CN207571058U - A kind of Multifunctional core clamper for nmr experiments - Google Patents
A kind of Multifunctional core clamper for nmr experiments Download PDFInfo
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- CN207571058U CN207571058U CN201721484038.6U CN201721484038U CN207571058U CN 207571058 U CN207571058 U CN 207571058U CN 201721484038 U CN201721484038 U CN 201721484038U CN 207571058 U CN207571058 U CN 207571058U
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Abstract
A kind of Multifunctional core clamper for nmr experiments is assembled by main cylinder, preceding pressure head, preceding mandril, rear pressure head, pushing rod, piston, level-one drive end bearing bracket, two level drive end bearing bracket, level-one rear end cap, two level rear end cap, preceding seal sleeve, rear seal sleeve, preceding plug, rear plug, transfer panel, static torque charging assembly, support fixing clasp and laser displacement sensor；This programme is compared with traditional rock core fastener, complicated stress state can be simulated, axis pressure, confining pressure, Pore Pressure and torque can be applied simultaneously to core sample, and the axial deformation of core sample can be measured, and can be controlled when confining pressure loads into trip temperature, to simulate reservoir temperature environment.This programme can also arbitrarily arrange and combine, and then can obtain the nmr experiments data under various difference stress conditions and under various difference temperature-controlled conditions to applying axis press strip part, applying confining pressure condition, application hole press strip part, application static torque condition.
Description
Technical field
The utility model belongs to nmr experiments technical field, more particularly to a kind of for the more of nmr experiments
Function rock core fastener.
Background technology
At present, nuclear magnetic resonance technique with its have it is lossless, quick, accurate and intuitive the characteristics of it is extensive by numerous areas
Using wherein just including coal oil exploits field, by reservoir core progress nmr experiments, can not only analyze storage
The properties such as pore-size distribution, porosity and permeability of layer rock core, can also be to the fluid migration process in reservoir core and porous
The process of deformation and failure of medium reservoir core carries out determining quantifier elimination.
In the nmr experiments for reservoir core, core holding unit is then one of essential experiment instrument,
And the core holding unit applied at present there are function it is single the defects of, principal stress stress state can only be simulated, therefore only exist
Reservoir core characteristic nmr under principal stress state has apparent limitation.And the actual formation residing for reservoir core by
Power state is sufficiently complex, it is desirable to which the reservoir core characteristic nmr for making acquisition is truer, it is necessary to core holding unit
Complicated stress state can be simulated, therefore there is an urgent need for design a kind of Multifunctional core clamping that can simulate complex stress condition
Device.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of Multifunctional core for nmr experiments
Clamper can simulate complicated stress state, can apply axis pressure, confining pressure, Pore Pressure and torque simultaneously to core sample, and
And the axial deformation of core sample can be measured, and can be controlled when confining pressure loads into trip temperature, to simulate
Reservoir temperature environment.
