CN114575757A - Intelligent drill column and underground data transmission system - Google Patents
Intelligent drill column and underground data transmission system Download PDFInfo
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- CN114575757A CN114575757A CN202011372783.8A CN202011372783A CN114575757A CN 114575757 A CN114575757 A CN 114575757A CN 202011372783 A CN202011372783 A CN 202011372783A CN 114575757 A CN114575757 A CN 114575757A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 32
- 230000005611 electricity Effects 0.000 claims description 15
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- 238000009434 installation Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 230000007175 bidirectional communication Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 description 22
- 239000012530 fluid Substances 0.000 description 9
- 239000011241 protective layer Substances 0.000 description 9
- 230000006854 communication Effects 0.000 description 8
- 238000004891 communication Methods 0.000 description 8
- 238000007726 management method Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 6
- 230000002457 bidirectional effect Effects 0.000 description 4
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- 230000009471 action Effects 0.000 description 2
- 238000013500 data storage Methods 0.000 description 2
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- 239000004593 Epoxy Substances 0.000 description 1
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- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
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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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/0085—Adaptations of electric power generating means for use in boreholes
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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
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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
- E21B47/13—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 by electromagnetic energy, e.g. radio frequency
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Remote Sensing (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Geophysics (AREA)
- Electromagnetism (AREA)
- Earth Drilling (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention relates to an intelligent drill column and an underground data transmission system, wherein the intelligent drill column comprises a drill column body, a nano generator, a sensor unit, a power supply unit and a main control unit; the upper drill string joint is arranged at one end of the drill string pipe body, the lower drill string joint is arranged at the other end of the drill string pipe body, a plurality of mounting unit holes are formed in the lower drill string joint and/or the upper drill string joint, and the nano generator, the sensor unit, the power supply unit and the main control unit are respectively and independently located in the corresponding mounting unit holes; an upper antenna mounting ring groove is formed in the upper connector of the drill string, a lower antenna mounting ring groove is formed in the lower connector of the drill string, an upper coil is arranged in the upper antenna mounting ring groove, and a lower coil is arranged in the lower antenna mounting ring groove; the upper coil and the lower coil are electrically connected with the main control unit through a second cable; the nano generator, the sensor unit, the power supply unit and the main control unit are electrically connected through a first cable; data measurement and transmission can be realized.
Description
Technical Field
The invention relates to the field of oil and gas field exploration, in particular to an intelligent drill column and an underground data transmission system.
Background
With the rapid development of the petroleum industry, the easy-to-extract oil gas reservoirs are gradually reduced, more ground surfaces are developed to deep land or areas with complex structures, deep sea or beach sea areas at present and in future for the exploration and development of oil and gas fields, and the exploration and development of the difficult-to-use oil and gas reservoirs provide serious challenges for the drilling and production technology and other technologies;
at present, the development of downhole tools is fast, 4 types of data which can be collected underground have about 40-50 parameters, and the technology of a ground computer intelligent expert system is mature and easy to realize; and the two-way communication system connecting the downhole and the ground becomes a technical bottleneck restricting intelligent drilling. Therefore, the development of a new generation of high-speed transmission system is of great significance for constructing an intelligent drilling space network system.
Disclosure of Invention
The invention aims to: aiming at the problem that the prior art can realize the functions of data measurement and data transmission during exploration, an intelligent drill column and an underground data transmission system are provided.
In order to achieve the purpose, the invention adopts the technical scheme that:
an intelligent drill string comprises a drill string body, a nano generator, a sensor unit, a power supply unit and a main control unit;
the drill string body comprises a drill string pipe body, an upper drill string joint and a lower drill string joint, the upper drill string joint is arranged at one end of the drill string pipe body, the lower drill string joint is arranged at the other end of the drill string pipe body, a plurality of mounting unit holes are formed in the lower drill string joint and/or the upper drill string joint, and the nano generator, the sensor unit, the power supply unit and the main control unit are respectively and independently located in the corresponding mounting unit holes;
an upper antenna mounting ring groove is formed in the upper connector of the drill string, a lower antenna mounting ring groove is formed in the lower connector of the drill string, an upper coil is arranged in the upper antenna mounting ring groove, and a lower coil is arranged in the lower antenna mounting ring groove;
the upper coil and the lower coil are electrically connected with the main control unit through a second cable;
the nano-generator, the sensor unit, the power supply unit and the main control unit are electrically connected through a first cable.
