CN105756671B - A kind of wireless two-way information carrying means for Oil/gas Well - Google Patents
A kind of wireless two-way information carrying means for Oil/gas Well Download PDFInfo
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- CN105756671B CN105756671B CN201610151839.4A CN201610151839A CN105756671B CN 105756671 B CN105756671 B CN 105756671B CN 201610151839 A CN201610151839 A CN 201610151839A CN 105756671 B CN105756671 B CN 105756671B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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Abstract
A kind of wireless two-way information carrying means for oil gas field well.Described device is made up of nine parts, including ground signal receive and under conduct electricity road, wellhead sealing cover plate, insulating sleeve, wellbore casing, oil pipe, lower isolation connector, the short-circuit pipe nipple of signal feed, underground signal upload and receiving circuit and circuit sealing nacelle.Described device is used as information transmission carrier by the use of existing tubing string in well, realize on well with under-well bi-directional wireless information transfer function, the data that downhole sensor can be gathered are in real time or timing transmission is to ground, the control signal sent by ground installation can also be transferred into underground to control the unlatching, shut-off or operating of downhole sensor.The advantage of the invention is that：Without tripping in cable, construction is simple, and construction cost is low, and the real-time Transmission or time sharing transmissions of ground and down-hole information can be achieved.
Description
Technical field
The present invention relates to the information transmission equipment in oil-gas mining field, and in particular to a kind of for the wireless double of oil gas field well
To information carrying means.
Background technology
Currently in oil, shale gas and coal bed gas water filling and oil recovery, gas recovery well, the number of downhole sensor collection is obtained
Started according to or by sensor of the ground in face of underground and turn off control, typically using two ways, one kind is passed with cable
Defeated signal, i.e., the data transfer gathered downhole sensor by cable to ground, while by control signal by terrestrial transmission to
Underground；Another is the signal transmitting and receiving instrument lifted with steel wire rope, i.e., under steel wire rope lifts signal transmitting and receiving instrument out of oil pipe
It is put into the data that underground reads sensor collection with sensor to fetching.
Recovered the oil generally in oil recovery, gas recovery well, gas production instrument is connected to the tail end of oil pipe, sensor, which is arranged on, to recover the oil, adopts
On gas instrument, injection well downhole flow regulator is also the tail end for being connected to oil pipe in water injection well, and sensor is arranged in injection well downhole flow regulator, so by ground
The signal cable of connection downhole sensor is accomplished by together being lowered into underground with oil pipe when laying, but this operating type is present
Following the problem of：Because cable laying is between oil pipe and sleeve pipe, the cable that cable is transferred in laying task with oil pipe may
With sleeve pipe produce friction and cause cable failure, when especially cable is laid in the larger inclined shaft of hole angle, and cable with
When oil pipe is by the displacement well section of extended reach well, the radius of curvature of horizontal well section and horizontal segment, dragged because cable self gravitation is produced
Hanging down makes it with sleeve friction and causes damaged even by card to be broken.In view of this it is this have cable communicate its operating cost of mode and work
Industry risk is all high.
The data of downhole sensor collection are obtained according to the signal transmitting and receiving instrument of steel wire rope lifting, there is also following several
The problem of aspect：1. the steel wire rope lifting signal transmitting and receiving instrument transferred by ground must could be from sensor to connecting with sensor
Middle reading data, therefore it is not only cumbersome, time-consuming, laborious to operate, and once dock bad data are difficult successfully to read
Go out；2. when the hole angle of oil recovery, gas production and water injection well is more than 45.When, or sensor be located at horizontal well in horizontal segment on when,
It can not almost be operated with steel wire rope lifting signal transmitting and receiving instrument；3. this mode without data real-time Transmission with
And to the real-time controlling of sensor.More than it is several in terms of can be seen that steel wire rope lifting signal transmitting and receiving instrument application by
Very big limitation.
At present in oil, shale gas and coal bed gas water filling and oil recovery gas recovery well also not in the case of without cable by underground
Information uploads to ground and ground control signal is transferred to the transmitted in both directions technology of underground in real time.
The content of the invention
To solve in current oil gas mining environment, the difficulties and problems on well, in terms of downhole data transmission, the present invention is provided
A kind of wireless two-way information carrying means for oil gas field well.Described device is carried by the use of existing tubing string in well as information transmission
Body, is realized with under-well bi-directional wireless information transfer function on well, the data that downhole sensor can be gathered in real time or timing transmission
To ground, the control signal sent by ground installation can also be transferred into underground to control unlatching, the shut-off of downhole sensor
Or operating.
To realize above-mentioned target, the present invention uses following technical scheme：
A kind of wireless two-way information carrying means for oil gas field well.Described device is made up of nine parts, including ground
Face signal receive and under conduct electricity road, wellhead sealing cover plate, insulating sleeve, wellbore casing, oil pipe, lower isolation connector, signal
The short-circuit pipe nipple of feed, underground signal are uploaded and receiving circuit and circuit sealing nacelle.The ground signal receive and under conduct electricity road
It is connected with the wellhead sealing cover plate and wellbore casing, the insulating sleeve is by the wellhead sealing cover plate, oil pipe and well
Jacket casing pipe is dielectrically separated from well head to come, and the lower isolation connector is exhausted by oil pipe and circuit sealing nacelle in the afterbody of oil pipe
Edge is kept apart, and the short-circuit pipe nipple of the signal feed realizes the electrical connection between wellbore casing and circuit sealing nacelle, the well
Lower signal is uploaded and receiving circuit is located inside the circuit sealing nacelle, and is connected by wire with circuit sealing nacelle,
The wellbore casing is separated by the anti-centralizer that reclines of oil pipe between the two in the periphery of the oil pipe.
