CN102817607A - Underground communication system of continuous pipe drill - Google Patents
Underground communication system of continuous pipe drill Download PDFInfo
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- CN102817607A CN102817607A CN2012102984203A CN201210298420A CN102817607A CN 102817607 A CN102817607 A CN 102817607A CN 2012102984203 A CN2012102984203 A CN 2012102984203A CN 201210298420 A CN201210298420 A CN 201210298420A CN 102817607 A CN102817607 A CN 102817607A
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- 238000004891 communication Methods 0.000 title claims abstract description 32
- 230000006854 communication Effects 0.000 title claims abstract description 32
- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- 239000013307 optical fiber Substances 0.000 claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 11
- 239000000835 fiber Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 abstract description 26
- 238000010276 construction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 13
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- 239000012530 fluid Substances 0.000 description 9
- 238000005259 measurement Methods 0.000 description 4
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000010125 resin casting Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention discloses an underground communication system of a continuous pipe drill. The underground communication system comprises an optical fiber cable (1), an optical fiber connector (2), an underground communication device (3), at least one front-end sensor (4) and at least one front-end control mechanism (5), wherein the underground communication device (3) consists of a compression-resistant outer cylinder (9) and an internal circuit which is packed in the compression-resistant outer cylinder (9); one end of the optical fiber cable (1) is connected with a ground communication terminal (10), and the other end of the optical fiber cable (1) is connected with a photoelectric conversion module (6) through the optical fiber connector (2); each front-end sensor (4) is connected with an acquired signal input end of a micro controller MCU (8) respectively; and each front-end control mechanism (5) is connected with a control signal output end of the micro controller (8) respectively. According to the underground communication system, a reliable informationized data basis is provided for drilling construction under high-temperature and high-voltage underground environments, the accuracy, the efficiency and the safety of drilling control are improved, and the drilling cost is reduced.
Description
Technical field
The present invention relates to communication system under a kind of continuous pipe bit motor-pumped well.
Background technology
In field of petroleum exploitation, drilling well is a complex engineering, can produce bulk information, and drilling informationization is the necessary condition that ensures drilling safety, quality and efficient.Collection for drilling information can realize comprehensive assessment and real-time drilling Engineering Control to drillng operation, has improved the precision and the efficient of drilling well control, has reduced drilling cost.
At present, the method that realizes communication under the continuous pipe bit motor-pumped well has electromagnetic wave method, sonic method and drilling fluid pulse method etc.The electromagnetic wave transfer of data be signal with low frequency from the underground ground of passing to, this method is a transmitted in both directions, can transmission up and down in well, do not need circulation of drilling fluid.Its data transmission capabilities is close with the drilling fluid pulse remote measurement.The advantage of this method is that data transmission bauds is very fast, is suitable for transmission orientation and geologic information parameter in the wellbore constructions such as conventional mud, foam mud, air drilling, laser drill; Shortcoming is that stratum media is bigger to the influence of signal, and the stratum electromagnetic wave of low-resistivity can not pass, and the distance of electromagnetic transmission is also limited, is not suitable for the ultradeep well construction, can only in 3000 meters dark wells, transmit data at most at present.Sonic method is a kind of transmission method that transmits sound wave or seismic signal through drilling rod.The sound wave remote measurement can significantly improve data transmission rate, makes with boring data transmission rate to improve an one magnitude, reaches 100bit/s.The same mud circulation that do not need of sound wave remote measurement with the electromagnetic wave remote measurement, still, the low intensity signal that well produces and make very difficulty of detectable signal by the acoustic noise that drilling equipment produces.The drilling fluid pulse method is that the downhole controller through MWD changes the parameter that the various sensors in down-hole measure into the signal of telecommunication; Change the drilling fluid pulse signal into after commanding impulse generator with the various signal codings in down-hole then; Drilling well fluid column through in the drilling rod upwards sends to ground transaucer, signal interpretation and data handling system, carries out the picking up of signal, changes, deciphers, processing etc.
Widespread usage, technological comparative maturity is the drilling fluid pulse method at present, because compare additive method, the drilling fluid pulse method is comparatively simple, little to normal drillng operation influence.Pressure pulse transmits through fluid column in the drilling rod with the speed of 1200～1500m/s earthward, and each parts of down-hole all are contained in the non magnetic drill collar.Because hold the parts of MWD instrument, so its internal diameter is bigger than common drill collar.
