CN201574750U - Logging ground and downhole signal two-way transmission circuit - Google Patents
Logging ground and downhole signal two-way transmission circuit Download PDFInfo
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- CN201574750U CN201574750U CN2009202773507U CN200920277350U CN201574750U CN 201574750 U CN201574750 U CN 201574750U CN 2009202773507 U CN2009202773507 U CN 2009202773507U CN 200920277350 U CN200920277350 U CN 200920277350U CN 201574750 U CN201574750 U CN 201574750U
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Abstract
The utility model relates to the technical field of ground and downhole data transmission circuits of oil well logging systems, in particular to a logging ground and downhole signal two-way transmission circuit which comprises a ground communication transformer, a downhole communication transformer, a ground signal transmitter, a ground signal receiver, a downhole signal transmitter and a downhole signal receiver; the ground communication transformer comprises a first primary ground winding coil, a second primary ground winding coil and a secondary ground winding coil; and the downhole communication transformer comprises a first primary downhole winding coil, a second primary downhole winding coil and a secondary downhole winding coil. The logging ground and downhole signal two-way transmission circuit has reasonable structure, convenient use and high cost performance, and is very suitable for being used by a downhole instrument for oil exploration as the volume is greatly reduced; as the software is adopted to realize coding and decoding, the multiprotocol communication can be realized without changing the circuit; and the integration of the instrument is improved, so that the failure rate of the instrument is reduced and the maintenance is convenient.
Description
One, technical field
The utility model relates to oil well logging system ground and downhole data transmission circuit engineering field, is a kind of well logging ground and underground signal transmitted in both directions circuit.
Two, background technology
Along with hyundai electronics and computer technology rapid development, logger is brought in constant renewal in and is regenerated, and having formed is the numerical control logging instrument at center with the computer.The logging remote transmission device is the important component part of downhole instruments for petroleum logging transfer of data.The logging remote transmission device is as the information transfer channel between ground-based computer system and downhole instrument, and it has two functions: the one, the control command on ground is sent to each downhole instrument, and control the work of each instrument; The 2nd, the metrical information of each downhole instrument is sent to ground system.The logging remote transmission communication mode is the core of the spread of the rumours device.
The logging remote transmission device is made of the not high hardware circuit of integrated level mostly at present, the decoding that sends instructions under realizing and the encoding function of upstream data.But the circuit that this mode constitutes, integrated level is low, and the variation of certain element characteristic all may cause communication failure, and components and parts are numerous, repairs difficulty relatively.The downhole instrument system transport protocol is because function is different and different with the transmission reliability requirement in addition, and as changing communications protocol, also in requisition for the change hardware circuit, cost is higher, and the time cycle is long.
Three, summary of the invention
The utility model provides a kind of well logging ground and underground signal transmitted in both directions circuit, has overcome the deficiency of above-mentioned prior art, and it can effectively solve existing logging remote transmission device maintenance difficult, need change the problem of hardware circuit when carrying out the communication of various protocols.
The technical solution of the utility model realizes by following measure: a kind of well logging ground and underground signal transmitted in both directions circuit comprise ground communication transformer, underground communica tion transformer, ground signal transmitter, ground signal receiver, underground signal transmitter and underground signal receiver; The ground communication transformer comprises ground first primary winding coil, ground second primary winding coil and ground secondary windings coil, and the underground communica tion transformer comprises down-hole first primary winding coil, down-hole second primary winding coil and down-hole secondary windings coil; Ground secondary windings coil is electrically connected by cable and down-hole secondary windings coil, ground signal transmitter and ground first primary winding coil are electrically connected, underground signal receiver and down-hole second primary winding coil are electrically connected, underground signal transmitter and down-hole first primary winding coil are electrically connected, and ground signal receiver and ground second primary winding coil are electrically connected.
