CN219492267U - Underground multi-trigger control system - Google Patents
Underground multi-trigger control system Download PDFInfo
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- CN219492267U CN219492267U CN202320389986.0U CN202320389986U CN219492267U CN 219492267 U CN219492267 U CN 219492267U CN 202320389986 U CN202320389986 U CN 202320389986U CN 219492267 U CN219492267 U CN 219492267U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses an underground multi-trigger control system, which comprises a ground wireless trigger device and a plurality of underground instruments, wherein the ground wireless trigger device comprises an electromagnetic wave trigger device and/or a vibration trigger device which are arranged on the ground, the underground instruments are sequentially arranged at different sectional positions of a horizontal well in sequence, and the electromagnetic wave trigger device sequentially triggers all the underground instruments to start working according to time sequence through electromagnetic wave signals; the vibration triggering device is combined into different triggering sequences through the on and off of the ground slurry pump, and the corresponding triggering sequence vibration signals detected by the vibration sensor are used for triggering the underground instruments to start working in sequence according to time sequence. The two triggering modes are compatible, any one can complete triggering, non-contact accurate identification, accurate locking and intelligent opening can be realized on underground instruments, and shale oil gas and compact oil gas are supported for quick, economical and efficient development.
Description
Technical Field
The utility model relates to the technical field of oil and gas exploration, in particular to a downhole multi-trigger control system.
Background
With the increase of oil and gas demands and the gradual penetration of exploration work, oil and gas reservoir resources are gradually turned to unconventional oil and gas reservoirs such as shale oil, shale gas and tight sandstone oil, underground triggering is always one of the problems to be solved in well cementation and fracturing, and the operations which are triggered in time sequence are increasingly required at different underground positions under high temperature and high pressure. For example, the staged fracturing completion technology of the horizontal well has become a key means for the production improvement of unconventional oil and gas reservoirs; the fracturing sliding sleeve is a rapid, economical and reliable fracturing tool, and is widely applied to the reconstruction operation of unconventional oil and gas reservoirs such as compact oil and gas, shale oil and gas and the like at home and abroad. How to realize non-contact intelligent triggering and opening of underground instruments becomes an urgent need in oil and gas exploration operation.
Disclosure of Invention
Therefore, the utility model provides a multi-trigger control system for an underground fracturing sliding sleeve, which aims to solve the problem of operation requirements for different underground positions under high-temperature and high-pressure conditions and needing to be triggered in time sequence.
In order to achieve the above object, the present utility model provides the following technical solutions: an underground multi-trigger control system comprises a ground wireless trigger device and a plurality of underground instruments, wherein the ground wireless trigger device comprises an electromagnetic wave trigger device and/or a vibration trigger device which are arranged on the ground, and the underground instruments are sequentially arranged at different sectional positions of a horizontal well;
the electromagnetic wave triggering device comprises an electromagnetic wave transmitting circuit assembly and a transmitting coil assembly which are connected, the electromagnetic wave transmitting circuit assembly is used for controlling the transmitting coil assembly to transmit electromagnetic waves with different frequencies, each underground instrument is respectively provided with a receiving coil for receiving electromagnetic waves with specific frequencies, and the electromagnetic wave signals are used for triggering the underground instruments to start working according to time sequences;
the vibration triggering device comprises a ground slurry pump, each underground instrument is respectively provided with a vibration sensor, different triggering sequences are formed by the opening and closing of the ground slurry pump, and corresponding triggering sequence vibration signals detected by the vibration sensors are used for triggering the underground instruments to start working according to time sequence.
Further, the electromagnetic wave triggering device comprises a first shell, a second shell, a power supply assembly, a small-diameter battery pack wiring board assembly, an electromagnetic wave transmitting circuit assembly and a transmitting coil assembly, wherein the first shell is connected with the second shell, a sealing ring is arranged at the joint of the first shell and the second shell, the power supply assembly and the electromagnetic wave transmitting circuit assembly are arranged in the first shell, the transmitting coil assembly is arranged in the second shell, and the power supply assembly is connected with the electromagnetic wave transmitting circuit assembly through the small-diameter battery pack wiring board assembly, and the electromagnetic wave transmitting circuit assembly is connected with the transmitting coil assembly.
Further, power supply module includes lithium cell, battery urceolus, battery support, plug inner core, goes up electric plug and goes up the electric plug, the battery support is connected to the lithium cell, the battery urceolus cover is established the outside of lithium cell, the plug inner core passes through the nut to be fixed at battery support tip, the plug inner core is connected go up electric plug, it is in through the sealing washer shutoff to go up the electric plug the tip of first casing, it is fixed through the jump ring to go up the electric plug.