An intelligent drill string is provided with a nano generator through the structure, the nano generator can generate electricity through fluctuating pressure formed when drilling fluid flows through a pipe column or mechanical vibration generated when the drill string drills, the nano generator, a sensor unit, a power supply unit and a main control unit are connected together through a first cable, electricity generated by the nano generator is transmitted to the power supply unit through the first cable, the power supply unit rectifies the electricity and transmits the rectified electricity to the main control unit and the sensor unit to be utilized, the sensor unit measures physical quantities of a current drill string or environment in real time, and the main control unit can read and store the physical quantities measured by the sensor unit and then realizes data transmission;
the mounting unit hole can provide mounting positions for mounting the nano generator, the power supply unit, the main control unit and the sensor unit;
the upper coil in the upper antenna mounting ring groove and the lower coil in the lower antenna mounting ring groove are electrically connected with the main control unit through a second cable, so that data transmission can be realized;
the intelligent drill string is provided with the nano generator, the power supply unit, the main control unit and the sensor unit, can realize the functions of data measurement and data transmission during exploration, and can improve the condition of severe technical requirements on drilling and production and the like during exploration of oil and gas fields in land deep layers or areas with complex structures, deep sea or beach areas.
As a preferred aspect of the present invention, a first cable passing hole is disposed between adjacent mounting unit holes, and the first cable is disposed in the first cable passing hole.
As a preferable aspect of the present invention, second wire passing holes are formed in the upper drill string joint, the lower drill string joint and/or the drill string pipe body, the second wire passing holes are formed along a length direction of the drill string body, and the second cables are arranged in the second wire passing holes.
In a preferred embodiment of the present invention, when only the upper drill string joint and the lower drill string joint are provided with the second wire passing holes, the inner surface of the drill string pipe body is filled with a compound protection layer. Through above-mentioned structure, drilling string body thickness is too thin when unsuitable for carrying out the trompil, it is used for the protection to set up the second cable at drilling string body internal surface to fill compound protective layer at drilling string body internal surface, the compound protective layer can insulate and have good heat-resisting and resistant scouring performance, simultaneously can be fine with the insulating material bonding on metal and second cable surface, secondly the compound protective layer still possesses the mobility of flowing automatically under the action of gravity, the compound flows along drilling string body length direction tiling during filling, can cover the second cable when the compound reaches the sufficient quantity, thereby form the protective layer to the second cable.
As a preferable aspect of the present invention, the upper antenna mounting ring groove is communicated with a corresponding one of the mounting unit holes through the second wire passing hole, and the lower antenna mounting ring groove is communicated with a corresponding one of the mounting unit holes through the second wire passing hole.
As a preferred aspect of the present invention, the power supply unit includes a power supply management module, and the power supply management module is configured to transmit electricity to the main control unit.
As a preferable aspect of the present invention, the power supply unit further includes a rectifying circuit for rectifying the alternating current generated by the nanogenerator into direct current. Through the structure, the power management module can rectify alternating current generated by the nano generator into usable direct current.
As a preferred scheme of the present invention, sealing assemblies are respectively disposed between the nano-generator, the sensor unit, the power supply unit, and the main control unit and the hole walls of the corresponding mounting unit holes. Through above-mentioned structure, seal assembly can prevent that drilling fluid from invading in the first line hole of crossing.
As a preferred embodiment of the present invention, the sealing assemblies are respectively disposed at two ends of the nano-generator, the sensor unit, the power supply unit, and the main control unit, and the first wire passing hole is disposed between adjacent sealing assemblies.
A downhole data transmission system comprises a surface system, a downhole system and at least two intelligent drill strings;
the adjacent intelligent drill strings are connected through an upper drill string connector or a lower drill string connector, and the ground system and the underground system are in bidirectional communication connection through the intelligent drill strings;
the intelligent drill string collects downhole data through the sensor unit and transmits the collected downhole data to the surface system, and the surface system can transmit corresponding control instructions to the downhole system through the intelligent drill string.
