CN209310954U - The measure and control device of geostress survey system - Google Patents
The measure and control device of geostress survey system Download PDFInfo
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- CN209310954U CN209310954U CN201822001285.7U CN201822001285U CN209310954U CN 209310954 U CN209310954 U CN 209310954U CN 201822001285 U CN201822001285 U CN 201822001285U CN 209310954 U CN209310954 U CN 209310954U
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Abstract
The utility model relates to geomechanics engineering fields, provide a kind of measure and control device of geostress survey system, interface tube and pressure release component are filled the water including sealing of hole, the sealing of hole water filling interface tube is used for the packing section supply pressure fluid to packer, the sealing of hole water filling interface tube connects the sealing of hole water injection pipe of the packer, and the pressure release component is used to adjust the on-off of sealing of hole the water filling interface tube and external environment.The utility model provides a kind of sealing of hole pressure release for solving the problems, such as packer and automatic recovery sealing of hole function；Geostress survey can be carried out to the drilling of any rock stratum condition；Water injection pressure is tested in measuring point, improves test data accuracy；Meet small-bore drilling geostress survey requirement, reduce the drilling construction cost of geostress survey and can remotely monitor, suitable for small-bore deep hole geostress survey system measure and control device.
Description
Technical field
The utility model relates to geomechanics engineering field, the observing and controlling more particularly to a kind of geostress survey system is filled
It sets.
Background technique
Crustal stress be present in the earth's crust not by the natural stress of Engineering Disturbance, be in very long geological epoch, by
It is the general designation of crustal stress in the internal stress effect that the reasons such as tectonic movement generate crust materials.In general, each in the earth's crust
The crustal stress of point increases with the increase apart from earth's surface depth, due to locating tectonic position and geographical location difference, everywhere
Crustal stress is also different with the increased gradient of depth.Crustal stress is to cause mining, water conservancy and hydropower, civil construction, railway, highway, army
Thing and other various undergrounds or outdoor ground excavate the basic active force with slope project deformation and failure, what the earth's crust occurred everywhere
One shear deformation, such as pleat wrinkle ﹑ fracture are also all the results of crustal stress effect.
The stability of the magnitude of crustal stress and direction and underground engineering is closely related, and the accurate crustal stress that measures is determining engineering
Rock-soil mechanics attribute carries out Stability Analysis of The Surrounding Rock, realizes the prerequisite of geotechnical engineering excavation design and the scientification of decision-making.?
Solve crustal stress states to the storage of the stability of earthquake prediction, Evaluation of Regional Crust Stability and oilfield, nuke rubbish,
Rock burst, gas and coal outbursts, geodynamical research etc. are of great significance.Carry out geostress survey, finds out crustal stress
State can not only serve the engineering construction of all kinds of rock mass, but also can also be geodynamic study, fault activities Journal of Sex Research
Important scientific basis is provided with geo-hazard early-warning research.Geostress survey is one of the important content of geomechanics research,
It is widely used in the fields such as engineering construction, geo-hazard early-warning and fault activities Journal of Sex Research.
Earth stress measuring method is more at present, including hydraulic fracturing, acoustic-emission, Borehole Breakout Data etc. directly measure
The indirect methods of measurement such as method and over-coring stress relief method, strain restoring method.Wherein water pressure supporing method is in rock mass
In situ measurement is carried out, without directly measuring the intracorporal stress state of rock in the case where obtaining Related Rocks mechanics parameter, is had
The advantages that small, equipment is simple and convenient to operate, measured value is representative strong, adaptability is good is disturbed to protolith structural stress field, it is commonly used
In the geostress survey of all kinds of geotechnical engineerings, especially it is widely adopted in the geostress survey of deep rock mass engineering project.
The packing section pressure leak process of existing hydrofracturing detecting earth stress process, packer is influenced by hydrostatic pressure,
And keep packer pressure release affected by environment big, the recycling of equipment is influenced, currently, being suitable for directly carrying out pressure release in drilling not yet
Device, the pressure leak process for the interior packer that makes to drill is slow, influences system recycling.It is radial by bore diameter and test macro
Size condition limitation, existing test macro is all using the pressure change in drilling external testing fracturing process, due to pressure current
The transmission path of body is long, and test position is interfered by hydrostatic pressure, cannot directly and accurate measurements pressure break point position pressure, lead
Cause test data accuracy insufficient.
Utility model content
(1) technical problems to be solved
The utility model aims to solve at least one of technical problems existing in the prior art or related technologies:
(1) the pressure release circuit of packer is long, and packer is unable to pressure release by acting by external hydrostatic pressure and bounced back, and test macro recycling is tired
Difficulty causes huge engineering to waste.
(2) the valve volume for pressure fluid shunting is big, is not applied for the measurement of small-bore drilling.
(3) in the pressure data of drilling external pelivimetry pressure break pipeline, data testing accuracy remote with actual test positional distance
It is low.
(4) fracturing process lacks effective monitoring to packer packing hole state, and being easy cannot be normal to packer leakage
The case where pressure break, causes to judge by accident, and due test data is caused to lose.
The purpose of this utility model is: the sealing of hole pressure release and automatic sealing of hole function of restoring for providing a kind of solution packer are asked
Topic；Geostress survey can be carried out to the drilling of any rock stratum condition；Water injection pressure is tested in measuring point, it is accurate to improve test data
Property；Meet small-bore drilling geostress survey requirement, reduces the drilling construction cost of geostress survey and can remotely monitor, fit
The measure and control device of geostress survey system for small-bore deep hole.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of measure and control device of geostress survey system, including
Sealing of hole fills the water interface tube and pressure release component, and the sealing of hole water filling interface tube is used for the packing section supply pressure fluid to packer,
The sealing of hole water filling interface tube connects the sealing of hole water injection pipe of the packer, and the pressure release component is for adjusting the sealing of hole water filling
The on-off of interface tube and external environment.
Preferably, further include packer drain hole, connected between the sealing of hole water filling interface tube and the pressure release component
There is pressure release water-guiding hole, the pressure release component adjusts the on-off of the pressure release water-guiding hole and packer drain hole.
It in above-mentioned any scheme preferably, further include packer control water filling interface tube, the pressure release component connection
It is controlled in water filling interface tube in the packer, the packer drain hole controls the radial direction of water filling interface tube in the packer
Offer several.
In above-mentioned any scheme preferably, packer control pipe is connected on the packer control water filling interface tube
Road, injection pressure fluid presses to the pressure release component in the packer control piper.
It in above-mentioned any scheme preferably, further include pressure break water filling interface tube, the pressure break water filling interface tube connection
Pressure break water injecting pipeline and packer core pipe, the packer control water filling interface tube and sealing of hole water filling interface tube are arranged in institute
State the radial direction of pressure break water filling interface tube.
