CN211648136U - Multipole array acoustic logging instrument - Google Patents
Multipole array acoustic logging instrument Download PDFInfo
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- CN211648136U CN211648136U CN202020020570.8U CN202020020570U CN211648136U CN 211648136 U CN211648136 U CN 211648136U CN 202020020570 U CN202020020570 U CN 202020020570U CN 211648136 U CN211648136 U CN 211648136U
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- 230000005405 multipole Effects 0.000 title claims abstract description 23
- 230000005284 excitation Effects 0.000 claims abstract description 12
- 239000002847 sound insulator Substances 0.000 claims abstract description 12
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 23
- 238000012545 processing Methods 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 230000005404 monopole Effects 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 abstract description 10
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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Abstract
The utility model discloses a multipole array acoustic logging instrument, which comprises a universal electronic short section (1), a receiving circuit short section (2), a receiving acoustic system short section (3), a sound insulator short section (4), a transmitting acoustic system short section (5) and a transmitting circuit short section (6) which are connected in sequence; the receiving line short section (2) comprises a signal receiving and amplifying circuit, and the signal receiving and amplifying circuit is connected with the universal electronic short section (1) and the receiving sound system short section (3); the transmitting line short section (6) comprises a voltage stabilizing circuit and an excitation circuit which are connected with each other, and the excitation circuit is connected with the transmitting acoustic system short section (5). The utility model provides a multipole array acoustic logging instrument has optimized the winding displacement overall arrangement through the circuit of simplifying each nipple joint, has improved the SNR of instrument, has strengthened the interference killing feature of instrument.
Description
Technical Field
The utility model belongs to the technical field of oil exploration, logging, concretely relates to multipole array sound wave logging instrument.
Background
With the development of science and technology, the traditional oil exploration technology cannot meet the production requirements of modern fossil oil enterprises, and in order to better adapt to the application and development of the logging technology in modern oil exploration, the acoustic logging technology based on the acoustic characteristics of media such as rocks is brought to people for research. The acoustic logging is a logging method for researching a geological profile of a drilled well and judging the well cementation quality by utilizing different acoustic characteristics such as speed, amplitude, frequency change and the like when acoustic waves propagate in different rocks.
Conventional sonic logging, such as sonic logging and amplitude logging, only records the travel time of the first wave of the gliding longitudinal wave and the amplitude of the first wave, and uses very little information about the sonic wave in the borehole. With the research of the propagation theory of sound waves in open holes, people know that the wave train excited by the emission probe in a well hole carries a lot of formation information, if the whole wave train of the sound waves is recorded, the wave form information such as longitudinal waves, transverse waves, Stoneley waves and the like can be obtained through digital signal processing, and the research on the aspects of formation elastic characteristics, fracture pressure, formation permeability, cracks, oil and gas identification and the like is developed, so that the application of sound wave logging in oil exploration is favorably expanded, and therefore, a multipole array sound wave logging instrument is developed.
However, the existing acoustic logging instrument has a relatively complex circuit and is easily interfered by a complex underground environment; meanwhile, the processing speed is low due to the fact that more data need to be processed.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that exists among the prior art, the utility model provides a multipole array acoustic logging instrument. The to-be-solved technical problem of the utility model is realized through following technical scheme:
a multi-pole array acoustic logging instrument comprises a universal electronic short section, a receiving line short section, a receiving acoustic system short section, a sound insulator short section, a transmitting acoustic system short section and a transmitting line short section which are connected in sequence; wherein,
the receiving line short section comprises a signal receiving and amplifying circuit, and the signal receiving and amplifying circuit is connected with the universal electronic short section and the receiving sound system short section;
the transmitting line short section comprises a voltage stabilizing circuit and an excitation circuit which are connected with each other, and the excitation circuit is connected with the transmitting acoustic system short section.
In an embodiment of the present invention, the universal electronic sub comprises: a power supply conversion circuit, a signal acquisition processing circuit and a control communication circuit, wherein,
the power supply conversion circuit is respectively connected with the signal acquisition processing circuit and the control communication circuit;
the signal acquisition processing circuit is connected with the control communication circuit and is connected with the signal receiving and amplifying circuit.
In an embodiment of the present invention, the output voltage of the power conversion circuit is +15V, -15V and + 5V.
In an embodiment of the present invention, the signal acquisition processing circuit is provided with a plurality of DSP chips.
In an embodiment of the present invention, the signal acquisition and processing circuit is provided with 8 DSP chips.
In an embodiment of the present invention, the receiving acoustic system short section includes a plurality of receiving components, each of which is connected to the signal receiving amplifying circuit, the control communication circuit and the power conversion circuit.
In one embodiment of the present invention, the receive acoustic sub comprises eight orthogonal dipole receive assemblies.
In an embodiment of the present invention, the sound insulator short section includes a sound insulator connecting block and a sound insulator connecting body connected to each other.
In an embodiment of the present invention, the transmitting acoustic system short section comprises a plurality of transmitting assemblies, each transmitting assembly is connected to the exciting circuit, the control communication circuit and the power conversion circuit.
