CN107829730B - Inter-well acoustic logging system - Google Patents
Inter-well acoustic logging system Download PDFInfo
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- CN107829730B CN107829730B CN201711017879.0A CN201711017879A CN107829730B CN 107829730 B CN107829730 B CN 107829730B CN 201711017879 A CN201711017879 A CN 201711017879A CN 107829730 B CN107829730 B CN 107829730B
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- 230000006854 communication Effects 0.000 claims abstract description 42
- 238000004891 communication Methods 0.000 claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims description 19
- 230000005404 monopole Effects 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 4
- 238000012937 correction Methods 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract description 11
- 230000001360 synchronised effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000012545 processing Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000007175 bidirectional communication Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The invention belongs to the field of ore field geophysics, and particularly relates to an inter-well acoustic logging system which can finish inter-well acoustic measurement work of adjacent open-hole wells, realize measurement and description of stratum acoustic characteristics between two or more adjacent wells and further provide assistance for reflecting physical characteristics of inter-well reservoirs, determining heterogeneity and communicating and trend of the reservoirs. An interwell acoustic logging system comprises an interwell acoustic transmitting device, an interwell acoustic receiving device and an interwell synchronizing device; the inter-well sound wave transmitting device consists of a ground transmitting station and a series-connected downhole transmitting instrument set; the series underground transmitting instrument group comprises a transmitting communication line, a transmitting line and a transmitting acoustic system; the inter-well sound wave receiving device consists of a ground receiving station and a series-connected underground receiving instrument set; the serial underground receiving instrument group comprises a receiving communication line, a receiving line and a receiving acoustic system; the well synchronization device comprises a ground synchronization module and a downhole synchronization module.
Description
Technical Field
The invention belongs to the technical field of ore field geophysics, and particularly relates to an inter-well acoustic logging system.
Background
As an application technology necessary in the fields of oil exploration and oil and gas exploitation, acoustic logging uses propagation time differences of acoustic waves in a rock layer to estimate conditions of a drilling section, such as rock porosity, gas layer, lithology and other characteristics, so that acoustic logging is one of the most commonly used methods for logging geophysical prospecting. The existing single-well acoustic logging instrument is usually arranged in a well, signals such as reflected waves, direct waves and the like are often mixed together in the use process, so that the reflected waves are difficult to extract and obtain in a limited mode, and the detection range is limited, so that the measurement range can only reach a region of tens of meters.
Disclosure of Invention
The invention provides an inter-well acoustic logging system which can finish inter-well acoustic measurement work of adjacent open-hole wells, realize measurement and description of stratum acoustic characteristics between two or more adjacent wells, and further provide assistance for reflecting physical characteristics of inter-well reservoirs, determining heterogeneity and communication and trend of the reservoirs.
In order to solve the technical problems, the invention adopts the following technical scheme:
an inter-well acoustic logging system comprising:
an inter-well sound wave transmitting device, an inter-well sound wave receiving device and an inter-well synchronizing device;
the inter-well sound wave transmitting device consists of a ground transmitting station and a series-connected underground transmitting instrument set; the ground emission station comprises a first winch power system, a ground emission acquisition host, a first wireless communication module and a first transmission cable; the series underground transmitting instrument set comprises a transmitting communication line, a transmitting line and a transmitting acoustic system which are sequentially connected; the transmitting communication line of the series underground transmitting instrument group is connected with the ground transmitting acquisition host through a first transmission cable;
the inter-well sound wave receiving device consists of a ground receiving station and a series-connected underground receiving instrument set; the ground receiving station comprises a second winch power system, a ground receiving and collecting host, a second wireless communication module and a second transmission cable; the serial underground receiving instrument group comprises a receiving communication line, a receiving line and a receiving acoustic system which are sequentially connected; the receiving communication line of the series underground receiving instrument group is connected with the ground receiving acquisition host through a second transmission cable;
the inter-well synchronization device comprises a ground synchronization module and an underground synchronization module, wherein the ground synchronization module receives a clock signal from a navigation satellite, and the clock signal is transmitted to the underground synchronization module after frequency division, correction, amplification and driving processing, and is recovered and corrected by the underground synchronization module to generate an underground reference synchronization clock signal.
Preferably, the transmitting line in the series underground transmitting instrument group is composed of an underground transmitting line communication interface, a transmitting control unit and a driving line; the receiving line in the series-connected underground receiving instrument group is composed of an underground receiving line communication interface and a receiving and collecting line.