In above-mentioned any scheme preferably, the pressure break water filling interface tube, packer control water filling interface tube
It is set as being provided with three channels on shell with sealing of hole water filling interface tube, the pressure release water-guiding hole inclination connects the packing
Device control water filling interface tube and the sealing of hole fill the water interface tube.
In above-mentioned any scheme preferably, the test of the first water injection pressure is connected on the pressure break water filling interface tube
Instrument, the pressure break water filling interface tube are equipped with U-shaped recess section, and the position of the U-shaped recess section and first water injection pressure are surveyed
The installation site of examination instrument is adapted.
In above-mentioned any scheme preferably, water injection pressure test water guide is communicated on the pressure break water filling interface tube to survey
Hole, the first water injection pressure tester are connected on the water injection pressure test water guide gaging hole.
In above-mentioned any scheme preferably, the pressure release component includes pressure release needle, seal, reset spring, institute
It states pressure release needle and abuts the seal, the pressure release needle is mobile and pushes the seal mobile, lets out the packer
Water hole is connected to or disconnects with the pressure release water-guiding hole.
In above-mentioned any scheme preferably, the pressure release component further includes pressure regulation plug screw and reset spool, the tune
Pressure plug screw is screwed in the packer control water filling interface tube, and the degree of tightening of the pressure regulation plug screw is adjusted, the reset
Spring abuts the pressure regulation plug screw, and the reset spring is set on the reset spool.
(3) beneficial effect
Compared with prior art, the utility model has the advantage that
(1) measure and control device is directly connected to the sealing of hole water injection pipe of packer, and sealing of hole water injection pipe can be outside by pressure release component
Boundary's environment pressure release, releases the pressure fluid of seal section in packer directly, and pressure release height is substantially reduced, and releases hydrostatic pressure pair
The interference of pressure leak process, so that system is mobile or recycling；
(2) using three sealing of hole, pressure break, control pipe-line system arrangements, sealing of hole system and pressure break system are monitored simultaneously on ground
System pressure change, independently stable that pipeline and pressure break pipeline offer pressure fluid are sealed into packer, control piper adjusting is let out
Press the pressure release active force of component, the test request suitable for different depth；
(3) overall radial dimension of shell is limited within diameter phi 56mm, meets small-bore test request, especially suitable
In the big drilling geostress survey of level sprinkler diameter, depth；
(4) pressure test is directly carried out on measure and control device, and the pressure of the pressure fluid of pressure break water injecting pipeline is supervised
Control, monitoring is closely located to test position, more accurate to the monitoring of fracturing process.
The measure and control device of geostress survey system provided by the utility model is described further in conjunction with the following drawings.
Detailed description of the invention
Fig. 1 is the overall structure signal that the measure and control device of the utility model geostress survey system connects in a test system
Figure；
Fig. 2 is the preferred packing of one kind that the measure and control device of the utility model geostress survey system uses in a test system
The schematic cross-sectional view of device unit；
Fig. 3 is the preferred packing of one kind that the measure and control device of the utility model geostress survey system uses in a test system
The attachment structure schematic diagram of device；
Fig. 4 is the measure and control device overall structure diagram of the utility model geostress survey system；
Fig. 5 is the left view structural representation of measure and control device Fig. 4 of the utility model geostress survey system；
Fig. 6 is the right side structural representation of measure and control device Fig. 4 of the utility model geostress survey system；
Fig. 7 is the structural schematic diagram of A-A in measure and control device Fig. 4 of the utility model geostress survey system；
Fig. 8 is the structural schematic diagram of B-B in measure and control device Fig. 7 of the utility model geostress survey system；
Fig. 9 is the structural schematic diagram of C-C in measure and control device Fig. 8 of the utility model geostress survey system；
Figure 10 is the structural schematic diagram of D-D in measure and control device Fig. 8 of the utility model geostress survey system；
Figure 11 is the structural schematic diagram of E-E in measure and control device Figure 10 of the utility model geostress survey system；
Figure 12 is the partial enlargement structural representation of I in measure and control device Figure 10 of the utility model geostress survey system；
Figure 13 is that one kind used in the test macro of the measure and control device of the utility model geostress survey system is preferred
The assembly structure diagram of water injecting pipeline connector；
Figure 14 is the side structure schematic view of Figure 13 of the measure and control device of the utility model geostress survey system；
Figure 15 is the plan structure signal of state shown in Figure 13 of the measure and control device of the utility model geostress survey system
Figure；
Figure 16 is the connector of water injecting pipeline connector shown in Figure 13 of the measure and control device of the utility model geostress survey system
The schematic cross-sectional view of body；
Figure 17 is the sectional structure of fitting body F-F shown in Figure 16 of the measure and control device of the utility model geostress survey system
Schematic diagram；
Figure 18 is the limit of water injecting pipeline connector shown in Figure 13 of the measure and control device of the utility model geostress survey system
The structural schematic diagram of baffle；
Figure 19 is that packer, measure and control device and the water injecting pipeline of the measure and control device of the utility model geostress survey system connect
The connection status broken section structural schematic diagram of head；
Figure 20 is the overlooking structure diagram of Figure 19 of the measure and control device of the utility model geostress survey system.
In figure, 1, packer；101, packer core pipe；102, sealing of hole water injection pipe；103, retaining ring；104, packer rubber
Cylinder；106, sealing of hole water injection pipe pipe plug；107, core pipe pipe plug；108, pressure break note hose coupling；
2, part is filled the water；
3, measure and control device；301, pressure break fills the water interface tube；302, sealing of hole fills the water interface tube；303, packer controls water injection pipe
Interface；304, packer drain hole；305, water injection pressure tests water guide gaging hole；306, pressure release water-guiding hole；307, pressure release needle；
308, seal；309, spool is resetted；310, reset spring；311, pressure regulation plug screw；
4, water injecting pipeline connector；401, fitting body；402, postive stop baffle；403, limit skateboard；404, lock-screw；405,
Anti-loosing screw；
5, instrument connection；
7, manometric module；701, the first water injection pressure tester；702, the second water injection pressure tester；703, third fills the water
Pressure tester；
8, pressure relief device；9, shut-off valve；10, component is filled the water；11, water injecting pipeline is insulated；12, pressure break water injecting pipeline；13, it seals
Every device control piper.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Water pressure supporing method is the both ends to be drilled in the borehole using packer packing every one section, forms one
Section sealing space, injects high pressure water into borehole sealing section, by the spalling of hole wall rock mass come the measurement of definitely stress level
Method.The measure and control device of geostress survey system is by packer, instrument connection, water injecting pipeline, water injection pressure testing recorder, high pressure
The composition such as water injecting pump.
