CN105089664A - Automatic measuring system and method for layered water pumping test of deep hole including multiple water-bearing strata - Google Patents
Automatic measuring system and method for layered water pumping test of deep hole including multiple water-bearing strata Download PDFInfo
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Abstract
The invention provides an automatic measuring system and method for a layered water pumping test of a deep hole including multiple water-bearing strata. The system comprises a water-bearing stratum packer used for isolating the multiple water-bearing strata, and a data collecting and processing device used for measuring the hydrogeological parameters of different water-bearing strata. The data collecting and processing device comprises an aboveground data processing and displaying unit and an underground data collecting unit, wherein the aboveground data processing and displaying unit and the underground data collecting unit are arranged in a sealed shell. A communication cable of the underground data collecting unit penetrates through the water-bearing stratum packer to stretch into the water-bearing strata underground and is used for collecting dynamic information of the water-bearing strata. The aboveground data processing and displaying unit is used for receiving the dynamic information and further processing the dynamic information so as to generate hydrogeological parameter data. By the adoption of the automatic measuring system and method, the multiple water-bearing strata can be isolated from one another, and the hydrogeological parameters of all the water-bearing strata are measured and displayed in real time; moreover, the measuring range is wide, the sampling frequency is adjustable, and the requirements for the modernization layered water pumping test can be met.
Description
Technical field
The present invention relates to a kind of multi-aquifer deep hole layering pumping test automatic measurement system and method, be applicable to the automatic measurement of hydrogeological parameter in the drill-hole pumping process of the test of multiple aquifers.
Background technology
At present, in drill-hole pumping process of the test, the acquisition of hydrogeological parameter is mainly divided into measurement manually and automatically measures two kinds, measuring method refers to manually: in pumping test process, staff uses the instrument such as ruler, thermometer, carry out measuring and record of filling in a form with different frequency according to pumping test detection requirement, this method takes time and effort and certainty of measurement is not high; Along with the progress of automatic measurement technology, there is the automatic measurer of hydrogeological parameter, measuring apparatus has been arranged under water, sets the sampling time, after starting, groundwater parameter is stored in instrument by instrument automatically, substantially increases operating efficiency and certainty of measurement.
But, be directed to the layering pumping test with the boring of multiple aquifer, existing measuring apparatus has some limitations, and is mainly manifested in: in whole pumping test process, sample frequency can not adjust and sample frequency is lower, cannot meet the sampling request of pumping test; Range is less, generally at about tens meters, can not be applied in deep layer monitoring holes; Complex structure, be not easy to other device assembles with the use of; Monitored data cannot be shown in real time.
Summary of the invention
In view of the foregoing, the object of the present invention is to provide a kind of multi-aquifer deep hole layering pumping test automatic measurement system and method, utilize this system and method multiple aquifer can be isolated from each other, and measure the hydrogeological parameter in each aquifer respectively and show in real time, and broad quantum, sample frequency is adjustable, can meet the requirement of modernization layering water pumping experiment.
For achieving the above object, the present invention is by the following technical solutions:
A kind of multi-aquifer deep hole layering pumping test automatic measurement system, comprises
Aquifer packer, for by mutually isolated for multiple aquifer,
Data acquisition and treating apparatus, comprise downhole data collecting unit, aboveground data processing and display unit,
The communication cable of this downhole data collecting unit stretches into the aquifer of down-hole through this aquifer packer, for gathering the multidate information in aquifer,
This aboveground data processing and display unit are for receiving this multidate information and processing to generate hydrogeological parameter data to it.
Further,
Described aquifer packer comprises high-pressure nitrogen bottle, glue bucket, and this high-pressure nitrogen bottle seals with glue bucket and is communicated with, and this glue bucket is connected with a pumping line.
Described aboveground data processing and display unit comprise primary processor, clock circuit, memory, display screen, digital pressure sensor, this clock circuit, memory are all connected with the I/O port of primary processor, this display screen is connected with the data output end of primary processor, and this digital pressure sensor is connected with the data input pin of primary processor; Described downhole data collecting unit comprises pressure-temperature sensor, signal conditioning circuit, analog to digital conversion circuit, and this pressure-temperature sensor is connected with primary processor through this signal conditioning circuit, analog to digital conversion circuit.
The power supply circuits of system comprise the first power circuit and second source circuit, this first power circuit is used for for described primary processor and clock circuit stable power-supplying, this second source circuit is connected with power supply by an on-off circuit, this second source circuit is used for powering for described memory, digital pressure sensor and an interface circuit, and this interface circuit is for being electrically connected described downhole data collecting unit.
