CN101392642B - Underground data wireless transmission method of gas drilling while drilling - Google Patents
Underground data wireless transmission method of gas drilling while drilling Download PDFInfo
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- CN101392642B CN101392642B CN 200810046435 CN200810046435A CN101392642B CN 101392642 B CN101392642 B CN 101392642B CN 200810046435 CN200810046435 CN 200810046435 CN 200810046435 A CN200810046435 A CN 200810046435A CN 101392642 B CN101392642 B CN 101392642B
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- 238000005553 drilling Methods 0.000 title claims abstract description 73
- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 29
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000000605 extraction Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000008054 signal transmission Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
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- 239000011435 rock Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention provides a underground data wireless transmission method while drilling for gas drilling, belongs to a test data transmission method while drilling for gas drilling in the field of oil and gas extraction, and aims to solve the problem that the underground test data while drilling for gas drilling can not be transmitted in real time. The method comprises the following steps: the upper part of a drill is provided with a sensor, an analog-to-digital converter, a wireless network bridge and a transmitting antenna; signals acquired by the sensor are converted to digital signals by the analog-to-digital converter, and sent to the wireless network bridge; the wireless network bridge couples the digital signals into a drilling toll in a microwave mode through the transmitting antenna; the coupled microwave signals are transmitted to the ground along the drilling toll and received by a ground wireless network bridge; the signals are transmitted to a computer by the ground wireless network bridge and processed by the computer; the inside of the drilling toll is provided with a wireless network repeater; a check valve plate in the drilling tool is replaced by a non-metal valve plate for the microwave signals to pass; and the microwave signals are transmitted to the wireless network repeater in a ground square drill stem, and the wireless network repeater transmits the microwave signals to the ground wireless network bridge.
Description
Technical field
The invention belongs to the transmission method that is used for the gas drilling while drilling test data in the oil-gas mining field.
Background technology
Utilize gas drilling to obtain a large amount of propagation and employments in recent years, it is increasing substantially rate of penetration, is reducing the pollution of oil-gas Layer and in time find aspect oil-gas Layer, outstanding contribution is arranged, but it also has a lot of problems, the scope of application is narrower, and distinct issues are that the stratum water outlet causes hole collapse, down-hole blasting and hole trajectory control.
Down-hole blasting problem and stratum water outlet can be 200610021853.9 by number of patent application, name is called the continuous monitoring method of state " a kind of gas drilling down-hole " disclosed method monitoring of application for a patent for invention, but apply for that disclosed method is at the ground indirect monitoring, directly state under testing well.
High the pressure of the drill uses rock bit to improve rate of penetration, and the hole deviation control and measurement is the comparison distinct issues, and especially gas bores the measurement while drilling of directional well, horizontal well, and its transfer of data is key issue.
Measurement while drilling in the mud well is to utilize the mud-pulse signal transmission, this technology is very ripe, be can not be applied in gas drilling, that replace it is electromagnetic impulse signal transmission technology (EMMWD-Electromagnetic Measurement While Dri1ling).EMMWD utilizes ultra-low frequency electromagnetic wave directly to pass the stratum to arrive geoceiver, if well depth is dark, formation impedance is less, ultra-low frequency electromagnetic wave is attenuated in the process of penetrating ground, can not arrive ground is effectively received, signal transmission distance is generally 700m～3200m, and use Antenna extender technology and relaying technique can reach the transmission range of practical application, but its difficulty is larger, message transmission rate is lower, can not real-time Transmission imaging logging information.
In addition, downhole stored formula measurement while-drilling instrument can not real-time transmission data, utilizes the sonic transmissions technology, difficult with solve drilling well vibrations noise problem.
Summary of the invention
The objective of the invention is to solve the problem that underground measuring while drilling data in existing gas drilling can not real-time Transmission, a kind of wireless method that can be applicable to the transmission of gas drilling while drilling test data is provided, transmitting power is less, have the less electric power system in assembly structure and space, realize that transmitting in real time underground test data at a high speed processes to ground.