Be further optimization and/or improvements below to above-mentioned utility model technical scheme:
Above-mentioned ground signal transmitter can comprise the ground signal transtation mission circuit; This ground signal transtation mission circuit comprises first metal-oxide-semiconductor and second metal-oxide-semiconductor; Input termination in the middle of first positive pulse signal input termination, first undersuing input termination and first is arranged on first primary winding coil of ground; The high potential of ground secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The grid electricity of first resistance and first metal-oxide-semiconductor is serially connected, the drain electrode of first metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and first dc source in the middle of second resistance and first positive pulse signal input termination, first, and the negative electricity of the source electrode of first metal-oxide-semiconductor and first dc source is serially connected; The grid electricity of the 3rd resistance and second metal-oxide-semiconductor is serially connected, the drain electrode of second metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and first dc source in the middle of the 4th resistance and first undersuing input termination, first, and the negative electricity of the source electrode of second metal-oxide-semiconductor and first dc source is serially connected; The underground signal transmitter comprises the underground signal transtation mission circuit; This underground signal transtation mission circuit comprises the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor; Input termination in the middle of second positive pulse signal input termination, second undersuing input termination and second is arranged on first primary winding coil of down-hole; The high potential of down-hole secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The grid electricity of the 5th resistance and the 3rd metal-oxide-semiconductor is serially connected, the drain electrode of the 3rd metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and second dc source in the middle of the 6th resistance and second positive pulse signal input termination, second, and the negative electricity of the source electrode of the 3rd metal-oxide-semiconductor and second dc source is serially connected; The grid electricity of the 7th resistance and the 4th metal-oxide-semiconductor is serially connected, the drain electrode of the 4th metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and second dc source in the middle of the 8th resistance and second undersuing input termination, second, and the negative electricity of the source electrode of the 4th metal-oxide-semiconductor and second dc source is serially connected.
The voltage of above-mentioned first dc source and second dc source all can be 12 volts.
Above-mentioned first dc source and second dc source all can adopt battery.
Above-mentioned ground signal receiver comprises the ground signal receiving circuit, and this ground signal receiving circuit comprises ground level conversion integrated circuit; The 3rd high potential output termination and the 3rd electronegative potential output termination are arranged on second primary winding coil of ground; The high potential of ground secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The 3rd high potential output termination is serially connected by the positive terminal electricity of the 9th resistance and the tenth resistance and the 3rd dc source, is electrically connected with first signal input part of ground level conversion integrated circuit between the 9th resistance and the tenth resistance; The 3rd electronegative potential output termination is serially connected by the 11 resistance and the 12 resistance and the first earth terminal electricity, is electrically connected with the secondary signal input of ground level conversion integrated circuit between the 11 resistance and the 12 resistance; The underground signal receiver comprises the underground signal receiving circuit, and this underground signal receiving circuit comprises down-hole level conversion integrated circuit; The 4th high potential output termination and the 4th electronegative potential output termination are arranged on second primary winding coil of down-hole; The high potential of down-hole secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The 4th high potential output termination is serially connected by the positive terminal electricity of the 13 resistance and the 14 resistance and the 4th dc source, is electrically connected with first signal input part of down-hole level conversion integrated circuit between the 13 resistance and the 14 resistance; The 4th electronegative potential output termination is serially connected by the 15 resistance and the 16 resistance and the second earth terminal electricity, is electrically connected with the secondary signal input of down-hole level conversion integrated circuit between the 15 resistance and the 16 resistance.
Can be electrically connected with first Zener diode between the lead between the secondary signal input of lead between first signal input part of above-mentioned the 9th resistance and ground level conversion integrated circuit and the 11 resistance and ground level conversion integrated circuit; Be electrically connected with second Zener diode between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
Can be electrically connected with first electric capacity between the lead between the secondary signal input of lead between first signal input part of above-mentioned the 9th resistance and ground level conversion integrated circuit and the 11 resistance and ground level conversion integrated circuit; Be electrically connected with second electric capacity between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
Can be electrically connected with the 17 resistance between the lead between the secondary signal input of lead between first signal input part of above-mentioned the 9th resistance and ground level conversion integrated circuit and the 11 resistance and ground level conversion integrated circuit; Be electrically connected with the 18 resistance between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
The voltage of above-mentioned the 3rd dc source and the 4th dc source all can be 5 volts.
The utility model is rational in infrastructure, and is easy to use, and the cost performance height owing to reduce volume greatly, therefore is fit to oil exploration down-hole instrument and uses very much; Owing to adopt software to realize encoding and decoding, on the basis of not changing circuit, just can realize the communication of various protocols; Owing to improved the integrated level of instrument, therefore reduced the instrument failure rate, be convenient to maintenance.
Four, description of drawings
Accompanying drawing 1 is a system schematic of the present utility model.
Accompanying drawing 2 is the circuit block diagram that ground signal sends in the utility model.
Accompanying drawing 3 is the circuit block diagram that underground signal sends in the utility model.
Accompanying drawing 4 is the circuit block diagram that ground signal receives in the utility model.
Accompanying drawing 5 is the circuit block diagram that underground signal receives in the utility model.
Five, the specific embodiment
The utility model is not subjected to the restriction of following embodiment, can determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Below in conjunction with embodiment and accompanying drawing the utility model is further described:
As shown in Figure 1, this well logging ground and underground signal transmitted in both directions circuit comprise ground communication transformer, underground communica tion transformer, ground signal transmitter, ground signal receiver, underground signal transmitter and underground signal receiver; The ground communication transformer comprises ground first primary winding coil, ground second primary winding coil and ground secondary windings coil, and the underground communica tion transformer comprises down-hole first primary winding coil, down-hole second primary winding coil and down-hole secondary windings coil; Ground secondary windings coil is electrically connected by cable and down-hole secondary windings coil, ground signal transmitter and ground first primary winding coil are electrically connected, underground signal receiver and down-hole second primary winding coil are electrically connected, underground signal transmitter and down-hole first primary winding coil are electrically connected, and ground signal receiver and ground second primary winding coil are electrically connected.
Can according to actual needs above-mentioned well logging ground and underground signal transmitted in both directions circuit be made further optimization and/or improvements:
Shown in accompanying drawing 1,2,3, the ground signal transmitter comprises the ground signal transtation mission circuit; This ground signal transtation mission circuit comprises first metal-oxide-semiconductor and second metal-oxide-semiconductor; Input termination in the middle of first positive pulse signal input termination, first undersuing input termination and first is arranged on first primary winding coil of ground; The high potential of ground secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The grid electricity of first resistance and first metal-oxide-semiconductor is serially connected, the drain electrode of first metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and first dc source in the middle of second resistance and first positive pulse signal input termination, first, and the negative electricity of the source electrode of first metal-oxide-semiconductor and first dc source is serially connected; The grid electricity of the 3rd resistance and second metal-oxide-semiconductor is serially connected, the drain electrode of second metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and first dc source in the middle of the 4th resistance and first undersuing input termination, first, and the negative electricity of the source electrode of second metal-oxide-semiconductor and first dc source is serially connected; The underground signal transmitter comprises the underground signal transtation mission circuit; This underground signal transtation mission circuit comprises the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor; Input termination in the middle of second positive pulse signal input termination, second undersuing input termination and second is arranged on first primary winding coil of down-hole; The high potential of down-hole secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The grid electricity of the 5th resistance and the 3rd metal-oxide-semiconductor is serially connected, the drain electrode of the 3rd metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and second dc source in the middle of the 6th resistance and second positive pulse signal input termination, second, and the negative electricity of the source electrode of the 3rd metal-oxide-semiconductor and second dc source is serially connected; The grid electricity of the 7th resistance and the 4th metal-oxide-semiconductor is serially connected, the drain electrode of the 4th metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and second dc source in the middle of the 8th resistance and second undersuing input termination, second, and the negative electricity of the source electrode of the 4th metal-oxide-semiconductor and second dc source is serially connected.
Shown in accompanying drawing 2,3, the voltage of first dc source and second dc source is 12 volts.
Shown in accompanying drawing 2,3, first dc source and second dc source all adopt battery.
Shown in accompanying drawing 1,4,5, the ground signal receiver comprises the ground signal receiving circuit, and this ground signal receiving circuit comprises ground level conversion integrated circuit; The 3rd high potential output termination and the 3rd electronegative potential output termination are arranged on second primary winding coil of ground; The high potential of ground secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The 3rd high potential output termination is serially connected by the positive terminal electricity of the 9th resistance and the tenth resistance and the 3rd dc source, is electrically connected with first signal input part of ground level conversion integrated circuit between the 9th resistance and the tenth resistance; The 3rd electronegative potential output termination is serially connected by the 11 resistance and the 12 resistance and the first earth terminal electricity, is electrically connected with the secondary signal input of ground level conversion integrated circuit between the 11 resistance and the 12 resistance; The underground signal receiver comprises the underground signal receiving circuit, and this underground signal receiving circuit comprises down-hole level conversion integrated circuit; The 4th high potential output termination and the 4th electronegative potential output termination are arranged on second primary winding coil of down-hole; The high potential of down-hole secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The 4th high potential output termination is serially connected by the positive terminal electricity of the 13 resistance and the 14 resistance and the 4th dc source, is electrically connected with first signal input part of down-hole level conversion integrated circuit between the 13 resistance and the 14 resistance; The 4th electronegative potential output termination is serially connected by the 15 resistance and the 16 resistance and the second earth terminal electricity, is electrically connected with the secondary signal input of down-hole level conversion integrated circuit between the 15 resistance and the 16 resistance.
Shown in accompanying drawing 1,4,5, in order to guarantee the stable of signal, be electrically connected with first Zener diode between the lead between the lead between first signal input part of the 9th resistance and ground level conversion integrated circuit and the secondary signal input of the 11 resistance and ground level conversion integrated circuit; Be electrically connected with second Zener diode between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
Shown in accompanying drawing 1,4,5, in order to guarantee the stable of signal, be electrically connected with first electric capacity between the lead between the lead between first signal input part of the 9th resistance and ground level conversion integrated circuit and the secondary signal input of the 11 resistance and ground level conversion integrated circuit; Be electrically connected with second electric capacity between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
Shown in accompanying drawing 1,4,5, in order to guarantee the stable of signal, be electrically connected with the 17 resistance between the lead between the lead between first signal input part of the 9th resistance and ground level conversion integrated circuit and the secondary signal input of the 11 resistance and ground level conversion integrated circuit; Be electrically connected with the 18 resistance between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
Shown in accompanying drawing 4,5, can be according to actual needs, the voltage of the 3rd dc source and the 4th dc source is 5 volts.
Above technical characterictic has constituted most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
The use of the utility model most preferred embodiment is as follows:
Passing to the down-hole with aboveground data reason is example: at first through the codec on ground, finish the information encoded frame, under the signal control processor control on ground, when coded frame is positive pulse, be added in the grid of first metal-oxide-semiconductor with the form of high impulse as positive pulse control signal P1, the first metal-oxide-semiconductor conducting, become the loop with first positive pulse signal input termination and the first middle input capitiform of ground level transformer primary winding coil, form positive signal, it is 12 volts that the level amplitude of signal is enhanced, and this signal is delivered to logging cable after being coupled by ground level transformer subsequently; When positive pulse control signal P1 is added in the grid of first metal-oxide-semiconductor with the form of low pulse, first metal-oxide-semiconductor by and not conducting.When coded frame is negative pulse, be added in the grid of second metal-oxide-semiconductor with the form of high impulse as negative pulse control signal P2, the second metal-oxide-semiconductor conducting, become the loop with first undersuing input termination and the first middle input capitiform of the elementary winding of ground level transformer, form the negative polarity signal, the level amplitude of signal is enhanced and is-12 volts, and this signal is delivered to logging cable after the ground level transformer coupling; When negative pulse control signal P2 is added in the grid of second metal-oxide-semiconductor with the form of low pulse, second metal-oxide-semiconductor by and not conducting.
Passing to aboveground with downhole data reason is example: at first through the codec of down-hole, finish the information encoded frame, under the signal control processor control of down-hole, when coded frame is positive pulse, be added in the grid of first metal-oxide-semiconductor with the form of high impulse as positive pulse control signal P1, the first metal-oxide-semiconductor conducting, become the loop with second positive pulse signal input termination and the second middle input capitiform of down-hole primary winding coil, form positive signal, it is 12 volts that the level amplitude of signal is enhanced, and this signal is delivered to logging cable by the down-hole after transformer coupled subsequently; When positive pulse control signal P1 is added in the grid of first metal-oxide-semiconductor with the form of low pulse, first metal-oxide-semiconductor by and not conducting.When coded frame is negative pulse, be added in the grid of second metal-oxide-semiconductor with the form of high impulse as negative pulse control signal P2, the second metal-oxide-semiconductor conducting, become the loop with second undersuing input termination and the second middle input capitiform of down-hole primary winding, form the negative polarity signal, the level amplitude of signal is enhanced and is-12 volts, and this signal is delivered to logging cable after the down-hole is transformer coupled; When negative pulse control signal P2 is added in the grid of second metal-oxide-semiconductor with the form of low pulse, second metal-oxide-semiconductor by and not conducting.
From final transmission signal, under send instructions be modulated into the bipolar code signal that meets communications protocol format with upstream data after, through the amplifying circuit of overdriving, the bipolar signal level amplitude of coding circuit output is amplified and is promoted to 12 volts, deliver to logging cable, finish driving cable.
When receiving data, signal converts the analog signal that meets level range to by aboveground level shifting circuit.Like this, just can receive the order that send on ground in real time, receive the upstream data that downhole instrument transmits in real time, thereby can guarantee that data receive (decoding, storage) and handle parallel carrying out with data, it is applicable to the logging system of the half-or full-duplex mode of seven core cable.
Claims (10)
1. log well ground and underground signal transmitted in both directions circuit is characterized in that comprising ground communication transformer, underground communica tion transformer, ground signal transmitter, ground signal receiver, underground signal transmitter and underground signal receiver; The ground communication transformer comprises ground first primary winding coil, ground second primary winding coil and ground secondary windings coil, and the underground communica tion transformer comprises down-hole first primary winding coil, down-hole second primary winding coil and down-hole secondary windings coil; Ground secondary windings coil is electrically connected by cable and down-hole secondary windings coil, ground signal transmitter and ground first primary winding coil are electrically connected, underground signal receiver and down-hole second primary winding coil are electrically connected, underground signal transmitter and down-hole first primary winding coil are electrically connected, and ground signal receiver and ground second primary winding coil are electrically connected.
2. well logging according to claim 1 ground and underground signal transmitted in both directions circuit is characterized in that the ground signal transmitter comprises the ground signal transtation mission circuit; This ground signal transtation mission circuit comprises first metal-oxide-semiconductor and second metal-oxide-semiconductor; Input termination in the middle of first positive pulse signal input termination, first undersuing input termination and first is arranged on first primary winding coil of ground; The high potential of ground secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The grid electricity of first resistance and first metal-oxide-semiconductor is serially connected, the drain electrode of first metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and first dc source in the middle of second resistance and first positive pulse signal input termination, first, and the negative electricity of the source electrode of first metal-oxide-semiconductor and first dc source is serially connected; The grid electricity of the 3rd resistance and second metal-oxide-semiconductor is serially connected, the drain electrode of second metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and first dc source in the middle of the 4th resistance and first undersuing input termination, first, and the negative electricity of the source electrode of second metal-oxide-semiconductor and first dc source is serially connected; The underground signal transmitter comprises the underground signal transtation mission circuit; This underground signal transtation mission circuit comprises the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor; Input termination in the middle of second positive pulse signal input termination, second undersuing input termination and second is arranged on first primary winding coil of down-hole; The high potential of down-hole secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The grid electricity of the 5th resistance and the 3rd metal-oxide-semiconductor is serially connected, the drain electrode of the 3rd metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and second dc source in the middle of the 6th resistance and second positive pulse signal input termination, second, and the negative electricity of the source electrode of the 3rd metal-oxide-semiconductor and second dc source is serially connected; The grid electricity of the 7th resistance and the 4th metal-oxide-semiconductor is serially connected, the drain electrode of the 4th metal-oxide-semiconductor is serially connected by the anodal electricity of the input termination and second dc source in the middle of the 8th resistance and second undersuing input termination, second, and the negative electricity of the source electrode of the 4th metal-oxide-semiconductor and second dc source is serially connected.
3. well logging according to claim 2 ground and underground signal transmitted in both directions circuit is characterized in that the voltage of first dc source and second dc source is 12 volts.
4. according to claim 2 or 3 described well logging ground and underground signal transmitted in both directions circuit, it is characterized in that first dc source and second dc source all adopt battery.
5. according to claim 1 or 2 or 3 described well logging ground and underground signal transmitted in both directions circuit, it is characterized in that the ground signal receiver comprises the ground signal receiving circuit, this ground signal receiving circuit comprises ground level conversion integrated circuit; The 3rd high potential output termination and the 3rd electronegative potential output termination are arranged on second primary winding coil of ground; The high potential of ground secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The 3rd high potential output termination is serially connected by the positive terminal electricity of the 9th resistance and the tenth resistance and the 3rd dc source, is electrically connected with first signal input part of ground level conversion integrated circuit between the 9th resistance and the tenth resistance; The 3rd electronegative potential output termination is serially connected by the 11 resistance and the 12 resistance and the first earth terminal electricity, is electrically connected with the secondary signal input of ground level conversion integrated circuit between the 11 resistance and the 12 resistance; The underground signal receiver comprises the underground signal receiving circuit, and this underground signal receiving circuit comprises down-hole level conversion integrated circuit; The 4th high potential output termination and the 4th electronegative potential output termination are arranged on second primary winding coil of down-hole; The high potential of down-hole secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The 4th high potential output termination is serially connected by the positive terminal electricity of the 13 resistance and the 14 resistance and the 4th dc source, is electrically connected with first signal input part of down-hole level conversion integrated circuit between the 13 resistance and the 14 resistance; The 4th electronegative potential output termination is serially connected by the 15 resistance and the 16 resistance and the second earth terminal electricity, is electrically connected with the secondary signal input of down-hole level conversion integrated circuit between the 15 resistance and the 16 resistance.
6. well logging according to claim 4 ground and underground signal transmitted in both directions circuit is characterized in that the ground signal receiver comprises the ground signal receiving circuit, and this ground signal receiving circuit comprises ground level conversion integrated circuit; The 3rd high potential output termination and the 3rd electronegative potential output termination are arranged on second primary winding coil of ground; The high potential of ground secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The 3rd high potential output termination is serially connected by the positive terminal electricity of the 9th resistance and the tenth resistance and the 3rd dc source, is electrically connected with first signal input part of ground level conversion integrated circuit between the 9th resistance and the tenth resistance; The 3rd electronegative potential output termination is serially connected by the 11 resistance and the 12 resistance and the first earth terminal electricity, is electrically connected with the secondary signal input of ground level conversion integrated circuit between the 11 resistance and the 12 resistance; The underground signal receiver comprises the underground signal receiving circuit, and this underground signal receiving circuit comprises down-hole level conversion integrated circuit; The 4th high potential output termination and the 4th electronegative potential output termination are arranged on second primary winding coil of down-hole; The high potential of down-hole secondary windings coil output termination and electronegative potential output termination are serially connected with the cable core electricity of cable respectively; The 4th high potential output termination is serially connected by the positive terminal electricity of the 13 resistance and the 14 resistance and the 4th dc source, is electrically connected with first signal input part of down-hole level conversion integrated circuit between the 13 resistance and the 14 resistance; The 4th electronegative potential output termination is serially connected by the 15 resistance and the 16 resistance and the second earth terminal electricity, is electrically connected with the secondary signal input of down-hole level conversion integrated circuit between the 15 resistance and the 16 resistance.
