CN111140217B - Coiled tubing drilling ground control device - Google Patents
Coiled tubing drilling ground control device Download PDFInfo
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- CN111140217B CN111140217B CN202010142988.0A CN202010142988A CN111140217B CN 111140217 B CN111140217 B CN 111140217B CN 202010142988 A CN202010142988 A CN 202010142988A CN 111140217 B CN111140217 B CN 111140217B
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- coiled tubing
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- 238000005553 drilling Methods 0.000 title claims abstract description 24
- 230000005540 biological transmission Effects 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000007493 shaping process Methods 0.000 claims description 15
- 230000006854 communication Effects 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000007175 bidirectional communication Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Remote Sensing (AREA)
- Geophysics (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of underground operation equipment, and particularly relates to a coiled tubing drilling ground control device. The ground control device has compact structure and higher anti-interference performance, and the highest data transmission rate can reach 100kBPS. A coiled tubing drilling surface control device, comprising: the main case structure and the main control circuit board; the main control circuit board comprises: the MCU micro-control unit, the monitoring circuit unit, the modulation and demodulation circuit unit and the power distribution unit; the modulation and demodulation circuit unit consists of a transmission signal driving circuit, a reception signal driving circuit and an amplifying and demodulating circuit; the power distribution unit is composed of a power switch, an AC-DC adjustable direct current power supply and an AC-DC direct current power supply.
Description
Technical Field
The invention belongs to the technical field of underground operation equipment, and particularly relates to a coiled tubing drilling ground control device.
Background
As an emerging downhole operation process, coiled tubing and the like are adopted in coiled tubing technology to form a jointless downhole continuous conveying pipeline, so that well repair of a production well or other downhole operation work is realized. Coiled tubing technology has many advantages over traditional conventional single joint operation modes, such as: the operation cost is relatively low; the yield of the oil well and the safety and reliability of operation are improved; the coiled tubing operation construction is relatively more convenient, and the occupied area is smaller. It is worth noting that as an important component in the coiled tubing system, the coiled tubing ground control device is connected with the underground logging cable of the coiled tubing in a communication way, so as to realize the real-time acquisition of information data of each structure of the coiled tubing system and realize a series of technical purposes such as control and management signal issuing. Therefore, for those skilled in the art, in order to further improve the stability of the coiled tubing system and improve the transmission rate of the bidirectional data, it is needed to provide a coiled tubing ground control device with stronger reliability and better anti-interference effect.
Disclosure of Invention
The invention provides a coiled tubing drilling ground control device which has compact structure and higher anti-interference performance, and the highest data transmission rate can reach 100kBPS.
In order to solve the technical problems, the invention adopts the following technical scheme:
a coiled tubing drilling surface control device, comprising:
the main control circuit board is arranged in the main case body structure; the main control circuit board comprises: the MCU micro-control unit, the monitoring circuit unit, the modulation and demodulation circuit unit and the power distribution unit;
The monitoring circuit unit and the MCU micro-control unit establish a communication connection relationship through the ADC analog-to-digital conversion circuit;
The modulation and demodulation circuit unit is connected with the MCU micro-control unit and is also connected with all downhole instruments and all downhole tools in a two-way communication manner; the modulation and demodulation circuit unit consists of a transmission signal driving circuit, a reception signal driving circuit and an amplifying and demodulating circuit;
The power distribution unit consists of a power switch, an AC-DC adjustable direct current power supply and an AC-DC direct current power supply; wherein the AC-DC adjustable direct current power supply and the AC-DC direct current power supply are arranged in parallel; the AC-DC adjustable direct current power supply is connected with the underground logging cable through the isolation inductor and the voltage-current detection circuit and is used for modulating 220V alternating current into direct current with the voltage value of 0V-600V and the current value of 2A so as to supply power requirements of all underground instruments and all underground tools; the AC-DC power supply is used for modulating 220V alternating current into direct current with voltage value of 12V or 9V or 5V or 3.3V and current value of 2A, and supplying the direct current to the power requirements of each structural unit of the main control circuit board.
Preferably, the transmission signal driving circuit comprises a first JK trigger circuit, a second JK trigger circuit, a numerical control frequency dividing circuit, a2 frequency dividing and shaping circuit and a transmission driving circuit; the first JK trigger circuit and the second JK trigger circuit are respectively connected with the numerical control frequency dividing circuit; the numerical control frequency division circuit, the 2 frequency division shaping circuit and the emission driving circuit are sequentially connected; the transmitting end of the transmitting driving circuit is connected with the underground logging cable through a first high-voltage coupling capacitor; the trigger input end of the first JK trigger circuit is driven and controlled by the MCU micro-control unit of the main control circuit board.
Preferably, the trigger input end of the second JK trigger circuit is sequentially connected with the frequency divider 2 and the oscillating circuit 1.2 MHZ.
