CN107893634A - A kind of multifunctional testing and experiment porch for jet drilling desk research - Google Patents
A kind of multifunctional testing and experiment porch for jet drilling desk research Download PDFInfo
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- CN107893634A CN107893634A CN201711137350.2A CN201711137350A CN107893634A CN 107893634 A CN107893634 A CN 107893634A CN 201711137350 A CN201711137350 A CN 201711137350A CN 107893634 A CN107893634 A CN 107893634A
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- 238000005553 drilling Methods 0.000 title claims abstract description 159
- 238000002474 experimental method Methods 0.000 title claims abstract description 85
- 238000012360 testing method Methods 0.000 title claims abstract description 68
- 238000011160 research Methods 0.000 title claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 96
- 239000007921 spray Substances 0.000 claims abstract description 81
- 238000004088 simulation Methods 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 230000033228 biological regulation Effects 0.000 claims abstract description 27
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 26
- 239000010865 sewage Substances 0.000 claims abstract description 25
- 238000001914 filtration Methods 0.000 claims abstract description 21
- 238000012545 processing Methods 0.000 claims abstract description 20
- 238000004062 sedimentation Methods 0.000 claims abstract description 19
- 239000000523 sample Substances 0.000 claims description 64
- 239000011435 rock Substances 0.000 claims description 61
- 238000002347 injection Methods 0.000 claims description 34
- 239000007924 injection Substances 0.000 claims description 34
- 239000007788 liquid Substances 0.000 claims description 20
- 238000004064 recycling Methods 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000005303 weighing Methods 0.000 claims description 10
- 238000010992 reflux Methods 0.000 claims description 4
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- 238000004140 cleaning Methods 0.000 description 3
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- 239000007787 solid Substances 0.000 description 3
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- 238000010276 construction Methods 0.000 description 2
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- 230000001351 cycling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
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- 239000012071 phase Substances 0.000 description 2
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- 238000011084 recovery Methods 0.000 description 2
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- 229920005479 Lucite® Polymers 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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- 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)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention relates to a kind of multifunctional testing and experiment porch for jet drilling desk research, including power plant module, experiment condition regulation and control module, test and detection module, fluid circulation module and spray drillstring component.Power plant module includes micro- brill experimental provision and slush pump；Experiment condition regulation and control module includes middle control unit and confined pressure regulation and control unit；Test includes sensing detection unit, data acquisition unit, data processing unit and display memory cell with detection module；Fluid circulation module includes tap, water tank, sedimentation and filtration ditch, sewage pump and upper end open lower end closed and transparent simulation wellbore hole.The multifunctional testing and experiment porch of the present invention, can be in the actual jet drilling process of experiment lab simulation, necessary condition is created to carry out the in-house laboratory investigation of jet drilling, Automated condtrol can be achieved in experimentation, and can make in underground, not visible jet drilling process visualization, so as to become the research of semiempirical as scientific, quantification research.
Description
Technical field
The present invention relates to jet drilling technical field, more particularly to a kind of multi-functional survey for jet drilling desk research
Examination and experiment porch.
Background technology
Jet drilling (Jet Drilling) is using there is pressure drilling fluid to flow through build-in and produced when the nozzle of jet bit
The hydraulic action of raw high-speed jet, aids in drill bit broken rock, bottom-hole cleaning landwaste, can effectively improve a kind of drilling well side of rate of penetration
Method.During jet drilling, under the downhole condition using jet bit, drilling fluid sprays to form jet from nozzle at high speeds,
Flooded by the drilling fluid in pit shaft, and its motion and development limited by shaft bottom and the borehole wall, thus belong to flood it is non-from
By jet.
The high-pressure jet formed during jet drilling can well bottom-hole cleaning drilling cuttings, rate of penetration is substantially improved,
It is embodied in three aspects：
1st, the surge effect (the impact reversal effect to landwaste) of jet.Because jet action is on the landwaste of shaft bottom
Pressure is extremely uneven, and landwaste can be made to produce a torque reaction, leave shaft bottom；
2nd, the horizontal of cross flow pushes away effect.Cross flow has attached wall jet property, and high speed cross flow can produce a horizontal stroke to shaft bottom landwaste
Thrust；
3rd, jet is acted on the broken rock in shaft bottom.If the intensity of bottom rock is relatively low, when jet impact force exceedes formation rock
Cracking pressure when, jet is by direct fractured rock；If the intensity of bottom rock is higher, high-speed jet fluid will squeeze into rock
Micro-crack or cracking initiation " water wedge ", make micro-crack or crack gradually expand, so as to which the intensity of rock is greatly reduced.
At present, the research for jet drilling is concentrated mainly on the laying mode of build-in nozzle on jet bit, jet
Hydraulic parameters and bit hydraulic parameters, water-horse power transitive relation, approach, the jet drilling hydraulic parameters for improving bit hydraulic parameters
Design etc., in order to preferably study the related content of jet drilling, the rate of penetration of jet drilling is further lifted, is also needed
Will to injection creep into during include jet rock breaking mechanism, bottom-hole flow field optimization, nozzle arrangements optimization etc. expansion deeper into
Research, in the prior art not dedicated for injection creep into during include jet rock breaking mechanism, bottom-hole flow field optimization,
Experimental provision of nozzle arrangements optimization etc. the expansion deeper into research.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided one kind can answer process
Miscellaneous and not visible jet drilling process is placed in laboratory, so as to realize the visualizing of jet drilling process, scientific and fixed
The multifunctional testing and experiment porch of the research of quantization.
The technical scheme that the present invention solves above-mentioned technical problem is as follows：It is a kind of to be used for the multi-functional of jet drilling desk research
Test and experiment porch, including power plant module, experiment condition regulation and control module, test with detection module, fluid circulation module and
Spray drillstring component.
The power plant module includes micro- brill experimental provision and slush pump, and the spray drillstring component connects with micro- brill experimental provision
Connect；The experiment condition regulation and control module includes middle control unit and confined pressure regulation and control unit；The test includes sensing with detection module
Detection unit, data acquisition unit, data processing unit and display memory cell, the sensing detection unit is in real time described in detection
Micro- duty parameter for boring experimental provision and the confined pressure value being applied on rock sample；The fluid circulation module include tap, water tank,
Sedimentation and filtration ditch, sewage pump and upper end open lower end closed and transparent simulation wellbore hole.