To achieve these goals, the utility model adopts the following technical solution：It is a kind of to be used for the more of nmr experiments
Function rock core fastener, before main cylinder, preceding pressure head, preceding mandril, rear pressure head, pushing rod, piston, level-one drive end bearing bracket, two level
End cap, level-one rear end cap, two level rear end cap, preceding seal sleeve, rear seal sleeve, preceding plug, rear plug and transfer panel；The master
The front end nozzle of cylinder is connected with the rear end nozzle thread seal of level-one drive end bearing bracket, before the front end nozzle and two level of level-one drive end bearing bracket
The rear end nozzle screw thread of end cap is connected, and the preceding plug thread seal is connected to the front end nozzle of two level drive end bearing bracket；The main cylinder
The rear end nozzle of body is connected with the front end nozzle thread seal of level-one rear end cap, rear end nozzle and the two level rear end of level-one rear end cap
The front end nozzle screw thread of lid is connected；Clamping core sample between the preceding pressure head and rear pressure head, is set with examination on core sample
Sample pillar, the preceding pressure head, rear pressure head and core sample are located on the inside of main cylinder；Behind the front end of the preceding pressure head and preceding mandril
End thread seal is connected, and the preceding seal sleeve and piston are set on the body of rod of preceding mandril, and before preceding seal sleeve
Hold the front end inboard wall of tube body sealing snap fit of cylinder and level-one drive end bearing bracket, the piston be located at preceding plug and preceding seal sleeve it
Between, the front end tube body of piston is slidably matched with the rear end inboard wall of tube body sealing of preceding plug, middle part tube body and the two level front end of piston
The middle part inboard wall of tube body sealing of lid is slidably matched, and the rear end nozzle of piston is abutted against with the ladder platform set on the body of rod of preceding mandril and connect
Touch cooperation；The front of plug before the front end tube body of the preceding mandril passes through the central duct of preceding plug and extends to；It is pressed after described
The rear end of head is connected with the sealing of the nose threads of pushing rod, and seal sleeve and the rear plug afterwards are set in the bar of pushing rod
On body, the middle part tube body of rear seal sleeve and the rear end inboard wall of tube body sealing snap fit of level-one rear end cap；Plug after described
Front end tube body is connected with the rear end tube body thread seal of rear seal sleeve, and on rear the front end nozzle of plug and the body of rod of pushing rod
The ladder platform of setting, which abuts against, to be engaged；The rear end tube body of the pushing rod passes through the central duct of rear plug and is blocked up after extending to
The rear of head；The transfer panel thread bush is mounted on the pushing rod body of rod at rear plug rear, is led between transfer panel and rear plug
Several trip bolts are crossed to be connected；Rear end tube body, preceding pressure head, core sample, rear pressure head and the rear sealing shroud of the preceding seal sleeve
The front tube decorum one of cylinder seals off casing cladding by confining pressure, and before confining pressure seal isolation casing and preceding seal sleeve, level-one
Annular confining pressure LOADED CAVITY is formed between end cap, main cylinder, level-one rear end cap and rear seal sleeve；In the level-one drive end bearing bracket and one
Grade rear end cap tube body on be respectively arranged with confining pressure entrance and confining pressure outlet, confining pressure entrance and confining pressure outlet simultaneously with annular confining pressure
LOADED CAVITY communicates；Annular shaft pressure LOADED CAVITY, piston are formed between the front end tube body of the piston and preceding plug and two level drive end bearing bracket
Rear end tube body and two level drive end bearing bracket and preceding seal sleeve between formed annular shaft pressure unloading chamber；In the pipe of the two level drive end bearing bracket
Axis press-in mouth is respectively arranged on body and axis extrudes mouth, axis is pressed into mouth and is communicated with annular shaft pressure LOADED CAVITY, and axis extrudes mouth and annular
Axis pressure unloading chamber communicates.
Pore Pressure loading duct, and the lever front end of preceding mandril are offered in the axial centre of the preceding mandril and preceding pressure head
For Pore Pressure entrance；The axial centre of pressure head and pushing rod offers Pore Pressure unloading duct, and the bar of pushing rod in the rear
Body rear end is exported for Pore Pressure.
On the pressure-bearing contact surface of the preceding pressure head and core sample, on the pressure-bearing contact surface of rear pressure head and core sample
Offer annular gas-guiding structure groove；Annular gas-guiding structure groove on the preceding pressure head is communicated with Pore Pressure loading duct,
The annular gas-guiding structure groove on pressure head is communicated with Pore Pressure unloading duct afterwards, makes Pore Pressure equal by annular gas-guiding structure groove
The even surface for acting on core sample.
Static torque charging assembly is installed on the front end body of rod of the preceding mandril, static torque charging assembly includes power
Arm strut, force counterweight, lifting rope and static torque sensor；The arm of force strut threaded one end is connected on sinciput club shaft,
The force counterweight is suspended on the arm of force strut other end by lifting rope；The static torque sensor is adjacent with arm of force strut and pacifies
On sinciput club shaft.
