CN106685630B - Underground two-way communication device - Google Patents
Underground two-way communication device Download PDFInfo
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- CN106685630B CN106685630B CN201611129970.7A CN201611129970A CN106685630B CN 106685630 B CN106685630 B CN 106685630B CN 201611129970 A CN201611129970 A CN 201611129970A CN 106685630 B CN106685630 B CN 106685630B
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- 230000006854 communication Effects 0.000 title claims abstract description 21
- 238000004891 communication Methods 0.000 title claims abstract description 21
- 210000002445 nipple Anatomy 0.000 claims abstract description 117
- 230000007175 bidirectional communication Effects 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 30
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000008054 signal transmission Effects 0.000 abstract description 5
- 239000003208 petroleum Substances 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 description 5
- 230000005389 magnetism Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Mining & Mineral Resources (AREA)
- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention relates to the technical field of underground communication devices, in particular to an underground two-way communication device which comprises a non-magnetic nipple, an electronic nipple, a pulse generator, a mud turbine generator and a contact pin connecting sleeve. The invention has reasonable and compact structure and convenient use, and can complete the uploading of underground signals to the well and the downloading of the underground signals to the well under the premise of not changing the traditional flow channel mode in the use process, realize the bidirectional communication of signal transmission, prevent the arrangement of the broken wire assembly, prevent the phenomenon of cable fracture between the second line passing channel and the third line passing channel when the nonmagnetic short section is connected with the electronic short section, and maintain the bidirectional communication of the invention, thereby being widely applied to the bidirectional communication of the petroleum underground electromechanical equipment.
Description
Technical Field
The invention relates to the technical field of underground communication devices, in particular to an underground two-way communication device.
Background
In the development process of oil and gas wells, various electromechanical devices are needed to complete related communication tasks at the bottom of the well in many times, such as directional measurement, data storage and local control, for such electromechanical products, circuit modules (such as a voltage stabilizing circuit, a rectifying circuit, a pulse driving circuit, a downlink signal receiving and transmitting circuit and the like) are often needed to be fixed inside a structure, the structure itself needs to be used for transmitting power, and the circuit parts need to be well sealed, connected and assembled, so that data transmission is finally realized. In the process of assembling the tool, the cable at the connecting end of the tool is easy to be damaged or even broken, especially when the tool is connected by screw threads, the cable at the connecting end of the tool can be easily twisted off along with the rotation of the tool when the tool is connected by rotation, and the damage and the breakage of the cable can have adverse effects on the transmission of signals or electric energy; in addition, for traditional cable connection mode, the instrument drill collar lateral wall is opened the slot hole and is carried out the lead wire, adopts the butt joint of signal or electric energy of plug, socket's mode to need leave sufficient passageway that overflows, when adopting plug and socket mode, the butt joint is more difficult when the assembly.
Disclosure of Invention
The invention provides an underground two-way communication device, which overcomes the defects of the prior art and can effectively solve the problem that cables at the connecting end of a tool are easy to damage or even break when the conventional underground communication device is assembled.
The technical scheme of the invention is realized by the following measures: the utility model provides a two-way communication device in pit, including no magnetism nipple joint, the electronic nipple joint, pulse generator, mud turbine generator and contact pin adapter sleeve, the lower part inboard of no magnetism nipple joint is in the same place with the sealed fixed mounting in upper portion outside of electronic nipple joint, install the overcoat in the upper portion outside of electronic nipple joint is sealed, fixedly mounted has power supply circuit board and pulse generation drive circuit board between overcoat and electronic nipple joint, pulse generator, mud turbine generator and contact pin adapter sleeve top-down are fixed in no magnetism nipple joint, the lower extreme of contact pin adapter sleeve is in the same place with the upper end seal fixed mounting of electronic nipple joint, be provided with first wire through channel on the contact pin adapter sleeve, be provided with the second wire through channel that communicates with each other with first wire through channel on the electronic nipple joint of power supply circuit board top, the axial is provided with the third wire through channel that communicates with second wire through channel on no magnetism nipple joint, install the wire through bus board that can connect between second wire through channel and the upper portion inboard and the electronic nipple joint outside, the pulse generator's of cable prevent wire through between second wire through channel and the third wire through the top-down is connected into the pulse generator circuit board, the pulse generator input signal output of pulse generator, the axial signal input/output circuit board is connected to the power supply circuit board.