Preferably, the transmitting sound system in the series underground transmitting instrument group is composed of a plurality of transmitting transducers, and the transmitting frequency range of the transmitting transducers is 10Hz-10kHz.
Further preferably, the transmitting transducer is any one of a dipole transmitting transducer, a monopole transmitting transducer and a quadrupole transmitting transducer.
Preferably, the receiving sound system in the serial underground receiving instrument group consists of a leaning device, a three-component receiving transducer and an accelerometer, and the receiving frequency range of the receiving sound system is 0-30kHz.
Further preferably, 4-8 extension arms are arranged on the sidewall contact device, and the three-component receiving transducer is arranged on the extension arms of the sidewall contact device.
Alternatively, the power supplies of the transmitting line and the receiving line are both direct current output power supplies.
The invention provides an interwell acoustic logging system, which comprises an interwell acoustic transmitting device, an interwell acoustic receiving device and an interwell synchronizing device, wherein the interwell acoustic transmitting device is connected with the interwell acoustic receiving device; the inter-well sound wave transmitting device is composed of a ground transmitting station and a series-connection underground transmitting instrument set, the inter-well sound wave receiving device is composed of a ground receiving station and a series-connection underground receiving instrument set, and the inter-well synchronizing device comprises a ground synchronizing module and an underground synchronizing module. The inter-well acoustic logging system with the structure can finish inter-well acoustic measurement work of the open hole well spacing not less than 1500 m and the metal casing well spacing not less than 500 m, and the temperature resistance of the downhole instrument can reach 175 ℃ and the pressure resistance can reach 140Mpa. By measuring and describing the stratum acoustic characteristics between two or more adjacent wells, the functions of reflecting the physical characteristics of reservoirs among the wells, determining the heterogeneity, communicating and moving the reservoirs and the like can be realized.
Drawings
FIG. 1 is a schematic diagram of an acoustic logging system for use between wells according to the present invention.
Detailed Description
The invention provides an inter-well acoustic logging system which can finish inter-well acoustic measurement work of adjacent open-hole wells, realize measurement and description of stratum acoustic characteristics between two or more adjacent wells, and further provide assistance for reflecting physical characteristics of inter-well reservoirs, determining heterogeneity and communication and trend of the reservoirs.
The invention provides an interwell acoustic logging system, which is shown in fig. 1 and comprises an interwell acoustic transmitting device 1, an interwell acoustic receiving device 2 and an interwell synchronizing device 3. The inter-well sound wave transmitting device 1 is composed of a ground transmitting station 11 and a series-connection downhole transmitting instrument set 12. The ground emission station 11 further comprises a first winch power system, a ground emission acquisition host, a first wireless communication module and a first transmission cable; the serial downhole transmitting instrument set 12 includes a transmitting communication line 121, a transmitting line 122 and a transmitting sound system 123, which are sequentially connected, and the transmitting communication line of the serial downhole transmitting instrument set is connected with the ground transmitting acquisition host through a first transmission cable. Specifically, the series underground transmitting instrument group is arranged in one of the adjacent open-hole wells and is responsible for transmitting logging acoustic signals according to the transmitting instruction of the ground transmitting station. As a preferable implementation mode of the invention, the transmitting line in the series-connected underground transmitting instrument group is preferably composed of an underground transmitting line communication interface, a transmitting control unit and a driving line; the transmitting sound system in the series underground transmitting instrument group consists of a plurality of transmitting transducers, and the transmitting frequency range of the transmitting transducers is 10Hz-10kHz. The working process can be described as follows: the transmitting line is controlled by the ground transmitting station to generate an acoustic wave transmitting logic signal, and the acoustic wave transmitting logic signal is amplified and driven and then sent to the transmitting sound system. It is noted that the transmitting transducer is selected from any one of a dipole transmitting transducer, a monopole transmitting transducer and a quadrupole transmitting transducer, so that dipole, monopole or quadrupole acoustic signals can be correspondingly emitted.
