CN211174045U - Packer applied to electric pump well completion - Google Patents
Packer applied to electric pump well completion Download PDFInfo
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- CN211174045U CN211174045U CN201922172363.4U CN201922172363U CN211174045U CN 211174045 U CN211174045 U CN 211174045U CN 201922172363 U CN201922172363 U CN 201922172363U CN 211174045 U CN211174045 U CN 211174045U
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- packer
- rubber sleeve
- slip
- main body
- well completion
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Abstract
The utility model belongs to the technical field of the packer, concretely relates to be applied to packer of charge pump well completion, this packer includes the packer main part and sets up slips subassembly and packing element subassembly in the packer main part, the packer main part is equipped with two at least main inner chamber passageways, the packer still includes anchoring device and hydraulic anchor device for the packer bears higher pressure, improves oil recovery efficiency, increases economic benefits.
Description
Technical Field
The utility model belongs to the technical field of the packer, concretely relates to be applied to packer of charge pump well completion.
Background
In the oil extraction engineering, a common packer is used for layering, an oil extraction channel is designed on the packer, and when setting, a piston sleeve ascends and the oil extraction channel is opened; after the setting, the upper layer pressure acts on the balance piston to push the rubber cylinder upwards, so that the deblocking pin is prevented from shearing force; when deblocking, the deblocking pin is cut off by the friction force of the rubber sleeve and the sleeve, the piston sleeve moves downwards to close the oil extraction channel, therefore, the packer can reduce the water plugging construction process of the oil well packer, and can conveniently realize the advantages of no-killing and no-blowout operation, long service life and the like.
However, the existing packer has the following outstanding problems: firstly, the pressure cannot be too high; and secondly, only a single oil production channel is usually designed, so that the economic benefit is not high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be applied to packer of charge pump well completion sets up anchoring device and hydraulic anchor device for the packer bears higher pressure.
An object of the utility model is to provide a be applied to packer of charge pump well completion, the design has a plurality of oil recovery passageways, improves oil recovery efficiency, increases economic benefits.
An object of the utility model is to provide a be applied to packer of charge pump well completion, increase its passageway internal diameter, increase the oil production volume, improve economic benefits.
An object of the utility model is to provide a be applied to packer of charge pump well completion, be equipped with independent exhaust passage, in time release inside gas.
In order to achieve the above object, the main technical solution of the present invention is to provide a packer applied to electric pump well completion, the packer comprising a packer main body, and a slip assembly and a packing element assembly disposed on the packer main body, wherein the packer main body is provided with at least one main inner cavity channel, the packer further comprises an anchoring device, a hydraulic anchor device and a pipeline channel;
the anchoring device is arranged on the packer main body;
the hydraulic anchor device comprises an anchor fluke, a spring and a pressing plate, wherein the outer surface of the anchor fluke is a curved surface and is consistent with the curvature of the curved surface of the packer main body, the pressing plate is arranged on the inner surface of the anchor fluke, the shape of the pressing plate is consistent with that of the packer main body and is positioned on the same cambered surface, and the spring is supported in a cavity formed by the pressing plate and the surface of the packer main body;
the pipeline passages comprise an incompletely sealable pipeline passage and a completely sealable pipeline passage, and the incompletely sealable pipeline passage and the completely sealable pipeline passage are both arranged in the packer body and are arranged in parallel with the axis of the packer body.
In some examples, the glue barrel assembly comprises a glue barrel upper baffle ring, a glue barrel, an intermediate glue barrel, a spacer ring, a glue barrel sleeve and a glue barrel lower baffle ring, wherein the spacer ring is arranged between the glue barrel and the intermediate glue barrel, the glue barrel sleeve wraps the glue barrel, and the glue barrel upper baffle ring and the glue barrel lower baffle ring are respectively arranged at two ends of the glue barrel sleeve.
In some examples, the slips subassembly includes cone, slip cover, navigation key, slips, leaf spring, cone, deblocking shear pin down and prevents changeing the screw, the slips sets up in the packer main part, the leaf spring sets up on the slips, go up the cone and set up respectively at the both ends of slips down, go up the one end of cone with keep off the ring joint under the packing element, the bottom of going up the cone other end is equipped with the navigation key, the outside cover of slips and leaf spring is established the slip cover, the cone is equipped with deblocking shear pin and prevents changeing the screw down.
