CN216517923U - Novel floating valve core and dismounting tool - Google Patents
Novel floating valve core and dismounting tool Download PDFInfo
- Publication number
- CN216517923U CN216517923U CN202122990772.2U CN202122990772U CN216517923U CN 216517923 U CN216517923 U CN 216517923U CN 202122990772 U CN202122990772 U CN 202122990772U CN 216517923 U CN216517923 U CN 216517923U
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- valve core
- floating valve
- clamping grooves
- dismounting
- end part
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Abstract
The utility model discloses a novel floating valve core and a dismounting tool, which comprise a floating valve core and a dismounting device, wherein three clamping grooves are uniformly distributed on the side wall of an inner hole at the end part of a valve body of the floating valve core, and an annular groove connected with the three clamping grooves is formed in the inner wall of the inner hole at the end part of the valve body of the floating valve core; the dismounting device comprises a dismounting sleeve and a polish rod, three bosses corresponding to the clamping grooves are uniformly distributed at one end of the dismounting sleeve, and the outer diameter of each boss is larger than the diameter of an inner hole at the end part of the valve body of the floating valve core and smaller than the diameter of the annular groove, so that the bosses can be conveniently matched with the annular groove. According to the utility model, the three clamping grooves are formed in the end part of the valve body of the floating valve core and the annular groove is formed in the side wall of the inner hole, so that the floating valve core can be rotated and pulled through the clamping claws and the bosses on the dismounting device, the problem that the floating valve core cannot be dismounted and replaced in a use site of a drilling crew is solved, the production time is saved for the drilling crew, the on-site safe operation is ensured, and the maintenance and replacement at a pipe maintenance station are not required.
Description
Technical Field
The utility model relates to a novel floating valve core and a disassembling tool, and belongs to the technical field of oilfield downhole tools.
Background
The float valve core is a common internal blowout prevention tool, and is matched with a spiral stabilizer, a drilling device, a float valve joint and other tools with float valve holes for use, the float valve core is eroded and abraded on a sealing surface of the float valve core due to slurry during use, in order to effectively ensure the reverse sealing performance of the float valve core, the float valve core with qualified performance must be frequently replaced, but generally no professional maintenance equipment can not be replaced quickly, the surface slurry adsorption of the float valve core after use can increase the disassembly and replacement difficulty, no professional equipment can be used on the site of a well team, and therefore, the replacement of the float valve core is usually completed in a pipe maintenance station. When the valve body joint is replaced, a sealing joint is arranged at one end of the valve body joint, high-pressure gas is injected into the valve body joint through the sealing joint, the high-pressure gas extrudes the floating valve core, but the quickly-ejected floating valve core can generate the risk of hurting people; the other method is that a long rod is used for impacting the bottom of the valve core through a valve body joint water hole, and the floating valve core is struck out through impact, so that the disassembly is labor-consuming and time-consuming, and the risk of hurting people also exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel floating valve core and a dismounting tool, which solve the problem that the floating valve core cannot be dismounted and replaced on the use site of a drilling crew, save the production time of the drilling crew, ensure the safe operation on the site, do not need to be maintained and replaced at a pipe maintenance station, and improve the maintenance efficiency.
The technical scheme of the utility model is as follows: a novel floating valve core and a dismounting tool comprise a floating valve core and a dismounting device, wherein three clamping grooves are uniformly distributed at the end part of a valve body of the floating valve core, and annular grooves connected with the three clamping grooves are formed in the inner wall of an inner hole at the end part of the valve body of the floating valve core; the dismounting device comprises a dismounting sleeve, three bosses corresponding to the clamping grooves are uniformly distributed at one end of the dismounting sleeve, and the outer diameter of each boss is larger than the diameter of an inner hole at the end part of the valve body of the float valve core and smaller than the diameter of the annular groove.
Furthermore, three clamping jaws corresponding to the clamping grooves are uniformly distributed at the other end of the disassembling sleeve, and the clamping jaws are in clearance fit with the clamping grooves.
Furthermore, a through kidney-shaped groove is formed in the middle of the disassembling sleeve, and a polished rod is inserted into the kidney-shaped groove.
Due to the adoption of the technical scheme, the utility model has the advantages that: according to the utility model, the three clamping grooves and the annular groove are formed at the end part of the valve body of the floating valve core, so that the floating valve core can be rotated and pulled through the clamping jaws and the bosses on the dismounting device, the problem that the floating valve core cannot be dismounted and replaced on a using site of a drilling crew is solved, the production time is saved for the drilling crew, the safe operation on the site is guaranteed, and the maintenance and replacement at a pipe maintenance station are not needed.
Drawings
FIG. 1 is a schematic view of a float valve cartridge in use;
FIG. 2 is a schematic view of the end of the valve body of the float valve cartridge;
FIG. 3 is a schematic view of the dismounting device;
FIG. 4 is a left side view of FIG. 3;
fig. 5 is a B-B sectional view of fig. 3.