Rock sample is filled with the simulation wellbore hole, micro- brill experimental provision is arranged on above the simulation wellbore hole, and institute
State spray drillstring component to be located in the upper port of the simulation wellbore hole, the confined pressure regulation and control unit passes through the side wall of the simulation wellbore hole
And/or bottom wall, and the confined pressure value of the adjustable extruding rock sample, the spray drillstring component are arranged on the upper port of the simulation wellbore hole
It is interior, and fluid is sprayed downwards, the inlet on the water tank is connected by pipeline with the tap, goes out liquid on the water tank
Mouth is connected by pipeline with the inlet of the slush pump, and the liquid outlet of the slush pump passes through pipeline and connected with the spray drillstring component
Logical, the refluxing opening on the water tank is connected by pipeline with the liquid outlet of the sewage pump, and the inlet of the sewage pump passes through
Pipeline connects with the liquid outlet of the sedimentation and filtration ditch, and the inlet of the sedimentation and filtration ditch passes through pipeline and the simulation wellbore hole
Upper port connects；It is described it is middle control unit respectively with it is described it is micro- brill experimental provision, slush pump, sensing detection unit, data acquisition list
Member, data processing unit, display memory cell and sewage pump electrical connection.
The beneficial effects of the invention are as follows：Multifunctional testing and experiment porch provided by the invention, can be in experiment lab simulation
Actual jet drilling process, can be that the in-house laboratory investigation for carrying out jet drilling creates necessary condition, it is provided by the invention more
Functional test can realize Automated condtrol with experiment porch, and can make in underground, not visible jet drilling process visualization,
So as to become the research of semiempirical as scientific, quantification research.
During carrying out the in-house laboratory investigation of jet drilling using multifunctional testing provided by the invention and experiment porch,
Can be to each duty parameter condition (the pressure of the drill, moment of torsion, rotating speed, injection pressure, injection flow, spray angle, the test of jet drilling
Sample, confined pressure) carry out dynamic regulation, to meet to carry out different operating mode simulation experiment study, parameters can by test with
Detection module detects in real time, and carries out display, record and the storage of data image with detection module by testing.
Multifunctional testing provided by the invention is not limited with experiment porch by site condition, can be in laboratory by more
Different test samples, drilling fluid types, bite type, bleed type etc. are changed, the jet drilling tested under various combination pattern
Effect, to carry out reasonably optimizing to jet drilling parameter.In addition, multifunctional testing provided by the invention and experiment porch are not only
The in-house laboratory investigation of jet drilling can be carried out, while can also carry out the work of the experimental study in terms of high-pressure jet.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement：
Further：The middle control unit includes display screen, control button, main control circuit and power supply, the main control electricity
Road and power supply are arranged in switch board, and the display screen and control button inlay the front panel for being arranged on the switch board respectively
On, and the display screen and control button electrically connect with the main control circuit respectively, the power supply respectively with the display screen,
Control button and main control circuit electrical connection, the main control circuit also respectively with it is described it is micro- brill experimental provision, slush pump, sensing
Detection unit, data acquisition unit, data processing unit, display memory cell and sewage pump electrical connection.
The above-mentioned further beneficial effect of scheme is：Micro- brill can more easily be controlled by the middle control unit
Experimental provision, slush pump, sensing detection unit, data acquisition unit, data processing unit, display memory cell and sewage pump etc.
The working condition of electric equipment, and the pressure of the drill of control spray drillstring component (5), moment of torsion (rotating speed), the size of injection pressure (flow).
Further：Confined pressure regulation and control unit includes hydraulic power unit, multiple hydraulic cylinders and identical with the hydraulic cylinder quantity
Blessing mould, the hydraulic power unit connects with the hydraulic cylinder, and the output end of the hydraulic cylinder is through the simulation wellbore hole
Abutted after side wall and/or bottom wall by the corresponding blessing mould with the rock sample.
The above-mentioned further beneficial effect of scheme is：Can more easily it be adjusted by confined pressure regulation and control unit described
The movement travel of hydraulic cylinder, so as to the confined pressure of the more accurate regulation rock sample, to be tested under different confined pressures
With experiment.
Further：The sensing detection unit includes quantity and the hydraulic cylinder identical first pressure sensor, also wraps
Include displacement transducer, second pressure sensor, torsion torque sensor, speed probe, angular transducer, pressure transmitter, flow
One or more in sensor and weighing sensor, the first pressure sensor be arranged on corresponding to it is described blessing mould with
Between the rock sample, institute's displacement sensors, second pressure sensor, torsion torque sensor, speed probe and angular transducer
It is arranged in micro- brill experimental provision, the pressure transmitter and flow sensor are arranged at the slush pump and the spray
On pipeline between drillstring component；The first pressure sensor is used for the confined pressure for detecting the rock sample in real time, the displacement sensing
Device is used for the drilling footage for detecting the spray drillstring component in real time or injection stream spray away from the second pressure sensor is used for real-time
The pressure of the drill of the spray drillstring component is detected, the torsion torque sensor is used for the drilling moment of torsion for detecting the spray drillstring component in real time, described
Speed probe is used for the drilling rotating speed for detecting the spray drillstring component in real time, and the angular transducer is used to detect the spray in real time
The drilling direction or jet injection direction of drillstring component, the pressure transmitter are used to detect the spray drillstring component injection fluid in real time
Injection pressure, the flow sensor is used to detect the flow for spraying drillstring component injection fluid in real time, and the weighing sensor is used
In the value for the jet impact force for detecting the spray drillstring component in real time.
The above-mentioned further beneficial effect of scheme is：Pass through the first pressure sensor, displacement transducer, second pressure
Sensor, torsion torque sensor, speed probe, angular transducer, pressure transmitter, flow sensor weighing sensor, can be with
Measure respectively the rock sample confined pressure, it is described spray drillstring component drilling footage or injection stream spray away from, it is described spray drillstring component brill
Pressure, the drilling moment of torsion of spray drillstring component, the drilling rotating speed of the spray drillstring component, the drilling direction of the spray drillstring component or jet injection
Direction, the injection pressure of the spray drillstring component injection fluid, the flow of the spray drillstring component injection fluid and the spray drillstring component
Jet impact force value, so as to by parameters adjust to experiment desirable value, so as to smoothly complete to different duty parameters
Experiment detection.