The following are further optimizations and/or improvements to the above-described inventive solution:
the anti-breakage assembly comprises a fixed wiring conductor and a rotary wiring conductor which can rotate relatively and realize electric connection; an outer slip ring limit groove communicated with a third wire passing channel is formed in the inner side of the lower end of the nonmagnetic nipple, a radial channel is communicated with the electronic nipple between the outer slip ring limit groove and the second wire passing channel, and a fixed wiring conductor is fixedly arranged outside the electronic nipple at the radial channel in an insulating manner through an inner insulating sleeve; an outer insulating sleeve which is arranged in the outer slip ring limit groove in an insulating way is wrapped outside the rotary wiring conductor; the fixed wiring conductor and the rotary wiring conductor are respectively provided with a wiring terminal, and the inner insulating sleeve is provided with an inner wire passing channel which can electrically connect the cable in the radial channel with the wiring terminal of the fixed wiring conductor; an outer wire passing channel which can electrically connect the cable in the third wire passing channel with the wiring terminal of the rotary wiring conductor is arranged on the outer insulating sleeve; the inner side of the lower end of the nonmagnetic nipple is fixedly arranged with the outer side of the upper end of the electronic nipple through threads.
The pulse driving circuit board is provided with a pulse driving circuit module and a signal receiving and transmitting module, the power output end of the power circuit board is connected with the pulse driving circuit module and the power input end of the signal receiving and transmitting module, the signal output end of the pulse driving circuit module is electrically connected with the signal input end of the pulse generator, and the signal output end of the mud turbine generator is electrically connected with the signal input end of the signal receiving and transmitting module; or/and, an upper wiring port is arranged at the upper end of the third wiring channel, a lower wiring port is arranged at the bottom end of the fourth wiring channel, an upper sealing groove is arranged on the nonmagnetic nipple above the upper wiring port, and a lower sealing groove is arranged on the outer side of the electronic nipple below the lower wiring port.
The inner side of the upper part of the contact pin connecting sleeve is provided with a step annular groove with the cross section width gradually decreasing from top to bottom, the outer side of the lower end of the mud turbine generator and the inner side of the upper end of the contact pin connecting sleeve are fixedly arranged together at the step annular groove, a multi-core contact pin is fixedly arranged in the step annular groove, and a first wire passing channel communicated with the step annular groove is arranged on the contact pin connecting sleeve below the step annular groove; or/and, an upper check ring is arranged at the outer side of the electronic nipple between the nonmagnetic nipple and the outer sleeve in a sealing manner, an outer limit groove is formed at the inner side of the lower part of the upper check ring, an inner limit groove corresponding to the outer limit groove is formed at the outer side of the electronic nipple corresponding to the outer limit groove, and positioning rings for axially limiting the upper check ring are fixedly arranged in the outer limit groove and the inner limit groove; or/and, an outer ring table is arranged on the outer side of the lower part of the electronic short section, the outer sleeve seat is arranged on the outer ring table, and a lower check ring is sealed and sleeved between the outer sleeve and the outer ring table; or/and, a limit ring groove is arranged on the inner side of the nonmagnetic short section corresponding to the pulse generator, and a fixed sleeve for supporting the pulse generator is arranged in the limit ring groove in a sealing way.
A wiring channel is formed between the outer side of the electronic nipple between the second wiring channel and the fourth wiring channel and the inner side of the outer sleeve, at least one upper fixing groove is formed on the outer side of the electronic nipple corresponding to the inner side and the outer side of the outer sleeve along the circumference, a power circuit board is fixed in the upper fixing groove, at least one lower fixing groove is formed on the outer side of the electronic nipple below the upper fixing groove along the circumference, and a pulse driving circuit board is fixed in the lower fixing groove; the outer side of the electronic short section between the second wire passing channel and the upper fixing groove is provided with a first bypass annular groove, the outer side of the electronic short section between the upper fixing groove and the lower fixing groove is provided with a second bypass annular groove, and the outer side of the electronic short section between the lower fixing groove and the fourth wire passing channel is provided with a third bypass annular groove.