Purpose of the present invention realizes by following technical proposals:
Underground data wireless transmission method of gas drilling while drilling comprises the steps:
A. sensor installation, analog-digital converter, wireless bridge and transmitting antenna above drill bit;
B. the signal with the sensor collection is converted to data signal through analog-digital converter, then sends into wireless bridge;
C. wireless bridge is coupled to above-mentioned data signal in drilling tool with microwave mode by transmitting antenna;
D. the microwave signal through step c coupling is transferred to ground along drilling tool, is received by the terrestrial wireless network bridge joint;
E. by the terrestrial wireless bridge, signal is transferred to computer, by computer, signal is processed.
Described sensor comprises pressure sensor, temperature pick up, dust water content sensor and electronic compass.Pressure sensor testing well bottom pressure, judgement hole cleaning situation; Temperature pick up test drilling tool annular space gas temperature, if the down-hole has occured to fire, the annular space gas temperature can sharply increase, and judges with this degree of firing, and the decision-making fire extinguishing of whether stopping the supple of gas or steam; Dust water content sensor formation testing water outlet situation; Electronic compass measurement well inclination angle, azimuth and tool face azimuth are realized the measurement in real time of directional well track or control.
Described wireless bridge and terrestrial wireless bridge are the double-frequency wireless bridge, and its frequency is respectively 2.4GHz, 5.8GHz, and its operating frequency is determined according to the drilling tool internal diameter by computer.
Described drilling tool inside is provided with wireless network repeater, with in microwave signature attenuation to can not effectively receive the time, by relay forwarding, the transmission of remaining valid.
Single current valve block in described drilling tool changes the nonmetal valve block that microwave signal can be passed through into.
Described nonmetal valve block is the valve block that pottery or nylon are made.
In described steps d, microwave signal is transferred to the ground kelly bar, is transmitted to the terrestrial wireless bridge by the wireless network repeater in kelly bar.
In described drilling tool, every 1000 meter amperes fill 1 wireless network repeater.
Described sensor, analog-digital converter, wireless bridge and transmitting antenna are assemblied in the down-hole and endure in short circuit without the magnetic brill, and the down-hole is bored very without magnetic and also is provided with the battery power supply system of powering to above-mentioned parts in short circuit.
The present invention adopts said method, sensor installation collection signal above drill bit, and by analog-digital converter, wireless bridge and transmitting antenna, the signal that gathers is converted to data signal and is converted to again microwave signal, pass to computer after the wireless bridge that utilizes drilling tool to be transferred to ground as guide directional receives and process; The Wireless microwave signal coupling is transmitted in drilling tool, and having solved the omnidirectional transmission of existing wireless devices causes the shorter problem of transmission range on the one hand, can utilize existing wireless transmission component on the other hand, has following beneficial effect:
(1) without the mud wave signal transmission, can realize the real-time Transmission of measuring while drilling data under the gas drilling condition;
(2) signal transmission apparatus can be used for reference ripe radio network technique (WLAN), compares with EMMWD, and transmitting power is reduced to the mW level by the 100W level, can use more small-sized powered battery;
(3) can realize the high-speed bidirectional traffic rate of 54Mbps;
(4) can realize the Control ﹠ data acquisition of underground equipment.
Description of drawings
Fig. 1 is the structural representation of device that the present invention adopts;
Number in the figure: the 1st, pressure sensor, the 2nd, temperature pick up, the 3rd, dust water content sensor, the 4th, electronic compass, the 5th, analog-digital converter, the 6th, wireless bridge, the 7th, transmitting antenna, the 8th, wireless network repeater and the antenna of ball-and-seat, the 9th, wireless network repeater and the antenna at kelly bar place, the 10th, terrestrial wireless bridge and antenna, the 11st, computer, the 12nd, battery power supply system.
The specific embodiment
The present invention is further illustrated below in conjunction with specific embodiments and the drawings.
As shown in Figure 1, the device that adopts of underground data wireless transmission method of gas drilling while drilling comprise the down-hole that is arranged on the drill bit top without magnetic bore short circuit very, be arranged on the place of ball-and-seat in drilling tool wireless network repeater and antenna 8, be arranged on wireless network repeater and antenna 9, terrestrial wireless bridge and antenna 10 and the computer 11 at kelly bar place.