Described ground signal receive and under conduct electricity routing transformer ,+5V voltage-stabilized power supplies, signal transmitting controlled with receiving
Device, power amplifier, small signal amplifier, traffic filter, signal shaper and signal isolator composition.The signal isolation
Device is made up of a magnet ring and three groups of coils being wound on magnet ring, and first group is input/output coil, and second group is that signal is inputted
Coil, the 3rd group is signal output coil.The material of the magnet ring is ferrite or permalloy.One end of the transformer connects
Outside power frequency supply is connect, the other end is connected with+5V the voltage-stabilized power supplies；One end of+5V the voltage-stabilized power supplies and the transformation
Device is connected, and the other end is connected with described signal transmission and reception controller；The signal transmission and reception controller
One end is connected with+5V the voltage-stabilized power supplies and the signal shaper respectively, and the other end is connected with described power amplifier
Connect；One end of the power amplifier is connected with described signal transmission and reception controller, the other end and the signal every
Signal output coil from device is connected；One end of the signal shaper is connected with described signal transmission and reception controller
Connect, the other end is connected with the traffic filter；One end of the traffic filter is connected with described signal shaper,
The other end is connected with the small signal amplifier；One end of the small signal amplifier is connected with described traffic filter
Connect, the other end is connected with the signal input line circle of the signal isolator；The signal input line circle of the signal isolator
One end is connected with the small signal amplifier, other end ground connection；One end of the signal output coil of the signal isolator with
The power amplifier is connected, other end ground connection；One end of the input/output coil of the signal isolator and signal are defeated
Enter/output line is connected, the other end is connected with signal ground.
Have well head ground connection pin on the wellhead sealing cover plate, for connect the ground signal receive and under conduct electricity road
Export ground wire.
There is a ground signal thread casing connecting pin upper end of the wellbore casing, to connect the ground signal receive and
Under conduct electricity the signal input/output line on road.
Some oil pipes anti-centralizer that reclines is installed, its effect is to avoid oil pipe and the shaft sleeve in the middle part of the oil pipe
Pipe is come in contact, and the anti-centralizer that reclines is made of rubber type of material；There are a circuit cabin and oil pipe in the tail end of oil pipe
Ground link steady pin, it, which is acted on, is connected with the ground wire of the ground wire sealing-plug extraction of the circuit nacelle.
The lower isolation connector is constituted by being dielectrically separated from pipe nipple, insulating centralizer and connecting short section, described to be dielectrically separated from
Pipe nipple is made of fiberglass or other high-strength insulating materials, and the insulating centralizer is made of rubber type of material.
The short-circuit pipe nipple of the signal feed is made up of the short-circuit pipe nipple of feed and feed short-circuit spring frame.
The underground signal is uploaded and receiving circuit is by controller, power amplifier, two-way signaling isolator, signal shaping
Device, traffic filter, small signal amplifier and+5V batteries composition.+ 5V the batteries are connected with each functional module, are it
Electric energy is provided；The controller is the core of whole circuit, is filled the post of by single-chip microcomputer.The signal isolator is by a magnet ring and coiling
Three groups of coils on magnet ring are constituted, and first group is input/output coil, and second group is signal input line circle, and the 3rd group is letter
Number output winding.The material of the magnet ring is ferrite or permalloy.One end of the controller respectively with sensor control
Line is connected with sensor data cable, and the other end is connected with the power amplifier and signal shaper respectively；The power
One end of amplifier is connected with the controller, and the other end is connected with the signal output coil of the signal isolator；Institute
The one end for stating the signal output coil of signal isolator is connected with the power amplifier, other end ground connection；The signal is whole
One end of shape device is connected with the controller, and the other end is connected with the traffic filter；The one of the traffic filter
End is connected with the signal shaper, and the other end is connected with the small signal amplifier；The one of the small signal amplifier
End is connected with the traffic filter, and the other end is connected with the signal input line circle of the signal isolator；The signal
One end of the signal input line circle of isolator is connected with the small signal amplifier, other end ground connection；The signal isolator
One end of input/output coil be connected with signal input/output line, the other end is connected with signal ground.
The electric circuit in well nacelle is by circuit cabin body, circuit cabin capsul, ground wire sealing-plug.