A front-back through mounting window is arranged on one side of the contact pin connecting sleeve close to the upper end of the electronic nipple, a connecting through hole penetrating to the bottom of the contact pin connecting sleeve is arranged at the bottom of the mounting window, a threaded hole is arranged on the electronic nipple corresponding to the connecting through hole, and an anti-rotation fixing bolt capable of fixedly connecting the contact pin connecting sleeve and the electronic nipple is fixedly arranged in the connecting through hole and the threaded hole which correspond to each other through threads; or/and, an internal thread or an external thread is arranged on the upper side of the nonmagnetic nipple, and an internal thread or an external thread is arranged on the lower side of the electronic nipple; or/and at least one sealing ring is fixedly arranged between the outer side of the lower end of the contact pin connecting sleeve and the inner side of the upper end of the electronic short section.
The invention has reasonable and compact structure and convenient use, and can complete the uploading of underground signals to the well and the downloading of the underground signals to the well under the premise of not changing the traditional flow channel mode in the use process, realize the bidirectional communication of signal transmission, prevent the arrangement of the broken wire assembly, prevent the phenomenon of cable fracture between the second line passing channel and the third line passing channel when the nonmagnetic short section is connected with the electronic short section, and maintain the bidirectional communication of the invention, thereby being widely applied to the bidirectional communication of the petroleum underground electromechanical equipment.
Drawings
FIG. 1 is a schematic cross-sectional front view of the top half of the preferred embodiment of the present invention.
Fig. 2 is a schematic cross-sectional front view of the lower half of the preferred embodiment of the present invention.
Fig. 3 is a circuit block diagram of a preferred embodiment of the present invention.
Fig. 4 is an enlarged schematic view of the structure at a in fig. 2.
The codes in the drawings are respectively: 1 is a nonmagnetic short section, 2 is an electronic short section, 3 is a pulse generator, 4 is a mud turbine generator, 5 is a contact pin connecting sleeve, 6 is an outer sleeve, 7 is a first wire passing channel, 8 is a second wire passing channel, 9 is a third wire passing channel, 10 is a fourth wire passing channel, 11 is a step ring groove, 12 is a multi-core contact pin, 13 is a radial channel, 14 is an outer insulating sleeve, 15 is an inner insulating sleeve, 16 is a rotary connection conductor, 17 is an upper check ring, 18 is a lower seal groove, 19 is an outer ring table, 20 is a lower retainer ring, 21 is a fixed sleeve, 22 is an upper fixed groove, 23 is a lower fixed groove, 24 is a first bypass annular groove, 25 is a second bypass annular groove, 26 is a third bypass annular groove, 27 is a mounting window, 28 is an anti-rotation fixed bolt, 29 is an upper wiring port, 30 is a lower wiring port, 31 is a sealing ring, 32 is an upper sealing groove, 33 is a cable of a second wiring channel, 34 is a cable of a third wiring channel, and 35 is a fixed wiring conductor.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described below with reference to examples and figures:
as shown in fig. 1 to 4, the underground two-way communication device comprises a non-magnetic nipple 1, an electronic nipple 2, a pulse generator 3, a mud turbine generator 4 and a contact pin connecting sleeve 5, wherein the inner side of the lower part of the non-magnetic nipple 1 is fixedly and hermetically installed with the outer side of the upper part of the electronic nipple 2, an outer sleeve 6 is hermetically installed on the outer side of the upper part of the electronic nipple 2, a power circuit board and a pulse driving circuit board are fixedly installed between the outer sleeve 6 and the electronic nipple 2, the pulse generator 3, the mud turbine generator 4 and the contact pin connecting sleeve 5 are fixedly arranged in the non-magnetic nipple 1 from top to bottom, the lower end of the contact pin connecting sleeve 5 is fixedly and hermetically installed with the upper end of the electronic nipple 2, a first wire passing channel 7 is arranged on the contact pin connecting sleeve 5, a second wire passing channel 8 communicated with the first wire passing channel 7 is arranged on the electronic nipple 2 above the power circuit board, a third wire passing channel 9 communicated with the second wire passing channel 8 is axially arranged on the nonmagnetic nipple 1, a wire breakage preventing assembly capable of connecting a cable between the second wire passing channel 8 and the third wire passing channel 9 is arranged between the inner side of the lower part of the nonmagnetic nipple 1 and the outer side of the upper part of the electronic nipple 2 in a sealing manner, a fourth wire passing channel 10 is axially arranged on the electronic nipple 2 below a pulse driving circuit board, the power output end of the mud turbine generator 4 is connected with the power input end of the power circuit board, the power output end of the power circuit board is respectively connected with the power input end of the pulse driving circuit board and the power input end of the pulse generator 3, the signal output end of the pulse driving circuit board is electrically connected with the signal input end of the pulse generator 3, and the signal output end of the mud turbine generator 4 is electrically connected with the signal input end of the pulse driving circuit board.
