CN108590641A - Country rock permeability multistep water filling visualizer - Google Patents

Country rock permeability multistep water filling visualizer Download PDF

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Publication number
CN108590641A
CN108590641A CN201810376010.3A CN201810376010A CN108590641A CN 108590641 A CN108590641 A CN 108590641A CN 201810376010 A CN201810376010 A CN 201810376010A CN 108590641 A CN108590641 A CN 108590641A
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China
Prior art keywords
water filling
water
plugging
rubber bag
pressure
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CN201810376010.3A
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Chinese (zh)
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CN108590641B (en
Inventor
梁正召
宋文成
钱希坤
马克
李迎春
沙润东
张梅丽
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Dalian University of Technology
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Dalian University of Technology
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/008Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by injection test; by analysing pressure variations in an injection or production test, e.g. for estimating the skin factor
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/12Packers; Plugs
    • E21B33/122Multiple string packers
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00Sealing or packing boreholes or wells
    • E21B33/10Sealing or packing boreholes or wells in the borehole
    • E21B33/12Packers; Plugs
    • E21B33/127Packers; Plugs with inflatable sleeve

Abstract

The invention belongs to rock mass damage range and permeability determination techniques fields, disclose country rock permeability multistep water filling visualizer, including test probe, drilling machine, drilling rod, control operation console.Test probe includes front plugging device, middle part plugging device, tail portion plugging device, converter and communicating pipe, plugging device includes leak pipe, is connected to the connector and rubber bag tank at leak pipe both ends, rubber bag tank surrounds leak pipe periphery, one is formed between leak pipe blocks cavity, external source injects the closure cavity and plays swollen rubber bag tank, and water filling cavity is formed with drilling.The test device can utilize blocking high-pressure water source to the conversion at observation low pressure water source, realize that closure process and test process work under respective pressure under same water source, it is one to reduce drilling interior conduit, the winding problem of drilling rod and hose is eliminated, pressure conversion stability is improved and promotes measurement efficiency every time.

Description

Country rock permeability multistep water filling visualizer
Technical field
The invention belongs to rock mass damage range and permeability determination techniques fields, and in particular to country rock permeability multistep is noted Water visualizer.
Background technology
To Mining in Rock Mass move fissure zone range and it is infiltrative measurement be study rock mass damage feature underlying parameter, for into One step, which probes into itself and the relationship of strata movement rule and stress field, has important meaning, tradition actual measurement device mainly to have direct current Method, transient electromagnetic method, microseismic detection and packer permeability test method.Wherein, with packer permeability test method reliability highest, using conventional apparatus " both-end side leakage device " carries out noting the test that discharges water, judges the development height or depth of the rock stratum by mining influence.Conventional apparatus In there are two external systems of water flood operations platform and plugging operations platform, operating personnel are relatively more, corresponding pipeline in the borehole There are 2, mutual winding problem is easy to happen during propulsion, gently then causes device closure or observation process unstable, weight It is then easy to break steam line, equipment is caused to can not work normally, also, conventional apparatus is a test cell, detection efficient Lowly, how to realize that multistage measures, reduce drilling interior conduit quantity, and can effectively control hydraulic pressure, the prior art fails together When solve the above problems.
Invention content
The purpose of the present invention is to provide a kind of country rock permeability multistep water filling visualizers.
