CN211287611U - Permanent setting staged fracturing packer - Google Patents
Permanent setting staged fracturing packer Download PDFInfo
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- CN211287611U CN211287611U CN201920307620.8U CN201920307620U CN211287611U CN 211287611 U CN211287611 U CN 211287611U CN 201920307620 U CN201920307620 U CN 201920307620U CN 211287611 U CN211287611 U CN 211287611U
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Abstract
The utility model relates to the technical field of oil exploitation auxiliary devices, in particular to a permanent setting segmented fracturing packer, which improves the smoothness of a plurality of groups of slips when moving; the packer comprises a packer body, wherein the packer body comprises an upper joint, a connector, a valve seat, a spring seat, an anchoring mechanism, a rubber cylinder assembly, a central pipe, a floating head, a baffle ring, a centering mechanism and a lower joint, the anchoring mechanism comprises a cone, a plurality of slips and a mounting ring, a plurality of groups of sliding grooves capable of diffusing outwards are formed in the side wall of the top of the mounting ring, the cone is in contact with the plurality of groups of slips, and the centering mechanism comprises a plurality of groups of trapezoidal blocks; the slip is characterized by also comprising a plurality of groups of first balls, a plurality of groups of second balls and a plurality of groups of third balls, wherein a first moving groove, a second moving groove and a plurality of groups of third moving grooves are respectively arranged in the central area of the left side wall, the central area of the right side wall and the bottom side wall of each group of slips; still include multiunit dwang, multiunit rotary rod and multiunit roller bearing, all be provided with the rubber ring on the multiunit roller bearing lateral wall.
Description
Technical Field
The utility model relates to a technical field of oil development auxiliary device especially relates to a permanent seat seals staged fracturing packer.
Background
As is well known, a permanently set staged fracturing packer is a downhole tool for protecting casing, which is widely used in the field of oil production; the existing permanent setting staged fracturing packer comprises a packer body, wherein the packer body comprises an upper joint, a connector, a valve seat, a spring seat, an anchoring mechanism, a rubber cylinder assembly, a central tube, a floating head, a baffle ring, a centering mechanism and a lower joint, the upper joint, the connector, the valve seat, the spring seat, the anchoring mechanism, the rubber cylinder assembly, the floating head, the baffle ring, the centering mechanism and the lower joint are sequentially arranged on the central tube from top to bottom, the anchoring mechanism comprises a cone, a plurality of groups of slips and a mounting ring, the top side wall of the mounting ring is provided with a plurality of groups of sliding grooves capable of diffusing outwards, the bottom ends of the plurality of groups of slips are respectively inserted into the plurality of groups of sliding grooves, the cone is in contact with the plurality of groups of; when the existing permanent setting staged fracturing packer is used, the packer body is dropped to a designated position, a plurality of groups of trapezoidal blocks limit the moving track of the packer body in the dropping process, a cone moves downwards to enable a plurality of groups of slips to move outwards along a plurality of groups of sliding grooves respectively, the plurality of groups of sliding grooves and the plurality of groups of slips are in a T shape, and the plurality of groups of slips are clamped on a sleeve to realize setting; the existing permanent setting staged fracturing packer is found to have poor fluency, easy blockage and high use limitation when a plurality of slips move; the righting mechanism is seriously worn and has lower use reliability.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a slip device which can improve the smoothness of multiple slips when moving and reduce the use limitation; reduce righting mechanism wearing and tearing, improve the permanent setting staged fracturing packer who uses the reliability.