While the interwell sonic receiving means 2 is constituted by a surface receiving station 21 and a series of downhole receiving toolsets 22. The ground receiving station 21 further comprises a second winch power system, a ground receiving and collecting host, a second wireless communication module and a second transmission cable; the serial downhole receiving instrument set 22 comprises a receiving communication line 221, a receiving line 222 and a receiving sound system 223 which are sequentially connected; the receiving communication line of the series underground receiving instrument group is connected with the ground receiving acquisition host through a second transmission cable. Specifically, the serial underground receiving instrument group is arranged in the other well of the two adjacent open holes and is responsible for receiving the logging sound wave signals according to the receiving instruction of the ground receiving station. As a preferable implementation mode of the invention, the receiving circuit in the series-connected underground receiving instrument group consists of an underground receiving circuit communication interface and a receiving and collecting circuit; the receiving sound system in the serial underground receiving instrument group consists of a leaning device, a three-component receiving transducer and an accelerometer, and the receiving frequency range of the receiving sound system is 0-30kHz. The working process can be described as follows: the receiving line receives the control of the ground receiving station, and processes the signals from the three-component receiving transducer and the accelerometer in the receiving sound system such as acquisition, program-controlled amplification, analog filtering, digitalization, superposition, digital filtering and the like. And more preferably, the three-component receiving transducer is arranged on an extension arm of the sidewall contact device, the three-component receiving transducer is pushed to the well wall through the sidewall contact device, and 4-8 extension arms can be arranged on the sidewall contact device according to actual needs.
As shown in fig. 1, the inter-well synchronization device further comprises two parts, namely a ground synchronization module and a downhole synchronization module; the ground synchronization module is used for receiving clock signals from the navigation satellite, and transmitting corresponding signals to the underground synchronization module after processing through the steps of frequency division, correction, amplification, driving and the like; and the underground synchronous module generates an underground reference synchronous clock signal after the steps of recovery, correction and the like. The underground reference synchronous clock signal is used for providing synchronous clock signals for transmitting, receiving and other operations for an underground transmitting instrument set connected in series of the inter-well sound wave transmitting device and an underground receiving instrument set connected in series of the inter-well sound wave receiving device respectively.
In addition, as a preferable embodiment of the present invention, the power supply sources of the transmission line in the inter-well sound wave transmitting device and the receiving line in the inter-well sound wave receiving device are both direct current output power sources. On one hand, the direct current output power supply is used for supplying power to the underground transmission line communication interface, the transmission control unit, the driving line and other structural units; the transmitting line 122 receives the control of the ground transmitting station 11, generates the sound wave transmitting logic, amplifies and drives the sound wave transmitting logic, sends the sound wave signal to the transmitting sound system 123, drives the transmitting transducer to transmit the sound wave signal, and simultaneously sends the transmitting monitoring information to the transmitting communication line 121. The direct-current output power supply supplies power to the underground receiving circuit communication interface, the receiving acquisition circuit and other structural units; the receive line 222 receives control from the ground station 21, collects, amplifies, analog filters, digitizes, superimposes, digitally filters, etc. signals from the three-component receive transducer and accelerometer in the receive acoustic 223, and passes the data to the receive communication line 221.
In addition, the transmitting communication line 121 and the receiving communication line 221 also have the function of bi-directional communication transmission. For example: the transmitting communication line 121 decodes the ground command from the ground transmitting station 11 and transmits the decoded ground command to the transmitting line 122, and transmits the sound wave signal and control information of the transmitting line 122 back to the ground transmitting station 11 for recording, storing, processing and other functions; similarly, the receiving communication line 221 decodes the ground command from the ground receiving station 21, transmits the decoded ground command to the receiving line 222, and transmits the sound wave signal and control information of the receiving line 222 back to the ground receiving station 21 for recording, storing, processing, and other functions.
Up to this point, the embodiments of the acoustic logging system between wells provided by the present invention are summarized as follows: placing the series-connected underground transmitting instrument set in one well, and placing one or more series-connected underground receiving instrument sets in another well or wells; the ground transmitting station transmits data to the serial underground transmitting instrument group through a first transmission cable, and the ground receiving station transmits data to the serial underground receiving instrument group through a second transmission cable; the inter-well synchronization device provides time synchronization signals for the inter-well sound wave transmitting device and the inter-well sound wave receiving device respectively, and reference sources of the time synchronization signals are all time signals from the navigation satellite; communication and data transmission can be carried out between the ground transmitting station and the ground receiving station through a radio communication module; after the series-connected underground transmitting instrument set and the series-connected underground receiving instrument set are respectively lowered into a target stratum, a ground receiving station issues leg commands to the series-connected underground receiving instrument set, so that a receiving sound system supports a leaning arm to enable a receiving transducer to be close to a well wall, regular transmitting sound wave signals sent by the series-connected underground transmitting instrument set are collected, the series-connected underground receiving instrument set regularly receives the sound wave signals, and measurement of a depth point is completed; after the process is finished, the series-connected underground transmitting instrument set and the series-connected underground receiving instrument set are slowly and continuously lifted up until the measurement and collection of all well section depth points are finished.