Described clock circuit is used for the timing of sampling time point, when described clock circuit timing does not arrive sampling time point, described primary processor disconnects described on-off circuit, when described clock circuit timing arrives sampling time point, and described primary processor turn on-switch circuit.
The sample frequency of system is according to the logarithmic function rule change preset, or described sample frequency is arranged by an input block, and this input block is held with the I/O of described primary processor and is connected.
The I/O port of described primary processor is also connected with a wireless transport module.
Described glue bucket has the through hole of the communication cable for wearing described downhole data collecting unit, described downhole data collecting unit and glue bucket are tightly connected; Described aboveground data processing and display unit, downhole data collecting unit are packaged in seal casinghousing respectively.
Based on the measuring method that above-mentioned multi-aquifer deep hole layering pumping test automatic measurement system realizes, comprise the following steps:
S1: by described pumping line by the boundary position to aquifer, down-hole two under described aquifer packer, downhole data collecting unit, by described high-pressure nitrogen bottle to the inflation of glue bucket, makes upper and lower two aquifers isolate mutually;
S2: described downhole data collecting unit gathers temperature, the pressure data in aquifer;
S3: described aboveground data processing and display unit, according to the sample frequency preset or input is arranged, receive temperature, the pressure data in the aquifer that described downhole data collecting unit gathers, and process the data gathered, generate hydrogeological parameter data.
Described hydrogeological parameter data comprise water temperature, waterlevel data, by the method that the pressure data process of collection generates waterlevel data are,
h＝(P
1-P
2)/ρg(1)
Wherein, h represents water level, P
1represent the hydraulic pressure value that described downhole data collecting unit gathers, P
2represent the atmospheric pressure value that described digital pressure sensor gathers, ρ represents the density of water, and g represents acceleration of gravity.
The invention has the advantages that:
1) multiple aquifer can be isolated from each other by the present invention, and measures the hydrogeological parameter in each aquifer respectively, is conducive to independently analyzing and researching to aquifer;
2) the present invention arranges sample frequency by input block, also can arrange sample frequency, makes it, according to certain rule adjustment, can meet the sampling request of pumping test;
3) measurement broad quantum of the present invention, downhole data collecting unit can under under hundred meters even monitor well of km, realize data acquisition, can deepwater work be met;
4) structure of the present invention is comparatively simple, small volume, be convenient to other device assembles on-the-spot with the use of;
5) the present invention can Real-time Collection, display, the dynamic hydrogeological parameter data of storage, and the data gathered, store can be transferred to host computer and are further processed, the requirement of modernization layering water pumping experiment can be met.
Accompanying drawing explanation
Fig. 1 is the composition structured flowchart of data acquisition of the present invention and treating apparatus.
Fig. 2 is the data acquisition of the preferred embodiments of the present invention and the composition structured flowchart for the treatment of apparatus.
Fig. 3 is the data acquisition of another preferred embodiment of the present invention and the composition structured flowchart for the treatment of apparatus.
Fig. 4 is the composition structural representation of aquifer of the present invention packer.
Fig. 5 is the circuit theory diagrams of the signal conditioning circuit of specific embodiments of the invention.
Fig. 6 is the circuit theory diagrams of the clock circuit of specific embodiments of the invention.
Fig. 7 is digital pressure sensor and the peripheral circuit schematic diagram thereof of specific embodiments of the invention.
Fig. 8 is memory and the peripheral circuit schematic diagram thereof of specific embodiments of the invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.
As Fig. 1, shown in 4, multi-aquifer deep hole layering pumping test automatic measurement system disclosed by the invention, comprise for by aquifer packer 1 mutually isolated for multiple aquifer, and for the data acquisition of the hydrogeological parameter of measuring different water cut layer and treating apparatus 2, this data acquisition and treating apparatus 2 comprise and are arranged at aboveground data processing in seal casinghousing and display unit 21 respectively, downhole data collecting unit 22, downhole data collecting unit 22 is electrically connected through communication cable and aboveground data processing and display unit 21, the communication cable of downhole data collecting unit 22 stretches into the aquifer of down-hole through aquifer packer 1, gather the hydrogeological parameter information in aquifer.