Further：The data acquisition unit includes video camera and tachymeter, and the video camera and tachymeter are set respectively
In the opposite sides of the simulation wellbore hole, the video camera and tachymeter electrically connect with the middle control unit, and are respectively used to
Dynamic shooting jet drilling experimentation and the flow field tested in jet drilling experimentation in real time, the display memory cell are adopted
With PC or recording instrument without paper.
The above-mentioned further beneficial effect of scheme is：Drilling experiment process can dynamically be shot by the video camera in real time
With the flow field in test jet drilling experimentation, visualized, in scientific and quantification jet drilling room so as to carry out
Experimental study.
Further：The fluid circulation module also includes agitating device, and the agitating device is arranged on the water tank, and
The lower end of the agitating device is stretched into the water tank, and the agitating device electrically connects with the middle control unit, and to the water
Fluid in case is stirred.
The above-mentioned further beneficial effect of scheme is：The fluid in the water tank can be carried out by the agitating device
Stirring so that fluid and additive in the water tank etc. are well mixed, so as to obtained in jet drilling or high-pressure jet compared with
Good experiment effect.
Further：The fluid circulation module also includes fluid recycling apparatus, and the fluid recycling apparatus is arranged on described
The lower section of water tank, and the bottom of the water tank is provided with leakage fluid dram, and the leakage fluid dram passes through pipeline and the fluid recycling apparatus
Connection.
The above-mentioned further beneficial effect of scheme is：Jet drilling can be tested and terminated by the fluid recycling apparatus
The waste liquid for the reaching emission request after treatment discharge being located at afterwards in the water tank, avoids causing environmental pollution.
Further：Between the water tank and the tap, between the water tank and the slush pump, the sewage pump with
Between the sedimentation and filtration ditch, between the sedimentation and filtration ditch and the simulation wellbore hole and the water tank and the fluid recovery
Magnetic valve is equipped with pipeline between device, all magnetic valves electrically connect with the middle control unit.
The above-mentioned further beneficial effect of scheme is：By setting the magnetic valve can be by the middle control unit to upper
State pipeline to be automatically controlled, to realize the current intelligence of fluid in different pipelines, so as to realize remote control.
Further：The spray drillstring component is jet bit or nozzle.
The above-mentioned further beneficial effect of scheme is：Jet bit or nozzle are set, jet drilling reality can be carried out respectively
Test and tested with high-pressure jet, realize multifunctional testing and experiment, enrich product function, enhance the versatility of product.
Further：The bottom of the simulation wellbore hole, which is provided with, to be used to support its support frame, and the rock sample is arranged on the mould
Intend the center position of pit shaft.
The above-mentioned further beneficial effect of scheme is：By support frame as described above can whole simulation wellbore hole obtain it is more steady
Fixed support, can be with further such that whole simulation by the way that the rock sample to be arranged on to the center position of the simulation wellbore hole
The center of pit shaft is more steady, and whole simulation wellbore hole keeps stable in experimentation.
Brief description of the drawings
Fig. 1 is that the multifunctional testing for jet drilling desk research of one embodiment of the invention electrically connects with experiment porch
Connect schematic diagram；
Fig. 2 is the multifunctional testing and experiment porch structural representation for jet drilling desk research of the present invention；
Fig. 3 is the sensing detection cellular construction schematic diagram of one embodiment of the invention；
Fig. 4 is the data acquisition unit structural representation of one embodiment of the invention；
Fig. 5 is that the multifunctional testing and experiment porch for jet drilling desk research of another embodiment of the present invention are electric
Connection diagram；
Fig. 6 is that the multifunctional testing and experiment porch for jet drilling desk research of further embodiment of this invention are electric
Connection diagram.
In accompanying drawing, the list of parts representated by each label is as follows：
1st, power plant module, 2, experiment condition regulation and control module, 3, test and detection module, 4, fluid circulation module, 5, spray bores
Component, 6, rock sample, 7, support frame；
11st, micro- brill experimental provision, 12, slush pump, 21, middle control unit, 22, confined pressure regulation and control unit, 31, sensing detection list
Member, 32, data acquisition unit, 33, data processing unit, 34, display memory cell, 41, tap, 42, water tank, 43, precipitation
Filtering ponds, 44, sewage pump, 45, simulation wellbore hole, 46, agitating device, 47, fluid recycling apparatus, 48, magnetic valve；
211st, display screen, 212, control button, 213, switch board, 221, hydraulic cylinder, 222, accommodate mould, the 311, first pressure
Force snesor, 312, displacement transducer, 313, second pressure sensor, 314, torsion torque sensor, 315, speed probe, 316,
Angular transducer, 317, pressure transmitter, 318, flow sensor, 319, weighing sensor, 321, video camera, 322, test the speed
Instrument.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The part of the embodiment of the present invention, rather than whole embodiments, and the given examples are served only to explain the present invention, is not intended to
Limit the scope of the present invention.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work
On the premise of the every other embodiment that is obtained, belong to the scope of protection of the invention.
As depicted in figs. 1 and 2, a kind of multifunctional testing and experiment porch for jet drilling desk research, including it is dynamic
Power module 1, experiment condition regulation and control module 2, test and detection module 3, fluid circulation module 4 and spray drillstring component 5.
Wherein, the power plant module 1 includes micro- brill experimental provision 11 and slush pump 12, the spray drillstring component 5 with it is described micro-
Experimental provision 11 is bored to connect.In practice, the effect of the power plant module 1 be for jet drilling experiment provide needed for power, wherein,
Micro- rig when functioning as actual ejection drilling well for boring experimental provision 11 in jet drilling experiment, it can spray
It is that the spray drillstring component 5 applies the pressure of the drill required when creeping into broken rock sample 6, moment of torsion (rotating speed) during drilling experiment, and adjusts
Save dilling angle (jet spray angle)；The slush pump 12 bores fluid enclosed for driving spray in jet drilling experimentation and followed
The dynamic power source of circulation, while be provided with pressure drilling fluid for spray drillstring component 5 or the injection pressure (flow) of jet is provided.Here,
The slush pump 12 selects frequency conversion type high pressure slurry pump, and is equipped with high-pressure rubber pipe use.