A ground system and an underground system can form a signal channel capable of transmitting information in a bidirectional high speed mode through an intelligent drill column through the structure, data transmission is carried out, ground instructions can be transmitted to the underground system through the intelligent drill column, and meanwhile the state of the underground system, the acquired information and the physical quantity acquired by the intelligent drill column through a sensor unit can be transmitted to the ground system through the intelligent drill column.
In a preferred embodiment of the present invention, the upper antenna mounting ring groove of one of the two adjacent smart drill strings is butted against the lower antenna mounting ring groove of the other smart drill string.
In a preferred embodiment of the present invention, the upper coil of one of the two adjacent intelligent drill strings is in communication connection with the lower coil of the other intelligent drill string.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
an intelligent drill string is provided with a nano generator through the structure, the nano generator can generate electricity through the fluctuating pressure formed when drilling fluid flows through a pipe column or the mechanical vibration generated when the drill string drills, the nano generator, a sensor unit, a power supply unit and a main control unit are connected together through a first cable, the electricity generated by the nano generator is transmitted to the power supply unit through the first cable, the power supply unit rectifies the electricity and transmits the rectified electricity to the main control unit and the sensor unit for utilization, the sensor unit measures the physical quantity of the current drill string or the environment in real time, and the main control unit can read and store the physical quantity measured by the sensor unit and then realizes the transmission of data;
the mounting unit hole can provide mounting positions for mounting the nano generator, the power supply unit, the main control unit and the sensor unit;
the upper coil in the upper antenna mounting ring groove and the lower coil in the lower antenna mounting ring groove are electrically connected with the main control unit through a second cable, so that data transmission can be realized;
the intelligent drill string is provided with the nano generator, the power supply unit, the main control unit and the sensor unit, can realize the functions of data measurement and data transmission during exploration, and can improve the condition of severe technical requirements on drilling and production and the like during exploration of oil and gas fields in land deep layers or areas with complex structures, deep sea or beach areas.
2. A ground system and an underground system can form a signal channel capable of transmitting information in a bidirectional high speed mode through an intelligent drill column through the structure, data transmission is carried out, ground instructions can be transmitted to the underground system through the intelligent drill column, and meanwhile the state of the underground system, the acquired information and the physical quantity acquired by the intelligent drill column through a sensor unit can be transmitted to the ground system through the intelligent drill column.
Drawings
FIG. 1 is a block diagram of a downhole data transmission system according to the present invention.
Fig. 2 is a schematic diagram of an intelligent drill string according to the present invention.
Fig. 3 is a partially enlarged view of the area a in fig. 2.
Fig. 4 is a partially enlarged view of the region I in fig. 2.
Fig. 5 is a sectional view taken along H-H in fig. 2.
Fig. 6 is a cross-sectional view taken along line C-C of fig. 2.
Fig. 7 is a schematic view of the connection between the mounting unit hole and the first wire passing hole.
FIG. 8 is a schematic diagram of a downhole data transmission system with a memory unit according to the present invention.
Fig. 9 is a schematic view of a configuration of three installation unit holes in the smart drill string according to the present invention.
Fig. 10 is a sectional view taken along F-F in fig. 9.
FIG. 11 is a schematic view of a six hole installation unit in an intelligent drill string according to the present invention
Fig. 12 is a sectional view taken along G-G in fig. 11.
