CN204028376U - A kind of with boring sonic data interactive device - Google Patents
A kind of with boring sonic data interactive device Download PDFInfo
- Publication number
- CN204028376U CN204028376U CN201420492715.9U CN201420492715U CN204028376U CN 204028376 U CN204028376 U CN 204028376U CN 201420492715 U CN201420492715 U CN 201420492715U CN 204028376 U CN204028376 U CN 204028376U
- Authority
- CN
- China
- Prior art keywords
- voltage
- submodule
- module
- interface module
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a kind ofly with boring sonic data interactive device, described device comprises supply module, Network Interface Module, subsurface equipment power supply voltage regulating module, high-speed transfer processing module, subsurface equipment interface module and processor.Device of the present utility model has high speed data transfer function, can complete the bidirectional data interaction of acoustic logging while drilling instrument and ground system, has strengthened remote testing performance and the maintainability of subsurface equipment simultaneously; The subsurface equipment power supply voltage regulating module of this device can be powered to subsurface equipment, and its operating voltage is adjusted; And the utility model device can be dissimilar with four kinds cable be connected, to adapt to the application of well logging under on-the-spot varying environment.
Description
Technical field
The present invention relates to acoustic logging while drilling technology, relate in particular to a kind of with boring sonic data interactive device.
Background technology
Acoustic logging is to take the logging method that rock elasticity mechanics and wellhole acoustics is theoretical foundation.In acoustic logging while drilling, in work progress, well logger is intermittent duty, each measurement in circulation, and result has tens bytes conventionally, and the data volume of original waveform is in kilobyte; And need the parameter of measuring also than other modes, to log well and need the parameter of measurement many.Be subject to the restriction of the real-time Transmission speed of steam piano, except a small amount of result is sent to ground in real time, a large amount of results and original acoustic waveform data and in real time monitoring parameter etc. are stored in the downhole stored circuit of acoustic logging while drilling instrument, one time during well logging can produce 2GB size data, and these data need to derive after instrument goes out well carries out further fine processing.But after instrument pulls out of hole, host computer just can read the data that are stored in subsurface equipment circuit, these storage data can not be exported in time.Meanwhile, subsurface equipment complex structure, dismounting difficulty, directly reading out data and subsurface equipment is safeguarded and performance test time and effort consuming.
Summary of the invention
In order to address the above problem, the present invention proposes a kind ofly with boring sonic data interaction technique, can make to carry out in time bidirectional data interaction with boring sound wave subsurface equipment and ground system, strengthened subsurface equipment remote testing performance and maintainability.
In order to achieve the above object, the present invention proposes a kind of with boring sonic data interactive device, describedly with boring sonic data interactive device, comprise connected successively Network Interface Module, processor, high-speed transfer processing module and subsurface equipment interface module, and the supply module being connected respectively with described Network Interface Module, described processor, described high-speed transfer processing module and described subsurface equipment interface module; Wherein:
Described supply module, is used to described Network Interface Module, described processor, described high-speed transfer processing module and described subsurface equipment interface module that required direct supply is provided.
Described Network Interface Module, for transmitting data between the host computer that connects at this Network Interface Module and described processor.
Described processor, for the supplemental characteristic receiving from described host computer by described Network Interface Module is compared to judgement, and is sent to described high-speed transfer processing module by revised supplemental characteristic; And the downhole data that described high-speed transfer processing module is sent is processed, and the downhole data after processing is sent to described host computer by described Network Interface Module.
Described high-speed transfer processing module, for promoting the high fdrequency component of the described revised supplemental characteristic receiving from described processor, and the cable by described subsurface equipment interface module and its connection is sent to acoustic logging while drilling instrument by the supplemental characteristic after processing; And the high-frequency data signal of the described acoustic logging while drilling instrument receiving by described cable and described subsurface equipment interface module is processed, form and be applicable to the described downhole data that described processor is processed, and send to described processor.
Described subsurface equipment interface module, for passing through described cable real-time transmission data between described acoustic logging while drilling instrument and described high-speed transfer processing module.
Preferably, described supplemental characteristic comprises stratum characteristic parameter and processing parameter data.
Described processor also compares after judgement, correction for the corresponding supplemental characteristic prestoring according to described stratum characteristic parameter call and the supplemental characteristic receiving, and described revised supplemental characteristic is sent to described high-speed transfer processing module.
Preferably, described processor is also processed for the downhole data in the following way described high-speed transfer processing module being sent: described downhole data is carried out to verification, grouping, packing processing.
Preferably, described high-speed transfer processing module comprises a plurality of equalising networks that are connected in series, the first differential conversion circuit and the first multi-way switch; Wherein:
One end of described a plurality of equalising networks that are connected in series is connected with described subsurface equipment interface module, and for receiving the described high-frequency data signal of described acoustic logging while drilling instrument, the output terminal of each equalising network in described a plurality of equalising network being connected in series series connection with it connects respectively the input end of next equalising network and each switch of described the first multi-way switch are connected, wherein, the output signal of the output terminal output of each equalising network is as input signal and the input signal of described the first multi-way switch to inductive switch of the input end of the next equalising network being connected in series with this equalising network, the input end of each equalising network receives described high-frequency data signal or from the described output signal of previous equalising network, and each equalising network described high-frequency data signal that it is received or carry out equilibrium from the described output signal of previous equalising network, Shape correction by equilibrium, data after Shape correction output to described the first multi-way switch.
Described the first multi-way switch is connected respectively with described processor with the equalising network of described a plurality of series connection, described the first differential conversion circuit, data the described equilibrium of obtaining from each switch, Shape correction are sent to described the first differential conversion circuit, and receive the first switch controlling signal that described processor sends and close with the opening of each switch of Type Control according to described cable.
Described the first differential conversion circuit is connected with described processor with described the first multi-way switch, for by show as described equilibrium differential level signal, that receive from described the first multi-way switch, data Shape correction be converted to show as Transistor-Transistor Logic level signal, be applicable to the described downhole data that described processor processes and send to described processor.
Preferably, described high-speed transfer processing module also comprises a plurality of high boost networks, the second differential conversion circuit and the second multi-way switch; Wherein:
Described the second differential conversion circuit is connected with described the second multi-way switch with described processor, for being converted to by showing as described revised supplemental characteristic Transistor-Transistor Logic level signal, that send from described processor the supplemental characteristic that shows as differential level signal.