The utility model discloses a permanent setting staged fracturing packer, including the packer body, the packer body includes top connection, connector, valve seat, spring holder, anchoring mechanism, packing element assembly, center tube, floating head, fender ring, righting mechanism and lower clutch, top connection, connector, valve seat, spring holder, anchoring mechanism, packing element assembly, floating head, fender ring, righting mechanism and lower clutch are installed on the center tube from last to last in proper order down, anchoring mechanism includes centrum, multiunit slips and collar, collar top lateral wall is provided with the multiunit sliding tray that can spread outward, multiunit slips bottom inserts multiunit sliding tray inside respectively, the centrum contacts with multiunit slips, righting mechanism includes multiunit trapezoidal piece; the slip is characterized by further comprising a plurality of groups of first balls, a plurality of groups of second balls and a plurality of groups of third balls, wherein a first moving groove, a second moving groove and a plurality of groups of third moving grooves are respectively formed in the central area of the left side wall, the central area of the right side wall and the bottom side wall of each group of the slip, most areas of the plurality of groups of first balls are positioned in the first moving grooves, most areas of the plurality of groups of second balls are positioned in the second moving grooves, and most areas of the plurality of groups of third balls are respectively positioned in the plurality of groups of third moving grooves; still include multiunit dwang, multiunit rotary rod and multiunit roller bearing, all be provided with three groups on the multiunit trapezoidal piece lateral wall and rotate the groove, every group it is provided with first swivelling chute and second swivelling chute respectively to rotate groove left side wall and interior right side wall, every group dwang and every group rotary rod one end inserts first swivelling chute and second swivelling chute inside respectively, every group dwang and every group the rotary rod other end respectively with every group lateral wall and back lateral wall central zone connect before the roller bearing to all be provided with the rubber ring on the multiunit roller bearing lateral wall.
The utility model discloses a permanent seat seals staged fracturing packer, first swivelling chute and second swivelling chute department are provided with two sets of ball bearing respectively, every group dwang and every group rotary rod one end insert respectively inside and connect with two sets of ball bearing key-types respectively of two sets of ball bearing.
The utility model discloses a permanent seat seals staged fracturing packer still includes first limiting plate, and first limiting plate is provided with the first spacing hole of multiunit, the first ball of multiunit passes the first spacing hole of multiunit respectively.
The utility model discloses a permanent seat seals staged fracturing packer still includes the second limiting plate, and the second limiting plate is provided with the spacing hole of multiunit second, multiunit second ball passes the spacing hole of multiunit second respectively.
The utility model discloses a permanent seat seals staged fracturing packer still includes multiunit third limiting plate, every group all be provided with the spacing hole of multiunit third on the third limiting plate, multiunit third ball passes the spacing hole of multiunit third respectively.
The utility model discloses a permanently sit and seal segmentation fracturing packer, multiunit third removal groove are two sets of.
Compared with the prior art, the beneficial effects of the utility model are that: the packer body is dropped to a designated position, the centrum moves downwards, so that a plurality of groups of slips respectively move outwards along a plurality of groups of sliding grooves, and the plurality of groups of sliding grooves and the plurality of groups of slips are all in a T shape, the plurality of groups of slips are clamped on the sleeve to realize seat sealing, most areas of the plurality of groups of first balls are all positioned in the first moving grooves, most areas of the plurality of groups of second balls are all positioned in the second moving grooves, most areas of the plurality of groups of third balls are respectively positioned in the plurality of groups of third moving grooves, therefore, a plurality of groups of first balls, a plurality of groups of second balls and a plurality of groups of third balls are difficult to separate from the slips, and the plurality of groups of first balls, the plurality of groups of second balls and the plurality of groups of third balls are tangent with the mounting ring, the sliding friction is converted into rolling friction by the multiple groups of first balls, the multiple groups of second balls and the multiple groups of third balls, so that the friction force is reduced, the smoothness of the multiple groups of slips during movement is improved, and the use limitation is reduced; the packer body descends in-process, and rubber ring and the contact of well drilling inner wall on the multiunit roller bearing, under the frictional force effect of rubber ring and well drilling inner wall, multiunit dwang, multiunit rotary rod, multiunit roller bearing and multiunit rubber ring all take place to rotate, change sliding friction into rolling friction, reduce righting mechanism wearing and tearing, improve and use the reliability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a perspective view of a cone, a set of slips, and a collar;