In an embodiment of the present invention, the transmitting acoustic system short section includes four transmitting assemblies, and the four transmitting assemblies are a quadrupole transmitting assembly, a first dipole transmitting assembly, a second dipole transmitting assembly and a monopole transmitting assembly respectively.
The utility model has the advantages that:
1. the utility model provides a multipole array acoustic logging instrument has optimized the winding displacement overall arrangement through simplifying the circuit of each nipple joint, has improved the SNR of instrument for the interference killing feature of instrument is promoted;
2. the utility model provides a multipole array acoustic logging instrument is through adopting multichannel DSP parallel processing data, has improved the data processing speed of logging instrument.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of a multipole array acoustic logging tool according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another multi-polar subarray sonic logging tool provided by an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the present invention is not limited thereto.
Example one
Referring to fig. 1, fig. 1 is a schematic structural diagram of a multipole array acoustic logging instrument provided in an embodiment of the present invention, which includes a universal electronic short section 1, a receiving line short section 2, a receiving acoustic short section 3, a sound insulator short section 4, a transmitting acoustic short section 5, and a transmitting line short section 6, which are connected in sequence; wherein,
the receiving line short section 2 comprises a signal receiving and amplifying circuit, and the signal receiving and amplifying circuit is connected with the universal electronic short section 1 and the receiving sound system short section 3;
the transmitting line short section 6 comprises a voltage stabilizing circuit and an excitation circuit which are connected with each other, and the excitation circuit is connected with the transmitting acoustic system short section 5.
In this embodiment, the universal electronic short section 1, the receiving line short section 2, the receiving acoustic short section 3, the sound insulator short section 4, the transmitting acoustic short section 5 and the transmitting line short section 6 are all arranged on the measuring framework. The voltage-stabilizing voltage in the transmitting short section is used for supplying power to the whole instrument, and the exciting circuit excites the transmitting acoustic system short section to send out an acoustic wave signal; the receiving acoustic system short section is mainly used for receiving bulk waves (namely longitudinal waves and transverse waves) and interface waves (pseudo-Rayleigh waves and Stoneley waves) which are caused by the vibration of surrounding mass points of acoustic signals sent by the transmitting acoustic system short section; the sound insulator short section is mainly used for preventing sound waves emitted by the transmitting sound system short section from being directly transmitted to the receiving sound system short section from the instrument; the signal receiving and amplifying circuit in the receiving line nipple amplifies the uploaded sound wave signals, the universal electronic nipple 1 collects, filters, isolates and performs analog-to-digital conversion on the amplified sound wave signals, the sound wave signals are converted into digital signals, and finally the converted data are transmitted to the remote transmission nipple through an internal bus.
Further, the universal electronic short 1 comprises: the power supply conversion circuit is respectively connected with the signal acquisition processing circuit and the control communication circuit;
the signal acquisition processing circuit is connected with the control communication circuit and is connected with the signal receiving and amplifying circuit.
The control communication circuit sends an instruction to the signal acquisition and processing circuit, the signal acquisition and processing circuit acquires and processes an output signal of the signal receiving and amplifying circuit, and the output signal is uploaded to the remote transmission short section through the control communication circuit.
Specifically, because the power conversion circuit needs to supply power to different modules of the whole instrument, and different modules are provided with different chips and need different voltages, in this embodiment, the power conversion circuit converts the voltage of the bus 180V, and then outputs three voltages of +15V, -15V and +5V at the same time to supply power to the whole system.
The signal acquisition processing circuit is used for carrying out analog-to-digital conversion on the analog signal,
further, the present embodiment employs a plurality of DSP chips to process data in parallel, so as to increase the speed of data processing.
The control communication circuit is used for controlling the signal acquisition circuit to acquire and process the sound wave signals and simultaneously controlling the flow of the whole system and the communication between the logging instrument and the remote transmission short section.
Further, the receiving acoustic system short section 3 comprises a plurality of receiving components, and each receiving component is connected with the signal receiving and amplifying circuit, the control communication circuit and the power supply conversion circuit.
In this embodiment, the sound insulator short section 4 includes a sound insulator connecting block and a sound insulator connecting body which are connected to each other.
Further, the transmitting acoustic system short section 5 comprises a plurality of transmitting assemblies, and each transmitting assembly is connected with the excitation circuit, the control communication circuit and the power supply conversion circuit.
In this embodiment, the control communication circuit controls the plurality of transmitting assemblies to sequentially and cyclically transmit the acoustic wave signals according to a specific time sequence, and the plurality of receiving assemblies simultaneously receive the acoustic wave signals, so that the data volume is very large.
The multipolar sub-array acoustic logging instrument that this embodiment provided adopts direct reading logging mode, acoustic excitation is accomplished to transmission circuit nipple joint, the selection of whole instrument transmission mode of control communication circuit control in the general electron nipple joint and receiving mode, and the various parameter selection of control data acquisition, acoustic signal reception is accomplished to receiving circuit nipple joint and is enlargied, general electron nipple joint is handled acoustic signal and is uploaded to the teletransmission nipple joint, wherein, the circuit of each module is all fairly simple, when realizing the logging instrument function, the circuit has been simplified, be favorable to optimizing system circuit layout, the SNR and the interference killing feature of logging instrument have been improved.
Example two
On the basis of the first embodiment, the present embodiment provides another schematic structural diagram of a multipole subarray acoustic logging tool; referring to fig. 2, fig. 2 is a schematic structural diagram of another multi-polar sub-array acoustic logging tool according to an embodiment of the present invention;
specifically, in the multi-pole sub-array acoustic logging instrument provided in this embodiment, the transmitting acoustic short section 5 includes four transmitting assemblies, which are a quadrupole transmitting assembly, a first dipole transmitting assembly, a second dipole transmitting assembly, and a monopole transmitting assembly, respectively, and are all connected to the excitation circuit and the control communication circuit; the receiving acoustic system short section 3 comprises eight orthogonal dipole receiving assemblies which are arranged in parallel in the receiving acoustic system short section and are connected with the signal receiving and amplifying circuit and the control communication circuit; correspondingly, eight DSP chips are adopted in the signal acquisition and processing circuit and correspond to the eight orthogonal dipole receiving assemblies.
Furthermore, the quadrupole transmitting assembly is composed of four sound sources with opposite adjacent vibration phases, the dipole transmitting assembly is composed of two sound sources with the same vibration phases, under the control instruction of the control communication circuit, the four transmitting assemblies sequentially and circularly transmit sound wave signals according to a specific time sequence, meanwhile, the eight orthogonal dipole receiving assemblies simultaneously receive the sound wave signals, and the eight DSP chips respectively process a group of data so as to improve the data processing speed.
In this embodiment, the multi-pole subarray acoustic logging instrument is a four-transmitting eight-receiving digital acoustic logging instrument, full-wave acoustic logging can be achieved through the multi-pole subarray acoustic logging instrument, the circuit structure of each module is simple, accordingly, the flat cable among the circuit modules is reasonable in layout, the instrument has a high signal-to-noise ratio, the anti-interference capacity of the instrument is enhanced, and the instrument is suitable for various complex underground environments.
The foregoing is a more detailed description of the invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments disclosed herein. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (10)
1. A multi-pole array acoustic logging instrument is characterized by comprising a universal electronic short section (1), a receiving line short section (2), a receiving acoustic system short section (3), a sound insulator short section (4), a transmitting acoustic system short section (5) and a transmitting line short section (6) which are sequentially connected; wherein,
the receiving line short section (2) comprises a signal receiving and amplifying circuit, and the signal receiving and amplifying circuit is connected with the universal electronic short section (1) and the receiving sound system short section (3);
the transmitting line short section (6) comprises a voltage stabilizing circuit and an excitation circuit which are connected with each other, and the excitation circuit is connected with the transmitting acoustic system short section (5).
2. A multipole array acoustic tool according to claim 1, wherein the universal electronic sub (1) comprises: a power supply conversion circuit, a signal acquisition processing circuit and a control communication circuit, wherein,
the power supply conversion circuit is respectively connected with the signal acquisition processing circuit and the control communication circuit;
the signal acquisition processing circuit is connected with the control communication circuit and is connected with the signal receiving and amplifying circuit.
3. The tool of claim 2, wherein the output voltage of the power conversion circuit is +15V, -15V, and + 5V.
4. The tool of claim 2, wherein the signal acquisition and processing circuitry includes a plurality of DSP chips.
5. The tool of claim 4, wherein eight DSP chips are provided in the signal acquisition and processing circuitry.
6. A multi-pole sub-array acoustic tool according to claim 2, wherein the receiving acoustic sub (3) comprises a plurality of receiving modules, each of which is connected to the signal receiving and amplifying circuit, the control communication circuit and the power conversion circuit.
7. A multipole array acoustic tool according to claim 1, wherein the receiving sonic sub (3) comprises eight orthogonal dipole receiving assemblies.
8. The multi-pole array sonic tool of claim 1, wherein the acoustic sub (4) comprises an acoustic connector block and an acoustic connector body connected to each other.
9. A multipole array acoustic tool according to claim 2 in which the transmitting sonic sub (5) comprises a plurality of transmitting assemblies, each of which is connected to the excitation circuit, the control communication circuit and the power conversion circuit.
10. A multipole array acoustic tool according to claim 9, wherein the transmitting acoustic sub (5) comprises four transmitting assemblies, respectively a quadrupole transmitting assembly, a first dipole transmitting assembly, a second dipole transmitting assembly and a monopole transmitting assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020020570.8U CN211648136U (en) | 2020-01-06 | 2020-01-06 | Multipole array acoustic logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020020570.8U CN211648136U (en) | 2020-01-06 | 2020-01-06 | Multipole array acoustic logging instrument |
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| Publication Number | Publication Date |
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| CN211648136U true CN211648136U (en) | 2020-10-09 |
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| CN202020020570.8U Active CN211648136U (en) | 2020-01-06 | 2020-01-06 | Multipole array acoustic logging instrument |
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| CN (1) | CN211648136U (en) |
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2020
- 2020-01-06 CN CN202020020570.8U patent/CN211648136U/en active Active
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