Described the second multi-way switch is connected respectively with described processor with described a plurality of high boost networks, described the second differential conversion circuit, for receive through described in show as the supplemental characteristic of differential level signal, and open corresponding switch the described supplemental characteristic that shows as differential level signal is sent to corresponding described high boost network according to the indication of the second switch control signal receiving from described processor.
The input end of each of described a plurality of high boost networks is connected with each switch of described the second multi-way switch respectively, the output terminal of each of described a plurality of high boost networks is connected with described subsurface equipment interface module respectively, each high boost network is for receiving the described supplemental characteristic from described the second multi-way switch, after being promoted, the high fdrequency component of described supplemental characteristic is sent to described acoustic logging while drilling instrument by described subsurface equipment interface module and described cable, wherein described in each, high boost network is corresponding with dissimilar cable respectively.
Preferably, described cable comprises: the outer laboratory of soft rubber that adopts is used short cable, offshore platform to use cable, the on-the-spot mal-condition of cable or outer armouring that uses in land to use cable.
Preferably, describedly with boring sonic data interactive device, also comprise subsurface equipment power supply voltage regulating module, it is connected respectively with described subsurface equipment interface module with external ac power source, for obtaining required AC power by described external ac power source, and the described cable connecting by described subsurface equipment interface module provides required operating voltage for described acoustic logging while drilling instrument.
Preferably, described subsurface equipment power supply voltage regulating module comprises commutator module, Voltage-output submodule, sampling submodule, benchmark judgement submodule and voltage-regulation submodule; Wherein:
The input end of described commutator module is connected with described external ac power source, output terminal is connected with the input end of described Voltage-output submodule, for the power supply signal of its input end input is carried out to rectification processing, and to described Voltage-output submodule output direct-current working volts.
The output terminal of described Voltage-output submodule is connected with described subsurface equipment interface module, for described direct-current working volts are sent to described acoustic logging while drilling instrument for its power supply by described subsurface equipment interface module and described cable.
The input end of described sampling submodule is connected with described subsurface equipment interface module, output terminal is connected with the input end of described benchmark judgement submodule, for receiving described acoustic logging while drilling instrument by the feedback voltage of described cable and described subsurface equipment interface module feedback, and described feedback voltage is input to described benchmark judgement submodule.
The output terminal of described benchmark judgement submodule is connected with the input end of described voltage-regulation submodule, for described feedback voltage and predefined reference voltage are compared, according to comparative result, produce a level adjustment signal, and described level adjustment signal is input to described voltage-regulation submodule.
The output terminal of described voltage-regulation submodule is connected with described Voltage-output submodule, for the described direct-current working volts of exporting according to Voltage-output submodule described in described level adjustment Signal Regulation.
Preferably, described Voltage-output submodule is DC-to-dc DC-DC translation circuit, comprises MOS type transistor metal-oxide-semiconductor, inductance, diode, the first electric capacity; The input end of described inductance is connected with the output terminal of described commutator module, output terminal one tunnel of described inductance is connected with the input end of described diode, and the output terminal of described diode is connected with described subsurface equipment interface module as the output terminal of described Voltage-output submodule; Another road of the output terminal of described inductance is connected with the drain electrode of described metal-oxide-semiconductor, and the source electrode of described metal-oxide-semiconductor is connected with one end of described the first electric capacity, and the other end of described the first electric capacity is connected with the output terminal of described diode; Ground connection between the line of the source electrode of described metal-oxide-semiconductor and described the first electric capacity.
Preferably, described benchmark judgement submodule comprises the first comparer and voltage stabilizing diode.
The negative input end of described the first comparer is connected with the ungrounded end of described sampling submodule, for receiving the described feedback voltage of described sampling submodule, the positive input terminal of described the first comparer connects described voltage stabilizing diode, for receiving the stable voltage from described voltage stabilizing diode, the stable voltage of described voltage stabilizing diode is the predetermined work magnitude of voltage of acoustic logging while drilling instrument.
Preferably, described voltage-regulation submodule comprises RC network and the second comparer, and described RC network comprises the second electric capacity, the first resistance and the second resistance.
The positive input terminal of described the second comparer connects described benchmark judgement submodule, the level signal producing for receiving described benchmark judgement submodule, the negative input end of described the second comparer is connected with one end of described the first resistance with one end of described the second electric capacity respectively.
The other end ground connection of described the second electric capacity, the other end of described the first resistance is connected with the output terminal of described the second comparer.
One end of described the second resistance is connected with the output terminal of described the second comparer, the other end ground connection of described the second resistance, and the output terminal of described the second comparer is connected with the grid of the metal-oxide-semiconductor of described Voltage-output submodule.
Preferably, described subsurface equipment power supply voltage regulating module also comprises display sub-module.
The input end of described display sub-module is connected with the output terminal of described Voltage-output submodule, the output terminal of described display sub-module is connected with the input end of described sampling submodule, for the electric current and voltage of described Voltage-output module output is shown by digital form, and monitor regulation voltage with described electric current and voltage.
Compared with prior art, device of the present invention has high speed data transfer function, by network, is connected with ground system, by cable, is connected with acoustic logging while drilling instrument, complete the bidirectional data interaction of instrument and ground system, strengthened remote testing performance and the maintainability of subsurface equipment; The device that the present invention adopts can also be powered to subsurface equipment, its operating voltage is adjusted stable; And device of the present invention can also be connected with dissimilar cable, to adapt to the application under the on-the-spot varying environment of well logging.
Accompanying drawing explanation
Below the accompanying drawing in the embodiment of the present invention is described, the accompanying drawing in embodiment is for a further understanding of the present invention, is used from explanation the present invention with instructions one, does not form limiting the scope of the invention.
Fig. 1 is with the structured flowchart that bores sonic data interactive device;
Fig. 2 is with the detailed circuit block diagram of boring sonic data interactive device;
Fig. 3 Voltage-output submodular circuits block diagram;
Fig. 4 voltage-regulation submodular circuits block diagram.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, the invention will be further described, can not be used for limiting the scope of the invention.
In acoustic logging while drilling, be subject to the restriction of the real-time Transmission speed of steam piano, except a small amount of result is sent to ground in real time, a large amount of results and original acoustic waveform data and in real time monitoring parameter etc. are stored in the downhole stored circuit of acoustic logging while drilling instrument, can not derive in time and carry out further fine processing.