The down-hole is bored without magnetic and is endured the battery power supply system 12 that is provided with pressure sensor 1, temperature pick up 2, dust water content sensor 3, electronic compass 4, analog-digital converter 5, wireless bridge 6, transmitting antenna 7 in short circuit and powers to above-mentioned parts.
Pressure sensor 1 testing well bottom pressure, judgement hole cleaning situation; Temperature pick up 2 test drilling tool annular space gas temperatures, if the down-hole has occured to fire, the annular space gas temperature can sharply increase, and judges with this degree of firing, and the decision-making fire extinguishing of whether stopping the supple of gas or steam; Dust water content sensor 3 formation testing water outlet situations; Electronic compass 4 is measured well inclination angle, azimuth and tool face azimuth, realizes that the directional well track measures in real time or control.
The microwave signal that transmitting antenna 7 sends can be received and forward by the antenna of terrestrial wireless bridge and antenna 10, and namely terrestrial wireless bridge and antenna 10 are complementary with the microwave signal that transmitting antenna 7 sends.
Above-mentioned wireless bridge and terrestrial wireless bridge are all the double-frequency wireless bridges, and its frequency is respectively 2.4GHz, 5.8GHz, and its operating frequency is determined according to the drilling tool internal diameter by computer.
Adopt the underground data wireless transmission method of gas drilling while drilling step of said apparatus as follows:
A., the down-hole that is integrated with pressure sensor 1, temperature pick up 2, dust water content sensor 3, electronic compass 4, analog-digital converter 5, wireless bridge 6, transmitting antenna 7 and battery power supply system 12 is installed above drill bit bores very short circuit without magnetic; And change the single current valve block in drilling tool into nonmetal valve block that microwave signal can be passed through, the valve block of making as pottery or nylon; In drilling tool, every 1000 meter amperes fill 1 wireless network repeater and antenna 8 of crossing ball-and-seat; Kelly bar place, ground arranges wireless network repeater and antenna 9; Terrestrial wireless bridge and antenna 10 and computer 11 are set on ground;
B. the signal with above-mentioned each sensor collection is converted to data signal through analog-digital converter 5, then sends into wireless bridge 6;
C. wireless bridge 6 is coupled to above-mentioned data signal in drilling tool with microwave mode by transmitting antenna 7;
D. transmit along drilling tool through the microwave signal of step c coupling, be forwarded to wireless network repeater and the antenna 9 at kelly bar place, ground by wireless network repeater and antenna 8 through the ball-and-seat with nonmetal valve block, then be forwarded to terrestrial wireless bridge and antenna 10 receptions by wireless network repeater and antenna 9;
E. by the terrestrial wireless bridge, signal is transferred to computer 11, by computer, signal is processed.
Microwave signal first will be endured part by the less brill of internal diameter in transmitting procedure, and approximately 100～300 meters, then pass to the larger drilling rod part of internal diameter, pass at last the less kelly bar part of internal diameter.
According to waveguide theory, the transmittability of microwave signal and transmission range are relevant with the drilling tool internal diameter, therefore, according to drilling tool internal diameter size, should adopt different microwave frequencies.
The present embodiment adopts the double-frequency wireless bridge, can be arranged to 2.4GHz (802.11b/g) or 5.8GHz (802.11a) pattern by ground-based computer 11 easily.Every 1000 meters have been used 1 wireless network repeater and antenna 8 in whole microwave signal transmitting procedure, and each wireless network repeater and antenna 8 can use the dual system automatic network-building, reduce the chain network system failure rate.
In whole chain network communication system, use relaying more, but little due to wireless network repeater equipment, antenna is little, power consumption is little, cost is low and the wireless network equipment management technology maturation, therefore can not affect because trunking the application of this method.
Claims (7)
1. underground data wireless transmission method of gas drilling while drilling, is characterized in that, comprises the steps:
A. sensor installation, analog-digital converter, wireless bridge and transmitting antenna above drill bit;
B. the signal with the sensor collection is converted to data signal through analog-digital converter, then sends into wireless network
Bridge;
C. wireless bridge is coupled to above-mentioned data signal in drilling tool with microwave mode by transmitting antenna, and the single current valve block in described drilling tool is the nonmetal valve block that microwave signal can be passed through;
D. the microwave signal through step c coupling is transferred to ground along drilling tool with the guide directional circulation way, is received by the terrestrial wireless network bridge joint;
E. by the terrestrial wireless bridge, signal is transferred to computer, by computer, signal is processed.
2. underground data wireless transmission method of gas drilling while drilling as claimed in claim 1, is characterized in that,
Described sensor comprises pressure sensor, temperature pick up, dust water content sensor and electronic compass.
