CN110118667A - A kind of rock sample cutting broken rock experimental provision and its experimental method - Google Patents
A kind of rock sample cutting broken rock experimental provision and its experimental method Download PDFInfo
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- CN110118667A CN110118667A CN201910448489.1A CN201910448489A CN110118667A CN 110118667 A CN110118667 A CN 110118667A CN 201910448489 A CN201910448489 A CN 201910448489A CN 110118667 A CN110118667 A CN 110118667A
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Abstract
A kind of rock sample cutting broken rock experimental provision of the present invention and its experimental method, including workbench, and the control cabinet, the fixed device, cutting apparatus, regulation device that are set on workbench；Fixed device includes two symmetrically arranged pressing plates and a baffle, the pressing plate rear is equipped with pressing plate and pushes hydraulic cylinder, pressing plate pushes hydraulic cylinder and is connected to pressing plate by included piston rod, and the baffle is vertically installed in pressing plate side, and the region that baffle and pressing plate surround is for placing rock sample；Cutting apparatus cuts rock sample above rock sample, and the present invention is additionally provided with environment simulator, can simulate high temperature, liquid phase and hyperbaric environment.The present invention passes through the design to rock sample cutting broken rock experimental provision structure, mating corresponding method, the broken rock test under different cutting depth, speed and cutting tooth form can be met, the optimization design of drill bit and drilling parameter optimization have directive significance to the present invention under the Cracking Mechanism and deep high temperature and high pressure environment of rock under true downhole environment for studying.
Description
Technical field
The present invention relates to Oil & Gas Drilling Technology field, especially a kind of oil/gas well drill bit broken rock experimental facilities, and in particular to
A kind of rock sample cutting broken rock experimental provision and its experimental method.
Background technique
China's Land petroleum exploration in recent years is constantly expanded to deep layer ultra deep, and in the 21st century, deep layer exploration obtains one
Serial important breakthrough: the lands such as wheel south-Tahe, the medium Marine Carbonate Rocks large oil & gas province of tower and great Bei, gram depth are found in Tarim Basin
Phase clastic rock Gas Fields；The giant carbonate gas fields such as general light, Long Gang, high stone ladder are found in Sichuan；Erdos, Bohai Sea Gulf with
Carbonate rock, volcanic rock and the clastic rock field of Song-liao basin also obtain great discovery.Eastern region is in 4500m with deep, western
Area is obtained great exploration and is broken through in 6000m with deep, the whole downward 1500~2000m of oil-gas exploration depth, wherein Tarim Basin is oily
Field explores well depth continuous 4 years more than 6000m, and breaches 8000m depth critical point (7 well well depth 8023m of gram depth), eastern basin
It explores well depth and breaks through 6000m (1 well well depth 6027m of ox east).It can be seen that deep layer has become, Land petroleum exploration in China's is great to be connect
It is one of following most important development field of petroleum industry and China's oil the Fashion of Future oil exploration and exploitation for field
Most important strategy field.It is universal under high temperature and pressure effect but since deep rock stratum bottom rock external environment is sufficiently complex
Have the characteristics that hardness is big, plasticity is strong, abrasiveness is strong, drillability is poor, causes the problem that drilling efficiency is low, at high cost extremely prominent
Out.Therefore, it is of crucial importance that high temperature, the rock breaking method under condition of high voltage and mechanism correlative study are carried out.
