CN105089664B - Automatic measurement system and method for multi-aquifer deep-hole stratified pumping test - Google Patents
Automatic measurement system and method for multi-aquifer deep-hole stratified pumping test Download PDFInfo
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Abstract
The present invention provides a kind of multi-aquifer deep hole layering bailing test automatic measurement system and method, system includes for the water-bearing layer packer that multiple water-bearing layers are mutually isolated, and the data acquisition and processing unit of the hydrogeological parameter for measuring different water cut layer, data acquisition and processing unit include data processing and display unit on the well being respectively arranged in seal casinghousing, downhole data acquisition unit, the communication cable of the downhole data acquisition unit passes through the water-bearing layer that water-bearing layer packer protrudes into underground, for acquiring the multidate information in water-bearing layer, data processing and display unit are for receiving the multidate information and being handled it to generate hydrogeological parameter data on the well.Multiple water-bearing layers can be isolated from each other by the present invention, and measure the hydrogeological parameter in each water-bearing layer respectively and real-time display comes out, and broad quantum, and sample frequency is adjustable, can satisfy the requirement of modernization layering water pumping experiment.
Description
Technical field
The present invention relates to a kind of multi-aquifer deep hole layering bailing test automatic measurement system and methods, contain suitable for multiple
The automatic measurement of hydrogeological parameter during the test of water layer drill-hole pumping.
Background technique
Currently, the acquisition of hydrogeological parameter is broadly divided into manually measurement and automatic survey during drill-hole pumping test
Two kinds of amount, manually measurement method refers to: during bailing test, staff uses the tools such as ruler, thermometer, according to
Bailing test detection requirement is measured with different frequency and record of filling in a form, and this method takes time and effort and measurement accuracy is not high；
With the progress of automatic measurement technology, there is the automatic measurer of hydrogeological parameter, measuring instrument is mounted on water
Under, set the sampling time, groundwater parameter is stored in instrument by instrument automatically after starting, greatly improve work efficiency and
Measurement accuracy.
However, being directed to the layering bailing test with the drilling of multiple water-bearing layers, existing measuring instrument exists certain
Limitation is mainly manifested in: during entire bailing test, sample frequency be cannot be adjusted and sample frequency is lower, be unable to satisfy
The sampling request of bailing test；Range is smaller, generally at tens meters or so, may not apply in deep layer monitoring holes；Structure is complicated,
It is not easy to assemble with other equipment and be used cooperatively；It can not real-time display monitoring data.
Summary of the invention
In view of the foregoing, the purpose of the present invention is to provide a kind of multi-aquifer deep holes to be layered bailing test automatic measurement
Multiple water-bearing layers can be isolated from each other using the system and method, and measure the hydrology in each water-bearing layer respectively by system and method
Simultaneously real-time display comes out geologic parameter, and broad quantum, and sample frequency is adjustable, can satisfy wanting for modernization layering water pumping experiment
It asks.
To achieve the above object, the invention adopts the following technical scheme:
A kind of multi-aquifer deep hole layering bailing test automatic measurement system, including
Water-bearing layer packer, for multiple water-bearing layers are mutually isolated,
Data processing and display unit in data acquisition and processing unit, including downhole data acquisition unit, well,
The communication cable of the downhole data acquisition unit passes through the water-bearing layer that the water-bearing layer packer protrudes into underground, for adopting
Collect the multidate information in water-bearing layer,
Data processing and display unit are for receiving the multidate information and being handled it with generating the hydrology on the well
Matter supplemental characteristic.
Further,
The water-bearing layer packer includes high-pressure nitrogen bottle, glue bucket, which is connected to the sealing of glue bucket, the glue bucket
It is connected with a pumping line.
Data processing and display unit include primary processor, clock circuit, memory, display screen, number pressure on the well
Force snesor, the clock circuit, memory are connected with the port I/O of primary processor, the number of the display screen and primary processor
It is connected according to output end, which is connected with the data input pin of primary processor；The downhole data acquisition
Unit includes pressure-temperature sensor, signal conditioning circuit, analog to digital conversion circuit, and the pressure-temperature sensor is through the signal condition
Circuit, analog to digital conversion circuit are connected with primary processor.