A kind of wireless two-way information carrying means for oil gas field well, its signal transmission passage is made up of two parts, and one
Part is transmission channel, and another part is ground wire.The transmission channel include the ground signal receive and under conduct electricity the letter on road
The short-circuit pipe nipple of number input/output line, wellbore casing, signal feed, circuit nacelle, the underground signal are uploaded and receiving circuit
Signal input/output line.The ground signal receive and under conduct electricity road signal input/output line and the wellbore casing upper end
Ground signal pipeline sleeve pipe connection pin be connected, the inwall of the wellbore casing underground part and signal feed short circuit
The spring(-supported) mount of pipe nipple is realized by elastic pressure and made electrical contact with；The short-circuit pipe nipple of the signal feed is connected in the circuit nacelle,
The underground signal is uploaded and the signal input/output line of receiving circuit is connected with described circuit nacelle, thus constitute from
Ground signal receive and under conduct electricity road to underground signal upload and receiving circuit signal transmission line.The ground wire includes well head
Cover plate, the wellhead equipment being connected with oil pipe, oil pipe, the circuit cabin of oil pipe tail end and oil pipe ground wire steady pin and positioned at described
Ground wire sealing-plug in circuit nacelle.The well head cover plate is the earth plate of system, it receive with the ground signal and under
The conduct electricity ground wire on road, wellhead equipment is connected with oil pipe, is formed altogether；The oil pipe passes through the circuit cabin of its tail end and oil pipe
Ground wire steady pin is connected with the ground wire that the ground wire sealing-plug in the circuit nacelle is drawn, so as to by circuit cabin and be located at
The underground signal therein is uploaded and receiving circuit ground connection.
A kind of wireless two-way information carrying means for oil gas field well, its course of work is：
1）Instruction is sent：First, the ground signal receive and under the signal transmission and reception controller root that conducts electricity in road
According to the mode of operation of downhole sensor, produce control coding, and will control coded modulation be carrier signal, carrier frequency exists
1KHz-100KHz, the carrier signal modulated is input to the power amplifier, and the signal after power amplification is input to described
In the signal output coil of signal isolator, signal is coupled on the input/output coil under the mutual inductance effect of magnetic core；So
Afterwards, the signal exported as the input/output coil is logical by signal transmission described in described signal input/output line feed-in
Road.
2）Command signal is transmitted：First, by the ground signal receive and under conduct electricity the command signal that road sends, pass through institute
The signal input/output line stated, is connected to the ground signal pipeline sleeve pipe connection pin of the wellbore casing upper end；Secondly, refer to
Underground part of the signal along the wellbore casing is made, by the short-circuit pipe nipple of the signal feed, the circuit nacelle is delivered to；
Again, command signal is delivered to the letter of the underground signal upload and receiving circuit by the wire being connected in circuit nacelle
Number input/output line.
3）Command signal is received and processing：First, from underground signal upload and the signal input/output of receiving circuit
The incoming command signal of line is sent to the signal input/output terminal of the signal isolator；Secondly, the command signal is through the letter
The input/output coil of number isolator is coupled on the signal input line circle, and is fed into the small signal amplifier；Again
Secondary, command signal is sent into the controller after being handled through the traffic filter and the signal shaper and signal is solved
Adjust and recover the instruction of subsurface biography；Finally, the controller is controlled operation to downhole sensor according to instruction, with true
The data acquisition and data for determining downhole sensor are uploaded.
4）Data are sent：First, uploaded by the underground signal and data-signal that receiving circuit is sent, by described
Signal input/output line is connected in the circuit nacelle；Secondly, data-signal is passed by the short-circuit pipe nipple of the signal feed
It is delivered on the wellbore casing；Again, data signal transmission connects to the ground signal conveying thread casing of the wellbore casing upper end
Pin；Finally, data-signal by described signal input/output line be transferred to the ground signal receive and under conduct electricity road.
5）Data signal reception and processing：First, the data-signal that ground is uploaded to from underground is connect by the ground signal
Receive and under conduct electricity road signal input/output line enter the signal isolator input/output coil；Secondly, data-signal
Through Mutual Inductance Coupling to the signal input line circle, and it is fed into the small signal amplifier；Again, data-signal is through the signal
The signal transmission and reception controller is sent into after wave filter, signal shaper processing；It is last to launch in the signal with receiving
Recovery data are demodulated to the downhole sensor signal of reception in controller, and the data storage recovered is waited into electricity at any time
The reading of brain.
The command signal both can be with time sharing transmissions with data-signal, can also simultaneous transmission.
The advantages of the present invention are：
1）Using existing tubing string in well as signal transport vehicle, without tripping in cable, construction is simple, and construction cost is low；
2）The real-time Transmission or time sharing transmissions of ground and down-hole information can be achieved.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a kind of wireless two-way information carrying means pie graph for oil gas field well of the present invention.
In figure, A be ground signal receive and under conduct electricity road, B is wellhead sealing cover plate, and C is insulating sleeve, and D is pit shaft
Sleeve pipe, E is oil pipe, and F is lower isolation connector, and G is the short-circuit pipe nipple of signal feed, and H is that underground signal is uploaded and receiving circuit, I
It is sealing cabin.
Fig. 2 be ground signal of the present invention receive and under pass circuit structure diagram.
In figure, A0 is ground power-frequency voltage input, and A1 is transformer, and A2 is+5V voltage-stabilized power supplies, and A3 is signal transmitting with connecing
Admission controller, A4 is power amplifier, and A5 is signal shaper, and A6 is traffic filter, and A7 small signal amplifiers, A8 is signal
Isolator, A8-1 is signal input/output coil, and A8-2 is signal input line circle, and A8-3 is signal output coil, and A9 is letter
Number input/output line, A10 is ground connection.
Fig. 3 is that underground signal of the present invention is uploaded and receiving circuit structure chart.
