CN102031957A - Rotating guiding well drilling signal receiving device based on underground mud turbine motor - Google Patents
Rotating guiding well drilling signal receiving device based on underground mud turbine motor Download PDFInfo
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- CN102031957A CN102031957A CN201010529824XA CN201010529824A CN102031957A CN 102031957 A CN102031957 A CN 102031957A CN 201010529824X A CN201010529824X A CN 201010529824XA CN 201010529824 A CN201010529824 A CN 201010529824A CN 102031957 A CN102031957 A CN 102031957A
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Abstract
The invention relates to a rotating guiding well drilling signal receiving device based on underground mud turbine motor, comprising an acquisition circuit. The acquisition circuit is connected with a mud generator, the acquisition circuit is sequentially connected with an analog signal processing circuit and an A/D converter, digital signal processing software of an underground microprocessor and command interpretation software are connected with data transmission, a drilling fluid mud delivery volume negative pulse width sequence signal is transmitted to the underground by virtue of a drill rod, a mud turbine is driven to rotate, so that output voltage and frequency of the mud generator are correspondingly changed, a voltage pulse width signal obtained by the acquisition circuit is transmitted to signal processing; and the signal is subject to A/D conversion and digital signal processing, and the signal is transmitted to the command interpretation software for instruction word receiving interpretation, thus realizing real-time control of a ground monitoring system on guiding well drilling process. The invention has the advantages of simple structure and is convenient to use.
Description
Technical field
The present invention relates to the receiving system of teletype command under a kind of mud drilling liquid, particularly a kind of rotary steerable drilling signal receiving device based on the down-hole slurry turbo-dynamo.
Background technology
In the rotary steerable drilling process, ground monitoring system and operating personnel need give the downhole tool sending controling instruction by the downgoing communication passage.In drilling engineering and Related Research Domain thereof, commonly used has several modes such as cable, sound wave, electromagnetic wave and drilling fluid displacement or pressure pulse etc. by the transfer of data of ground to the down-hole.Wherein use the cable type transmission of special drill pipe to have that transfer of data is fast, the simple and reliable property of two-way communication advantages of higher, but this mode cost height, complicated, the communication cable sensitive for damages in drilling process of construction.It is very fast that the electromagnetic transmission mode is transmitted the speed of data, and do not need special drilling rod, but can only transmit the low frequency signal that approaches the earth transmission frequency, the transmission poor signal to noise.The advantage of sonic transmissions mode be simple in structure, cost is lower, its shortcoming is a little less than sound wave is subjected to ambient noise when drilling well interference, the signal, the poor reliability of relay, cost height.Though mud-pulse method transmission speed is slower, but drilling technology there are not particular restriction and requirement, it is relatively easy that the reception of signal detects, and be convenient to combine with the MWD of present widely used mud-pulse mode, thereby form the closed-loop control system of communicating by letter with under-well bi-directional in ground.The degree of depth, speed, the actual demand of reliability and the factors such as work characteristics of down-hole guide drilling tool of comprehensive rotary steerable drilling system downgoing communication transmission adopt the mode of drilling fluid pulse to realize that downlink data transmission is a kind of comparatively reasonably selection.
The drilling fluid pulse transmission is general adopts the pulse of mud drilling hydraulic coupling to realize, special pressure sensor and corresponding circuit thereof generally need be set in the down-hole during drilling liquid pressure burst transmissions, and this mode will be a greater impact when the downhole environment pressure anomaly.Adopt the method for downhole flow sensor, aspects such as the reliability of actual detected and precision equally also exist the some shortcomings part in drilling engineering.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the invention provides a kind of rotary steerable drilling signal receiving device based on the down-hole slurry turbo-dynamo, utilize the online detection of existing turbine generator in the NDS by the represented following transmission control system instruction of mud drilling liquid displacement variation, and finish under the drilling well by the hardware and software that is attached thereto the receiving system that connects and to pass Signal Processing, identification and explanation task, have advantage simple in structure and easy to use.
In order to achieve the above object, the technical scheme taked of the present invention is:
A kind of rotary steerable drilling signal receiving device based on the down-hole slurry turbo-dynamo, comprise Acquisition Circuit 2, the output supply voltage of the input of Acquisition Circuit 2 and slurry generator 1 is connected in parallel, the output of Acquisition Circuit 2 is connected with the input of analog signal processing 3, the output of analog signal processing 3 is connected with the input of A/D conversion 4, the output of A/D conversion 4 provides the input data by the Digital Signal Processing 5 of down-hole microprocessor for command interpretation 6, and the output of command interpretation 6 is by teletype command under transfer of data 7 outputs.