In some examples, the packer body is provided with an exhaust valve channel, and an exhaust valve is disposed within the exhaust valve channel.
In some examples, the packer is further provided with a pipeline passage and a cable crossing passage.
In some examples, the packer body is provided with a pressure transfer bore.
Drawings
Figure 1 is a schematic structural view of an embodiment of the present invention,
figure 2 is a side view of the embodiment of figure 1,
figure 3 is a detailed view of the upper chamber portion of the embodiment of figure 1,
figure 4 is a detailed view of the lower chamber portion of the embodiment of figure 1,
figure 5 is a cross-sectional view of the embodiment of figure 1,
in the figure: the anti-rotation anchor device comprises a central tube 1, an inner hexagon screw 2, an anchor claw 3, an outer spring 4, a middle spring 5, an inner spring 6, a pressure plate 7, a 0-shaped ring 8, a locking screw 9, a support ring 10, a first pipeline channel 11, a second pipeline channel 12, a piston 13, a cylinder sleeve 14, a thrust sleeve 15, a seat seal shear pin 16, a positioning key 17, a spring 18, a spring gasket 19, a locking ring sheet 20, a rubber sleeve upper retaining ring 21, a rubber sleeve 22, an intermediate rubber sleeve 23, a spacer ring 24, a rubber sleeve 25, a rubber sleeve lower retaining ring 26, an upper cone 27, a slip sleeve 28, a slip 30, a plate spring 31, a lower cone 32, a deblocking shear pin 33, an anti-rotation screw 34, a gauge ring 35, a key 36, a third pipeline channel 38, a lower joint 39, a lower short section 40, an exhaust valve channel 41, a cable passing channel 42, a pressure transfer hole 43 and a main inner cavity channel 44.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
As shown in fig. 1 to 3, an embodiment of the present invention provides a packer for electric pump well completion, the packer includes a packer main body, the packer main body is provided with at least one main inner cavity channel 44, two ports of the main inner cavity channel 44 are respectively provided with connecting threads for connecting with an oil pipe, compared with the existing packer, the present embodiment has a larger inner diameter of the main inner cavity channel 44 than the existing packer inner cavity, so as to increase the oil production and improve the economic benefit, the packer further includes an anchoring device, the anchoring device is configured to enable the packer to bear higher pressure, wherein the anchoring device includes a piston 13, a cylinder sleeve 14, a thrust sleeve 15, a seat seal shear pin 16, a positioning key 17, a spring 18, a spring gasket 19, a lock ring 20, which are sequentially combined and sleeved on the packer main body through a 0-shaped ring 8, a screw 9, and a support ring 10, in addition, the packer still includes hydraulic anchor device, hydraulic anchor device's setting is in order to prevent that the packer from arousing the packer upwards to slide because of cavity annular pressure increases in the cavity of resorption for this packer can be used in the pit of higher pressure, wherein hydraulic anchor device includes fluke 3, spring and clamp plate 7, wherein the spring includes inner spring 6, well spring 5, outer spring 4, the surface of fluke 3 is the curved surface, and unanimous with the curved surface curvature of packer main part, the internal surface of fluke 3 is equipped with clamp plate 7, clamp plate 7 shape is unanimous with the shape in the packer main part, and is located same cambered surface, it has the spring to support in the cavity that clamp plate 7 and packer main part surface formed. The packer main body is provided with a rubber barrel assembly, the rubber barrel assembly comprises a rubber barrel upper retaining ring 21, a rubber barrel 22, a middle rubber barrel 23, a spacer ring 24, a rubber barrel sleeve 25 and a rubber barrel lower retaining ring 26, the spacer ring is arranged between the rubber barrel and the middle rubber barrel, the rubber barrel sleeve wraps the rubber barrel, the rubber barrel upper retaining ring 21 and the rubber barrel lower retaining ring 26 are respectively arranged at two ends of the rubber barrel sleeve, the packer main body is further provided with a slip assembly, the slip assembly comprises an upper cone 27, a slip sleeve 28, a positioning key 17, a slip 30, a plate spring 31, a lower cone 32, a deblocking shear pin 33 and an anti-rotation screw 34, the slip 30 is arranged on the packer main body, the plate spring 31 is arranged on the slip 30, the upper cone 27 and the lower cone 32 are respectively arranged at two ends of the slip 30, one end of the upper cone 27 is clamped with the rubber barrel lower retaining ring, the bottom of the other end of the upper cone 27 is provided with the positioning key 17, slip 30 and leaf spring 31's outside cover establish slip cover 28, lower cone 32 is equipped with deblocking shear pin 33 and prevents changeing screw 34, and in addition, gauge ring 35, key 36 all set up on the packer main part.
