CN209875148U - While-drilling equipment signal downloading system with downhole generator - Google Patents
While-drilling equipment signal downloading system with downhole generator Download PDFInfo
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- CN209875148U CN209875148U CN201821968470.7U CN201821968470U CN209875148U CN 209875148 U CN209875148 U CN 209875148U CN 201821968470 U CN201821968470 U CN 201821968470U CN 209875148 U CN209875148 U CN 209875148U
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- 238000005553 drilling Methods 0.000 title claims abstract description 76
- 239000012530 fluid Substances 0.000 claims abstract description 27
- 238000012545 processing Methods 0.000 claims abstract description 19
- 238000012544 monitoring process Methods 0.000 claims abstract description 18
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 3
- 238000004891 communication Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000010586 diagram Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
A signal downloading system of equipment while drilling with a downhole generator is provided, one end of a drilling pump is connected to a fluid supply device, the other end of the drilling pump is connected to the downhole generator, one end of an electric stop valve is connected to the fluid supply device, the other end of the electric stop valve is connected to the drilling pump, a ground monitoring computer is connected with the electric stop valve control device to control the liquid displacement output by the drilling pump to the downhole and a voltage signal output by the downhole generator, the downhole generator is connected to a downhole signal receiving and demodulating circuit, so that the output voltage signal is transmitted to a downhole signal receiving and demodulating circuit, and the downhole signal receiving and demodulating circuit receives the voltage signal and directly transmits the voltage signal to a drilling tool control device through signal processing and demodulation, so that the drilling tool is controlled to; therefore, the utility model discloses simple structure, convenient operation directly utilizes power supply unit generator in the pit, has realized control data's download, provides the signal of low cost and passes down the passageway for realizing drilling orbit closed-loop control.
Description
Technical Field
The utility model relates to a technical field of oil and gas probing especially relates to a along with boring equipment signal system of passing down with generator in pit.
Background
During drilling, it is desirable to enable communication between the surface and the downhole drilling tool to enable remote control of the operating conditions of the drilling tool at the surface. The modern control technology is widely applied to the field of oil and gas drilling, so that manpower is saved, production cost is reduced, the precision of a control target is improved, and production benefits are greatly improved. In the drilling engineering of petroleum, mine, address exploration and the like, the drilling operation still depends on manual operation to a great extent, mainly depends on the experience and skill of engineers, geologists and drillers, along with the popularization and application of measurement while drilling technology, the drilling track and stratum information can be timely transmitted to the ground, the decision and correction on the drilling process can be timely made, the drilling scientificity is improved, but the current measurement while drilling technology can only transmit information in one direction, namely, only can acquire and transmit the working condition and the stratum information of a downhole drilling tool to the ground, the working state of the drilling tool cannot be timely changed according to real-time information, so that the drilling tool can drill according to an engineering design track more accurately, a two-way (ground-downhole) information channel is required to achieve the purpose, the ground control information is timely transmitted to the downhole, the downhole guiding tool corrects the working state at any time, and the closed-loop control on the drilling track is, the accuracy of the drilling track is improved, the drilling cost is reduced on the whole, and the drilling success rate and the exploration and development benefits are improved.
In the current measurement while drilling technology, the transmission technology of communication signals from the underground to the ground mainly comprises electromagnetic waves, sound waves, drilling fluid pulses and wires. The better candidates for signal download are the conductor and drilling fluid pulse. The method has the advantages that the wire is adopted for transmission, a single-core armored cable is generally used for being placed down through a drill column channel, although the method is fast in information transmission, accurate and reliable, special drill rods are needed, the operation is complex, the cost is very high, the cable is difficult to connect and maintain under the conventional drilling condition, and the cable is easy to twist off when rotating along with the drill column; the drilling fluid pulse mode has large signal noise and high error rate. Both of these methods are expensive and not very feasible, which requires new approaches.
Therefore, in view of the above-mentioned drawbacks, the designer of the present invention develops a signal downloading system with an underground generator while drilling by means of comprehensive research and design of experience and achievement of related industries for many years, so as to overcome the above-mentioned drawbacks.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a along with boring equipment signal system of passing down with generator in pit, its simple structure, convenient operation provides the signal of low cost and passes down the passageway, effectively overcomes prior art's defect.