The pulse generator 3 is a downhole device of the prior art that generates a pulse signal. The mud turbine generator 4 is a mud turbine generator having both power generation and signal transmission in the prior art. The power circuit board and the pulse driving circuit board are both in the prior art. The cartridge 2 can be used to transmit torque and bear weight on bit.
In the use process of the underground bidirectional communication device, on the premise of not changing the traditional flow channel mode, the underground signal uploading to the well and the underground signal downloading to the well can be completed, and the bidirectional communication of signal transmission is realized. The arrangement of the disconnection preventing assembly can prevent the cable between the second wire passing channel 8 and the third wire passing channel 9 from being broken when the nonmagnetic short section 1 and the electronic short section 2 are connected, and can maintain the bidirectional communication of the invention, so that the invention can be widely applied to the bidirectional communication of the petroleum underground electromechanical equipment.
The underground two-way communication device can be further optimized or/and improved according to actual needs:
as shown in fig. 2 and 4, the disconnection preventing assembly includes a fixed connection conductor 35 and a rotary connection conductor 16 which can be rotated relatively and electrically connected; an outer slip ring limit groove communicated with a third wire passing channel 9 is formed in the inner side of the lower end of the nonmagnetic nipple 1, a radial channel 13 is communicated with the electronic nipple 2 between the outer slip ring limit groove and the second wire passing channel 8, and a fixed wiring conductor 35 is fixedly arranged outside the electronic nipple 2 at the radial channel 13 in an insulating manner through an inner insulating sleeve 15; an outer insulating sleeve 14 which is arranged in the outer slip ring limit groove in an insulating way is wrapped outside the rotary wiring conductor 16; the fixed wiring conductor 35 and the rotary wiring conductor 16 are respectively provided with wiring terminals, and the inner insulating sleeve 15 is provided with an inner wire passing channel which can electrically connect the cable in the radial channel 13 with the wiring terminals of the fixed wiring conductor 35; an outer wire passage which can electrically connect the cable in the third wire passage 9 with the connection terminal of the rotary connection conductor 16 is arranged on the outer insulating sleeve 14; the inner side of the lower end of the nonmagnetic nipple 1 is fixedly arranged with the outer side of the upper end of the electronic nipple 2 through threads.
When the nonmagnetic nipple 1 and the electronic nipple 2 are connected, the electronic nipple 2 is fixed, the nonmagnetic nipple 1 is rotated to enable the electronic nipple 2 to be buckled with the nonmagnetic nipple 1, after the nonmagnetic nipple 1 is rotated for a certain angle, a cable in the third wire passing channel 9 can drag the rotary wiring conductor 16 and the outer insulating sleeve 14 to rotate, and the rotary wiring conductor 16 and the outer insulating sleeve 14 can rotate along with the nonmagnetic nipple 1 due to the relative rotation between the rotary wiring conductor 16 and the fixed wiring conductor 35, so that the cable in the third wire passing channel 9 can not be twisted off at the same time, namely, the cable breakage phenomenon between the second wire passing channel 8 and the third wire passing channel 9 can be prevented, the cable can be protected, and the ordered communication is ensured.
As shown in fig. 3, a pulse driving circuit module and a signal transceiver module are arranged on the pulse driving circuit board, the power output end of the power circuit board is connected with the pulse driving circuit module and the power input end of the signal transceiver module, the signal output end of the pulse driving circuit module is electrically connected with the signal input end of the pulse generator 3, and the signal output end of the mud turbine generator 4 is electrically connected with the signal input end of the signal transceiver module; or/and, an upper wiring port 29 is arranged at the upper end of the third wiring channel 9, a lower wiring port 30 is arranged at the bottom end of the fourth wiring channel 10, an upper sealing groove 32 is arranged on the nonmagnetic nipple 1 above the upper wiring port 29, and a lower sealing groove 18 is arranged outside the electronic nipple 2 below the lower wiring port 30.