Described slurry generator 1 is installed on the upper end of the interior inertial navigation stabilized platform of guide drilling tool at nearly drill bit place, down-hole, drive by drilling fluid, the hardware circuit part of Acquisition Circuit 2 and analog signal processing 3 is installed in the interior sealing electronics storehouse 11 of guide drilling tool, and the program of Digital Signal Processing 5 and command interpretation 6 is embedded in the data acquisition program of rotary steering down-hole microprocessor.
Described Acquisition Circuit 2 comprises miniature mutual inductance line device 13; the input of miniature mutual inductance line device 13 and the output voltage of slurry generator 1 are connected in parallel; the output of miniature mutual inductance line device 13 is connected with the input of clamper protection 14; the output of clamper protection 14 and the first input end of active amplification 15 are connected; the output of active amplification 15 is connected with the input of active power filtering 17; the output of active power filtering 17 is connected with the input of precision rectifying 18; the output of precision rectifying 18 is connected with the input of analog signal processing 3, and the input of temperature-compensating 16 inserts second input of active amplification 15.
Described analog signal processing 3 partly is made up of the basic electronic circuit of LPF, level conversion.
12 A/D conversions are adopted in described A/D conversion 4.
Described Digital Signal Processing 5 adopts the moving average filter method.
Described command interpretation 6 comprises threshold decision and pulsewidth timing, each instruction code by teletype command signal under the pulsewidth Time Calculation between twice signal saltus step, be a complete coding line with its assembly after 5 bit instruction sign indicating numbers receive, adopted signal threshold value to judge in the algorithm with adaptation function, employing has intelligent function algorithm and argin and rounds the pulsewidth recognition technology of function, has the basic function of the different disposal method that super broad pulse and high-frequency narrow-pulse in the detection signal are disturbed simultaneously.
Operating principle of the present invention is:
During this device busy, the following teletype command signal of employing pulse interval coded system falls three liters of variations by three of drilling fluid mud 8 discharge capacities and represents.Each coding line is made of 5 bit instruction sign indicating numbers, corresponding different guiding force size and direction.Every bit instruction sign indicating number was represented by the time of a pulse width, these mud 8 pulsewidth sequence signals are transferred to the down-hole by the drill string inner chamber, thereby driving slurry turbine 12 rotations makes the output voltage of slurry generator 1 and frequency produce corresponding the variation, Acquisition Circuit 2 transfers to analog signal processing 3 again with the voltage pulse width signal that obtains, the digital data transmission that analog signal processing 3 is handled the analog voltage signal that obtains to obtain sampling through 12 A/D conversions 4 is to Digital Signal Processing 5, Digital Signal Processing 5 is further processed again, and the signal that obtains is transferred to command interpretation 6 carry out being calculated as main coding line and receive and handle by threshold decision and pulsewidth timing, each pulsewidth time that this command interpretation 6 can be in the signal obtains the corresponding command position corresponding codes, and assembly is a complete coding line after 5 bit instruction sign indicating numbers receive, send up-to-date control command by transfer of data 7, thereby realize the real-time control procedure of ground monitoring system the steerable drilling process as guiding control program in the guide drilling tool.
Advantage of the present invention is:
Because the present invention can guarantee the Engineering Reliability requirement, do not change existing drilling technology and under the less prerequisite of actual well drilled guiding operating influence, be downhole tool transmission ground monitoring order, pressure or flow transmitter need be set again in the down-hole, do not need other auxiliary equipment such as helicoid hydraulic motor yet, in the rotary steerable tool of down-hole on the basis of existing turbine generator, cooperate certain hardware circuit and software program to finish and receive task, so the present invention has simple in structure and easy to operate advantage by teletype command under the represented steerable drilling of mud displacement pulsewidth sequence.
Description of drawings
Fig. 1 is a structure composition frame chart of the present invention.
Fig. 2 is a hardware of the present invention installation site schematic diagram.
Fig. 3 is the electrical principle block diagram of data acquisition circuit 2 of the present invention.
Fig. 4 is the program principle block diagram of Digital Signal Processing 5 of the present invention and command interpretation 6.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done detailed description.
Referring to Fig. 1, a kind of rotary steerable drilling signal receiving device based on the down-hole slurry turbo-dynamo, comprise Acquisition Circuit 2, the output supply voltage of the input of Acquisition Circuit 2 and slurry generator 1 is connected in parallel, the output of Acquisition Circuit 2 is connected with the input of analog signal processing 3, the output of analog signal processing 3 is connected with the input of A/D conversion 4, the output of A/D conversion 4 provides the input data by the Digital Signal Processing 5 of down-hole microprocessor for command interpretation 6, and the output of command interpretation 6 is by teletype command under transfer of data 7 outputs.
Referring to Fig. 2, described slurry generator 1 is installed on the upper end of the interior inertial navigation stabilized platform of guide drilling tool at nearly drill bit place, down-hole, drive by drilling fluid, the hardware circuit part of Acquisition Circuit 2 and analog signal processing 3 is installed in the interior sealing electronics storehouse 11 of guide drilling tool, drill collar 10 is positioned at the inner chamber of pit shaft 9, slurry generator 1 is positioned at the inner chamber of drill collar 10, and an end of slurry generator 1 is a turbine 12, and the other end is sealing electronics storehouse 11.