In figure, H0 is sensor control signal line, and H1 is sensor data signal line, and H2 is controller, and H3 is that power is put
Big device, H4 is signal shaper, and H5 is traffic filter, and H6 is small signal amplifier, and H7 is two-way signaling isolator, and H7-1 is
Signal input/output coil, H7-2 is signal input line circle, and H7-3 is signal output coil, and H8 is+5V batteries, and H9 is letter
Number input/output line, H10 is ground connection.
Fig. 4 is wellbore casing structure chart of the present invention.
In figure, D1 is ground signal pipeline sleeve pipe connection pin, and D2 is casing pipe.
Fig. 5 is vitta structure figure of the present invention.
In figure, B1 is well head ground connection pin, and E1 is the anti-centralizer that reclines of oil pipe, and E2 is that circuit cabin is fixed with oil pipe ground link
Pin.
Fig. 6 is lower isolation connector construction figure of the present invention.
In figure, F1 is to be dielectrically separated from pipe nipple, and F2 is insulating centralizer, and F3 is connecting short section.
Fig. 7 is insulating sleeve schematic diagram of the present invention.
Fig. 8 is electric circuit in well nacelle schematic diagram of the present invention.
In figure, I1 is circuit cabin body, and I2 is circuit cabin capsul, and H is that underground signal is uploaded and receiving circuit, and I3 is to connect
Ground wire sealing-plug.
Fig. 9 is the short-circuit pipe nipple structure chart of signal feed of the present invention.
In figure, G1 is the short-circuit pipe nipple of feed, and G2 is feed short-circuit spring frame.
Embodiment
Embodiment 1
A kind of wireless two-way information carrying means for oil gas field well.Described device is made up of nine parts, including ground
Face signal receive and under conduct electricity road A, wellhead sealing cover plate B, insulating sleeve C, wellbore casing D, oil pipe E, lower isolation connector
The short-circuit pipe nipple G of F, signal feed, underground signal are uploaded and receiving circuit H and circuit sealing nacelle I.The ground signal receive and
Under the road A that conducts electricity be connected with the wellhead sealing cover plate B and wellbore casing D, the insulating sleeve C is by the wellhead sealing lid
Plate B, oil pipe E and wellbore casing D are dielectrically separated from well head and come, the lower isolation connector F oil pipe E afterbody by oil pipe
E is dielectrically separated from circuit sealing nacelle I and come, and the signal feed short circuit pipe nipple G realizes wellbore casing D and circuit sealing nacelle
Electrical connection between I, the underground signal is uploaded and receiving circuit H is located inside the circuit sealing nacelle I, and passes through signal
Input/output line H8 is connected with circuit sealing nacelle I, and the wellbore casing D leads between the two in the periphery of the oil pipe E
The anti-centralizer E1 that reclines of oil pipe is crossed to separate.
Described ground signal receive and under conduct electricity road A by transformer A1 ,+5V voltage-stabilized power supplies A2, signal transmitting with receiving
Controller A3, power amplifier A4, signal shaper A5, traffic filter A6, small signal amplifier A7 and signal isolator A8
Composition.The signal isolator A8 is made up of a magnet ring and three groups of coils being wound on magnet ring, and first group is input/output line
A8-1 is enclosed, second group is signal input line circle A8-2, and the 3rd group is signal output coil A8-3.The material of the magnet ring is iron oxygen
Body or permalloy.The outside power frequency supply A0 of one end connection of the transformer A1, the other end and the+5V voltage-stabilized power supplies A2 phases
Connection；One end of+5V voltage-stabilized power supplies the A2 is connected with the transformer A1, and the other end is with described signal transmitting with receiving
Controller A3 is connected；One end of the signal transmission and reception controller A3 respectively with the+5V voltage-stabilized power supplies A2 and described
Signal shaper A5 is connected, and the other end is connected with described power amplifier A4；One end of the power amplifier A4 with
Described signal transmission and reception controller A3 is connected, the signal output coil A8-3 of the other end and the signal isolator A8
It is connected；One end of the signal shaper A5 is connected with described signal transmission and reception controller A3, the other end and institute
Traffic filter A6 is stated to be connected；One end of the traffic filter A6 is connected with described signal shaper A5, the other end
It is connected with the small signal amplifier A7；One end of the small signal amplifier A7 is connected with described traffic filter A6
Connect, the other end is connected with the signal input line circle A8-2 of the signal isolator A8；The signal of the signal isolator A8 is defeated
The one end for entering loop A 8-2 is connected with the small signal amplifier A7, other end ground connection A10；The letter of the signal isolator A8
Number output winding A8-3 one end is connected with the power amplifier A4, other end ground connection A10；The signal isolator A8's
Input/output coil A8-1 one end is connected with signal input/output line A9, and the other end is connected with signal ground A10.
Have well head ground connection pin B1 on the wellhead sealing cover plate B, for connect the ground signal receive and under conduct electricity
The output ground wire A10 on road.
There is a ground signal thread casing connecting pin D1 upper end of the wellbore casing D, is connect to connect the ground signal
Receive and under conduct electricity the signal input/output line A9 on road.
Some oil pipes anti-centralizer E1 that reclines is installed, its effect is to avoid oil pipe E and the well in the middle part of the oil pipe E
Jacket casing pipe D is come in contact, and the anti-centralizer E1 that reclines is made of rubber type of material；There is a circuit in oil pipe E tail end
Cabin and oil pipe ground link steady pin E2, it is the ground wire phase drawn with the ground wire sealing-plug I3 of the circuit nacelle I that it, which is acted on,
Connection.
