CN212454352U - Remote control expanding packer - Google Patents
Remote control expanding packer Download PDFInfo
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- CN212454352U CN212454352U CN202020942592.XU CN202020942592U CN212454352U CN 212454352 U CN212454352 U CN 212454352U CN 202020942592 U CN202020942592 U CN 202020942592U CN 212454352 U CN212454352 U CN 212454352U
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- packer
- chamber
- remote control
- microprocessor
- converter
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Abstract
The utility model relates to a remote control expanding packer and a use method thereof, which belongs to the field of underground equipment for oil exploitation, in particular to a remote control expanding packer for fracturing and a use method thereof, comprising an upper joint and a lower joint, wherein the upper joint and the lower joint are connected through a packer body; the utility model discloses utilize remote control device to realize the control to drive arrangement to through power transmission device with drive arrangement's power transmission to rotatory sleeve, realize rotatory telescopic rotation, thereby realize that first feed liquor hole and second feed liquor hole switch on or the shutoff, realize the remote control whether first feed liquor hole and second feed liquor hole switch on, effectively avoid the phenomenon of seat sealing midway appearing in the in-process of going into the well.
Description
Technical Field
The utility model belongs to oil development underground equipment field, concretely relates to fracturing is with a remote control expanding packer and application method thereof.
Background
The packer is an elastic sealing element and is used for sealing annular spaces between a pipe column and a borehole and between the pipe column and isolating a production zone so as to control production (injection) liquid and protect a downhole tool of a casing pipe; the tool is an important tool for realizing oil and gas field exploitation, can provide an effective mechanical means for normal production of oil and gas wells and smooth implementation of various underground technological measures, and occupies a very important position in the oil and gas field exploration and development process.
The conventional K344 steel skeleton packer is a hydraulic expansion type packer, and is fixed in a suspension mode, set in a hydraulic mode and unset in a hydraulic mode. The rubber cylinder expands outwards to seal the annular space of the oil-proof casing. When the tool is lowered to a preset position, hydraulic pressure is applied from the oil pipe, when the internal and external pressure difference reaches 0.5-0.7Mpa, the liquid pressure transmits the pressure to the rubber cylinder through the liquid inlet hole on the central cylinder, so that the rubber cylinder expands, the annular space of the oil sleeve is sealed, the pressure in the oil pipe is released, and the rubber cylinder is withdrawn for unsealing.
The existing expanding packer for the oil field is easy to have the phenomenon of midway setting in the process of going down the well, and influences the setting rate and the use effect of the packer for the oil field; and current oil field is with expanding packer only can realize setting and the deblocking of packer through hydraulic pressure, to the horizontal well sliding sleeve staged fracturing work progress, can not carry out the setting and the deblocking of selectivity to the packer, a plurality of expanding packers of generally going into the well, through disposable all setting or deblocking of suppressing, a lot of setting or deblocking cause the life decline of packer packing element, a plurality of packers use together can produce very big setting power or deblocking power simultaneously, easily lead to the unable complete setting of packer, the deblocking, the card bores scheduling problem easily appears simultaneously, there is very big risk.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an effectively solve conventional expanding packer in the construction appear down the time the packer in advance set seal, play out the time packing element expansion and the construction in can't test a remote control expanding packer and application method of sealing problem.
The utility model relates to a remote control expanding packer, including top connection and lower clutch, top connection and lower clutch link to each other through the packer body, the packer body includes the center tube and rotates the rotatory sleeve that sets up in the center tube, the central axis of rotatory sleeve is located same straight line with the central axis of center tube, be provided with first feed liquor hole on the rotatory sleeve, be provided with the second feed liquor hole on the center tube, the central axis in first feed liquor hole and second feed liquor hole is located the same cross section place plane of rotatory sleeve;
the central pipe is externally provided with a rotating device which is used for driving the rotating sleeve to rotate so as to conduct the first liquid inlet hole and the second liquid inlet hole, the rotating device comprises a driving device and a power transmission device which are connected, and the power transmission device penetrates through the central pipe and then is connected with the rotating sleeve;
the driving device is connected with a remote control device.
Preferably, the remote control device comprises a microprocessor which receives the digital electric signal, identifies, judges and processes the digital electric signal and generates a corresponding control signal; the microprocessor is electrically connected with an A/D converter which converts the analog electric signal into a digital signal;
the A/D converter is electrically connected with an acoustoelectric converter which is used for receiving signals and converting the signals into analog electric signals, the acoustoelectric converter is electrically connected with a ground control system which is used for sending signals to the acoustoelectric converter, and the ground control system is used for sending vibration sound wave signals;
the driving device is used for receiving a control signal sent by the microprocessor and is electrically connected with the microprocessor;
and the microprocessor is connected with a power supply.