Icon: 1-a drill string body; 11-upper drill string joint; 12-an upper coil; 13-a second wire passing hole; 14-a second cable; 15-a drill string tubular body; 16-a drill string lower sub; 17-lower coil; 18-a master control unit; 19-a power supply unit; 110-nano-generator; 111-a sensor unit; 112-a seal assembly; 113-a first wire passing hole; 114-a first cable; 115-lower antenna mounting ring groove; 116-upper antenna mounting ring groove; 117-mounting unit hole; 118-a storage unit; 119-a compound protective layer; 120-a drill string tubular body inner surface; 2-intelligent drill string.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1 to 12, the present embodiment provides an intelligent drill string 2, which includes a drill string body 1, a nano-generator 110, a sensor unit 111, a power supply unit 19, and a main control unit 18;
the drill string body 1 comprises an upper drill string joint 11, a lower drill string joint 16 and a drill string pipe body 15, wherein the upper drill string joint 11 is arranged at one end of the drill string pipe body 15, and the lower drill string joint 16 is arranged at the other end of the drill string pipe body 15;
a plurality of mounting unit holes 117 are formed in the drill string lower joint 16, and the nano generator 110, the sensor unit 111, the power supply unit 19 and the main control unit 18 are respectively and independently located in the corresponding mounting unit holes 117;
specifically, the number of the mounting unit holes 117 in fig. 4 and 5 is four, and the number of the mounting unit holes 117 may be arranged according to actual requirements and working conditions;
on the basis of the above, the mounting unit hole 117 can be simultaneously mounted on the drill string lower joint 16 and the drill string lower joint 11;
when the power demand is larger, the nano generator 110 and the power supply unit 19 can be arranged on the upper joint 11 of the drill string;
it is also possible to additionally provide a sensor unit 111 on the upper drill string joint 11, so that the sensor unit 11 on the upper drill string joint 11 and the sensor unit 111 on the lower drill string joint 16 can measure different physical parameters or measure the same physical parameter which is critical;
a first wire through hole 113 is formed between the adjacent mounting unit holes 117, a first cable 114 is arranged in the first wire through hole 113, and the first cable 114 is used for electrically connecting the nano-generator 110, the sensor unit 111, the power supply unit 19 and the main control unit 18;
specifically, the nano-generator 110 is a nano-piezoelectric generator or a nano-friction generator; the nano-generator 110 can generate electricity through the fluctuating pressure formed when drilling fluid flows through a pipe column or the mechanical vibration generated when a drill string drills, and the generated electric energy is generally alternating current;
the power supply unit 19 includes a sorting circuit and a power supply management module, the sorting circuit can rectify the alternating current generated by the nano-generator 110 into usable direct current, and the power supply management module can transmit the rectified direct current to the main control unit 18 and the sensor unit 111 for utilization;
while the power management module may also provide power to the master control unit 18 and the sensor unit 111,
or; the power supply unit 19 may further include a rechargeable battery, the direct current rectified and converted by the nano-generator 110 may charge the rechargeable battery, and when there is no drilling fluid circulation and drilling in the downhole, and the nano-generator 110 cannot work at this time, the rechargeable battery in the power supply unit 19 may supply power to the main control unit 18 and the sensor unit 111;
second wire passing holes 13 are uniformly formed in the drill string pipe body 15, the upper drill string joint 11 and the lower drill string joint 16, the second wire passing holes 13 are arranged along the length direction of the drill string body 1, an upper antenna mounting ring groove 116 is formed in the upper drill string joint 11, a lower antenna mounting ring groove 115 is formed in the lower drill string joint 16, the upper antenna mounting ring groove 116 is communicated with one corresponding mounting unit hole 117 through the second wire passing hole 13, and the lower antenna mounting ring groove 115 is communicated with one corresponding mounting unit hole 117 through the second wire passing hole 13;
a second cable 14 is arranged in the second wire passing hole 13, an upper coil 12 is arranged in the upper antenna mounting ring groove 116, a lower coil 17 is arranged in the lower antenna mounting ring groove 115, the upper coil 12 is electrically connected with the main control unit 18 through the second cable 14, and the lower coil 17 is electrically connected with the main control unit 18 through the second cable 14;
sealing components 112 are arranged between the nano-generator 110, the sensor unit 111, the power supply unit 19 and the main control unit 18 and the hole wall of the corresponding mounting unit hole 117 respectively; specifically, the sealing components 112 are respectively disposed at two ends of the nano-generator 110, the sensor unit 111, the power supply unit 19 and the main control unit 18, and the first wire passing hole 113 is disposed between adjacent sealing components 112;
the inner drillstring tubular body surface 120 of the drillstring tubular body 15 is impregnated with a protective layer 119 of a compound, specifically, a compound comprising epoxy, rubber, or polyurethane;
in this embodiment, isolation is provided by means of a protective layer 119 of potting compound, since the inner surface 120 of the drill string body is too thin for drilling;
when implementing compound protective layer 119, earlier place second cable 14 in the bottom of drilling string body 15 depending on gravity, compound protective layer 119 possesses the mobility when the construction, pours into inside back of drilling string body 15, along gravity tiling flow, has the abundant back, just can cover second cable 14 to possess certain protection thickness, have sufficient contact surface simultaneously with drilling string body internal surface 120.