Technical scheme of the present invention:
A kind of country rock permeability multistep water filling visualizer, including test probe, control operation console 38, drilling machine 14 and drilling rod 12;
The test probe includes plugging device, converter 6 and communicating pipe 28, plugging device include front plugging device 35, in Portion's plugging device 36, tail portion plugging device 37;Plugging device includes leak pipe 3, is connected to the connector and rubber bag tank 5 at leak pipe both ends, rubber Capsule 5 surrounds 3 periphery of leak pipe, is formed between leak pipe 3 and blocks cavity 30, and external source injects the leakage in leak pipe 3 Water hole, blocks cavity 30 and plays swollen rubber bag tank 5, and water filling cavity is formed with drilling 31;
The drilling machine 14 is connected by drilling rod 12 with test probe, to spreading and promotes test probe to specified area Domain, drilling rod 12 are hollow stem, are threaded, detachably, internal transportable high-pressure water;
The control operation console 38 includes cock of water drain 15, flowmeter 16, mechanical pressure gauge 17, master control switch 18 and electricity Sub- pressure gauge 19, control operation console 38 are connect by high-pressure hose 13 with drilling machine 14, are responsible for providing specified pressure to test probe External source;
The front plugging device 35 includes connector 1, leak pipe 3, connector 24 and rubber bag tank 5, connector 1 and connector 24 are threaded with leak pipe 3, and rubber bag tank 5 surrounds outside leak pipe 3, are fixed on connector 1 by tight loop 24 and connect It is formed between first 24 outside, with leak pipe 3 and blocks cavity 30;
One 2 outer end of connector is threadedly coupled seeker 1, and seeker 1 play the guiding role, to guide test probe to exist Sliding is smoothed out in drilling 31;
The middle part plugging device 36 includes connector 24, leak pipe 3, connector 37 and rubber bag tank 5, and rubber bag tank 5 is by tight Admittedly circle 24 is fixed on the outside of connector 24 and connector 37;
The tail portion plugging device 37 passes through tight loop 24 by two connectors 37, leak pipe 3 and rubber bag tank 5, rubber bag tank 5 It is fixed between two connectors 37;
Three external screw-thread of connector connects circular baffle plate 11, and 11 diameter of circular baffle plate is big compared with 5 diameter of rubber bag tank, prevents Rubber bag tank 5 falls off;Center of circle baffle 11 is threaded, and detachably, is convenient for and replaces rubber bag tank 5;
It is respectively formed No.1 between the front plugging device 35, middle part plugging device 36, tail portion plugging device 37 and drilling 31 Water filling cavity 29 and No. two water filling cavitys 34;
The front plugging device 35 and 36 left side of middle part plugging device is respectively threadedly coupled converter 6, and converter 6 includes base Body, conversion body 10, resetting spring 9 and adjusting screw 8, converter 6 convert the high-pressure water in communicating pipe 28 to low pressure water source It is delivered in No.1 water filling cavity 29 and No. two water filling cavitys 34;
The converter 6 is opened there are one central through hole 32 and four periphery through-holes 33, and four periphery through-holes 33 symmetrically divide It is distributed in around central through hole 32;
The 32 left end aperture of central through hole is less than right end aperture, and each 33 side wall of periphery through-hole correspondence is provided with side leakage hole 25;
Conversion body 10, resetting spring 9 and adjusting screw 8, periphery through-hole 33 are sequentially installed in the periphery through-hole 33 Inner left wall is threaded, and is matched with adjusting screw 8, and adjusting screw 8 rotation, compression reseting spring in periphery through-hole 33 are made 9, to control the Opening pressure of conversion body 10;
8 side wall of adjusting screw is provided with hexagonal through-hole 21, convenient for rotation adjusting screw 8 and feedback No.1 water filling cavity 29 and No. two 34 hydraulic pressure of water filling cavity and 10 left side of conversion body;
The taper conversion body 10 is more than right side diameter, is differing in not equal diameter cylinder, left side diameter Diameter cylinder transition position is sealing cone 26, is matched with the sealing cone 26 of 33 inner wall of periphery through-hole, and sealing cone 26 is in 30 ° of angles;
