CN113107416A

CN113107416A - Packer

Info

Publication number: CN113107416A
Application number: CN202110561857.0A
Authority: CN
Inventors: 吴帮民
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-23
Filing date: 2021-05-23
Publication date: 2021-07-13

Abstract

The invention discloses a packer, relates to the technical field of oil well equipment, and particularly relates to a packer which comprises an air cylinder, wherein three plugging air bags are fixedly sleeved outside the air cylinder, filling friction grains are fixedly installed on the outer sides of the plugging air bags, an inflation inlet is fixedly installed on the outer side of the air cylinder, an air pipe is fixedly installed above the air cylinder, and a first packing sleeve is fixedly installed below the air cylinder. This packer, through the fourth packing cover, the connecting rod, interior clamping plate, fixed spring housing, outer clamping plate, the design of fixed friction line, the cooperation of outer clamping plate and fixed friction line is under the effect of connecting rod and interior clamping plate, enable the inner wall of device and oil well to fix, prevent the inside activity of device at the oil well, the stable packing of the shutoff gasbag of being convenient for simultaneously, prevent the inside activity of shutoff gasbag at the oil well, cause the damage of shutoff gasbag, and convenient for operation, and simple structure, be convenient for practice thrift manufacturing cost.

Description

Packer

Technical Field

The invention relates to the technical field of oil well equipment, in particular to a packer.

Background

The hydraulic expansion type packer is connected to the underground pipe column and used for sealing and isolating the annular space between an oil pipe and an oil and gas well casing or an open hole well wall, when the annular space between the oil pipe and the oil and gas well casing or the open hole well wall needs to be sealed and isolated, the packer is connected to the underground pipe column and is driven to a designed depth, the sealing part on the packer is enabled to expand and seal the annular space between the oil casing and the annular space through hydraulic driving and other modes, the starting mode and the unsealing mode of the packers are different, the hydraulic expansion type packer is pressurized from the inside of the oil pipe after being driven to the designed depth, high-pressure liquid acts on the inner cavity of the rubber sleeve through pressure transfer pores in the packer, the rubber sleeve expands and seals the annular space between the oil casing and the annular space under the action of throttling pressure difference, when the oil pressure is released and the pressure of the oil casing is balanced, the rubber sleeve contracts, high-pressure liquid acts on piston mechanism through the inside biography pressure hole of packer, and under the throttle pressure differential action, the compression packing element takes place the inflation and seals the oil jacket annular space, and when the oil pressure release, oil jacket pressure balance back, the packing element leans on the resilience force reconversion of self to realize the deblocking.

In the use process of the existing packer, some problems usually exist, firstly, the existing packer is complex in general production structure and expensive in manufacturing cost, the existing packer is usually a disposable product when in use, the waste is increased, time and labor are usually consumed when in maintenance due to the complex internal structure, and therefore the packer is provided.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a packer, which solves the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a packer, includes the inflator, the external fixation of inflator has cup jointed three shutoff gasbag, the outside fixed mounting of shutoff gasbag has the friction line of packing, the outside fixed mounting of inflator has the inflation inlet, the top fixed mounting of inflator has the trachea, the below fixed mounting of inflator has first packing sleeve, the roof fixed mounting of first packing sleeve inner chamber has servo motor, servo motor's top fixed mounting has the power supply wire, servo motor output shaft bottom fixed mounting has the connection spring housing, the inside fixed cover of connecting the spring housing is equipped with connecting spring, the bottom fixed mounting of first packing sleeve has the spliced pole, the inboard of spliced pole is seted up threadedly, the bottom fixed connection carousel of connecting the spring housing, the below fixed mounting of carousel has the spliced pole, the external fixation of spliced pole bottom has cup jointed the connection bearing the outside fixed clamping sleeve that has cup jointed the connection bearing, the outside fixed mounting of centre gripping cover has four evenly distributed's slider, the spout has been seted up to the fixed position that third packing spacer inner wall is close to the bottom, the bottom fixed mounting of third packing spacer has the fourth packing spacer, the connecting rod has been cup jointed in the inside activity of fourth packing spacer, the inboard fixed cover of connecting rod has connect interior grip block, the outside fixed mounting of connecting rod has outer grip block, the fixed friction line of having seted up in the outside of outer grip block, the outside fixed mounting of fourth packing spacer has fixed spring housing.

Optionally, the inner side of the inflation port extends to the inside of the inflator, the outer side of the inflation port is located in the inner cavity of the plugging air bag, and the plugging air bag and the inflation port are communicated with the inner cavity of the inflator.

Optionally, the bottom of trachea extends to the inside of inflator, the outside of trachea top upwards extending to the oil well, trachea top and air pump fixed connection.

Optionally, the outside of carousel is seted up threadedly, the diameter value of carousel is the same with the internal diameter value of second packing sleeve, the diameter value of spliced pole is less than the diameter value of carousel.

Optionally, a sliding groove is formed in the top wall of the inner cavity of the fourth packing sleeve, the sliding groove in the third packing sleeve and the sliding groove in the fourth packing sleeve are parallel to each other from top to bottom, and the sliding grooves are matched with the sliding blocks.

Optionally, the fixed spring sleeve is located inside the fixed spring, and the rear end sides of the fixed spring sleeve and the fixed spring are fixedly connected with the inner side of the outer clamping plate.

Optionally, the outer clamping plate and the inner clamping plate are parallel to each other from front to back, the height values of the fourth packing sleeve and the outer clamping plate are the same as the height values of the inner clamping plate and the fourth packing sleeve, and the four outer clamping plates are uniformly distributed on the outer side of the fourth packing sleeve.

Optionally, the first and second packing sleeves and the third and fourth packing sleeves are parallel to each other from top to bottom, and have the same diameter value.

The invention provides a packer, which has the following beneficial effects:

1. this packer, through the fourth packing cover, the connecting rod, interior clamping plate, fixed spring housing, outer clamping plate, the design of fixed friction line, the cooperation of outer clamping plate and fixed friction line is under the effect of connecting rod and interior clamping plate, enable the inner wall of device and oil well to fix, prevent the inside activity of device at the oil well, the stable packing of the shutoff gasbag of being convenient for simultaneously, prevent the inside activity of shutoff gasbag at the oil well, cause the damage of shutoff gasbag, and convenient for operation, and simple structure, be convenient for practice thrift manufacturing cost.

2. This packer, offer the spout through the inside at third packing cover and fourth packing cover, utilize the centre gripping cover simultaneously, the slider, connect the bearing, the spliced pole, the carousel, the design of screw thread, the rotation that drives through servo motor and connects spring housing and spliced pole can conveniently push away the inside of centre gripping cover to four interior grip blocks downwards, grip block and the inseparable laminating of oil well inner wall will be outer through interior grip block and connecting rod, convenience of installation is fixed, prevent that the device from moving about in the inside of oil well.

3. This packer cup joints the shutoff gasbag through the outside at the inflator, offers the packing friction line in the outside of shutoff gasbag, simultaneously through the inside of inflation inlet intercommunication inflator and shutoff gasbag, makes the air pump of trachea connection oil well top, conveniently fixes the inside back at the oil well at the device, injects packing gas to the inside of shutoff gasbag through the inflator, makes the outside and the laminating of oil well inner wall of three shutoff gasbags, conveniently accomplishes sealing of oil well and separates, device simple structure, easy operation, and manufacturing cost is lower, can use repeatedly.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the present invention in a disassembled state;

FIG. 3 is a schematic structural view of the occlusion balloon of the present invention

FIG. 4 is a schematic structural view of a first packing sleeve of the present invention;

FIG. 5 is a schematic structural view of a second packing sleeve according to the present invention;

FIG. 6 is a schematic structural view of a third packing sleeve according to the present invention;

FIG. 7 is a schematic structural diagram of a fourth packing sleeve according to the present invention.

In the figure: 1. an air cylinder; 2. plugging the air bag; 3. filling friction lines; 4. an inflation inlet; 5. an air tube; 6. a first packing sleeve; 7. a servo motor; 8. a power supply lead; 9. connecting a spring sleeve; 10. a connecting spring; 11. a second packing sleeve; 12. connecting columns; 13. a thread; 14. a third packing sleeve; 15. a chute; 16. connecting a bearing; 17. a clamping sleeve; 18. a slider; 19. a fourth packing sleeve; 20. a connecting rod; 21. an inner clamping plate; 22. fixing the spring; 23. fixing the spring sleeve; 24. an outer clamping plate; 25. fixing friction lines; 26. a turntable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 7, the present invention provides a technical solution: a packer comprises an inflator 1, three plugging airbags 2 are fixedly sleeved outside the inflator 1, filling friction grains 3 are fixedly installed on the outer side of each plugging airbag 2, an inflation inlet 4 is fixedly installed on the outer side of the inflator 1, the inner side of the inflation inlet 4 extends to the inner portion of the inflator 1, the outer side of the inflation inlet 4 is located in the inner cavity of each plugging airbag 2, the plugging airbags 2 and the inflation inlets 4 are communicated with the inner cavity of the inflator 1, the plugging airbags 2 and the inflation inlets 4 are communicated with the inflator 1 through the design of the inflation inlets 4, when the packer is used, gas in the inflator 1 can be conveniently blown into the plugging airbags 2 through the inflation inlets 4, the plugging airbags 2 are in a filling state and are attached to the inner wall of an oil well, the oil well is sealed, a device is convenient to seal, meanwhile, the packer is simple and convenient to operate, is simple in structure and easy to operate, a gas pipe 5 is fixedly installed above the inflator 1, the bottom end of the air pipe 5 extends to the inside of the inflator 1, the top end of the air pipe 5 extends upwards to the outside of the oil well, the top end of the air pipe 5 is fixedly connected with the air pump, the air pipe 5 plays a role in communicating the inside of the inflator 1 with the outside, air can be conveniently injected into the inside of the inflator 1 through the matching of the air pump and the air pipe 5, the use of the device is convenient, when the device is used, after the top end of the air pipe 5 is connected with the air pump, the air pump is started, the air pipe 5 can blow air into the inside of the inflator 1, after the use, the air pump is controlled to suck air, the air in the inflator 1 and the air in the plugging air bag 2 is outwards pumped out through the air pipe 5, the plugging air bag 2 is not filled with the inner wall of the oil well any more, the expansion or contraction of the plugging air bag 2 is conveniently controlled, the use of the device is convenient, a, a power supply lead 8 is fixedly arranged above the servo motor 7, a connecting spring sleeve 9 is fixedly arranged at the bottom end of an output shaft of the servo motor 7, a connecting spring 10 is fixedly sleeved in the connecting spring sleeve 9, the connecting spring 10 is arranged in the connecting spring sleeve 9, and the top end and the bottom end of the connecting spring 10 are fixedly connected with the top wall and the bottom wall of an inner cavity of the connecting spring sleeve 9, when the device works, the servo motor 7 cannot directly drive the connecting spring 10 to rotate, the damage to the connecting spring 10 can be effectively reduced by driving the connecting spring sleeve 9 to rotate and further driving the connecting spring 10 to rotate, the service life of the device can be effectively prolonged, a connecting column 12 is fixedly arranged at the bottom end of the first packing sleeve 6, a thread 13 is arranged on the inner side of the connecting column 12, a rotary table 26 is fixedly connected with the bottom end of the connecting spring sleeve 9, a thread 13 is arranged on the outer side of the rotary table 26, the, the diameter value of the connecting column 12 is smaller than that of the turntable 26, so that the servo motor 7 is started, the output shaft of the servo motor 7 can drive the connecting spring sleeve 9 to rotate, the turntable 26 can be driven to rotate through the rotation of the connecting spring sleeve 9, the turntable 26 can push the connecting column 12 to move downwards under the action of the threads 13 in the rotating process, the connecting column 12 can push the clamping sleeve 17 to move downwards through the action of the connecting bearing 16, the movement of the clamping sleeve 17 is convenient to control, the practicability of the device is improved, the connecting column 12 is fixedly arranged below the turntable 26, the outer side of the bottom end of the connecting column 12 is fixedly sleeved with the connecting bearing 16, the outer side of the connecting bearing 16 is fixedly sleeved with the clamping sleeve 17, four evenly distributed sliders 18 are fixedly arranged on the outer side of the clamping sleeve 17, a sliding groove 15 is fixedly arranged at a position, close to the bottom, of the inner wall of the third sealing sleeve 14, a sliding groove 15, the sliding chute 15 in the third packing sleeve 14 and the sliding chute 15 in the fourth packing sleeve 19 are parallel to each other from top to bottom, the sliding chute 15 and the sliding block 18 are matched with each other, when in use, the clamping sleeve 17 can vertically move downwards under the limitation of the sliding block 18 and the sliding chute 15, the design of the sliding block 18 and the sliding chute 15 is convenient for the movement of the photographic paper clamping sleeve 17, the movement track of the clamping sleeve 17 is prevented from being indefinite, the clamping sleeve 17 can not be inserted into the inner clamping plate 21, the normal operation of the device is influenced, the practicability of the device is improved, the fourth packing sleeve 19 is fixedly installed at the bottom end of the third packing sleeve 14, the first packing sleeve 6 and the second packing sleeve 11 are parallel to the third packing sleeve 14 and the fourth packing sleeve 19 from top to bottom, the diameter values are the same, the connecting rod 20 is movably sleeved in the fourth packing sleeve 19, the inner clamping plate 21 is fixedly sleeved on the inner side of the connecting rod 20, the outer clamping plate 24 is fixedly installed on the outer side of the connecting rod 20, the outer clamping plate 24 and the inner clamping plate 21 are parallel to each other front and back, the fourth packer sleeve 19, the outer clamping plate 24 and the inner clamping plate 21 have the same height value, the four outer clamping plates 24 are uniformly distributed on the outer side of the fourth packer sleeve 19, the clamping sleeve 17 moves to the inner parts of the four inner clamping plates 21, then the inner clamping plate 21 moves towards the outer side of the fourth packer sleeve 19, meanwhile, the inner clamping plate 21 pushes the connecting rod 20 and the outer clamping plate 24 to move towards the inner part of the well wall, so that the outer clamping plate 24 is attached to the well wall, the device is fixed with the inner wall of the oil well through the fixed friction grains 25, the device does not shake any more, the device is conveniently fixed, the device is prevented from moving in the oil well, the plugging air bag 2 is prevented from being scratched, the normal use of the device is influenced, the fixed friction grains 25 are fixedly arranged on the outer side of the outer clamping plate 24, the fixed spring 22 is fixedly arranged on the outer side of the fourth packer sleeve 19, the fixed spring sleeve 23 is fixedly arranged on the outer side of the fourth, the fixed spring housing 23 is located inside the fixed spring 22, the rear end sides of the fixed spring housing 23 and the fixed spring 22 are fixedly connected with the inner side of the outer clamping plate 24, when the device is used, the first packing sleeve 6 is controlled to rotate reversely, the clamping sleeve 17 is pulled out from the insides of the four inner clamping plates 21, the outer clamping plate 24 is separated from the inner wall of an oil well under the action of the fixed spring 22 and the fixed spring housing 23, the outer clamping plate 24 is conveniently reset, and the device is convenient to use.

In conclusion, when the packer is used, by putting the lower part of the packer into the inside of an oil well, after a proper position is prevented, the power supply wire 8 is supplied to enable the servo motor 7 to be started, the output shaft of the servo motor 7 can drive the connecting spring sleeve 9 to rotate, the rotary disc 26 can be driven to rotate through the rotation of the connecting spring sleeve 9, the rotary disc 26 can push the connecting column 12 to move downwards under the action of the thread 13 in the rotating process, the connecting column 12 can push the clamping sleeve 17 to move downwards through the action of the connecting bearing 16, meanwhile, the connecting spring 10 can gradually change from a compressed state to a normal state in the downward movement process of the rotary disc 26, the clamping sleeve 17 can vertically move downwards under the limitation of the sliding block 18 and the sliding groove 15, the clamping sleeve 17 can move to the inside of the four inner clamping plates 21, and then the inner clamping plates 21 can move to the outer side of the fourth spacer 19, meanwhile, the inner clamping plate 21 can push the connecting rod 20 and the outer clamping plate 24 to move towards the inside of the well wall, so that the outer clamping plate 24 is attached to the well wall, the device is fixed to the inner wall of the oil well through the fixed friction grains 25 and is not shaken any more, then after the top end of the air pipe 5 is connected with the air pump, the air pump is started, the air pipe 5 can blow air into the air cylinder 1, then the air in the air cylinder 1 can blow air into the plugging air bag 2 through the inflation inlet 4, so that the plugging air bag 2 is in a filling state and is attached to the inner wall of the oil well, the oil well is sealed, after the oil well is used, the air pump is controlled, the air in the air cylinder 1 and the plugging air bag 2 is pumped outwards through the air pipe 5, so that the plugging air bag 2 is not filled with the inner wall of the oil well, meanwhile, the first packer sleeve 6 is controlled to rotate reversely, so that the clamping sleeve 17 is pumped out from the insides of the four inner clamping plates 21, and the outer clamping plate 24 is separated from, and pulling the device out of the oil well.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A packer comprising a cylinder (1), characterized in that: the inflator is characterized in that three plugging air bags (2) are fixedly sleeved outside the inflator (1), the outer side of each plugging air bag (2) is fixedly provided with a filling friction line (3), the outer side of the inflator (1) is fixedly provided with an inflation inlet (4), the upper side of the inflator (1) is fixedly provided with an air pipe (5), the lower side of the inflator (1) is fixedly provided with a first sealing sleeve (6), the top wall of the inner cavity of the first sealing sleeve (6) is fixedly provided with a servo motor (7), the upper side of the servo motor (7) is fixedly provided with a power supply lead (8), the bottom end of an output shaft of the servo motor (7) is fixedly provided with a connecting spring sleeve (9), the inner part of the connecting spring sleeve (9) is fixedly sleeved with a connecting spring (10), the bottom end of the first sealing sleeve (6) is fixedly provided with a connecting column (12), and the inner side of the connecting column (12, the bottom end of the connecting spring sleeve (9) is fixedly connected with a turntable (26), a connecting column (12) is fixedly mounted below the turntable (26), a connecting bearing (16) is fixedly sleeved outside the bottom end of the connecting column (12), a clamping sleeve (17) is fixedly sleeved outside the connecting bearing (16), four evenly distributed sliders (18) are fixedly mounted outside the clamping sleeve (17), a sliding chute (15) is fixedly arranged at the position, close to the bottom, of the inner wall of a third packing sleeve (14), a fourth packing sleeve (19) is fixedly mounted at the bottom end of the third packing sleeve (14), a connecting rod (20) is movably sleeved inside the fourth packing sleeve (19), an inner clamping plate (21) is fixedly sleeved inside the connecting rod (20), an outer clamping plate (24) is fixedly mounted outside the connecting rod (20), and fixed friction grains (25) are fixedly arranged outside the outer clamping plate (24), the outer side of the fourth packing sleeve (19) is fixedly provided with a fixed spring (22), and the outer side of the fourth packing sleeve (19) is fixedly provided with a fixed spring sleeve (23).