Referring to Fig. 3; described Acquisition Circuit 2 comprises miniature mutual inductance line device 13; the input of miniature mutual inductance line device 13 and the output voltage of slurry generator 1 are connected in parallel; the output of miniature mutual inductance line device 13 is connected with the input of clamper protection 14; the output of clamper protection 14 and the first input end of active amplification 15 are connected; the output of active amplification 15 is connected with the input of active power filtering 17; the output of active power filtering 17 is connected with the input of precision rectifying 18; the output of precision rectifying 18 is connected with the input of analog signal processing 3; the input of temperature-compensating 16 inserts second input of active amplification 15; by adopting the detection of mutual inductance principle realization to voltage change; current transformer 13 induced-currents are milliampere level, are obtained the output voltage of volt level and are guaranteed accurate measurement to the turbine alternating current generator by thereafter hardware circuit.
Described analog signal processing 3 partly is made up of the basic electronic circuit of LPF, level conversion.
12 A/D conversions are adopted in described A/D conversion 4.
Referring to Fig. 4, consider that down-hole permanent magnetism hands over high-intensity magnetic field that the interchange mud turbine generator of formula the produces electromagnetic interference to the mutual inductor detection signal, the data signal that sampling obtains needs to lose one's life after digital filtering is handled to make again and explains that 6 handle, Digital Signal Processing 5 adopts the moving average filter method to handle, command interpretation 6 at first passing threshold is judged and to be found drilling fluid displacement to change pairing rising of the number of delivering a letter down or trailing edge respectively, it is core that descending reception is handled with the pulsewidth timing, each instruction code by teletype command signal under the pulsewidth Time Calculation between twice signal saltus step, and after 5 bit instruction sign indicating numbers receive, be a complete coding line with its assembly, the coding line of gained is sent up-to-date control command as guiding control program in the guide drilling tool by transfer of data 7, thereby realizes the real-time control procedure of ground monitoring system to the steerable drilling process.
Operating principle of the present invention is:
During this device busy, the drilling fluid mud 8 discharge capacity negative pulse pulsewidth sequence signals that contain the digital coding control instruction are transferred to the down-hole by drilling rod 10, thereby driving slurry turbine 12 rotations makes the output voltage of slurry generator 1 and frequency produce corresponding the variation, data acquisition circuit 2 transfers to analog signal processing circuit 3 again with the voltage pulse width signal that obtains, the digital data transmission that analog signal processing circuit 3 is handled the analog voltage signal that obtains to obtain sampling through 12 A/D conversions 4 is to Digital Signal Processing 5, Digital Signal Processing 5 is further processed again, and the signal that obtains is transferred to that command interpretation 6 carries out by threshold decision and pulsewidth timing computing is that main coding line receives and handles, each pulsewidth time that this command interpretation 6 can be in the signal obtains the corresponding command position corresponding codes, and assembly is a complete coding line after 5 bit instruction sign indicating numbers receive, send up-to-date control command by transfer of data 7, thereby realize the real-time control procedure of ground monitoring system the steerable drilling process as guiding control program in the guide drilling tool.
In the accompanying drawing: 1 is slurry generator; 2 is data acquisition circuit; 3 is analog signal processing circuit; 4 are the A/D conversion; 5 is Digital Signal Processing; 6 are command interpretation; 7 is transfer of data; 8 is mud; 9 is pit shaft; 10 is drill collar; 11 is the sealed electronic storehouse; 12 is turbine; 13 is miniature mutual inductance line device; 14 are the clamper protection; 15 is active amplification; 16 are temperature-compensating; 17 is active power filtering; 18 is precision rectifying.
Claims (7)
1. rotary steerable drilling signal receiving device based on the down-hole slurry turbo-dynamo, comprise Acquisition Circuit (2), it is characterized in that: the output supply voltage of the input of Acquisition Circuit (2) and slurry generator (1) is connected in parallel, the output of Acquisition Circuit (2) is connected with the input of analog signal processing (3), the output of analog signal processing (3) is connected with the input of A/D conversion (4), the output of A/D conversion (4) provides data by the Digital Signal Processing (5) of down-hole microprocessor for command interpretation (6), and the output of command interpretation (6) is by teletype command under transfer of data (7) output.
2. a kind of rotary steerable drilling signal receiving device according to claim 1 based on the down-hole slurry turbo-dynamo, it is characterized in that: described slurry generator (1) is installed on the upper end of the interior inertial navigation stabilized platform of guide drilling tool at nearly drill bit place, down-hole, drive by drilling fluid, the hardware circuit part of Acquisition Circuit (2) and analog signal processing (3) is installed in the interior sealing electronics storehouse (11) of guide drilling tool, and the program of Digital Signal Processing (5) and command interpretation (6) is embedded in the data acquisition program of rotary steering down-hole microprocessor.
3. a kind of rotary steerable drilling signal receiving device according to claim 1 based on the down-hole slurry turbo-dynamo; it is characterized in that: described Acquisition Circuit (2) comprises miniature mutual inductance line device (13); the output voltage of the input of miniature mutual inductance line device (13) and slurry generator (1) is connected in parallel; the output of miniature mutual inductance line device (13) is connected with the input of clamper protection (14); the output of clamper protection (14) and the first input end of active amplification (15) are connected; the output of active amplification (15) is connected with the input of active power filtering (17); the output of active power filtering (17) is connected with the input of precision rectifying (18); the output of precision rectifying (18) is connected with the input of analog signal processing (3), and the input of temperature-compensating (16) inserts second input of active amplification (15).
4. a kind of rotary steerable drilling signal receiving device based on the down-hole slurry turbo-dynamo according to claim 1, it is characterized in that: described analog signal processing (3) partly is made up of the basic electronic circuit of LPF, level conversion.
5. a kind of rotary steerable drilling signal receiving device based on the down-hole slurry turbo-dynamo according to claim 1 is characterized in that: 12 A/D conversions are adopted in described A/D conversion (4).
6. a kind of rotary steerable drilling signal receiving device based on the down-hole slurry turbo-dynamo according to claim 1 is characterized in that: described Digital Signal Processing (5) adopts the moving average filter method.
7. a kind of rotary steerable drilling signal receiving device according to claim 1 based on the down-hole slurry turbo-dynamo, it is characterized in that: described command interpretation (6) comprises threshold decision and pulsewidth timing, each instruction code by teletype command signal under the pulsewidth Time Calculation between twice signal saltus step, be a complete coding line with its assembly after 5 bit instruction sign indicating numbers receive, adopted signal threshold value to judge in the algorithm with adaptation function, employing has intelligent function algorithm and argin and rounds the pulsewidth recognition technology of function, has the basic function of the different disposal method that super broad pulse and high-frequency narrow-pulse in the detection signal are disturbed simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010529824XA CN102031957A (en) | 2010-11-01 | 2010-11-01 | Rotating guiding well drilling signal receiving device based on underground mud turbine motor |
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| CN201010529824XA CN102031957A (en) | 2010-11-01 | 2010-11-01 | Rotating guiding well drilling signal receiving device based on underground mud turbine motor |
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| CN102031957A true CN102031957A (en) | 2011-04-27 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619498A (en) * | 2012-02-17 | 2012-08-01 | 北京石油机械厂 | Steering drilling system based on top driving and ground control and drilling operation method |
| CN104271881A (en) * | 2012-02-24 | 2015-01-07 | 普拉德研究及开发股份有限公司 | Mud pulse telemetry mechanism using power generation turbines |
| CN106837677A (en) * | 2016-12-15 | 2017-06-13 | 中国科学院地质与地球物理研究所 | A kind of down-hole slime pulp turbo generator draw-gear |
| CN109768717A (en) * | 2019-03-08 | 2019-05-17 | 中国石油天然气集团有限公司 | A kind of Iarge Power DC Voltage Regulator for intelligent drilling tool |
| CN111502646A (en) * | 2020-04-30 | 2020-08-07 | 中国石油天然气集团有限公司 | Rotary guide instruction downloading system based on motor frequency conversion control |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619498A (en) * | 2012-02-17 | 2012-08-01 | 北京石油机械厂 | Steering drilling system based on top driving and ground control and drilling operation method |
| CN102619498B (en) * | 2012-02-17 | 2015-04-15 | 北京石油机械厂 | Drilling operation method of steering drilling system based on top driving and ground control |
| CN104271881A (en) * | 2012-02-24 | 2015-01-07 | 普拉德研究及开发股份有限公司 | Mud pulse telemetry mechanism using power generation turbines |
| CN106837677A (en) * | 2016-12-15 | 2017-06-13 | 中国科学院地质与地球物理研究所 | A kind of down-hole slime pulp turbo generator draw-gear |
| CN109768717A (en) * | 2019-03-08 | 2019-05-17 | 中国石油天然气集团有限公司 | A kind of Iarge Power DC Voltage Regulator for intelligent drilling tool |
| CN109768717B (en) * | 2019-03-08 | 2020-02-14 | 中国石油天然气集团有限公司 | High-power direct-current voltage-stabilized power supply for intelligent drilling tool |
| CN111502646A (en) * | 2020-04-30 | 2020-08-07 | 中国石油天然气集团有限公司 | Rotary guide instruction downloading system based on motor frequency conversion control |
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Application publication date: 20110427 |