" L " shape limbers 23 is provided in the taper conversion body 10, in the cylinder close to 10 left side of taper conversion body Shape outer surface is provided with annular water tank 22, and limbers 23 is connected with annular water tank 22;When external source pushes taper conversion body 10 When being moved to the left, annular water tank 22 is connected with side leakage hole 20, and external source is made to enter No.1 water filling cavity 29 or No. two water fillings In cavity 34;
6 operation principle of converter:
(1) when taper conversion body 10 meets PIt is leftSIt is left+kx≤PIt is rightSIt is rightWhen, then taper conversion body 10 is moved to the left, annular water tank 22 are connected to side leakage hole 20, and water filling observation is carried out to No.1 water filling cavity 29 or No. two water filling cavitys 34;
(2) when taper conversion body 10 meets PIt is leftSIt is left+kx≥PIt is rightSIt is rightWhen, then taper conversion body 10 moves right, annular water tank 22 are closed by 33 inner wall of periphery through-hole, stop supplying water to water filling cavity;
(3) if PIt is rightIt is excessive, to prevent PIt is rightExtreme hydraulic pressure damages 31 inner wall of drilling of water filling chamber portion, then taper Conversion body 10 is moved to the left, until annular water tank 22 is moved to the left end in side leakage hole 20, is formed again with 33 inner wall of periphery through-hole Sealing process;
Wherein, PIt is leftSource pressure, generally 0.5MPa or so are observed for No.1 or No. two water filling cavitys;PIt is rightTo be externally supplied Source pressure, generally 1.5MPa or so, SIt is leftFor taper conversion body left side discharge area, SIt is rightFor taper conversion body right side mistake Water area, k are the coefficient of elasticity of resetting spring, and x is decrement;
The control operation console 38 includes cock of water drain 15, flowmeter 16, pressure gauge 1, master control switch 18 and pressure Table 2 19, cock of water drain 15 are responsible for that pressure water in test probe will be discharged, so that rubber bag tank 5 is disengaged with drilling 31, be convenient for Drilling machine 14 promotes test probe;18 responsible external source of master control switch stops supplying, and flowmeter 16 is responsible for detection external source to survey Probe header inputs real-time water, and pressure gauge 1 is stem-winder, and pressure gauge 2 19 is electronic watch, and the two registration is compared inspection It tests, if roughly the same, shows that pressure is effective;
The quantity of the water filling cavity, increases, design method is identical according to demand.
Beneficial effects of the present invention:
(1) present invention proposes country rock permeability multistep water filling visualizer, compared with prior art, the arrangement achieves The closure of test probe is test integrated, and it is 1 to reduce the number of tubes worked at the same time in drilling, solves progradation Multi-pipeline mutually winds problem in middle drilling, improves the stability of rock mass damage range measurement process.
(2) the arrangement achieves same external source is utilized, observation process and closure process is made to work under respective pressure Problem, and can be to avoid observation water source hypertonia to borehole fissure destruction, improve rock mass damage range and measured The accuracy of journey.
(3) the built-in cooperation resetting spring of taper conversion body and sealing cone design in converter, is not only convenient for taper conversion Body is easy to reset in time, improves the stability of the converter course of work, and solves and block water source to the conversion of observation water source Leakproofness, ensure that Opening pressure.
(4) design of the adjusting screw with hexagon through-hole in converter is not only convenient for rotation adjusting screw compression and resets Spring, control taper conversion body have different unlatchings and switching to pressure, and adjustable range is extensive, adapts to different work requirements, And the low pressure water in water filling cavity can be made to pass through the through-hole feedback effect in adjusting screw and convert body side surface in taper, make tune Pressure is more sensitive and balances.
(5) in taper conversion body annular water tank design, limbers and converter in taper conversion body can be solved and be discharged Mouth not correspondence problem ensures no matter how taper conversion body rotates, and the water in limbers can be flowed to by annular water tank Transducer outlet.
(6) multistage measurement process successively is promoted the arrangement achieves primary, improves and promotes observed efficiency every time, it is opposite to pass Bulk cargo, which is set, to be compared, and is improved speed of detection, is shortened detection time.