As shown in Figure 1, aboveground data processing and display unit 21 comprise primary processor, clock circuit, memory, display screen, digital pressure sensor, clock circuit is connected with the I/O port of primary processor, for providing the clock signal of benchmark for device, memory is connected with the I/O port of primary processor, for the hydrogeological parameter data of storage of collected, display screen is connected with the data output end of primary processor, for the hydrogeological parameter information after Graphics Processing, digital pressure sensor is connected with the data input pin of primary processor, for pressure compensation process, downhole data collecting unit 22 comprises pressure-temperature sensor, signal conditioning circuit, analog to digital conversion circuit, temperature under water, the pressure data of pressure-temperature sensor collection carry out after filtering, amplification process through signal conditioning circuit, be converted to after data signal through analog to digital conversion circuit and be transferred to primary processor, by aboveground data processing and display unit 21, the temperature gathered, pressure data are processed to rear generation hydrogeological parameter data, and carry out showing, storing.
As shown in Figure 2,3, in preferred embodiment, the functional characteristics such as multi-aquifer deep hole layering pumping test automatic measurement system of the present invention has low-power consumption, sample frequency is adjustable, remote transmission, specifically,
System is battery-powered, power supply circuits are divided into the first power circuit and second source circuit, first power circuit is used for powering for primary processor and stable clock signal, second source circuit is connected with battery by an on-off circuit, primary processor is by the break-make of gauge tap circuit, control whether second source circuit is memory, digital pressure sensor, interface circuit is powered, when system does not work or do not put to the sampling time, primary processor disconnects the power supply of second source circuit, system is in the standby mode of low-power consumption, when arriving sampling time point and needing the multidate information gathering aquifer, primary processor connects the power supply of second source circuit, the submarine temperatures that downhole data collecting unit 22 gathers, pressure data is transferred to primary processor.
Clock circuit not only can be the clock signal that system provides benchmark, also there is the clocking capability of sampling, when clock circuit timing does not arrive sampling time point, primary processor cut-off switch circuit, system is in low power consumpting state, when clock circuit timing arrives sampling time point, and primary processor turn on-switch circuit, the submarine temperatures that downhole data collecting unit 22 gathers, pressure data are transferred to primary processor, realize sampling process; Above-mentioned sampling time point, namely sample frequency can preset and adjust according to certain rule, such as, preset sample frequency to change according to the rule of logarithmic function, sample frequency also can be arranged by an input block, and this input block can be the input equipment such as touch display screen, computer.
The I/O port of primary processor is connected with a wireless transport module, realizes the mutual of data by this wireless transport module and host computer, comprises arranging sample frequency, calibrate clock, uploading sampled data etc.
The present invention measures broad quantum, downhole data collecting unit 22 can under under hundred meters even monitor well of km, realize data acquisition, specifically,
As shown in Figure 4, aquifer packer 1 comprises high-pressure nitrogen bottle 10, glue bucket 11, high-pressure nitrogen bottle 10 and glue bucket 11 are sealed by wireway 12 and are communicated with, glue bucket 11 is connected with the pumping line 3 of submersible pump, pumping line 3 is by after glue bucket 11 times to the boundary position in aquifer, down-hole two, inflated by high-pressure nitrogen bottle 10 pairs of glue buckets 11, glue bucket 11 expands and the borehole wall is close to, by the two upper and lower isolation in aquifer;
Glue bucket 11 has the through hole of the communication cable for wearing downhole data collecting unit 22, when there being multiple aquifer, aquifer packer 1 is set between aquifer between two, the communication cable of multiple downhole data collecting unit 22 is each passed through through hole (being tightly connected between the communication cable of downhole data collecting unit and aquifer isolator) corresponding on each aquifer packer 1, ensure that each downhole data collecting unit measures the multidate information (temperature in an aquifer, pressure data), no matter how dark monitor well is, as long as ensure the communication cable long enough of downhole data collecting unit 22, just can realize the measurement of aquifer hydrogeological parameter.
It should be noted that, the down-hole placement location of aquifer packer 1, can judge according to measurement result, adjust.When aquifer packer 1 is not positioned over the boundary position in two aquifers, what gather is two coefficient multidate informations in aquifer to two downhole data collecting units (the upper and lower each downhole data collecting unit of aquifer packer), measurement result is without significant change, and, when aquifer packer 1 is positioned over the boundary position in two aquifers, two downhole data collecting units gather the multidate information in corresponding aquifer respectively, measurement result generation marked change, now, can judge that aquifer packer 1 placement location is correct.