The lower isolation connector F is constituted by being dielectrically separated from pipe nipple F1, insulating centralizer F2 and connecting short section F3, described exhausted
Edge isolation pipe nipple F1 is made of fiberglass or other high-strength insulating materials, and the insulating centralizer F2 uses rubber type of material
It is made.
The signal feed short circuit pipe nipple G is constituted by feeding short circuit pipe nipple G1 and feed short-circuit spring frame G2.
The underground signal is uploaded and receiving circuit H is by controller H2, power amplifier H3, signal shaper H4, signal
Wave filter H5, small signal amplifier H6, two-way signaling isolator H7 and+5V batteries H8 compositions.+ 5V batteries the H8 and each function
Module has connection, and electric energy is provided for it；The controller H2 is the core of whole circuit, by the single-chip microcomputer of DSPIC3XF series
Fill the post of.The two-way signaling isolator H7 is made up of a magnet ring and three groups of coils being wound on magnet ring, and first group is input/defeated
Go out coil H7-1, second group is signal input line circle H7-2, and the 3rd group is signal output coil H7-3.The material of the magnet ring is
Ferrite or permalloy.One end of the controller H2 is connected with sensor control lines H0 and sensor data cable H1 respectively
Connect, the other end is connected with the power amplifier H3 and signal shaper H4 respectively；One end of the power amplifier H3 with
The controller H2 is connected, and the other end is connected with the signal output coil H7-3 of the two-way signaling isolator H7；It is described
Two-way signaling isolator H7 signal output coil H7-3 one end is connected with the power amplifier H3, other end ground connection
H10；One end of the signal shaper H4 is connected with the controller H2, and the other end is connected with the traffic filter H5
Connect；One end of the traffic filter H5 is connected with the signal shaper H4, the other end and the small signal amplifier H6
It is connected；One end of the small signal amplifier H6 is connected with the traffic filter H5, the other end and the two-way signaling
The signal input line circle H7-2 of isolator is connected；The signal input line circle H7-2 of two-way signaling isolator one end and institute
State small signal amplifier H6 to be connected, other end ground connection H10；The one of the input/output coil H1 of the two-way signaling isolator
End is connected with signal input/output line H9, and the other end is connected H10 with signal ground.
The electric circuit in well nacelle I is made up of circuit cabin body I1, circuit cabin capsul I2, ground wire sealing-plug I3.
A kind of wireless two-way information carrying means for oil gas field well, its signal transmission passage is made up of two parts, and one
Part is transmission channel, and another part is ground wire.The transmission channel include the ground signal receive and under conduct electricity road A letter
The short-circuit pipe nipple G of number input/output line A9, wellbore casing D, signal feed, circuit nacelle I, the underground signal are uploaded and received
Circuit H signal input/output line H9.The ground signal receive and under conduct electricity road A signal input/output line A9 with it is described
The ground signal pipeline sleeve pipe connection pin D1 of wellbore casing D upper ends is connected, the inwall of the wellbore casing D underground parts with
The short-circuit pipe nipple G of signal feed spring(-supported) mount G2 is realized by elastic pressure to be made electrical contact with；The short-circuit pipe nipple G of the signal feed connects
It is connected on the circuit nacelle I, the underground signal upload and receiving circuit H signal input/output line H9 and described electricity
Road nacelle I is connected, thus constitute from ground signal receive and under conduct electricity road A to underground signal upload and receiving circuit H letter
Number transmission channel.The ground wire includes well head cover plate B, the wellhead equipment being connected with oil pipe, oil pipe E, the circuit cabin of oil pipe E tail ends
Ground wire sealing-plug I3 with oil pipe ground wire steady pin E2 and on the circuit nacelle I.The well head cover plate B is to be
The earth plate of system, it receive with the ground signal and under conduct electricity road A ground wire A10, wellhead equipment and oil pipe E be connected,
Formed altogether；The oil pipe E is by the circuit cabin of its tail end with oil pipe ground wire steady pin E2 with connecing on the circuit nacelle I
The ground wire H10 that ground wire sealing-plug I3 is drawn is connected, so as to upload and connect circuit cabin I and the underground signal being located therein
Receive circuit H ground connection.
A kind of wireless two-way information carrying means for oil gas field well, its course of work is：
1）Instruction is sent：First, the ground signal receive and under the signal transmission and reception controller A3 that conducts electricity in the A of road
According to the mode of operation of downhole sensor, produce control coding, and will control coded modulation be carrier signal, carrier frequency exists
1KHz-100KHz, the carrier signal modulated is input to the power amplifier A4, and the signal after power amplification is input to institute
State in signal isolator A8 signal output coil A8-3, signal is coupled to the input/output under the mutual inductance effect of magnetic core
On loop A 8-1；Then, described signal input/output line A9 is passed through by the input/output coil A8-1 signals exported
Signal transmission channel described in feed-in.