Description of the drawings
Fig. 1 is the scopic overall structure of country rock permeability multistep water filling of the present invention and observation state schematic diagram;
Fig. 2 is the scopic release advanced state schematic diagram of country rock permeability multistep water filling of the present invention;
Fig. 3 is the structural schematic diagram of test probe in country rock permeability multistep water filling visualizer of the present invention;
Fig. 4 is country rock permeability multistep water filling visualizer middle front part plugging device structural schematic diagram of the present invention;
Fig. 5 is middle part plugging device structural schematic diagram in country rock permeability multistep water filling visualizer of the present invention;
Fig. 6 is tail portion plugging device structural schematic diagram in country rock permeability multistep water filling visualizer of the present invention;
Fig. 7 (a) is converter structural front view in country rock permeability multistep water filling visualizer of the present invention;
Fig. 7 (b) is converter structural side view in country rock permeability multistep water filling visualizer of the present invention;
Fig. 8 (a) is converter stationary state schematic diagram in country rock permeability multistep water filling visualizer of the present invention;
Fig. 8 (b) is converter working state schematic representation in country rock permeability multistep water filling visualizer of the present invention;
Fig. 9 (a) is taper conversion body structural front view in country rock permeability multistep water filling visualizer of the present invention;
Fig. 9 (b) is taper conversion body structure rearview in country rock permeability multistep water filling visualizer of the present invention;
Fig. 9 (c) is taper conversion body structural side view in country rock permeability multistep water filling visualizer of the present invention;
Figure 10 (a) is adjusting screw structural front view in country rock permeability multistep water filling visualizer of the present invention;
Figure 10 (b) is adjusting screw structural side view in country rock permeability multistep water filling visualizer of the present invention;
In figure:1 seeker;2 connectors one;3 leak pipes;4 connectors two;5 rubber bag tanks;6 converters;7 connectors three;8 adjust spiral shell Silk;9 resetting springs;10 taper conversion bodies;11 circular baffle plates;12 drilling rods;13 high-pressure hoses;14 drilling machines;15 cock of water drain;16 streams Scale;17 pressure gauges one;18 master controls switch;19 pressure gauges two;20 side leakage holes;21 hexagonal through-holes;22 annular water tanks;23 water flowings Hole;24 tight loops;25 leakage holes;26 sealing cones;27 rock mass to be measured;28 communicating pipes;29 No.1 water filling cavitys;30 block sky Chamber;31 drillings;32 central through holes;33 periphery through-holes;34 No. two water filling cavitys;35 front plugging devices;36 middle part plugging devices;37 tails Portion's plugging device;38 control operation consoles.
Specific implementation mode
Below in conjunction with attached drawing and technical solution, the specific implementation mode that further illustrates the present invention.
A kind of country rock permeability multistep water filling visualizer, including test probe, control operation console 38, drilling machine 14 and drilling rod 12;
The test probe includes plugging device, converter 6 and communicating pipe 28, plugging device include front plugging device 35, in Portion's plugging device 36, tail portion plugging device 37;Plugging device includes leak pipe 3, is connected to the connector and rubber bag tank 5 at leak pipe both ends, rubber Capsule 5 surrounds 3 periphery of leak pipe, is formed between leak pipe 3 and blocks cavity 30, and external source injection closure cavity 30 rises swollen Rubber bag tank 5 forms water filling cavity with drilling 31;
The drilling machine 14 is connected by drilling rod 12 with test probe, to spreading and promotes test probe to specified area Domain, drilling rod 12 are hollow stem, are threaded, detachably, internal transportable high-pressure water;
The control operation console 38 includes cock of water drain 15, flowmeter 16, mechanical pressure gauge 17, master control switch 18 and electricity Sub- pressure gauge 19, control operation console 38 are connect by high-pressure hose 13 with drilling machine 14, are responsible for providing specified pressure to test probe External source;
The front plugging device 35 includes connector 1, leak pipe 3, connector 24 and rubber bag tank 5, connector 1 and connector 24 are threaded with leak pipe 3, and rubber bag tank 5 surrounds outside leak pipe 3, are fixed on connector 1 by tight loop 24 and connect It is formed between first 24 outside, with leak pipe 3 and blocks cavity 30;