The power supply circuit of system includes the first power circuit and second source circuit, and first power circuit is for being described
Primary processor and clock circuit stable power-supplying, the second source circuit are controlled to a power supply by a switching circuit, second electricity
Source circuit is used to power for the memory, digital pressure sensor and an interface circuit, and the interface circuit is for being electrically connected
The downhole data acquisition unit.
The clock circuit is used for the timing of sampling time point, when the clock circuit timing does not reach sampling time point
When, the primary processor disconnects the switching circuit, when the clock circuit timing reaches sampling time point, the main process task
Device connects switching circuit.
The sample frequency of system changes according to preset logarithmic function rule, or, the sample frequency passes through an input
Unit setting, the input unit are connected with the end I/O of the primary processor.
The port I/O of the primary processor is also connected with a wireless transport module.
The through hole of the communication cable for wearing the downhole data acquisition unit, the underground are provided on the glue bucket
Data acquisition unit and glue bucket are tightly connected；Data processing and display unit, downhole data acquisition unit seal respectively on the well
Loaded in seal casinghousing.
It is layered the measurement method that bailing test automatic measurement system is realized based on above-mentioned multi-aquifer deep hole, including following
Step:
S1: underground two will be arrived by the pumping line under the water-bearing layer packer, downhole data acquisition unit aqueous
The boundary position of layer inflates glue bucket by the high-pressure nitrogen bottle, so that upper and lower two water-bearing layer is mutually isolated；
S2: the temperature in downhole data acquisition unit acquisition water-bearing layer, pressure data；
S3: data processing and display unit are according to default or input setting sample frequency on the well, described in reception
The temperature in the water-bearing layer of downhole data acquisition unit acquisition, pressure data, and the data of acquisition are handled, with generating the hydrology
Matter supplemental characteristic.
The hydrogeological parameter data include water temperature, waterlevel data, and the pressure data processing of acquisition is generated water level number
According to method be,
H=(P1-P2)/ρg (1)
Wherein, h indicates water level, P1Indicate the hydraulic pressure value of the downhole data acquisition unit acquisition, P2Indicate the number pressure
The atmospheric pressure value of force snesor acquisition, ρ indicate the density of water, and g indicates acceleration of gravity.
The present invention has the advantages that
1) multiple water-bearing layers can be isolated from each other by the present invention, and measure the hydrogeological parameter in each water-bearing layer respectively, have
Independent analysis and research are carried out conducive to water-bearing layer；
2) sample frequency can be arranged by input unit in the present invention, may also set up sample frequency, be allowed to according to certain rule
Adjustment, can satisfy the sampling request of bailing test；
3) measuring range of the invention is wide, downhole data acquisition unit can under to hundred meters even km monitoring well under realize
Data acquisition, can satisfy deepwater work；
4) structure of the invention is relatively simple, small volume, convenient for being used cooperatively with the assembling of live other equipment；
5) present invention can be acquired in real time, be shown, storing dynamic hydrogeological parameter data, and can be by acquisition, storage
Data be transmitted to host computer and be further processed, can satisfy the requirement of modernization layering water pumping experiment.
Detailed description of the invention
Fig. 1 is the composed structure block diagram of data acquisition and processing unit of the invention.
Fig. 2 is the data acquisition and the composed structure block diagram of processing unit of the preferred embodiment of the present invention.
Fig. 3 is data acquisition and the composed structure block diagram of processing unit of another preferred embodiment of the invention.
Fig. 4 is the composed structure schematic diagram of water-bearing layer packer of the invention.
Fig. 5 is the circuit diagram of the signal conditioning circuit of specific embodiments of the present invention.
Fig. 6 is the circuit diagram of the clock circuit of specific embodiments of the present invention.