FIG. 4 is a schematic illustration of the connection of a first ball, a second ball, a third ball and a set of slips;
fig. 5 is a schematic left side view of the connection of the first ball and the first stopper plate;
fig. 6 is a schematic left side view of the connection of the second ball and the second stopper plate;
fig. 7 is a schematic left side view of the connection of the third ball and the third stopper plate;
FIG. 8 is a schematic left side view of the attachment of the roller and the rubber ring;
in the drawings, the reference numbers: 1. an upper joint; 2. a connector; 3. a valve seat; 4. a spring seat; 5. A rubber cylinder assembly; 6. a central tube; 7. a floating head; 8. a baffle ring; 9. a lower joint; 10. a vertebral body; 11. slips; 12. a mounting ring; 13. a trapezoidal block; 14. a first ball; 15. a second ball; 16. a third ball; 17. rotating the rod; 18. rotating the rod; 19. a roller; 20. a rubber ring; 21. A ball bearing; 22. a first limit plate; 23. a second limiting plate; 24. a third limiting plate; 25. An anchoring mechanism.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1 to 8, the utility model discloses a permanent setting staged fracturing packer, including the packer body, the packer body includes top connection 1, connector 2, valve seat 3, spring holder 4, anchoring mechanism 25, packing element assembly 5, center tube 6, floating head 7, retaining ring 8, righting mechanism and lower clutch 9, top connection 1, connector 2, valve seat 3, spring holder 4, anchoring mechanism 25, packing element assembly 5, floating head 7, retaining ring 8, righting mechanism and lower clutch 9 are installed on center tube 6 from last to bottom in proper order, anchoring mechanism 25 includes centrum 10, multiunit slips 11 and collar 12, collar 12 top side wall is provided with the multiunit sliding tray that can spread outward, multiunit slips 11 bottom inserts inside the multiunit sliding tray respectively, centrum 10 contacts with multiunit slips 11, righting mechanism includes multiunit trapezoidal piece 13; the slip is characterized by further comprising multiple groups of first balls 14, multiple groups of second balls 15 and multiple groups of third balls 16, wherein a first moving groove, a second moving groove and multiple groups of third moving grooves are respectively formed in the central area of the left side wall, the central area of the right side wall and the bottom side wall of each group of slips 11, the large areas of the multiple groups of first balls 14 are all located in the first moving grooves, the large areas of the multiple groups of second balls 15 are all located in the second moving grooves, and the large areas of the multiple groups of third balls 16 are respectively located in the multiple groups of third moving grooves; the outer side wall of each group of trapezoidal blocks 13 is provided with three groups of rotating grooves, the left side wall and the inner right side wall of each group of rotating grooves are respectively provided with a first rotating groove and a second rotating groove, one end of each group of rotating grooves 17 and one end of each group of rotating rods 18 are respectively inserted into the first rotating grooves and the second rotating grooves, the other end of each group of rotating grooves 17 and the other end of each group of rotating rods 18 are respectively connected with the central areas of the front side wall and the rear side wall of each group of rollers 19, and the outer side wall of each group of rollers 19 is provided with a rubber ring 20; the packer body is dropped to a designated position, the centrum moves downwards, so that a plurality of groups of slips respectively move outwards along a plurality of groups of sliding grooves, and the plurality of groups of sliding grooves and the plurality of groups of slips are all in a T shape, the plurality of groups of slips are clamped on the sleeve to realize seat sealing, most areas of the plurality of groups of first balls are all positioned in the first moving grooves, most areas of the plurality of groups of second balls are all positioned in the second moving grooves, most areas of the plurality of groups of third balls are respectively positioned in the plurality of groups of third moving grooves, therefore, a plurality of groups of first balls, a plurality of groups of second balls and a plurality of groups of third balls are difficult to separate from the slips, and the plurality of groups of first balls, the plurality of groups of second balls and the plurality of groups of third balls are tangent with the mounting ring, the sliding friction is converted into rolling friction by the multiple groups of first balls, the multiple groups of second balls and the multiple groups of third balls, so that the friction force is reduced, the smoothness of the multiple groups of slips during movement is improved, and the use limitation is reduced; the packer body descends in-process, and rubber ring and the contact of well drilling inner wall on the multiunit roller bearing, under the frictional force effect of rubber ring and well drilling inner wall, multiunit dwang, multiunit rotary rod, multiunit roller bearing and multiunit rubber ring all take place to rotate, change sliding friction into rolling friction, reduce righting mechanism wearing and tearing, improve and use the reliability.
The utility model discloses a permanent setting staged fracturing packer, first swivel chute and second swivel chute department are provided with two sets of ball bearing 21 respectively, and each group dwang 17 and each group rotary rod 18 one end insert respectively two sets of ball bearing 21 inside and respectively with two sets of ball bearing 21 key-type connections; dwang and rotary rod one end insert respectively two sets of ball bearing inside and connect with two sets of ball bearing key-types respectively, improve dwang, rotary rod and roller bearing pivoted stability.
The utility model discloses a permanent setting staged fracturing packer, still include first limiting plate 22, first limiting plate 22 is provided with the first spacing hole of multiunit, multiunit first ball 14 passes the first spacing hole of multiunit respectively; the first limiting plate limits the distance between the multiple groups of first balls and prevents the multiple groups of first balls from gathering.
The utility model discloses a permanent setting staged fracturing packer still includes second limiting plate 23, and second limiting plate 23 is provided with the spacing hole of multiunit second, and multiunit second ball 15 passes the spacing hole of multiunit second respectively; the second limiting plate limits the distance between the multiple groups of second balls and prevents the multiple groups of second balls from gathering.
The utility model discloses a permanent setting staged fracturing packer still includes multiunit third limiting plate 24, all is provided with multiunit third spacing hole on every group third limiting plate 24, and multiunit third ball 16 passes multiunit third spacing hole respectively; the distance between the multiple groups of third balls is limited by the multiple groups of third limiting plates, and the multiple groups of third balls are prevented from being gathered.
The utility model discloses a permanent setting staged fracturing packer, the multiple groups of third moving grooves are two groups; the multiple groups of third moving grooves are two groups, and the two groups of third moving grooves are symmetrical, so that the stability of the slip is improved.
The permanent setting staged fracturing packer of the utility model drops the packer body to a designated position, the centrum moves downwards to cause a plurality of groups of slips to move outwards along a plurality of groups of sliding grooves respectively, and the plurality of groups of sliding grooves and the plurality of groups of slips are all in a T shape, the plurality of groups of slips are clamped on a sleeve to realize setting, most areas of a plurality of groups of first balls are all positioned in the first moving grooves, most areas of a plurality of groups of second balls are all positioned in the second moving grooves, most areas of a plurality of groups of third balls are respectively positioned in a plurality of groups of third moving grooves, so that the plurality of groups of first balls, the plurality of groups of second balls and the plurality of groups of third balls are all difficult to be separated from the slips, and the plurality of groups of first balls, the plurality of groups of second balls and the plurality of groups of third balls are all tangent with a mounting ring, in the moving process of groups of slips, the plurality of groups of first balls, the plurality of groups of second balls and the plurality of third, prevent that the first ball of multiunit from taking place the gathering, the second limiting plate is injectd the distance between the multiunit second ball, prevent that the gathering from taking place for the multiunit second ball, multiunit third limiting plate is injectd the distance between the multiunit third ball, prevent that the gathering from taking place for the multiunit third ball, multiunit third shifting chute is two sets of, and two sets of third shifting chutes are the symmetry form, improve the stationarity of slips, packer body descends the in-process, rubber ring and the well drilling inner wall contact on the multiunit roller bearing, under the frictional force effect of rubber ring and well drilling inner wall, the multiunit dwang, the multiunit rotary rod, multiunit roller bearing and multiunit rubber ring all take place to rotate, change sliding friction into rolling friction, dwang and rotary rod one end insert respectively inside two sets of ball bearing and respectively with two sets of ball bearing key.
The utility model discloses a permanent setting staged fracturing packer, the packer body that involves purchase by oneself for the user, and the application method is detailed to be seen in its self-contained application specification
The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only. The terms "first," "second," "third," and the like in the description of the invention do not denote any particular quantity or order, but rather are used to distinguish one element from another.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A permanent setting segmented fracturing packer comprises a packer body, wherein the packer body comprises an upper joint (1), a connector (2), a valve seat (3), a spring seat (4), an anchoring mechanism (25), a rubber cylinder assembly (5), a central tube (6), a floating joint (7), a baffle ring (8), a centering mechanism and a lower joint (9), the upper joint (1), the connector (2), the valve seat (3), the spring seat (4), the anchoring mechanism (25), the rubber cylinder assembly (5), the floating joint (7), the baffle ring (8), the centering mechanism and the lower joint (9) are sequentially arranged on the central tube (6) from top to bottom, the anchoring mechanism (25) comprises a cone (10), a plurality of slips (11) and a mounting ring (12), a plurality of groups of sliding grooves capable of diffusing outwards are formed in the top side wall of the mounting ring (12), the bottom ends of the slips (11) are respectively inserted into the plurality of groups of sliding grooves, the centrum (10) is contacted with a plurality of groups of slips (11), and the righting mechanism comprises a plurality of groups of trapezoidal blocks (13); the slip is characterized by further comprising a plurality of groups of first balls (14), a plurality of groups of second balls (15) and a plurality of groups of third balls (16), wherein a first moving groove, a second moving groove and a plurality of groups of third moving grooves are respectively formed in the central area of the left side wall, the central area of the right side wall and the bottom side wall of each group of slip (11), most areas of the plurality of groups of first balls (14) are positioned in the first moving grooves, most areas of the plurality of groups of second balls (15) are positioned in the second moving grooves, and most areas of the plurality of groups of third balls (16) are respectively positioned in the plurality of groups of third moving grooves; still include multiunit dwang (17), multiunit rotary rod (18) and multiunit roller bearing (19), all be provided with three groups on multiunit trapezoidal piece (13) lateral wall and rotate the groove, every group it is provided with first swivelling chute and second swivelling chute respectively to rotate groove left side wall and interior right side wall, every group dwang (17) and every group rotatory inslot portion, every group are inserted respectively to rotary rod (18) one end dwang (17) and every group rotary rod (18) other end respectively with every group lateral wall and back lateral wall central zone are connected before roller bearing (19) to all be provided with rubber ring (20) on multiunit roller bearing (19) lateral wall.
2. The permanently set segmented fracture packer as claimed in claim 1, characterized in that two sets of ball bearings (21) are respectively arranged at the first and second rotary grooves, one end of each set of the rotating rod (17) and one end of each set of the rotating rod (18) are respectively inserted into the two sets of ball bearings (21) and are respectively keyed with the two sets of ball bearings (21).
3. The permanently set staged fracturing packer of claim 2, further comprising a first limit plate (22), wherein the first limit plate (22) is provided with a plurality of sets of first limit holes, and wherein the plurality of sets of first balls (14) pass through the plurality of sets of first limit holes, respectively.
4. The permanently-set staged fracturing packer according to claim 3, further comprising a second limiting plate (23), wherein the second limiting plate (23) is provided with a plurality of sets of second limiting holes, and the plurality of sets of second balls (15) respectively pass through the plurality of sets of second limiting holes.
5. The permanently-set staged fracturing packer as claimed in claim 4, further comprising a plurality of sets of third limiting plates (24), wherein each set of third limiting plates (24) is provided with a plurality of sets of third limiting holes, and the plurality of sets of third balls (16) respectively pass through the plurality of sets of third limiting holes.
6. The permanently set frac packer of claim 5, wherein the plurality of sets of third traveling grooves are two sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307620.8U CN211287611U (en) | 2019-03-12 | 2019-03-12 | Permanent setting staged fracturing packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920307620.8U CN211287611U (en) | 2019-03-12 | 2019-03-12 | Permanent setting staged fracturing packer |
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| Publication Number | Publication Date |
|---|---|
| CN211287611U true CN211287611U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920307620.8U Active CN211287611U (en) | 2019-03-12 | 2019-03-12 | Permanent setting staged fracturing packer |
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| CN (1) | CN211287611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022187789A1 (en) * | 2021-03-01 | 2022-09-09 | Baker Hughes Oilfield Operations Llc | Packer assembly with slip system |
-
2019
- 2019-03-12 CN CN201920307620.8U patent/CN211287611U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022187789A1 (en) * | 2021-03-01 | 2022-09-09 | Baker Hughes Oilfield Operations Llc | Packer assembly with slip system |
| GB2619481A (en) * | 2021-03-01 | 2023-12-06 | Baker Hughes Oilfield Operations Llc | Packer assembly with slip system |
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