One 2 outer end of connector is threadedly coupled seeker 1, and seeker 1 play the guiding role, to guide test probe to exist Sliding is smoothed out in drilling 31;
The middle part plugging device 36 includes connector 24, leak pipe 3, connector 37 and rubber bag tank 5, and rubber bag tank 5 is by tight Admittedly circle 24 is fixed on the outside of connector 24 and connector 37;
The tail portion plugging device 37 passes through tight loop 24 by two connectors 37, leak pipe 3 and rubber bag tank 5, rubber bag tank 5 It is fixed between two connectors 37;
Three external screw-thread of connector connects circular baffle plate 11, and 11 diameter of circular baffle plate is big compared with 5 diameter of rubber bag tank, prevents Rubber bag tank 5 falls off;Center of circle baffle 11 is threaded, and detachably, is convenient for and replaces rubber bag tank 5;
It is respectively formed No.1 between the front plugging device 35, middle part plugging device 36, tail portion plugging device 37 and drilling 31 Water filling cavity 29 and No. two water filling cavitys 34;
The front plugging device 35 and 36 left side of middle part plugging device is respectively threadedly coupled converter 6, and converter 6 includes base Body, conversion body 10, resetting spring 9 and adjusting screw 8, converter 6 convert the high-pressure water in communicating pipe 28 to low pressure water source It is delivered in No.1 water filling cavity 29 and No. two water filling cavitys 34;
The converter 6 is opened there are one central through hole 32 and four periphery through-holes 33, and four periphery through-holes 33 symmetrically divide It is distributed in around central through hole 32;
The 32 left end aperture of central through hole is less than right end aperture, and each 33 side wall of periphery through-hole correspondence is provided with side leakage hole 25;
Conversion body 10, resetting spring 9 and adjusting screw 8, periphery through-hole 33 are sequentially installed in the periphery through-hole 33 Inner left wall is threaded, and is matched with adjusting screw 8, and adjusting screw 8 rotation, compression reseting spring in periphery through-hole 33 are made 9, to control the Opening pressure of conversion body 10;
8 side wall of adjusting screw is provided with hexagonal through-hole 21, convenient for rotation adjusting screw 8 and feedback No.1 water filling cavity 29 and No. two 34 hydraulic pressure of water filling cavity and 10 left side of conversion body;
The taper conversion body 10 is more than right side diameter, is differing in not equal diameter cylinder, left side diameter Diameter cylinder transition position is sealing cone 26, is matched with the sealing cone 26 of 33 inner wall of periphery through-hole, and sealing cone 26 is in 30 ° of angles;
" L " shape limbers 23 is provided in the taper conversion body 10, in the cylinder close to 10 left side of taper conversion body Shape outer surface is provided with annular water tank 22, and limbers 23 is connected with annular water tank 22;When external source pushes taper conversion body 10 When being moved to the left, annular water tank 22 is connected with side leakage hole 20, and external source is made to enter No.1 water filling cavity 29 or No. two water fillings In cavity 34;
6 operation principle of converter:
(1) when taper conversion body 10 meets PIt is leftSIt is left+kx≤PIt is rightSIt is rightWhen, then taper conversion body 10 is moved to the left, annular water tank 22 are connected to side leakage hole 20, and water filling observation is carried out to No.1 water filling cavity 29 or No. two water filling cavitys 34;
(2) when taper conversion body 10 meets PIt is leftSIt is left+kx≥PIt is rightSIt is rightWhen, then taper conversion body 10 moves right, annular water tank 22 are closed by 33 inner wall of periphery through-hole, stop supplying water to water filling cavity;
(3) if PIt is rightIt is excessive, to prevent PIt is rightExtreme hydraulic pressure damages 31 inner wall of drilling of water filling chamber portion, then taper Conversion body 10 is moved to the left, until annular water tank 22 is moved to the left end in side leakage hole 20, is formed again with 33 inner wall of periphery through-hole Sealing process;
Wherein, PIt is leftSource pressure, generally 0.5MPa or so are observed for No.1 or No. two water filling cavitys;PIt is rightTo be externally supplied Source pressure, generally 1.5MPa or so, SIt is leftFor taper conversion body left side discharge area, SIt is rightFor taper conversion body right side mistake Water area, k are the coefficient of elasticity of resetting spring, and x is decrement;
The control operation console 38 includes cock of water drain 15, flowmeter 16, pressure gauge 1, master control switch 18 and pressure Table 2 19, cock of water drain 15 are responsible for that pressure water in test probe will be discharged, so that rubber bag tank 5 is disengaged with drilling 31, be convenient for Drilling machine 14 promotes test probe;18 responsible external source of master control switch stops supplying, and flowmeter 16 is responsible for detection external source to survey Probe header inputs real-time water, and pressure gauge 1 is stem-winder, and pressure gauge 2 19 is electronic watch, and the two registration is compared inspection It tests, if roughly the same, shows that pressure is effective;
The scopic observation procedure of country rock permeability multistep water filling, specially:
(1) construction drill:According to construction requirement, using drilling machine 14 at 27 region of rock mass to be measured construction different direction and inclination angle The drilling of a 3~5, drill 31 a diameter of 89mm, and length is 70m or so, and clears up the clast in drilling 31;
(2) equipment is installed:Each component of test probe is installed, and is sequentially connected drilling machine 14, drilling rod 12, high-pressure hose 13 and control Then test probe is transferred to the initial position of drilling 31 by operation console 38 processed using drilling machine 14;
(3) inspection of hermetic seal:The cock of water drain 15 of closing control operation console 38 is opened master control switch 18, is carried to test probe For detecting hydraulic pressure, closure Leakage Test is carried out to rubber bag tank 5, if without apparent drainage, carries out next step operation, otherwise Return to step (2) operates, and checks connection and the installation situation of each component, until qualified;
(4) packer permeability test is carried out:After inspection of hermetic seal qualification, packer permeability test is carried out, test probe is made to be in initial position, weight The new master control switch 18 opened on control operation console 38 simultaneously closes cock of water drain 15, high-pressure water is provided to test probe, through even Siphunculus 28, leak pipe 3, which enter, blocks cavity 30, plays the rubber of swollen front plugging device 35, middle part plugging device 36 and tail portion plugging device 37 Capsule 5 forms No.1 water filling cavity 29 and No. two water filling cavitys 34 with drilling 31 respectively, adjusts external source pressure and gradually rises To 1.5MPa, only the converter 6 of 29 pressure of No.1 water filling cavity is opened at this time, and the water filling into No.1 water filling cavity 29 waits for flow After indicating that number is stablized, the registration Q of flowmeter when record is stablized at this timei1, continue increase external source pressure to 1.7MPa, at this time by Cause the converter 6 of No.1 water filling cavity 29 to close in pressure rise, stops supplying water to No.1 water filling cavity 29, and No. two water fillings The converter 6 of cavity 34 is opened, the water filling into No. two water filling cavitys 34, after flowmeter registration stabilization, when record is stablized at this time The registration Q of flowmeteri2, and record detection range Li1And Li2
(5) release promotes:Master control switch 18 is closed, cock of water drain 15 is opened, release blocks 30 pressure of cavity, waits for rubber bag tank After 5 disengage with drilling 31, cock of water drain 15 is closed, 12 spreading test probe of another drilling rod is taken, is advanced into using drilling machine 14 Next search coverage repeats step (4) and operates, until surveying finishing drilling hole overall length;
(6) analysis is calculated:According to 31 length of drilling and corresponding observation hole section water leakage, flow in different drillings is drawn respectively Distribution map analyzes the characteristics of fracture development and Penetration Signature of different location within the scope of drillable length, further combined with different direction Dip angle of hole a and accumulative continuous leak segment length (i.e. water leakage mutation zero) Ln1+Ln2(n=1+2+....+k), it calculates To the damage envelope of different spaces range rock mass.
The part that do not addressed in the present invention uses or uses for reference prior art and can be realized.
Although more herein used the terms such as taper conversion body, converter, it is not precluded using other The possibility of term, the simple replacement that those skilled in the art under the inspiration of the present invention do these terms should all be at this Within the protection domain of invention.