The experiment condition regulation and control module 2 includes middle control unit 21 and confined pressure regulation and control unit 22, the experiment condition regulation and control
The effect of module 2 is to regulate and control the condition of work and situation of jet drilling experiment, wherein, the middle control unit 21 is real in jet drilling
Test effect predominantly control it is micro- brill experimental provision 11, slush pump 12, test with detection module 3, fluid circulation module 4 in
Electrical equipment is opened/closed；Also controllable described spray drillstring component the pressure of the drill, moment of torsion (rotating speed) or injection pressure (flow) is big simultaneously
It is small.The confined pressure regulation and control unit 22 is hydraulic system actually.
It is described test with detection module 3 include sensing detection unit 31, data acquisition unit 32, data processing unit 33 and
Memory cell 34 is shown, the sensing detection unit 31 detects micro- duty parameter for boring experimental provision 11 and is applied in real time
Confined pressure value on rock sample 6.The test and the effect of detection module 3 are to having related parameter progress in jet drilling experimentation
Real-time testing and detection, and real-time display, analysis, record and storage are carried out to relevant data and image etc..
The fluid circulation module 4 includes tap 41, water tank 42, sedimentation and filtration ditch 43, sewage pump 44 and upper end open
Lower end closed and transparent simulation wellbore hole 45.Rock sample 6 is filled with the simulation wellbore hole 45, micro- brill experimental provision 11 is set
Above the simulation wellbore hole 45, and the spray drillstring component 5 is located in the upper port of the simulation wellbore hole 45, the confined pressure regulation and control
Unit 22 passes through the side wall and/or bottom wall of the simulation wellbore hole 45, and the confined pressure value of the adjustable extruding rock sample 6, the spray
Drillstring component 5 is arranged in the upper port of the simulation wellbore hole 45, and sprays fluid downwards.Set respectively in the side wall of the water tank 42
There are inlet, liquid outlet and a refluxing opening, the inlet on the water tank 42 is connected by pipeline with the tap 41, the water
Liquid outlet on case 42 is connected by pipeline with the inlet of the slush pump 12, and the liquid outlet of the slush pump 12 passes through pipeline
Connected with the spray drillstring component 5, the refluxing opening on the water tank 42 is connected by pipeline with the liquid outlet of the sewage pump 44, institute
The inlet for stating sewage pump 44 is connected by pipeline with the liquid outlet of the sedimentation and filtration ditch 43, and the sedimentation and filtration ditch 43 enters
Liquid mouth is connected by pipeline with the upper port of simulation wellbore hole 45；It is described it is middle control unit 21 respectively with micro- brill experimental provision
11st, slush pump 12, sensing detection unit 31, data acquisition unit 32, data processing unit 33, display memory cell 34 and sewage
Pump 44 electrically connects.
Wherein, the effect of the tap 41 is to provide clear water for jet drilling experiment；The water tank 42 is storage fluid
Container, be respectively equipped with the side appropriate position of water tank 42 connected with tap 41 inlet, with the slush pump 12
The liquid outlet of connection and the liquid return hole connected with sewage pump 47, each mouth of water tank 42 is by suitable sebific duct/high-pressure rubber pipe
With above-mentioned corresponding members.Sebific duct/high-pressure rubber pipe is used to construct path during fluid (drilling fluid) circulation, and it is fluid
(drilling fluid) is capable of the medium of normal circulation, if fluid (drilling fluid) circulation section is high-pressure fluid, needs to use high-pressure rubber pipe, no
Then connected using common sebific duct.Sedimentation and filtration ditch 43 is used to precipitate, filtered in jet drilling experimentation due to drilling
Mix the drilling cuttings in drilling fluid caused by broken rock sample, to ensure the normal closed cycle of drilling fluid.Precipitated if only relying on
Filter tank 43 do not reach still remove drilling fluid in landwaste requirement, also visual actual conditions increase remaining for remove the gred solid control equipment
Or flocculation agent.Sewage pump 44 is used to aid in the drilling fluid return after sedimentation and filtration ditch is handled to enter in water tank 42, while also may be used
Used as stand-by pump when emergency occurs in processing experimentation.Simulation wellbore hole 45 is to be used for mould in jet drilling experiment
Intend the part of drilling, it is the main place placed the broken rock sample of rock sample, drilling or carry out high-pressure jet research etc..The rock
Sample 6 is used to simulate the rock stratum for boring chance in actual jet drilling, and the specification of rock sample 6 need to mutually fit with the internal specifications of simulation wellbore hole 45
Preferably.
Multifunctional testing and experiment porch provided by the invention, the actual jet drilling process of lab simulation can be being tested,
Can be that the in-house laboratory investigation for carrying out jet drilling creates necessary condition, multifunctional testing provided by the invention can with experiment porch
Automated condtrol is realized, and can be made in underground, not visible jet drilling process visualization, so as to become the research of semiempirical
For scientific, quantification research.
During carrying out the in-house laboratory investigation of jet drilling using multifunctional testing provided by the invention and experiment porch,
Can be to each duty parameter condition (the pressure of the drill, moment of torsion, rotating speed, injection pressure, injection flow, spray angle, the test of jet drilling
Sample, confined pressure) carry out dynamic regulation, to meet to carry out different operating mode simulation experiment study, parameters can by test with
Detection module 3 detects in real time, and carries out display, record and the storage of data image with detection module 3 by testing.
Multifunctional testing provided by the invention is not limited with experiment porch by site condition, can be in laboratory by more
Different test samples, drilling fluid types, bite type, bleed type etc. are changed, the jet drilling tested under various combination pattern
Effect, to carry out reasonably optimizing to jet drilling parameter.In addition, multifunctional testing provided by the invention and experiment porch are not only
The in-house laboratory investigation of jet drilling can be carried out, while can also carry out the work of the experimental study in terms of high-pressure jet.Use this hair
Fluid in bright whole experiment process is closed cycle, can avoid waste and environmental pollution, effectively reduce experimental cost.Utilize
The relevant result and conclusion that the present invention obtains, can be provided for the smooth implementation of jet drilling (or high-pressure jet) guidance of science according to
According to.