So need a device as interface circuit, solve and do not dismantling under the rig-site utilization environment of instrument, do not affect under the prerequisite of normal well logging and read the mass data of subsurface equipment storage, thereby improve logging efficiency., proposed with boring sonic data reading device for this reason, made that to carry out in time data double-way mutual with boring sound wave subsurface equipment and ground system, and strengthened subsurface equipment remote testing performance and maintainability.
In order to address the above problem, the present invention proposes a kind ofly with boring sonic data interaction technique, can make that to carry out in time data double-way mutual with boring sound wave subsurface equipment and ground system, and strengthen subsurface equipment remote testing performance and maintainability.
The present invention proposes a kind ofly with boring sonic data interactive device 100, its structured flowchart as shown in Figure 1.This device has high speed data transfer function, by network, is connected with ground system, by cable, is connected with acoustic logging while drilling instrument, completes the bidirectional data interaction of instrument and ground system.Described device adopts portable construction, conveniently in well site and laboratory, carries.Below in conjunction with boring the structured flowchart 1 of sonic data interactive device 100 and being described further with 2 pairs of these devices of detailed circuit block diagram that bore sonic data interactive device 100.
As shown in Figure 1, described device comprises supply module 101, Network Interface Module 102, subsurface equipment power supply voltage regulating module 103, high-speed transfer processing module 104, subsurface equipment interface module 105 and processor 106.
Described supply module 101, is used to described Network Interface Module 102, described processor 106, described high-speed transfer processing module 104 and described subsurface equipment interface module 105 that required direct supply is provided.
Preferably, described supply module comprises the AC-DC AC-DC power module of multichannel output, the various direct supplys that described in the 110-220V AC power of input is converted to, other modules and processor need.
Described Network Interface Module 102, for transmitting data between the host computer that connects at this Network Interface Module 102 and described processor 106.
Preferably, described Network Interface Module 102 is for completing the coding of the decoding of data network protocol; The Internet protocol data decoding that host computer is issued is extracted by parallel bus and is transferred to the described described processor 106 with boring sonic data interactive device 100, and the data encoding that described processor 106 is sent become the Internet protocol data by network cable transmission to host computer.
Described subsurface equipment interface module 105, comprises cable interface and the multiple cable of plugging into.For pass through described cable real-time transmission data between described acoustic logging while drilling instrument and described high-speed transfer processing module 104.
Preferably, the described cable interface in described subsurface equipment interface module 105 adopts the push-pull device of locking, facilitates cable under different condition to switch; Described cable is 7 core cables, and one is power supply output plus terminal, and one is power supply output ground wire, and one is instrument return voltage, two differential data inputs, two differential data outputs.The cable that is Four types according to different environment configurations: the outer laboratory of soft rubber that adopts is used short cable, offshore platform to use cable, the on-the-spot mal-condition of cable, outer armouring that uses in land to use cable.The cable of described Four types connects for acoustic logging while drilling instrument under different operating scene neutralization pit, specific as follows:
1, short cable is used in laboratory, 5 meters of length, inner 7 cores, the outer soft rubber that adopts, the light easy movement requirement while meeting laboratory use.
2, offshore platform is used cable, and 50 meters of length meet platform and drag sled and the requirement of rig floor connecting length.
3, the on-the-spot cable that uses in land, 200 meters of length, meet land workplace and the requirement of rig floor connecting length.
4, mal-condition is used cable, 300 meters of length, outer armouring, long distance and the anti-pressure request of anti-collision of connecting of satisfying the demand.
With boring sonic data interactive device 100, it can also be the power supply of acoustic logging while drilling instrument.Because different type of cables and length have different resistance, and acoustic logging while drilling instrument working current under different operating state is different, and during as acoustic emission or high-voltage charging, while comparing data acquisition, electric current increases 6 times.Under different conditions, the pressure drop on cable is had nothing in common with each other and is differed greatly.With the subsurface equipment power supply voltage regulating module 103 that bores sonic data interactive device 100, automatically according to plugging into different cables and instrument different operating status adjustment output voltage, guarantee the instrument setting operating voltage that keeps fixing on acoustic logging while drilling instrument.
Described subsurface equipment power supply voltage regulating module 103, be connected with subsurface equipment interface module 105 with described supply module, comprise commutator module 331, Voltage-output submodule 332, voltage-regulation submodule 333, benchmark judgement submodule 334, sampling submodule 335 and display sub-module 336.
Preferably, in described subsurface equipment power supply voltage regulating module 103, described commutator module 331 is connected with the input end of described Voltage-output submodule 332, to described Voltage-output submodule 331, provide DC input voitage, the output terminal of described Voltage-output submodule 332 is connected with described subsurface equipment interface module 105 with described display sub-module 336 respectively, for showing the DC voltage of output and powering to subsurface equipment, described sampling submodule 335 is connected between described subsurface equipment interface module 105 and described benchmark judgement submodule 334, receive the voltage that subsurface equipment returns, and described return voltage is inputted to described benchmark judgement submodule 334, described benchmark judgement submodule 334 will produce a level signal after described return voltage and reference voltage, be input to connected described voltage-regulation submodule 333, the output terminal of described voltage-regulation submodule 333 is connected with described Voltage-output submodule 332, described voltage-regulation submodule 333 regulates the output voltage of described Voltage-output submodule 332 according to described level signal.
Preferably, described commutator module 331 is converted to DC voltage with capacitor filtering by exchanging of input by diode full-bridge rectification.
Preferably, described Voltage-output submodule 332 is DC-to-dc DC-DC translation circuit, for input voltage being carried out to voltage transformation output, as shown in Figure 3, described Voltage-output submodule 332 comprises MOS type transistor metal-oxide-semiconductor 3323, inductance 3321, diode 3322, the first electric capacity 3324; The input end of described inductance 3321 is connected with the output terminal of described commutator module 331, the output terminal of described inductance 3321 is connected with the drain D of described metal-oxide-semiconductor 3323 with the input end of described diode 3322, and the output terminal of described diode 3322 is connected with described subsurface equipment interface module 105 as the output terminal of described Voltage-output submodule 332; The source S of described metal-oxide-semiconductor 3323 is connected with one end of described the first electric capacity 3324 and ground connection, and the other end of described the first electric capacity 3324 is connected with the output terminal of described diode 3322.
When described metal-oxide-semiconductor 3323 cut-off, input direct voltage is given described the first electric capacity 3324 chargings by described inductance 3321, when described metal-oxide-semiconductor 3323 conducting, due to the cut-off of described diode 3322, described the first electric capacity 3324 cannot discharge, and substantially keeps original voltage; When described metal-oxide-semiconductor 3323 ends again, due to the charging of input direct voltage, will on the first electric capacity 3324, occur boosting, thereby complete voltage transformation.