2）Command signal is transmitted：First, by the ground signal receive and under conduct electricity the command signal that road A sends, pass through
Described signal input/output line A9, is connected to the ground signal pipeline sleeve pipe connection pin D1 of the wellbore casing D upper ends；
Secondly, underground part of the command signal along the wellbore casing D, by the short-circuit pipe nipple G of the signal feed, is delivered to described
Circuit nacelle I；Again, command signal is delivered to the underground signal and is uploaded and connect by the wire being connected on circuit nacelle I
Receive circuit H signal input/output line H9.
3）Command signal is received and processing：First, from the underground signal upload and receiving circuit H signal input/it is defeated
Command signal incoming outlet H9 is sent to the signal input/output terminal H7-1 of the two-way signaling isolator H7；Secondly, this refers to
Input/output coil H7-1 of the signal through the two-way signaling isolator H7 is made to be coupled on the signal input line circle H7-2,
And it is fed into the small signal amplifier H6；Again, command signal is through the traffic filter H5 and signal shaper H4
The instruction for being demodulated and recovering subsurface biography in the controller H2 to signal is sent into after processing；Finally, the controller
H2 is controlled operation to downhole sensor according to instruction, is uploaded with the data acquisition and data that determine downhole sensor.
4）Data are sent：First, uploaded by the underground signal and data-signal that receiving circuit H is sent, by described
Signal input/output line H9 be connected on the circuit nacelle I；Secondly, data-signal is short by the signal feed short circuit
G is saved, is delivered on the wellbore casing D；Again, data signal transmission is conveyed to the ground signal of the wellbore casing D upper ends
Thread casing connecting pin D1；Finally, data-signal is transferred to the ground signal by described signal input/output line A9 and received
And under conduct electricity road A.
5）Data signal reception and processing：First, the data-signal that ground is uploaded to from underground is connect by the ground signal
Receive and under conduct electricity road A signal input/output line A9 enter the signal isolator A8 input/output coil A8-1；Secondly,
Data-signal, to the signal input line circle A8-2, and is fed into the small signal amplifier A7 through Mutual Inductance Coupling；Again, data
Signal sends into the signal transmission and reception controller A3 after being handled through the traffic filter A6, signal shaper A5；Finally
Recovery data are demodulated to the downhole sensor signal of reception in the signal transmission and reception controller A3, and will be recovered
The data storage gone out waits the reading of computer at any time.
The command signal both can be with time sharing transmissions with data-signal, can also simultaneous transmission.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the field, it can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
Among the obvious changes or variations of stretching is still in protection scope of the present invention.
Claims (8)
1. a kind of wireless two-way information carrying means for oil gas field well, it is characterised in that：Described device is by nine part groups
Into, including ground signal receive and under conduct electricity road, wellhead sealing cover plate, insulating sleeve, wellbore casing, oil pipe, lower isolation connect
The short-circuit pipe nipple of device, signal feed, underground signal is connect to upload and receiving circuit and circuit sealing nacelle；The ground signal receive and
Under the road that conducts electricity be connected with the wellhead sealing cover plate and wellbore casing, the insulating sleeve by the wellhead sealing cover plate,
Oil pipe and wellbore casing are dielectrically separated from well head to come, and the lower isolation connector is close with circuit by oil pipe in the afterbody of oil pipe
Batten down body, which is dielectrically separated from, to come, and the short-circuit pipe nipple of the signal feed realizes being electrically connected between wellbore casing and circuit sealing nacelle
Connect, the underground signal is uploaded and receiving circuit is located inside the circuit sealing nacelle, and passes through wire and circuit sealing cabin
Body phase is connected, and the wellbore casing is separated by the anti-centralizer that reclines of oil pipe between the two in the periphery of the oil pipe；
Described ground signal receive and under conduct electricity routing transformer ,+5V voltage-stabilized power supplies, signal transmission and reception controller, work(
Rate amplifier, small signal amplifier, traffic filter, signal shaper and signal isolator composition；The signal isolator by
One magnet ring and three groups of coils being wound on magnet ring are constituted, and first group is input/output coil, and second group is signal input line
Circle, the 3rd group is signal output coil, and the material of the magnet ring is ferrite or permalloy；One end connection of the transformer
Outside power frequency supply, the other end is connected with+5V the voltage-stabilized power supplies；One end of+5V the voltage-stabilized power supplies and the transformer
It is connected, the other end is connected with described signal transmission and reception controller；The one of the signal transmission and reception controller
End is connected with+5V the voltage-stabilized power supplies and the signal shaper respectively, and the other end is connected with described power amplifier；
One end of the power amplifier is connected with described signal transmission and reception controller, the other end and the signal isolator
Signal output coil be connected；One end of the signal shaper is connected with described signal transmission and reception controller,
The other end is connected with the traffic filter；One end of the traffic filter is connected with described signal shaper, separately
One end is connected with the small signal amplifier；One end of the small signal amplifier is connected with described traffic filter,
The other end is connected with the signal input line circle of the signal isolator；One end of the signal input line circle of the signal isolator
It is connected with the small signal amplifier, other end ground connection；One end of the signal output coil of the signal isolator with it is described
Power amplifier is connected, other end ground connection；One end of the input/output coil of the signal isolator and signal input/and it is defeated
Outlet is connected, and the other end is connected with signal ground.