Claims (10)

1. a kind of country rock permeability multistep water filling visualizer, which is characterized in that the country rock permeability multistep water filling is seen It includes test probe, control operation console (38), drilling machine (14) and drilling rod (12) to survey instrument;
The test probe includes plugging device, converter (6) and communicating pipe (28), plugging device include front plugging device (35), Middle part plugging device (36), tail portion plugging device (37);Plugging device includes leak pipe (3), is connected to connector and the rubber at leak pipe both ends Capsule (5), rubber bag tank (5) surround leak pipe (3) periphery, are formed between leak pipe (3) and block cavity (30), external source Cavity (30) is blocked by leakage hole (25) injection in leak pipe (3) and plays swollen rubber bag tank (5), and it is empty to form water filling with drilling (31) Chamber;
The drilling machine (14) is connected by drilling rod (12) with test probe, to spreading and promotes test probe to specified area Domain, drilling rod (12) they are hollow stem, are threaded, detachably, internal transportable high-pressure water;
The control operation console (38) includes cock of water drain (15), flowmeter (16), mechanical pressure gauge (17), master control switch (18) it is connect, is responsible for test with drilling machine (14) by high-pressure hose (13) with electronic pressure gage (19), control operation console (38) Probe provides the external source of specified pressure;
It is respectively formed between the front plugging device (35), middle part plugging device (36), tail portion plugging device (37) and drilling (31) No.1 water filling cavity (29) and No. two water filling cavitys (34);
The front plugging device (35) and middle part plugging device (36) left side is respectively threadedly coupled converter (6), and converter (6) includes Matrix, conversion body (10), resetting spring (9) and adjusting screw (8), converter (6) turn the high-pressure water in communicating pipe (28) Low pressure water source is shifted to be delivered in No.1 water filling cavity (29) and No. two water filling cavitys (34);
The converter (6) is opened there are one central through hole (32) and four periphery through-holes (33), and four periphery through-holes (33) are right Title is distributed in around central through hole (32);
Described central through hole (32) the left end aperture is less than right end aperture, and each periphery through-hole (33) side wall correspondence is provided with side leakage hole (25);
Conversion body (10), resetting spring (9) and adjusting screw (8) are sequentially installed in the periphery through-hole (33), periphery is logical Hole (33) inner left wall is threaded, and is matched with adjusting screw (8), and adjusting screw (8) rotation in periphery through-hole (33) is made, Compression reseting spring (9), to control the Opening pressure of conversion body (10);
Described adjusting screw (8) side wall is provided with hexagonal through-hole (21), empty convenient for rotation adjusting screw (8) and the water filling of feedback No.1 Chamber (29) and No. two water filling cavity (34) hydraulic pressure and conversion body (10) left side;
The taper conversion body (10) is more than right side diameter in not equal diameter cylinder, left side diameter, straight not waiting Diameter cylinder transition position is sealing cone (26), is matched with the sealing cone (26) of periphery through-hole (33) inner wall, sealing cone (26) it is in 30 ° of angles;
It is provided with " L " shape limbers (23) in the taper conversion body (10), in the circle close to taper conversion body (10) left side Cylindrical outer surface is provided with annular water tank (22), and limbers (23) are connected with annular water tank (22);When external source pushes taper When conversion body (10) is moved to the left, annular water tank (22) is connected with side leakage hole (20), so that external source is entered No.1 water filling empty In chamber (29) or No. two water filling cavitys (34);
Described converter (6) operation principle:
(1) when taper conversion body (10) meets PIt is leftSIt is left+kx≤PIt is rightSIt is rightWhen, then taper conversion body (10) is moved to the left, annular water tank (22) it is connected to side leakage hole (20), water filling observation is carried out to No.1 water filling cavity (29) or No. two water filling cavitys (34);
(2) when taper conversion body (10) meets PIt is leftSIt is left+kx≥PIt is rightSIt is rightWhen, then taper conversion body (10) moves right, annular water tank (22) it is closed by periphery through-hole (33) inner wall, stops supplying water to water filling cavity;
(3) if PIt is rightIt is excessive, to prevent PIt is rightExtreme hydraulic pressure damages drilling (31) inner wall of water filling chamber portion, then taper turns It changes body (10) to be moved to the left, until annular water tank (22) is moved to the left end of side leakage hole (20), with periphery through-hole (33) inner wall shape At sealing process again;
Wherein, PIt is leftSource pressure is observed for No.1 or No. two water filling cavitys, is 0.5MPa;PIt is rightTo be externally supplied source pressure, it is 1.5MPa, SIt is leftFor taper conversion body (10) left side discharge area, SIt is rightFor taper conversion body (10) right side discharge area, k is The coefficient of elasticity of resetting spring (9), x are decrement;
The control operation console (38) includes cock of water drain (15), flowmeter (16), pressure gauge one (17), master control switch (18) With pressure gauge two (19), cock of water drain (15) is responsible for that pressure water in test probe will be discharged, and makes rubber bag tank (5) and drilling (31) It disengages, test probe is promoted convenient for drilling machine (14);The responsible external source of master control switch (18) stops supplying, and flowmeter (16) is negative Duty detection external source inputs real-time water to test probe, and pressure gauge one (17) is stem-winder, and pressure gauge two (19) is electronics Table, the two registration are compared inspection, if roughly the same, show that pressure is effective.
2. country rock permeability multistep water filling visualizer according to claim 1, which is characterized in that the front blocks Device (35) includes connector one (2), leak pipe (3), connector two (4) and rubber bag tank (5), connector one (2) and connector two (4) and leak Pipe (3) is threaded, and it is external that rubber bag tank (5) surrounds leak pipe (3), by tight loop (24) be fixed on connector one (2) and It is formed between the outside of connector two (4), with leak pipe (3) and blocks cavity (30);Described connector one (2) outer end is threadedly coupled guiding Head (1), seeker (1) play the guiding role, to guide test probe smooth-going sliding in drilling (31).
3. country rock permeability multistep water filling visualizer according to claim 1 or 2, which is characterized in that the middle part Plugging device (36) includes connector two (4), leak pipe (3), connector three (7) and rubber bag tank (5), and rubber bag tank (5) passes through tight loop (24) it is fixed on the outside of connector two (4) and connector three (7);
4. country rock permeability multistep water filling visualizer according to claim 1 or 2, which is characterized in that the tail portion Plugging device (37) is fixed on by two connectors three (7), leak pipe (3) and rubber bag tank (5), rubber bag tank (5) by tight loop (24) Between two connectors three (7).
5. country rock permeability multistep water filling visualizer according to claim 3, which is characterized in that the tail portion blocks Device (37) is fixed on two by two connectors three (7), leak pipe (3) and rubber bag tank (5), rubber bag tank (5) by tight loop (24) Between connector three (7).
6. country rock permeability multistep water filling visualizer according to claim 4, which is characterized in that outside the connector three Portion is threadedly coupled circular baffle plate (11), and circular baffle plate (11) diameter is big compared with rubber bag tank (5) diameter, and rubber bag tank (5) is prevented to fall off;Circle Heart baffle (11) is threaded, and detachably, is convenient for and replaces rubber bag tank (5).
7. country rock permeability multistep water filling visualizer according to claim 5, which is characterized in that outside the connector three Portion is threadedly coupled circular baffle plate (11), and circular baffle plate (11) diameter is big compared with rubber bag tank (5) diameter, and rubber bag tank (5) is prevented to fall off;Circle Heart baffle (11) is threaded, and detachably, is convenient for and replaces rubber bag tank (5).
8. the mine roof and floor Mining failure band according to claim 1,2,5,6 or 7 is segmented observation system, feature exists In the quantity of the water filling cavity increases, design method is identical according to demand.
9. roof and floor Mining failure band in mine according to claim 4 is segmented observation system, which is characterized in that the note The quantity of water cavity, increases according to demand, and design method is identical.
10. roof and floor Mining failure band in mine according to claim 5 is segmented observation system, which is characterized in that described The quantity of water filling cavity, increases according to demand, and design method is identical.
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