In order to achieve the above object, the utility model discloses a along with boring equipment signal passing system down with generator in pit, including ground supervisory control computer, electronic stop valve controlling means, electronic stop valve, drilling pump, signal reception demodulation circuit and generator in pit, its characterized in that:
one end of the well drilling pump is connected to the fluid supply device, the other end of the well drilling pump is connected to the downhole generator so as to pump the fluid out and drive the downhole generator to rotate to output voltage, one end of the electric stop valve is connected to the fluid supply device, the other end of the electric stop valve is connected to the drilling pump, the ground monitoring computer is connected with the electric stop valve control device, the electric stop valve control device is connected with the electric stop valve to control the liquid displacement output to the underground by the drill pump and the voltage signal output by the underground generator, the downhole generator is connected to the downhole signal receiving and demodulating circuit so that the output voltage signal is transmitted to the downhole signal receiving and demodulating circuit, the underground signal receiving and demodulating circuit receives a voltage signal, demodulates data downloaded by the ground monitoring computer through signal processing and directly transmits the data to the drilling tool control device so as to control the drilling tool to work;
one end of the drill pump is connected to the water hose through the riser pipe so as to pump fluid to the water hose through the riser pipe and drive the downhole generator to rotate to output voltage.
Wherein: the other end of the electric stop valve is connected to the vertical pipe through a branch pipeline.
Wherein: the electric stop valve control device comprises a communication interface, a controller, a coding circuit and a power driving circuit, wherein the communication interface is connected with the ground monitoring computer to receive download data, the controller, the coding circuit and the communication interface are used for coding control data, and the controller, the coding circuit and the power driving circuit are connected to output coding signals to the power driving circuit so as to control the electric stop valve to be opened or closed.
Wherein: the signal receiving demodulation circuit structure diagram comprises a voltage transformer, a signal processing demodulation circuit, a controller and a communication interface, wherein the voltage transformer surrounds the phase line of one phase output by the underground generator so as to measure the voltage signal output by the phase line of one phase output by the underground generator without electric contact.
Wherein: the voltage transformer is connected to the signal processing and demodulating circuit, so that a voltage output signal obtained by the voltage transformer is output to the controller and the communication interface after amplification, band-pass filtering, full-wave rectification, low-pass filtering and signal judgment, and the controller and the communication interface recognize data transmitted by the ground monitoring computer and output to the underground drilling tool control device, so that the process of transmitting the signal from the ground to the underground is completed.
Wherein: the signal processing and demodulating circuit comprises a signal processing circuit, a full-wave rectifying circuit, a low-pass filtering circuit and a signal judging circuit which are sequentially connected, wherein the signal processing circuit is connected to the voltage transformer, and the signal judging circuit is connected to the controller and the communication interface.
According to the structure, the utility model discloses a along with boring equipment signal passing system has following effect with generator in the pit:
1. the structure is simple, the operation is convenient, and the control is reliable;
2. the underground generator of the underground power supply device is directly utilized, the control data is downloaded, and a low-cost signal downloading channel is provided for realizing the closed-loop control of the drilling track.
The details of the present invention can be obtained from the following description and the attached drawings.
Drawings
Fig. 1 shows a schematic structural diagram of the signal downloading system of the drilling equipment with the downhole generator according to the present invention.
Fig. 2 shows the structure diagram of the electric stop valve control device of the utility model.
Fig. 3 shows the structure diagram of the downhole signal receiving and demodulating circuit of the present invention.
Fig. 4A and 4B show schematic diagrams of signals in the present invention.
Detailed Description
Referring to fig. 1 to 4B, the signal downloading system of the drilling equipment with a downhole generator according to the present invention is shown.
The equipment-while-drilling signal transmission system with the downhole generator comprises a surface monitoring computer 101, an electric stop valve control device 102, an electric stop valve 103, a drill pump 104, a vertical pipe 105, a branch pipe 106, a water hose 107, a signal receiving demodulation circuit 108 and the downhole generator 109, wherein one end of the drill pump 104 is connected to a fluid supply device (preferably a mud pit 110 in the figure, a gas supply device can be adopted), the other end of the drill pump is connected to the water hose 107 through the vertical pipe 105, one end of the electric stop valve 103 is connected to the fluid supply device, the other end of the electric stop valve is connected to the vertical pipe 105 through the branch pipe 106 and then connected to the water hose 107, the water hose 107 is connected to the downhole generator 109, the surface monitoring computer 101 is connected with the electric stop valve control device 102 through a communication interface, and the electric stop valve control device 102 is connected, the drilling pump 104 pumps the drilling fluid to flow to a hose 107 through the riser 105, the drilling fluid is connected to a drill string through the hose 107 and conveyed to the downhole, the drilling fluid circularly drives a downhole generator 109 to rotate to output voltage, the downhole generator 109 is connected to a downhole signal receiving and demodulating circuit 108, so that the output voltage signal is transmitted to the downhole signal receiving and demodulating circuit 108, the downhole signal receiving and demodulating circuit 108 receives the voltage signal, demodulates the data transmitted by the ground monitoring computer 101 through signal processing, and directly transmits the data to a drilling tool control device, so that the work of a drilling tool is controlled.