Hydrofracturing detecting earth stress process considers difficulty of construction, engineering cost and test macro requirement, for test
Bore diameter is smaller, and can test aperture includes φ 75mm, φ 91mm, φ 110mm and φ 130mm, and bore diameter limits pressure break
The radial dimension of system.Existing test macro uses tubular type two-position three way slide valve, by the sealing of hole water injecting pipeline and pressure break of packer
Water injecting pipeline is connect with same water filling main line, solves the difficulty that a plurality of pipeline of slim hole is sent into and is recycled, but deposit
Measuring accuracy is low, packer pressure release retraction is difficult after test, test condition has the shortcomings that certain limitation, in order to solve to show
There is the problem of technology, the utility model provides a kind of measure and control device of geostress survey system that can remotely control,
It is particularly suitable for the detecting earth stress process of level sprinkler diameter and the big drilling of depth.
In conjunction with shown in Fig. 1-2 0, the present embodiment provides a kind of geostress survey systems, including packer 1, packing water injection pipe
Road 11 and pressure break water injecting pipeline 12, packer 1 include upper packer, lower packet, and upper packer, lower packet are and instrument connection
5 wall surface seals to form two sections of packing sections, and pressure break test section is formed between upper packer, lower packet, and packer 1 is equipped with envelope
Every device core pipe 101 and sealing of hole water injection pipe 102, water injecting pipeline 11 is insulated to 102 supply pressure fluid of sealing of hole water injection pipe, sealing of hole water filling
Pressure fluid in pipe 102 makes 1 bulging of packer and seals with instrument connection 5 to form packing section, and pressure break water injecting pipeline 12 is to packing
101 supply pressure fluid of device core pipe, the pressure fluid in packer core pipe 101 flow into pressure break test section, further include measure and control device
3, measure and control device 3 connects upper packer, and sealing of hole water injection pipe 102 and external environment pass through 3 on-off valve regulation of measure and control device.
To reduce interfering with each other between pipeline, mutually independent packing water injecting pipeline 11 and pressure break water injecting pipeline are set
12, the independence between packer core pipe 101 and sealing of hole water injection pipe 102 is improved, any one pipeline leakage or pipeline are reduced
Influence of the failure to system testing.
Pressure fluid in sealing of hole water injection pipe 102 can be directly discharged by measure and control device 3, and measure and control device 3 with it is upper
Packer connection, after the completion of pressure break test, the pressure fluid in packer passes through the direct aerial drainage of measure and control device 3 to instrument connection 5
It is interior, hence it is evident that the pressure release height for reducing sealing of hole water injection pipe 102 solves and needs to flow back into ground by pipeline again in the prior art
The problem of carrying out pressure release, ensure that the reliability of packer pressure release.
This system further includes packer control piper 13, and the pressure fluid of packer control piper 13 is applied to measure and control device 3
Pressure, is equipped with pressure release component in measure and control device 3, and pressure release component bears pressure change and act to adjust sealing of hole water injection pipe 102 and outer
The on-off of boundary's environment.
This system is that sealing of hole, pressure break and pressure release control three independent pipe-line system structures, is same drilling multi-pipeline cloth
The measuring system set.
Packer control piper 13 is used to the pressure release component pressure into measure and control device 3, to adjust the state of pressure release component.
Usual pressure release component closes packer drain hole, and sealing of hole water injecting pipeline is in sealing state；When pressure release, pressure release component is opened, envelope
Pressure fluid in hole water injection pipe 102 is flowed out along measure and control device 3, carries out pressure release.Turning on the power for pressure release component is packer control
Fluid pressure in tubulation road 13, cracking pressure needed for pressure release component can be adjusted at any time.
Packer 1 is equipped with packer core pipe 101 and sealing of hole water injection pipe 102, is connected with measure and control device 3 on packer 1, surveys
It controls device 3 and is equipped with pressure break water filling interface tube 301, sealing of hole water filling interface tube 302 and packer control water filling interface tube 303, pressure
It splits water filling interface tube 301 and connects packer core pipe 101, sealing of hole fills the water interface tube 302 and connects sealing of hole water injection pipe 102, packer control
System water filling interface tube 303 is connect with packer control piper, adjusts the on-off of sealing of hole water filling interface tube 302 and external environment.
Specifically, the packer 1 of the present embodiment uses the packer of existing structure in conjunction with shown in Fig. 1-Fig. 3, Figure 19,20
1, packer 1 includes two, respectively upper packer and lower packet, and upper packer is identical with lower packet structure, upper and lower to seal
Sealing is bonded to each other with the inner wall of instrument connection 5 respectively every device and forms packing section, the boring sites in curing between upper and lower packer forms pressure
Split test section.
It is connected with measure and control device 3 on packer 1, by the setting of measure and control device 3, individually carries out the packing of packer 1
The supply and monitoring of the pressure fluid of section and pressure break test section.And measure and control device 3 is equipped with packer control water filling interface tube
303, the pressure fluid in sealing of hole water injection pipe 102 can be expelled directly out along pressure release passage, solved and needed back in existing structure
Flowing to ground discharge leads to problems such as packer retraction low efficiency, poor, the easy card plug of Involution in instrument connection 5.
Pressure fluid point 3 flow paths in measure and control device 3, the pressure break respectively provided to packer core pipe 101 are used
Fluid, the sealing fluid provided to sealing of hole water injection pipe 102, measure and control device control water filling interface tube 303 to packer and provide envelope
Fluid is controlled every device pressure release, the fluid of three paths is mutually indepedent, reduces interference；And insulate water injecting pipeline 11, pressure break water filling
Manometric module 7 can be set on the flow path of the pressure fluid of pipeline 12, so as to the pressure fluid in each path
State carries out independent monitoring, improves the accuracy of test process；Also manometric module 7 can be set on packer control piper 13,
Realize the long-range monitoring to three paths.Further, the compact-sized of measure and control device 3, radial dimension are small, are suitable for small-bore
The test process of drilling.
Further, pressure break water injecting pipeline 12, packing water injecting pipeline 11 and packer control pipe are connected on measure and control device 3
Road 13, three independent pipelines are independently supplied pressure fluid to three paths of measure and control device 3.Specifically, pressure break water injection pipe connects
It is connected with pressure break water injecting pipeline 12 on mouth 301, is connected with packing water injecting pipeline 11, packer control on sealing of hole water filling interface tube 302
Packer control piper 13 is connected on system water filling interface tube 303.
In practical applications, pressure break water injecting pipeline 12, packing water injecting pipeline 11 and packer control piper 13 are along ground
It is deep into test position, the length of pipeline can reach several hundred supreme kms, and pipeline is connected by the way of segmentation docking, is convenient for
The production and transportation of whole system.
Wherein pressure break water injecting pipeline 12 is used as main line, using the strong high-strength seamless steel pipe of load-bearing capacity, packing water filling
Pipeline 11 and packer control piper 13 select the lesser high-pressure rubber pipe of radial dimension, insulate water injecting pipeline 11 and packer control
When 13 development length of pipeline is big, it is easy to happen winding problem.To solve the problems, such as mutually to wind between pipeline, in the docking of pipeline
Position design has the water injecting pipeline connector 4 of limit function, and water injecting pipeline connector 4 is to pressure break water injecting pipeline 12, packing water injection pipe
Road 11 and packer control piper 13 are positioned, and cross winding between pipeline is prevented.
Specifically, pressure break water injecting pipeline 12 makes scale using the high-strength seamless steel pipe of outer diameter φ 25mm wall thickness 7.5mm
Pipeline, the load-bearing as system submit function, 22 tons of load-bearing capacity, meet bearing test system connection 1.5km total weight demand；
It insulates water injecting pipeline 11 and packer control piper 13 uses φ 12mm minor diameter high-pressure rubber pipe, reduce radial dimension.
Pass through pressure break note hose coupling 108 between pressure break water filling interface tube 301 and packer core pipe 101 on measure and control device 3
Connection, connection structure are simple.
A kind of preferred embodiment of measure and control device 3
In conjunction with shown in Fig. 3-Figure 12, system solves packer sealing of hole and pressure release control problem using measure and control device 3, while
The installation site of first water injection pressure tester 701 is set on measure and control device 3, realizes the water filling in point position to fracturing process
Pressure is directly measured.
Pipeline path in measure and control device 3: pressure break fills the water 301 one end of interface tube connection pressure break water injecting pipeline 12, the other end connects
Packer core pipe 101 is connect, sealing of hole fills the water 302 one end of interface tube connection packing water injecting pipeline 11, the other end connects sealing of hole water injection pipe
102, packer control water filling interface tube 303 connects packer control piper 13, internal installation pressure release needle, for controlling packing
Water injecting pipeline 12 and external on-off.
Wherein, water injection pressure test water guide gaging hole 305 is communicated on pressure break water filling interface tube 301, the first water injection pressure is surveyed
It tries instrument 701 and measures the Fluid pressure that water injection pressure is tested in water guide gaging hole 305, for measuring fluid pressure in packer core pipe 101
Power.
In conjunction with shown in Figure 10-12, on-off valve regulation of the packer control water filling interface tube 303 to sealing of hole water filling interface tube 302
Structure:
Pressure release water-guiding hole 306, packing are equipped between packer control water filling interface tube 303 and sealing of hole water filling interface tube 302
Pressure release component is connected on device control water filling interface tube 303, offers packer drain hole 304, pressure release on the shell of measure and control device 3
The on-off of component adjusting pressure release water-guiding hole 306 and packer drain hole 304.
Sealing of hole water filling interface tube 302, pressure release water-guiding hole 306, the connection of packer drain hole 304 form pressure release passage, sealing of hole
Pressure fluid in water injection pipe 102 is flowed out by pressure release passage, and the pressure release power of pressure release passage is that control water filling interface tube 303 is logical
The Fluid pressure entered.The Fluid pressure of control water filling interface tube 303 is connected to pressure release water-guiding hole 306, packer drain hole 304,
Pressure fluid in sealing of hole water injection pipe 102 can be expelled directly out, and complete packer pressure release.
Further, pressure release component includes pressure release needle 307, seal 308, resets spool 309,310 and of reset spring
Pressure regulation plug screw 311, pressure release needle 307 bear the Fluid pressure in packer control water filling interface tube 303, and pressure release needle 307 supports
Seal 308 is connect, pressure release needle 307 pushes the movement of seal 308 to be connected to packer drain hole 304 with pressure release water-guiding hole 306
Or it disconnects.
Seal 308 is set as spherical structure, and seal 308 is set as polyester pellet；Reset spring 310 is set as several dish-shaped bullets
Spring.
Pressure release water-guiding hole 306 is arranged between the cavity and sealing of hole water injection pipe 102 at 308 place of seal, and packer sluices
Hole 304 is arranged between pressure release needle 307 and seal 308, the radial direction of the shell of packer drain hole 304 and measure and control device 3
Outer wall conducting, so as to fluid outflow.Packer drain hole 304 is radially distributed with several in the shell of measure and control device 3, guarantees
Quick pressure releasing.
The shell of measure and control device 3 is set as irregular tubular structure, and sealing of hole fills the water interface tube 302 and pressure break fills the water interface tube
301 be the pipeline for penetrating through shell both ends, and packer control water filling interface tube 303 is also set as the intracorporal pipeline structure of shell, pressure release
The all parts of component are both connected in packer control water filling interface tube 303, and pressure release water-guiding hole 306 is to set shell is tilted
That sets is used to be connected to the pipeline of sealing of hole water filling interface tube 302 and 308 place cavity of seal, and packer drain hole 304 is and envelope
The radially-arranged pipeline in shell that water filling interface tube 303 is connected to is controlled every device.The setting of seal 308 is controlled in packer infuses
In the pipeline of waterpipe jointing 303, seal 308 is used to separate or be connected to pressure release water-guiding hole 306 and packer drain hole 304.
The pipeline extension path that pressure break fills the water interface tube 301 is equipped with U-shaped recess section, for being adapted to the test of the first water injection pressure
The U-shaped recessed position of the installation of instrument 701, pressure break water filling interface tube 301 forms groove-like structure on shell, and the first water injection pressure is surveyed
Examination instrument 701 is mounted in groove-like structure, reduces the size that the first water injection pressure tester 701 is protruded relative to shell.
The diameter of pressure break water filling interface tube 301 is arranged in packer control water filling interface tube 303 and sealing of hole water filling interface tube 302
To, packer control water filling interface tube 303 and sealing of hole water filling interface tube 302 relative to pressure break water filling interface tube 301 center at
90 ° of angles had not only met structure installation needs, but also effectively control radial structure size.
The mounting hole rear end of pressure release needle 307 is packer control water filling interface tube 303 and packer control piper 13
Connecting pin, the pressure fluid in packer control piper 13 press to pressure release needle 307, push pressure release needle 307 mobile, pressure release
Needle 307 pushes seal 308 mobile, and reset spring 310 compresses, and pressure release water-guiding hole 306 is connected to packer drain hole 304,
After realizing that pressure release drainage procedure, packing element 104 bounce back, 13 pressure release of packer control piper；The elasticity of reset spring 310 is returned
Dynamic reset spool 309 and seal 308 are pushed again, and seal 308 compresses the end face of packer control water filling interface tube 303, makes
The mounting hole self-closed of pressure release needle 307, pressure release water-guiding hole 306 and packer drain hole 304 separate, i.e. partition pressure release is logical
Road makes system restore sealing test state automatically, realizes and faces the long-range control of bore inner test macro on ground.
Test process control system pressure remains the acting by external hydrostatic pressure of test depth, moreover, different location
Greatly, from tens meters to upper km, hydrostatic pressure variation is very greatly for the drilling depth variation of stress measurement.On the one hand pressure relief system will expire
Sealing is kept under hydrostatic pressure when foot drilling full test depth, on the other hand should not make control system pressure mistake when pressure release again
Height, to guarantee system reliability.
The degree of tightening for adjusting pressure regulation plug screw 311, changes the initial deformation power of reset spring 310, and pressure fluid promotion is let out
When pressure valve 307 pressure release of needle, pressure release needle 307 pushes the thrust of seal 308 to be greater than pressure regulation plug screw 311 to reset spring 310
When preset pressing force, reset spring 310 compresses, and seal 308 resets spool 309 simultaneously to 311 1 side slip of pressure regulation plug screw,
Complete pressure release.
Pressure regulation plug screw 311 is used to adjust the preset pressing force of reset spring 310, the tightness variation of pressure regulation plug screw 311
When, the pressing force of reset spring 310 is different, pressure release power (pressure release control system needed for pressure release needle 307 opens seal 308
Pressure) it is different.Pressure release component will usually keep sealing state, and to meet test needs, i.e. seal 308 will be pressed in relief valve
The aperture of needle 307, drainage gallery keep sealing；When pressure release, under the pressure fluid effect of packer control piper 13, relief valve
Needle 307 pushes seal 308 mobile, and depressurization opens pressure release passage, packer releasing pressure automatically.
System pressurization measurement and pressure leak process
After geostress survey system assembles, when the control system of packer 1 is in halted state, measuring system should be at surveying
Examination state can be done directly sealing of hole and pressure break test process；When starting the control system progress pressure release of packer 1, it should make to seal
The hydrostatic pressure that the complete release of hole system, the hydraulic pressure provided including high pressure water-injection pump and measuring point depth are formed, guarantees packer rubber
Cylinder 104 smoothly bounces back to full size, submits measuring system freely in drilling；1 pressure release of packer is completed and on ground in face of control
After system decompression processed, measuring system should automatically restore to sealing test state.
Pressure release movement does not occur for fracturing process after sealing of hole and sealing of hole, measure and control device 3, and sealing of hole system and frac system keep close
Envelope state.The first water injection pressure tester 701 that measure and control device 3 is installed, tests and records borehole test section pressure break overall process pressure
The pressure of force flow body.
After pressure break is tested, the high pressure water that water filling interface tube 303 enters is controlled by packer, pushes pressure release needle 307
It moves forward, pressure release needle 307 pushes spherical seal 308, makes the installation of spherical seal 308 and pressure release needle 307
Hole separates and is formed gap, the water being stored in the inner cavity and packing water injecting pipeline 11 of packing element 104, by pressure release water guide
Hole 306, the cavity into where spherical seal 308, using the mounting hole front end of pressure release needle 307, into packer
Drain hole 304 is directly discharged into drilling, to make sealing of hole system entirety pressure release, packing element 104 is smooth under deformation force effect
Retraction.
This system carries out the unlatching control of distal end on ground using hydraulic pressure as power in face of pressure release component.For Guarantee control system
Reliability, control system are not provided with pressure relief mechanism in packing water injecting pipeline 11, therefore when control system does not start, pressure release needle
307 nevertheless suffer from the system acting by external hydrostatic pressure that measuring point to ground level generates.When carrying out water pressure supporing, it will survey
Amount system will be continuously finished multi-point sampler after being once sent into drilling, it is desirable that measuring system allows for smooth pressure release, while pressure release
System can automatically restore to sealing test state again afterwards, it may be assumed that ground close control system on shut-off valve 9 and open pressure release dress
After setting 8 pressure releases, spherical seal 308 should reversely push relief valve needle 307, and spherical seal 308 is made to compress pressure release again
The mounting hole of needle 307, and keep sealing state.After packer pressure release, the reset power of control system is by pressure release component
Internal reset spring 310 provides.
The hydrostatic pressure of the rock stratum point position of different depth, formation is different.Borehole test depth is bigger, and hydrostatic pressure is just
Higher, for measuring system when drilling depth capacity measuring point, the hydrostatic pressure of control system is maximum, and required reset force is also maximum.
The reset force that control system provides spherical seal 308, should meet the seal request of most deep measuring point.
According to water pressure supporing hydrostatic pressure Variation Features, in packer pressure release control system, reset spring
310 be preferably the disk spring of outer diameter φ 10mm, is combined installation according to drilling full test depth.Change every group of reset bullet
The number of combinations of spring 310 can smoothly change the size of control system reset force, specifically, every group of disk spring quantity is more,
The reset force provided under certain deformation conditions is bigger.Adjustment pressure regulation plug screw 311 tightens degree, thus it is possible to vary reset spring
310 initial pressing force, and then change control system pressure needed for pressure release needle 307 opens seal 308.
The reset sealing of control system resets spool using spool 309 and spherical 308 composite structure of seal is resetted
309 pairs of dish-shaped 310 positioning and guidings of reset spring, while the active force for transmitting reset spring 310 pushes seal 308, utilizes
The spherical surface rolling action of spherical seal 308, make seal 308 automatically with the mounting hole centering of pressure release needle 307, while ball
The seal 308 of shape improves seal 308 to aperture machining shape using the polyester pellet with higher-strength and preferably elasticity
Adaptability reduces requirement on machining accuracy while guaranteeing sealing effect.
The long-range monitoring of system
In conjunction with shown in Fig. 1, Fig. 4, Figure 19-20, manometric module is connected on packing water injecting pipeline 11, pressure break water injecting pipeline 12
7, manometric module 7 includes the first water injection pressure tester 701, the second water injection pressure tester 702, third water injection pressure tester
703；Specifically, being connected with the second water injection pressure tester 702 on packing water injecting pipeline 11, it is connected on pressure break water injecting pipeline 12
Third water injection pressure tester 703.Second water injection pressure tester 702, third water injection pressure tester 703 are managed at two respectively
The arrival end on road is arranged, and two water injection pressure testers are respectively to the injection pressure of packing water injecting pipeline 11 and pressure break water injecting pipeline 12
Power is monitored.
When pressure release, the on the second water injection pressure tester 702 and pressure break water injecting pipeline 12 on water injecting pipeline 11 is insulated
Three water injection pressure testers 703, the system pressure of display all will be reduced quickly, can directly react packer control piper 13
Working condition.Also water injection pressure tester can be set on packer control piper 13, monitor pressure leak process control piping system
Pressure, multiple monitoring are more perfect to the monitoring of test process and pressure leak process.
The first water injection pressure tester 701, pressure break water injection pipe are connected on the pressure break water filling interface tube 301 of measure and control device 3
Water injection pressure test water guide gaging hole 305 is opened up on interface 301, the test water injection pressure test of the first water injection pressure tester 701 is led
The pressure of pressure fluid in water gaging hole 305 realizes the monitoring to pressure fluid in pressure break water filling interface tube 301.First water filling
Pressure tester 701 and third water injection pressure tester 703 cooperate, and carry out multiple monitoring to pressure break water injecting pipeline 12, so as to and
The problem of Shi Faxian pressure break water injecting pipeline 12.First water injection pressure tester 701, the second water injection pressure tester 702, third note
Hydraulic pressure force tester 703 selects the device with writing function.Wherein, water injection pressure test water guide gaging hole 305 can be set to
The branch being connected on pressure break water filling interface tube 301 guarantees test accuracy for connecting the first water injection pressure tester 701.
Packing water injecting pipeline 11, pressure break water injecting pipeline 12, packer control piper 13 are all connected on water filling component 10, envelope
Shut-off valve 9, envelope are equipped between water filling component 10 every water injecting pipeline 11, pressure break water injecting pipeline 12, packer control piper 13
Every being connected with pressure relief device 8 on device control piper 13.
Water filling component 10 is set as high-pressure pump, and high-pressure pump provides pressure fluid into water injecting pipeline, and pressure fluid is preferably height
Water is pressed, high-pressure pump is set as high-pressure hydraulic pump；The connection packing water injecting pipeline 11, pressure break water injecting pipeline 12, packer control on high-pressure pump
Tubulation road 13 is equipped with shut-off valve 9 on three pipelines, to regulate and control the on-off of high-pressure pump and pipeline.Packer control piper 13
On pressure relief device 8 be set as relief valve, to regulate and control to pressure leak process.
Wherein, the first water injection pressure tester 701, the second water injection pressure tester 702, third water injection pressure tester
703, the regulatory components such as relief valve, shut-off valve 9 can be by remote adjustment, to carry out centralized operation and monitoring to system.
A kind of preferred embodiment of packer construction
In conjunction with shown in Fig. 2 and Fig. 3, packer 1 includes that may expand high-intensitive packing element 104, packer core pipe 101
With sealing of hole water injection pipe 102, retaining ring 103 etc..One is passed through in the packing element 104 of each packer for pressure break water filling
Packer core pipe 101, and withheld at 104 both ends of packing element in packer core pipe 101 using retaining ring 103, at both ends
103 position of retaining ring, seals against each other between packer core pipe 101 and packing element 104, guarantees packing section and pressure break test section
It is mutually indepedent.The both ends of packing element 104 are equipped with sealing of hole water injection pipe 102, and sealing of hole water injection pipe 102 passes through retaining ring 103,
And the gap area between 101 outer wall of sealing of hole water injection pipe 102 and 104 inner cavity of packing element and packer core pipe, realize to
The process of filling pressure fluid in packing element 104.
Upper packer, lower packet sealing of hole water injection pipe 102 be mutually butted, sealing of hole water injection pipe 102 is to packing element 104
Interior water filling keeps 104 bulging of packing element and instrument connection 5 in sealing contact；The packer core pipe 101 of two packers passes through water filling
Part 2 is mutually butted, and water filling part 2 is hollow nipple, is filled the water and is equipped with radial water-guiding hole in the middle part of part 2, fills the water part 2 for packer core pipe
101 and turned on outside, it realizes to pressure break test section stuffing pressure fluid, carries out pressure break test process.
The sealing of hole water injection pipe 102 of lower packet, packer core pipe 101 need to be closed by plugging structure, sealing of hole note
Sealing of hole water injection pipe pipe plug 106 is connected on water pipe 102, connects core pipe pipe plug 107 in packer core pipe 101.
A kind of preferred embodiment of water injecting pipeline connector 4
To realize small-bore measurement, the radial dimension of structure of measuring system is restricted, in addition to the diameter of packer and measure and control device 3
To other than size, pipe-line system is the max architecture of test macro radial direction occupy-place with connector.Water injecting pipeline connector 4 in test macro
While connecting pressure break water injecting pipeline 12, it is provided with the constraint mechanism of packing water injecting pipeline 11 and packer control piper 13,
Winding when reducing system overall radial dimension, and hose being avoided to submit in drilling.
Using pressure break water injecting pipeline 12 as main line, pressure break water injecting pipeline 12 is high-strength seamless steel pipe, insulates water injection pipe
Road 11 and packer control piper 13 use minor diameter high-pressure rubber pipe, to reduce radial dimension.Water injecting pipeline connector 4 is along ground
Several are arranged at intervals on the pipeline extended to test position, to guarantee the docking between pipeline, moreover it is possible to prevent pipeline mutual
Winding.
In conjunction with shown in Fig. 3-Figure 18, water injecting pipeline connector 4 includes fitting body 401, limit skateboard 403,404 and of lock-screw
Anti-loosing screw 405, fitting body 401 are used to connect adjacent two sections of pressure break water injecting pipelines 12, offer locating slot in fitting body 401,
It insulates water injecting pipeline 11 and packer control piper 13 to be arranged in locating slot, positioning groove upper cap is limited a slide plate 403, fitting body
It is detachably connected lock-screw 404 and anti-loosing screw 405 on 401, lock-screw 404 is locked limit skateboard 403.
Wherein, the shape of locating slot is adapted with the shape of packing water injecting pipeline 11, packer control piper 13, packing note
Water lines 11, packer control piper 13 are arranged in locating slot.
When water injecting pipeline connector 4 connects, fitting body 401 is connect with pressure break water injecting pipeline 12, fitting body 401 is set as tubulose
Structure opens up threaded hole in fitting body 401, and threaded hole is symmetrical arranged at the both ends of fitting body 401, the end of pressure break water injecting pipeline 12
Portion is equipped with thread segment, and the end sleeve of pressure break water injecting pipeline 12 is equipped with sealing ring, and two sections of pressure break water injecting pipelines 12 are in fitting body 401
Docking, fitting body 401 and pressure break water injecting pipeline 12 are connected through a screw thread, sealing ring seals, and docking mode is simple, sealing effect
Good, structural strength height.Limit skateboard 403, lock-screw 404, the cooperation of anti-loosing screw 405 are to packing water injecting pipeline 11 and packer
The high-pressure rubber pipe of control piper 13 is positioned.Lock-screw 404 is symmetrical arranged in the two sides of fitting body 401, limit skateboard 403
It is set as inverted trapezoidal structure, the end face of the small end of limit skateboard 403 compresses packing water injecting pipeline 11 and packer control piper 13, lock
Tight screw 404 runs through limit skateboard 403, and limit skateboard 403 is locked in fitting body 401 by lock-screw 404, and limit is slided
The end abutment anti-loosing screw 405 of plate 403.Interconnected counterbore and through-hole, lock-screw 404 are opened up on limit skateboard 403
Can in counterbore and through-hole slidable adjustment.
Limit skateboard 403 is used to compress packing water injecting pipeline 11 and the end face of packer control piper 13 can be to pipeline
Direction extends to arc-shaped curved surface, guarantees limit skateboard 403 to the stability maintenance of pipeline.
It insulates the position fixing process of water injecting pipeline 11 and packer control piper 13: anti-loosing screw 405 is screwed in threaded hole,
It unclamps lock-screw 404 and removes limit skateboard 403, it is then that the pipe fitting for insulating water injecting pipeline 11 and packer control piper 13 is equal
It is connected in the locating slot of fitting body 401, then limit skateboard 403 is inserted in lock-screw 404 by through hole end, slide limit skateboard
403 to counterbore end, tightens lock-screw 404, anti-loosing screw 405 is exited 3-5mm, on 405 butt joint body 401 of anti-loosing screw
Limit skateboard 403 is positioned, and connection finishes.
Above structure insulates the case where length direction of water injecting pipeline 11 or packer control piper 13 is without pipe fitting docking,
Fitting body 401 directly carries out clamping positioning to packing water injecting pipeline 11 and packer control piper 13, prevents between pipeline mutually
Winding.
Another preferred embodiment of water injecting pipeline connector 4
In conjunction with shown in Fig. 3-Figure 18, the water injecting pipeline connector 4 of the present embodiment includes all special of above-mentioned water injecting pipeline connector 4
Sign, the difference with the embodiment of above-mentioned water injecting pipeline connector 4 are:
It is additionally provided with postive stop baffle 402 on water injecting pipeline connector 4, insulates water injecting pipeline 11 and/or packer control piper 13
It is equipped with banjo fixing butt jointing, 402 snap fit connector body 401 of postive stop baffle and banjo fixing butt jointing.
Postive stop baffle 402 is set as offering the strip plate of U-lag mouth, the shape and packing water injecting pipeline of U-lag mouth
11, the pipeline shape of packer control piper 13 is adapted, and packing water injecting pipeline 11, packer control piper 13 are connected to U-shaped
In notch.Postive stop baffle 402 is arranged between the banjo fixing butt jointing on the boss and pipeline of fitting body 401,402 pairs of postive stop baffle pipes
The banjo fixing butt jointing on road is limited, and prevents pipeline from moving axially.
It insulates the position fixing process of water injecting pipeline 11 and packer control piper 13: anti-loosing screw 405 is screwed in threaded hole,
It unclamps lock-screw 404 and removes limit skateboard 403, postive stop baffle 402 is put into the link slot of fitting body 401, packing is infused
Water lines 11 and packer control piper 13 are put into postive stop baffle 402, and limit skateboard 403 is inserted in lock-screw 404 by through hole end,
Limit skateboard 403 is slided to counterbore end, lock-screw 404 is tightened, anti-loosing screw 405 is exited into 3-5mm, anti-loosing screw 405 is right
Limit skateboard 403 in fitting body 401 is positioned, and connection finishes.
The structure of the present embodiment is suitable for packing water injecting pipeline 11 or packer control piper 13 on water injecting pipeline connector 4
The position of two sections of pipe fittings docking is carried out, postive stop baffle 402 is used to limit the axial direction of pipe fitting, prevents pipe fitting from loosening or twining
Around improving the operation stability of system.
4 structure of water injecting pipeline connector recorded in both the above embodiment can be designed as two kinds of different components of structure,
It can also be integrated on a water injecting pipeline connector 4, one of pipeline is pipeline joint position, another pipeline is no docking
Through fitting structure.
The utility model water pressure supporing method, includes the following steps,
Step 1, measuring system assemble, and measure and control device 3 are connected on packer, connection water injecting pipeline connects on measure and control device 3
First 4, connection packing water injecting pipeline 11, pressure break water injecting pipeline 12, packer control piper 13 on water injecting pipeline connector 4, packing note
Water lines 11, pressure break water injecting pipeline 12, packer control piper 13 are connected to water filling component 10；
Step 2, test process, water filling component 10 pass through note to packing 11 injection pressure fluid of water injecting pipeline, pressure fluid
Water pipe pipeline connector 4, measure and control device 3 inject packer, are connected to packer bulging on the inner wall of instrument connection 5 and form packing section,
Closed pressure break test section is formed between two neighboring packing section, and packer is made to be in sealing of hole state of pressure keeping；
Component 10 is filled the water to 12 injection pressure fluid of pressure break water injecting pipeline, pressure fluid passes through water injecting pipeline connector 4, observing and controlling
Device 3 simultaneously flows into pressure break test section along part 2 is filled the water through packer, continues injection pressure fluid until completing fracturing process, infuses
Water assembly 10 stops to packing 11 injection pressure fluid of water injecting pipeline；
Step 3, packer pressure leak process fill the water component 10 to 13 injection pressure fluid of packer control piper, pressure current
Body injects measure and control device 3 by water injecting pipeline connector 4, and the pressure of packer control water filling interface tube 303 reaches in measure and control device 3
The cracking pressure of its interior pressure release component, packer control piper 13 enter state of pressure keeping；Sealing of hole fills the water interface tube in measure and control device 3
302 are connected to by pressure release water-guiding hole 306 with packer drain hole 304, the pressure fluid outflow in packer；Until packer returns
Contracting, packer control piper 13 stop pressure maintaining；
Step 4,13 pressure leak process of packer control piper open the pressure relief device 8 on packer control piper 13, directly
Pressure to packer control piper 13 is down to hydrostatic pressure, and pressure release component resets.
Specifically, on-site assembly connecting test system when measurement, after packer assembling, the installation measure and control device 3 that is linked in sequence,
Manometric module 7, using water injecting pipeline connector 4, gradually spreading packing water injecting pipeline 11, pressure break water injecting pipeline 12, packer control are managed
Road 13, until transferring packer to test layer position.After packing water injecting pipeline 11 and pressure break water injecting pipeline 12 are connected to ground, point
It An Zhuan not manometric module 7, shut-off valve 9, connection high pressure water-injection pump.After packer control piper 13 is connected to ground again, installation
Pressure relief device 8 and shut-off valve 9, connect with high pressure water-injection pump later.
Measurement process starts high pressure water-injection pump after the completion of system connection, opens packing water injecting pipeline 11, and high pressure water passes through
Insulate water injecting pipeline 11, measure and control device 3 enters 104 inner cavity of packer both ends packing element, completion pressure break test section drilling envelope
Every.Packing water injecting pipeline 11 is closed after sealing of hole, and sealing of hole system is made to be in closing state of pressure keeping.
Pressure break water injecting pipeline 12 is opened later, and high pressure water enters packer core by pressure break water injecting pipeline 12, measure and control device 3
Pipe 101, high pressure water flow into water filling part 2 by packer core pipe 101 and inject pressure break test section, and sustained water injection completes fracturing process.
After the completion of pressure break test, pressure break water injecting pipeline 12 is closed, opens packer control piper 13, high pressure water is by packing
Device control piper 13 is stored in packing element when hydraulic pressure reaches the setting cracking pressure of pressure release component into measure and control device 3
High pressure water in 104 inner cavities and packing water injecting pipeline 11, is discharged into drilling by the packer drain hole 304 of measure and control device 33, insulates
Device pressure release and automatic retracted, the water that concurrent fracturing process is stored in pressure break test section are discharged into drilling.
After packer pressure release retraction, packer control piper 13 and high pressure water-injection pump are closed, opens packer control piper
13 pressure relief device 8 makes the system pressure of packer control piper 13 be down to hydrostatic pressure, the pressure release group inside measure and control device 3
Part automatically resets, and closes packer pressure release passage, and system is restored to test mode.Complete a test process.