Laser displacement sensor is provided with immediately ahead of the front end face of the preceding mandril, by laser displacement sensor to preceding
The axial displacement of mandril measures, and the axial crushing deformation amount of core sample is measured indirectly.
Support fixing card is installed on the level-one drive end bearing bracket or two level drive end bearing bracket, level-one rear end cap or two level rear end cap
Ring, support fixing clasp are connected by bolt and are fitted together using split structure.
In the outer of the preceding plug, two level drive end bearing bracket, level-one drive end bearing bracket, level-one rear end cap, two level rear end cap and rear plug
Surface is both provided with spanner and clamps hole, and hole and the assembling of spanner cooperation progress rock core fastener are clamped by spanner.
The beneficial effects of the utility model：
The utility model compared with prior art, can simulate complicated stress state, core sample can be applied simultaneously
Add axis pressure, confining pressure, Pore Pressure and torque, and the axial deformation of core sample can be measured, and loaded in confining pressure
When can be controlled into trip temperature, to simulate reservoir temperature environment.The utility model can also be to applying axis press strip part, applying and enclose
Press strip part applies hole press strip part, applies static torque condition and arbitrarily arrange and combine, so can obtain it is various not
With the nmr experiments data under stress condition and under various different temperature-controlled conditions.
Description of the drawings
Fig. 1 is a kind of stereogram of Multifunctional core clamper for nmr experiments of the utility model；
Fig. 2 is a kind of structure diagram of Multifunctional core clamper for nmr experiments of the utility model；
Fig. 3 is the stereogram of the preceding pressure head of the utility model；
Fig. 4 is the stereogram of the rear pressure head of the utility model；
In figure, 1-main cylinder, 2-preceding pressure head, 3-preceding mandril, 4-rear pressure head, 5-pushing rod, 6-piston, 7-one
Grade drive end bearing bracket, 8-two level drive end bearing bracket, 9-level-one rear end cap, 10-two level rear end cap, 11-preceding seal sleeve, 12-rear sealing
Sleeve, 13-preceding plug, 14-rear plug, 15-transfer panel, 16-core sample, 17-sample pillar, the sealing of 18-confining pressure
Disrance sleeve, 19-annular confining pressure LOADED CAVITY, 20-confining pressure entrance, the outlet of 21-confining pressure, 22-annular shaft pressure LOADED CAVITY,
23-annular shaft pressure unloading chamber, 24-axis press-in mouth, 25-axis extrude mouth, 26-Pore Pressure loading duct, and 27-Pore Pressure unloads
Carry duct, 28-annular gas-guiding structure groove, 29-arm of force strut, 30-force counterweight, 31-lifting rope, 32-static torque biography
Sensor, 33-laser displacement sensor, 34-support fixing clasp, 35-spanner clamping hole, 36-Pore Pressure entrance, 37-
Pore Pressure exports.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in figures 1-4, a kind of Multifunctional core clamper for nmr experiments, including main cylinder 1, preceding pressure
First 2, after preceding mandril 3, rear pressure head 4, pushing rod 5, piston 6, level-one drive end bearing bracket 7, two level drive end bearing bracket 8, level-one rear end cap 9, two level
End cap 10, preceding seal sleeve 11, rear seal sleeve 12, preceding plug 13, rear plug 14 and transfer panel 15；Before the main cylinder 1
End pipe mouth is connected with the rear end nozzle thread seal of level-one drive end bearing bracket 7, front end nozzle and the two level drive end bearing bracket 8 of level-one drive end bearing bracket 7
Rear end nozzle screw thread be connected, preceding 13 thread seal of plug is connected to the front end nozzle of two level drive end bearing bracket 8；The main cylinder
1 rear end nozzle is connected with the front end nozzle thread seal of level-one rear end cap 9, after the rear end nozzle and two level of level-one rear end cap 9