7. well logging according to claim 6 ground and underground signal transmitted in both directions circuit is characterized in that being electrically connected with first Zener diode between the lead between the secondary signal input of lead between first signal input part of the 9th resistance and ground level conversion integrated circuit and the 11 resistance and ground level conversion integrated circuit; Be electrically connected with second Zener diode between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
8. well logging according to claim 7 ground and underground signal transmitted in both directions circuit is characterized in that being electrically connected with first electric capacity between the lead between the secondary signal input of lead between first signal input part of the 9th resistance and ground level conversion integrated circuit and the 11 resistance and ground level conversion integrated circuit; Be electrically connected with second electric capacity between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
9. well logging according to claim 8 ground and underground signal transmitted in both directions circuit is characterized in that being electrically connected with the 17 resistance between the lead between the secondary signal input of lead between first signal input part of the 9th resistance and ground level conversion integrated circuit and the 11 resistance and ground level conversion integrated circuit; Be electrically connected with the 18 resistance between the lead between the secondary signal input of lead between first signal input part of the 13 resistance and down-hole level conversion integrated circuit and the 15 resistance and down-hole level conversion integrated circuit.
10. well logging according to claim 9 ground and underground signal transmitted in both directions circuit is characterized in that the voltage of the 3rd dc source and the 4th dc source is 5 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202773507U CN201574750U (en) | 2009-12-29 | 2009-12-29 | Logging ground and downhole signal two-way transmission circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202773507U CN201574750U (en) | 2009-12-29 | 2009-12-29 | Logging ground and downhole signal two-way transmission circuit |
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| CN201574750U true CN201574750U (en) | 2010-09-08 |
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| CN2009202773507U Expired - Lifetime CN201574750U (en) | 2009-12-29 | 2009-12-29 | Logging ground and downhole signal two-way transmission circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105756671A (en) * | 2016-03-17 | 2016-07-13 | 北京金科龙石油技术开发有限公司 | Wireless bidirectional information transmission device for oil-gas well |
| CN106297223A (en) * | 2015-05-13 | 2017-01-04 | 中国石油化工股份有限公司 | Ground signal R-T unit, underground signal R-T unit and data transmission system |
| CN107130956A (en) * | 2016-02-25 | 2017-09-05 | 中国石油化工股份有限公司 | The data transfer measurement apparatus and its data transfer measuring method of a kind of nearly drill bit |
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2009
- 2009-12-29 CN CN2009202773507U patent/CN201574750U/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106297223A (en) * | 2015-05-13 | 2017-01-04 | 中国石油化工股份有限公司 | Ground signal R-T unit, underground signal R-T unit and data transmission system |
| CN106297223B (en) * | 2015-05-13 | 2019-10-08 | 中国石油化工股份有限公司 | Ground signal R-T unit, underground signal R-T unit and data transmission system |
| CN107130956A (en) * | 2016-02-25 | 2017-09-05 | 中国石油化工股份有限公司 | The data transfer measurement apparatus and its data transfer measuring method of a kind of nearly drill bit |
| CN105756671A (en) * | 2016-03-17 | 2016-07-13 | 北京金科龙石油技术开发有限公司 | Wireless bidirectional information transmission device for oil-gas well |
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Effective date of registration: 20190902 Address after: 100120 No. 6 Liupuwei Street, Xicheng District, Beijing Co-patentee after: China National Petroleum Group Logging Co., Ltd. Patentee after: China Petroleum and Natural Gas Group Co., Ltd. Address before: 834000 the Xinjiang Uygur Autonomous Region Karamay City Construction Road No. 9 Patentee before: Well Logging Company of CNPC Western Drilling Engineering Co., Ltd. |
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Granted publication date: 20100908 |
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