2. A packer as claimed in claim 1, wherein: the inner side of the inflation inlet (4) extends to the inner part of the inflator (1), the outer side of the inflation inlet (4) is located in the inner cavity of the plugging air bag (2), and the plugging air bag (2) and the inflation inlet (4) are communicated with the inner cavity of the inflator (1).

3. A packer as claimed in claim 1, wherein: the bottom of trachea (5) extends to the inside of inflator (1), the top of trachea (5) upwards extends to the outside of oil well, the top and the air pump fixed connection of trachea (5).

4. A packer as claimed in claim 1, wherein: the outside of carousel (26) is seted up screw thread (13), the diameter value of carousel (26) is the same with the internal diameter value of second packing sleeve (11), the diameter value of spliced pole (12) is less than the diameter value of carousel (26).

5. A packer as claimed in claim 1, wherein: the top wall of the inner cavity of the fourth packing sleeve (19) is provided with a sliding groove (15), the sliding groove (15) inside the third packing sleeve (14) and the sliding groove (15) inside the fourth packing sleeve (19) are parallel to each other from top to bottom, and the sliding groove (15) and the sliding block (18) are matched with each other.

6. A packer as claimed in claim 1, wherein: the fixed spring sleeve (23) is positioned in the fixed spring (22), and the rear end sides of the fixed spring sleeve (23) and the fixed spring (22) are fixedly connected with the inner side of the outer clamping plate (24).

7. A packer as claimed in claim 1, wherein: the outer clamping plate (24) and the inner clamping plate (21) are parallel to each other front and back, the fourth packing sleeve (19) and the outer clamping plate (24) have the same height value as the inner clamping plate (21), and the outer clamping plate (24) is uniformly distributed on the outer side of the fourth packing sleeve (19).

8. A packer as claimed in claim 1, wherein: the first packing sleeve (6) and the second packing sleeve (11) are vertically parallel to the third packing sleeve (14) and the fourth packing sleeve (19), and the diameter values of the first packing sleeve and the second packing sleeve are the same.