Preferably, the 10M Ohmage that described sampling submodule 335 is one end ground connection.
Described sampling submodule 335 passes through the resistance eutral grounding of a 10M ohm by the return voltage of downhole drill acoustic logging instrument, because the resistance of the cable of plugging into is 54 ohm/km, for the longest its resistance of cable of plugging into, it is 16 ohm, acoustic logging while drilling instrument input resistance when gathering is 110 ohm, and when acoustic emission and high-voltage charging, input resistance is 21 ohm of left and right.It is very little that this resistance is compared 10M ohm, and therefore the voltage on 10M Ohmage is approximately acoustic logging while drilling instrument input service voltage.
Preferably, described benchmark judgement submodule 334 comprises the first comparer and voltage stabilizing diode.
The negative input end of described the first comparer is connected with the ungrounded end of described sampling submodule 335, for receiving the described feedback voltage of described sampling submodule 335, the positive input terminal of described the first comparer connects described voltage stabilizing diode, for receiving the stable voltage from described voltage stabilizing diode, the stable voltage of described voltage stabilizing diode is the predetermined work magnitude of voltage of acoustic logging while drilling instrument.
Described voltage stabilizing diode is the voltage stabilizing diode of 21V for example, sampling voltage on 10M ohm of sampling submodule 335 is inputted the negative input end of the first comparer, 21V burning voltage is inputted the positive input terminal of the first comparer, and 21V is also the predetermined work voltage of acoustic logging while drilling instrument.
Preferably, the principle of work of described benchmark judgement submodule 334 is, the voltage returning when described sampling submodule 335 is during lower than the stable voltage 21V of described voltage stabilizing diode, comparer output high level; Described high level is as the input voltage of described voltage-regulation submodule 333, be incorporated to the reference power supply end of voltage-regulation submodule 333 second comparers, it is positive input terminal, as feedback signal, control the size of Voltage-output submodule 332 last output voltages, make acoustic logging while drilling instrument terminal voltage be stabilized in the stable voltage of described voltage stabilizing diode, i.e. 21V.
Preferably, as shown in Figure 4, described voltage-regulation submodule 333 comprises RC network and the second comparer 3331, and described RC network comprises the second electric capacity 3333, the first resistance 3334 and the second resistance 3335.
The positive input terminal of described the second comparer 3331 connects described benchmark judgement submodule 334, the level signal producing for receiving described benchmark judgement submodule,, reference level, the negative input end of described the second comparer 3331 is connected with one end of described the first resistance 3334 with one end of described the second electric capacity 3333 respectively.
The other end ground connection of described the second electric capacity 3333, the other end of described the first resistance 3334 is connected with the output terminal of described the second comparer 3331.
One end of described the second resistance 3335 is connected with the output terminal of described the second comparer 3331, the other end ground connection 3336 of described the second resistance 3335, and the output terminal of described the second comparer 3331 is connected with the grid G of the metal-oxide-semiconductor 3323 of described Voltage-output submodule 3332.
Preferably, described voltage-regulation submodule 333 is realized the output voltage of described Voltage-output submodule 332 is regulated, be specially, when RC network discharges and recharges concussion, the second comparer 3331 outputs can produce periodic low and high level, and described low and high level accesses the grid G utmost point of described metal-oxide-semiconductor, controls the conducting of described metal-oxide-semiconductor and closes the cycle, the conducting of metal-oxide-semiconductor and close the ratio in cycle and determined the size of Voltage-output submodule 332 output voltages, thus voltage-regulation completed.
Preferably, display sub-module 336 can show the electric current and voltage of Voltage-output submodule 332 outputs by digital form, as the monitoring of regulation voltage, and can Real Time Observation acoustic logging while drilling instrument working condition, as a kind of supplementary mode of fault judgement.
The specific works flow process of subsurface equipment power supply voltage regulating module 103 is as follows:
Dividing potential drop after step S101, ac voltage rectifier, the DC voltage of generation is the input of voltage load module 332 (DC-DC).
Step S102, DC-DC output voltage are exported to downhole drill acoustic logging instrument through subsurface equipment interface module 105 by the cable of plugging into.
Step S103, when acoustic logging while drilling instrument during at acoustic emission and high-voltage charging electric current very large, on the cable of plugging into, cause larger pressure drop, this pressure drop also can be different and different because the difference cable resistance of plugging into, and make in a word the operating voltage on acoustic logging while drilling instrument be less than 21V.
On step S104, acoustic logging while drilling instrument, operating voltage enters with boring sonic data interactive device 100 by the return voltage cable of this instrument, on the 10M resistance of sampling submodule 335, produce the sampled voltage that is less than 21V, so the first comparer output high level of benchmark judgement submodule 334.
Step S105, the second comparer 3331 input negative voltages of voltage-regulation submodule 333 are low when initial, the first comparer output high level when benchmark judgement submodule 334, the comparer incoming level (this level is as the reference level of the second comparer 3331) of the second comparer 3331 of voltage-regulation submodule 333 is high, make the second comparer 3331 outputs high, thereby make metal-oxide-semiconductor 3323 conductings.The second comparer 3331 output high level give electric capacity 3333 chargings by resistance 3334, and the second comparer 3331 input negative terminal voltages are increased gradually, finally make the second comparer 3331 outputs low.Whole process has increased the ON time of metal-oxide-semiconductor 3323, has increased output voltage.Electric capacity can make the second comparer 3331 input negative terminal voltages revert to low level by resistance 3334 and resistance 3335 slowly electric discharge over the ground again, gets back to original state.
Step S106, when operating voltage is higher than 21V on acoustic logging while drilling instrument, produces to catch up with and state contrary process, reduce output voltage.Finally reach and make on acoustic logging while drilling instrument stable operating voltage at 21V.
Because different type of cables and length have different impedances, for high-frequency signal, transmission has different attenuation characteristics, of the present invention have self-adapting high-speed circuit transmission matching module 104 with boring sonic data interactive device 100, when plugging into different cable, do not need to do any adjusting, just can guarantee data stable transfer under the speed of 2Mb/s, can within half an hour, complete in well logger and store reading of data, greatly save rig floor holding time.
Here rig floor refers to drilling platform, when top, drives when instrument is operated as acoustic logging while drilling instrument is hung in well head, can not carry out other drilling well flow processs, can only wait for that instrumentation completes, and is called during this period of time rig floor holding time.