In this regard, industry carried out some researchs and retrieval section achievement, such as application No. is 201811475779.7 China
Disclosure of the invention document " real-time testing system cut under condition of different temperatures for High temperature rocks ", is that rock sample is passed through cylinder
It is fixed, and a gap is reserved, cutting tooth is protruded into cylinder, and rock sample is cut by gap.But in this way, due to sky
Between limitation, small part rock sample can only be cut, only can be carried out one with portion rock sample and test twice, it is difficult to obtained average
Data cannot overcome random error, and space where cutting tooth is narrow, it is difficult to larger cutting power is provided, it is not competent high-strength
The cutting of degree, high abrasive rock, meanwhile, shaft bottom high confining pressure and mud cannot be simulated for bottom rock using this programme
Chip hold down effect, and true subsurface environment have larger difference.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of rock sample cutting broken rock experimental provision and its experimental method, by rock
The design of stone cutting experiment apparatus structure, can better rock cutting, meet different cutting depth, speed and cutting
Test under tooth form, and be the shattering process of real simulation bottom rock, the environmental simulations module such as temperature, pressure is added, it is made
Shattering process of the rock in the case where boring tooth shear action under high-temperature and high-pressure conditions can be simulated, the present invention is for studying true downhole environment
The Cracking Mechanism of lower rock and for instructing under the high temperature and high pressure environment of deep the optimization design of drill bit and drilling parameter optimization to have weight
Want directive significance.
The technical scheme is that
A kind of rock sample cutting broken rock experimental provision, including rectangular workbench and the control being set on workbench
Case, fixed device, cutting apparatus, regulation device；
The control cabinet is set to workbench one end；
The fixed device is set to the other end of workbench, and fixed device includes two symmetrically arranged pressing plates and one
Baffle is located at workbench two sides, and the pressing plate rear is equipped with pressing plate and pushes hydraulic cylinder, and pressing plate pushes hydraulic cylinder by carrying
Piston rod be connected to pressing plate, the baffle is vertically installed in pressing plate side, and the region that baffle and pressing plate surround is for placing rock
Sample；
The cutting apparatus includes cutting module and motion module, the motion module include support system and dynamical system
System, the support system include four slide bar pillars, a slide bar are arranged between the top of every two slide bar pillar, slide bar is close
Workbench two sides, and with worktable upper surface and side all keeping parallelisms；The dynamical system includes that cutting mechanism push is hydraulic
Cylinder, cutting mechanism push hydraulic cylinder and are connected to the cutting module by included piston rod, and the cutting module includes cutting
Mechanism and cutting mechanism fixator, cutting mechanism fixator both ends are equipped with lantern ring, and are set on slide bar, and cutting mechanism is solid
Determine to connect in the middle part of device with cutting mechanism.
Further, the cutting tooth width is 7~19mm, and top rake is respectively 0 °~25 °.
Further, at the top of the cutting tooth and back is separately installed with sensor, tests the tangential force and method of cutting tooth
Xiang Li.
Further, in the workbench, be equipped with heating device in baffle and pressing plate near zone, specifically baffle with
Heating plate is equipped with below pressing plate, the heating plate is equipped with heater wire and is connected to control cabinet.
Further, the workbench be equipped with environment simulator, the environment simulator include metal framework and
Glass panel, environment simulator cover outside and the upper area of baffle and pressing plate；It is equipped on environment simulator multiple
Perforation, the hydraulic stem of the pressing plate push hydraulic cylinder, hydraulic stem, the slide bar of cutting mechanism push hydraulic cylinder pass through
Perforation is equipped with sealing device across environment simulator at perforation；
The environment simulator, at the top of glass panel be detachable structure, one side pass through hinge and metal frame
Frame connection, the other side are equipped with buckle, and four side of glass panel at top is equipped with sealing joint strip, realizes after compressing with metal framework close
Envelope.
Further, the rock sample cutting broken rock experimental provision is additionally provided with liquid phase feeding mechanism, and liquid phase feeding mechanism includes
Flow container, liquid pump, liquid inlet pipeline, liquid exit line, the liquid inlet pipeline are connected to the environment simulator
Side is simultaneously protruded into inside environment simulator, and the liquid exit line is connected to the another side of the environment simulator simultaneously
It protrudes into inside environment simulator.
Further, the contact position of the liquid exit line and environment simulator is at environment simulator side bottom
Portion.