The pulse driving circuit module and the signal receiving and transmitting module are known in the prior art. The arrangement of the upper wiring port 29 and the lower wiring port 30 facilitates the butt joint of the cable of the invention and an external cable during assembly; in order to improve the sealing property between the present invention and the connection tool, sealing rings 31 may be installed in the upper sealing groove 32 and the lower sealing groove 18, thereby further protecting the circuit module (pulse driving circuit board, etc.) in the present invention.
As shown in fig. 1 and 2, a step ring groove 11 with the cross section width gradually decreasing from top to bottom is arranged on the inner side of the upper part of the contact pin connecting sleeve 5, the outer side of the lower end of the mud turbine generator 4 and the inner side of the upper end of the contact pin connecting sleeve 5 are fixedly arranged together at the step ring groove 11, a multi-core contact pin 12 is fixedly arranged in the step ring groove 11, and a first wire passing channel 7 communicated with the step ring groove 11 is arranged on the contact pin connecting sleeve 5 below the step ring groove 11; or/and, an upper check ring 17 is arranged at the outer side of the electronic nipple 2 between the nonmagnetic nipple 1 and the outer sleeve 6 in a sealing manner, an outer limit groove is arranged at the inner side of the lower part of the upper check ring 17, an inner limit groove corresponding to the outer limit groove is arranged at the outer side of the electronic nipple 2 corresponding to the outer limit groove, and a positioning ring for axially limiting the upper check ring 17 is fixedly arranged in the outer limit groove and the inner limit groove; or/and, an outer ring platform 19 is arranged on the outer side of the lower part of the electronic short section 2, the outer sleeve 6 is arranged on the outer ring platform 19, and a lower check ring 20 is sealed and sleeved between the outer sleeve 6 and the outer ring platform 19; or/and, a limit ring groove is arranged on the inner side of the nonmagnetic nipple 1 corresponding to the pulse generator 3, and a fixed sleeve 21 for supporting the pulse generator 3 is arranged in the limit ring groove in a sealing way.
The multi-core pin 12 can meet the butt joint of a plurality of signal wires. The multi-core pin 12 is a seven-core pin, as required.
As shown in fig. 1 to 4, a wiring channel is formed between the outer side of the electronic nipple 2 between the second wiring channel 8 and the fourth wiring channel 10 and the inner side of the outer sleeve 6, at least one upper fixing groove 22 is circumferentially arranged on the outer side of the electronic nipple 2 corresponding to the inner side and the outer side of the outer sleeve 6, a power circuit board is fixed in the upper fixing groove 22, at least one lower fixing groove 23 is circumferentially arranged on the outer side of the electronic nipple 2 below the upper fixing groove 22, and a pulse driving circuit board is fixed in the lower fixing groove 23; a first bypass ring groove 24 is arranged outside the electronic short section 2 between the second wire passing channel 8 and the upper fixing groove 22, a second bypass ring groove 25 is arranged outside the electronic short section 2 between the upper fixing groove 22 and the lower fixing groove 23, and a third bypass ring groove 26 is arranged outside the electronic short section 2 between the lower fixing groove 23 and the fourth wire passing channel 10.
As shown in fig. 1 to 4, a front-back through mounting window 27 is arranged on one side of the pin connecting sleeve 5 near the upper end of the electronic nipple 2, a connecting through hole penetrating to the bottom of the pin connecting sleeve 5 is arranged at the bottom of the mounting window 27, a threaded hole is arranged on the electronic nipple 2 corresponding to the connecting through hole, and an anti-rotation fixing bolt 28 capable of fixedly connecting the pin connecting sleeve 5 and the electronic nipple 2 is fixedly arranged in the connecting through hole and the threaded hole which are mutually corresponding through threads; or/and, an internal thread or an external thread is arranged on the upper side of the nonmagnetic nipple 1, and an internal thread or an external thread is arranged on the lower side of the electronic nipple 2; or/and at least one sealing ring 31 is fixedly arranged between the outer side of the lower end of the contact pin connecting sleeve 5 and the inner side of the upper end of the electronic short section 2.