Fig. 7 is the digital pressure sensor and its peripheral circuit schematic diagram of specific embodiments of the present invention.
Fig. 8 is the memory and its peripheral circuit schematic diagram of specific embodiments of the present invention.
Specific embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail.
As shown in Fig. 1,4, multi-aquifer deep hole disclosed by the invention is layered bailing test automatic measurement system, including is used for
By the mutually isolated water-bearing layer packer 1 in multiple water-bearing layers, and the data of the hydrogeological parameter for measuring different water cut layer
Acquisition and processing unit 2, data acquisition and processing unit 2 include on the well that is respectively arranged in seal casinghousing data processing and
Display unit 21, downhole data acquisition unit 22, downhole data acquisition unit 22 is through data processing on communication cable and well and shows
Show that unit 21 is electrically connected, the communication cable of downhole data acquisition unit 22 passes through water-bearing layer packer 1 and protrudes into the aqueous of underground
Layer, acquires the hydrogeological parameter information in water-bearing layer.
As shown in Figure 1, data processing and display unit 21 include primary processor, clock circuit, memory, display on well
Screen, digital pressure sensor, clock circuit is connected with the port I/O of primary processor, for providing the clock of benchmark for device
Signal, memory are connected with the port I/O of primary processor, for store acquisition hydrogeological parameter data, display screen with
The data output end of primary processor is connected, for showing treated hydrogeological parameter information, digital pressure sensor with
The data input pin of primary processor is connected, and handles for pressure compensation；Downhole data acquisition unit 22 is passed including pressure and temp
Sensor, signal conditioning circuit, analog to digital conversion circuit, the underwater temperature of pressure-temperature sensor acquisition, pressure data pass through letter
Number conditioning circuit is filtered, after enhanced processing, is transferred to primary processor after analog to digital conversion circuit is converted to digital signal, by
The temperature of data processing and 21 pairs of display unit acquisitions, pressure data generate hydrogeological parameter data after handling on well,
And it shown, stored.
As shown in Figure 2,3, in preferred embodiment, multi-aquifer deep hole of the invention is layered bailing test automatic measurement
System has the functional characteristics such as low-power consumption, sample frequency is adjustable, remote transmission, specifically,
System is battery powered, and power supply circuit is divided into the first power circuit and second source circuit, and the first power circuit is used
It powers in for primary processor and stable clock signal, second source circuit is connected by a switching circuit with battery, main process task
Device passes through the on-off of control switch circuit, and whether control second source circuit is memory, digital pressure sensor, interface circuit
Power supply, when system does not work or do not arrive sampling time point, primary processor disconnects the power supply of second source circuit, and system is in
The standby mode of low-power consumption, when arrival sampling time point needs to acquire the multidate information in water-bearing layer, primary processor connects second
The power supply of power circuit, submarine temperatures, the pressure data of the acquisition of downhole data acquisition unit 22 are transferred to primary processor.
Clock circuit can provide the clock signal of benchmark not only for system, also have the clocking capability of sampling, when clock electricity
When road timing does not reach sampling time point, primary processor disconnects switching circuit, and system is in low power consumpting state, when clock circuit meter
When reach sampling time point when, primary processor connect switching circuit, downhole data acquisition unit 22 acquire submarine temperatures, pressure
Data are transferred to primary processor, realize sampling process；Above-mentioned sampling time point, i.e. sample frequency can be preset according to one
Fixed rule is adjusted, for example, preset sample frequency is changed according to the rule of logarithmic function, sample frequency can also lead to
It crosses an input unit to be configured, which can be the input equipments such as touch display screen, computer.
The port I/O of primary processor is connected with a wireless transport module, can pass through the wireless transport module and host computer
Realize interaction of data, including setting sample frequency, calibration clock, upload sampled data etc..
