valve 25, the second control valve 51, third controls
Valve 61 and the electrical connection of the 4th control valve 71.
The connecting line connected between power supply 200 and heater 12 is equipped with switch 201,100 control switch 201 of control unit
Opening and closing, switch 201 is for switching on and off power supply 200, realizing the heating of heater 12 or not heating.
First control valve 25 and the second control valve 51 are electrically-controlled valve, and after core is completely into fidelity cabin 30, closure member 3 will
Outer cylinder 10 is closed, and processing unit 100 controls the first control valve 25 and opens, and the A liquid in the first liquid storage device 40 enters in fidelity cabin 30,
Then processing unit 100 controls the second control valve 51 and opens, and the B liquid in the second liquid storage device 50 enters in fidelity cabin 30, A liquid and B
Effect of mass transmitting and then phase transformation occur for liquid, form protective film and are covered on core, realize the isolation of core and external environment.
It can be electrically connected wirelessly between temperature sensor 4 and pressure sensor 5 and processing unit 100,
Realize communication function.
The electric signal of temperature in fidelity cabin 30 is transferred to processing unit 100 by temperature sensor 4, and processing unit 100
Compared according to the temperature of the temperature in fidelity cabin 30 and soil or rock at coring, determine need to fidelity cabin 30 heat up or
Cooling.Further, if you need to heat up, then 100 control switch 201 of processing unit is closed, and heater 12 heats fidelity cabin 30, directly
Temperature to fidelity cabin 30 is identical as the temperature of soil or rock at coring.If you need to cool down, then processing unit 100 controls third
Control valve 61 is opened, and the coolant in third liquid storage device 60 flow to fidelity cabin 30 and takes away the heat in fidelity cabin 30, is dropped
Temperature, until the temperature in fidelity cabin 30 is identical as the temperature of soil or rock at coring.It is above-mentioned to carry out in heating and temperature-fall period,
Temperature sensor 4 can Real-time Feedback fidelity cabin 30 temperature to processing unit 100 so that the control of processing unit 100 heats up
Or the instruction real-time update of cooling, to reduce error.
The electric signal of pressure in fidelity cabin 30 is transferred to processing unit 100 by pressure sensor 5, and processing unit 100
Compared according to the pressure of the temperature in fidelity cabin 30 and soil or rock at coring, determine need to fidelity cabin 30 be pressurized or
Decompression.Further, if you need to be pressurized, then processing unit 100 controls the 4th control valve 71 and opens, the compression control in accumulator 70
Into in fidelity cabin 30, core is pressurized, until the pressure in fidelity cabin 30 is identical as the pressure of soil or rock at coring.Such as
It needs to be depressured, then closes the 4th control valve 71, be additionally provided with relief valve 72 on the pipeline connected between accumulator 70 and fidelity cabin 30,
Relief valve 72 is electrically-controlled valve, and processing unit 100 controls relief valve 72 and opens, and the gas in fidelity cabin 30 passes through relief valve through pipeline
72 lay down, until the pressure in fidelity cabin 30 is identical as the pressure of soil or rock at coring.Above-mentioned pressurization or pressure reduction
In, pressure sensor 5 can Real-time Feedback fidelity cabin 30 pressure to processing unit 100 so that the control of processing unit 100 increases
Pressure or the instruction real-time update of decompression, to reduce error.
Above-mentioned first control valve 25, the second control valve 51, third control valve 61 and the 4th control valve 71 can be shut-off valve,
Wherein the 4th control valve 71 can be three-way cut-off valve, and a connector of the 4th control valve 71 is connected to relief valve 72.
In order to observe the pressure in fidelity cabin 30 in real time, it can also set the 5th control valve 15 and be connected in fidelity cabin 30, the
Five control valves 15 or three-way cut-off valve, one interface connect pressure gauge 151, and pressure gauge setting is observed that in people
Position, pressure gauge 151 can be with the pressure in real-time display fidelity cabin 30, and the pressure that carry out observation fidelity cabin 30 convenient for people becomes
Change, prevent the failures such as pressure sensor 5, the 4th control valve 71 or accumulator 70 and cause pressure in fidelity cabin 30 and it is practical not
Symbol.
Above-mentioned each valve can adjust aperture as needed, so that adjusting temperature, pressure or the rate of mass transfer phase transformation not
Together.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and weighs according to the present invention
Benefit requires made equivalent variations, still belongs to the scope covered by the invention.
Claims (10)
1. a kind of fidelity coring device, which is characterized in that including outer cylinder and fidelity cabin, the fidelity cabin is set to the outer cylinder
In hollow cavity, the outer cylinder is used for core-drilling, and the fidelity cabin is additionally provided with storage for accommodating the core in the outer cylinder
Energy device, the accumulator are connect with the fidelity cabin, at the pressure and coring of the core in the fidelity cabin to detection
Pressure comparison, the accumulator is used to be pressurized the fidelity cabin or depressurize so that pressure in the fidelity cabin with take
Pressure at core is identical.
2. fidelity coring device as described in claim 1, which is characterized in that the fidelity coring device further includes that pressure is adjusted
Part, the pressure regulator are set between the accumulator and the fidelity cabin, drive the pressure tune by the accumulator
Section part adjusts the pressure in the fidelity cabin, so that the pressure in the fidelity cabin keeps balance.
3. fidelity coring device as claimed in claim 2, which is characterized in that the pressure regulator is piston, the accumulation of energy
Device pushes the piston for providing compressed gas, or is evacuated and retracts the piston；Pressure in the fidelity cabin
When decline, the accumulator provides compressed gas and pushes the piston, so that the fidelity cabin is pressurized and volume-diminished, thus
Keep the pressure in the fidelity cabin constant；When the pressure in the fidelity cabin rises, the accumulator is evacuated and retracts piston, with
Make fidelity cabin decompression and volume increases, to keep the pressure in the fidelity cabin constant.
4. fidelity coring device as described in any one of claims 1 to 3, which is characterized in that be equipped with pressure in the outer cylinder and pass
Sensor, the pressure sensor are used to detect the pressure in the fidelity cabin, and the electric signal of Real-time Feedback pressure.
5. fidelity coring device as claimed in claim 4, which is characterized in that the fidelity coring device includes processing unit,
The processing unit receives the electric signal of the pressure of the pressure sensor feedback, and issues instruction and control the accumulator to institute
It states and inputs compressed gas or the draw gas out of described fidelity cabin in fidelity cabin, so that the pressure in the fidelity cabin takes with described
Pressure at core is identical.
6. fidelity coring device as claimed in claim 5, which is characterized in that be equipped between the accumulator and the fidelity cabin
Connecting pipe, the connecting pipe are equipped with the 4th control valve, and the processing unit is electrically connected with the 4th control valve, and root
The opening and closing of the 4th control valve is controlled according to the electric signal of the pressure in the fidelity cabin of the pressure sensor Real-time Feedback.
7. fidelity coring device as claimed in claim 6, which is characterized in that the 4th control valve is three-way cut-off valve, institute
A connector for stating the 4th control valve is also connected with relief valve, and the relief valve is used to lay down the gas pressure in the fidelity cabin
Power.
8. fidelity coring device as described in claim 1, which is characterized in that the fidelity cabin also passes through pipeline and is connected with the 5th
Control valve, the 5th control valve are connected with pressure gauge, and the pressure gauge is for the pressure in fidelity cabin described in real-time display.
9. fidelity coring device as described in claim 1, which is characterized in that be additionally provided with closure member, the envelope on the outer cylinder
Closing member is equipped with elastic slice, and after in hollow cavity of the fidelity cabin completely into the outer cylinder, the elastic slice drives the envelope
Closing member pop-up, so that the closure member closes the space of the hollow cavity of the outer cylinder in enclosure space.
10. fidelity coring device as claimed in claim 9, which is characterized in that enclosed on the side of the closure member equipped with a circle
Sealing structure, the sealing knot when the closure member is in the state for closing the outer cylinder, on the side of the closure member
Structure is close to the inner wall of the outer cylinder.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495104.9A CN109488241B (en) | 2018-12-07 | 2018-12-07 | Fidelity coring device |
| PCT/CN2018/124153 WO2020113720A1 (en) | 2018-12-07 | 2018-12-27 | Fidelity coring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811495104.9A CN109488241B (en) | 2018-12-07 | 2018-12-07 | Fidelity coring device |
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| CN109488241B CN109488241B (en) | 2024-05-14 |
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| CN201811495104.9A Active CN109488241B (en) | 2018-12-07 | 2018-12-07 | Fidelity coring device |
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| CN113882824A (en) * | 2021-03-11 | 2022-01-04 | 四川大学 | Core high temperature high pressure simulation test platform is got in deep |
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| CN110847835B (en) * | 2019-11-26 | 2023-10-24 | 四川大学 | Deep rock in-situ heat preservation coring device |
| CN110761785A (en) * | 2019-11-26 | 2020-02-07 | 四川大学 | Pressure maintaining cabin structure with glass window |
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| CN111458183A (en) * | 2020-06-05 | 2020-07-28 | 深圳大学 | Split type fidelity corer pressure loading experimental method |
| CN111458183B (en) * | 2020-06-05 | 2022-08-30 | 深圳大学 | Split type fidelity corer pressure loading experimental method |
| CN111521433A (en) * | 2020-06-08 | 2020-08-11 | 四川大学 | Double-push oil source pressurization experimental device |
| CN111764854A (en) * | 2020-07-29 | 2020-10-13 | 四川大学 | Deep rock in-situ quality-guaranteeing coring device and film-forming coring method thereof while drilling |
| CN111764854B (en) * | 2020-07-29 | 2023-08-22 | 四川大学 | Deep rock in-situ quality guarantee coring device and film-forming coring method while drilling |
| CN111734332B (en) * | 2020-07-29 | 2023-08-22 | 四川大学 | Film formation while drilling simulation device and film formation while drilling coring method |
| CN111734332A (en) * | 2020-07-29 | 2020-10-02 | 四川大学 | Film-forming while drilling simulation device and film-forming while drilling coring method |
| CN113882824B (en) * | 2021-03-11 | 2023-03-31 | 四川大学 | Core high temperature high pressure simulation test platform is got in deep |
| CN113882824A (en) * | 2021-03-11 | 2022-01-04 | 四川大学 | Core high temperature high pressure simulation test platform is got in deep |
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