3. underground data wireless transmission method of gas drilling while drilling as claimed in claim 1, is characterized in that,
Described drilling tool inside is provided with wireless network repeater, with in microwave signature attenuation to can not effectively receive the time,
By relay forwarding, the transmission of remaining valid.
4. underground data wireless transmission method of gas drilling while drilling as claimed in claim 1, is characterized in that,
Described nonmetal valve block is the valve block that pottery or nylon are made.
5. underground data wireless transmission method of gas drilling while drilling as claimed in claim 1, is characterized in that,
In described steps d, microwave signal is transferred to the ground kelly bar, by the wireless network repeater in kelly bar
Be transmitted to the terrestrial wireless bridge.
6. underground data wireless transmission method of gas drilling while drilling as claimed in claim 4, is characterized in that,
In described drilling tool, every 1000 meter amperes fill 1 wireless network repeater.
7. underground data wireless transmission method of gas drilling while drilling as claimed in claim 1, is characterized in that,
Described sensor, analog-digital converter, wireless bridge and transmitting antenna are assemblied in the down-hole and endure in short circuit without the magnetic brill,
The down-hole is bored very without magnetic and also is provided with the battery power supply system of powering to above-mentioned parts in short circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810046435 CN101392642B (en) | 2008-10-31 | 2008-10-31 | Underground data wireless transmission method of gas drilling while drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200810046435 CN101392642B (en) | 2008-10-31 | 2008-10-31 | Underground data wireless transmission method of gas drilling while drilling |
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| CN101392642A CN101392642A (en) | 2009-03-25 |
| CN101392642B true CN101392642B (en) | 2013-06-19 |
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Families Citing this family (12)
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| US9590603B1 (en) | 2007-08-31 | 2017-03-07 | Louisiana Tech Research Corporation | Beam steerable UWB radar |
| US8350570B2 (en) | 2007-08-31 | 2013-01-08 | Louisiana Tech Research Foundation; a division of Lousiana Tech University Foundation, Inc. | Pipe survey method using UWB signal |
| CA2772848C (en) | 2011-03-29 | 2015-12-08 | Erez Allouche | Universal impedance probe for detection of side-connections through thermoplastic, thermosetting and cementitious liners |
| CN102231696B (en) * | 2011-05-23 | 2014-02-19 | 中国石油大学(华东) | Method for packaging datagram message of measurement while drilling (WMD) system |
| US9151837B2 (en) | 2011-09-27 | 2015-10-06 | Louisiana Tech University Research Foundation; A Division Of Louisiana Tech University Foundation, Inc. | Sensor fusion framework using multiple sensors to assess buried structures |
| CN103061754B (en) * | 2011-10-19 | 2016-09-14 | 中国石油化工股份有限公司 | A kind of electromagnetic measurement while drilling system wireless remote receiver and measuring method thereof and application |
| CN103266886A (en) * | 2013-05-15 | 2013-08-28 | 中国石油化工股份有限公司 | While drilling data relay communication method for gas drilling |
| CN105201489B (en) * | 2015-09-17 | 2016-08-17 | 西南石油大学 | In gas drilling drill string, sound wave is with boring wireless data transmission method |
| CN105386755B (en) * | 2015-11-25 | 2018-04-03 | 中国石油集团钻井工程技术研究院 | Signal coupling apparatus based on drill string waveguide |
| CN106448120A (en) * | 2016-12-09 | 2017-02-22 | 中国地质大学（武汉） | Wireless relay transmission system for underground temperature pressure detection |
| CN111155985A (en) * | 2019-12-31 | 2020-05-15 | 陕西明泰电子科技发展有限公司 | Communication method used in drill rod and drilling tool communication device |
| CN116877063B (en) * | 2023-07-14 | 2024-05-31 | 中国科学院武汉岩土力学研究所 | Deep goaf while-drilling system and communication quality evaluation method |
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