Description of reference numerals: 1-floating valve core, 2-clamping groove, 3-female thread joint, 4-annular groove, 5-male thread joint, 6-disassembling sleeve, 7-clamping jaw, 8-boss, 9-kidney-shaped groove and 10-polished rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.
The embodiment of the utility model comprises the following steps: the novel floating valve core and the dismounting tool are structurally schematic diagrams as shown in figures 1-5, and comprise a floating valve core 1 and a dismounting device, wherein three clamping grooves 2 are uniformly distributed at the end part of a valve body of the floating valve core 1, and an annular groove 4 connected with the three clamping grooves 2 is formed in the inner wall of an inner hole at the end part of the valve body of the floating valve core 1; the dismounting device comprises a dismounting sleeve 6 and a polished rod 10, three bosses 8 corresponding to the clamping grooves 2 are uniformly distributed at one end of the dismounting sleeve 6, and the outer diameter of each boss 8 is larger than the diameter of the inner hole at the end part of the valve body of the float valve core 1 and smaller than the diameter of the annular groove 4. The other end of the disassembling sleeve 6 is evenly provided with three clamping jaws 7 corresponding to the clamping grooves 2, and the clamping jaws 7 are in clearance fit with the clamping grooves 2. The middle part of the disassembling sleeve 6 is provided with a through kidney-shaped groove 9, and a polished rod 10 is inserted into the kidney-shaped groove 9.
When the float valve core is disassembled in a well site, because the float valve core 1 is arranged between the female threaded joint 3 and the male threaded joint 5, firstly, the male threaded joint 5 is disassembled, then the clamping jaw 7 at one end of the disassembling sleeve 6 is inserted into the clamping groove 2 at the end part of the float valve core 1, then the polish rod is inserted into the kidney-shaped groove 9 of the disassembling sleeve 6, a certain rotating torque is applied to the polish rod 10 to enable the float valve core 1 to rotate relative to the female threaded joint 3, then the boss 8 at the other end of the disassembling sleeve 6 is inserted into the bottom of the clamping groove 2 of the float valve core 1 and then rotates into the annular groove 4, the boss 8 is contacted with the side wall of the annular groove 4, then a certain pulling force is applied to the polish rod 10 in the kidney-shaped groove 9 outwards, if the outward pulling force of the float valve core 1 is large, the outer end part of the kidney-shaped groove 9 can be impacted outwards and repeatedly through the polish rod 10, thus the float valve core 1 can be easily taken out from the female threaded joint 3, and then a new float valve core 1 qualified in test is installed in the female threaded joint 3 for continuous use, so that the purpose of quickly replacing the float valve core on the wellhead site is achieved.
In conclusion, the three clamping grooves 2 and the annular groove 4 are formed in the side wall of the end part of the valve body of the floating valve core 1, so that the floating valve core can be rotated and pulled through the clamping jaws 7 and the bosses 8 on the dismounting device, the problem that the floating valve core cannot be dismounted and replaced in a use site of a drilling crew is solved, the production time of the drilling crew is saved, the safety operation of the site is guaranteed, and the maintenance and the replacement in a pipe maintenance station are not needed.
Claims (3)
1. The utility model provides a novel superficial case and extracting tool, includes superficial case (1) and dismounting device, its characterized in that: three clamping grooves (2) are uniformly distributed at the end part of the valve body of the floating valve core (1), and an annular groove (4) connected with the clamping grooves (2) is formed in the inner wall of an inner hole at the end part of the valve body of the floating valve core (1); the dismounting device comprises a dismounting sleeve (6) and a polish rod (10), three bosses (8) corresponding to the clamping grooves (2) are uniformly distributed at one end of the dismounting sleeve (6), and the outer diameter of each boss (8) is larger than the diameter of an inner hole at the end part of the valve body of the float valve core (1) and smaller than the diameter of the annular groove (4).
2. The novel float valve cartridge and removal tool of claim 1, wherein: the other end of the disassembling sleeve (6) is evenly provided with three clamping jaws (7) corresponding to the clamping grooves (2), and the clamping jaws (7) are in clearance fit with the clamping grooves (2).
3. The novel float valve cartridge and removal tool of claim 1, wherein: the middle part of the disassembling sleeve (6) is provided with a through kidney-shaped groove (9), and a polished rod (10) is inserted into the kidney-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122990772.2U CN216517923U (en) | 2021-12-01 | 2021-12-01 | Novel floating valve core and dismounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122990772.2U CN216517923U (en) | 2021-12-01 | 2021-12-01 | Novel floating valve core and dismounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216517923U true CN216517923U (en) | 2022-05-13 |
Family
ID=81465337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122990772.2U Active CN216517923U (en) | 2021-12-01 | 2021-12-01 | Novel floating valve core and dismounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216517923U (en) |
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2021
- 2021-12-01 CN CN202122990772.2U patent/CN216517923U/en active Active
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