Described high-speed transfer processing module 104, for promoting the high fdrequency component of the described revised supplemental characteristic receiving from described processor 106, and the cable by described subsurface equipment interface module 105 and its connection is sent to acoustic logging while drilling instrument by the supplemental characteristic after processing; And the high-frequency data signal of the described acoustic logging while drilling instrument receiving by described cable and described subsurface equipment interface module 105 is processed, form and be applicable to the described downhole data that described processor is processed, and send to described processor 106.
Described high-speed transfer processing module 104 comprises a plurality of equalising networks that are connected in series 441, the first differential conversion circuit 4431 and the first multi-way switch 4441; Wherein:
One end of described a plurality of equalising networks that are connected in series 441 is connected with described subsurface equipment interface module 105, and for receiving the described high-frequency data signal of described acoustic logging while drilling instrument, the input end of the output terminal of each equalising network 441 in described a plurality of equalising network the being connected in series 441 next equalising network 441 that series connection with it connects is respectively connected with each switch of described the first multi-way switch 4441, wherein, the output signal of the output terminal output of each equalising network 441 is as the input signal of input end and the input signal of 4441 pairs of inductive switch of described the first multi-way switch of the next equalising network 441 being connected in series with this equalising network 441, the input end of each equalising network 441 receives described high-frequency data signal or from the described output signal of previous equalising network 441, and each equalising network 441 described high-frequency data signal that it is received or carry out equilibrium from the described output signal of previous equalising network 441, Shape correction by equilibrium, data after Shape correction output to described the first multi-way switch 4441.
Described the first multi-way switch 4441 is connected respectively with described processor 106 with the equalising network 441 of described a plurality of series connection, described the first differential conversion circuit 4431, data the described equilibrium of obtaining from each switch, Shape correction are sent to described the first differential conversion circuit 4431, and receive the first switch controlling signal that described processor 106 sends and close with the opening of each switch of Type Control according to described cable.
Described the first differential conversion circuit 4431 is connected with described processor 106 with described the first multi-way switch 4441, for by show as described equilibrium differential level signal, that receive from described the first multi-way switch 4441, data Shape correction be converted to show as Transistor-Transistor Logic level signal, be applicable to the described downhole datas that described processor 106 processes and send to described processor 106.
Preferably, the T-shaped network that the equalising network 441 of described N series connection can be comprised of resistance in series and shunt capacitance, for decay that the high-frequency signal of signal transmission is added up.
Wherein, the T-shaped network that each equalising network 441 is comprised of resistance in series and shunt capacitance, can have certain decay to the rf amplitude of signal transmission.Equalising network 441 series connection can be done cumulative decay to high-frequency signal.Because acoustic logging while drilling instrument has artificially been done and promoted the decay of the longest satisfied cable to high-frequency signal high-frequency signal at its signal sending end, equalising network 441 can compensate the actual deficiency of cable for high frequency attenuation of plugging into.
The different tap signal design of series connection equalising network just in time can compensate three kinds of other cables, and the signal that acoustic logging while drilling instrument is sent is just in time balanced in tap place.Particularly, as shown in Figure 2, the equalising network 441 of N series connection, except having the signal path of mutual series connection, every one-level has an output to receive the first multi-way switch 4441, and this each output is exactly a tap signal.Tap signal has three, and the total output signal that adds 441 series connection of last equalising network is totally four signals, and high-frequency signal has been done to decay in various degree, for to four kinds of cables, (short cable is used in plug into four kinds of cables 1, laboratories of this device; 2, offshore platform is used cable; 3, the on-the-spot cable that uses in land; 4, mal-condition use cable) actual different high frequency attenuation compensates.At this, tap signal and total output signal are not limited to four, the four kinds of cables of plugging into here, if the cable type of plugging into increases, number of taps can increase to satisfy the demands.
The shortest cable of total output signal compensation of N equalising network 441 series connection, 1, laboratory used short cable.The output signal of other intergrades, different tap signal can compensate 2,3,4 these three kinds of cables.
Described high-speed transfer processing module 104 also comprises a plurality of high boost networks 442, the second differential conversion circuit 4432 and the second multi-way switch 4442; Wherein,
Described the second differential conversion circuit 4432 is connected with described the second multi-way switch 4442 with described processor 106, for being converted to by showing as described revised supplemental characteristic Transistor-Transistor Logic level signal, that send from described processor 106 supplemental characteristic that shows as differential level signal.
Described the second multi-way switch 4442 is connected respectively with described processor 106 with described a plurality of high boost networks 442, described the second differential conversion circuit 4432, for receive through described in show as the supplemental characteristic of differential level signal, and open corresponding switch the described supplemental characteristic that shows as differential level signal is sent to corresponding described high boost network 442 according to the indication of the second switch control signal receiving from described processor 106.
The input end of each of described a plurality of high boost networks 442 is connected with each switch of described the second multi-way switch 4442 respectively, the output terminal of each of described a plurality of high boost networks 442 is connected with described subsurface equipment interface module 105 respectively, each high boost network 442 is for receiving the described supplemental characteristic from described the second multi-way switch 4442, after being promoted, the high fdrequency component of described supplemental characteristic is sent to described acoustic logging while drilling instrument by described subsurface equipment interface module 105 and described cable, wherein described in each, high boost network 442 is corresponding with dissimilar cable respectively.
Preferably, the ∏ type network that described four high boost networks 442 are comprised of parallel resistance and series capacitance, amplifies the HFS of signal, is used for offsetting the impact of loss on signal waveform.
Preferably, the capacitance-resistance of described four high boost networks 442 arranges respectively for four kinds of different transmission cables, makes signal after certain transmission cable and its corresponding high boost network, the signal equalization of receiving in acoustic logging while drilling instrument termination.
Preferably, described the first differential conversion circuit 4431 and described the second differential conversion circuit 4432 form by differential driving chip, described the first differential conversion circuit 4431 transfers differential level signal to single-ended Transistor-Transistor Logic level signal, and described the second differential conversion circuit 4432 transfers single-ended Transistor-Transistor Logic level signal to differential level signal.
Preferably, multi-way switch can be connected with a certain road input end by control level height control output end.
High-speed transfer processing module 104 principle of work and flow process are as follows:
Step S11, first acoustic logging while drilling instrument sends the differential clock signal of 2Mb/s frequency, and this signal enters with boring sonic data interactive device 100 through plug into cable and the cable interface at subsurface equipment interface module 105 places.