Preferably, the power supply is a lithium battery.
Preferably, a charging port is arranged on the lithium battery, and the charging port extends out of the packer body.
Preferably, the peripheral surface of the central tube is fixedly provided with an accommodating chamber, and the remote control devices are fixedly arranged in the accommodating chamber.
Preferably, the holding chamber sets up to four, is communication chamber, control chamber, transmission chamber and execution chamber respectively, communication chamber, control chamber, transmission chamber and execution chamber communicate each other, sound electric transducer and AD converter are fixed to be set up in the communication chamber, microprocessor and power supply are fixed to be set up in the control chamber, drive arrangement is fixed to be set up in the transmission chamber, power transmission device is fixed to be set up in executing the chamber.
Or preferably, the driving device is a miniature speed reducing motor, an output shaft is rotatably arranged on the miniature speed reducing motor, an automatic switch for controlling the miniature speed reducing motor to start and stop is arranged on the miniature speed reducing motor, and the automatic switch is electrically connected with the microprocessor.
Preferably, the power transmission device comprises a transmission gear, the transmission gear is sleeved on an output shaft of the miniature speed reducing motor and is fixedly connected with the output shaft of the miniature speed reducing motor, and a rotation axis of the transmission gear is parallel to a central axis of the central tube;
the rotary sleeve is provided with a rack, the rack is fixedly arranged on the outer peripheral surface of the rotary sleeve and is laid along the circumferential direction of the rotary sleeve, a through hole is formed in the position, corresponding to the rack, of the central pipe, and the gear is meshed with the rack after extending through the hole.
A method for using a remote control expansion packer is to assemble the remote control expansion packer with a sliding sleeve and a tubular column on the ground, and specifically comprises the following steps: the primary packer is connected with the primary sliding sleeve and is positioned at the upper part of the primary sliding sleeve; the secondary sliding sleeve is connected with the primary packer and the secondary packer; the secondary sliding sleeve is positioned at the upper part of the primary packer, the secondary packer is positioned at the upper part of the secondary sliding sleeve, and the like, so that the connection of the whole fracturing string is completed;
the dislocation of first feed liquor hole and the second feed liquor hole of packer this moment, first feed liquor hole and second feed liquor hole are in the closed condition promptly, go into the pit shaft with the ground tubular column according to the construction requirement in, carry out first section fracturing, open one-level packer at first, and concrete operation is: the method comprises the steps that a vibration sound wave signal is sent through a ground control system, a sound-electricity converter converts the vibration sound wave signal into an analog electric signal after receiving the vibration sound wave signal, the analog electric signal is converted into a digital signal through an A/D converter and is transmitted to a microprocessor through the A/D converter, and the microprocessor identifies, judges and processes the digital electric signal and generates a corresponding control signal;
the automatic switch controls the micro speed reduction motor to be started after receiving the control signal, the micro speed reduction motor drives the transmission gear to rotate, the transmission gear is meshed with the rack on the rotary sleeve, so that the first liquid inlet hole and the second liquid inlet hole are overlapped, opening of the first liquid inlet hole and the second liquid inlet hole on the first-stage packer is realized, then, the ground is pressed, setting of the first-stage packer is realized, only the first-stage packer is in a setting state at the moment, and the multi-stage packers on the other upper parts are in an unsetting state, so that the top of the first-stage packer is communicated with a well mouth, the setting effect of the first-stage packer can be verified by continuously pressing, and when the setting is good, the first-stage constant-pressure sliding sleeve is continuously pressed and opened to;
after the first section of fracturing is completed, a vibration signal is sent by a ground control system to open a second-stage packer, the setting of the second-stage packer is completed, a ball is thrown to open a second-stage sliding sleeve, the setting effect of the second-stage packer is verified, if the setting is good, second-stage fracturing is carried out, and the like, the fracturing construction from a third section and a fourth section of a horizontal well to all sections is completed, the pressure of an oil pipe is relieved after the construction is completed, the deblocking of the packer is completed, the vibration signal is sent by the ground control system to close first liquid inlet holes and second liquid inlet holes of all the separators, a construction pipe column is pulled out after the blowout, and the whole fracturing construction is completed.
The utility model discloses simple structure, convenient to use utilizes remote control device to realize the control to drive arrangement to transmit drive arrangement's power to rotatory sleeve through power transmission device, realize rotatory telescopic rotation, thereby realize that first feed liquor hole and second feed liquor hole switch on or the shutoff, realize the remote control whether first feed liquor hole and second feed liquor hole switch on, effectively avoid the phenomenon of seat seal midway appearing in the in-process of going into the well, influence the speed and the result of use that the packer sat for the oil field.
