CN105277972A - Microseism data acquisition and transmission method - Google Patents
Microseism data acquisition and transmission method Download PDFInfo
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- CN105277972A CN105277972A CN201510588217.3A CN201510588217A CN105277972A CN 105277972 A CN105277972 A CN 105277972A CN 201510588217 A CN201510588217 A CN 201510588217A CN 105277972 A CN105277972 A CN 105277972A
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Abstract
The invention discloses a microseism data acquisition and transmission method. The microseism data acquisition and transmission method is characterized in that Z / X / Y three analog signals of a three-component geophone are input to a microseism acquisition device, after the three-channel synchronized analog/digital conversion (ADC), the digitalized earthquake data is output via two paths, one path is to completely store three-component data in the local memory of the acquisition device for later fine processing, and the other path is to transmit the extracted simple-component data to a server in a wired or wireless manner for on-site real-time monitoring rapid processing. The method only transmits single-component data during on-site network data transmission, reduces data transmission quantity and bandwidth occupation, and facilitates on-site rapid processing; and meanwhile, complete three-component data is stored and can be used for later fine processing, so that the method has important actual meanings for microseism real-time monitoring.
Description
Technical field
The present invention relates to microseismic field, be specifically related to a kind of microearthquake Data acquisition and transmit method.
Background technology
Micro-seismic monitoring is a kind of effective ways determining fracturing fracture form, and more and more applied in Oil/gas Well waterfrac treatment Crack Monitoring, technical merit is also more and more higher.In data acquisition, from before use simple component wave detector to be converted to use three-component seismometer gradually, in process, be that monitoring terminates rear reprocessing in the past, and needed real-time process now more.
Three-component seismometer is used to gather X, Y, Z tri-direction complete information of seismic wave field, the advanced technology of three-component seismic data process just can be utilized in data handling to process, obtain more result, as carried out Reservoir anisotropy research by shear wave splitting phenomenon, adopting more advanced seismic source location method, carrying out focal mechanism analysis etc.
The data of monitoring are transferred to server by well fracturing micro-seismic monitoring on-the-spot real time handling requirement in real time, process software carries out the process such as event detection, seismic source location fast, scene just provides preliminary monitoring result, for waterfrac treatment construction provides Real-Time Monitoring result, to adjust pressing crack construction scheme in time.Micro-seismic monitoring generally carries out in the wild, for convenience of the deployment of monitoring equipment, generally adopts wireless transmission method, and the number, distributing position etc. of disposing website are subject to the impact of wireless network bandwidth, transmission of wireless signals distance.According to three-component acquisition and three-component network data transmission, the problem that transmitted data amount is large, server process workload is large can be caused, be unfavorable for that scene processes real-time.
Summary of the invention
Object of the present invention is exactly the actual demand for above-mentioned prior art, provides a kind of microearthquake Data acquisition and transmit method.
Its technical scheme is: a kind of microearthquake Data acquisition and transmit method, the workflow of described method is by the X/Y/Z 3-component earthquake signal of three-component seismometer access microearthquake collector, carry out after triple channel analog/digital conversion (ADC) through microearthquake collector, digitized seismic signal data exports through dual path again, one tunnel is saved in the local storage of collector, for late time data fine processing, another road transfers to server, for the fast processing of real time monitoring.
Described X/Y/Z 3-component earthquake signal divides three autonomous channel access collectors, synchronously carries out ADC.
Through one of geological data outgoing route after ADC be: three-component seismic data is saved in the storer such as USB flash disk, SD card of collector this locality, its objective is and carries out later stage fine data process.
Two of geological data outgoing route after ADC is: only extract Z component geological data and transfer to server by wired or wireless mode, its objective is that carrying out scene processes real-time.
Described wireless transmission method is the wireless transmission methods such as WIFI, 3G, 4G.
Beneficial effect of the present invention is: three-component Monitoring Data is saved in local storage, later stage can utilize three component seismic data to carry out meticulousr process, Internet Transmission only transmits simple component data, decrease bandwidth occupancy, be beneficial to and increase website number, only carry out validity event detection and seismic source location by simple component data, decrease the difficulty of fast processing, be conducive to scene and process real-time.
Accompanying drawing explanation
Fig. 1 is workflow diagram of the present invention.
Embodiment
With reference to Fig. 1, a kind of microearthquake Data acquisition and transmit method, the workflow of described method is by the X/Y/Z tri-tunnel simulating signal access microearthquake collector of three-component seismometer, after triple channel synchronously simulating/digital conversion (ADC), digitized geological data exports through dual path again, to be that three component seismic data is complete be saved in the storer of collector this locality on one tunnel, for later stage fine processing, another road the simple component data of extraction is transferred to server by wired or wireless mode, for the Real-Time Monitoring fast processing at scene.The method is only transmission simple component data in network data transmission at the scene, decrease volume of transmitted data and bandwidth occupancy, be conducive to on-the-spot fast processing, save again complete three component seismic data simultaneously, may be used for later stage fine processing, for microearthquake Real-Time Monitoring, there is very important practical significance.