Step S12, this signal, by the twisted-pair feeder access N level series connection equalising network 441 of cable interface, all have signal output at each tap terminals.These signal outputs are exactly that this signal has been done to the signal afterwards of high boost in various degree.
Step S13, with the processor 106 that bores sonic data interactive device 100, send control code, make first multi-way switch 4441 first tap signal of output gating, the first multi-way switch 4441 output signals are converted to single-ended TTL signal through the first differential conversion circuit 4431.
At this, as previously mentioned, for four kinds of cables, have four tap signal, N equalising network series connection, first tap signal is the output signal of first equalising network, this output signal is minimum for high frequency signal attenuation, compensates its high frequency attenuation during for the longest cable of plugging into (being cable 4).
Step S14, this single-ended signal are input to processor 106, use high frequency clock to read.Whether low-and high-frequency signal is balanced after equalising network 441 compensation by high-low-position number, whether unanimously to judge current tap signal end, if not, processor 106 changes control code, make the next tap signal of the first multi-way switch 4441 output gating, compare again, until find suitable tap signal.Consistent with the input end of the first multi-way switch 4441 in the access order of the second multi-way switch 4442 input ends due to high boost network 442 being set, the high boost network that the second multi-way switch 4442 is selected just in time mates the current cable of plugging into.Such as the short cable in the current laboratory of plugging into, afterbody equalising network tap signal is just in time balanced so.Now multi-way switch 1 control code is 11, selects last road input signal output.And multi-way switch 2 control codes are also 11, connect last road high boost network, and this high boost network also arranges just applicable and laboratory short cable combination settling signal is balanced.
Particularly, can be with reference to figure 2 and the description to tap signal above, understand the process of mating the cable of plugging into by differential conversion circuit 443 and multi-way switch 444: after the cable of plugging into is connected with acoustic logging while drilling instrument by described subsurface equipment interface module 105, input signal is by the plug into input of cable access N level equalising network 441 of twisted-pair feeder, then in each tap and the total output terminal of series connection, can produce an output signal, each output signal is that input signal has been done to the signal afterwards of high frequency attenuation in various degree, these a plurality of output signals are received the input of the first multi-way switch 4441, by processor 106, send multi-way switch control code, select a road signal to access the first differential conversion circuit 4431.
Step S15, processor 106 be multi-way switch control code fixedly, its transmitted signal becomes differential level signal through the second differential conversion circuit 4432, after the high boost network 442 that this signal is selected through the second multi-way switch 4442, by twisted-pair feeder and cable interface, via the cable of plugging into, sends to acoustic logging while drilling instrument end.Through said process automatic decision, select, all can low-and high-frequency balance at signal sending end and receiving end, meet high speed data transfer coupling demand.It should be noted that, different with the series connection of equalising network N level, high boost network is a plurality of parallel connections, and number is identical with the cable type number of plugging into, the corresponding cable of plugging into of each high boost network, and the present embodiment is 4.
Wherein, processor 106 fixedly multi-way switch control code refers to that the first multi-way switch 4441 and the second multi-way switch 4442 use same multi-way switch control code, processor 106 has been determined the control code of multi-way switch 1 by step 4, re-use same control code and control the second multi-way switch 4442.As step 4 first paragraph, finally described " now multi-way switch 1 control code is 11, selects input signal output of last road.And multi-way switch 2 control codes are also 11 ".
Described processor 106 comprises arm processor and peripheral circuit, and described peripheral circuit comprises outer extension memory, clock circuit.
Described processor 106, for the supplemental characteristic receiving from described host computer by described Network Interface Module 102 is compared to judgement, and is sent to described high-speed transfer processing module 103 by revised supplemental characteristic; And the downhole data that described high-speed transfer processing module 104 is sent is processed, and the downhole data after processing is sent to described host computer by described Network Interface Module 102.
Described supplemental characteristic comprises stratum characteristic parameter and processing parameter data.
Preferably, described processor 106 also compares after judgement, correction for the corresponding supplemental characteristic prestoring according to described stratum characteristic parameter call and the supplemental characteristic receiving, and described revised supplemental characteristic is sent to described high-speed transfer processing module 104.
Preferably, described processor 106 is also processed for the downhole data in the following way described high-speed transfer processing module 104 being sent: described downhole data is carried out to verification, grouping, packing processing.
In sum, as follows with boring sonic data interactive device 100 workflows:
S21, use netting twine are connected with host computer.
S22, according to on-the-spot long cable or the laboratory of using of laboratory or Context switches well logging, use short cable to be connected with acoustic logging while drilling instrument.
S23, adjusting subsurface equipment supply voltage regulate submodule 103, give acoustic logging while drilling instrument output proper operation voltage, monitor by instrument electric current and voltage display module 336 simultaneously.
Data distributing process:
S24, host computer editor stratum characteristic parameter and processing parameter data distributing, data by network cable transmission to boring in sonic data interactive device 100, after being introduced into internet transmission of virtual laboratory decoding, from parallel data bus line, be input to core processing part, core processing part is according to prestore in parameter module corresponding supplemental characteristic and issue data and compare judgement of stratum feature invocation, revise unreasonable parameter, revised parameter is issued to module through parameter and send to data high-speed hop.
S25, data high-speed hop carry out cable interface and the cable by subsurface equipment coupling part after signal shaping processing and send to acoustic logging while drilling instrument, message transmission rate 1Mb/s.
Data upload process:
S26, acoustic logging while drilling instrument storage data arrive data high-speed hop, message transmission rate 1Mb/s through cable interface and the cable transmission of subsurface equipment interface module 105.
S27, high-speed transfer processing module 104 carry out sending to core processing part after signal shaping processing, and processor 106, and processor 106 carries out verification, grouping, packing and is transferred to Network Interface Module 102 by parallel bus.After Network Interface Module 102 coding by network cable transmission to host computer.
It should be noted that; above-described embodiment understands for the ease of those skilled in the art; be not limited to protection scope of the present invention; do not departing under the prerequisite of inventive concept of the present invention, any apparent replacement that those skilled in the art make the present invention and improvement etc. are all within protection scope of the present invention.