The sealing ring 31 can improve the tightness between the contact pin connecting sleeve 5 and the electronic short section 2, namely, prevent liquid from entering the first wire passing channel 7, the second wire passing channel 8 and the like through the gap between the contact pin connecting sleeve 5 and the electronic short section 2, so that the electronic accessory is in fault. The anti-rotation fixing bolt 28 not only plays a role in connecting the contact pin connecting sleeve 5 with the electronic short section 2, but also can further facilitate the butt joint of the first wire passing channel 7 and the second wire passing channel 8, and is convenient for assembly.
In the present invention, the seals may be provided by mounting a seal ring 31 or other means of sealing known in the art, such as a seal in a seal-retaining mount or a seal in a seal-pack.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
The use process of the best embodiment of the invention comprises the following steps: connecting the underground bidirectional communication device into an underground tool (vertical pipe), connecting the lower end of the electronic nipple 2 with a measurement while drilling nipple (MWD nipple) provided with a measuring well deviation, azimuth and other well bottom data instrument, connecting a data cable between the pulse driving circuit module and the MWD nipple through a lower wiring port 30, and electrically connecting a signal receiving and transmitting module with an underground central controller (underground CPU); the mud turbine generator 4 generates electricity and transmits the electricity to the power circuit board, and the power circuit board supplies power to the pulse generator 3 and the pulse driving circuit board respectively; the MWD nipple joint sends a well bottom data signal to a pulse driving circuit module, the pulse driving circuit module transmits the received signal to a pulse generator 3, the pulse generator 3 generates a corresponding pulse signal according to the received signal, an uphole pulse signal receiving system receives the pulse signal sent by the pulse generator 3, so that the well bottom data is obtained, and the uploading of the signal is completed; when the signal is sent to the underground CPU in the well, the ground bypass valve is operated to open and close, so that the slurry displacement in the vertical pipe is split, the change of the displacement causes the voltage change of the slurry turbine generator 4, the slurry turbine generator 4 sends the voltage signal to the signal receiving and transmitting module, and the signal receiving and transmitting module sends the received signal to the underground CPU, so that the downloading of the signal is completed.
Claims (8)
1. The underground two-way communication device is characterized by comprising a non-magnetic nipple, an electronic nipple, a pulse generator, a mud turbine generator and a contact pin connecting sleeve, wherein the underground two-way communication device is connected into an underground tool, the lower end of the electronic nipple is connected with a measurement-while-drilling nipple provided with a measuring well deviation and azimuth well bottom data instrument, the inner side of the lower part of the non-magnetic nipple is fixedly arranged on the outer side of the upper part of the electronic nipple in a sealing way, an outer sleeve is fixedly arranged on the outer side of the upper part of the electronic nipple in a sealing way, a power circuit board and a pulse driving circuit board are fixedly arranged between the outer sleeve and the electronic nipple, the pulse generator, the mud turbine generator and the contact pin connecting sleeve are fixedly arranged in the non-magnetic nipple from top to bottom, the lower end of the contact pin connecting sleeve is fixedly arranged on the upper end of the electronic nipple in a sealing way, a first wire passing channel is arranged on the contact pin connecting sleeve, a second wire passing channel communicated with the first wire passing channel is arranged on the electronic short section above the power circuit board, a third wire passing channel communicated with the second wire passing channel is axially arranged on the nonmagnetic short section, a wire breakage preventing assembly capable of connecting a wire between the second wire passing channel and the third wire passing channel is arranged between the inner side of the lower part of the nonmagnetic short section and the outer side of the upper part of the electronic short section in a sealing way, a fourth wire passing channel is axially arranged on the electronic short section below the pulse driving circuit board, the power output end of the mud turbine generator is connected with the power input end of the power circuit board, the power output end of the power circuit board is respectively connected with the power input end of the pulse driving circuit board and the power input end of the pulse generator, the signal output end of the pulse driving circuit board is electrically connected with the signal input end of the pulse generator, the signal output end of the mud turbine generator is electrically connected with the signal input end of the pulse driving circuit board;
the anti-breakage assembly comprises a fixed wiring conductor and a rotary wiring conductor which can rotate relatively and realize electric connection; an outer slip ring limit groove communicated with a third wire passing channel is formed in the inner side of the lower end of the nonmagnetic nipple, a radial channel is communicated with the electronic nipple between the outer slip ring limit groove and the second wire passing channel, and a fixed wiring conductor is fixedly arranged outside the electronic nipple at the radial channel in an insulating manner through an inner insulating sleeve; an outer insulating sleeve which is arranged in the outer slip ring limit groove in an insulating way is wrapped outside the rotary wiring conductor; the fixed wiring conductor and the rotary wiring conductor are respectively provided with a wiring terminal, and the inner insulating sleeve is provided with an inner wire passing channel which can electrically connect the cable in the radial channel with the wiring terminal of the fixed wiring conductor; an outer wire passing channel which can electrically connect the cable in the third wire passing channel with the wiring terminal of the rotary wiring conductor is arranged on the outer insulating sleeve; the inner side of the lower end of the nonmagnetic nipple is fixedly arranged with the outer side of the upper end of the electronic nipple through threads.
2. The underground bidirectional communication device according to claim 1, wherein a pulse driving circuit module and a signal receiving and transmitting module are arranged on the pulse driving circuit board, the power output end of the power circuit board is connected with the pulse driving circuit module and the power input end of the signal receiving and transmitting module, the signal output end of the pulse driving circuit module is electrically connected with the signal input end of the pulse generator, and the signal output end of the mud turbine generator is electrically connected with the signal input end of the signal receiving and transmitting module; or/and, an upper wiring port is arranged at the upper end of the third wiring channel, a lower wiring port is arranged at the bottom end of the fourth wiring channel, an upper sealing groove is arranged on the nonmagnetic nipple above the upper wiring port, and a lower sealing groove is arranged on the outer side of the electronic nipple below the lower wiring port.
3. The downhole two-way communication device according to claim 1 or 2, wherein a step ring groove with a gradually decreasing cross-sectional width from top to bottom is formed in the inner side of the upper part of the pin connecting sleeve, the outer side of the lower end of the mud turbine generator and the inner side of the upper end of the pin connecting sleeve are fixedly mounted together at the step ring groove, a multi-core pin is fixedly mounted in the step ring groove, and a first wire passing channel communicated with the step ring groove is formed in the pin connecting sleeve below the step ring groove; or/and, an upper check ring is arranged at the outer side of the electronic nipple between the nonmagnetic nipple and the outer sleeve in a sealing manner, an outer limit groove is formed at the inner side of the lower part of the upper check ring, an inner limit groove corresponding to the outer limit groove is formed at the outer side of the electronic nipple corresponding to the outer limit groove, and positioning rings for axially limiting the upper check ring are fixedly arranged in the outer limit groove and the inner limit groove; or/and, an outer ring table is arranged on the outer side of the lower part of the electronic short section, the outer sleeve seat is arranged on the outer ring table, and a lower check ring is sealed and sleeved between the outer sleeve and the outer ring table; or/and, a limit ring groove is arranged on the inner side of the nonmagnetic short section corresponding to the pulse generator, and a fixed sleeve for supporting the pulse generator is arranged in the limit ring groove in a sealing way.
4. The downhole two-way communication device according to claim 1 or 2, wherein a wiring channel is formed between the outer side of the electronic nipple between the second wiring channel and the fourth wiring channel and the inner side of the outer sleeve, at least one upper fixing groove is circumferentially arranged on the outer side of the electronic nipple corresponding to the inner side and the outer side of the outer sleeve, a power circuit board is fixed in the upper fixing groove, at least one lower fixing groove is circumferentially arranged on the outer side of the electronic nipple below the upper fixing groove, and a pulse driving circuit board is fixed in the lower fixing groove; the outer side of the electronic short section between the second wire passing channel and the upper fixing groove is provided with a first bypass annular groove, the outer side of the electronic short section between the upper fixing groove and the lower fixing groove is provided with a second bypass annular groove, and the outer side of the electronic short section between the lower fixing groove and the fourth wire passing channel is provided with a third bypass annular groove.
5. The downhole two-way communication device according to claim 3, wherein a wiring channel is formed between the outer side of the electronic nipple between the second wiring channel and the fourth wiring channel and the inner side of the outer sleeve, at least one upper fixing groove is circumferentially arranged on the outer side of the electronic nipple corresponding to the inner side and the outer side of the outer sleeve, the power circuit board is fixed in the upper fixing groove, at least one lower fixing groove is circumferentially arranged on the outer side of the electronic nipple below the upper fixing groove, and the pulse driving circuit board is fixed in the lower fixing groove; the outer side of the electronic short section between the second wire passing channel and the upper fixing groove is provided with a first bypass annular groove, the outer side of the electronic short section between the upper fixing groove and the lower fixing groove is provided with a second bypass annular groove, and the outer side of the electronic short section between the lower fixing groove and the fourth wire passing channel is provided with a third bypass annular groove.