Described X/Y/Z 3-component earthquake signal divides three (bar) autonomous channel to access collector, and be synchronously converted to digital signal through three ADC, the transmission between each component is independent of each other.
One of digitized seismic signal outgoing route of described collector is: three-component seismic data is saved in the local storer such as USB flash disk, SD card of collector, for later stage fine processing with document form.
Two of described collector digitized seismic signal outgoing route is: extract single Z component geological data and uploaded onto the server by wired or wireless mode, process in real time for scene.
Described wireless transmission method is the wireless transmission methods such as WIFI, 3G, 4G.
The method is by the co-ordination of microearthquake collector internal processor, three-component seismic data after ADC can be preserved respectively and transmit: complete three component seismic data is saved in the storer such as USB flash disk, SD card of collector with document form, on the Z component data of extraction are uploaded onto the server by wired or wireless network.Because the geological data of single component is relatively little, under the condition that bandwidth is certain, can 3 times of transmission speeds to three component seismic data transmit, the microearthquake data of more multi-site can be transmitted, be conducive to on-the-spot real-time Transmission and fast processing, to instruct hydraulic fracturing job according to the result of monitoring.Because complete three-component seismic data is stored in USB flash disk or SD card, so the later stage can according to complete shear wave, P wave data, the method for employing advanced person carries out location and the explanation of focus, obtains more high-precision positioning result and abundanter result.
The present invention had both ensured gather and save 3-component earthquake wave datum, for later stage fine processing, only extract again Z component and be used for on-the-spot real-time Transmission and process, improve single site message transmission rate, improve network transmission bandwidth utilization factor, be beneficial to on-the-spot fast processing, significant with process to Oil/gas Well waterfrac treatment Real-Time Monitoring.
Claims (5)
1. a microearthquake Data acquisition and transmit method, it is characterized in that: the workflow of described method is by the X/Y/Z 3-component earthquake signal of three-component seismometer access microearthquake collector, carry out after triple channel analog/digital conversion (ADC) through microearthquake collector, digitized seismic signal data exports through dual path again, one tunnel is saved in the local storage of collector, for late time data fine processing, another road transfers to server, for the fast processing of real time monitoring.
2. a kind of microearthquake Data acquisition and transmit method according to claim 1, is characterized in that: described X/Y/Z 3-component earthquake signal divides three autonomous channel access collectors, synchronously carries out ADC.
3. a kind of microearthquake Data acquisition and transmit method according to claim 1, it is characterized in that: through one of geological data outgoing route after ADC be: three-component seismic data is saved in the storer such as USB flash disk, SD card of collector this locality, its objective is and carries out later stage fine data process.
4. a kind of microearthquake Data acquisition and transmit method according to claim 1, it is characterized in that: two of the geological data outgoing route after ADC is: only extract Z component geological data and transfer to server by wired or wireless mode, its objective is that carrying out scene processes real-time.
5. a kind of microearthquake sample and transform method according to claim 4, is characterized in that: described wireless transmission method is the wireless transmission methods such as WIFI, 3G, 4G.
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| CN201510588217.3A CN105277972A (en) | 2015-09-16 | 2015-09-16 | Microseism data acquisition and transmission method |
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Cited By (5)
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| CN106501850A (en) * | 2016-11-11 | 2017-03-15 | 珠海国勘仪器有限公司 | A kind of single-channel seismic signal pickup assembly and seismic signal acquiring system |
| CN106918837A (en) * | 2017-03-10 | 2017-07-04 | 中国矿业大学(北京) | A kind of distributed deep hole signal pickup assembly |
| CN110891076A (en) * | 2018-09-07 | 2020-03-17 | 中国石油化工股份有限公司 | Real-time transmission method and system for microseism monitoring data |
| CN110941016A (en) * | 2018-09-21 | 2020-03-31 | 中国石油化工股份有限公司 | Real-time transmission distributed shallow well microseism monitoring data acquisition system and method |
| WO2021128857A1 (en) * | 2019-12-24 | 2021-07-01 | 中国科学院地质与地球物理研究所 | Seismic data real-time acquisition device, system and method |
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| CN110941016A (en) * | 2018-09-21 | 2020-03-31 | 中国石油化工股份有限公司 | Real-time transmission distributed shallow well microseism monitoring data acquisition system and method |
| WO2021128857A1 (en) * | 2019-12-24 | 2021-07-01 | 中国科学院地质与地球物理研究所 | Seismic data real-time acquisition device, system and method |
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Application publication date: 20160127 |