Preferably, the numerical control frequency dividing circuit adopts an 8-bit binary programmable counter, and a clock pin of the numerical control frequency dividing circuit is sequentially connected with the 4-frequency divider and the 4MHZ oscillating circuit.
Preferably, the receiving signal driving circuit comprises an inverting amplifier, a first 2 nd order band-pass filter, a second 2 nd order band-pass filter and a carrier demodulation circuit; the inverting amplifier is connected with the underground logging cable through a second high-voltage coupling capacitor; the inverting amplifier, the first 2 nd order band-pass filter, the second 2 nd order band-pass filter and the carrier demodulation circuit are sequentially connected.
Preferably, the received signal driving circuit further includes: a shaping circuit; the shaping circuit is connected with the carrier demodulation circuit and is driven and controlled by the MCU micro-control unit of the main control circuit board.
The invention provides a ground control device for coiled tubing drilling, which comprises a main case body structure and a main control circuit board; wherein, further include in the master control circuit board: MCU micro-control unit, monitoring circuit unit, modem circuit unit and distribution unit. The coiled tubing drilling ground control device with the structural characteristics can realize bidirectional high-speed communication of measurement while drilling or underground logging data, and improves the signal-to-noise ratio and greatly inhibits interference information through the configured filter circuit and the special decoding chip, so that the communication efficiency is higher and the reliability is stronger.
Drawings
FIG. 1 is a schematic circuit diagram of a coiled tubing drilling surface control device according to the present invention;
FIG. 2 is a schematic circuit diagram of a main control circuit board in a coiled tubing drilling surface control device according to the present invention;
FIG. 3 is a schematic diagram of a circuit for driving a signal transmission circuit in a coiled tubing drilling surface control device according to the present invention;
fig. 4 is a schematic circuit diagram of a received signal driving circuit in a coiled tubing drilling surface control device according to the present invention.
Detailed Description
The invention provides a coiled tubing drilling ground control device which has compact structure and higher anti-interference performance, and the highest data transmission rate can reach 100kBPS.
The invention particularly provides a ground control device for coiled tubing drilling, which comprises an organic case main body structure and a main control circuit board. The main case structure further comprises a front panel (display gauge head), an operation handle of the ground control device, a multi-structure mounting frame and the like. And the main control circuit board is arranged inside the structure of the case main body (for example, on an internal circuit board mounting frame). As shown in fig. 1 or fig. 2, the main control circuit board includes an MCU micro-control unit, a monitoring circuit unit, a modem circuit unit and a power distribution unit. The monitoring circuit unit and the MCU micro-control unit establish communication connection through the ADC analog-to-digital conversion circuit. It should be noted that, as shown in fig. 2, the monitoring circuit unit is connected with other parameter detecting instruments (for example, connected with a voltmeter, an ammeter, a temperature tester, etc. of the local surface control device, and also connected with other structures such as a tension sensor, a depth detector, etc.), so as to monitor parameters such as voltage value, power supply voltage, power supply current, temperature of a main control circuit board, and ground tension value of each circuit of the local surface control device; and then, the ADC circuit performs digital-to-analog conversion on all the parameters (analog quantity) obtained by monitoring, and the parameters are intensively sent into the MCU. The MCU is used as a core component of the main control circuit board and is used for completing bidirectional data communication of the ground instrument, each underground instrument and collecting and processing working parameters of each structural unit; here, as an alternative implementation mode of the invention, the MCU micro-control unit is configured with an RS232 communication interface for implementing debugging of the MCU micro-control unit by development and maintenance personnel; in addition, a host computer in communication connection with the MCU micro-control unit is also preferably arranged. By utilizing the man-machine interaction interface configured on the upper host, operators can monitor the changes of parameters and states of various instruments on the ground and underground in real time, and can rapidly complete the operation functions of ground and underground data processing, display, control and the like.
As shown in fig. 2, the modem circuit unit is connected with the MCU micro-control unit, and the modem circuit unit is also connected with each downhole instrument and each downhole tool in a bidirectional communication manner. It is noted that conventional downhole drilling tool control tools often use a relatively high power brushless dc motor, which can produce relatively high current noise during operation and adversely affect data transmission. Therefore, the modulation and demodulation circuit unit adopts an FSK bidirectional carrier data transmission mode, and uses carriers with frequencies of 4kHz and 5kHz to transmit digital 0/1, so that the signal to noise ratio is improved, interference signals are restrained, and reliable bidirectional data transmission is ensured under the environment with larger current noise when the DC brushless motor operates.