The measuring method utilizing above-mentioned multi-aquifer deep hole layering pumping test automatic measurement system to realize hydrogeological parameter is:
S1: by submersible pump, pumping line 3 with aquifer packer 1, aquifer packer 1 together with the device assembles such as downhole data collecting unit 22, by pumping line 3, aquifer packer 1, downhole data collecting unit are arrived suitable position, down-hole for 22 times, inflated by high-pressure nitrogen bottle 10 pairs of glue buckets 11, make upper and lower two aquifers mutually isolated;
S2: downhole data collecting unit 22 gathers temperature, the pressure data in aquifer;
S3: aboveground data processing and display unit 21 are according to the sample frequency set, and temperature, the pressure data in aquifer that under received well, data acquisition unit 22 gathers, and processing the data gathered, generates hydrogeological parameter data;
These hydrogeological parameter data comprise water temperature, waterlevel data, wherein, are, according to formula (1), force value is converted to water level value by the method that the pressure data process of collection generates waterlevel data,
h＝(P
1-P
2)/ρg(1)
Wherein, h represents water level, P
1represent the hydraulic pressure value that downhole data collecting unit gathers, P
2the atmospheric pressure value that representative digit pressure sensor gathers, (P
1-P
2) be the force value after atmospheric pressure compensating, ρ represents the density of water, and g represents acceleration of gravity.
Sample frequency can change according to the function rule preset, and also can be arranged by input equipment.
S4: the hydrogeological parameter of generation can carry out storing, show, transfer to host computer through wireless transport module is further processed.
As viewed in figures 5-8, in specific embodiment, the MAX267 that signal conditioning circuit selects MAXIM company to produce, MAX4471, MAX9028 cake core builds the filtering realizing analog signal, enlarging function, wherein, filter circuit forms bandpass filter (allowing the signal of 0.8 ~ 38Hz to pass through) by MAX267 chip, the high-frequency noise that flip-flop in filter out signal and power supply bring and Hz noise, then amplification process is carried out through amplifier MAX4471, enter analog to digital conversion circuit (as, AD7484 chip can be selected) carry out analog-to-digital conversion, this signal converts pulse signal to by low power consumption comparator MAX9028 simultaneously, trigger AD7484 chip operation.
Clock circuit can select ISL12022MZ clock chip, for system provides time reference accurately, the alarm clock warning function of intelligence is provided simultaneously, make device ruly execution measurement task, this clock chip has temperature-compensating and daylight-saving time automatic regulating function, in-40 DEG C of-+85 DEG C of temperature range internal sheet, oscillator drift is less than ± 5ppm, and it is configured with the IIC interface of standard, is very easy to carry out exchanges data with primary processor.
Digital pressure sensor adopts the MS5540C type digital pressure sensor based on MEMS technology of Intersema company of Switzerland, MS5540C chip carries out data transmission by SPI interface and primary processor, it needs the crystal oscillator of an outside 32768HZ to provide clock, measurement hydraulic pressure data are deducted barometric information, the impact of air on measurement device result can be eliminated.
The serial interface Flash memory of the M25P80 type that memory uses ST Microelectronics to produce; it has 1M byte (1M*8) memory space; there is advanced protection mechanism; adopt 2.7V-3.6V Power supply; possess SPI standard interface, simple to operate, there is the advantage of power down not obliterated data; the data security that device collects can be stored, be particularly suitable for the environment for use of system.
Interface circuit can adopt six needle interfaces to realize, wherein four pins are used for being connected with the RS485 interface module of downhole data collecting unit, other two pins are used for being connected with the RS232 interface module of computer, and RS485 interface module and RS232 interface module can common land ends.
The MSP430F5438 cake core that primary processor selects TI company to produce, this control chip processing speed is fast, low in energy consumption, Peripheral Interface enriches; Pressure-temperature sensor adopts 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 from rising brokenly or be difficult to reach the effect in packing aquifer, glue bucket 11 adopts fluorine-containing rubber material to make, its coefficient of expansion is good, can effectively and the borehole wall affine, reach sealing effectiveness, the material of glue bucket 11 also can change according to the change of aquifer and water pumping experiment environment.
The seal casinghousing (dotted portion as shown in Figure 2,3) of described encapsulation downhole data collecting unit 22, aboveground data processing and display unit 21, adopts high leakproofness design, can reach 1000 meters of underwater sealing effects.
The above know-why being preferred embodiment of the present invention and using; for a person skilled in the art; when not deviating from the spirit and scope of the present invention; any based on apparent changes such as the equivalent transformation on technical solution of the present invention basis, simple replacements, all belong within scope.
Claims (10)
1. multi-aquifer deep hole layering pumping test automatic measurement system, is characterized in that, comprise
Aquifer packer, for by mutually isolated for multiple aquifer,
Data acquisition and treating apparatus, comprise downhole data collecting unit, aboveground data processing and display unit,
The communication cable of this downhole data collecting unit stretches into the aquifer of down-hole through this aquifer packer, for gathering the multidate information in aquifer,
This aboveground data processing and display unit are for receiving this multidate information and processing to generate hydrogeological parameter data to it.
2. multi-aquifer deep hole layering pumping test automatic measurement system as claimed in claim 1, it is characterized in that, described aquifer packer comprises high-pressure nitrogen bottle, glue bucket, and this high-pressure nitrogen bottle seals with glue bucket and is communicated with, and this glue bucket is connected with a pumping line.
3. multi-aquifer deep hole layering pumping test automatic measurement system as claimed in claim 1, it is characterized in that, described aboveground data processing and display unit comprise primary processor, clock circuit, memory, display screen, digital pressure sensor, this clock circuit, memory are all connected with the I/O port of primary processor, this display screen is connected with the data output end of primary processor, and this digital pressure sensor is connected with the data input pin of primary processor; Described downhole data collecting unit comprises pressure-temperature sensor, signal conditioning circuit, analog to digital conversion circuit, and this pressure-temperature sensor is connected with primary processor through this signal conditioning circuit, analog to digital conversion circuit.
4. multi-aquifer deep hole layering pumping test automatic measurement system as claimed in claim 3, it is characterized in that, the power supply circuits of system comprise the first power circuit and second source circuit, this first power circuit is used for for described primary processor and clock circuit stable power-supplying, this second source circuit is connected with power supply by an on-off circuit, this second source circuit is used for powering for described memory, digital pressure sensor and an interface circuit, and this interface circuit is for being electrically connected described downhole data collecting unit.
5. multi-aquifer deep hole layering pumping test automatic measurement system as claimed in claim 4, it is characterized in that, described clock circuit is used for the timing of sampling time point, when described clock circuit timing does not arrive sampling time point, described primary processor disconnects described on-off circuit, when described clock circuit timing arrives sampling time point, described primary processor turn on-switch circuit.
6. multi-aquifer deep hole layering pumping test automatic measurement system as claimed in claim 3, it is characterized in that, the sample frequency of system is according to the logarithmic function rule change preset, or, described sample frequency is arranged by an input block, and this input block is held with the I/O of described primary processor and is connected.
7. the multi-aquifer deep hole layering pumping test automatic measurement system as described in claim 3 or 4, it is characterized in that, the I/O port of described primary processor is also connected with a wireless transport module.
8. multi-aquifer deep hole layering pumping test automatic measurement system as claimed in claim 2, it is characterized in that, described glue bucket has the through hole of the communication cable for wearing described downhole data collecting unit, described downhole data collecting unit and glue bucket are tightly connected; Described aboveground data processing and display unit, downhole data collecting unit are packaged in seal casinghousing respectively.
9., based on the measuring method that the multi-aquifer deep hole layering pumping test automatic measurement system in claim 1 to 8 described in any one realizes, it is characterized in that, comprise the following steps:
S1: by described pumping line by the boundary position to aquifer, down-hole two under described aquifer packer, downhole data collecting unit, by described high-pressure nitrogen bottle to the inflation of glue bucket, makes upper and lower two aquifers isolate mutually;
S2: described downhole data collecting unit gathers temperature, the pressure data in aquifer;
S3: described aboveground data processing and display unit, according to the sample frequency preset or input is arranged, receive temperature, the pressure data in the aquifer that described downhole data collecting unit gathers, and process the data gathered, generate hydrogeological parameter data.
10. as claimed in claim 9 based on the measuring method that multi-aquifer deep hole layering pumping test automatic measurement system realizes, it is characterized in that, described hydrogeological parameter data comprise water temperature, waterlevel data, by the method that the pressure data process of collection generates waterlevel data are
h＝(P
1-P
2)/ρg(1)
Wherein, h represents water level, P
1represent the hydraulic pressure value that described downhole data collecting unit gathers, P
2represent the atmospheric pressure value that described digital pressure sensor gathers, ρ represents the density of water, and g represents acceleration of gravity.
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| 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 |
| CN117146904A (en) * | 2023-10-27 | 2023-12-01 | 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 |
| 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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