CN209924908U - Special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool - Google Patents
Special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool Download PDFInfo
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- CN209924908U CN209924908U CN201920389800.5U CN201920389800U CN209924908U CN 209924908 U CN209924908 U CN 209924908U CN 201920389800 U CN201920389800 U CN 201920389800U CN 209924908 U CN209924908 U CN 209924908U
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Abstract
The utility model discloses a special anticorrosive anticreep of high sulphur oil gas well that effectively prevents to drop glues screw rod drilling tool and processing technology. The method mainly comprises the following steps: bypass valve assembly, hydraulic motor assembly, cardan shaft assembly and transmission shaft assembly, the hydraulic motor assembly includes: the motor comprises a motor stator metal shell, a motor rotor and a motor stator rubber bushing arranged between the motor stator metal shell and the motor rotor; the motor stator metal shell is provided with a plurality of 90-degree angle inverted-splayed tapered holes, the 90-degree angle inverted-splayed tapered holes are internally provided with plugs, synthetic glue of a motor stator rubber bushing is injected into a cavity between the motor stator metal shell and a motor rotor mold core, and partial molten glue is injected into the 90-degree angle inverted-splayed tapered holes.
Description
Technical Field
The utility model relates to a special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool.
Background
With the increase of the demand of oil and gas resources, oil development gradually shifts to ultra-deep stratum and high-sulfur-content and ultra-high-pressure complex stratum, about 20 percent of oil and gas fields at present belong to high-pressure and high-temperature (temperature above 150 ℃ and pressure above 105 MPa) oil and gas fields, and most of the oil and gas fields contain high-concentration CO2And H2S gas, about more than 400 sulfur-containing oil and gas fields with industrial exploitation value are discovered globally, and in the development technology of high-temperature high-pressure high-sulfur oil and gas fields, a complete technical system is formed from the existence to the excellence in China, a domestic screw drilling tool used by a high-sulfur oil and gas well has no mature technology all the time, the U.S. import is expensive in cost and inconvenient to maintain, the domestic drilling tool comprises four parts, namely a stator assembly, a universal shaft assembly, a transmission shaft assembly and a bypass valve assembly, and cannot be suitable for the high-sulfur oil and gas well, the weakest link is the stator of a motor assembly, and the drilling and workover accidents are easily caused by embrittlement, hardening, invalidation and falling.
SUMMERY OF THE UTILITY MODEL
The technical problem that this practicality will be solved is: the special anti-corrosion and anti-glue-dropping screw drilling tool for the high-sulfur-content oil and gas well is capable of effectively preventing dropping.
In order to better solve the technical problem, the technical scheme adopted by the utility model is as follows: the utility model provides a special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool, mainly includes: bypass valve assembly, hydraulic motor assembly, cardan shaft assembly and transmission shaft assembly, the lower extreme of bypass valve assembly is connected with the hydraulic motor assembly, the lower extreme of hydraulic motor assembly is connected with the cardan shaft assembly, the lower extreme of cardan shaft assembly is connected with the transmission shaft assembly, the hydraulic motor assembly includes: the motor comprises a motor stator metal shell, a motor rotor and a motor stator rubber bushing arranged between the motor stator metal shell and the motor rotor; the motor stator metal shell is provided with a plurality of 90-degree angle inverted-splayed tapered holes, the 90-degree angle inverted-splayed tapered holes are internally provided with plugs, synthetic glue of a motor stator rubber bushing is injected into a cavity between the motor stator metal shell and a motor rotor mold core, and partial molten glue is injected into the 90-degree angle inverted-splayed tapered holes.
In order to better solve the technical problem, the further technical scheme adopted by the utility model is as follows: six groups of twenty-four inverted splayed tapered holes with 90-degree angles are arranged on the metal shell of the motor stator.
The utility model has the advantages that: the utility model provides a special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool, bores six groups twenty four 90 jiaos of inverted V-shaped bell holes of angle on motor stator metal casing, and the inside is narrow wide outward, and after the bell hole processing was accomplished, it was real with thin end cap welding outside the hole at stator casing. The synthetic rubber which is mixed and can resist oil, acid, CO2, H2S and other various media is injected into a cavity between a motor stator shell and a rotor mold core, part of molten rubber is injected into a taper hole, and the inverted-splayed structure of the taper hole ensures that the synthetic rubber is firmly implanted into a motor stator metal shell, can effectively prevent the synthetic rubber from being influenced by corrosive media and integrally falling off under complex well conditions, enhances the safety of a high-sulfur-content oil-gas well drilling tool motor, and fully ensures that a screw drilling tool is suitable for a sulfur-containing oil-gas field containing various corrosive media.
Drawings
Fig. 1 is the first section schematic structural diagram of the special anticorrosive anticreep of high sulphur oil gas well screw rod drilling tool of this utility model.
Fig. 2 is the structural schematic diagram of the second half section of the special anti-corrosion and anti-glue-dropping screw drilling tool for the high-sulfur oil and gas well.
In the figure: 1. the hydraulic motor comprises a bypass valve assembly, 2, a hydraulic motor assembly, 3, a universal shaft assembly, 4, a transmission shaft assembly, 21, a motor stator metal shell, 22, a motor rotor, 23, a motor stator rubber bushing, 211 and 90-degree inverted splayed conical holes, 212 and a plug.
Detailed Description
The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, the special corrosion-resistant and glue-shedding prevention screw drill for the high-sulfur oil and gas well mainly comprises: bypass valve assembly 1, hydraulic motor assembly 2, cardan shaft assembly 3 and transmission shaft assembly 4, the lower extreme of bypass valve assembly 1 is connected with hydraulic motor assembly 2, the lower extreme of hydraulic motor assembly 2 is connected with cardan shaft assembly 3, the lower extreme of cardan shaft assembly 3 is connected with transmission shaft assembly 3, hydraulic motor assembly 2 includes: a motor stator metal housing 21, a motor rotor 22, and a motor stator rubber bushing 23 provided between the motor stator metal housing 21 and the motor rotor 22; a plurality of inverted-splayed tapered holes 211 with 90 degrees are formed in the motor stator metal shell 21, plugs 212 are arranged in the inverted-splayed tapered holes 211 with 90 degrees, synthetic glue of the motor stator rubber bushing 23 is injected into a cavity between the motor stator metal shell 21 and a motor rotor mold core, and partial molten glue is injected into the inverted-splayed tapered holes 211 with 90 degrees.
In the present embodiment, six sets of twenty-four 90 ° inverted-splay tapered holes 211 are provided in the motor stator metal housing 21.
Six groups of twenty-four inverted-splayed tapered holes with 90-degree angles are drilled on a metal shell of a motor stator, the inner part is narrow, the outer part is wide, and after the tapered holes are machined, the outer parts of the holes are welded firmly by thin plugs on the shell of the stator. The synthetic rubber which is mixed and can resist oil, acid, CO2, H2S and other various media is injected into a cavity between a motor stator shell and a rotor mold core, part of molten rubber is injected into a taper hole, and the inverted-splayed structure of the taper hole ensures that the synthetic rubber is firmly implanted into a motor stator metal shell, can effectively prevent the synthetic rubber from being influenced by corrosive media and integrally falling off under complex well conditions, enhances the safety of a high-sulfur-content oil-gas well drilling tool motor, and fully ensures that a screw drilling tool is suitable for a sulfur-containing oil-gas field containing various corrosive media.
Claims (2)
1. The utility model provides a special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool, mainly includes: bypass valve assembly (1), hydraulic motor assembly (2), cardan shaft assembly (3) and transmission shaft assembly (4), the lower extreme of bypass valve assembly (1) is connected with hydraulic motor assembly (2), the lower extreme of hydraulic motor assembly (2) is connected with cardan shaft assembly (3), the lower extreme of cardan shaft assembly (3) is connected with transmission shaft assembly (4), its characterized in that: the hydraulic motor assembly (2) comprises: a motor stator metal shell (21), a motor rotor (22) and a motor stator rubber bushing (23) arranged between the motor stator metal shell (21) and the motor rotor (22); the motor stator rubber bushing structure is characterized in that a plurality of 90-degree inverted-splayed tapered holes (211) are formed in the motor stator metal shell (21), plugs (212) are arranged in the 90-degree inverted-splayed tapered holes (211), synthetic rubber of the motor stator rubber bushing (23) is injected into a cavity between the motor stator metal shell (21) and a motor rotor mold core, and partial molten rubber is injected into the 90-degree inverted-splayed tapered holes (211).
2. The special anticorrosive anticreep of high sulphur oil and gas well screw rod drilling tool according to claim 1, characterized in that: six groups of twenty-four inverted-splayed conical holes (211) with 90-degree angles are arranged on the motor stator metal shell (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920389800.5U CN209924908U (en) | 2019-03-26 | 2019-03-26 | Special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920389800.5U CN209924908U (en) | 2019-03-26 | 2019-03-26 | Special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209924908U true CN209924908U (en) | 2020-01-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920389800.5U Expired - Fee Related CN209924908U (en) | 2019-03-26 | 2019-03-26 | Special anticorrosive anticreep of high sulphur oil gas well is glued screw rod drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209924908U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236114A (en) * | 2021-04-29 | 2021-08-10 | 江苏华亚石油机械制造有限公司 | Special high-temperature-resistant high-pressure-resistant corrosion-resistant screw drilling tool for ultra-deep oil and gas reservoir and machining process |
-
2019
- 2019-03-26 CN CN201920389800.5U patent/CN209924908U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236114A (en) * | 2021-04-29 | 2021-08-10 | 江苏华亚石油机械制造有限公司 | Special high-temperature-resistant high-pressure-resistant corrosion-resistant screw drilling tool for ultra-deep oil and gas reservoir and machining process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 Termination date: 20210326 |