Measuring range of the present invention is wide, downhole data acquisition unit 22 can under to hundred meters even km monitoring well under realize number
According to acquisition, specifically,
As shown in figure 4, water-bearing layer packer 1 includes high-pressure nitrogen bottle 10, glue bucket 11, high-pressure nitrogen bottle 10 and glue bucket 11 are logical
The sealing connection of gas-guide tube 12 is crossed, glue bucket 11 is connected with the pumping line 3 of immersible pump, and pumping line 3 is lower to underground by glue bucket 11
After the boundary position in two water-bearing layers, glue bucket 11 is inflated by high-pressure nitrogen bottle 10, the expansion of glue bucket 11 is close to the borehole wall, and two are contained
Water layer is isolated above and below；
The through hole of the communication cable for wearing downhole data acquisition unit 22 is provided on glue bucket 11, it is multiple aqueous when having
When layer, water-bearing layer packer 1 is set two-by-two, the communication cable of multiple downhole data acquisition units 22 is each passed through between water-bearing layer
Corresponding through hole is (close between the communication cable and water-bearing layer isolator of downhole data acquisition unit on each water-bearing layer packer 1
Envelope connection), no matter guarantee that each downhole data acquisition unit measures the multidate information (temperature, pressure data) in a water-bearing layer
How deep monitoring well is, as long as guaranteeing the communication cable long enough of downhole data acquisition unit 22, so that it may with realizing the water-bearing layer hydrology
The measurement of matter parameter.
It should be noted that the underground placement location of water-bearing layer packer 1, can judge, adjustment according to measurement result.When
When water-bearing layer packer 1 is not placed in the boundary position in two water-bearing layers, two downhole data acquisition units (on the packer of water-bearing layer,
Under each downhole data acquisition unit) acquisition is two coefficient multidate informations in water-bearing layer, measurement result is without obvious
Variation, and, when water-bearing layer packer 1 is placed in the boundary position in two water-bearing layers, two downhole data acquisition units acquire respectively
The multidate information in corresponding water-bearing layer, significant changes occur for measurement result, at this point, can determine whether 1 placement location of water-bearing layer packer
Correctly.
The measurement side of hydrogeological parameter is realized using above-mentioned multi-aquifer deep hole layering bailing test automatic measurement system
Method is:
S1: by immersible pump, pumping line 3 and water-bearing layer packer 1, water-bearing layer packer 1 and downhole data acquisition unit
The equipment such as 22 fit together, and will be closed under water-bearing layer packer 1, downhole data acquisition unit 22 to underground by pumping line 3
Suitable position inflates glue bucket 11 by high-pressure nitrogen bottle 10, so that upper and lower two water-bearing layer is mutually isolated；
S2: downhole data acquisition unit 22 acquires the temperature in water-bearing layer, pressure data；
S3: data processing and display unit 21 are according to the sample frequency set on well, data acquisition unit under received well
The temperature in the water-bearing layer of 22 acquisitions, pressure data, and the data of acquisition are handled, generate hydrogeological parameter data；
The hydrogeological parameter data include water temperature, waterlevel data, wherein the pressure data processing of acquisition is generated water level
The method of data is that pressure value is converted to water level value according to formula (1),
H=(P1-P2)/ρg (1)
Wherein, h indicates water level, P1Indicate the hydraulic pressure value of downhole data acquisition unit acquisition, P2Indicate digital pressure sensor
The atmospheric pressure value of acquisition, (P1-P2) be atmospheric pressure compensating after pressure value, ρ indicate water density, g indicate acceleration of gravity.
Sample frequency can be changed according to preset function changing rule, can also be arranged by input equipment.
S4: the hydrogeological parameter of generation can be stored, be shown, host computer is transmitted to through wireless transport module carry out into
One step processing etc..