The front end nozzle screw thread of end cap 10 is connected；Clamping core sample 16 between the preceding pressure head 2 and rear pressure head 4, in core sample 16
On be set with sample pillar 17, the preceding pressure head 2, rear pressure head 4 and core sample 16 are located at 1 inside of main cylinder；The preceding pressure head 2
Front end be connected with the rear end thread seal of preceding mandril 3, mandril 3 before the preceding seal sleeve 11 and piston 6 are set in
On the body of rod, and the front end inboard wall of tube body sealing snap fit of the front end cylinder of preceding seal sleeve 11 and level-one drive end bearing bracket 7, the work
For plug 6 between preceding plug 13 and preceding seal sleeve 11, the front end tube body of piston 6 and the rear end inboard wall of tube body of preceding plug 13 are close
Envelope is slidably matched, and the middle part tube body of piston 6 is slidably matched with the middle part inboard wall of tube body sealing of two level drive end bearing bracket 8, the rear end of piston 6
Nozzle is abutted against with the ladder platform set on the body of rod of preceding mandril 3 and is engaged；The front end tube body of the preceding mandril 3 passes through preceding plug
13 central duct and the front for extending to preceding plug 13；The rear end of pressure head 4 and the nose threads of pushing rod 5 seal phase after described
Even, the rear seal sleeve 12 and rear plug 14 are set on the body of rod of pushing rod 5, the middle part tube body of rear seal sleeve 12
With the rear end inboard wall of tube body sealing snap fit of level-one rear end cap 9；The front end tube body of plug 14 and rear seal sleeve 12 after described
Rear end tube body thread seal be connected, and the rear front end nozzle of plug 14 is abutted against with the ladder platform set on the body of rod of pushing rod 5
It is engaged；The rear end tube body of the pushing rod 5 passes through the central duct of rear plug 14 and extends to the rear of rear plug 14；Institute
It states 15 thread bush of transfer panel to be mounted on 5 body of rod of pushing rod at rear 14 rear of plug, pass through between transfer panel 15 and rear plug 14
Several trip bolts are connected；The rear end tube body of the preceding seal sleeve 11, preceding pressure head 2, core sample 16, rear pressure head 4 and rear close
The front tube decorum one of big envelope cylinder 12 seals off casing 18 by confining pressure and coats, and confining pressure seal isolation casing 18 and preceding sealing shroud
Annular confining pressure LOADED CAVITY 19 is formed between cylinder 11, level-one drive end bearing bracket 7, main cylinder 1, level-one rear end cap 9 and rear seal sleeve 12；
Confining pressure entrance 20 and confining pressure outlet 21 are respectively arranged on the tube body of the level-one drive end bearing bracket 7 and level-one rear end cap 9, confining pressure enters
Mouth 20 and confining pressure outlet 21 communicate simultaneously with annular confining pressure LOADED CAVITY 19；The front end tube body of the piston 6 and preceding plug 13 and two
Annular shaft pressure LOADED CAVITY 22, rear end tube body and two level drive end bearing bracket 8 and the preceding seal sleeve 11 of piston 6 are formed between grade drive end bearing bracket 8
Between formed annular shaft pressure unloading chamber 23；Axis press-in mouth 24 and axis pressure are respectively arranged on the tube body of the two level drive end bearing bracket 8
Outlet 25, axis are pressed into mouth 24 and are communicated with annular shaft pressure LOADED CAVITY 22, and axis extrudes mouth 25 and unloading chamber 23 pressed to communicate with annular shaft.
Pore Pressure loading duct 26, and the bar of preceding mandril 3 are offered in the axial centre of the preceding mandril 3 and preceding pressure head 2
Body front end is Pore Pressure entrance 36；The axial centre of pressure head 4 and pushing rod 5 offers Pore Pressure unloading duct 27 in the rear,
And the body of rod rear end of pushing rod 5 exports 37 for Pore Pressure.