The utility model relates to a remote control expanding packer, through the design on rotatory sleeve have first feed liquor hole, the center tube sets up second feed liquor hole, through rotating opening and closing of rotatory sleeve control packer feed liquor hole, the intercommunication and the shutoff in first feed liquor hole and second feed liquor hole promptly, and when the packer was down-time, the feed liquor hole of packer is in the closed condition, can effectively solve the phenomenon that the packer went into the well in-process appears midway to sit and seal, through the empty opening of signal control packer income liquid during the construction, packer upper portion and well head pass through the sleeve pipe intercommunication, can verify the seat of packer and seal the condition through the cover pressure, the problem that the packer can't test the sealing in the horizontal well segmentation fracturing process has been solved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of the remote control device of fig. 1.
Fig. 3 is a schematic view of a rotating sleeve.
Fig. 4 is an enlarged view of a in fig. 1.
FIG. 5 is a schematic view of packer and sliding sleeve and tubular string assembly.
Reference numerals: 1-upper joint, 2-packer body, 3-lower joint, 4-remote control device, 5-central tube, 6-rotary sleeve, 7-execution chamber, 8-transmission chamber, 9-control chamber, 10-communication chamber, 11-sound-electricity converter, 12-A/D converter, 13-microprocessor, 14-micro speed reducing motor, 15-transmission gear, 16-power supply, 17-rack, 18-first liquid inlet hole, 19-second liquid inlet hole.
Detailed Description
The utility model relates to a remote control expanding packer, including top connection 1 and lower clutch 3, top connection 1 and lower clutch 3 link to each other through packer body 2, packer body 2 includes center tube 5 and rotates the rotatory sleeve 6 that sets up in center tube 5, the central axis of rotatory sleeve 6 is located same straight line with the central axis of center tube 5, be provided with first feed liquor hole 18 on the rotatory sleeve 6, be provided with second feed liquor hole 19 on the center tube 5, the central axis of first feed liquor hole 18 and second feed liquor hole 19 is located the plane in the same cross section place of rotatory sleeve 6;
a rotating device for driving the rotating sleeve 6 to rotate to conduct the first liquid inlet hole 18 and the second liquid inlet hole 19 is arranged outside the central tube 5, the rotating device comprises a driving device and a power transmission device which are connected, and the power transmission device penetrates through the central tube 5 and then is connected with the rotating sleeve 6;
the driving device is connected with a remote control device 4.
In one embodiment, the remote control device 4 comprises a microprocessor 13 which receives the digital electric signal, identifies, judges and processes the digital electric signal and generates a corresponding control signal; the microprocessor 13 is electrically connected with an A/D converter 12 which converts an analog electric signal into a digital signal;
the A/D converter 12 is electrically connected with an acoustic-electric converter 11 which is used for receiving signals and converting the signals into analog electric signals, and the acoustic-electric converter 11 is electrically connected with a ground control system which is used for sending the signals to the acoustic-electric converter 11;
the driving device is used for receiving a control signal sent by the microprocessor 13 and is electrically connected with the microprocessor 13;
the microprocessor 13 is connected with a power supply 16.
The power supply 16 is a lithium battery.
In one embodiment, the lithium battery is provided with a charging port which extends out of the packer body 2.
In one embodiment, the central tube 5 is fixedly provided with a receiving chamber on the peripheral surface, and the remote control devices 4 are fixedly arranged in the receiving chamber.
The containing chambers are four in number and are respectively a communication chamber 10, a control chamber 9, a transmission chamber 8 and an execution chamber 7, the communication chamber 10, the control chamber 9, the transmission chamber 8 and the execution chamber 7 are communicated with each other, the sound-electricity converter 11 and the A/D converter 12 are fixedly arranged in the communication chamber 10, the microprocessor 13 and the power supply 16 are fixedly arranged in the control chamber 9, the driving device is fixedly arranged in the transmission chamber 8, and the power transmission device is fixedly arranged in the execution chamber 7.
In one embodiment, the driving device is a micro speed reducing motor 14, an output shaft is rotatably disposed on the micro speed reducing motor 14, and an automatic switch for controlling the start and stop of the micro speed reducing motor 14 is disposed on the micro speed reducing motor 14 and electrically connected to the microprocessor 13.
The power transmission device comprises a transmission gear 15, the transmission gear 15 is sleeved on an output shaft of the miniature speed reducing motor 14 and is fixedly connected with the output shaft of the miniature speed reducing motor 14, and the rotation axis of the transmission gear 15 is parallel to the central axis of the central tube 5;
the rotary sleeve 6 is provided with a rack 17, the rack 17 is fixedly arranged on the outer peripheral surface of the rotary sleeve 6 and is laid along the circumferential direction of the rotary sleeve 6, a through hole is formed in the position, corresponding to the rack 17, of the central pipe 5, and the gear extends out of the through hole and then is meshed with the rack 17.
A method for using a remote control expansion packer is to assemble the remote control expansion packer with a sliding sleeve and a tubular column on the ground, and specifically comprises the following steps: the primary packer is connected with the primary sliding sleeve and is positioned at the upper part of the primary sliding sleeve; the secondary sliding sleeve is connected with the primary packer and the secondary packer; the secondary sliding sleeve is positioned at the upper part of the primary packer, the secondary packer is positioned at the upper part of the secondary sliding sleeve, and the like, so that the connection of the whole fracturing string is completed;
the dislocation of first feed liquor hole 18 and second feed liquor hole 19 of packer this moment, first feed liquor hole 18 and second feed liquor hole 19 are in the closed condition promptly, go into the pit shaft with the ground tubular column according to the construction requirement in, carry out first section fracturing, open one-level packer at first, specific operation is: the ground control system sends a vibration sound wave signal, the sound-electricity converter 11 converts the vibration sound wave signal into an analog electric signal after receiving the vibration sound wave signal, the analog electric signal is converted into a digital signal through the A/D converter 12 and is transmitted to the microprocessor 13 through the A/D converter 12, and the microprocessor 13 identifies, judges and processes the digital electric signal to generate a corresponding control signal;
the automatic switch controls the micro speed reducing motor 14 to be started after receiving the control signal, the micro speed reducing motor 14 drives the transmission gear 15 to rotate, the transmission gear 15 is meshed with the rack 17 on the rotary sleeve 6, so that the first liquid inlet hole 18 and the second liquid inlet hole 19 are overlapped, further the first liquid inlet hole 18 and the second liquid inlet hole 19 on the first-stage packer are opened, then the first-stage packer is set through ground pressure, only the first-stage packer is in a setting state at the moment, the multi-stage packers on the upper parts of the rest of the multi-stage packers are in an unsetting state, therefore, the top of the first-stage packer is in a communication state with a well mouth, the setting effect of the first-stage packer can be verified through continuous pressure, and when the setting is good, the first-stage pressure sliding sleeve is continuously opened;
after the first section of fracturing is completed, a vibration signal is sent by a ground control system to open a second-stage packer, the setting of the second-stage packer is completed, a ball is thrown to open a second-stage sliding sleeve, the setting effect of the second-stage packer is verified, if the setting is good, second-stage fracturing is carried out, and the like, the fracturing construction from a third section and a fourth section of the horizontal well to all sections is completed, the pressure of an oil pipe is relieved after the construction is completed, the deblocking of the packer is completed, the vibration signal is sent by the ground control system to close first liquid inlet holes 18 and second liquid inlet holes 19 of all the separators, a construction pipe column is pulled out after the blowout, and the whole fracturing construction is completed.
The utility model relates to a remote control expanding packer, through the design on rotatory sleeve 6 have first feed liquor hole 18, center tube 5 sets up second feed liquor hole 19, control opening and closing of packer feed liquor hole through rotating rotatory sleeve 6, first feed liquor hole 18 and second feed liquor hole 19's intercommunication and shutoff promptly, and when the packer was down, the feed liquor hole of packer is in the closed condition, can effectively solve the phenomenon that the packer went into the well in-process appears midway to sit and seal, through the empty opening of signal control packer income liquid during the construction, packer upper portion and well head pass through the sleeve pipe intercommunication, can verify the seat condition of packer through the casing pressure, the problem that the packer can't be tested and sealed in the horizontal well segmentation fracturing process has been solved.
The equipment in the scheme is the prior art. For example, the sound-electricity converter 11, the a/D converter 12 and the microprocessor 13 are all the same as those in the patent application No. 201410121668.1 entitled "farmland fire remote alarm system based on photoacoustic effect".