In addition, the packer main part is equipped with discharge valve passageway 41, be equipped with discharge valve in the discharge valve passageway 41, when cavity annular pressure surpassed preset pressure value in the cavity of resorption, gas will be discharged through discharge valve to prevent that too big and damage this packer, discharge valve self-closing after upper and lower cavity pressure balance.
In addition, in some embodiments, the packer is further provided with a line passage and a cable-traversing passage 42, as the name implies, a line can be passed through the packer through the line passage, a cable can be passed through the packer through the cable-traversing passage 42, and both the line passage and the cable-traversing passage 42 are not in communication with each other.
The line channel also includes a partially sealable line channel and a fully sealable line channel.
The incompletely sealable pipeline passage means that when a complete capillary pipeline (hundreds of meters or thousands of meters) passes through the first pipeline passage 11 or the second pipeline passage 12, the capillary pipeline is fixed and sealed at the NPT sealing pipe thread position on the upper part of the packer by a pipeline joint, and the annular pressure of the upper cavity and the lower cavity cannot be communicated after the packer seat is sealed (the joint between the central pipe 1 and the lower joint 39 of the pipeline has no sealing structure, and the pressure and the liquid can be freely communicated, so that the pipeline is complete, and the middle part cannot be disconnected).
The completely sealable pipeline channel refers to a third pipeline channel 38 which penetrates from the upper part of the packer when two capillary pipelines respectively penetrate from two ends of the packer, the capillary pipelines are fixed and sealed at the NPT sealing pipe thread part at the upper part of the packer through pipeline joints, but because the capillary pipelines are disconnected, the pressure of a lower cavity or the pressure in the capillary pipelines can be leaked through the joint part between the central pipe 1 and the lower joint 39, and therefore, the capillary pipelines are fixed and sealed through installing connecting pipes and pipeline joints at the NPT sealing pipe thread part at the tail part of the central pipe 1, and the pressure of the upper cavity and the pressure of the lower cavity of the packer can not be communicated.
The fully sealable pipeline channel has the advantages that a whole long capillary pipeline does not need to be passed through the packer in a time-consuming and labor-consuming manner any more, only two pipelines need to be respectively passed through two ends of the packer, and then the two ends of the upper part and the lower part of the packer are fastened and sealed by pipeline joints, so that the operation is simple, the time is saved (a whole pipeline can be installed when needed), and the number of channels can be increased according to the requirements of customers.
If the pipeline channel does not need to pass through the capillary pipeline, a plug can be installed on the NPT oil pipe thread on the upper part of the packer, and the function diversification of the product is realized.
The packer body is provided with a pressure transfer bore 43.