Further, the rock sample cutting broken rock experimental provision is additionally provided with pressurizing device, and the pressurizing device is with pressurization
Pipeline, and it is connected to environment simulator, relief tube is equipped at the top of the environment simulator.
A kind of experimental method of rock sample cutting broken rock experimental provision, includes the following steps:
S1, rock sample is prepared, is processed as rectangular hexahedron structure, and outer surface is polished smooth, surface undulation is not
More than 0.1mm；
S2, it will be opened at the top of environment simulator, be put into rock sample, rock sample back is made to be close to baffle, then push two sides
Pressing plate clamps rock sample
S3, the pressing plate for finely tuning two sides again, are adjusted to horizontal position to be tested for rock sample；
S4, it is adjusted to required simulated environment, then by regulation device, adjusts cutting depth regulating mechanism, make cutting tooth
It is moved to proper height；
S5, cutting speed is set, starting cutting mechanism pushes hydraulic cylinder, after completing this cutting, obtains by sensor
To Cutting data；
S6, it is needed if any multiple test, then repeatedly step S3-S5, until obtaining required data group number.
Further, the step S4, the Adjustment precision of height are 0.01mm.
The beneficial effects of the present invention are:
1, using device provided by the present invention, the same plane of rock sample repeatedly can be cut in one experiment
Experiment, and the cutting depth of adjustable cutting tooth acquire Cutting data；
2, using heating device, the entire environment centered on rock sample is heated, simulated formation temperature can heat
To 300 DEG C, it is made more to meet true ground environment, provides better environmental condition for the acquisition of Cutting data；
3, using environment simulator, can the limit temperature of heating region inside it be avoided heat loss, is kept
Temperature is constant, and reduces the influence to periphery personnel；
4, the present invention is capable of the liquid phase environment of simulated formation environment, more really simulates rock sample in liquid phase environment to cutting
The influence of data；
5, the present invention is capable of the pressure environment of simulated formation environment, more really simulates rock sample in hyperbaric environment to cutting
The influence of data.
6, the present invention can simulated air drilling well, realize the simulation of a variety of drilling models.
Detailed description of the invention
Fig. 1 is vertical view figure structure schematic representation of the invention；
Fig. 2 is that the structural schematic diagram after rock sample is installed in Fig. 1；
Fig. 3 is the main view of Fig. 2；
Fig. 4 is one schematic diagram of a-quadrant internal structure scheme of Fig. 3；
Fig. 5 is two schematic diagram of a-quadrant internal structure scheme of Fig. 3；
Fig. 6 is the main view of embodiment 2；
Fig. 7 is the top view of embodiment 2；
Fig. 8 is the main view of embodiment 4；
Fig. 9 is the top view of embodiment 4；
Figure 10 is the rock sample after cutting experiment；
Figure 11 is that rock sample sample processes polishing operation；
Figure 12 is rock sample.
It is as shown in the figure:
1, workbench, 2, control cabinet, 3, slide bar pillar, 4, slide bar, 5, pressing plate push hydraulic cylinder, 6, pressing plate, 7, cutter
Structure fixator, 8, cutting mechanism, 801, cutting depth regulating mechanism, 802 be tooth fixator, 803, cutting tooth, 804, rail block,
8041, rack gear, 805, movable block, 806, mobile bar, 807, screw rod, 808, feed screw nut, 809, screw rod stepper motor, 9, cutting
Mechanism push hydraulic cylinder, 10, regulation device, 11, baffle, 12, pedestal, 13, rock sample, 14, pressurizing device, 15, pressurized pipeline,
16, relief tube, 17, environment simulator, 18, heating plate, 19, heater wire, 20, liquid phase feeding mechanism, 21, liquid inlet duct
Line, 22, liquid exit line.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1:
As shown in Figure 1-3, a kind of rock sample cuts broken rock experimental provision, including rectangular workbench 1 and it is set to work
Make control cabinet 2, the fixed device, cutting apparatus, regulation device 10 on platform 1, is equipped with pedestal 12 below workbench 1；
The control cabinet 2 is set to 1 one end of workbench, and 2 side of control cabinet is equipped with switch gate, inside be placed with automatically controlled system
Motor, electric wire, radiator (such as fan), hydraulic oil pump group needed for uniting；
The regulation device 10 is placed on workbench 1 and fixes, and regulation device 10 can be laptop, plate electricity
Brain, industrial personal computer etc..
The fixed device is set to the other end of workbench 1, and fixed device includes two symmetrically arranged pressing plates 6 and one
A baffle 11 is located at 1 two sides of workbench, and 6 rear of pressing plate is equipped with pressing plate and pushes hydraulic cylinder 5, and pressing plate pushes hydraulic cylinder 5
It is connected to pressing plate 6 by included piston rod, pressing plate push hydraulic cylinder 5 is connected to hydraulic in control cabinet 2 by hydraulic line
Oil pump group, the baffle 11 are vertically installed in 6 side of pressing plate and use far from the region that 2 side of control cabinet, baffle 11 and pressing plate 6 surround
In placement rock sample 13；
The cutting apparatus includes cutting module and motion module, the motion module include support system and dynamical system
System, the support system include four slide bar pillars 3, the top for the slide bar pillar 3 that every two is arranged along 1 length direction of workbench
Between be arranged a slide bar 4, slide bar 4 close to 1 two sides of workbench, and with 1 upper surface of workbench and side all keeping parallelisms；It is described
Dynamical system includes cutting mechanism push hydraulic cylinder 9, and cutting mechanism push hydraulic cylinder 9 is connected to described by included piston rod
Module is cut, the cutting module includes cutting mechanism 8 and cutting mechanism fixator 7, and 7 both ends of cutting mechanism fixator are set
There is lantern ring, and is set on slide bar 4 (being sliding friction between lantern ring and slide bar 4, be coated with lubricating grease resistant to high temperatures on the inside of lantern ring).
Such as Fig. 4-5, there are two types of scheme, schemes one to fix including cutting depth regulating mechanism 801, tooth for the cutting mechanism 8
Device 802, cutting tooth 803,801 side top of cutting depth regulating mechanism are connected to 7 middle part of cutting mechanism fixator, cutting
It is rail slider structure, the track including being set to 801 interior sidewall surface of cutting depth regulating mechanism inside depth adjusting mechanism 801
Block 804,804 side of rail block are equipped with rack gear 8041, and movable block 805 is connected on the outside of rack gear 8041, and (movable block 805 passes through in it
The wheel and rack 8041 in portion connects, and miniature clockwise and anticlockwise motor, miniature clockwise and anticlockwise motor pass through electricity to the gear band of movable block 805 again
Line is connected to regulation device 10), mobile bar 806 is connected on the outside of movable block 805,806 bottom of mobile bar connects fixator with teeth
802, scheme two includes cutting depth regulating mechanism 801, tooth fixator 802, cutting tooth 803, in cutting depth regulating mechanism 801
Inner top is equipped with screw rod stepper motor 809, is connected with screw rod 807 below screw rod stepper motor 809, and silk is equipped on screw rod 807
Stem nut 808, feed screw nut's bottom outside are equipped with the connecting rod for connecting down to tooth fixator 802, pass through screw rod stepper motor 809
Rotation, and then drive screw rod 807 rotate, thus drive feed screw nut 808 and linkage tooth fixator 802 move up and down；Tooth
Fixator 802 stretches out cutting depth regulating mechanism 801, and tooth fixator 802 and the intersection of cutting depth regulating mechanism 801 are equipped with
Sealed packing, it is ensured that it can realize dynamic sealing, and cutting tooth 803, the cutting tooth 803 is fixedly mounted in 802 bottom of tooth fixator
Width is 7~19mm, and top rake is respectively 0 °~25 °, and 803 material of cutting tooth is diamond.
803 top of cutting tooth and back are separately installed with sensor, test the tangential force and normal direction of cutting tooth 803
Power.The sensor model number is ZNHBM-200KG, and precision 0.1% also has and is set to cutting depth regulating mechanism 801
Interior transmitter, model ZNBSQ.
Embodiment 2:
As shown in fig. 6-7, in the workbench 1 of rock sample cutting experiment platform described in embodiment 1, in baffle 11 and pressing plate 6
Near zone is equipped with heating device, and heating plate 18 is specifically equipped with below baffle 11 and pressing plate 6, and the heating plate 18, which is equipped with, to be added
Hot line 19 is simultaneously connected to control cabinet 2, and heating plate uses mica heating sheet, and highest can be heated to 300 DEG C.
To adapt to simulated formation environment, the electric wire in sensor and cutting mechanism 8 is all made of high temperature resistant cable, such as ABHBR
Temperature-resistant fire-proof flexible cable.
The workbench 1 is equipped with environment simulator 17, and the environment simulator 17 includes metal framework and glass
Panel, environment simulator 17 cover outside and the upper area of baffle 11 and pressing plate 6；It is equipped on environment simulator 17 more
A perforation, hydraulic stem, the cutting mechanism of the pressing plate push hydraulic cylinder 5 push hydraulic stem, the slide bar 4 of hydraulic cylinder 9
By perforation across environment simulator 17, sealing device is equipped at perforation, such as packing_seal part, and corresponding hydraulic
Stop-leak compound is smeared on bar and slide bar 4；
The environment simulator 17, at the top of glass panel be detachable structure, one side pass through hinge and metal
Frame connection, the other side are equipped with buckle, and four side of glass panel at top is equipped with sealing joint strip (silica gel refractory seals adhesive tape), with
Metal framework realizes sealing after compressing.
The rock sample cutting experiment platform is additionally provided with pressurizing device 14, and the pressurizing device 14 has pressurized pipeline 15, and
It is connected to environment simulator 17, is equipped with relief tube 16 at the top of the environment simulator 17.It is nitrogen in pressurizing device 14,
Relief tube 16 is opened by regulation device 10 after experiment, discharges high pressure gas.
Since high pressure gas is higher for sealing requirements, the bottom of metal framework is welded on workbench 1, metal frame
Also sealant thorough seal is used between frame and glass panel, glass panel is the tempered glass of double-layered thickened panel, is both enhanced
Heat insulation effect also enhances effect of resist compression.
Embodiment 3:
For device provided by embodiment 2, it is mainly used for air drilling experiment and simulates, experimental method, including it is as follows
Step:
S1, rock sample 13 is prepared, is processed as rectangular hexahedron structure (preferably cube structure), and outer surface is polished
Smooth, surface undulation is no more than 0.1mm；
S2, it will be opened at the top of environment simulator 17, be put into rock sample 13, so that 13 back of rock sample is close to baffle 11, then push away
The pressing plate 6 of dynamic two sides, clamps rock sample 13；
S3, the pressing plate 6 for finely tuning two sides again, are adjusted to horizontal position to be tested for rock sample 13；Specifically, pass through two
Pressing plate adjusts the transverse shifting of rock, cut it is primary after, allow rock transverse shifting (a such as side plate is mobile to retreat certain distance,
Another side plate keeps up with and compresses again), start second and cuts.
S4, it is adjusted to required simulated environment, then by regulation device 10, adjusts cutting depth regulating mechanism 801, make to cut
It cuts tooth 803 and is moved to proper height；
S5, cutting speed is set, starting cutting mechanism pushes hydraulic cylinder 9, after completing this cutting, obtains by sensor
To Cutting data；Rock sample 13 after test is as shown in Figure 10,
S6, it is needed if any multiple test, then repeatedly step S3-S5, until obtaining required data group number.
The step S1, production method are, by 13 machine-shaping of rock sample of acquisition, used rock sample is natural outcrop
Rock, such as sandstone, limestone, shale, granite etc. need to test its verticality as shown in figure 11, after processing, it is ensured that are rectangle six
Face body structure, as shown in figure 12.
The step S4, the Adjustment precision of height are 0.01mm.
The step S4, required simulated environment, such as hyperbaric environment, open pressurizing device 14, then open and adjust plus
Valve on pressure pipeline 15, makes it to pressurising in environment simulator 17, is equipped with pressure gauge (in figure not in environment simulator 17
Show), test pressure closes pressurizing device 14 after reaching desirable value, then starts cutting experiment, after experiment, passes through regulation
Device 10 opens relief tube 16, discharges high pressure gas, and release process is slowly decompression；
The step S4, required simulated environment, such as hot environment open heating plate.
Embodiment 4:
As Figure 8-9, in the workbench 1 of rock sample cutting experiment platform described in embodiment 1, in baffle 11 and pressing plate 6
Near zone is equipped with heating device, and heating plate 18 is specifically equipped with below baffle 11 and pressing plate 6, and the heating plate 18, which is equipped with, to be added
Hot line 19 is simultaneously connected to control cabinet 2.
The workbench 1 is equipped with environment simulator 17, and the environment simulator 17 includes metal framework and glass
Panel, environment simulator 17 cover outside and the upper area of baffle 11 and pressing plate 6；It is equipped on environment simulator 17 more
A perforation, hydraulic stem, the cutting mechanism of the pressing plate push hydraulic cylinder 5 push hydraulic stem, the slide bar 4 of hydraulic cylinder 9
By perforation across environment simulator 17, sealing device is equipped at perforation, such as packing_seal part, and corresponding hydraulic
Stop-leak compound is smeared on bar and slide bar 4；
The environment simulator 17, at the top of glass panel be detachable structure, one side pass through hinge and metal
Frame connection, the other side are equipped with buckle, and four side of glass panel at top is equipped with sealing joint strip (silica gel refractory seals adhesive tape), with
Metal framework realizes sealing after compressing.
The rock sample cutting experiment platform is additionally provided with liquid phase feeding mechanism 20, and liquid phase feeding mechanism 20 includes that flow container (is used for
Store drilling mud), liquid pump (slush pump is not shown in the figure), liquid inlet pipeline 21, liquid exit line 22, the liquid
Suction line 21 is connected to the side of the environment simulator 17 and protrudes into inside environment simulator 17, the liquid outlet
Pipeline 22 is connected to the another side of the environment simulator 17 and protrudes into inside environment simulator 17.Liquid pump can be to system
Apply that 20MPa is hydraulic (if there is higher level hydraulic demand, need to carry out strengthening reconstruction to environment simulator 17, including by glass
Panel is changed to solid metal plate, reinforces metal framework etc.), it is ensured that experimental situation can simulate the formation condition under hydraulic environment.
The contact position of the liquid exit line 22 and environment simulator 17 in 17 side bottom of environment simulator,
Convenient for the outflow of later period liquid phase.
Since highly pressurised liquid is higher for sealing requirements, the bottom of metal framework is welded on workbench 1, metal frame
Also sealant thorough seal is used between frame and glass panel, glass panel is the tempered glass of double-layered thickened panel, is both enhanced
Heat insulation effect also enhances effect of resist compression.
Embodiment 5:
For device provided by embodiment 4, experimental method includes the following steps:
S1, rock sample 13 is prepared, is processed as rectangular hexahedron structure (preferably cube structure), and outer surface is polished
Smooth, surface undulation is no more than 0.1mm；
S2, it will be opened at the top of environment simulator 17, be put into rock sample 13, so that 13 back of rock sample is close to baffle 11, then push away
The pressing plate 6 of dynamic two sides, clamps rock sample 13；
S3, the pressing plate 6 for finely tuning two sides again, are adjusted to horizontal position to be tested for rock sample 13；Specifically, pass through two
Pressing plate adjusts the transverse shifting of rock, cut it is primary after, allow rock transverse shifting (a such as side plate is mobile to retreat certain distance,
Another side plate keeps up with and compresses again), start second and cuts.
S4, it is adjusted to required simulated environment, then by regulation device 10, adjusts cutting depth regulating mechanism 801, make to cut
It cuts tooth 803 and is moved to proper height；
S5, cutting speed is set, starting cutting mechanism pushes hydraulic cylinder 9, after completing this cutting, obtains by sensor
To Cutting data；Rock sample 13 after test is as shown in Figure 10,
S6, it is needed if any multiple test, then repeatedly step S3-S5, until obtaining required data group number.
The step S1, production method are, by 13 machine-shaping of rock sample of acquisition, used rock sample is natural outcrop
Rock, such as sandstone, limestone, shale, granite etc., surface of then polishing need to test as shown in figure 11, after processing it vertically
Degree, it is ensured that be rectangular hexahedron structure, as shown in figure 12.
The step S4, the Adjustment precision of height are 0.01mm.
The step S4, required simulated environment, such as liquid phase environment then open the liquid pump of liquid phase feeding mechanism 20, from liquid
Liquid phase is injected environment simulator 17 by body suction line 21, until liquid phase is full of device, and is adjusted pressure to desirable value, is infiltrated
No less than 30min, then start cutting experiment.
The rock sample cutting experiment platform is additionally provided with liquid phase feeding mechanism 20, and liquid phase feeding mechanism 20 includes flow container, liquid pump
(not shown), liquid inlet pipeline 21, liquid exit line 22, the liquid inlet pipeline 21 are connected to the environment mould
The side of quasi- device 17 is simultaneously protruded into inside environment simulator 17, and the liquid exit line 22 is connected to the environmental simulation dress
It sets 17 another side and protrudes into inside environment simulator 17.
The contact position of the liquid exit line 22 and environment simulator 17 in 17 side bottom of environment simulator,
Convenient for the outflow of later period liquid phase.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of rock sample cuts broken rock experimental provision, including rectangular workbench, which is characterized in that further include being set to work
Control cabinet, fixed device, cutting apparatus, regulation device on platform；
The control cabinet is set to workbench one end；
The fixed device is set to the other end of workbench, and fixed device includes two symmetrically arranged pressing plates and a gear
Plate is located at workbench two sides, and the pressing plate rear is equipped with pressing plate and pushes hydraulic cylinder, and pressing plate push hydraulic cylinder passes through included
Piston rod is connected to pressing plate, and the baffle is vertically installed in pressing plate side, and the region that baffle and pressing plate surround is for placing rock sample；
The cutting apparatus includes cutting module and motion module, the motion module include support system and dynamical system, institute
Stating support system includes four slide bar pillars, a slide bar is arranged between the top of every two slide bar pillar, slide bar is close to work
Platform two sides, and with worktable upper surface and side all keeping parallelisms；The dynamical system includes cutting mechanism push hydraulic cylinder, is cut
Cut mechanism push hydraulic cylinder and the cutting module be connected to by included piston rod, the cutting module include cutting mechanism with
Cutting mechanism fixator, cutting mechanism fixator both ends are equipped with lantern ring, and are set on slide bar, in cutting mechanism fixator
Portion is connect with cutting mechanism.
2. a kind of rock sample according to claim 1 cuts broken rock experimental provision, which is characterized in that the cutting mechanism includes
Cutting depth regulating mechanism, cutting tooth fixed device, cutting tooth, the cutting depth regulating mechanism side top are connected to cutting
In the middle part of mechanism fixer, cutting depth regulating mechanism bottom is connected with the fixed device of cutting tooth, and the fixed device of cutting tooth stretches out
Cutting depth regulating mechanism simultaneously fixes cutting tooth in its bottom.