The embodiment also provides a downhole data transmission system, which comprises a surface system, a downhole system and at least two intelligent drill strings 2;
adjacent intelligent drill strings 2 are connected together through an upper drill string connector 11 or a lower drill string connector 16, and a ground system and a downhole system are in bidirectional communication connection through the intelligent drill strings 2;
the intelligent drill string 2 acquires underground data through the sensor unit 111 and transmits the acquired underground data to a ground system, and the ground system can transmit corresponding control instructions to the underground system through the intelligent drill string 2;
the main control unit 18 is a small-sized single chip microcomputer system, and has functions of data storage, transmission, reading and writing and the like, the sensor unit 111 can measure physical quantities of the current drill string or the environment in real time, such as fluid pressure, temperature, vibration and the like, and the main control unit 18 can read the physical quantities measured by the sensor unit 111, store data, communicate with the main control unit 18 on the ground system or the rest of the intelligent drill strings 2, and transmit the data; the main control unit 18 communicates with the adjacent intelligent drill string 2 through a wireless communication mode by using the upper coil 12 and the lower coil 17, wherein the wireless communication mode comprises Wi-Fi, Wi-Fi Direct, Bluetooth, low-power Bluetooth, ZigBee and the like;
after at least two intelligent drill strings 2 are connected together, the sensor unit 111 on each intelligent drill string 2 can measure different physical quantities and can also measure the same physical quantity;
in two adjacent intelligent drill strings 2, an upper antenna mounting ring groove 116 on one intelligent drill string 2 is butted with a lower antenna mounting ring groove 115 on the other intelligent drill string 2;
in two adjacent intelligent drill strings 2, an upper coil 12 on one intelligent drill string 2 is in communication connection with a lower coil 17 on the other intelligent drill string 2;
as shown in fig. 6, when three intelligent drill strings 2 are connected together, the sensor unit 111 of the intelligent drill string 2 in the middle position can be eliminated, and the storage unit 118 is used to replace the sensor unit 111 to store more data, so that the intelligent drill string 2 in the middle position forms a relay storage point, the surface system can only communicate with the relay storage point, the relay storage point can communicate with the adjacent intelligent drill string 2, and the actual combination structure can be determined according to the field requirements.