Therefore, when a signal needs to be downloaded, the monitoring computer 101 transmits the downloaded data to the electric stop valve control device 102 through the communication interface, the electric stop valve control device 102 performs coding according to the downloaded data, sends a coding signal to drive the electric stop valve 103 to open or close, when the electric stop valve 103 is closed, all the drilling fluid output by the drill pump 104 flows to the drill string through the riser 105, the drilling fluid output is basically stable, the rotating speed of the downhole generator 109 is also basically stable, and the frequency of the output voltage signal is also basically stable. When the electric stop valve 103 is opened, the drilling fluid output by the drill pump 104 is diverted through the branch conduit 106, and the drilling fluid output to the drill string via the riser 105 is reduced, so that the drilling fluid output is reduced, the rotation speed of the downhole generator 109 is reduced, and the frequency of the voltage signal output by the downhole generator 109 is also reduced.
Fig. 4A and 4B show signal diagrams, fig. 4A shows a data-encoded signal, and fig. 4B shows a voltage signal output by the downhole generator. When the data code element is '0', the electric stop valve 103 is closed, the full displacement of the borehole pump 104 flows to the drill string through the riser 105 to drive the downhole generator 109 to generate a high frequency signal, when the data code element is '1', the electric stop valve 103 is opened, the drilling fluid displacement output by the borehole pump 104 is shunted through the branch conduit 106, and the downhole generator 109 generates a low frequency signal.
Referring to fig. 2, the electrical cut-off valve control device 102 includes a communication interface 201, a controller and coding circuit 202, and a power driving circuit 203, where the communication interface 201 is connected to the ground monitoring computer 101 and is configured to receive data downloaded by the ground monitoring computer 101. The controller and coding circuit 202 is connected to the communication interface 201 and the power driving circuit 203, the controller and coding circuit 202 codes the control data received by the communication interface 201 and sent by the ground monitoring computer 101, and the data coding signal is output to the power driving circuit 203, so as to control the opening or closing of the electric cut-off valve 103.
As shown in fig. 3, the signal receiving and demodulating circuit 108 includes a voltage transformer 302, a signal processing and demodulating circuit 303, and a controller and communication interface 304, the voltage transformer 302 surrounds the phase line 301 of one phase output by the downhole generator 105, so as to measure the voltage signal output by the phase line 301 of one phase output by the downhole generator 105 without electrical contact, the voltage transformer 302 is connected to the signal processing and demodulating circuit 303, so that the voltage output signal obtained by the voltage transformer 302 is output to the controller and communication interface 304 after being amplified, band-pass filtered, full-wave rectified, low-pass filtered, and signal determined, and the controller and communication interface 304 identifies data downloaded by the ground monitoring computer 101 and outputs the data to the downhole drilling tool control device, thereby completing the process of transmitting the signal from the ground to the downhole.
The signal processing and demodulating circuit 303 includes a signal processing circuit 3031, a full-wave rectifying circuit 3032, a low-pass filtering circuit 3033 and a signal decision circuit 3034, which are connected in sequence, wherein the signal processing circuit 3031 is connected to the voltage transformer 302, and the signal decision circuit 3034 is connected to the controller and communication interface 304.
Therefore, the utility model discloses a ground supervisory control computer issues the data of passing down, and after electric stop valve controlling means received the data, carries out data encoding, and data encoding signal control electric stop valve opens, closes to control the lateral conduit and whether shunt the riser in the drilling fluid discharge capacity. The circulating flow of the drilling fluid drives the underground generator to rotate to generate a voltage signal with a certain frequency, the discharge capacity of the drilling fluid determines the rotating speed of the generator, and the rotating speed of the generator determines the frequency of the generated alternating current signal. And voltage signals generated by the underground generator are transmitted to the underground signal receiving and demodulating circuit, and underground data are identified, so that the work of the drilling tool is controlled.
Therefore, the beneficial effects of the utility model reside in that, directly utilize power supply unit generator in the pit, realized control data's download, provide low-cost signal download passageway for realizing drilling trajectory closed-loop control.