Claims (8)
1. A remote control expansion packer comprises an upper joint (1) and a lower joint (3), wherein the upper joint (1) and the lower joint (3) are connected through a packer body (2), the packer body (2) comprises a central pipe (5) and a rotary sleeve (6) rotatably arranged in the central pipe (5), the central axis of the rotary sleeve (6) and the central axis of the central pipe (5) are positioned on the same straight line, a first liquid inlet hole (18) is formed in the rotary sleeve (6), a second liquid inlet hole (19) is formed in the central pipe (5), and the remote control expansion packer is characterized in that the central axes of the first liquid inlet hole (18) and the second liquid inlet hole (19) are positioned in the same plane of the cross section of the rotary sleeve (6);
a rotating device used for driving the rotating sleeve (6) to rotate and communicating the first liquid inlet hole (18) with the second liquid inlet hole (19) is arranged outside the central tube (5), the rotating device comprises a driving device and a power transmission device which are connected, and the power transmission device penetrates through the central tube (5) and then is connected with the rotating sleeve (6);
the driving device is connected with a remote control device (4).
2. A remotely controlled expandable packer as claimed in claim 1, characterised in that the remote control device (4) comprises a microprocessor (13) which receives the digital electrical signal and identifies, determines, processes and generates a corresponding control signal; the microprocessor (13) is electrically connected with an A/D converter (12) which converts the analog electric signal into a digital signal;
the A/D converter (12) is electrically connected with an acoustic-electric converter (11) which is used for receiving signals and converting the signals into analog electric signals, and the acoustic-electric converter (11) is electrically connected with a ground control system which is used for sending the signals to the acoustic-electric converter (11);
the driving device is used for receiving a control signal sent by the microprocessor (13) and is electrically connected with the microprocessor (13);
and the microprocessor (13) is connected with a power supply (16).
3. A remotely controlled expandable packer as claimed in claim 2, characterised in that the power supply (16) is a lithium battery.
4. A remotely controlled expandable packer as claimed in claim 3, characterised in that the lithium battery is provided with a charging port which extends out of the packer body (2).
5. A remotely controlled expandable packer as claimed in claim 4, characterised in that the central tube (5) is fixedly provided with a receiving chamber on its circumference, and the remote control devices (4) are fixedly arranged in the receiving chamber.
6. The remote control expansion packer as claimed in claim 5, wherein the number of the accommodating chambers is four, and the accommodating chambers are respectively a communication chamber (10), a control chamber (9), a transmission chamber (8) and an execution chamber (7), the communication chamber (10), the control chamber (9), the transmission chamber (8) and the execution chamber (7) are communicated with each other, the sound-electricity converter (11) and the A/D converter (12) are fixedly arranged in the communication chamber (10), the microprocessor (13) and the power supply (16) are fixedly arranged in the control chamber (9), the driving device is fixedly arranged in the transmission chamber (8), and the power transmission device is fixedly arranged in the execution chamber (7).
7. The remote control expansion packer as claimed in any one of claims 2-6, wherein the driving device is a micro reduction motor (14), an output shaft is rotatably arranged on the micro reduction motor (14), an automatic switch for controlling the micro reduction motor (14) to start and stop is arranged on the micro reduction motor (14), and the automatic switch is electrically connected with the microprocessor (13).
8. The remote control expandable packer as recited in claim 7, wherein the power transmission device comprises a transmission gear (15), the transmission gear (15) is sleeved on the output shaft of the miniature speed reduction motor (14) and is fixedly connected with the output shaft of the miniature speed reduction motor (14), and the rotation axis of the transmission gear (15) is parallel to the central axis of the central pipe (5);
be provided with rack (17) on rotatory sleeve (6), rack (17) are fixed to be set up on the outer peripheral face of rotatory sleeve (6) to lay along rotatory sleeve (6) circumference, the position that center tube (5) correspond rack (17) is provided with one and passes the hole, the gear stretches out and meshes with rack (17) after passing the hole mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020942592.XU CN212454352U (en) | 2020-05-29 | 2020-05-29 | Remote control expanding packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020942592.XU CN212454352U (en) | 2020-05-29 | 2020-05-29 | Remote control expanding packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212454352U true CN212454352U (en) | 2021-02-02 |
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ID=74477343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020942592.XU Expired - Fee Related CN212454352U (en) | 2020-05-29 | 2020-05-29 | Remote control expanding packer |
Country Status (1)
| Country | Link |
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| CN (1) | CN212454352U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320212A (en) * | 2022-03-10 | 2022-04-12 | 四川圣诺油气工程技术服务有限公司 | Oil pipe plug for under-pressure operation |
-
2020
- 2020-05-29 CN CN202020942592.XU patent/CN212454352U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320212A (en) * | 2022-03-10 | 2022-04-12 | 四川圣诺油气工程技术服务有限公司 | Oil pipe plug for under-pressure operation |
| CN114320212B (en) * | 2022-03-10 | 2022-05-13 | 四川圣诺油气工程技术服务有限公司 | Oil pipe plug for operation under pressure |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 Termination date: 20210529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |