CN110005403A - A kind of hydraulic pressure system splits the wireless automatic well test system of In-situ stress measurements - Google Patents
A kind of hydraulic pressure system splits the wireless automatic well test system of In-situ stress measurements Download PDFInfo
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- CN110005403A CN110005403A CN201910422929.6A CN201910422929A CN110005403A CN 110005403 A CN110005403 A CN 110005403A CN 201910422929 A CN201910422929 A CN 201910422929A CN 110005403 A CN110005403 A CN 110005403A
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- 238000005259 measurement Methods 0.000 title claims abstract description 80
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 23
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 239000000523 sample Substances 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000005553 drilling Methods 0.000 claims abstract description 42
- 239000011435 rock Substances 0.000 claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 17
- 239000002184 metal Substances 0.000 claims description 16
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 238000009826 distribution Methods 0.000 claims description 9
- 238000009530 blood pressure measurement Methods 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 9
- 230000006870 function Effects 0.000 description 10
- 238000004806 packaging method and process Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000005341 toughened glass Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 241001062009 Indigofera Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
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- 239000002352 surface water Substances 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/263—Methods for stimulating production by forming crevices or fractures using explosives
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing 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
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- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Remote Sensing (AREA)
- Measuring Fluid Pressure (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention provides a kind of hydraulic pressure systems to split the wireless automatic well test system of In-situ stress measurements, comprising: stress measurement probe A, for carrying out borehole fracturing, and when recording pressure break borehole fracturing section hydraulic pressure；Probe B is oriented, carries out stamp orientation for the crack to rock rupture in drilling；Pressure flow sensing and control unit C, for generating and providing hydraulic pressure to the stress measurement probe A or to the orientation probe B；Water source and pressure channel are set between the pressure flow sensing and control unit C and stress measurement probe A or orientation probe B, for exporting hydraulic pressure to the stress measurement probe A and orientation probe B；And user side smart machine, for wirelessly carrying out data transmission and reception storage between the stress measurement probe A, orientation probe B and pressure flow sensing and control unit C.The entire measurement process of present system is safe and efficient, convenient.Also, due to having used underground pressure sensor, keep measurement more accurate.
Description
Technical field
The present invention relates to a kind of wireless blue tooth, automatic measurement, super low-power consumption electronic technology, mechanical seal structure, especially relate to
And a kind of hydraulic pressure system splits the wireless automatic well test system of In-situ stress measurements.
Background technique
In geophysics, geodesic survey, engineering investigation, commonly using hydraulic pressure cracking method to the Original strata stress shape of rock mass
State measures.In measurement, drills in earth's crust detected part, then measuring probe is transferred into hole section to be measured, then use first
High-pressure hydraulic pump is suppressed to borehole survey section, until rock ruptures under the action of water pressure, is then stopped suppressing and turning off water source, be kept
Hydraulic pressure.At this point, hydraulic pressure is gradually reduced, and rock is under itself stress, and the plane of fracture is again as water flow is from rent spilling
Closure.By being carried out to parameters such as hydraulic pressure value, the pressure pump discharges of processes such as rock rupture, holding state of rupture, rupture closure
It calculates, so that it may obtain every stress parameters of measuring section rock.Then using stamp device probe to drill in rock crack into
Row stamp draws out the form of rock fracture, and fracture is oriented, so that it may obtain the information such as rock stress direction.
Above-mentioned measurement process need to split using: hydraulic pressure system pressure break probe, drilling rod, high-pressure hydraulic pump, high-pressure pump water delivery control valve,
Pressure sensor, AD collector, stamp device, orients probe, laptop/Hand held PC, in notebook/hand at flow sensor
Hold the data receiver memory module etc. of PC operation.
Currently, pressure, flow sensor are generally analog voltage output type sensor, it is mounted on high-pressure pump water delivery control valve
On, pressure, flow sensor are connected by power supply and signal wire with the AD collector at scene.AD collector is to pass by cable
Sensor powers and records the voltage value of sensor output.AD collector generally uses Alternating Current Power Supply, and passes through serial ports or usb data
Line is connected with laptop/Hand held PC, can be by the collected voltage value of AD collector by laptop/Hand held PC
Storage and real-time rendering curve are received, site operation personnel operates according to real-time curve, controls the pressure break time and pressure is big
It is small.
Orientation probe (finder) is rock fracture orientation equipment, is used together with stamp device.Due to peace in orientation probe
Equipped with electronic compass and inclination sensor, inclination sensor can measure the posture information of probe, at the same using MUC, clock and
Memory chip is acquired the posture information of probe and stores in temporal sequence.Since orientation probe is in drilling
Work, therefore the electronic circuit oriented in probe is mounted in sealed compartment, is powered using battery.In practical stamp operation, stamp
It is preceding to need to take out in the electronic circuit in orientation probe, and connect by serial ports/USB connecting line with laptop/Hand held PC,
The setting such as sampling interval, storage order, time synchronization is carried out using notebook/Hand held PC, then puts back to the sealing of finder again
In cabin.The electronic circuit in finder starts to automatically record according to setup parameter at this time.By orientation probe with stamp device according to spy
After fixed relative position is connected with posture, one piece of stamp device and orientation probe are put into drilling, carry out stamp behaviour to rock fracture
Make.After the completion of modulo operation to be printed, by finder electronic circuit by being taken out in sealed compartment, passed through using laptop/Hand held PC
Serial Port Line/USB line downloads directional data, finally obtains the direction in crack, position letter in conjunction with the fracture pattern that stamp device is printed
Breath.
Hydraulic pressure system is split In-situ stress measurements and is widely applied in engineering investigation, the exploration of tunnel stress, geodesic survey, is measuring
Scene generally will also cooperate with drilling machine and other engineering equipments, and working environment is more severe, especially in tunnel, live humidity
Greatly, or even there is a underground underground river and permeable.Under such circumstances, hydraulic pressure system splits pressure break probe, drilling rod, high-pressure hydraulic pump, stamp device
Etc. purely mechanic, high reliability equipment is unaffected, but as AD collector, laptop, finder electronic circuit, pressure pass
The electronic equipments such as sensor use in above-mentioned environment, it is easy to make moist, drench, or even damage, and at the scene to electronic circuit
The operations such as being attached, set, blocking, sealing also influences working efficiency.In addition, above equipment is surveyed in vertical shallow bore hole or lateral aperture
When amount, it is more accurate to measure, but in vertical long hole measurement, since pressure sensor is mounted on surface water pumping section position, record
It is the pressure that water pump applies, and the measurement point in deep hole, it is larger with water pump difference in height due to separate water pump, therefore measurement point is also
By drilling, the other factors such as interior water column pressure, pore pressure are influenced, the hydraulic pressure and measurement value sensor deviation of borehole fracturing section
Larger, this this may result in measurement inaccuracy or mistake.
Summary of the invention
In view of the above drawbacks of the prior art, it proposes a kind of hydraulic pressure system and splits the wireless automatic well test system of In-situ stress measurements
System, make hydraulic pressure system split In-situ stress measurements it is more accurate, efficiently, more just clean, live reliability is higher for orientation, greatly improve
Measurement efficiency.
A kind of hydraulic pressure system of the invention splits the wireless automatic well test system of In-situ stress measurements, comprising: stress measurement probe A,
For carrying out borehole fracturing, and when recording pressure break borehole fracturing section hydraulic pressure；Probe B is oriented, for rock rupture in drilling
Crack carry out stamp orientation；Pressure flow sensing and control unit C, for generate and to the stress measurement probe A or to
The orientation probe B provides hydraulic pressure；Water source and pressure channel are set to the pressure flow sensing and control unit C and stress
Between measuring probe A or orientation probe B, for exporting hydraulic pressure to the stress measurement probe A and orientation probe B；And user
Side smart machine, for wirelessly sensing and controlling with the stress measurement probe A, orientation probe B and pressure flow
Data transmission and reception storage is carried out between unit C.
Preferably, the water source and pressure channel include drilling rod or suppress pipe.
Preferably, the stress measurement probe A is transferred by the first packer, the second packer, pressure break outlet pipe, packer
Pipe and underground pressure sensor are constituted, and the first packer and the second packer are for insulating borehole fracturing section, the pressure break water outlet
Pipe to the borehole fracturing section for filling the water, and the packer transfer tube is for being connected to the first and second packers, the underground
Pressure sensor is set to the pressure break outlet pipe, for measuring the pressure of borehole fracturing section.
Preferably, the outside of first and second packer is deformable rubber material.
Preferably, the underground pressure sensor includes wireless communication module, for carrying out nothing with user side smart machine
Line communication, the sensitive face of the underground pressure sensor are exposed to the stress measurement and pop one's head in and protected by hollow out metal cap.
Preferably, the orientation probe B is made of stamp device and finder, and the finder includes wireless communication module,
For being carried out wireless communication with user side smart machine.
Preferably, the pressure flow sensing and control unit C include that hydraulic pressure generates power device, water distribution system and flow
And device for pressure measurement.
Preferably, it is pressure pump that the hydraulic pressure, which generates power device,；The water distribution system include gross pressure valve, pressure valve,
Packer valve and back-water valve (BWV), for control two-way pressure output be isolated, connect all the way with the pressure channel, all the way with it is described
The connection of water source channel；The flow and device for pressure measurement include wireless electron flowmeter, wireless electron pressure gauge and packer
Pressure gauge, the wireless electron flowmeter, wireless electron pressure gauge are used to measure the hydraulic pressure and flow at water distribution system output position
Value.
Preferably, the underground pressure sensor, the finder, the wireless electron flowmeter and the radio
Sub- pressure gauge all has metal shell, for sealing internal circuit, and all has the Bluetooth antenna for stretching out the metal shell,
The Bluetooth antenna surface has waterproof protective layer.
Preferably, the user side smart machine includes the Intelligent mobile equipment with wireless communication module, the intelligence
Mobile device includes smart phone.
The invention has the following beneficial effects: the present invention to utilize wireless blue tooth, super low-power consumption electronic technology and smart phone,
Propose a kind of wireless low-power consumption automatic well test device and workflow that In-situ stress measurements are split for hydraulic pressure system.Wherein, originally
The measurement sensing element provided is provided, is protected and is sealed using metal shell, battery is powered, automatic measurement, and bluetooth controlled in wireless passes
Defeated, working site does not use cable and plug, is controlled by smart phone, keeps pressure measurement in In-situ stress measurements more quasi-
Really, succinctly, live reliability is higher, greatly improves measurement efficiency.Moreover, installing wireless blue tooth number additional at well-logging probe position
Word pressure sensor removes cable bring hardware costs and operation interference from, further can directly measure fracturing section
Pressure, substantially increase measurement accuracy.
Detailed description of the invention
Illustrate technical solution of the present invention in order to clearer, it below will be to attached drawing needed in embodiment description
It is briefly described, it is clear that, the accompanying drawings in the following description is only the embodiment of the present invention, for the common skill of this field
Art personnel can also be obtained according to these attached drawings other accompanying drawings without creative efforts.
Fig. 1 shows for the structure that the hydraulic pressure system of one embodiment of the present of invention splits the wireless automatic well test system of In-situ stress measurements
It is intended to.
Fig. 2 be underground pressure sensor of the invention, wireless electron pressure gauge, wireless electron flowmeter and finder system
One electric schematic illustration.
Specific embodiment
Below by embodiment, the invention will be further described, and purpose, which is only that, more fully understands research of the invention
The protection scope that content is not intended to limit the present invention.
As shown in Figure 1, a kind of hydraulic pressure system of one embodiment of the present of invention splits the wireless automatic well test system of In-situ stress measurements
System, comprising: stress measurement probe A, for carrying out borehole fracturing, and when recording pressure break borehole fracturing section hydraulic pressure；Orientation probe
B carries out stamp orientation for the crack to rock rupture in drilling；Pressure flow sensing and control unit C, for generate and to
The stress measurement probe A provides hydraulic pressure to the orientation probe B；Drilling rod (water source and pressure channel) 10 is set to described
Between pressure flow sensing and control unit C and stress measurement probe A or orientation probe B, it is used for the stress measurement probe A
It exports water source or exports hydraulic pressure to orientation probe B；Suppress pipe (water source and pressure channel) 9 is set to the pressure flow sensing
And between control unit C and stress measurement probe A, for exporting hydraulic pressure to the stress measurement probe A；User side is intelligently set
It is standby, it is used for wirelessly between the stress measurement probe A, orientation probe B and pressure flow sensing and control unit C
Carry out data transmission and reception storage.
Each component part of present system is described in detail below.Stress measurement probe A is by the first packer
(upper packer) 11a, the second packer (lower packet) 11b, pressure break outlet pipe 13, packer transfer tube 12 and down-hole pressure pass
Sensor 15 is constituted.First packer 11a and the second packer 11b (sometime collectively referred to as packer 11) is for insulating borehole fracturing
Section, pressure break outlet pipe 13 are used to fill the water to borehole fracturing section, and packer transfer tube 12 is for being connected to the first packer 11a and second
Packer 11b, underground pressure sensor 15 are set on pressure break outlet pipe 13, for measuring the pressure of borehole fracturing section.
Wherein, the outside of described first and second packers 11a, 11b are deformable rubber material.Upper packer 11a's
Top has the connector connecting with suppress pipe 9 and drilling rod 10.By packer connecting tube 12 between upper and lower two packers 11a, 11b
It is connected, packer 11, packer connecting tube 12 are connected to packer suppress pipe 9.It is sealed when passing through packer suppress pipe 9 to upper and lower
When device 11 is suppressed, upper and lower two packers 11 can expand simultaneously, fit closely with drilling, make lower packet 11a, 11b it
Between drilling be in sealing state.10 connector of standard drill pipe of the upper end upper packer 11a, with 13 structure of drilling rod 10 and pressure break outlet pipe
As connectivity structure, there is apopore 14 on pressure break outlet pipe 13, when pressing water by drilling rod 10, water flow can be flowed from apopore 14
Out.
There is telemetry circuit, the telemetry circuit is by MCU controller, memory, bluetooth mould inside underground pressure sensor 15
The elements such as block, clock chip, pressure sensor, battery composition.Wherein, bluetooth module is used for and user side smart machine carries out nothing
Line communication.Certainly, in other embodiments, wireless communication module well known to WiFi, ZigBee etc. also can be used.Down-hole pressure
Sensor 15 uses MEMS pressure sensor, and sensitive face exposes stress measurement probe, and is protected by hollow out metal cap.Underground pressure
Force snesor 15 has metal shell, and is sealed using "O"-ring and containment member, and telemetry circuit is sealed in metal shell
It is interior, only stretch out the Bluetooth antenna with waterproof protective layer.Specifically, Bluetooth antenna passes through plastic packaging, and uses metal on its periphery
Fence and tempered glass protection.Sensor and element use ultra low power devices, are powered by the battery of large capacity, primary charging or
Replace battery, the working time at 30 hours or more, can its periphery of automatic measurement hydraulic pressure.
Probe B is oriented, is made of stamp device 17 and finder 18.17 shell of stamp device be rubber material and by connector with
Drilling rod 10 connects, when measurement by drilling rod 10 to its inside suppress, 17 shell of stamp device can expand, will be on the wall of a borehole
Crack lines is imprinted on its surface.18 use of finder does shell without magnetic metal material, interior by MCU controller, memory, clock
The elements such as chip, electronic compass, inclination sensor, Bluetooth chip, battery charging chip constitute sensing telemetry circuit.Wherein, blue
Tooth chip is used for and user side smart machine carries out wireless communication.Certainly, in other embodiments, also can be used WiFi,
Wireless communication module well known to ZigBee etc..Sensor and element use ultra low power devices, are powered by the battery of large capacity, and one
Secondary charging or replacement battery, the working time was at 30 hours or more.Finder 18 have metal shell, and using "O"-ring with it is close
Component sealing is sealed, telemetry circuit and sensor are sealed in metal shell, only stretches out the bluetooth day with waterproof protective layer
Line.Specifically, Bluetooth antenna passes through plastic packaging, and is protected on its periphery using metal fence and tempered glass.
Pressure flow sensing and control unit C include that hydraulic pressure generates power device, water distribution system and flow and pressure measurement
Device.It is pressure pump 1 that hydraulic pressure, which generates power device,；The water distribution system includes gross pressure valve 2, pressure valve 3,5 and of packer valve
Back-water valve (BWV) 4, for control two-way pressure output be isolated, connect all the way with suppress pipe (pressure channel) 9, all the way with drilling rod (water
Source channels) 10 connections；Flow and device for pressure measurement include wireless electron flowmeter 6, wireless electron pressure gauge 7 and packer pressure
Power table 8, for recording various pressure and flow parameter in work.In the wireless electron flowmeter 6, wireless electron pressure gauge 7
Set the elements such as MCU controller, memory, clock chip, pressure sensor, Bluetooth chip, battery charging chip and pressure, flow
Sensor is sealed using metal shell, for measuring the hydraulic pressure and flow value at water distribution system output position.Sensor and element make
It with ultra low power devices, is powered by the battery of large capacity, primary charging or replacement battery, the working time was at 30 hours or more.It should
Wireless electron flowmeter 6, wireless electron pressure gauge 7 have metal shell, and telemetry circuit and sensor are sealed in metal-back
In vivo, the Bluetooth antenna with waterproof protective layer is only stretched out.Specifically, Bluetooth antenna passes through plastic packaging, and uses gold on its periphery
Belong to fence and tempered glass protection.
User side smart machine 16 includes the Intelligent mobile equipment with wireless communication function, for wirelessly setting
Determine, control, each measuring probe and component of operating system, and reception and storing data.Preferably, the Intelligent mobile equipment example
For example with the smart phone of bluetooth module.Certainly, in other embodiments, also can be used well known to WiFi, ZigBee etc.
Wireless communication module.
The course of work that hydraulic pressure system of the invention splits the wireless automatic well test system of In-situ stress measurements is described in detail below.It is first
The bluetooth connection function of first using smart phone 16, by the underground pressure sensor 15 of smart phone 16 and stress measurement probe A,
7 connection of wireless electron pressure gauge 6 and wireless electron flowmeter of pressure flow sensing and control unit C, it is synchronous carrying out clock
Afterwards, the parameters such as sample frequency, amplification factor, data format are set；Then, aobvious using the real-time curve of smart phone 16
Show function, the measured value of wireless electron pressure gauge 6 and wireless electron flowmeter 7 can be obtained in real time and draws curve.
Underground pressure sensor 15 complete setting after just follow stress measurement probe A together enter drilling detected part into
Row fracturing operation.Drilling rod 10 and packer suppress pipe 9 are connected with stress measurement probe A first, visited stress measurement with drilling rod 10
Head A is inserted into the detected part of drilling, and packer suppress pipe 9 is hose, enters together with drilling rod 10 and stress measurement probe A and bores
Hole.Stress measurement probe A is after entering drilling, and the Bluetooth signal of underground pressure sensor 15 will be unable to connection, at this point, underground
Pressure sensor 15 can be constantly in automatic collection, recording status according to setup parameter.Stress measurement probe A enters position to be measured
Afterwards, operator is first shut off pressure valve 3, opens gross pressure valve 2, packer valve 5 and back-water valve (BWV) 4, back-water valve (BWV) 4 and downcomer 20
Then pressure pump 1 is opened in connection.Upper packer 11a is connected to by packer transfer tube 12 with lower packet 11b, and water flow is being pressed
Under 1 effect of power pump, by upper hose 19 by pressure pump 1, gross pressure valve 2 and packer valve 5, enters through packer suppress pipe 9 and answer
The upper lower packet 11 of power measuring probe A.Since back-water valve (BWV) 4 is in the open state, while water flow enters upper lower packet 11,
Air in packer 11 and pipeline can be discharged with back-water valve (BWV) 4.Continue to suppress and slowly turn down back-water valve (BWV) 4, upper lower packet
Pressure in 11 can be gradually increasing, and be expanded under the action of water pressure, and borehole survey section is insulated into a closed hole section.Up and down
After the expansion in place of packer 11, packer valve 5 is closed, so that packer 11 is kept pressure and packing state, simultaneously closes off pressure pump
1.Packer pressure table 8 shows the pressure state of packer 11, since in entire test process, 11 pressure of packer only needs to protect
It is fixed to keep steady, and without continuous record, therefore mechanical gauge outfit can be used in packer pressure table 8.
After completing the packing operation of packer 11, fracturing operation can be carried out.First by gross pressure valve 2, pressure valve 3, back-water valve (BWV) 4
Pressure pump 1 is opened, and packer valve 5 remains off.Pressure pump 1 is opened, water flow is under the effect of pressure pump 1, by upper hose 19
By pressure pump 1, gross pressure valve 2 and pressure valve 3 enter through wireless electron pressure gauge 6, wireless electron flowmeter 7, drilling rod 10 and answer
The pressure break outlet pipe 13 (drilling rod 10 is connectivity structure with pressure break outlet pipe 13) of power measuring probe A, and entered by apopore 14 and surveyed
It measures in section drilling.Since back-water valve (BWV) 4 is in the open state, the air in drilling and pipeline can be discharged with back-water valve (BWV) 4.To air
After emptying, close back-water valve (BWV) 4, drill in pressure rise rapidly, drill in rock rise to a certain extent with pressure by pressure break,
Water flow flows into stratum by crack.Underground pressure sensor 15 is by pressure in the drilling for automatically recording this process and stores, wirelessly
Electronic pressure gage 6, wireless electron flowmeter 7 will also record the pressure and data on flows at pressure pump end during this and pass through indigo plant
Tooth signal is sent to smart phone 16 in real time.Drawing data curve, operator can be passed through real-time curve by smart phone 16
Intercepting the valuable period is stored.After the completion of fracturing operation, stress measurement probe A is taken out from drilling.Stress is surveyed at this time
Measure probe A underground pressure sensor 15 again with 16 bluetooth connection of smart phone, user by smart phone 16 obtain come
From the data of wireless electron pressure gauge 6 and wireless electron flowmeter 7, the period needed downloading underground pressure sensor 15 is selected
Data, and delete unwanted data (memory of stress measurement probe A can continuously record 10 hours or so data).
Next stamp operation is carried out.Likewise, the bluetooth connection function of smart phone 16 is first passed through, by smart phone
16, with 18 connection of finder, it is synchronous that clock are carried out to it, then are set to parameters such as sample frequency, data formats.It has set
Orientation probe B connect with drilling rod 10, will be oriented in probe B insertion drilling by drilling rod 10 by Cheng Hou.Orientation probe B is entering
After drilling, the Bluetooth signal of finder 18 will be unable to connection, and finder 18 will be constantly according to setup parameter and automatically record
State.Wait orient probe B be inserted into drilling need the position of stamp after, close packer valve 5, open gross pressure valve 2, pressure valve
3 and back-water valve (BWV) 4, it opens pressure pump 1 and pressurizes, water flow passes through pressure pump 1, gross pressure valve under the effect of pressure pump 1, by upper hose 19
2 and pressure valve 3, the stamp device 17 of orientation probe A is entered through wireless electron pressure gauge 6, wireless electron flowmeter 7, drilling rod 10.By
In the open state in back-water valve (BWV) 4, the air in stamp device and pipeline can be discharged with back-water valve (BWV) 4.After air emptying, close
Back-water valve (BWV) 4, pressure rises rapidly in stamp device 18, and superficial expansion is tightly attached to it on the wall of a borehole, due to 17 shell of stamp device
For soft rubber, thus can by drilling crack and rupture event be printed on its surface.At this point, electronics sieve in finder 18
Disk, inclination sensor will accurately record the posture and direction value of stamp device 17.While stamp, smart phone 16 can be used to remember
Record the time data of stamp operation.After the completion of stamp, orientation probe B is taken out from drilling.The finder 18 of probe B is oriented at this time
Again the posture of the period downloading finder 18 needed with 16 bluetooth connection of smart phone, user by the selection of smart phone 16
And bearing data, and unwanted data are deleted, while according to the printing of the posture of finder 18, directional information and stamp device 17
Situation, record draw borehole fissure and rupture event.Entire measurement process is completed.
In aforesaid operations, smart phone 16 is can be used in all measurement parameter settings, data downloading, Drawing of Curve observation
It is completed by Bluetooth function, all electronic equipments are in addition to smart phone, in respective sealing shell, are not necessarily to plug or electricity
Cable connection, without being exposed under work on the spot environment.Entire measurement process is safe and efficient, convenient.And due to using
Underground pressure sensor 15, pressure sensor can directly acquire the pressure value of rock rupture point, keep measurement more accurate.
It is illustrated in figure 2 underground pressure sensor 15, wireless electron pressure gauge 6, wireless electron flowmeter 7, finder 18
Unified electric schematic illustration.In Fig. 2, B1 is system power supply, uses No. 1 battery of universal type industrial grade high energy, 3.6V/
19Ah.U1 is power supply control chip, using ADP7104 low pressure drop high precision electro source chip, the voltage stabilization that battery B1 is exported
To 3.3V, as system power supply.U2 is the super low-power consumption MCU with bluetooth and data storage function.This system is blue using LT5926
Tooth single-chip microcontroller carries flash storage, serial port, ADC and bluetooth module, super low-power consumption, may be programmed into sleep for electricity saving mode
Or it wakes up.E1 is Bluetooth antenna circuit, and in actual use, antenna is protected by plastic packaging.U7 is that RS232 is serial as selectable unit (SU)
Mouth circuit, can provide the serial communication other than bluetooth for user.U3 is clock chip, provides accurate clock data for system,
It can be calibrated by Bluetooth function, keep each component clocks synchronous.U4 and U5 is used for the directional operation of finder 18, and U4 is ultralow
Power consuming electronic compass can record the directional information of equipment, and U5 is MEMS high-precision super low-power consumption inclination sensor, can record equipment
Posture information.SENOR1 is hydrostatic sensor, and SENER2 is flow sensor, is differential voltage output.It is poor through sensor
After the cathode ground connection of sub-signal, becomes single-ended signal, be output to the ADC of single-chip microcontroller.LT5926 bluetooth single-chip microcontroller is 16 included
ADC can be used for voltage signal acquisition.This system also has AD number gauge outfit U6, and facilitating user, naked eyes monitor in real time at the scene.It is real
Border is in use, digital gauge outfit is shown after plastic packaging, securely and reliably.
Since Fig. 2 is underground pressure sensor 15, wireless electron pressure gauge 6, wireless electron flowmeter 7, the system of finder 18
One electric principle road, as long as therefore respective function can be realized in the removal of unwanted part.For finder 18, using
In, remove digital gauge outfit U6, pressure sensor SENSOR1, flow sensor SENSOR2；For underground pressure sensor
15, display function is not needed, recording equipment posture is not needed yet, therefore removes flow sensor SENOR2, digital gauge outfit U6, electricity
Sub- compass U4 and inclination sensor U5；For wireless electron pressure gauge 6 and wireless electron flowmeter 7, due to being pressed on well
Power pumps 1 section of use, without recording posture information, it is only necessary to realize sensing and display function, therefore respectively pressure needed for connection passes
Sensor SENSOR1 or flow sensor SENSOR2, and encumbrance code table head U6 remove electronic compass U4 and inclination sensor U5
?.
Obviously, those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate this
Invention, and be not used as limitation of the invention, as long as in spirit of the invention, to embodiment described above
Variation, modification will all fall in claims of the present invention range.
Claims (10)
1. a kind of hydraulic pressure system splits the wireless automatic well test system of In-situ stress measurements characterized by comprising
Stress measurement probe A, for carrying out borehole fracturing, and when recording pressure break borehole fracturing section hydraulic pressure；
Probe B is oriented, carries out stamp orientation for the crack to rock rupture in drilling；
Pressure flow sensing and control unit C, for generating and being mentioned to the stress measurement probe A or to the orientation probe B
For hydraulic pressure；
Water source and pressure channel are set to the pressure flow sensing and control unit C and stress measurement probe A or orientation probe
Between B, for exporting hydraulic pressure to the stress measurement probe A and orientation probe B；And
User side smart machine, for wirelessly being passed with the stress measurement probe A, orientation probe B and pressure flow
Data transmission and reception storage is carried out between sense and control unit C.
2. hydraulic pressure system according to claim 1 splits the wireless automatic well test system of In-situ stress measurements, which is characterized in that described
Water source and pressure channel include drilling rod or suppress pipe.
3. hydraulic pressure system according to claim 2 splits the wireless automatic well test system of In-situ stress measurements, which is characterized in that described
Stress measurement probe A is by the first packer, the second packer, pressure break outlet pipe, packer transfer tube and underground pressure sensor
It constitutes, the first packer and the second packer are used to press to the drilling for insulating borehole fracturing section, the pressure break outlet pipe
Section water filling is split, the packer transfer tube is set to institute for being connected to the first and second packers, the underground pressure sensor
Pressure break outlet pipe is stated, for measuring the pressure of borehole fracturing section.
4. hydraulic pressure system according to claim 3 splits the wireless automatic well test system of In-situ stress measurements, which is characterized in that described
The outside of first and second packers is deformable rubber material.
5. hydraulic pressure system according to claim 1 splits the wireless automatic well test system of In-situ stress measurements, which is characterized in that described
Underground pressure sensor includes wireless communication module, for being carried out wireless communication with user side smart machine, the down-hole pressure
The sensitive face of sensor is exposed to the stress measurement and pops one's head in and protected by hollow out metal cap.
6. hydraulic pressure system according to claim 1 splits the wireless automatic well test system of In-situ stress measurements, which is characterized in that described
Orientation probe B is made of stamp device and finder, and the finder includes wireless communication module, is used for and user side smart machine
It carries out wireless communication.
7. hydraulic pressure system according to claim 1 splits the wireless automatic well test system of In-situ stress measurements, which is characterized in that described
Pressure flow sensing and control unit C include that hydraulic pressure generates power device, water distribution system and flow and device for pressure measurement.
8. hydraulic pressure system according to claim 7 splits the wireless automatic well test system of In-situ stress measurements, which is characterized in that described
It is pressure pump that hydraulic pressure, which generates power device,；The water distribution system includes gross pressure valve, pressure valve, packer valve and back-water valve (BWV), is used
In control two-way pressure output be isolated, connect with the pressure channel, connect all the way with the water source channel all the way；The stream
Amount and device for pressure measurement include wireless electron flowmeter, wireless electron pressure gauge and packer pressure table, the wireless electron
Flowmeter, wireless electron pressure gauge are used to measure the hydraulic pressure and flow value at water distribution system output position.
9. splitting the wireless automatic well test system of In-situ stress measurements according to hydraulic pressure system described in claim 2 or 6 or 8, feature exists
In the underground pressure sensor, the finder, the wireless electron flowmeter and the wireless electron pressure gauge have
There is metal shell, for sealing internal circuit, and all has the Bluetooth antenna for stretching out the metal shell, the Bluetooth antenna
Surface has waterproof protective layer.
10. hydraulic pressure system splits the wireless automatic well test system of In-situ stress measurements according to claim 1, which is characterized in that described
User side smart machine includes the Intelligent mobile equipment with wireless communication module, and the Intelligent mobile equipment includes intelligent hand
Machine.
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| CN201910422929.6A CN110005403A (en) | 2019-05-21 | 2019-05-21 | A kind of hydraulic pressure system splits the wireless automatic well test system of In-situ stress measurements |
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