It is to be understood that the above description and illustrations are exemplary only and are not intended to limit the present disclosure, application, or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention is intended to include any embodiments that fall within the foregoing description and the appended claims.
Claims (6)
1. A while-drilling equipment signal downloading system with an underground generator comprises a ground monitoring computer, an electric stop valve control device, an electric stop valve, a drilling pump, a signal receiving and demodulating circuit and the underground generator, and is characterized in that:
one end of the well drilling pump is connected to the fluid supply device, the other end of the well drilling pump is connected to the downhole generator so as to pump the fluid out and drive the downhole generator to rotate to output voltage, one end of the electric stop valve is connected to the fluid supply device, the other end of the electric stop valve is connected to the drilling pump, the ground monitoring computer is connected with the electric stop valve control device, the electric stop valve control device is connected with the electric stop valve to control the liquid displacement output to the underground by the drill pump and the voltage signal output by the underground generator, the downhole generator is connected to the downhole signal receiving and demodulating circuit so that the output voltage signal is transmitted to the downhole signal receiving and demodulating circuit, the underground signal receiving and demodulating circuit receives a voltage signal, demodulates data downloaded by the ground monitoring computer through signal processing and directly transmits the data to the drilling tool control device so as to control the drilling tool to work;
one end of the drill pump is connected to the water hose through the riser pipe so as to pump fluid to the water hose through the riser pipe and drive the downhole generator to rotate to output voltage.
2. The system of claim 1 for while drilling equipment signal download with downhole generator, wherein: the other end of the electric stop valve is connected to the vertical pipe through a branch pipeline.
3. The system of claim 1 for while drilling equipment signal download with downhole generator, wherein: the electric stop valve control device comprises a communication interface, a controller, a coding circuit and a power driving circuit, wherein the communication interface is connected with the ground monitoring computer to receive download data, the controller, the coding circuit and the communication interface are used for coding control data, and the controller, the coding circuit and the power driving circuit are connected to output coding signals to the power driving circuit so as to control the electric stop valve to be opened or closed.
4. The system of claim 1 for while drilling equipment signal download with downhole generator, wherein: the signal receiving demodulation circuit structure diagram comprises a voltage transformer, a signal processing demodulation circuit, a controller and a communication interface, wherein the voltage transformer surrounds the phase line of one phase output by the underground generator so as to measure the voltage signal output by the phase line of one phase output by the underground generator without electric contact.
5. The rig-while-drilling signal downloading system with a downhole generator of claim 4, wherein: the voltage transformer is connected to the signal processing and demodulating circuit, so that a voltage output signal obtained by the voltage transformer is output to the controller and the communication interface after amplification, band-pass filtering, full-wave rectification, low-pass filtering and signal judgment, and the controller and the communication interface recognize data transmitted by the ground monitoring computer and output to the underground drilling tool control device, so that the process of transmitting the signal from the ground to the underground is completed.
6. The rig-while-drilling signal downloading system with a downhole generator of claim 4 or 5, wherein: the signal processing and demodulating circuit comprises a signal processing circuit, a full-wave rectifying circuit, a low-pass filtering circuit and a signal judging circuit which are sequentially connected, wherein the signal processing circuit is connected to the voltage transformer, and the signal judging circuit is connected to the controller and the communication interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821968470.7U CN209875148U (en) | 2018-11-28 | 2018-11-28 | While-drilling equipment signal downloading system with downhole generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821968470.7U CN209875148U (en) | 2018-11-28 | 2018-11-28 | While-drilling equipment signal downloading system with downhole generator |
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| CN209875148U true CN209875148U (en) | 2019-12-31 |
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| CN201821968470.7U Expired - Fee Related CN209875148U (en) | 2018-11-28 | 2018-11-28 | While-drilling equipment signal downloading system with downhole generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852366A (en) * | 2020-05-29 | 2020-10-30 | 中国石油天然气集团有限公司 | Accurate flow distribution method for rotary steering system downloading device |
| CN112377172A (en) * | 2020-12-07 | 2021-02-19 | 中国石油天然气集团有限公司 | Drilling signal downloading system and method |
-
2018
- 2018-11-28 CN CN201821968470.7U patent/CN209875148U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111852366A (en) * | 2020-05-29 | 2020-10-30 | 中国石油天然气集团有限公司 | Accurate flow distribution method for rotary steering system downloading device |
| CN112377172A (en) * | 2020-12-07 | 2021-02-19 | 中国石油天然气集团有限公司 | Drilling signal downloading system and method |
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Granted publication date: 20191231 Termination date: 20211128 |