2. a kind of wireless two-way information carrying means for oil gas field well as claimed in claim 1, it is characterised in that：It is described
Have well head ground connection pin on wellhead sealing cover plate, for connect the ground signal receive and under conduct electricity the output ground wire on road；Institute
Stating the upper end of wellbore casing has a ground signal thread casing connecting pin, to connect the ground signal receive and under conduct electricity road
Signal input/output line；Some oil pipes anti-centralizer that reclines is installed, its effect is to avoid oil pipe and institute in the middle part of the oil pipe
State wellbore casing to come in contact, the anti-centralizer that reclines is made of rubber type of material；There is a circuit in the tail end of oil pipe
Sealing cabin and oil pipe ground link steady pin, it is the ground drawn with the ground wire sealing-plug of the circuit sealing nacelle that it, which is acted on,
Line is connected.
3. a kind of wireless two-way information carrying means for oil gas field well as claimed in claim 1, it is characterised in that：It is described
Lower isolation connector is constituted by being dielectrically separated from pipe nipple, insulating centralizer and connecting short section, and the pipe nipple that is dielectrically separated from uses glass
Steel or other insulating materials are made, and the insulating centralizer is made of rubber type of material.
4. a kind of wireless two-way information carrying means for oil gas field well as claimed in claim 1, it is characterised in that：It is described
Signal feed short circuit pipe nipple is made up of the short-circuit pipe nipple of feed and feed short-circuit spring frame.
5. a kind of wireless two-way information carrying means for oil gas field well as claimed in claim 1, it is characterised in that：Underground
Signal is uploaded and receiving circuit is by controller, power amplifier, two-way signaling isolator, signal shaper, traffic filter, small
Signal amplifier and+5V battery packs are constituted；+ 5V battery packs are connected with each functional module, and electric energy is provided for it；Controller is
The core of whole circuit, is filled the post of by single-chip microcomputer；Signal isolator is made up of a magnet ring and three groups of coils being wound on magnet ring, the
One group is input/output coil, and second group is signal input line circle, and the 3rd group is signal output coil, and the material of magnet ring is iron
Oxysome or permalloy；One end of controller is connected with sensor control lines and sensor data cable respectively, other end difference
It is connected with power amplifier and signal shaper；One end of power amplifier is connected with controller, the other end and signal every
Signal output coil from device is connected；One end of the signal output coil of signal isolator is connected with power amplifier, separately
One end is grounded；One end of signal shaper is connected with controller, and the other end is connected with traffic filter；Traffic filter
One end is connected with signal shaper, and the other end is connected with small signal amplifier；Filtered with signal one end of small signal amplifier
Ripple device is connected, and the other end is connected with the signal input line circle of signal isolator；The signal input line circle of signal isolator
One end is connected with small signal amplifier, other end ground connection；One end of the input/output coil of signal isolator and signal are defeated
Enter/output line is connected, the other end is connected with signal ground；Circuit sealing nacelle by circuit cabin body, circuit cabin capsul,
Ground wire sealing-plug is constituted.
6. a kind of wireless two-way information carrying means for oil gas field well as claimed in claim 1, it is characterised in that：It is described
The signal transmission passage of device is made up of two parts, and a part is transmission channel, and another part is ground wire；The transmission channel bag
Include the ground signal receive and under conduct electricity signal input/output line, wellbore casing, the short-circuit pipe nipple of signal feed, the circuit on road
The signal input/output line of sealing cabin, underground signal upload and receiving circuit；The ground signal receive and under conduct electricity
The signal input/output line on road is connected with the ground signal pipeline sleeve pipe connection pin of the wellbore casing upper end, the well
The spring(-supported) mount of the inwall of jacket casing pipe underground part and the short-circuit pipe nipple of the signal feed is realized by elastic pressure to be made electrical contact with；It is described
Signal feed short circuit pipe nipple is connected in the circuit sealing nacelle, and the underground signal is uploaded and the signal of receiving circuit is defeated
Enter/output line is connected with described circuit sealing nacelle so that constitute from ground signal receive and under conduct electricity road to underground letter
Number upload and receiving circuit signal transmission line；The ground wire includes well head cover plate, the wellhead equipment being connected with oil pipe, oil
Pipe, the circuit cabin of oil pipe tail end and oil pipe ground wire steady pin and the ground connection linear sealing in the circuit sealing nacelle
Plug；The well head cover plate is the earth plate of system, it receive with the ground signal and under conduct electricity ground wire, the wellhead equipment on road
It is connected with oil pipe, is formed altogether；The oil pipe is by the circuit cabin of its tail end with oil pipe ground wire steady pin with the circuit
The ground wire that ground wire sealing-plug on sealing cabin is drawn is connected, so that by circuit cabin and the underground signal being located therein
Upload and receiving circuit ground connection.