Claims (12)
1. one kind with boring sonic data interactive device, it is characterized in that, describedly with boring sonic data interactive device, comprise connected successively Network Interface Module, processor, high-speed transfer processing module and subsurface equipment interface module, and the supply module being connected respectively with described Network Interface Module, described processor, described high-speed transfer processing module and described subsurface equipment interface module; Wherein,
Described supply module, is used to described Network Interface Module, described processor, described high-speed transfer processing module and described subsurface equipment interface module that required direct supply is provided;
Described Network Interface Module, for transmitting data between the host computer that connects at this Network Interface Module and described processor;
Described processor, for the supplemental characteristic receiving from described host computer by described Network Interface Module is compared to judgement, and is sent to described high-speed transfer processing module by revised supplemental characteristic; And the downhole data that described high-speed transfer processing module is sent is processed, and the downhole data after processing is sent to described host computer by described Network Interface Module;
Described high-speed transfer processing module, for promoting the high fdrequency component of the described revised supplemental characteristic receiving from described processor, and the cable by described subsurface equipment interface module and its connection is sent to acoustic logging while drilling instrument by the supplemental characteristic after processing; And the high-frequency data signal of the described acoustic logging while drilling instrument receiving by described cable and described subsurface equipment interface module is processed, form and be applicable to the described downhole data that described processor is processed, and send to described processor;
Described subsurface equipment interface module, for passing through cable real-time transmission data between described acoustic logging while drilling instrument and described high-speed transfer processing module.
2. as claimed in claim 1ly with boring sonic data interactive device, it is characterized in that, described supplemental characteristic comprises stratum characteristic parameter and processing parameter data;
Described processor also compares after judgement, correction for the corresponding supplemental characteristic prestoring according to described stratum characteristic parameter call and the supplemental characteristic receiving, and described revised supplemental characteristic is sent to described high-speed transfer processing module.
3. as claimed in claim 1 or 2 with boring sonic data interactive device, it is characterized in that, described processor is also processed for the downhole data in the following way described high-speed transfer processing module being sent: described downhole data is carried out to verification, grouping, packing processing.
4. as claimed in claim 1ly with boring sonic data interactive device, it is characterized in that, described high-speed transfer processing module comprises a plurality of equalising networks that are connected in series, the first differential conversion circuit and the first multi-way switch; Wherein,
One end of described a plurality of equalising networks that are connected in series is connected with described subsurface equipment interface module, and for receiving the described high-frequency data signal of described acoustic logging while drilling instrument, the output terminal of each equalising network in described a plurality of equalising network being connected in series series connection with it connects respectively the input end of next equalising network and each switch of described the first multi-way switch are connected, wherein, the output signal of the output terminal output of each equalising network is as input signal and the input signal of described the first multi-way switch to inductive switch of the input end of the next equalising network being connected in series with this equalising network, the input end of each equalising network receives described high-frequency data signal or from the described output signal of previous equalising network, and each equalising network described high-frequency data signal that it is received or carry out equilibrium from the described output signal of previous equalising network, Shape correction by equilibrium, data after Shape correction output to described the first multi-way switch,
Described the first multi-way switch is connected respectively with described processor with the equalising network of described a plurality of series connection, described the first differential conversion circuit, data the described equilibrium of obtaining from each switch, Shape correction are sent to described the first differential conversion circuit, and receive the first switch controlling signal that described processor sends and close with the opening of each switch of Type Control according to described cable;
Described the first differential conversion circuit is connected with described processor with described the first multi-way switch, for by show as described equilibrium differential level signal, that receive from described the first multi-way switch, data Shape correction be converted to show as Transistor-Transistor Logic level signal, be applicable to the described downhole data that described processor processes and send to described processor.
5. as claimed in claim 4ly with boring sonic data interactive device, it is characterized in that, described high-speed transfer processing module also comprises a plurality of high boost networks, the second differential conversion circuit and the second multi-way switch; Wherein,
Described the second differential conversion circuit is connected with described the second multi-way switch with described processor, for being converted to by showing as described revised supplemental characteristic Transistor-Transistor Logic level signal, that send from described processor the supplemental characteristic that shows as differential level signal;
Described the second multi-way switch is connected respectively with described processor with described a plurality of high boost networks, described the second differential conversion circuit, for receive through described in show as the supplemental characteristic of differential level signal, and open corresponding switch the described supplemental characteristic that shows as differential level signal is sent to corresponding described high boost network according to the indication of the second switch control signal receiving from described processor;
The input end of each of described a plurality of high boost networks is connected with each switch of described the second multi-way switch respectively, the output terminal of each of described a plurality of high boost networks is connected with described subsurface equipment interface module respectively, each high boost network is for receiving the described supplemental characteristic from described the second multi-way switch, after being promoted, the high fdrequency component of described supplemental characteristic is sent to described acoustic logging while drilling instrument by described subsurface equipment interface module and described cable, wherein described in each, high boost network is corresponding with dissimilar cable respectively.
6. as claimed in claim 1 with boring sonic data interactive device, it is characterized in that, described cable comprises: the outer laboratory of soft rubber that adopts is used short cable, offshore platform to use cable, the on-the-spot mal-condition of cable or outer armouring that uses in land to use cable.
7. as claimed in claim 1 with boring sonic data interactive device, it is characterized in that, describedly with boring sonic data interactive device, also comprise subsurface equipment power supply voltage regulating module, it is connected respectively with described subsurface equipment interface module with external ac power source, for obtaining required AC power by described external ac power source, and the described cable connecting by described subsurface equipment interface module provides required operating voltage for described acoustic logging while drilling instrument.
8. as claimed in claim 7ly with boring sonic data interactive device, it is characterized in that, described subsurface equipment power supply voltage regulating module comprises commutator module, Voltage-output submodule, sampling submodule, benchmark judgement submodule and voltage-regulation submodule; Wherein,
The input end of described commutator module is connected with described external ac power source, output terminal is connected with the input end of described Voltage-output submodule, for the power supply signal of its input end input is carried out to rectification processing, and to described Voltage-output submodule output direct-current working volts;
The output terminal of described Voltage-output submodule is connected with described subsurface equipment interface module, for described direct-current working volts are sent to described acoustic logging while drilling instrument for its power supply by described subsurface equipment interface module and described cable;
The input end of described sampling submodule is connected with described subsurface equipment interface module, output terminal is connected with the input end of described benchmark judgement submodule, for receiving described acoustic logging while drilling instrument by the feedback voltage of described cable and described subsurface equipment interface module feedback, and described feedback voltage is input to described benchmark judgement submodule;
The output terminal of described benchmark judgement submodule is connected with the input end of described voltage-regulation submodule, for described feedback voltage and predefined reference voltage are compared, according to comparative result, produce a level adjustment signal, and described level adjustment signal is input to described voltage-regulation submodule;
The output terminal of described voltage-regulation submodule is connected with described Voltage-output submodule, for the described direct-current working volts of exporting according to Voltage-output submodule described in described level adjustment Signal Regulation.
9. as claimed in claim 8ly with boring sonic data interactive device, it is characterized in that, described Voltage-output submodule is DC-to-dc DC-DC translation circuit, comprises MOS type transistor metal-oxide-semiconductor, inductance, diode, the first electric capacity; The input end of described inductance is connected with the output terminal of described commutator module, output terminal one tunnel of described inductance is connected with the input end of described diode, and the output terminal of described diode is connected with described subsurface equipment interface module as the output terminal of described Voltage-output submodule; Another road of the output terminal of described inductance is connected with the drain electrode of described metal-oxide-semiconductor, and the source electrode of described metal-oxide-semiconductor is connected with one end of described the first electric capacity, and the other end of described the first electric capacity is connected with the output terminal of described diode; Ground connection between the line of the source electrode of described metal-oxide-semiconductor and described the first electric capacity.
10. as claimed in claim 8ly with boring sonic data interactive device, it is characterized in that, described benchmark judgement submodule comprises the first comparer and voltage stabilizing diode;
The negative input end of described the first comparer is connected with the ungrounded end of described sampling submodule, for receiving the described feedback voltage of described sampling submodule, the positive input terminal of described the first comparer connects described voltage stabilizing diode, for receiving the stable voltage from described voltage stabilizing diode, the stable voltage of described voltage stabilizing diode is the predetermined work magnitude of voltage of acoustic logging while drilling instrument.
11. as claimed in claim 8ly is characterized in that with boring sonic data interactive device, and described voltage-regulation submodule comprises RC network and the second comparer, and described RC network comprises the second electric capacity, the first resistance and the second resistance;
The positive input terminal of described the second comparer connects described benchmark judgement submodule, the level signal producing for receiving described benchmark judgement submodule, the negative input end of described the second comparer is connected with one end of described the first resistance with one end of described the second electric capacity respectively;
The other end ground connection of described the second electric capacity, the other end of described the first resistance is connected with the output terminal of described the second comparer;
One end of described the second resistance is connected with the output terminal of described the second comparer, the other end ground connection of described the second resistance, and the output terminal of described the second comparer is connected with the grid of the metal-oxide-semiconductor of described Voltage-output submodule.
12. as claimed in claim 8ly is characterized in that with boring sonic data interactive device, and described subsurface equipment power supply voltage regulating module also comprises display sub-module;
The input end of described display sub-module is connected with the output terminal of described Voltage-output submodule, the output terminal of described display sub-module is connected with the input end of described sampling submodule, for the electric current and voltage of described Voltage-output module output is shown by digital form, and monitor regulation voltage with described electric current and voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492715.9U CN204028376U (en) | 2014-08-28 | 2014-08-28 | A kind of with boring sonic data interactive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420492715.9U CN204028376U (en) | 2014-08-28 | 2014-08-28 | A kind of with boring sonic data interactive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204028376U true CN204028376U (en) | 2014-12-17 |
Family
ID=52068217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420492715.9U Expired - Fee Related CN204028376U (en) | 2014-08-28 | 2014-08-28 | A kind of with boring sonic data interactive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204028376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285648A (en) * | 2015-05-13 | 2017-01-04 | 中国石油化工股份有限公司 | The signal transmit-receive method of ground installation and the signal transmit-receive method of underground equipment |
-
2014
- 2014-08-28 CN CN201420492715.9U patent/CN204028376U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285648A (en) * | 2015-05-13 | 2017-01-04 | 中国石油化工股份有限公司 | The signal transmit-receive method of ground installation and the signal transmit-receive method of underground equipment |
| CN106285648B (en) * | 2015-05-13 | 2019-09-20 | 中国石油化工股份有限公司 | The signal transmit-receive method of ground installation and the signal transmit-receive method of underground equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102413608B (en) | Reference voltage regulation method and circuit as well as constant-current source driving circuit utilizing same | |
| CN107508551B (en) | A kind of IV scan method of centralization photovoltaic generating system | |
| EA014849B1 (en) | Power supply system for downhole network | |
| CN102437736A (en) | Voltage output adjustment method and system of linear power supply chip as well as chip | |
| CN106537749A (en) | Method and device used for controlling output voltage and adapter | |
| CN106032745A (en) | A digital separated layer water injection ground control system and method | |
| CN204028376U (en) | A kind of with boring sonic data interactive device | |
| CN105900307A (en) | Control of dc transmission lines | |
| CN203632686U (en) | Half-duplex communication circuit applied to oil well test system | |
| CN104283587B (en) | A kind of energy and information time-division composite transmission system with common mode current inhibition ability | |
| CN103576544A (en) | Terminal with OTG function | |
| CN104121015A (en) | Method for hitching underground logging instrument and logging ground system | |
| CN104635272B (en) | Distributed high-density electrical method instrument | |
| CN103427877B (en) | Power carrier MBUS (meter bus) data converter and remote control method of MBUS equipment | |
| CN203479854U (en) | Loop signal code sender | |
| CN215730194U (en) | Ground transmitting device suitable for drilling wireless remote measuring system | |
| CN103713538B (en) | LED guide plate controller | |
| CN205901734U (en) | Bimodulus communication controller | |
| CN204515160U (en) | Offshore shooting instrument towing cable DC constant current power supply is powered and is gone up electric system step by step | |
| CN104407657B (en) | A kind of method of the on-line control radiation detector high pressure based on digital regulation resistance | |
| CN104790942A (en) | Ultrasonic logging instrument for achieving carrier communication through ultrasonic transmission power circuit | |
| CN110535229A (en) | A kind of measurement while drilling MWD management system of dual power supply | |
| CN203689044U (en) | LED guide board controller | |
| CN208873281U (en) | A kind of receive-transmit system being used for transmission situ of drilling well data | |
| CN201574749U (en) | Logging ground or downhole signal receiving circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Xicheng District, Xicheng District, Beijing Co-patentee after: CHINA OILFIELD SERVICES Ltd. Patentee after: CHINA NATIONAL OFFSHORE OIL Corp. Address before: 100010 Chaoyangmen North Street, Xicheng District, Xicheng District, Beijing Co-patentee before: CHINA OILFIELD SERVICES Ltd. Patentee before: CHINA NATIONAL OFFSHORE OIL Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |