CN213775310U - Small hole windowing side drilling well cementation packer - Google Patents
Small hole windowing side drilling well cementation packer Download PDFInfo
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- CN213775310U CN213775310U CN202022972438.XU CN202022972438U CN213775310U CN 213775310 U CN213775310 U CN 213775310U CN 202022972438 U CN202022972438 U CN 202022972438U CN 213775310 U CN213775310 U CN 213775310U
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Abstract
The utility model discloses a slim hole windowing side drilling well cementation packer, which comprises an upper joint, wherein the upper joint is a taper pipe of 48/8, one end of the upper joint is in threaded connection with a central pipe, the outer wall of the central pipe is fixedly connected with a plurality of spacer rings, opposite sides of two adjacent spacer rings are fixedly provided with a rubber cylinder, one side of the outer wall rubber cylinder positioned on the central pipe is fixedly provided with a cone, the outer wall of the right central pipe positioned on the cone is fixedly provided with a slip seat, the left side of the slip seat is fixedly connected with slips, the outer wall of the right central pipe positioned on the slip seat is fixedly provided with a locking short section, the front part of the locking short section is provided with a ball blocking sleeve, the outer wall of the ball blocking sleeve is provided with a chute, a steel ball is arranged inside the chute, the outer wall of the right central pipe positioned on the ball blocking sleeve is fixedly provided with a centering block sheath, the outer wall of the right side of the centering block sheath is fixedly provided with a centering block seat, the small-hole windowing side-drilling well cementation packer has a good effect on well cementation.
Description
Technical Field
The utility model relates to a well cementation instrument technical field in the pit of oil and gas industry specifically is a slim hole windowing sidetracking well cementation packer.
Background
The well cementing operation is one of the most important links in the oil and gas well drilling engineering, the main purpose is to seal off the oil layer, the gas layer and the water layer in the well bore, protect the casing of the oil and gas well, increase the service life of the oil and gas well and improve the oil and gas yield, the well cementing packer is widely applied to the oil and gas well cementing or well completion tools in the oil and gas industry, the construction of the oil and gas well cementing is more and more along with the pressure sensitive ground type stratum, in order to ensure the well cementing quality of the well, the well cementing packer is used, the oil, gas and water are prevented or controlled from mutually channeling by the mechanical mode, thereby ensuring the circular flushing and mixing of the slurry after the well cementing, the well leakage or the gas channeling does not occur in the slurry mixing process, the well cementing packer used in the prior art is composed of a rubber cylinder, a mandrel, a valve system and the like, wherein the valve system is composed of an expansion limiting valve, a check valve and a closing valve, the number of the valve system is more, the structure is complex, the processing is difficult, and the defects of poor well cementation quality, high operation difficulty, long construction period and the like exist. Therefore, the small hole windowing side well drilling well cementing packer is improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a slim hole windowing side drilling well cementation packer, which comprises an upper joint, wherein the upper joint is an 48/8 taper pipe, one end of the upper joint is in threaded connection with a central pipe, the outer wall of the central pipe is fixedly connected with a plurality of spacer rings, rubber cylinders are fixedly arranged on opposite sides of two adjacent spacer rings, a cone is fixedly arranged on one side of the rubber cylinder on the outer wall of the central pipe, a slip seat is fixedly arranged on the outer wall of the central pipe on the right side of the cone, the left side of the slip seat is fixedly connected with a slip, the outer wall of a right central tube positioned on the slip seat is fixedly provided with a locking short section, the front part of the locking short section is provided with a ball blocking sleeve, the outer wall of the ball blocking sleeve is provided with a chute, and the steel ball is arranged in the sliding groove, a centering block sheath is fixedly arranged on the outer wall of the right central tube of the ball blocking sleeve, and a centering block seat is fixedly arranged on the outer wall of the right central tube of the centering block sheath.
As an optimal technical scheme of the utility model, the outer wall of slip seat is provided with the sheath, is located the outer wall of the right side slip seat of sheath is provided with first spring.
As an optimal technical scheme of the utility model, the fixed piece of righting that is provided with in front of righting the block seat, right the piece and right fixed mounting between the block seat have the second spring.
As an optimal technical scheme of the utility model, be located the outer wall fixed mounting of the right side center tube of righting the block seat has the sliding ring, the outer wall of sliding ring is provided with the sliding ring pin, the sliding ring passes through the sliding ring pin to be fixed at the outer wall of center tube.
As a preferred technical scheme of the utility model, the one end fixed mounting that the top connection was kept away from to the center tube has the lower clutch, the last table wall of lower clutch and the lower table wall fixed connection of center tube.
As an optimal technical scheme of the utility model, adjacent two the fixed packing element that is provided with in relative one side of spacer ring, the right side fixedly connected with stop collar of packing element.
As an optimal technical scheme of the utility model, the last wall of center tube is provided with the screw thread piece, the screw thread piece passes through the outer wall block of fixture block and center tube.
The utility model has the advantages that: when the construction requirement sets the oil well, the cement truck pressurizes from the pipe column, the pressure liquid enters the hydraulic cavity formed by the rubber cylinder seat, the piston and the lock sleeve through the liquid inlet hole of the central pipe, the pressure liquid pushes the rubber cylinder and the lock sleeve to move upwards to compress the rubber cylinder, when the rubber cylinder is compressed in place, the locking mechanism is locked to complete the setting, when the well needs to be fixed, the annular space is sealed by the compressed rubber cylinder and the protective cover, and after the lock sleeve moves upwards, the sawtooth thread is engaged and locked with the sawtooth thread on the locking spring, thereby achieving permanent setting.
Drawings
FIG. 1 is a schematic cross-sectional view of the cementing packer for window-opening and side-drilling of a slim hole of the present invention;
FIG. 2 is a schematic view of the overall structure of the small hole window-opening side drilling well cementation packer of the present invention;
fig. 3 is the enlarged structure schematic diagram of the point a in fig. 1 of the window-opening side-drilling well cementation packer of the utility model.
In the figure: 1. an upper joint; 2. a central tube; 3. a spacer ring; 4. a rubber cylinder; 5. a limiting sleeve; 6. a vertebral body; 7. slips; 8. a slip seat; 9. a sheath; 10. a first spring; 11. locking the short section; 12. a ball blocking sleeve; 13. a steel ball; 14. a righting block sheath; 15. a righting block seat; 16. a righting block; 17. a second spring; 18. a slip ring; 19. a slip ring pin; 20. a lower joint; 21. a thread block.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in figures 1-3, the utility model relates to a slim hole windowing side drilling well cementation packer, which comprises an upper joint 1, wherein the upper joint 1 is a taper pipe of 48/8, one end of the upper joint 1 is connected with a central pipe 2 through a thread, the outer wall of the central pipe 2 is fixedly connected with a plurality of spacer rings 3, opposite sides of two adjacent spacer rings 3 are fixedly provided with a rubber cylinder 4, one side of the outer wall rubber cylinder 4 positioned on the central pipe 2 is fixedly provided with a cone 6, the outer wall of the right central pipe 2 positioned on the cone 6 is fixedly provided with a slip seat 8, the left side of the slip seat 8 is fixedly connected with a slip 7, the outer wall of the right central pipe 2 positioned on the slip seat 8 is fixedly provided with a locking nipple 11, the front part of the locking nipple 11 is provided with a ball blocking sleeve 12, the outer wall of the ball blocking sleeve 12 is provided with a chute, and a steel ball 13 is arranged in the chute, the outer wall of the right central pipe 2 positioned on the ball blocking sleeve 12 is fixedly provided with a centering block sheath 14, a centering block seat 15 is fixedly arranged on the outer wall of the central tube 2 on the right side of the centering block sheath 14, and a centering block 16 is conveniently arranged on the centering block seat 15.
Wherein, the outer wall of the slip bowl 8 is provided with a sheath 9, the outer wall of the slip bowl 8 positioned at the right side of the sheath 9 is provided with a first spring 10, and the first spring 10 is convenient for the opening of the slips 7.
Wherein, the front part of the righting block seat 15 is fixedly provided with a righting block 16, a second spring 17 is fixedly arranged between the righting block 16 and the righting block seat 15, and the second spring 17 is convenient for the movement of the righting block 16.
Wherein, the outer wall of the right side center tube 2 that is located the centering block seat 15 is fixedly provided with a sliding ring 18, the outer wall of the sliding ring 18 is provided with a sliding ring pin 19, the sliding ring 18 is fixed on the outer wall of the center tube 2 through the sliding ring pin 19, and the sliding ring pin 19 is convenient for fixing the sliding ring 18.
Wherein, the one end fixed mounting that the top connection 1 was kept away from to center tube 2 has lower clutch 20, and the last table wall of lower clutch 20 and the lower table wall fixed connection of center tube 2, top connection 1 and lower clutch 20 are convenient for fixed to center tube 2.
Wherein, the relative one side of two adjacent spacer rings 3 is fixed and is provided with packing element 4, and the right side fixedly connected with stop collar 5 of packing element 4, stop collar 5 are convenient for to the fixed of packing element 4.
Wherein, the upper surface wall of center tube 2 is provided with screw block 21, and screw block 21 passes through the fixture block and the outer wall block of center tube 2, and the fixture block is convenient for the dismantlement to screw block 21.