As viewed in figures 5-8, in specific embodiment, the MAX267 of signal conditioning circuit selection MAXIM company production,
MAX4471, MAX9028 cake core build the filtering for realizing analog signal, enlarging function, wherein filter circuit is by MAX267 core
Piece constitutes bandpass filter (signal of 0.8~38Hz is allowed to pass through), filters flip-flop and power supply bring height in signal
Then frequency noise and Hz noise amplify processing by amplifier MAX4471, (e.g., can be selected into analog to digital conversion circuit
AD7484 chip) analog-to-digital conversion is carried out, while the signal is converted into pulse signal by low power consumption comparator MAX9028, triggering
AD7484 chip operation.
ISL12022MZ clock chip can be selected in clock circuit, provides accurately time reference for system, while providing intelligence
The alarm clock warning function of energy, makes the execution measurement task of device without any confusion, which has temperature-compensating and daylight-saving time
Automatic regulating function, on piece oscillator drift is less than ± 5ppm in -40 DEG C -+85 DEG C temperature ranges, configured with standard
IIC interface is very easy to carry out data exchange with primary processor.
Digital pressure sensor uses the MS5540C type digital pressure based on MEMS technology of Switzerland Intersema company
Sensor, MS5540C chip are carried out data transmission by SPI interface and primary processor, it needs the crystalline substance of an external 32768HZ
Vibration provides clock, and measurement water pressure data is subtracted barometric information, can eliminate influence of the atmosphere to device measurement result.
The serial interface Flash memory for the M25P80 type that memory is produced using ST Microelectronics, with 1M
There is byte (1M*8) memory space advanced protection mechanism to have SPI standard interface using 2.7V-3.6V power supply power supply,
It is easy to operate, have the advantages that data are not lost in power down, the collected data safety of device can be stored, is particularly suitable for
The use environment of system.
The realization of six needle interfaces can be used in interface circuit, wherein four needles are for the RS485 interface with downhole data acquisition unit
Module is connected, and in addition two needles with the RS232 interface module of computer for being connected, RS485 interface module and RS232 interface
Module can share ground terminal.
Primary processor selects the MSP430F5438 cake core of TI company production, and the control chip processing speed is fast, power consumption
Low, Peripheral Interface enriches；Pressure-temperature sensor uses SC-WW-1 type silicon piezoresistance type pressure-temperature sensor；Battery uses
No. 5 lithium batteries of 3.6V pressure drop.
Assembling pressure table on high-pressure nitrogen bottle 10, for monitoring the charge pressure of glue bucket 11, prevent glue bucket 11 rise brokenly or
It is difficult to achieve the effect that insulate water-bearing layer, glue bucket 11 is made of fluorine-containing rubber material, and the coefficient of expansion is good, can effectively and well
Wall is affine, reaches sealing effect, and the material of glue bucket 11 can also change according to the variation of water-bearing layer and water pumping experiment environment.
Seal casinghousing (such as Fig. 2,3 of data processing and display unit 21 on the encapsulation downhole data acquisition unit 22, well
Shown in dotted portion), designed using high leakproofness, 1000 meters of underwater sealing effects can be reached.
The above is presently preferred embodiments of the present invention and its technical principle used, for those skilled in the art
For, without departing from the spirit and scope of the present invention, any equivalent change based on the basis of technical solution of the present invention
Change, simple replacement etc. is obvious changes, all fall within the protection scope of the present invention.
Claims (5)
1. multi-aquifer deep hole is layered bailing test automatic measurement system, which is characterized in that including
Water-bearing layer packer, for multiple water-bearing layers are mutually isolated, which includes high-pressure nitrogen bottle, by fluorine-containing
Glue bucket made of rubber material, the high-pressure nitrogen bottle are connected to the sealing of glue bucket, which is connected with a pumping line, more when having
When a water-bearing layer, the water-bearing layer packer, the communication cable point of multiple downhole data acquisition units are set between water-bearing layer two-by-two
Not Chuan Guo each water-bearing layer packer so that each downhole data acquisition unit measure a water-bearing layer multidate information；
Data processing and display unit in data acquisition and processing unit, including downhole data acquisition unit, well,
Data processing and display unit generate hydrogeology ginseng for receiving the multidate information and being handled it on the well
Number data,
Data processing and display unit include primary processor, clock circuit, memory, display screen, digital pressure biography on the well
Sensor, the clock circuit, memory are connected with the port I/O of primary processor, and the data of the display screen and primary processor are defeated
Outlet is connected, which is connected with the data input pin of primary processor；The downhole data acquisition unit
Including pressure-temperature sensor, signal conditioning circuit, analog to digital conversion circuit, the pressure-temperature sensor is through signal condition electricity
Road, analog to digital conversion circuit are connected with primary processor,
The power supply circuit of system includes the first power circuit and second source circuit, which is used to be the main place
Reason device and clock circuit stable power-supplying, the second source circuit are controlled to a power supply by a switching circuit, second source electricity
Road is used to power for the memory, digital pressure sensor and an interface circuit, and the interface circuit is described for being electrically connected
Downhole data acquisition unit,
The clock circuit is used for the timing of sampling time point, when the clock circuit timing does not reach sampling time point, institute
It states primary processor and disconnects the switching circuit, when the clock circuit timing reaches sampling time point, the primary processor is connect
Logical switching circuit,
The through hole of the communication cable for wearing the downhole data acquisition unit, the downhole data are provided on the glue bucket
Acquisition unit and glue bucket are tightly connected；Data processing and display unit, downhole data acquisition unit are packaged in respectively on the well
In seal casinghousing.
2. multi-aquifer deep hole as described in claim 1 is layered bailing test automatic measurement system, which is characterized in that system
Sample frequency changes according to preset logarithmic function rule, or, the sample frequency is arranged by an input unit, the input
Unit is connected with the end I/O of the primary processor.
3. multi-aquifer deep hole as described in claim 1 is layered bailing test automatic measurement system, which is characterized in that the master
The port I/O of processor is also connected with a wireless transport module.
4. real based on the layering bailing test automatic measurement system of multi-aquifer deep hole described in any one of claims 1 to 3
Existing measurement method, which comprises the following steps:
S1: two water-bearing layer of underground will be arrived by the pumping line under the water-bearing layer packer, downhole data acquisition unit
Boundary position inflates glue bucket by the high-pressure nitrogen bottle, so that upper and lower two water-bearing layer is mutually isolated；
S2: the temperature in downhole data acquisition unit acquisition water-bearing layer, pressure data；
S3: data processing and display unit receive the underground according to default or input setting sample frequency on the well
The temperature in the water-bearing layer of data acquisition unit acquisition, pressure data, and the data of acquisition are handled, generate hydrogeology ginseng
Number data.
5. the measurement side realized as claimed in claim 4 based on multi-aquifer deep hole layering bailing test automatic measurement system
Method, which is characterized in that the hydrogeological parameter data include water temperature, waterlevel data, and the pressure data of acquisition is handled and is generated
The method of waterlevel data is,
H=(P1-P2)/ρg (1)
Wherein, h indicates water level, P1Indicate the hydraulic pressure value of the downhole data acquisition unit acquisition, P2Indicate that the digital pressure passes
The atmospheric pressure value of sensor acquisition, ρ indicate the density of water, and g indicates acceleration of gravity.
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| CN105890932B (en) * | 2016-05-25 | 2018-09-14 | 河北建筑工程学院 | Water body stratified sampler |
| CN110333332B (en) * | 2019-04-12 | 2022-03-15 | 重庆地质矿产研究院 | Intelligent pumping experiment system |
| CN111398563A (en) * | 2020-04-10 | 2020-07-10 | 中国地质调查局水文地质环境地质调查中心 | Water pumping test groundwater water level flow regulating device |
| TWI793001B (en) * | 2022-05-04 | 2023-02-11 | 美商傑明工程顧問股份有限公司 | Method of parameter inversion for an aquifer with skin effects |
| CN117146904B (en) * | 2023-10-27 | 2024-01-23 | 中国地质调查局水文地质环境地质调查中心 | Multi-aquifer groundwater environment monitoring device and method |
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