6. The downhole two-way communication device according to claim 1, 2 or 5, wherein a front-back through mounting window is arranged on one side of the contact pin connecting sleeve near the upper end of the electronic nipple, a connecting through hole penetrating to the bottom of the contact pin connecting sleeve is arranged at the bottom of the mounting window, a threaded hole is arranged on the electronic nipple corresponding to the connecting through hole, and an anti-rotation fixing bolt capable of fixedly connecting the contact pin connecting sleeve and the electronic nipple is fixedly arranged in the connecting through hole and the threaded hole which correspond to each other through threads; or/and, an internal thread or an external thread is arranged on the upper side of the nonmagnetic nipple, and an internal thread or an external thread is arranged on the lower side of the electronic nipple; or/and at least one sealing ring is fixedly arranged between the outer side of the lower end of the contact pin connecting sleeve and the inner side of the upper end of the electronic short section.
7. The underground two-way communication device according to claim 3, wherein one side of the contact pin connecting sleeve near the upper end of the electronic nipple is provided with a front-back through installation window, the bottom of the installation window is provided with a connecting through hole penetrating to the bottom of the contact pin connecting sleeve, the electronic nipple corresponding to the connecting through hole is provided with a threaded hole, and anti-rotation fixing bolts capable of fixedly connecting the contact pin connecting sleeve and the electronic nipple are fixedly arranged in the connecting through hole and the threaded hole which correspond to each other through threads; or/and, an internal thread or an external thread is arranged on the upper side of the nonmagnetic nipple, and an internal thread or an external thread is arranged on the lower side of the electronic nipple; or/and at least one sealing ring is fixedly arranged between the outer side of the lower end of the contact pin connecting sleeve and the inner side of the upper end of the electronic short section.
8. The underground two-way communication device according to claim 4, wherein one side of the contact pin connecting sleeve near the upper end of the electronic nipple is provided with a front-back through installation window, the bottom of the installation window is provided with a connecting through hole penetrating to the bottom of the contact pin connecting sleeve, the electronic nipple corresponding to the connecting through hole is provided with a threaded hole, and anti-rotation fixing bolts capable of fixedly connecting the contact pin connecting sleeve and the electronic nipple are fixedly arranged in the connecting through hole and the threaded hole which correspond to each other through threads; or/and, an internal thread or an external thread is arranged on the upper side of the nonmagnetic nipple, and an internal thread or an external thread is arranged on the lower side of the electronic nipple; or/and at least one sealing ring is fixedly arranged between the outer side of the lower end of the contact pin connecting sleeve and the inner side of the upper end of the electronic short section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611129970.7A CN106685630B (en) | 2016-12-09 | 2016-12-09 | Underground two-way communication device |
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| CN201611129970.7A CN106685630B (en) | 2016-12-09 | 2016-12-09 | Underground two-way communication device |
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| CN106685630A CN106685630A (en) | 2017-05-17 |
| CN106685630B true CN106685630B (en) | 2023-07-07 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485922B (en) * | 2019-09-02 | 2020-06-05 | 中国石油天然气集团有限公司 | Underground power and bidirectional communication system and use method thereof |
| CN110748338B (en) * | 2019-12-02 | 2023-03-31 | 中国石油集团西部钻探工程有限公司 | Bidirectional communication power short joint |
| CN111594740B (en) * | 2020-05-22 | 2021-04-13 | 中国科学院地质与地球物理研究所 | Wiring harness routing structure of generator in drilling tool |
| CN112103741A (en) * | 2020-07-24 | 2020-12-18 | 西安电子科技大学 | Coaxial multi-core high-temperature-resistant high-pressure-resistant sealing connector |
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Effective date of registration: 20191010 Address after: No. 6, liupukang, Xicheng District, Beijing 100120 Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 830026 science and technology management division, West drilling and Drilling Engineering Institute, No. 326 South Central Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region, China Applicant before: CNPC Xibu Drilling Engineering Co.,Ltd. |
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