The working principle of the packer is as follows:
s1: the upper connecting thread of the packer is connected with an oil pipe, and the lower short section 40 connecting thread is connected with the oil pipe and other tools;
s2: lowering the packer with the connected oil pipe to the preset depth of the oil well, and plugging the lower oil pipe by using a special tool;
s3: setting of the packer: 14-16MPa is pressed from an inner cavity of the upper part of the packer, pressure acts on the piston 13 through the pressure transfer hole 43, the piston 13 cuts the part setting shear pin 16 when in operation, and the anchor device, the hydraulic anchor device, the rubber cylinder component and the slip component all move downwards under the action of the pressure except for the positioning key, so that the following steps are completed:
s3.1: all parts move downwards, and the slip props open to clamp the casing pipe, so that the packer is prevented from moving in the working process;
s3.2: the rubber cylinder 22 and the middle rubber cylinder 23 are spread to divide the sleeve into an upper cavity and a lower cavity;
s4: after all parts complete actions according to design requirements, continuously pressurizing to 20MPa, and ensuring the positioning and effective separation of the upper slips, the lower slips, the rubber cylinder and the casing;
s5: the pressure in the inner cavity of the packer is released to be zero, and at the moment, all parts moving upwards are locked by the lock spring, and the lock spring is provided with reverse sawtooth threads, so that the parts moving upwards cannot return due to the disappearance of the pressure;
s6: after the seat sealing is finished, taking out the lower oil pipe sealing by using a special tool, carrying out large pressure on the annular space of the upper cavity of the packer, carrying out tightness verification test on the rubber pipe, and entering a production stage after the rubber pipe is verified to be qualified;
s7: the packer needs to be taken out after the production of the oil well is finished or for other reasons, and the following steps are completed:
s7.1: and lifting the pipe column, enabling the central pipe 1 to run upwards, shearing the unsealing shear pin, retracting the slips and the rubber sleeve simultaneously, and unsealing the packer.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by the teaching of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as the present invention, fall within the protection scope of the present invention.
Claims (6)
1. A packer applied to electric pump well completion comprises a packer main body, a slip assembly and a rubber sleeve assembly, wherein the slip assembly and the rubber sleeve assembly are arranged on the packer main body;
the anchoring device is arranged on the packer main body;
the hydraulic anchor device comprises an anchor fluke, a spring and a pressing plate, wherein the outer surface of the anchor fluke is a curved surface and is consistent with the curvature of the curved surface of the packer main body, the pressing plate is arranged on the inner surface of the anchor fluke, the shape of the pressing plate is consistent with that of the packer main body and is positioned on the same cambered surface, and the spring is supported in a cavity formed by the pressing plate and the surface of the packer main body;
the pipeline passages comprise an incompletely sealable pipeline passage and a completely sealable pipeline passage, and the incompletely sealable pipeline passage and the completely sealable pipeline passage are both arranged in the packer body and are arranged in parallel with the axis of the packer body.
2. The packer applied to electric pump well completion according to claim 1, wherein the rubber sleeve component comprises a rubber sleeve upper baffle ring, a rubber sleeve, an intermediate rubber sleeve, a spacer ring, a rubber sleeve and a rubber sleeve lower baffle ring, the spacer ring is arranged between the rubber sleeve and the intermediate rubber sleeve, the rubber sleeve covers the rubber sleeve, and the rubber sleeve upper baffle ring and the rubber sleeve lower baffle ring are respectively arranged at two ends of the rubber sleeve.
3. The packer applied to electric pump well completion according to claim 2, wherein the slip assembly comprises an upper cone, a slip sleeve, a positioning key, a slip, a plate spring, a lower cone, a deblocking shear pin and an anti-rotation screw, the slip is arranged on the packer main body, the plate spring is arranged on the slip, the upper cone and the lower cone are respectively arranged at two ends of the slip, one end of the upper cone is clamped with the lower retaining ring of the rubber sleeve, the positioning key is arranged at the bottom of the other end of the upper cone, the slip sleeve is sleeved outside the slip and the plate spring, and the lower cone is provided with the deblocking shear pin and the anti-rotation screw.
4. The packer applied to electric pump well completion according to claim 3, wherein the packer body is provided with an exhaust valve channel, an exhaust valve is arranged in the exhaust valve channel, and an exhaust valve is arranged at the opening of the exhaust valve channel.
5. A packer for use in electrically pumped well completion according to claim 3, characterised in that the packer is further provided with a cable run-through channel.
6. A packer for use in electrically pumped well completion according to claim 3, wherein the packer body is provided with a pressure transfer bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922172363.4U CN211174045U (en) | 2019-12-06 | 2019-12-06 | Packer applied to electric pump well completion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922172363.4U CN211174045U (en) | 2019-12-06 | 2019-12-06 | Packer applied to electric pump well completion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211174045U true CN211174045U (en) | 2020-08-04 |
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ID=71806675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922172363.4U Active CN211174045U (en) | 2019-12-06 | 2019-12-06 | Packer applied to electric pump well completion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211174045U (en) |
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2019
- 2019-12-06 CN CN201922172363.4U patent/CN211174045U/en active Active
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