The intelligent drill string 2 and the underground data transmission system provided by the embodiment have the beneficial effects that:
the installation unit hole 117 can provide an installation position for installation of the nano-generator 110, the power supply unit 19, the main control unit 18 and the sensor unit 111, and because the first cable 114 is located in the cavity of the drill string body 1, the first cable 114 needs to be installed from outside to inside when being connected with the nano-generator 110, the power supply unit 19, the main control unit 18 and the sensor unit 111, and the installation unit hole 117 can facilitate installation of the nano-generator 110, the power supply unit 19, the main control unit 18 and the sensor unit 111;
when adjacent intelligent drill strings 2 are connected together, the upper antenna mounting ring groove 116 and the lower antenna mounting ring groove 115 can enable the adjacent intelligent drill strings 2 to be quickly butted together, and the installation is more convenient;
the power management module may rectify the ac power generated by the nanogenerator 110 into usable dc power;
the sealing assembly 112 can prevent the invasion of drilling fluid into the first wire passing hole 113;
the compound protection layer 119 can be insulated, has good heat resistance and washing resistance, can be well bonded with metal and insulating materials on the surface of the second cable 14, and then has self-fluidity under the action of gravity;
the intelligent drill string 2 is provided with a nano generator 110, the nano generator 110 can generate electricity through fluctuating pressure formed when drilling fluid flows through a pipe column or mechanical vibration generated when the drill string drills, the nano generator 110, a sensor unit 111, a power supply unit 19 and a main control unit 18 are electrically connected together through a first cable 114, electricity generated by the nano generator 110 is transmitted to the power supply unit 19 through the first cable 114, the power supply unit 19 rectifies the electricity and transmits the rectified electricity to the main control unit 18 and the sensor unit 111 for utilization, the sensor unit 111 measures physical quantities of the current drill string or environment in real time, and the main control unit 18 can read and store the physical quantities measured by the sensor unit 111 and then realizes data transmission;
the upper coil 12 in the upper antenna mounting ring groove 116 and the lower coil 17 in the lower antenna mounting ring groove 115 are electrically connected with the main control unit 18 through the second cable 14, so that data transmission can be realized;
the intelligent drill string 2 is provided with a nano generator 110, a power supply unit 19, a main control unit 18 and a sensor unit 111, can realize the functions of data measurement and data transmission during exploration, and can improve the condition of severe technical requirements on drilling and production and the like during exploration of oil and gas fields facing deep land or areas with complex structures, deep sea or beach areas;
the ground system and the underground system can form a signal channel capable of transmitting information in a bidirectional and high speed mode through the intelligent drill string 2 to transmit data, can transmit ground instructions to the underground system through the intelligent drill string 2, and can transmit the state of the underground system, the acquired information and the physical quantity acquired by the intelligent drill string 2 through the sensor unit to the ground system through the intelligent drill string 2.
Example 2
As shown in fig. 1-8, the present embodiment provides a downhole data transmission system, which includes a surface system, a downhole system, and at least two of the above-mentioned smart drill strings 2;
adjacent intelligent drill strings 2 are connected together through an upper drill string connector 11 or a lower drill string connector 16, and a ground system and a downhole system are in bidirectional communication connection through the intelligent drill strings 2;
the intelligent drill string 2 acquires underground data through the sensor unit 111 and transmits the acquired underground data to a ground system, and the ground system can transmit corresponding control instructions to the underground system through the intelligent drill string 2;
the main control unit 18 is a small-sized single chip microcomputer system, and has functions of data storage, transmission, reading and writing and the like, the sensor unit 111 can measure physical quantities of a current drill string or environment in real time, such as fluid pressure, temperature, vibration and the like, the main control unit 18 can read the physical quantities measured by the sensor unit 111, store data, communicate with the main control unit 18 on a ground system or other intelligent drill strings 2, and transmit the data; the main control unit 18 communicates with the adjacent intelligent drill string 2 through a wireless communication mode by using the upper coil 12 and the lower coil 17, wherein the wireless communication mode comprises Wi-Fi, Wi-Fi Direct, Bluetooth, low-power Bluetooth, ZigBee and the like;
after at least two intelligent drill strings 2 are connected together, the sensor unit 111 on each intelligent drill string 2 can measure different physical quantities and can also measure the same physical quantity;
second wire through holes 13 are uniformly formed in the drill string pipe body 15, the upper drill string joint 11 and the lower drill string joint 16, the second wire through holes 13 are formed in the length direction of the drill string body 1, an upper antenna mounting ring groove 116 is formed in the upper drill string joint 11, a lower antenna mounting ring groove 115 is formed in the lower drill string joint 16, the upper antenna mounting ring groove 116 is communicated with one corresponding mounting unit hole 117 through the second wire through hole 13, and the lower antenna mounting ring groove 115 is communicated with one corresponding mounting unit hole 117 through the second wire through hole 13;
in two adjacent intelligent drill strings 2, an upper antenna mounting ring groove 116 on one intelligent drill string 2 is butted with a lower antenna mounting ring groove 115 on the other intelligent drill string 2;
a second cable 14 is arranged in the second wire passing hole 13, an upper coil 12 is arranged in the upper antenna mounting ring groove 116, a lower coil 17 is arranged in the lower antenna mounting ring groove 115, the upper coil 12 is electrically connected with the main control unit 18 through the second cable 14, and the lower coil 17 is electrically connected with the main control unit 18 through the second cable 14;
in two adjacent intelligent drill strings 2, an upper coil 12 on one intelligent drill string 2 is in communication connection with a lower coil 17 on the other intelligent drill string 2;
as shown in fig. 6, when three intelligent drill strings 2 are connected together, the sensor unit 111 of the intelligent drill string 2 in the middle position can be eliminated, and the storage unit 118 can be used to store more data instead of the sensor unit 111, so that the intelligent drill string 2 in the middle position forms a relay storage point, the surface system can only communicate with the relay storage point, the relay storage point can communicate with the adjacent intelligent drill strings 2, and the actual combined structure can be determined according to the requirements in the field.
The underground data transmission system provided by the embodiment has the beneficial effects that:
the upper coil 12 in the upper antenna mounting ring groove 116 and the lower coil 17 in the lower antenna mounting ring groove 115 are electrically connected with the main control unit 18 through the second cable 14, so that data transmission can be realized;
the ground system and the underground system can form a signal channel capable of transmitting information in a bidirectional and high speed mode through the intelligent drill string 2 to transmit data, can transmit ground instructions to the underground system through the intelligent drill string 2, and can transmit the state of the underground system, the acquired information and the physical quantity acquired by the intelligent drill string 2 through the sensor unit to the ground system through the intelligent drill string 2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (12)
1. An intelligent drill string, comprising a drill string body (1), a nano-generator (110), a sensor unit (111), a power supply unit (19) and a main control unit (18);
the drill string body (1) comprises a drill string pipe body (15), an upper drill string joint (11) and a lower drill string joint (16), the upper drill string joint (11) is arranged at one end of the drill string pipe body (15), the lower drill string joint (16) is arranged at the other end of the drill string pipe body (15), a plurality of mounting unit holes (117) are formed in the lower drill string joint (16) and/or the upper drill string joint (11), and the nano generator (110), the sensor unit (111), the power supply unit (19) and the main control unit (18) are respectively and independently located in the corresponding mounting unit holes (117);
an upper antenna mounting ring groove (116) is formed in the drill string upper joint (11), a lower antenna mounting ring groove (115) is formed in the drill string lower joint (16), an upper coil (12) is arranged in the upper antenna mounting ring groove (116), and a lower coil (17) is arranged in the lower antenna mounting ring groove (115);
the upper coil (12) and the lower coil (17) are both electrically connected with the main control unit (18) through a second cable (14);
the nanogenerator (110), the sensor unit (111), the power supply unit (19), and the main control unit (18) are electrically connected by a first cable (114).
2. The smart drill string as recited in claim 1, wherein a first wire passing hole (113) is disposed between adjacent ones of the mounting unit holes (117), the first cable (114) being disposed within the first wire passing hole (113).
3. An intelligent drill string according to claim 2, wherein a second line passing hole (13) is provided in each of the upper drill string joint (11), the lower drill string joint (16) and/or the drill string pipe body (15), the second line passing hole (13) is provided along the length direction of the drill string body, and the second cable (14) is provided in the second line passing hole (13).
4. An intelligent drill string according to claim 3, wherein the inner drill string tubular body surface (120) is impregnated with a protective compound layer (119) when only the upper drill string joint (11) and the lower drill string joint (16) are provided with the second wire passage hole (13).
5. An intelligent drill string according to claim 3, wherein the upper antenna mounting ring groove (116) communicates with a corresponding one of the mounting unit holes (117) through the second wire passing hole (13), and the lower antenna mounting ring groove (115) communicates with a corresponding one of the mounting unit holes (117) through the second wire passing hole (13).
6. An intelligent drill string according to claim 4 or 5, characterized in that the power supply unit (19) comprises a power supply management module for transmitting electricity to the main control unit (18).
7. An intelligent drill string according to claim 6, characterized in that the power supply unit (19) further comprises a rectifying circuit for rectifying alternating current generated by the nanogenerator (110) into direct current.
8. An intelligent drill string according to claim 7, characterized in that sealing assemblies (112) are provided between the nano-generator (110), the sensor unit (111), the power supply unit (19) and the main control unit (18) and the corresponding wall of the installation unit hole (117), respectively.
9. An intelligent drill string according to claim 8, wherein the sealing assemblies (112) are arranged at two ends of the nano-generator (110), the sensor unit (111), the power supply unit (19) and the main control unit (18), respectively, and the first wire passing hole (113) is arranged between adjacent sealing assemblies (112).
10. A downhole data transmission system comprising a surface system and a downhole system, further comprising at least two intelligent drill strings (2) according to any of the preceding claims 1-9;
the adjacent intelligent drill strings (2) are connected through an upper drill string connector (11) or a lower drill string connector (16), and the surface system and the downhole system are in bidirectional communication connection through the intelligent drill strings (2);
the intelligent drill string (2) collects downhole data through the sensor unit (111) and transmits the collected downhole data to the surface system, and the surface system can transmit corresponding control instructions to the downhole system through the intelligent drill string (2).
11. A downhole data transmission system according to claim 10, wherein the upper antenna mounting ring groove (116) on one of the smart drill strings (2) abuts the lower antenna mounting ring groove (115) on the other smart drill string (2) in two adjacent smart drill strings (2).
12. A downhole data transmission system according to claim 11, wherein the upper coil (12) on one of the smart drill strings (2) is communicatively connected to the lower coil (17) on the other smart drill string (2) in two adjacent smart drill strings (2).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011372783.8A CN114575757B (en) | 2020-11-30 | 2020-11-30 | Intelligent drill column and underground data transmission system |
| PCT/CN2021/133629 WO2022111641A1 (en) | 2020-11-30 | 2021-11-26 | Smart drill stem and downhole data transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011372783.8A CN114575757B (en) | 2020-11-30 | 2020-11-30 | Intelligent drill column and underground data transmission system |
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| CN114575757B CN114575757B (en) | 2023-02-03 |
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| CN202011372783.8A Active CN114575757B (en) | 2020-11-30 | 2020-11-30 | Intelligent drill column and underground data transmission system |
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| CN (1) | CN114575757B (en) |
| WO (1) | WO2022111641A1 (en) |
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| FR3076850B1 (en) * | 2017-12-18 | 2022-04-01 | Quartzdyne Inc | NETWORKS OF DISTRIBUTED SENSORS FOR MEASURING ONE OR MORE PRESSURES AND TEMPERATURES AND ASSOCIATED METHODS AND ASSEMBLIES |
| US10822942B2 (en) * | 2018-02-13 | 2020-11-03 | Baker Hughes, A Ge Company, Llc | Telemetry system including a super conductor for a resource exploration and recovery system |
| CN208966331U (en) * | 2018-08-27 | 2019-06-11 | 慧疆科技（天津）有限公司 | Down-hole data communication system |
| CN109488289A (en) * | 2018-12-05 | 2019-03-19 | 贝兹维仪器(苏州)有限公司 | A kind of multi-parameter drilling measuring equipment |
| CN110284877B (en) * | 2019-05-25 | 2022-12-30 | 中国海洋石油集团有限公司 | Underground permanent dynamic monitoring device and monitoring method |
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| CN101864905A (en) * | 2009-04-14 | 2010-10-20 | 中国石化集团胜利石油管理局钻井工艺研究院 | Magnetic induction type signal transmission drill pipe joint |
| US20130027216A1 (en) * | 2010-04-12 | 2013-01-31 | Universitaet Siegen | Communication system for transmitting information via drilling rods |
| CN110299778A (en) * | 2013-05-08 | 2019-10-01 | 哈里伯顿能源服务公司 | Downhole drill motor and in drill-well operation conduct power method |
| CN110581669A (en) * | 2019-08-08 | 2019-12-17 | 中国地质大学（武汉） | Drilling rod centrifugal vibration electricity generation nipple joint based on nano-material |
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| CN114575757B (en) | 2023-02-03 |
| WO2022111641A1 (en) | 2022-06-02 |
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