The modulation and demodulation circuit unit further comprises a transmission signal driving circuit, a receiving signal driving circuit and an amplifying and demodulating circuit. In a preferred embodiment of the present invention, as shown in fig. 3, the transmission signal driving circuit specifically includes a first JK trigger circuit, a second JK trigger circuit, a digital control frequency division circuit, a frequency division shaping circuit with 2 frequency division, and a transmission driving circuit. The first JK trigger circuit and the second JK trigger circuit are respectively connected with the numerical control frequency dividing circuit; the numerical control frequency division circuit, the 2 frequency division shaping circuit and the emission driving circuit are sequentially connected; the transmitting end of the transmitting driving circuit is connected with the underground logging cable through a first high-voltage coupling capacitor. It should be noted that, the trigger input end of the first JK trigger circuit is driven and controlled by the MCU micro control unit of the main control circuit board; during normal operation, the trigger input end of the first JK trigger circuit is connected with a control signal provided by the MCU, and a communication signal is sent to the underground logging cable through the numerical control frequency dividing circuit, the 2 frequency dividing and shaping circuit and the transmitting driving circuit. When the working point of the transmission signal driving circuit is required to be debugged or tested, the trigger input end of the first JK trigger circuit is connected with a high level, the trigger input end of the second JK trigger circuit is sequentially connected with a 2 frequency divider and a 1.2MHz oscillating circuit which are preferably arranged, and the 2 frequency divider and the 1.2MHz oscillating circuit generate debugging signals (for example, the 2 frequency divider and the 1.2MHz oscillating circuit generate a square wave signal with the duty ratio of 50 percent and the frequency of about 600 MHz). Furthermore, as a further preferred embodiment of the present invention, the digitally controlled frequency divider circuit employs an 8-bit binary programmable counter with clock pins connected in sequence to the 4-frequency divider and the 4MHZ oscillating circuit. The 4MHZ oscillation circuit generates a signal, and the signal is processed by a 4 frequency divider to obtain a square wave signal of 1 MHZ; the square wave signal is used as a clock signal for a digitally controlled frequency divider circuit. When the frequency division frequency needs to be changed, the square waves with the output frequency of 8kHz and 9.9kHz are regulated by controlling the programming pins and utilizing the high and low levels; then the stable output waveforms of 4kHz and 4.95kHz with the duty ratio of 50% are obtained through a frequency division shaping circuit of 2. Finally, the FSK signal waveform with a certain amplitude can be generated on the underground logging cable through the emission driving circuit and the first high-voltage coupling capacitor, wherein the first high-voltage coupling capacitor is used for playing roles of isolating and filtering.
As another preferred embodiment of the present invention, as shown in fig. 4, the received signal driving circuit includes an inverting amplifier, a first 2 nd order band-pass filter, a second 2 nd order band-pass filter, and a carrier demodulation circuit; the inverting amplifier is connected with the underground logging cable through a second high-voltage coupling capacitor; the inverting amplifier, the first 2 nd order band-pass filter, the second 2 nd order band-pass filter and the carrier demodulation circuit are sequentially connected. Notably, the inverting amplifier is used for receiving the FSK carrier signal on the single-core logging cable core and performing amplification amplitude recovery processing; the first 2-order band-pass filter and the second 2-order band-pass filter are used for finishing two times of filtering treatment, so that various interferences generated in the transmission process are removed; the carrier demodulation circuit is further connected with a shaping circuit which is preferably arranged; the shaping circuit is driven and controlled by the MCU micro-control unit of the main control circuit board, and the carrier demodulation data received by the carrier demodulation circuit is controlled and shaped by the shaping circuit and then is intensively sent into the MCU micro-control unit of the main control circuit board for output processing.
Finally, as shown in fig. 1, the power distribution unit of the equipment in the local surface control device specifically comprises a power switch, an AC-DC adjustable direct current power supply and an AC-DC direct current power supply. Wherein the AC-DC adjustable direct current power supply is connected in parallel with the AC-DC direct current power supply. The AC-DC adjustable direct current power supply is connected with the underground logging cable through the isolation inductor and the voltage-current detection circuit and is used for modulating 220V alternating current into direct current with the voltage value of 0V-600V and the current value of 2A so as to supply power requirements of all underground instruments and all underground tools; the AC-DC power supply is used for modulating 220V alternating current into direct current with voltage value of 12V or 9V or 5V or 3.3V and current value of 2A, and supplying the direct current to the power requirements of each structural unit of the main control circuit board.
The invention provides a ground control device for coiled tubing drilling, which comprises a main case body structure and a main control circuit board; wherein, further include in the master control circuit board: MCU micro-control unit, monitoring circuit unit, modem circuit unit and distribution unit. The coiled tubing drilling ground control device with the structural characteristics can realize bidirectional high-speed communication of measurement while drilling or underground logging data, and improves the signal-to-noise ratio and greatly inhibits interference information through the configured filter circuit and the special decoding chip, so that the communication efficiency is higher and the reliability is stronger.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (4)
1. A coiled tubing drilling surface control device, comprising: the main control circuit board is arranged in the main case body structure; the main control circuit board comprises: the MCU micro-control unit, the monitoring circuit unit, the modulation and demodulation circuit unit and the power distribution unit; the monitoring circuit unit and the MCU micro-control unit establish a communication connection relationship through the ADC analog-to-digital conversion circuit; the modulation and demodulation circuit unit is connected with the MCU micro-control unit and is also connected with all downhole instruments and all downhole tools in a two-way communication manner; the modulation and demodulation circuit unit consists of a transmission signal driving circuit, a reception signal driving circuit and an amplifying and demodulating circuit; the power distribution unit consists of a power switch, an AC-DC adjustable direct current power supply and an AC-DC direct current power supply; wherein the AC-DC adjustable direct current power supply and the AC-DC direct current power supply are arranged in parallel; the AC-DC adjustable direct current power supply is connected with the underground logging cable through the isolation inductor and the voltage-current detection circuit and is used for modulating 220V alternating current into direct current with the voltage value of 0V-600V and the current value of 2A so as to supply power requirements of all underground instruments and all underground tools; the AC-DC direct current power supply is used for modulating 220V alternating current into direct current with the voltage value of 12V or 9V or 5V or 3.3V and the current value of 2A, and supplying the power requirement of each structural unit of the main control circuit board; the transmitting signal driving circuit comprises a first JK trigger circuit, a second JK trigger circuit, a numerical control frequency dividing circuit, a2 frequency dividing and shaping circuit and a transmitting driving circuit; the first JK trigger circuit and the second JK trigger circuit are respectively connected with the numerical control frequency dividing circuit; the numerical control frequency division circuit, the 2 frequency division shaping circuit and the emission driving circuit are sequentially connected; the transmitting end of the transmitting driving circuit is connected with the underground logging cable through a first high-voltage coupling capacitor; the trigger input end of the first JK trigger circuit is driven and controlled by the MCU micro-control unit of the main control circuit board; the receiving signal driving circuit comprises an inverting amplifier, a first 2-order band-pass filter, a second 2-order band-pass filter and a carrier demodulation circuit; the inverting amplifier is connected with the underground logging cable through a second high-voltage coupling capacitor; the inverting amplifier, the first 2 nd order band-pass filter, the second 2 nd order band-pass filter and the carrier demodulation circuit are sequentially connected.
2. The coiled tubing drilling surface control device according to claim 1, wherein the trigger input end of the second JK trigger circuit is sequentially connected with the frequency divider 2 and the oscillating circuit 1.2 MHZ.
3. The coiled tubing drilling surface control device according to claim 1, wherein the numerical control frequency dividing circuit adopts an 8-bit binary programmable counter, and a clock pin of the numerical control frequency dividing circuit is sequentially connected with the 4-frequency divider and the 4-MHZ oscillating circuit.
4. The coiled tubing drilling surface control device according to claim 1, wherein the received signal driving circuit further comprises: a shaping circuit; the shaping circuit is connected with the carrier demodulation circuit and is driven and controlled by the MCU micro-control unit of the main control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142988.0A CN111140217B (en) | 2020-03-04 | 2020-03-04 | Coiled tubing drilling ground control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010142988.0A CN111140217B (en) | 2020-03-04 | 2020-03-04 | Coiled tubing drilling ground control device |
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| Publication Number | Publication Date |
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| CN111140217A CN111140217A (en) | 2020-05-12 |
| CN111140217B true CN111140217B (en) | 2024-06-11 |
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| CN202010142988.0A Active CN111140217B (en) | 2020-03-04 | 2020-03-04 | Coiled tubing drilling ground control device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110896Y (en) * | 2007-07-02 | 2008-09-03 | 福州华虹智能科技开发有限公司 | High resolution mine geology detector |
| CN108241129A (en) * | 2018-01-09 | 2018-07-03 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Switching power supply output filter capacitor monitoring device and method |
| CN211648120U (en) * | 2020-03-04 | 2020-10-09 | 中石化石油工程技术服务有限公司 | Ground control device for coiled tubing drilling |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT201600130095A1 (en) * | 2016-12-22 | 2018-06-22 | Eggtronic Eng S R L | Wireless power transfer system |
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2020
- 2020-03-04 CN CN202010142988.0A patent/CN111140217B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110896Y (en) * | 2007-07-02 | 2008-09-03 | 福州华虹智能科技开发有限公司 | High resolution mine geology detector |
| CN108241129A (en) * | 2018-01-09 | 2018-07-03 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Switching power supply output filter capacitor monitoring device and method |
| CN211648120U (en) * | 2020-03-04 | 2020-10-09 | 中石化石油工程技术服务有限公司 | Ground control device for coiled tubing drilling |
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