It is connect on pressure-bearing contact surface of the preceding pressure head 2 with core sample 16, in the pressure-bearing of rear pressure head 4 and core sample 16
Annular gas-guiding structure groove 28 is offered in contacting surface；Annular gas-guiding structure groove 28 on the preceding pressure head 2 adds with Pore Pressure
It carries duct 26 to communicate, the annular gas-guiding structure groove 28 on rear pressure head 4 is communicated with Pore Pressure unloading duct 27, passes through annular air guide
Texture grooves 28 make Pore Pressure stepless action on the surface of core sample 16.
Static torque charging assembly is installed on the front end body of rod of the preceding mandril 3, static torque charging assembly includes
Arm of force strut 29, force counterweight 30, lifting rope 31 and static torque sensor 32；Before 29 threaded one end of arm of force strut is connected in
On 3 body of rod of mandril, the force counterweight 30 is suspended on 29 other end of arm of force strut by lifting rope 31；The static torque sensor
32 is adjacent with arm of force strut 29 and on preceding 3 body of rod of mandril.
Laser displacement sensor 33 is provided with immediately ahead of the front end face of the preceding mandril 3, passes through laser displacement sensor
The axial displacement of mandril 3 measures before 33 pairs, and the axial crushing deformation amount of core sample 16 is measured indirectly.
Support is installed on the level-one drive end bearing bracket 7 or two level drive end bearing bracket 8, level-one rear end cap 9 or two level rear end cap 10
Fixing clasp 34, support fixing clasp 34 are connected by bolt and are fitted together using split structure.
It blocks up in the preceding plug 13, two level drive end bearing bracket 8, level-one drive end bearing bracket 7, level-one rear end cap 9, two level rear end cap 10 and afterwards
First 14 outer surface is both provided with spanner and clamps hole 35, and hole 35 and the group of spanner cooperation progress rock core fastener are clamped by spanner
Dress.
Illustrate an application process of the utility model below in conjunction with the accompanying drawings：
In the present embodiment, main cylinder 1, preceding pressure head 2 and rear pressure head 4 are believed using corrosion-resistant and high intensity without nuclear magnetic resonance
Number PEEK materials be made, preceding mandril 3, pushing rod 5, piston 6, level-one drive end bearing bracket 7, two level drive end bearing bracket 8, level-one rear end cap 9,
Two level rear end cap 10, preceding seal sleeve 11, rear seal sleeve 12, preceding plug 13, rear plug 14, transfer panel 15, support fixing card
Ring 34 and its all connections are made using 316L stainless steels with bolt and (are all carried out demagnetization processing), sample pillar 17 and are enclosed
Means of press seals disrance sleeve 18 is made of the high intensity fluorine glue hose of no NMR signal.
It before nmr experiments are carried out, needs that core sample 16 is installed in advance, rock core fastener at this time is in and disassembles
State.
Preceding pressure head 2 and preceding mandril 3, rear pressure head 4 and pushing rod 5 are linked together, ensure good seal, then by sample
17 sets of pillar is attached on core sample 16, then by 16 clamping of core sample between preceding pressure head 2 and rear pressure head 4, and core sample
16 coat high-intensity sealing glue with the radially facing surface of preceding pressure head 2 and rear pressure head 4, fluid sealant to be avoided to drop onto during gluing
In annular gas-guiding structure groove 28, ensure core sample 16 with the axially facing surface of preceding pressure head 2 and rear pressure head 4 without glue.At this point, according to
It is secondary to be made of " sample assembly " preceding mandril 3, preceding pressure head 2, core sample 16, sample pillar 17, rear pressure head 4 and pushing rod 5, and
" sample assembly " is placed on one side for use.