Summary of the invention
The objective of the invention is to solve the deficiency of prior art; Provide a kind of based on fiber optic cables, down-hole-terrestrial information high-speed bidirectional transmission channel can be provided, factor affected by environment is little; Have well high temperature resistant, high voltage performance; Antijamming capability is strong, and transmitting range is far away, communication system under the fast continuous pipe bit motor-pumped well of transmission speed.
The objective of the invention is to realize through following technical scheme: communication system under a kind of continuous pipe bit motor-pumped well, it comprises fiber optic cables, optical fiber connector, underground communica tion device, at least one front end sensors and at least one front-end control mechanism; Described underground communica tion device is made up of resistance to compression urceolus and the internal circuit that is encapsulated in the resistance to compression urceolus; Internal circuit comprises photoelectric conversion module, modulation module and microcontroller MCU; The output of photoelectric conversion module links to each other with the input of modulation module, and the output of modulation module is connected with microcontroller MCU; One end of fiber optic cables is connected with the ground communication terminal, and the other end is connected with photoelectric conversion module through optical fiber connector; Each front end sensors links to each other with the acquired signal input of microcontroller MCU respectively, and each front-end control mechanism is connected with the control signal output of microcontroller respectively.
Fiber optic cables of the present invention are high-strength corrosion-resisting, resistant to elevated temperatures composite rope.
Resistance to compression urceolus of the present invention is made up of resistance to compression tube, insulating layer and installation tube from outside to inside, and insulating layer is close between the external surface of inner surface and installation tube of resistance to compression tube.
Modulation module of the present invention comprises modulation circuit and demodulator circuit; Described modulation circuit comprises digital signal processor a, tunable receiver and Direct Digital Synthesizer a; The output of tunable receiver is connected with the input of magnitude comparator with digital signal processor a through wave filter successively; The output of digital signal processor a links to each other with the input of Direct Digital Synthesizer a, and the output of Direct Digital Synthesizer a is connected with the input of transformer through power amplifier; Described demodulator circuit comprises digital signal processor b, multiplication chip and reception antenna; Reception antenna links to each other with the end of catching of multiplication chip through the amplitude amplifier; The output of multiplication chip links to each other with the input of reshaper with digital signal processor b through bandpass filter successively; The output of digital signal processor b is connected with the input of Direct Digital Synthesizer b, and the output of Direct Digital Synthesizer b is connected with the input of multiplication chip.
The invention has the beneficial effects as follows: this communication system can gather and handle the various instrument information in down-hole under the adverse circumstances of high temperature, high pressure; And the front end construction mechanism controlled; And but continuous operation is more than 200 hours; For wellbore construction provides reliable information-based data foundation, improved precision, efficient and the safety of drilling well control, reduced drilling cost; In addition, native system is broken the monopolization of the external drilling well communication technology, greatly reduces financial cost, and can satisfy the needs of economical and efficient exploitation oil-gas reservoir.
Description of drawings
Fig. 1 forms structural representation for communication system of the present invention;
Fig. 2 is the structural representation of resistance to compression urceolus of the present invention;
Fig. 3 forms the structural representation block diagram for modulation circuit of the present invention;
Fig. 4 forms the structural representation block diagram for demodulator circuit of the present invention;
Among the figure, 1-fiber optic cables, 2-optical fiber connector, 3-underground communica tion device, 4-front end sensors; 5-front-end control mechanism, 6-photoelectric conversion module, 7-modulation module, 8-microcontroller MCU, 9-resistance to compression urceolus; 10-ground communication terminal, 11-resistance to compression tube, 12-insulating layer, 13-installation tube.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, communication system under a kind of continuous pipe bit motor-pumped well, it comprises fiber optic cables 1, optical fiber connector 2, underground communica tion device 3, at least one front end sensors 4 and at least one front-end control mechanism 5; Fiber optic cables 1 adopt high-strength corrosion-resisting, resistant to elevated temperatures composite rope, with guarantee fiber optic cables 1 under the abominable subsurface environment of high temperature, high pressure, deep-etching normally, use stably.Underground communica tion device 3 is made up of resistance to compression urceolus 9 and the internal circuit that is encapsulated in the resistance to compression urceolus 9; Internal circuit comprises photoelectric conversion module 6, modulation module 7 and microcontroller MCU8; The output of photoelectric conversion module 6 links to each other with the input of modulation module 7, and the output of modulation module 7 is connected with microcontroller MCU8; One end of fiber optic cables 1 is connected with ground communication terminal 10; The other end is connected with photoelectric conversion module 6 through optical fiber connector 2; Optical fiber connector 2 adopts high temperature resistant, high voltage bearing material to process; By shell and main body buckle ways of connecting, make manufacturing procedure simple, and can effectively shield the interference of outside noise signal; Each front end sensors 4 links to each other with the acquired signal input of microcontroller MCU8 respectively, and each front-end control mechanism 5 is connected with the control signal output of microcontroller 8 respectively.