As shown in Figure 2, in the above-described embodiments, the middle control unit 21 includes display screen 211, control button 212, master
Control circuit (not shown) and power supply (not shown), the main control circuit and power supply are arranged in switch board 213,
The display screen 211 and control button 212 are inlayed respectively to be arranged on the front panel of the switch board 213, and the display screen
211 and control button 212 electrically connected respectively with the main control circuit, the power supply respectively with the display screen 211, control press
Button 212 and main control circuit electrical connection, the main control circuit also respectively with it is described it is micro- brill experimental provision 11, slush pump 12, pass
Sense detection unit 31, data acquisition unit 32, data processing unit 33, display memory cell 34 and sewage pump 44 electrically connect.It is logical
Cross it is described it is middle control unit 21 can more easily control it is described it is micro- brill experimental provision 11, slush pump 12, sensing detection unit 31,
Data acquisition unit 32, data processing unit 33, the working condition for showing the electric equipment such as memory cell 34 and sewage pump 44, with
And the pressure of the drill, moment of torsion (rotating speed), the size of injection pressure (flow) of drillstring component 5 are sprayed in control.
In the above-described embodiments, confined pressure regulation and control unit 22 include hydraulic power unit, multiple hydraulic cylinders 221 and with the liquid
The quantity identical of cylinder pressure 221 accommodates mould 222, and the hydraulic power unit connects with the hydraulic cylinder 221, the hydraulic cylinder 221
Output end is through passing through corresponding blessing mould 222 and the rock sample 6 after the side wall of the simulation wellbore hole 45 and/or bottom wall
Abut.The movement travel of the hydraulic cylinder 221 can more easily be adjusted by regulating and controlling unit 22 by the confined pressure, so as to compare
The confined pressure of the rock sample 6 is accurately adjusted, to be tested and tested under different confined pressures.
It is pointed out that the output end of the hydraulic cylinder 221 passes through the side wall and/or bottom wall of the simulation wellbore hole 45
When, it is necessary to sealed in the barrel contact position of hydraulic cylinder 221 and simulation wellbore hole 45 and Anti-seeping technology, avoid the simulation wellbore hole
45 rock sample 6 oozes out.
Preferably, in the present embodiment, the hydraulic cylinder 221 and the quantity for accommodating mould 222 are five, one of institute
State hydraulic cylinder 221 through after the bottom wall of the simulation wellbore hole 45 by the corresponding bottom for accommodating mould 222 and the rock sample 6
Portion abuts, and hydraulic cylinder 221 described in four additional symmetrically is arranged on the both sides of the simulation wellbore hole 45, and the hydraulic cylinder
221 through the simulation wellbore hole 45 side wall after by it is corresponding it is described blessing mould 222 abutted with the sidepiece of the rock sample 6.
Such five hydraulic cylinders 221 are formed to the circumferential extruding of the rock sample 6 and bottom by corresponding blessing mould 222 respectively
Extruding, preferably to control and adjust the confined pressure of the rock sample 6.Certainly, more or fewer can also be used in practice
The hydraulic cylinder 221 and blessing mould 222 of quantity, and set-up mode can also be corresponded to and adjusted, and be repeated no more here.
In the present embodiment, the blessing mould 222 is made up of materials such as transparent, high-strength lucite.
As shown in figure 3, in the above-described embodiments, the sensing detection unit 31 includes quantity and the phase of hydraulic cylinder 221
With first pressure sensor 311, in addition to displacement transducer 312, second pressure sensor 313, torsion torque sensor 314, turn
One kind in fast sensor 315, angular transducer 316, pressure transmitter 317, flow sensor 318 and weighing sensor 319
Or it is a variety of, the first pressure sensor 311 is arranged between corresponding the blessing mould 222 and the rock sample 6, institute's rheme
Displacement sensor 312, second pressure sensor 313, torsion torque sensor 314, speed probe 315 and angular transducer 316 are set
It is described it is micro- brill experimental provision 11 in, the pressure transmitter 317 and flow sensor 318 be arranged at the slush pump 12 with
On pipeline between the spray drillstring component 5.Here, the first pressure sensor 311 uses strain gauge pressure sensor.
The first pressure sensor 311 is used for the confined pressure for detecting the rock sample 6 in real time, and institute's displacement sensors 312 are used
In the drilling footage or injection stream spray for detecting the spray drillstring component 5 in real time away from the second pressure sensor 313 is used for real-time
The pressure of the drill of the spray drillstring component 5 is detected, the torsion torque sensor 314 is used for the drilling moment of torsion for detecting the spray drillstring component 5 in real time,
The speed probe 315 is used for the drilling rotating speed for detecting the spray drillstring component 5 in real time, and the angular transducer 316 is used for real
When detect it is described spray drillstring component 5 drilling direction or jet injection direction, the pressure transmitter 317 be used in real time detect described in
The injection pressure that drillstring component 5 sprays fluid is sprayed, the flow sensor 318 sprays drillstring component 5 for detection in real time and sprays fluid
Flow, the weighing sensor 319 are used for the value for detecting the jet impact force of the spray drillstring component 5 in real time.
Pass through the first pressure sensor 311, displacement transducer 312, second pressure sensor 313, torsion torque sensor
314th, speed probe 315, angular transducer 316, pressure transmitter 317, the weighing sensor 319 of flow sensor 318, can be with
The confined pressure of the rock sample 6, the drilling footage of the spray drillstring component 5 or injection stream spray are measured respectively away from, the spray drillstring component 5
The pressure of the drill, the drilling moment of torsion for spraying drillstring component 5, the drilling rotating speed of the spray drillstring component 5, the drilling direction for spraying drillstring component 5 are penetrated
Flow injection direction, the spray drillstring component 5 sprays the injection pressure of fluid, the spray drillstring component 5 injection flow of fluid and described
The value of the jet impact force of drillstring component 5 is sprayed, so as to which every duty parameter is adjusted to experiment desirable value, so as to smoothly complete to not
Experiment with duty parameter detects.
As shown in figure 4, in the above-described embodiments, the data acquisition unit 32 includes video camera 321 and tachymeter 322,
The video camera 321 and tachymeter 322 are separately positioned on the opposite sides of the simulation wellbore hole 45, the video camera 321 and survey
Fast instrument 322 electrically connects with the middle control unit 21, and is respectively used to dynamic shooting jet drilling experimentation and test in real time
Flow field in jet drilling experimentation, the display memory cell 34 use PC or recording instrument without paper.Pass through the shooting
Machine 321 can dynamically shoot drilling experiment process and the flow field tested in jet drilling experimentation in real time, can so as to carry out
Depending on change, scientific and quantification jet drilling in-house laboratory investigation.Here, the video camera 321 uses high-speed camera, institute
Particle image velocimeter (PIV) or Doppler anemometer can be used by stating tachymeter 322.
In the present embodiment, institute's data processing unit 33 uses Intel Core microprocessors, it is of course possible to meet that experiment will
The data processor for the other models asked all can, do not do any restriction here.
As shown in Figure 5, it is preferable that in the above-described embodiments, the fluid circulation module 4 also includes agitating device 46, institute
Agitating device 46 is stated to be arranged on the water tank 42, and the lower end of the agitating device 46 is stretched into the water tank 42, it is described to stir
Mix device 46 to electrically connect with the middle control unit 21, and the fluid in the water tank 42 is stirred.Filled by the stirring
Putting 46 can be stirred to the fluid in the water tank 42 so that the mixing such as fluid and additive in the water tank 42 is equal
It is even, to obtain preferable experiment effect in jet drilling or high-pressure jet.The agitating device 46 is used to prepare drilling fluid
When stirring operation,
Preferably, in the above-described embodiments, the fluid circulation module 4 also includes fluid recycling apparatus 47, the fluid
Retracting device 47 is arranged on the lower section of the water tank 42, and the bottom of the water tank 42 is provided with leakage fluid dram, and the leakage fluid dram leads to
Piping connects with the fluid recycling apparatus 47.Jet drilling can be tested by the fluid recycling apparatus 47 after terminating
The waste liquid for reaching emission request after treatment discharge in the water tank 42, avoids causing environmental pollution.The fluid
The waste liquid for reaching emission request after processing that retracting device 47 is used to be placed in water tank 42 after jet drilling experiment is terminated is arranged
Go.In the present embodiment, the fluid recycling apparatus 47 uses floor drain.It is of course also possible to use other recovery station arrangements, here not
Enumerate again.
As shown in Figure 6, it is preferable that in the above-described embodiments, between the water tank 42 and the tap 41, the water tank
Between 42 and the slush pump 12, between the sewage pump 44 and the sedimentation and filtration ditch 43, the sedimentation and filtration ditch 43 and institute
State between simulation wellbore hole 45 and be equipped with magnetic valve 48 on the pipeline between the water tank 42 and the fluid recycling apparatus 47,
All magnetic valves 48 electrically connect with the middle control unit 21.By setting the magnetic valve 48 can be by the middle control
Unit 21 automatically controls to above-mentioned pipeline, to realize the current intelligence of fluid in different pipelines, so as to realize remote control.
Several magnetic valves 48 are arranged on the current intelligence for being respectively used to control fluid in corresponding pipeline in different pipelines, magnetic valve 48
Open and-shut mode centralized remote control can be carried out by the actual demand that middle control unit 21 test according to jet drilling.
In the above-described embodiments, the spray drillstring component 5 is jet bit or nozzle.Jet bit or nozzle are set,
Both jet drilling experiment, which can have been carried out, can also carry out high-pressure jet experiment, while can complete the test and experiment of multiple functions, rich
Rich product function, enhance the versatility of product.
Here, the jet bit is the instrument for being used to creep into broken rock sample in jet drilling experiment, and it is actual spray
Penetrate the scaled down version of drill bit used in drillng operation, jet bit is mainly by steel body, cutting tooth, the mouth of a river (groove) and in a certain way
Some nozzles of the build-in in drill bit bottom are formed, so that jet bit is when creeping into detritus, except possessing conventional bit
Turn round outside the detritus function of cutting, the high-speed jet ejected from several nozzles may also function as auxiliary detritus, bottom-hole cleaning, have
The beneficial effects such as drilling well (spy) rate of penetration are substantially improved in effect.
Preferably, in the above-described embodiments, it is the stabilization of analogsimulation pit shaft 45 in guarantee experimentation, the simulation well
The bottom of cylinder 45, which is provided with, to be used to support its support frame 7, and the rock sample 6 is arranged on the center position of the simulation wellbore hole 45.
By support frame as described above 7 can whole simulation wellbore hole 45 obtain more stable support, by the way that the rock sample 6 is arranged on into institute
The center position of simulation wellbore hole 45 is stated, can be with further such that the center of whole simulation wellbore hole be more steady, and testing
During whole simulation wellbore hole 45 keep stable.Here, support frame as described above 7 uses triangular support bracket, naturally it is also possible to using it
The support frame of its form, these are all within the scope of the present invention.
Specifically, as used the multifunctional testing of the present invention and the experimental study of experiment porch progress jet drilling, first
Unit 21 can be controlled in startup, rock sample 6 is placed in simulation wellbore hole 45 according to all parts connected shown in Fig. 2 needed for experiment
At center, regulate and control to be arranged at the movement travel of five hydraulic cylinders 221 of the both sides of simulation wellbore hole 45 and bottom respectively by hydraulic power unit,
The rock sample for being fixed on each front end of hydraulic cylinder 221 and being matched with the specification of rock sample 6 accommodates mould 222 will be from different directions to rock sample
6 apply confined pressure, until confined pressure stops the pressurized operation of hydraulic cylinder 221 when reaching the value needed for experiment, the value of confined pressure can be by some
Being arranged at the first pressure sensor 311 on the outside of rock sample, detection obtains in real time.
Open tap 41 and be arranged at the magnetic valve 48 between the tap and water tank 42 on pipeline, and to water tank 42
Inside it is put into a certain amount of clear water, then adds into water tank 42 material prepared needed for experiment drilling fluid and (add clear water and other outer
Add the sequencing of material can be adjusted flexibly according to actual conditions), start agitating device 46 and the material in water tank 42 is stirred
Mix operation to all dissolvings and required drilling fluid is made.It is respectively started micro- brill experimental provision 11 and slush pump 12, and including the
One pressure sensor 311, displacement transducer 312, second pressure sensor 313, torsion torque sensor 314, speed probe 315,
Sensor unit including angular transducer 316, pressure transmitter 317 and flow sensor 318, while log-on data collection is single
Member 32, data processing unit 33 and display memory cell 34, and carry out the debugging efforts of all devices, part.According to each biography
Sensor detects obtained relevant parameter in real time, and by controlling the corresponding control button 212 on unit 21 in manipulation, experiment dress is bored by micro-
Put pump pressure (the injection pressure of jet), the flow (jet that the pressure of the drill, moment of torsion (rotating speed), angle and the slush pump 12 of 11 offers provide
Flow) regulation to jet drilling experiment needed for value, by manipulate it is micro- brill experimental provision 11 make its gyrator drive drilling rod and
Jet bit is fed downwards in the axial direction, the drilling footage of rock sample 6 is operated so as to realize in jet drilling experiment, injection
The drilling time of drilling well can be obtained by manual time-keeping.
With the beginning of jet drilling experiment drilling footage, the video camera 321 for being positioned over the one side of simulation wellbore hole 45 is clapped in real time
Take the photograph and record the overall process of jet drilling experiment, while be positioned over the tachymeter 322 on 45 another side of simulation wellbore hole in real time to spray
The flow field situation for penetrating drilling well carries out accurate, the test and display of science.Gathered in jet drilling experimentation by each sensor
The data arrived, transmitted after data processing unit 33 carries out A/D conversions to display memory cell 34, then through corresponding data processing
Required chart is generated after software processing, analysis, and they are recorded, stored；At the same time, by video camera 321, test the speed
Instrument 322, which shoots, tests obtained relevant video recording, image etc. can also transmit to showing, record and store in display memory cell 34
Get off.
The flow process of drilling fluid in jet drilling experimentation is described as follows：In jet drilling experimentation
In, through cleaner for high-pressure drilling fluid caused by the swabbing action of slush pump 12, by the triplate line stream for being arranged at micro- brill experimental provision 11 top
Some beam high-pressure jets and then reality are produced after several nozzles on jet bit through drilling rod → jet bit → build-in
Existing jet drilling, with the continuous progress that jet drilling is tested, rock sample 6 constantly by jet bit crush and formed creep into
Chi, drilling cuttings at the same time is produced the front end of jet bit (i.e. at shaft bottom), drilling cuttings can be by constantly circulating the drilling fluid returned
Carried by shaft bottom to the top of simulation wellbore hole 45, then the pipeline through being communicated in the top of simulation wellbore hole 45 flows into sedimentation and filtration ditch 43,
It is mixed with the drilling fluid of the drilling cuttings solid concentration after multi stage precipitation, filtering to be greatly reduced, reaches the effect of cycling and reutilization (if solid phase
Content is more, and visual actual conditions increase extra solid control equipment or addition flocculation agent auxiliary removes), it is right to start sewage pump 44
Drilling fluid after purified treatment is aspirated and it is back in water tank 42, and the enclosed for so far just completing a drilling fluid is followed
Ring, when drilling experiment to be sprayed terminates (or drilling fluid can not cycling and reutilization need to update), need first enter used drilling fluid
Row processing, after reaching emission request, then by being transported to after being arranged at drain line drains to the fluid recycling apparatus 47 of water tank 42
The appointed place of discharge is allowed to focus on.
If being directly connected to the experimental study of nozzle progress high-pressure jet using the present invention, can now be carried out using rock sample 6
High-pressure jet detritus experimental study；Also the hydraulic cylinder 221 of the bottom of simulation wellbore hole 45 can will be arranged at as support frame, and is being connected
Rock sample in the front end of hydraulic cylinder 221, which accommodates, sets weighing sensor 319 on mould 222, the hitting power for carrying out high-pressure jet is surveyed
Examination experiment.Experiment one：The process of high-pressure jet detritus experiment and the process that foregoing jet drilling is tested are substantially similar, simply need not
After connecting jet bit, suitable nozzle only need to be connected, this need not consider the jet drillings such as the pressure of the drill, moment of torsion (rotating speed)
Well drilling parameter required when testing；Experiment two：In high-pressure jet hitting power test experiments, without connect jet bit and
Rock sample 6 need not be placed, remaining experimentation is similar with previous experiments.In two of high-pressure jet experiments, the reality that is primarily upon
Test injection pressure, flow, jet length, spray angle, nozzle arrangements and the drilling fluid types that parameter is jet, available reality
Testing result mainly has Optimizing Spray Nozzle Structure, the parameter for optimizing high-pressure jet detritus etc..
In the description of the invention, it is necessary to explanation, term " on ", " under ", "front", "rear", "left", "right", " interior ",
The orientation or position relationship of instructions such as " outer " are based on orientation shown in the drawings or position relationship, are for only for ease of and describe this hair
It is bright and simplify description, rather than instruction or imply that signified device or element must have specific orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for describing purpose,
And it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.In addition, in the description of the invention, unless otherwise indicated, " multiple " are meant that two or two
More than.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (10)
- A kind of 1. multifunctional testing and experiment porch for jet drilling desk research, it is characterised in that：Including power plant module (1), experiment condition regulation and control module (2), test and detection module (3), fluid circulation module (4) and spray drillstring component (5)；The power plant module (1) includes micro- brill experimental provision (11) and slush pump (12), the spray drillstring component (5) and micro- brill Experimental provision (11) connects；The experiment condition regulation and control module (2) includes middle control unit (21) and confined pressure regulation and control unit (22)；The test includes sensing detection unit (31), data acquisition unit (32), data processing unit with detection module (3) (33) and display memory cell (34), the sensing detection unit (31) detect micro- operating mode for boring experimental provision (11) in real time Parameter and the confined pressure value being applied on rock sample (6)；The fluid circulation module (4) includes tap (41), water tank (42), sedimentation and filtration ditch (43), sewage pump (44) and upper End opening lower end closed and transparent simulation wellbore hole (45)；Rock sample (6) is filled with the simulation wellbore hole (45), micro- brill experimental provision (11) is arranged on the simulation wellbore hole (45) top, and the spray drillstring component (5) is located in the upper port of the simulation wellbore hole (45), the confined pressure regulation and control unit (22) Through the side wall and/or bottom wall of the simulation wellbore hole (45), and the confined pressure value of the adjustable extruding rock sample (6), the spray are bored Component (5) is arranged in the upper port of the simulation wellbore hole (45), and sprays fluid downwards, the inlet on the water tank (42) Connected by pipeline with the tap (41), the liquid outlet on the water tank (42) passes through pipeline and the slush pump (12) Inlet is connected, and the liquid outlet of the slush pump (12) is connected by pipeline with the spray drillstring component (5), on the water tank (42) Refluxing opening connected by pipeline with the liquid outlet of the sewage pump (44), the inlet of the sewage pump (44) by pipeline with The liquid outlet connection of the sedimentation and filtration ditch (43), the inlet of the sedimentation and filtration ditch (43) pass through pipeline and the simulation well Cylinder (45) upper port connection；It is described it is middle control unit (21) respectively with it is described it is micro- brill experimental provision (11), slush pump (12), sensing detection unit (31), number According to collecting unit (32), data processing unit (33), display memory cell (34) and sewage pump (44) electrical connection.
- 2. the multifunctional testing and experiment porch according to claim 1 for jet drilling desk research, its feature exists In：The middle control unit (21) includes display screen (211), control button (212), main control circuit and power supply, the main control Circuit and power supply are arranged in switch board (213), and the display screen (211) and control button (212) are inlayed be arranged on institute respectively On the front panel for stating switch board (213), and the display screen (211) and control button (212) respectively with the main control circuit Electrical connection, the power supply electrically connect with the display screen (211), control button (212) and main control circuit respectively, the master control Circuit processed also respectively with it is described it is micro- brill experimental provision (11), slush pump (12), sensing detection unit (31), data acquisition unit (32), data processing unit (33), display memory cell (34) and sewage pump (44) electrical connection.
- 3. the multifunctional testing and experiment porch according to claim 1 for jet drilling desk research, its feature exists In：Confined pressure regulation and control unit (22) include hydraulic power unit, multiple hydraulic cylinders (221) and with the hydraulic cylinder (221) quantity phase Same blessing mould (222), the hydraulic power unit are connected with the hydraulic cylinder (221), and the output end of the hydraulic cylinder (221) is worn Cross the simulation wellbore hole (45) side wall and/or bottom wall after supported by the corresponding blessing mould (222) with the rock sample (6) Connect.
- 4. the multifunctional testing and experiment porch according to claim 3 for jet drilling desk research, its feature exists In：The sensing detection unit (31) includes quantity and the hydraulic cylinder (221) identical first pressure sensor (311), also Including displacement transducer (312), second pressure sensor (313), torsion torque sensor (314), speed probe (315), angle One or more in sensor (316), pressure transmitter (317), flow sensor (318) and weighing sensor (319), institute State first pressure sensor (311) to be arranged between the corresponding blessing mould (222) and the rock sample (6), the displacement Sensor (312), second pressure sensor (313), torsion torque sensor (314), speed probe (315) and angular transducer (316) it is arranged in micro- brill experimental provision (11), the pressure transmitter (317) and flow sensor (318) are respectively provided with On pipeline between the slush pump (12) and the spray drillstring component (5)；The first pressure sensor (311) is used for the confined pressure for detecting the rock sample (6) in real time, institute's displacement sensors (312) Drilling footage or injection stream for detecting the spray drillstring component (5) in real time are sprayed away from the second pressure sensor (313) is used In the pressure of the drill for detecting the spray drillstring component (5) in real time, the torsion torque sensor (314) is used to detect the spray drillstring component in real time (5) drilling moment of torsion, the speed probe (315) are used for the drilling rotating speed for detecting the spray drillstring component (5) in real time, the angle Degree sensor (316) is used for the drilling direction or jet injection direction for detecting the spray drillstring component (5) in real time, the pressure inverting Device (317) is used for the injection pressure for detecting spray drillstring component (5) the injection fluid in real time, and the flow sensor (318) is used for The flow of the fluid of detection spray drillstring component (5) injection in real time, the weighing sensor (319) are used to detect the spray drillstring component in real time (5) value of jet impact force.
- 5. the multifunctional testing and experiment porch according to claim 1 for jet drilling desk research, its feature exists In：The data acquisition unit (32) includes video camera (321) and tachymeter (322), the video camera (321) and tachymeter (322) it is separately positioned on the opposite sides of the simulation wellbore hole (45), the video camera (321) and tachymeter (322) are and institute Middle control unit (21) electrical connection is stated, and is respectively used to dynamic shooting jet drilling experimentation in real time and test jet drilling experiment During flow field, it is described display memory cell (34) use PC or recording instrument without paper.
- 6. the multifunctional testing and experiment porch according to claim 1 for jet drilling desk research, its feature exists In：The fluid circulation module (4) also includes agitating device (46), and the agitating device (46) is arranged on the water tank (42) On, and the lower end of the agitating device (46) is stretched into the water tank (42), the agitating device (46) and the middle control unit (21) electrically connect, and the fluid in the water tank (42) is stirred.
- 7. the multifunctional testing and experiment porch according to claim 6 for jet drilling desk research, its feature exists In：The fluid circulation module (4) also includes fluid recycling apparatus (47), and the fluid recycling apparatus (47) is arranged on the water The lower section of case (42), and the bottom of the water tank (42) is provided with leakage fluid dram, and the leakage fluid dram is returned by pipeline and the fluid Receiving apparatus (47) connects.
- 8. the multifunctional testing and experiment porch according to claim 7 for jet drilling desk research, its feature exists In：Between the water tank (42) and the tap (41), between the water tank (42) and the slush pump (12), the sewage Between pump (44) and the sedimentation and filtration ditch (43), between the sedimentation and filtration ditch (43) and the simulation wellbore hole (45) and institute State and magnetic valve (48) is equipped with the pipeline between water tank (42) and the fluid recycling apparatus (47), all magnetic valves (48) electrically connected with the middle control unit (21).
- 9. the multifunctional testing and experiment porch for jet drilling desk research according to any one of claim 1 to 8, It is characterized in that：The spray drillstring component (5) is jet bit or nozzle.
- 10. the multifunctional testing for jet drilling desk research according to any one of claim 1 to 8 is put down with experiment Platform, it is characterised in that：The bottom of the simulation wellbore hole (45), which is provided with, to be used to support its support frame (7), and the rock sample (6) is set Center position in the simulation wellbore hole (45).
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