CN211448611U - Three-combined packer for slip friction sealing - Google Patents
Three-combined packer for slip friction sealing Download PDFInfo
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- CN211448611U CN211448611U CN202020081684.3U CN202020081684U CN211448611U CN 211448611 U CN211448611 U CN 211448611U CN 202020081684 U CN202020081684 U CN 202020081684U CN 211448611 U CN211448611 U CN 211448611U
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Abstract
The utility model belongs to the technical field of downhole tool, in particular to a three-combined packer for slip friction sealing, which comprises a central tube, wherein an upper joint, a self-sealing rubber cylinder and a slip seat are sequentially arranged on the outer side wall of the left end of the central tube from left to right, an O-shaped sealing ring is arranged on the inner side wall of the upper joint, which is close to the outer side wall of the left end of the central tube, and a spacer ring is fixedly arranged at the middle position of the self-sealing rubber cylinder; the self-sealing rubber cylinder material is made of an elastic material with strength through vulcanization, and has the characteristics of high temperature resistance, ageing resistance and high pressure difference resistance, after long-term setting compression and unsealing, the recovery performance is good, the sealing service life is favorably prolonged, a T-shaped groove guide limiting telescopic sliding eight-slip structure is used in the design, the work is flexible and reliable, the efficiency is high, high-strength hard alloy teeth are embedded on the slip occlusion surface, the operation and the replacement are convenient, the slip can easily grab and bite any steel-grade sleeve, and the problem that the packer is difficult to set or unseal in the middle due to the fact that the slip is not firmly occluded with the sleeve is overcome.
Description
Technical Field
The utility model relates to a downhole tool technical field especially relates to three modular packers of slips friction seal.
Background
With the rapid development of national economy in China, the needed crude oil is multiplied, more and more oil fields are developed and constructed, more and more oil wells and gas wells are drilled and produced, a large number of pipe columns, drilling tools and the like are used, and the multiple-seal combined packer is a tool of a downhole tool for downhole layered oil production, testing, water finding, water plugging, acidification and casing protection.
The technical problems in the prior art are as follows:
the traditional packer is short in sealing life, inconvenient to operate, low in efficiency, extremely inconvenient, large in equipment cost and short in service life, the packer needs to be replaced by a new packer within 6 months, great waste is caused, and the production is influenced and a large amount of manpower is needed due to shutdown during replacement.
In order to solve the problems, the application provides a slip friction seal three-combined packer.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem who exists among the background art, the utility model provides a three modular packers of slips friction seal has sealed and long service life, is convenient for operate and change, efficient characteristics.
(II) technical scheme
In order to solve the problems, the utility model provides a slip friction sealing three-combination packer, which comprises a central tube, wherein a top joint, a self-sealing rubber cylinder and a slip seat are sequentially arranged on the outer side wall of the left end of the central tube from left to right, an O-shaped sealing ring is arranged on the inner side wall of the top joint, which is close to the left end outer side wall of the central tube, a spacer ring is fixedly arranged at the middle position of the self-sealing rubber cylinder, a protective bowl is arranged at the joint of the self-sealing rubber cylinder and the slip seat, a compression ring is fixedly arranged on the left end surface of the slip seat, a compression ring bolt is arranged on the side surface of the compression ring, and the compression ring bolt penetrates through the compression ring and extends to the;
the outer side wall of center tube is close to the slips is installed on the right side of slip seat, the internally mounted of slips has the spacing bolt of slips, the stop collar bolt is installed to the lateral wall of slips, the center tube is close to friction reversing sleeve, friction disc stop collar, friction switching-over piece and friction disc swivel nut are installed in proper order from left to right in the right side of slips, the appearance chamber has been seted up to the inside of friction switching-over piece, hold the intracavity and install the plate spring, the friction switching-over piece with the pin is installed to the junction of friction disc swivel nut.
Preferably, the occlusal surface of slips inlays high strength carbide tooth, just the slips is the eight slips structures of spacing flexible slip of T type groove direction.
Preferably, there is a distance between the slips and the slip bowl.
Preferably, the outer side wall of the friction reversing sheet is embedded with high-strength hard alloy.
Preferably, the self-sealing rubber cylinder is made of high-strength elastic materials through vulcanization.
Preferably, the leaf spring is a high-elasticity stainless steel disc spring.
The above technical scheme of the utility model has following profitable technological effect:
1. the self-sealing rubber cylinder is made of an elastic material with high strength through vulcanization, has the characteristics of high temperature resistance, ageing resistance and high pressure difference resistance, has good recovery performance after long-term setting, compression and unsealing, and is beneficial to prolonging the sealing service life;
2. the design has a T-shaped groove guide limit telescopic sliding eight-slip structure, the work is flexible and reliable, the efficiency is high, the high-strength hard alloy teeth are embedded on the slip occlusion surface, the operation and the replacement are convenient, the slip can easily grasp and bite any steel-grade casing pipe, and the problem that the packer is difficult to seal or is unsealed in the middle due to the fact that the slip is not firmly occluded with the casing pipe is overcome;
3. the friction commutator segment is embedded with high-strength hard alloy, so that excessive abrasion of the friction commutator segment in the process of downhole operation is prevented, the leaf spring is a high-elasticity stainless steel disc spring, the performance is not influenced under the long-term action of a corrosive medium at high temperature in the pit, the tool seat seal is convenient, and the service life is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals:
1. an upper joint; 2. an O-shaped sealing ring; 3. a self-sealing rubber cylinder; 4. a spacer ring; 5. protecting a bowl; 6. pressing a ring; 7. a ring-pressing bolt; 8. a slip seat; 9. slips; 10. a slip limiting bolt; 11. a stop collar bolt; 12. a friction reversing sleeve; 13. a friction plate reversing sleeve; 14. a friction plate limiting sleeve; 15. a friction commutator segment; 16. a leaf spring; 17. a pin; 18. a friction plate thread sleeve; 19. a central tube.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-1, the utility model provides a three combination formula packers of slips friction seal, including center tube 19, top connection 1, self-sealing packing element 3 and slip bowl 8 are installed from left to right in proper order to the left end lateral wall of center tube 19, O type sealing washer 2 is installed to the left end lateral wall of center tube 19 near the inside wall of top connection 1, the fixed spacer ring 4 that is equipped with in intermediate position department of self-sealing packing element 3, the bowl 5 is installed to the junction of self-sealing packing element 3 and slip bowl 8, the fixed clamping ring 6 that is equipped with of left end face of slip bowl 8, clamping ring bolt 7 is installed to the side of clamping ring 6, clamping ring bolt 7 runs through clamping ring 6 and extends to the inside of slip bowl 8;
as shown in fig. 1, the self-sealing rubber cylinder 3 is made of high-strength elastic material by vulcanization as one example.
The self-sealing rubber cylinder 3 is made of a high-strength elastic material through vulcanization for 96 hours.
As shown in fig. 1, in one embodiment, the engaging surface of the slip 9 is embedded with a high-strength hard alloy tooth, and the slip 9 has a T-shaped groove guiding, limiting, and telescopic sliding eight-slip structure.
As shown in fig. 1, for one embodiment, there is a distance between the slips 9 and the slip bowl 8.
It should be noted that the opening or retraction of the slips 9 is facilitated.
As shown in fig. 1, as an example, a high strength cemented carbide is embedded in an outer side wall of the friction commutator segment 15.
As shown in FIG. 1, the leaf spring 16 is a high-spring stainless steel disc spring, as one example.
The disc spring is also called a Belleville spring washer, is in a conical disc shape, has special functions in function different from the traditional spring, and is mainly characterized by large load, short stroke, small required space, convenient combination and use, easy maintenance and replacement, high economic safety and suitability for precise heavy machinery with small space and large load.
In the utility model, the self-sealing rubber cylinder 3 is made of an elastic material with high strength by vulcanization, and has the characteristics of high temperature resistance, aging resistance and high pressure difference resistance, after long-term seat sealing compression and unsealing, the restorability is good, and the sealing life is favorably improved, the O-shaped sealing ring 2 increases the friction force and the sealing property between the central pipe 19 and the upper joint 1, the spacing ring 4 enhances the connection between the self-sealing rubber cylinder 3 and the central pipe 19, the protective bowl 5, the pressing ring 6 and the pressing ring bolt 7 are matched to be beneficial to the stability of the self-sealing rubber cylinder 3 and the slip seat 8, the slip limiting bolt 10 is used for fixing the slip 9, the friction reversing sleeve 12, the friction plate reversing sleeve 13 and the friction plate limiting sleeve 14 are matched to ensure that the slip 9 is tightly connected with the friction plate reversing plate 15, the friction plate thread sleeve 18 assists in fixing the friction plate 15, the pin 17 ensures that the plate spring 16 and the friction plate 15 are firmly installed, and a T-shaped groove, flexible operation is reliable, high efficiency, high strength stereoplasm alloy tooth is inlayed to slips 9 occlusal surface, be convenient for operate and change, make slips 9 can grab the sleeve pipe of gripping any steel level easily, overcome because slips 9 and sleeve pipe interlock are not firm, make packer setting difficulty or midway deblocking, friction commutator segment 15 inlays high strength carbide, prevent the excessive wearing and tearing of operation in-process friction commutator segment 15 in the pit, flat spring 16 is high elastic force stainless steel dish spring, high temperature in the pit, the performance is not influenced under the long-term effect of corrosive medium, the instrument setting of being convenient for is not deblocked, do benefit to and improve life.
The utility model discloses a theory of operation and use flow: the rotating pin 17 of the reversing mechanism is always in the upper dead point of the short track when the packer is in the well, when the packer is lowered to the designed position, the height required by the seat seal is lifted, and then the pipe column rotates continuously without interruption, at the moment, the central pipe 19 also rotates continuously, and the reversing piece 15 and the piece spring 16 are kept static by friction force with the sleeve;
at the time of slowly releasing the pipe column, the slip limiting bolt 10 enters the long track, then the oil pipe stops rotating, the pipe column continues to be released, the slip 9 is supported, the cone moves downwards to expand the slip 9 on the slip seat 8, the slip is clamped on the wall of the casing, the self-sealing rubber cylinder 3 is radially expanded under the weight of the oil pipe, the annular space of the oil casing is sealed, the oil pipe is lifted upwards when the oil pipe is unlocked, the central pipe 19 moves upwards, the slip limiting bolt 10 rotates and moves to the bottom dead center of the short track along the inclined wall of the track, and the self-sealing rubber cylinder 3 and the slip 9 are retracted, so that the oil pipe is.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. The three-combined packer adopting slip friction sealing is characterized by comprising a central tube (19), wherein an upper joint (1), a self-sealing rubber cylinder (3) and a slip seat (8) are sequentially installed on the outer side wall of the left end of the central tube (19) from left to right, an O-shaped sealing ring (2) is installed on the inner side wall, close to the upper joint (1), of the outer side wall of the left end of the central tube (19), a spacer ring (4) is fixedly arranged at the middle position of the self-sealing rubber cylinder (3), a protective bowl (5) is installed at the joint of the self-sealing rubber cylinder (3) and the slip seat (8), a pressing ring (6) is fixedly arranged on the left end face of the slip seat (8), a pressing ring bolt (7) is installed on the side face of the pressing ring (6), and the pressing ring bolt (7) penetrates through the pressing ring (6) and extends into the slip seat (8);
the outer side wall of center tube (19) is close to slips (9) are installed on the right side of slip seat (8), the internally mounted of slips (9) has slips stop bolt (10), stop collar bolt (11) are installed to the lateral wall of slips (9), center tube (19) are close to friction reversing sleeve (12), friction disc reversing sleeve (13), friction disc stop collar (14), friction reversing plate (15) and friction disc swivel nut (18) are installed in proper order from left to right in the right side of slips (9), the appearance chamber has been seted up to the inside of friction reversing plate (15), hold intracavity and install leaf spring (16), friction reversing plate (15) with pin (17) are installed to the junction of friction disc swivel nut (18).
2. The three-unit packer with slip friction seal according to claim 1, characterized in that the occlusal surface of the slip (9) is embedded with high-strength hard alloy teeth, and the slip (9) is a T-shaped groove guiding and limiting telescopic sliding eight-slip structure.
3. A slip friction seal triple combination packer according to claim 1, characterised in that there is a distance between the slips (9) and the slip bowl (8).
4. The three-unit packer of slip friction seals according to claim 1, characterised in that the outer side wall of the friction reverser (15) is embedded in high strength cemented carbide.
5. The three-pack type packer of slip friction seals according to claim 1, characterized in that the self-sealing rubber cylinder (3) is made of a high-strength elastomeric material vulcanized.
6. The three-pack packer of slip friction seals of claim 1, wherein the leaf spring (16) is a high-spring stainless steel disc spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020081684.3U CN211448611U (en) | 2020-01-14 | 2020-01-14 | Three-combined packer for slip friction sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020081684.3U CN211448611U (en) | 2020-01-14 | 2020-01-14 | Three-combined packer for slip friction sealing |
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| CN211448611U true CN211448611U (en) | 2020-09-08 |
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| CN202020081684.3U Active CN211448611U (en) | 2020-01-14 | 2020-01-14 | Three-combined packer for slip friction sealing |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123755A (en) * | 2021-05-10 | 2021-07-16 | 盐城市崇达石化机械有限公司 | Double-acting packer for oil well pipeline |
| CN113863890A (en) * | 2021-10-22 | 2021-12-31 | 盐城市荣嘉机械制造有限公司 | Oil packer |
-
2020
- 2020-01-14 CN CN202020081684.3U patent/CN211448611U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123755A (en) * | 2021-05-10 | 2021-07-16 | 盐城市崇达石化机械有限公司 | Double-acting packer for oil well pipeline |
| CN113123755B (en) * | 2021-05-10 | 2022-02-18 | 盐城市崇达石化机械有限公司 | Double-acting packer for oil well pipeline |
| CN113863890A (en) * | 2021-10-22 | 2021-12-31 | 盐城市荣嘉机械制造有限公司 | Oil packer |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Three combination packer with slip friction seal Effective date of registration: 20230918 Granted publication date: 20200908 Pledgee: Industrial and Commercial Bank of China Limited Funing Branch Pledgor: YANCHENG XIONGWEI PETROCHEMICAL GENERAL MACHINERY EQUIPMENT CO.,LTD. Registration number: Y2023990000455 |