3. a kind of rock sample according to claim 2 cuts broken rock experimental provision, which is characterized in that at the top of the cutting tooth and
Back is separately installed with sensor, the tangential force and normal force of cutting tooth in test cutting rock break-off process.
4. a kind of rock sample according to claim 3 cuts broken rock experimental provision, which is characterized in that in the workbench,
Baffle and pressing plate near zone are equipped with heating device.
5. a kind of rock sample according to claim 4 cuts broken rock experimental provision, which is characterized in that the workbench is equipped with
Environment simulator, the environment simulator include metal framework and glass panel, and environment simulator covers baffle and pressure
The outside of plate and upper area；Multiple perforation, the hydraulic stem of the pressing plate push hydraulic cylinder, institute are equipped on environment simulator
Hydraulic stem, the slide bar for stating cutting mechanism push hydraulic cylinder pass through perforation across environment simulator, are equipped at perforation
Sealing device；
The environment simulator, at the top of glass panel be detachable structure, one side is connected by hinge and metal framework
It connects, the other side is equipped with buckle, and four side of glass panel at top is equipped with sealing joint strip, realizes and seals after compressing with metal framework.
6. a kind of rock sample according to claim 5 cuts broken rock experimental provision, which is characterized in that the rock sample cuts broken rock
Experimental provision is additionally provided with liquid phase feeding mechanism, and liquid phase feeding mechanism includes flow container, liquid pump, liquid inlet pipeline, liquid outlet tube
Line, the liquid inlet pipeline are connected to the side of the environment simulator and protrude into inside environment simulator, the liquid
Body outlet line is connected to the another side of the environment simulator and protrudes into inside environment simulator.
7. a kind of rock sample according to claim 6 cuts broken rock experimental provision, which is characterized in that the liquid exit line
Contact position with environment simulator is in environment simulator side bottom.
8. a kind of rock sample according to claim 5 cuts broken rock experimental provision, which is characterized in that the rock sample cuts broken rock
Experimental provision is additionally provided with pressurizing device, and the pressurizing device has pressurized pipeline, and is connected to environment simulator, the environment
Relief tube is equipped at the top of simulator.
9. a kind of method tested using rock sample as claimed in claim 7 or 8 cutting broken rock experimental provision, feature are existed
In including the following steps:
S1, rock sample is prepared, is processed as rectangular hexahedron structure, and outer surface is polished smooth, surface undulation is no more than
0.1mm；
S2, it will be opened at the top of environment simulator, be put into rock sample, rock sample back is made to be close to baffle, then push the pressing plate of two sides,
Clamp rock sample；
S3, the pressing plate for finely tuning two sides again, are adjusted to horizontal position to be tested for rock sample；
S4, it is adjusted to required simulated environment, then by adjusting the position of cutting depth regulating mechanism, cutting tooth is made to be moved to conjunction
Suitable height；
S5, cutting speed is set, starting cutting mechanism pushes hydraulic cylinder, after completing this cutting, is cut by sensor
To force data；
S6, it is needed if any multiple test, then repeatedly step S3-S5, until obtaining required data group number.
10. a kind of method of rock sample cutting broken rock experiment according to claim 9, which is characterized in that the step S4,
The Adjustment precision of height is 0.01mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910448489.1A CN110118667B (en) | 2019-05-28 | 2019-05-28 | Rock sample cutting and breaking experimental device and experimental method thereof |
Applications Claiming Priority (1)
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| CN111289353A (en) * | 2020-04-01 | 2020-06-16 | 厦门理工学院 | A test device for seabed rock is broken |
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| CN117191616A (en) * | 2023-11-02 | 2023-12-08 | 中国石油天然气集团有限公司 | Underground scratch test equipment |
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| CN110118667B (en) | 2020-11-24 |
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