The sound wave signal transmitted by the series-connected underground transmitting instrument group is controlled by the instruction issued by the ground transmitting station and the synchronous signal issued by the inter-well synchronous device, and after the series-connected underground transmitting instrument group receives the control signal, the series-connected underground transmitting instrument group starts to transmit and transmit the acquisition of the monitoring signal, and the process is as follows: the transmitting line generates sound wave transmitting logic, amplifies and drives the sound wave transmitting logic and then sends the sound wave transmitting logic to the transmitting sound system, the transmitting transducer is driven to transmit monopole, dipole and quadrupole sound wave signals in a time-sharing mode, the transmitting line transmits transmitting monitoring information to the transmitting communication line, the transmitting communication line returns the transmitting monitoring information to the ground transmitting station, and the ground transmitting acquisition host is used for recording, storing and processing.
The sound wave signals received by the series underground receiving instrument group are controlled by the instructions issued by the ground receiving stations and the synchronous signals issued by the inter-well synchronous devices, the sound wave signals are collected under the control of the underground synchronous signals while the series underground transmitting instrument group transmits, then the sound wave signals are transmitted to the receiving communication line, and the receiving communication line drives the sound wave signals to be uploaded to the ground receiving stations, and the ground receiving collection host computer records, stores and processes the sound wave signals.
The invention provides an interwell acoustic logging system, which comprises an interwell acoustic transmitting device, an interwell acoustic receiving device and an interwell synchronizing device, wherein the interwell acoustic transmitting device is connected with the interwell acoustic receiving device; the inter-well sound wave transmitting device is composed of a ground transmitting station and a series-connection underground transmitting instrument set, the inter-well sound wave receiving device is composed of a ground receiving station and a series-connection underground receiving instrument set, and the inter-well synchronizing device comprises a ground synchronizing module and an underground synchronizing module. The inter-well acoustic logging system with the structure can finish inter-well acoustic measurement work of the open hole well spacing not less than 1500 m and the metal casing well spacing not less than 500 m, and the temperature resistance of the downhole instrument can reach 175 ℃ and the pressure resistance can reach 140Mpa. By measuring and describing the stratum acoustic characteristics between two or more adjacent wells, the functions of reflecting the physical characteristics of reservoirs among the wells, determining the heterogeneity, communicating and moving the reservoirs and the like can be realized.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (5)
1. An inter-well sonic logging system, comprising:
an inter-well sound wave transmitting device, an inter-well sound wave receiving device and an inter-well synchronizing device;
the inter-well sound wave transmitting device consists of a ground transmitting station and a series-connected underground transmitting instrument set; the ground emission station comprises a first winch power system, a ground emission acquisition host, a first wireless communication module and a first transmission cable; the series underground transmitting instrument group comprises a transmitting communication line, a transmitting line and a transmitting acoustic system which are sequentially connected; the transmitting communication line of the serially connected underground transmitting instrument group is connected with the ground transmitting acquisition host through a first transmission cable;
the inter-well sound wave receiving device consists of a ground receiving station and a series-connected underground receiving instrument set; the ground receiving station comprises a second winch power system, a ground receiving and collecting host, a second wireless communication module and a second transmission cable; the series underground receiving instrument group comprises a receiving communication line, a receiving line and a receiving acoustic system which are sequentially connected; the receiving communication line of the serial underground receiving instrument group is connected with the ground receiving acquisition host through a second transmission cable;
the inter-well synchronization device comprises a ground synchronization module and an underground synchronization module, wherein the ground synchronization module receives a clock signal from a navigation satellite, and transmits the clock signal to the underground synchronization module after frequency division, correction, amplification and driving treatment, and the underground synchronization module recovers and corrects the clock signal to generate an underground reference synchronization clock signal;
the transmitting line in the series-connected underground transmitting instrument group is composed of an underground transmitting line communication interface, a transmitting control unit and a driving line; the receiving circuit in the serial underground receiver set consists of an underground receiving circuit communication interface and a receiving and collecting circuit;
the receiving sound system in the serial underground receiving instrument group consists of a leaning device, a three-component receiving transducer and an accelerometer, and the receiving frequency range of the receiving sound system is 0-30kHz.
2. An inter-well acoustic logging system according to claim 1 wherein the transmitting acoustic system in the series of downhole transmitting instrument sets is comprised of a plurality of transmitting transducers having a transmitting frequency in the range of 10Hz to 10kHz.
3. An interwell acoustic logging system according to claim 2, wherein the transmitting transducer is any one of a dipole transmitting transducer, a monopole transmitting transducer, a quadrupole transmitting transducer.
4. A sonic logging system according to claim 3, wherein 4-8 extension arms are provided on the sidewall contact device, and the three-component receiving transducer is mounted on the extension arms of the sidewall contact device.
5. The acoustic logging system of claim 4 wherein the power supplies for both the transmit line and the receive line are dc output power supplies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711017879.0A CN107829730B (en) | 2017-10-26 | 2017-10-26 | Inter-well acoustic logging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711017879.0A CN107829730B (en) | 2017-10-26 | 2017-10-26 | Inter-well acoustic logging system |
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| CN107829730A CN107829730A (en) | 2018-03-23 |
| CN107829730B true CN107829730B (en) | 2024-03-08 |
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| CN117738654A (en) * | 2022-09-14 | 2024-03-22 | 中国石油化工股份有限公司 | Interwell logging communication system |
Citations (5)
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| CN1924604A (en) * | 2006-08-30 | 2007-03-07 | 合肥伟图信息技术有限公司 | Underground operators ultrasonic location system and method thereof |
| CN101042437A (en) * | 2006-11-30 | 2007-09-26 | 中国石油天然气集团公司 | Seismic prospecting method between azimuth borehole |
| CN103235335A (en) * | 2013-04-18 | 2013-08-07 | 西北工业大学 | Intense sound pulse logging system |
| CN105986810A (en) * | 2015-01-30 | 2016-10-05 | 中石化石油工程技术服务有限公司 | Dipole transverse wave far detecting instrument |
| CN207485431U (en) * | 2017-10-26 | 2018-06-12 | 中石化石油工程技术服务有限公司 | A kind of cross-hole acoustic logging system |
-
2017
- 2017-10-26 CN CN201711017879.0A patent/CN107829730B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924604A (en) * | 2006-08-30 | 2007-03-07 | 合肥伟图信息技术有限公司 | Underground operators ultrasonic location system and method thereof |
| CN101042437A (en) * | 2006-11-30 | 2007-09-26 | 中国石油天然气集团公司 | Seismic prospecting method between azimuth borehole |
| CN103235335A (en) * | 2013-04-18 | 2013-08-07 | 西北工业大学 | Intense sound pulse logging system |
| CN105986810A (en) * | 2015-01-30 | 2016-10-05 | 中石化石油工程技术服务有限公司 | Dipole transverse wave far detecting instrument |
| CN207485431U (en) * | 2017-10-26 | 2018-06-12 | 中石化石油工程技术服务有限公司 | A kind of cross-hole acoustic logging system |
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| CN107829730A (en) | 2018-03-23 |
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Effective date of registration: 20220214 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Applicant after: SINOPEC Group Applicant after: SINOPEC OILFIELD SERVICE Corp. Applicant after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant after: Sinopec Jingwei Co.,Ltd. Applicant after: Shengli logging company of Sinopec Jingwei Co.,Ltd. Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Applicant before: SINOPEC OILFIELD SERVICE Corp. Applicant before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Applicant before: WELL LOGGING COMPANY, SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |
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Inventor after: Chao Yongsheng Inventor after: Zang Defu Inventor after: Guo Hongqi Inventor after: Ji Zhuhua Inventor after: Xu Xiaokai Inventor after: Li Minggang Inventor after: Wei Jun Inventor after: Liu Zeng Inventor before: Chao Yongsheng Inventor before: Zang Defu Inventor before: Guo Hongqi Inventor before: Ji Zhuhua Inventor before: Xu Xiaokai Inventor before: Li Minggang Inventor before: Wei Jun Inventor before: Liu Zeng |
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