Preceding seal sleeve 11 is snapped fitted in level-one drive end bearing bracket 7, ensures good seal, then connects two level drive end bearing bracket 8
It is put into two level drive end bearing bracket 8 onto level-one drive end bearing bracket 7, then by piston 6, finally preceding plug 13 is installed on two level drive end bearing bracket 8,
But preceding plug 13 not screwed completely；Next, sealing shroud before first one end interference of confining pressure seal isolation casing 18 is inserted into
On cylinder 11, then main cylinder 1 is sleeved on outside confining pressure seal isolation casing 18, and 1 one end of main cylinder is connected with level-one drive end bearing bracket 7
It is connected together, then level-one rear end cap 9 is connected to 1 other end of main cylinder, rear seal sleeve 12 is then snapped fitted into level-one rear end
In lid 9, and ensure good seal, and the other end of confining pressure seal isolation casing 18 is inserted into 12 interference of rear seal sleeve simultaneously, most
Two level rear end cap 10 is connected on level-one rear end cap 9 afterwards.At this point, successively by preceding plug 13, two level drive end bearing bracket 8, piston 6, preceding
Seal sleeve 11, level-one drive end bearing bracket 7, confining pressure seal isolation casing 18, main cylinder 1, level-one rear end cap 9, two level rear end cap 10 and
Seal sleeve 12 is formed " casing assembly " afterwards.
Will be assembled at first " sample assembly " fetch, then enable the preceding mandril 3 of " sample assembly " slowly from " outer
The rear seal sleeve 12 of shell assembly " is inserted into, and is pierced by until in the preceding plug 13 from " casing assembly ", then by rear plug 14
After being inserted in pushing rod 5 and gradually screwing in seal sleeve 12, finally preceding plug 13 and rear plug 14 are all screwed completely；It connects down
Come, transfer panel 15 is installed to pushing rod 5, recycles trip bolt that transfer panel 15 and rear plug 14 are fixed together.At this point,
The body structure portion of rock core fastener all installs.
Next start that other functional components are installed.Two groups of support fixing clasps 34 are installed in place first, are then installed
Static torque charging assembly.The installation process of static torque charging assembly is：Static torque sensor 32 is installed in place first,
Then installation arm of force strut 29, the installation screw of mandril 3 before the end of thread of arm of force strut 29 is screwed in, later according to experiment
Demand setting needs the static torque that applies, can (M=mgl, M are torque, and m is quality, and g is gravity by torque arithmetic formula
Acceleration, l are torque arm length) determine that the hanging point of the quality of counterweight 30 and counterweight 30 (changes the arm of force by adjusting hanging point
Length).Laser displacement sensor 33, front end face of the Laser emission end of laser displacement sensor 33 away from preceding mandril 3 are finally installed
About 1 meter or so, the laser displacement sensor 33 that the range selected in the present embodiment is 10mm and resolution ratio is 0.2 μm is i.e.
It can.
Before nmr experiments are carried out, it is also necessary to which fluorocarbon oil loading system and the cuff for preparing a cuff function of temperature control are permanent
The gas-loaded system of tepidarium provides axis for core sample 16 by fluorocarbon oil loading system and loading environment and confining pressure is pressed to load item
Part provides Pore Pressure loading environment by gas-loaded system for core sample 16, the gas-loaded system choosing in the present embodiment
Air source is methane.
The last preparation before nmr experiments is carried out, assembled rock core fastener is moved into trial zone first,
Main cylinder 1 is made vacant state occur in malcoils and its waveguide of connection by two groups of support fixing clasps 34,
So, it can ensure that the waveguide of malcoils and its connection is in not pressured state during experiment, effectively
Avoid the measurement error caused by compressive deformation.Then by fluorocarbon oil loading system be respectively connected to axis press-in mouth 24, axis extrude mouth 25,
Confining pressure entrance 20 and confining pressure outlet 21, and gas-loaded system is respectively connected to Pore Pressure entrance 36 and Pore Pressure outlet 37, when
All systems all after debugging well, can start nmr experiments.
It, can be to applying axis press strip part, applying confining pressure condition, application hole press strip part, application according to actual tests needs
Static torque condition arbitrarily arrange and combine, and then can obtain under various different stress conditions and various not equalities of temperature
Nmr experiments data under the conditions of control.
Scheme in embodiment is not the scope of patent protection to limit the utility model, all without departing from the utility model
Carried out by equivalence enforcement or change, be both contained in the scope of the claims of this case.
Claims (7)
1. a kind of Multifunctional core clamper for nmr experiments, it is characterised in that：Including main cylinder, preceding pressure head, preceding
Mandril, rear pressure head, pushing rod, piston, level-one drive end bearing bracket, two level drive end bearing bracket, level-one rear end cap, two level rear end cap, preceding sealing shroud
Cylinder, rear seal sleeve, preceding plug, rear plug and transfer panel；The front end nozzle of the main cylinder and the rear end pipe of level-one drive end bearing bracket
Mouth thread seal is connected, and the front end nozzle of level-one drive end bearing bracket is connected with the rear end nozzle screw thread of two level drive end bearing bracket, the preceding plug
Thread seal is connected to the front end nozzle of two level drive end bearing bracket；The rear end nozzle of the main cylinder and the front end nozzle of level-one rear end cap
Thread seal is connected, and the rear end nozzle of level-one rear end cap is connected with the front end nozzle screw thread of two level rear end cap；The preceding pressure head with
Clamping core sample between pressure head afterwards is set with sample pillar, the preceding pressure head, rear pressure head and core sample on core sample
On the inside of main cylinder；The front end of the preceding pressure head is connected with the rear end thread seal of preceding mandril, the preceding seal sleeve and work
Before plug is set on the body of rod of mandril, and the front end cylinder of preceding seal sleeve and the front end inboard wall of tube body of level-one drive end bearing bracket are close
Snap fit is sealed, the piston is between preceding plug and preceding seal sleeve, the front end tube body of piston and the rear end pipe of preceding plug
Body inner wall sealing is slidably matched, and the middle part tube body of piston is slidably matched with the middle part inboard wall of tube body sealing of two level drive end bearing bracket, piston
Rear end nozzle abut against and be engaged with the ladder platform set on the body of rod of preceding mandril；Before the front end tube body of the preceding mandril passes through
The central duct of plug and the front for extending to preceding plug；The rear end of pressure head and the nose threads of pushing rod seal phase after described
Even, the rear seal sleeve and rear plug are set on the body of rod of pushing rod, the middle part tube body and level-one of rear seal sleeve
The rear end inboard wall of tube body sealing snap fit of rear end cap；The rear end tube body spiral shell of the front end tube body of plug and rear seal sleeve after described
Line sealing is connected, and the ladder platform set on the rear front end nozzle of plug and the body of rod of pushing rod is abutted against and is engaged；After described
The rear end tube body of mandril passes through the central duct of rear plug and extends to the rear of rear plug；The transfer panel thread bush is mounted at
Afterwards on the pushing rod body of rod at plug rear, it is connected between transfer panel and rear plug by several trip bolts；The preceding sealing shroud
The rear end tube body of cylinder, preceding pressure head, core sample, rear pressure head and rear seal sleeve the front tube decorum one sealed off and cover by confining pressure
Pipe coats, and confining pressure seal isolation casing and preceding seal sleeve, level-one drive end bearing bracket, main cylinder, level-one rear end cap and rear sealing shroud
Annular confining pressure LOADED CAVITY is formed between cylinder；Confining pressure is respectively arranged on the tube body of the level-one drive end bearing bracket and level-one rear end cap to enter
Mouth and confining pressure outlet, confining pressure entrance and confining pressure outlet communicate simultaneously with annular confining pressure LOADED CAVITY；The front end tube body of the piston with
Annular shaft pressure LOADED CAVITY, rear end tube body and two level drive end bearing bracket and the preceding sealing shroud of piston are formed between preceding plug and two level drive end bearing bracket
Annular shaft pressure unloading chamber is formed between cylinder；Axis press-in mouth is respectively arranged on the tube body of the two level drive end bearing bracket and axis extrudes
Mouthful, axis is pressed into mouth and is communicated with annular shaft pressure LOADED CAVITY, and axis extrudes mouth and unloading chamber pressed to communicate with annular shaft.
2. a kind of Multifunctional core clamper for nmr experiments according to claim 1, it is characterised in that：
The axial centre of the preceding mandril and preceding pressure head offers Pore Pressure loading duct, and the lever front end of preceding mandril is pressed into for hole
Mouthful；The axial centre of pressure head and pushing rod offers Pore Pressure unloading duct in the rear, and the body of rod rear end of pushing rod is hole
Gap extrudes mouth.
3. a kind of Multifunctional core clamper for nmr experiments according to claim 2, it is characterised in that：
Ring is offered on the pressure-bearing contact surface of the preceding pressure head and core sample, on the pressure-bearing contact surface of rear pressure head and core sample
Shape gas-guiding structure groove；Annular gas-guiding structure groove on the preceding pressure head is communicated with Pore Pressure loading duct, on rear pressure head
Annular gas-guiding structure groove is communicated with Pore Pressure unloading duct, makes Pore Pressure stepless action in rock by annular gas-guiding structure groove
The surface of heart sample.
4. a kind of Multifunctional core clamper for nmr experiments according to claim 1, it is characterised in that：
Static torque charging assembly is installed, static torque charging assembly includes arm of force strut, applies on the front end body of rod of the preceding mandril
Power counterweight, lifting rope and static torque sensor；The arm of force strut threaded one end is connected on sinciput club shaft, the force weight
Code is suspended on the arm of force strut other end by lifting rope；The static torque sensor is adjacent with arm of force strut and mounted on preceding mandril
On the body of rod.
5. a kind of Multifunctional core clamper for nmr experiments according to claim 1, it is characterised in that：
Laser displacement sensor is provided with immediately ahead of the front end face of the preceding mandril, by laser displacement sensor to the axial direction of preceding mandril
Displacement measures, and the axial crushing deformation amount of core sample is measured indirectly.
6. a kind of Multifunctional core clamper for nmr experiments according to claim 1, it is characterised in that：
Support fixing clasp is installed, support is solid on the level-one drive end bearing bracket or two level drive end bearing bracket, level-one rear end cap or two level rear end cap
Snap ring is determined using split structure, and is connected and fitted together by bolt.
7. a kind of Multifunctional core clamper for nmr experiments according to claim 1, it is characterised in that：
The preceding plug, two level drive end bearing bracket, level-one drive end bearing bracket, level-one rear end cap, two level rear end cap and rear plug outer surface be respectively provided with
There is spanner to clamp hole, hole and the assembling of spanner cooperation progress rock core fastener are clamped by spanner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721484038.6U CN207571058U (en) | 2017-11-09 | 2017-11-09 | A kind of Multifunctional core clamper for nmr experiments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721484038.6U CN207571058U (en) | 2017-11-09 | 2017-11-09 | A kind of Multifunctional core clamper for nmr experiments |
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| Publication Number | Publication Date |
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| CN207571058U true CN207571058U (en) | 2018-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721484038.6U Expired - Fee Related CN207571058U (en) | 2017-11-09 | 2017-11-09 | A kind of Multifunctional core clamper for nmr experiments |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779856A (en) * | 2019-11-20 | 2020-02-11 | 中国核动力研究设计院 | Sample installation device and method for lead-bismuth alloy melt corrosion test |
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2017
- 2017-11-09 CN CN201721484038.6U patent/CN207571058U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110779856A (en) * | 2019-11-20 | 2020-02-11 | 中国核动力研究设计院 | Sample installation device and method for lead-bismuth alloy melt corrosion test |
| CN110779856B (en) * | 2019-11-20 | 2022-05-20 | 中国核动力研究设计院 | Sample installation device and method for lead-bismuth alloy melt corrosion test |
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