7. a kind of wireless two-way information carrying means for oil gas field well as claimed in claim 1, it is characterised in that described
The course of work of device is：
1) instruction is sent：First, ground signal receive and under the signal transmission and reception controller that conducts electricity in road passed according to underground
The mode of operation of sensor, produce control coding, and will control coded modulation be carrier signal, carrier frequency in 1KHz-100KHz,
The carrier signal modulated is input to power amplifier, and the signal after power amplification is input to the signal output of signal isolator
In coil, signal is coupled on input/output coil under the mutual inductance effect of magnetic core；Then, exported by input/output coil
Signal passes through signal input/output line FD feed Transfer pipe；
2) command signal is transmitted：First, by ground signal receive and under conduct electricity the command signal that road sends, inputted by signal/
Output line, is connected to the ground signal pipeline sleeve pipe connection pin of wellbore casing upper end；Secondly, command signal is along wellbore casing
Underground part, by the short-circuit pipe nipple of signal feed, be delivered to circuit sealing nacelle；Again, command signal is by being connected to electricity
Wire on the sealing cabin of road, is delivered to the signal input/output line of underground signal upload and receiving circuit；
3) command signal is received and processing：First, uploaded from underground signal and the signal input/output line of receiving circuit is incoming
Command signal is sent to the signal input/output terminal of signal isolator；Next, input of the command signal through signal isolator/
Output winding is coupled on signal input line circle, and is fed into small signal amplifier；Again, command signal through traffic filter and
It is demodulated and recovers the instruction of subsurface biography after signal shaper processing in feeding controller to signal；Finally, controller
Operation is controlled to downhole sensor according to instruction, uploaded with the data acquisition and data that determine downhole sensor；
4) data are sent：First, the data-signal sent by underground signal upload and receiving circuit, passes through signal input/output
Line is connected in circuit sealing nacelle；Secondly, data-signal is delivered on wellbore casing by the short-circuit pipe nipple of signal feed；Again
It is secondary, the ground signal pipeline sleeve pipe connection pin of data signal transmission to wellbore casing upper end；Finally, data-signal passes through signal
Input/output line be transferred to ground signal receive and under conduct electricity road；
5) data signal reception and processing：First, uploaded to from underground the data-signal on ground by ground signal receive and under pass
The input/output coil of the signal input/output line entering signal isolator of circuit；Secondly, data-signal is arrived through Mutual Inductance Coupling
Signal input line circle, and it is fed into small signal amplifier；Again, data-signal is after traffic filter, signal shaper processing
Send into signal transmission and reception controller；Finally the downhole sensor signal of reception is entered in signal transmission and reception controller
Row demodulation recovers data, and the data storage recovered is waited to the reading of computer at any time.
8. a kind of wireless two-way information carrying means for oil gas field well as described in claim 1-7 is any, its feature exists
In：Command signal both can be with time sharing transmissions with data-signal, can also simultaneous transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610151839.4A CN105756671B (en) | 2016-03-17 | 2016-03-17 | A kind of wireless two-way information carrying means for Oil/gas Well |
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| CN201610151839.4A CN105756671B (en) | 2016-03-17 | 2016-03-17 | A kind of wireless two-way information carrying means for Oil/gas Well |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| IT201600074309A1 (en) * | 2016-07-15 | 2018-01-15 | Eni Spa | CABLELESS BIDIRECTIONAL DATA TRANSMISSION SYSTEM IN A WELL FOR THE EXTRACTION OF FORMATION FLUIDS. |
| CN108708712A (en) * | 2018-04-08 | 2018-10-26 | 阜新市石油工具厂 | A kind of communication modulation process method of oil pipe and casing composition |
| CN111510177B (en) * | 2020-04-23 | 2020-12-22 | 中国科学院地质与地球物理研究所 | Downhole tool, signal transmission system and signal transmission method |
| CN113266343B (en) * | 2021-06-29 | 2022-04-01 | 华中科技大学 | Wireless signal transmission system |
| CN114526064A (en) * | 2022-04-21 | 2022-05-24 | 西南石油大学 | Two-way wireless electromagnetic transmission device and method for cased well ground signal |
| CN115664053B (en) * | 2022-12-27 | 2023-05-16 | 中国石油天然气股份有限公司 | Underground electric energy and signal wireless transmission method and device based on electromagnetic coupling |
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| US4839644A (en) * | 1987-06-10 | 1989-06-13 | Schlumberger Technology Corp. | System and method for communicating signals in a cased borehole having tubing |
| EP1250514B1 (en) * | 2000-01-24 | 2005-04-06 | Shell Internationale Researchmaatschappij B.V. | Downhole wireless two-way telemetry system |
| US7114561B2 (en) * | 2000-01-24 | 2006-10-03 | Shell Oil Company | Wireless communication using well casing |
| US6536522B2 (en) * | 2000-02-22 | 2003-03-25 | Weatherford/Lamb, Inc. | Artificial lift apparatus with automated monitoring characteristics |
| WO2002063341A1 (en) * | 2001-02-02 | 2002-08-15 | Dbi Corporation | Downhole telemetry and control system |
| WO2008031021A2 (en) * | 2006-09-08 | 2008-03-13 | Chevron U.S.A., Inc. | A telemetry apparatus and method for monitoring a borehole |
| CN201574750U (en) * | 2009-12-29 | 2010-09-08 | 中国石油集团西部钻探工程有限公司测井公司 | Logging ground and downhole signal two-way transmission circuit |
| CN102134992B (en) * | 2010-01-27 | 2013-10-23 | 罗仁泽 | High-speed wired duplex communication method and device for information between well and ground |
| CN202645545U (en) * | 2012-06-12 | 2013-01-02 | 中国石油天然气集团公司 | Downhole two-way data transmission system |
| CN104747174A (en) * | 2013-12-31 | 2015-07-01 | 中国石油化工集团公司 | Double-flow drill pipe signal transmission system |
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