Send packer to the next layer of bit test point in drilling, retest process, until whole measuring points test of drilling
Terminate, recycles test macro after pressure release.
Using packing water injecting pipeline 11 and pressure break water injecting pipeline 12, in the second water injection pressure tester that ground is installed respectively
702, third water injection pressure tester 703, while the variation in water pressure of monitoring and test process sealing of hole system and frac system, analysis are surveyed
Section fracturing process abnormal conditions are tried, sealing of hole leakage and crushing rock formation situation are identified.
As can be seen from the above embodiments,
(1) it is directly connect, control the sealing of hole of packer and let out with packer using the measure and control device 3 with special construction
Pressure, pressure release component use disk spring to reset force application element as regulation, adjust every group of spring superposition quantity cooperation pressure regulation plug screw
Tighten degree, simplicity realizes the cracking pressure adjustment of control system, significantly improves the adaptability of control system；Using reset valve
Core 309 cooperates the seal 308 of elastic ball, reduces manufacturing cost while improving sealing reliability；
(2) using having the measure and control device 3 controlled with measurement function, measurement and control integral structure is formed, close to survey
Point the first water injection pressure tester 701 of installation realizes the directly measurement record of point position truthful data；
(3) it using three sealing of hole, pressure break, control water injecting pipeline system arrangements, is independently connected with ground high pressure water-injection pump,
Ground monitors sealing of hole system and frac system pressure change simultaneously, convenient for feelings such as pressure break test crash caused by identification sealing of hole leakage
Condition；
(4) radial dimension in system after all components assemblings is limited within diameter phi 56mm, meets small-bore survey
Examination requires, and constrains whole pipe-line systems using water injecting pipeline connector 4, solves the problems, such as winding of the hose in drilling；
(5) it is particularly suitable for the test for the drilling that ground aperture is small, depth is big, in engineering construction, reduces boring aperture energy
Effectively reduction construction cost, but existing detecting earth stress system is not able to satisfy the test request less than 70mm drilling；
(6) while pressure break water injecting pipeline 12 is filled the water for pressure break, have both decentralization and recycling test macro effect, use height
Intensity thick-walled seamless steel pipes, large carrying capacity meet km deep hole detecting earth stress demand.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and cannot understand
For indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it is above-mentioned that concrete condition understanding can be regarded
The concrete meaning of term in the present invention.
In addition, in the description of the present invention, unless otherwise indicated, " multiple ", " more ", " multiple groups " are meant that two
It is a or more than two.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of measure and control device of geostress survey system, which is characterized in that fill the water interface tube and pressure release component, institute including sealing of hole
Sealing of hole water filling interface tube is stated for the packing section supply pressure fluid to packer, the sealing of hole water filling interface tube connects the envelope
Every the sealing of hole water injection pipe of device, the pressure release component is used to adjust the on-off of sealing of hole the water filling interface tube and external environment.
2. the measure and control device of geostress survey system according to claim 1, which is characterized in that further include that packer sluices
Hole, the sealing of hole fill the water and are connected with pressure release water-guiding hole between interface tube and the pressure release component, described in the pressure release component adjusting
The on-off of pressure release water-guiding hole and packer drain hole.
3. the measure and control device of geostress survey system according to claim 2, which is characterized in that further include packer control
Interface tube is filled the water, the pressure release component is connected in the packer control water filling interface tube, and the packer drain hole is in institute
The radial direction for stating packer control water filling interface tube offers several.
4. the measure and control device of geostress survey system according to claim 3, which is characterized in that the packer control note
Packer control piper is connected on waterpipe jointing, injection pressure fluid is to the pressure release component in the packer control piper
Pressure.
5. the measure and control device of geostress survey system according to claim 3, which is characterized in that further include pressure break water injection pipe
Interface, the pressure break water filling interface tube connection pressure break water injecting pipeline and packer core pipe, the packer control water filling interface tube
The radial direction of the pressure break water filling interface tube is set with sealing of hole water filling interface tube.
6. the measure and control device of geostress survey system according to claim 5, which is characterized in that the pressure break water injection pipe connects
Mouth, packer control water filling interface tube and sealing of hole water filling interface tube are set as being provided with three channels on shell, institute
It states the pressure release water-guiding hole inclination connection packer control water filling interface tube and the sealing of hole fills the water interface tube.
7. the measure and control device of geostress survey system according to claim 5, which is characterized in that the pressure break water injection pipe connects
The first water injection pressure tester is connected on mouthful, the pressure break water filling interface tube is equipped with U-shaped recess section, the U-shaped recess section
Position be adapted with the installation site of the first water injection pressure tester.
8. the measure and control device of geostress survey system according to claim 7, which is characterized in that the pressure break water injection pipe connects
Water injection pressure test water guide gaging hole is communicated on mouthful, the first water injection pressure tester is connected to the water injection pressure test and leads
On water gaging hole.
9. according to the measure and control device of geostress survey system described in claim 2-7 any one, which is characterized in that described to let out
Pressure component includes pressure release needle, seal, reset spring, and the pressure release needle abuts the seal, and the pressure release needle moves
It moves and pushes the seal mobile, adjust the packer drain hole and be connected to or disconnect with the pressure release water-guiding hole.
10. the measure and control device of geostress survey system according to claim 9, which is characterized in that the pressure release component is also
Including pressure regulation plug screw and spool is resetted, the pressure regulation plug screw is screwed in the packer control water filling interface tube, the pressure regulation
The degree of tightening of plug screw is adjusted, and the reset spring abuts the pressure regulation plug screw, and the reset spring is set in the reset
On spool.
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| CN201822001285.7U CN209310954U (en) | 2018-11-30 | 2018-11-30 | The measure and control device of geostress survey system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556764A (en) * | 2018-11-30 | 2019-04-02 | 天地科技股份有限公司 | The measure and control device of geostress survey system |
| CN110984968A (en) * | 2019-12-16 | 2020-04-10 | 山东科技大学 | While-drilling pressure relief monitoring method |
| CN113417637A (en) * | 2021-06-18 | 2021-09-21 | 中国平煤神马能源化工集团有限责任公司 | Water pressurizing test system and method |
-
2018
- 2018-11-30 CN CN201822001285.7U patent/CN209310954U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556764A (en) * | 2018-11-30 | 2019-04-02 | 天地科技股份有限公司 | The measure and control device of geostress survey system |
| CN109556764B (en) * | 2018-11-30 | 2024-04-09 | 天地科技股份有限公司 | Measurement and control device of ground stress measurement system |
| CN110984968A (en) * | 2019-12-16 | 2020-04-10 | 山东科技大学 | While-drilling pressure relief monitoring method |
| CN113417637A (en) * | 2021-06-18 | 2021-09-21 | 中国平煤神马能源化工集团有限责任公司 | Water pressurizing test system and method |
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