The working principle is as follows: when construction is required to set an oil well, in the process of putting the packer into the well, the friction block clings to the inner wall of the casing to descend under the tension of the first spring 10, the slips 7 and the slip seat 8 are positioned on the short track, when the packer descends to a preset position, the slips 7 and the slip seat 8 enter the long track from the short track, the cone 6 pushes the slips 7 to expand, so that the slips 7 are occluded on the inner wall of the casing to form support, meanwhile, the rubber cylinder 4 is compressed under the gravity of a certain pipe column by the setting shear pin, so that the diameter of the rubber cylinder 4 is increased, and the annular space of the oil-insulated casing is sealed, when needing to be unsealed, the pipe column is lifted, the slips 7 and the slip seat 8 enter the short track from the long track and drive the cone to ascend, so that the cone exits from the slips, and rubber cylinder liquid is automatically withdrawn and unsealed, so that the traditional design of the rubber cylinder 4 is changed, the sealing strength of the rubber cylinder 4 is enhanced, and the impact force of the rubber cylinder 4 can be enhanced when well cementing is carried out, the annular packer is very conveniently used for small tail pipe well cementation and annular packing, and has the effects of simple structure, small volume, light use and prolonged service life.
Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The small hole windowing side drilling well cementation packer comprises an upper joint (1) and is characterized in that the upper joint (1) is a 48/8 taper pipe, one end of the upper joint (1) is in threaded connection with a central pipe (2), the outer wall of the central pipe (2) is fixedly connected with a plurality of spacer rings (3), two adjacent spacer rings (3) are fixedly mounted on one opposite side of the rubber sleeve (4), a cone (6) is fixedly mounted on one side of the rubber sleeve (4) on the outer wall of the central pipe (2), a slip seat (8) is fixedly mounted on the outer wall of the central pipe (2) on the right side of the cone (6), slips (7) are fixedly connected on the left side of the slip seat (8), a locking nipple (11) is fixedly mounted on the outer wall of the central pipe (2) on the right side of the slip seat (8), and a ball blocking sleeve (12) is arranged in front of the locking nipple (11), the outer wall of the ball blocking sleeve (12) is provided with a sliding groove, a steel ball (13) is arranged in the sliding groove, a centering block sheath (14) is fixedly arranged on the outer wall of the right center tube (2) of the ball blocking sleeve (12), and a centering block seat (15) is fixedly arranged on the outer wall of the right center tube (2) of the centering block sheath (14).
2. A slim hole window sidetracking cementing packer according to claim 1, characterized in that the outer wall of the slip bowl (8) is provided with a jacket (9), and the outer wall of the slip bowl (8) on the right side of the jacket (9) is provided with a first spring (10).
3. The slim hole windowing sidetracking well cementing packer according to claim 1, characterized in that a centralizer (16) is fixedly arranged in front of the centralizer block seat (15), and a second spring (17) is fixedly arranged between the centralizer block (16) and the centralizer block seat (15).
4. The slim hole windowing sidetracking cementing packer according to claim 1, characterized in that a slip ring (18) is fixedly installed on the outer wall of the center tube (2) on the right side of the centralizer block seat (15), a slip ring pin (19) is arranged on the outer wall of the slip ring (18), and the slip ring (18) is fixed on the outer wall of the center tube (2) through the slip ring pin (19).
5. The slim hole windowing sidetracking cementing packer according to claim 1, characterized in that a lower joint (20) is fixedly mounted at the end of the central pipe (2) far from the upper joint (1), and the upper surface wall of the lower joint (20) is fixedly connected with the lower surface wall of the central pipe (2).
6. The slim hole windowing sidetracking well cementing packer according to claim 1, characterized in that a rubber cylinder (4) is fixedly arranged at one side of two adjacent spacer rings (3) opposite to each other, and a limiting sleeve (5) is fixedly connected to the right side of the rubber cylinder (4).
7. The slim hole windowing sidetrack drilling and cementing packer according to claim 1, characterized in that the upper surface wall of the central tube (2) is provided with a threaded block (21), and the threaded block (21) is clamped with the outer wall of the central tube (2) through a clamping block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022972438.XU CN213775310U (en) | 2020-12-11 | 2020-12-11 | Small hole windowing side drilling well cementation packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022972438.XU CN213775310U (en) | 2020-12-11 | 2020-12-11 | Small hole windowing side drilling well cementation packer |
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| Publication Number | Publication Date |
|---|---|
| CN213775310U true CN213775310U (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022972438.XU Active CN213775310U (en) | 2020-12-11 | 2020-12-11 | Small hole windowing side drilling well cementation packer |
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| CN (1) | CN213775310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856486A (en) * | 2022-03-10 | 2022-08-05 | 江苏柯沣石化机械有限公司 | Oil pipe packer with rubber barrel convenient to replace |
-
2020
- 2020-12-11 CN CN202022972438.XU patent/CN213775310U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856486A (en) * | 2022-03-10 | 2022-08-05 | 江苏柯沣石化机械有限公司 | Oil pipe packer with rubber barrel convenient to replace |
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