As shown in Figure 2, resistance to compression urceolus 9 is made up of resistance to compression tube 11, insulating layer 12 and installation tube 13 from outside to inside, and insulating layer 12 is close between the external surface of inner surface and installation tube 13 of resistance to compression tube 11; Wherein, resistance to compression tube 11 adopts the metal material of high-strength anti-corrosion erosion, and to guarantee the compressive property and the corrosion-resistant intensity of resistance to compression urceolus 9, insulating layer 12 can adopt the resin casting glue, and installation tube 13 can adopt metal material such as aluminium, copper.
Modulation module 7 comprises modulation circuit and demodulator circuit: as shown in Figure 3; Modulation circuit comprises digital signal processor a, tunable receiver and Direct Digital Synthesizer a; The output of tunable receiver is connected with the input of magnitude comparator with digital signal processor a through wave filter successively; The output of digital signal processor a links to each other with the input of Direct Digital Synthesizer a, and the output of Direct Digital Synthesizer a is connected with the input of transformer through power amplifier; As shown in Figure 4; Demodulator circuit comprises digital signal processor b, multiplication chip and reception antenna; Reception antenna links to each other with the end of catching of multiplication chip through the amplitude amplifier; The output of multiplication chip links to each other with the input of reshaper with digital signal processor b through bandpass filter successively, and the output of digital signal processor b is connected with the input of Direct Digital Synthesizer b, and the output of Direct Digital Synthesizer b is connected with the input of multiplication chip.
Printed board in this programme, scolding tin and each component all adopt resistant to elevated temperatures model, can both in the subsurface environment of high pressure, high temperature, carry out steady operation to guarantee each link in the whole communication system.
Claims (4)
1. communication system under the continuous pipe bit motor-pumped well, it is characterized in that: it comprises fiber optic cables (1), optical fiber connector (2), underground communica tion device (3), at least one front end sensors (4) and at least one front-end control mechanism (5);
Described underground communica tion device (3) is made up of resistance to compression urceolus (9) and the internal circuit that is encapsulated in the resistance to compression urceolus (9); Internal circuit comprises photoelectric conversion module (6), modulation module (7) and microcontroller MCU (8); The output of photoelectric conversion module (6) links to each other with the input of modulation module (7), and the output of modulation module (7) is connected with microcontroller MCU (8);
One end of fiber optic cables (1) is connected with ground communication terminal (10), and the other end is connected with photoelectric conversion module (6) through optical fiber connector (2);
Each front end sensors (4) links to each other with the acquired signal input of microcontroller MCU (8) respectively, and each front-end control mechanism (5) is connected with the control signal output of microcontroller (8) respectively.
2. communication system under a kind of continuous pipe bit motor-pumped well according to claim 1 is characterized in that: described fiber optic cables (1) are high-strength corrosion-resisting, resistant to elevated temperatures composite rope.
3. communication system under a kind of continuous pipe bit motor-pumped well according to claim 1; It is characterized in that: described resistance to compression urceolus (9) is made up of resistance to compression tube (11), insulating layer (12) and installation tube (13) from outside to inside, and insulating layer (12) is close between the external surface of inner surface and installation tube (13) of resistance to compression tube (11).
4. communication system under a kind of continuous pipe bit motor-pumped well according to claim 1; It is characterized in that: described modulation module (7) comprises modulation circuit and demodulator circuit; Described modulation circuit comprises digital signal processor a, tunable receiver and Direct Digital Synthesizer a; The output of tunable receiver is connected with the input of magnitude comparator with digital signal processor a through wave filter successively; The output of digital signal processor a links to each other with the input of Direct Digital Synthesizer a, and the output of Direct Digital Synthesizer a is connected with the input of transformer through power amplifier; Described demodulator circuit comprises digital signal processor b, multiplication chip and reception antenna; Reception antenna links to each other with the end of catching of multiplication chip through the amplitude amplifier; The output of multiplication chip links to each other with the input of reshaper with digital signal processor b through bandpass filter successively; The output of digital signal processor b is connected with the input of Direct Digital Synthesizer b, and the output of Direct Digital Synthesizer b is connected with the input of multiplication chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102984203A CN102817607A (en) | 2012-08-21 | 2012-08-21 | Underground communication system of continuous pipe drill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102984203A CN102817607A (en) | 2012-08-21 | 2012-08-21 | Underground communication system of continuous pipe drill |
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| CN102817607A true CN102817607A (en) | 2012-12-12 |
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| CN2012102984203A Pending CN102817607A (en) | 2012-08-21 | 2012-08-21 | Underground communication system of continuous pipe drill |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291286A (en) * | 2013-06-04 | 2013-09-11 | 济南新吉纳远程测控有限公司 | Control system and control method for controlling down-hole instrument of wireless measurement-while-drilling instrument from ground by aid of drilling fluid |
| CN107730871A (en) * | 2017-10-23 | 2018-02-23 | 长江大学 | A kind of downhole data communication system of well logging apparatus |
| CN110485922A (en) * | 2019-09-02 | 2019-11-22 | 中国石油天然气集团有限公司 | A kind of well dynamic and bi-directional communication system and its application method |
| CN110630252A (en) * | 2018-06-21 | 2019-12-31 | 中国石油化工股份有限公司 | Measurement while drilling system and method for coiled tubing drilling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080066960A1 (en) * | 2006-09-15 | 2008-03-20 | Baker Hughes Incorporated | Fiber Optic Sensors in MWD Applications |
| CN101408101A (en) * | 2006-12-29 | 2009-04-15 | 普拉德研究及开发股份有限公司 | Wellbore telemetry system and method |
| CN201259558Y (en) * | 2008-09-10 | 2009-06-17 | 江苏通鼎光电股份有限公司 | Central beam tube type sensing optical cable |
| CN102134992A (en) * | 2010-01-27 | 2011-07-27 | 罗仁泽 | High-speed wired duplex communication method and device for information between well and ground |
| CN202914087U (en) * | 2012-08-21 | 2013-05-01 | 成都宏天电传工程有限公司 | Underground communication system for continuous pipe drilling machine |
-
2012
- 2012-08-21 CN CN2012102984203A patent/CN102817607A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080066960A1 (en) * | 2006-09-15 | 2008-03-20 | Baker Hughes Incorporated | Fiber Optic Sensors in MWD Applications |
| CN101408101A (en) * | 2006-12-29 | 2009-04-15 | 普拉德研究及开发股份有限公司 | Wellbore telemetry system and method |
| CN201259558Y (en) * | 2008-09-10 | 2009-06-17 | 江苏通鼎光电股份有限公司 | Central beam tube type sensing optical cable |
| CN102134992A (en) * | 2010-01-27 | 2011-07-27 | 罗仁泽 | High-speed wired duplex communication method and device for information between well and ground |
| CN202914087U (en) * | 2012-08-21 | 2013-05-01 | 成都宏天电传工程有限公司 | Underground communication system for continuous pipe drilling machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291286A (en) * | 2013-06-04 | 2013-09-11 | 济南新吉纳远程测控有限公司 | Control system and control method for controlling down-hole instrument of wireless measurement-while-drilling instrument from ground by aid of drilling fluid |
| CN103291286B (en) * | 2013-06-04 | 2016-05-11 | 济南新吉纳远程测控股份有限公司 | Drilling fluid wireless drilling instrument ground is in the face of control system and the control method of downhole instrument |
| CN107730871A (en) * | 2017-10-23 | 2018-02-23 | 长江大学 | A kind of downhole data communication system of well logging apparatus |
| CN110630252A (en) * | 2018-06-21 | 2019-12-31 | 中国石油化工股份有限公司 | Measurement while drilling system and method for coiled tubing drilling |
| CN110630252B (en) * | 2018-06-21 | 2022-09-23 | 中国石油化工股份有限公司 | Measurement while drilling system and method for coiled tubing drilling |
| CN110485922A (en) * | 2019-09-02 | 2019-11-22 | 中国石油天然气集团有限公司 | A kind of well dynamic and bi-directional communication system and its application method |
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