Further, the electromagnetic wave transmitting circuit assembly comprises a power interface J1, a transmitting frequency adjusting circuit, a signal transmitting chip U1 and a signal amplifying chip U2, wherein the power interface J1 is connected with the frequency adjusting circuit, the transmitting frequency adjusting circuit is connected with the signal transmitting chip U1, and the signal transmitting chip U1 is connected with the signal amplifying chip U2.
Further, the underground instrument further comprises a 485 communication module, an intelligent control module and an action mechanism which are sequentially connected, wherein the intelligent control module of the adjacent underground instrument acquires the on-off state information of the previous instrument through 485 communication, and if and only if the state of the previous instrument is on, the intelligent control module of the underground instrument controls the action mechanism to start working when receiving a trigger signal.
Further, the downhole tool includes a fracturing sleeve, a downhole setting tool including a liner hanger.
The utility model has the following advantages:
the utility model provides an underground multi-trigger control system, which comprises a ground wireless trigger device and a plurality of underground instruments, wherein the ground wireless trigger device comprises an electromagnetic wave trigger device and/or a vibration trigger device which are arranged on the ground, the underground instruments are sequentially arranged at different sectional positions of a horizontal well, the electromagnetic wave trigger device comprises an electromagnetic wave transmitting circuit assembly and a transmitting coil assembly which are connected, the electromagnetic wave transmitting circuit assembly transmits electromagnetic waves with different frequencies through controlling the transmitting coil assembly, each underground instrument is respectively provided with a receiving coil for receiving the electromagnetic waves with specific frequency, and the electromagnetic wave signals sequentially trigger the underground instruments to start working according to the time sequence; the vibration triggering device comprises a ground slurry pump, each underground instrument is respectively provided with a vibration sensor, different triggering sequences are formed by the opening and closing of the ground slurry pump, and corresponding triggering sequence vibration signals detected by the vibration sensors are used for triggering the underground instruments to start working according to time sequence. The two triggering modes are compatible, any one can complete triggering, non-contact accurate identification, accurate locking and intelligent opening can be realized on underground instruments, and shale oil gas and compact oil gas are supported for quick, economical and efficient development.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.
Fig. 1 is a schematic structural diagram of a downhole multi-trigger control system according to embodiment 1 of the present utility model;
fig. 2 is a schematic structural diagram of an electromagnetic wave triggering device in an underground multi-triggering control system according to embodiment 1 of the present utility model;
fig. 3 is a circuit diagram of an electromagnetic wave transmitting circuit assembly in the underground multi-trigger control system according to embodiment 1 of the present utility model;
fig. 4 is a timing chart of the start-stop pump triggering of the vibration triggering device in the downhole multi-triggering control system according to embodiment 1 of the present utility model.
In the figure: the power-on plug 1, a power-on plug 2, a nut 3, a battery bracket 4, a battery outer barrel 5, a first shell 6, a small-diameter battery pack wiring board assembly 7, an electromagnetic wave transmitting circuit assembly 8, a transmitting coil assembly 9, a second shell 10, a clamp spring 11, a first sealing ring 12, a plug inner core 13, a cross-shaped groove countersunk stainless steel screw 14, a lithium battery 15, a second sealing ring 16, a male and female stud 17, a screw 18, a ground wireless triggering device 19, a downhole instrument 20 and an electromagnetic wave triggering device 21.
Detailed Description
Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1, the present embodiment provides a downhole multi-trigger control system, which includes a ground wireless trigger device 19 and a plurality of downhole instruments 20, wherein the ground wireless trigger device 19 includes an electromagnetic wave trigger device 21 and/or a vibration trigger device disposed on the ground, and the plurality of downhole instruments 20 are sequentially disposed at different section positions of a horizontal well.
As shown in fig. 2, the electromagnetic wave triggering device 21 includes an electromagnetic wave transmitting circuit assembly 8 and a transmitting coil assembly 9 connected with each other, the electromagnetic wave transmitting circuit assembly 8 transmits electromagnetic waves with different frequencies by controlling the transmitting coil assembly 9, each downhole instrument 20 is respectively provided with a receiving coil for receiving electromagnetic waves with a specific frequency, and each downhole instrument 20 is sequentially triggered to start working according to time sequence by an electromagnetic wave signal. If the emission frequencies are respectively 200Hz, 300Hz, … … and 2000Hz, one frequency corresponds to one instrument in the well, the underground instrument 20 is assembled in sequence according to the working time sequence, and the triggering is completed only when the electromagnetic induction signals with the corresponding frequencies are received, so that the same-frequency induction triggering is realized.
In this embodiment, the electromagnetic wave triggering device 21 includes a first housing 6, a second housing 10, a power supply assembly, a small-diameter battery pack wiring board assembly 7, an electromagnetic wave transmitting circuit assembly 8 and a transmitting coil assembly 9, the first housing 6 is connected with the second housing 10, a second sealing ring 16 is disposed at the connection position of the first housing 6 and the second housing 10, the power supply assembly and the electromagnetic wave transmitting circuit assembly 8 are disposed in the first housing 6, the transmitting coil assembly 9 is disposed in the second housing 10, the power supply assembly is connected with the electromagnetic wave transmitting circuit assembly 8 through the small-diameter battery pack wiring board assembly 7, the small-diameter battery pack wiring board assembly 7 is fixedly connected with the electromagnetic wave transmitting circuit assembly 8 through a male stud 17 and a screw 18, and the electromagnetic wave transmitting circuit assembly 8 is connected with the transmitting coil assembly 9.
The power supply assembly comprises a lithium battery 15, a battery outer barrel 5, a battery support 4, a plug inner core 13, a power-on plug 2 and a power-on plug 1, wherein the lithium battery 15 is connected with the battery support 4, the battery outer barrel 5 is sleeved outside the lithium battery 15, the transmitting coil assembly 9 is connected with the battery outer barrel 5 through 4 cross groove countersunk stainless steel screws 14, the plug inner core 13 is fixed at the end part of the battery support 4 through nuts 3, the plug inner core 13 is connected with the power-on plug 2, the power-on plug 1 is blocked at the end part of the first shell 6 through a first sealing ring 12, and the power-on plug 1 is fixed through a clamp spring 11 to prevent falling.
The electromagnetic wave transmitting circuit assembly 8 and the transmitting coil assembly 9 are powered by the lithium battery 15, and after the power-on plug 2 is connected with the plug inner core 13, the system can be electrified, so that the system is ensured not to consume electricity when not working. When the underground triggering operation is carried out, the wellhead is electrified, the battery is electrified, the circuit component controls the coil component to generate excitation according to a designed program, and when the well bottom reaches the position corresponding to the receiving coil, the triggering operation is carried out.
As shown in fig. 3, the electromagnetic wave transmitting circuit assembly 8 includes a power interface J1, a transmitting frequency adjusting circuit, a signal transmitting chip U1, and a signal amplifying chip U2, wherein the power interface J1 is connected to the frequency adjusting circuit, the transmitting frequency adjusting circuit is connected to the signal transmitting chip U1, and the signal transmitting chip U1 is connected to the signal amplifying chip U2. In this embodiment, J1 is connected to a battery to supply power, and the transmitting frequency of U1 is adjusted by adjusting resistors R1 and R2 and capacitors C1 and C2, and after the U2 is amplified, the U1 transmitting signal is excited and transmitted by a circuit formed by J2 and C3 to C7, and finally the receiving circuit receives the signal, so as to trigger the corresponding function to execute action.
The vibration triggering device comprises a ground slurry pump, each underground instrument 20 is respectively provided with a vibration sensor, different triggering sequences are formed by the opening and closing of the ground slurry pump, and the corresponding triggering sequence vibration signals detected by the vibration sensors are used for triggering the underground instruments 20 to start working in sequence according to time sequence.
As shown in fig. 4, different trigger sequences can be realized by setting different Tb, tc, td, te, tf values of the start and stop of the ground mud pump, and the start and stop of the pump are combined into a sequence, and the sequence is a trigger instruction. The vibration sensor of the downhole instrument 20 detects two states, namely, a vibration value exists, a vibration value does not exist, a pump is started, a vibration value exists, a pump is stopped, the ground is started and stopped for three times for different time periods, and after the downhole instrument 20 detects, the corresponding downhole instrument 20 is triggered.
The two trigger modes are mutually independent, any one mode can be started to complete triggering, and when one mode is started, the other mode is restarted, the triggering is not repeated in a certain time.
In this embodiment, the downhole instrument 20 further includes a 485 communication module, an intelligent control module and an action mechanism, which are sequentially connected, the intelligent control module of the adjacent downhole instrument 20 obtains the on-off state information of the previous instrument through 485 communication, and if and only if the state of the previous instrument is on, the intelligent control module of the downhole instrument 20 controls the action mechanism to start working when receiving the trigger signal.
Specifically, because there are a plurality of downhole instruments 20 and the downhole instruments 20 need to be started according to a time sequence, the downhole instruments 20 are numbered according to the time sequence, each instrument is provided with two states, wherein '1' is the started working, and '0' is the unopened working, the instrument with the later number searches the state of the previous instrument, if '0', no matter whether the ground ball-throwing or pump-starting and stopping sequence meets the starting condition of the downhole instruments 20, the opening action is not executed, and if '1', the ball-throwing or pump-starting and stopping sequence meets the starting condition, the downhole instruments 20 are opened to work.
In this embodiment, the downhole tool 20 comprises a fracturing sleeve, a downhole setting tool comprising a liner hanger. Taking a liner hanger as an example, the intelligent control liner hanger system mainly comprises an ultrahigh-pressure liner hanger, an intelligent control nipple, a power hydraulic cylinder and the like, and after the intelligent control nipple receives a signal trigger signal, high-pressure oil is pumped into the hydraulic cylinder to drive a piston, a plug cap and a tieback cylinder to move downwards, so that sitting and hanging actions are realized.
While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.
Claims (6)
1. The underground multi-trigger control system is characterized by comprising a ground wireless trigger device and a plurality of underground instruments, wherein the ground wireless trigger device comprises an electromagnetic wave trigger device and/or a vibration trigger device which are arranged on the ground, and the underground instruments are sequentially arranged at different sectional positions of a horizontal well;
the electromagnetic wave triggering device comprises an electromagnetic wave transmitting circuit assembly and a transmitting coil assembly which are connected, the electromagnetic wave transmitting circuit assembly is used for controlling the transmitting coil assembly to transmit electromagnetic waves with different frequencies, each underground instrument is respectively provided with a receiving coil for receiving electromagnetic waves with specific frequencies, and the electromagnetic wave signals are used for triggering the underground instruments to start working according to time sequences;
the vibration triggering device comprises a ground slurry pump, each underground instrument is respectively provided with a vibration sensor, different triggering sequences are formed by the opening and closing of the ground slurry pump, and corresponding triggering sequence vibration signals detected by the vibration sensors are used for triggering the underground instruments to start working according to time sequence.
2. The underground multi-trigger control system according to claim 1, wherein the electromagnetic wave trigger device comprises a first shell, a second shell, a power supply assembly, a small-diameter battery pack wiring board assembly, an electromagnetic wave transmitting circuit assembly and a transmitting coil assembly, the first shell is connected with the second shell, a sealing ring is arranged at the joint of the first shell and the second shell, the power supply assembly and the electromagnetic wave transmitting circuit assembly are arranged in the first shell, the transmitting coil assembly is arranged in the second shell, the power supply assembly is connected with the electromagnetic wave transmitting circuit assembly through the small-diameter battery pack wiring board assembly, and the electromagnetic wave transmitting circuit assembly is connected with the transmitting coil assembly.
3. The downhole multi-trigger control system according to claim 2, wherein the power supply assembly comprises a lithium battery, a battery outer barrel, a battery support, a plug inner core, a power plug and a power plug, the lithium battery is connected with the battery support, the battery outer barrel is sleeved outside the lithium battery, the plug inner core is fixed at the end of the battery support through a nut, the plug inner core is connected with the power plug, the power plug is plugged at the end of the first shell through a sealing ring, and the power plug is fixed through a clamp spring.
4. The downhole multi-trigger control system according to claim 2, wherein the electromagnetic wave transmitting circuit assembly comprises a power interface J1, a transmitting frequency adjusting circuit, a signal transmitting chip U1 and a signal amplifying chip U2, wherein the power interface J1 is connected with the frequency adjusting circuit, the transmitting frequency adjusting circuit is connected with the signal transmitting chip U1, and the signal transmitting chip U1 is connected with the signal amplifying chip U2.
5. The underground multi-trigger control system according to claim 1, wherein the underground instrument further comprises a 485 communication module, an intelligent control module and an action mechanism which are sequentially connected, wherein the intelligent control module of the adjacent underground instrument obtains the on-off state information of the previous instrument through 485 communication, and the intelligent control module of the underground instrument controls the action mechanism to start working when receiving the trigger signal if and only if the state of the previous instrument is on.
6. A downhole multi-trigger control system according to claim 1, wherein the downhole tool comprises a fracturing sleeve, a downhole setting tool comprising a liner hanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320389986.0U CN219492267U (en) | 2023-03-06 | 2023-03-06 | Underground multi-trigger control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320389986.0U CN219492267U (en) | 2023-03-06 | 2023-03-06 | Underground multi-trigger control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219492267U true CN219492267U (en) | 2023-08-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320389986.0U Active CN219492267U (en) | 2023-03-06 | 2023-03-06 | Underground multi-trigger control system |
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|---|---|
| CN (1) | CN219492267U (en) |
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2023
- 2023-03-06 CN CN202320389986.0U patent/CN219492267U/en active Active
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