CN101906932A - Non-magnetic screw drill tool - Google Patents
Non-magnetic screw drill tool Download PDFInfo
- Publication number
- CN101906932A CN101906932A CN2010102594025A CN201010259402A CN101906932A CN 101906932 A CN101906932 A CN 101906932A CN 2010102594025 A CN2010102594025 A CN 2010102594025A CN 201010259402 A CN201010259402 A CN 201010259402A CN 101906932 A CN101906932 A CN 101906932A
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- shaft assembly
- assembly
- universal shaft
- motor
- drill tool
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Abstract
The invention relates to a drill tool, in particular to a non-magnetic screw drill tool, mainly comprising a motor assembly, a universal shaft assembly, a transmission shaft assembly, a substitute joint, a beryllium bronze motor rotor and a universal shaft casing, wherein the motor assembly, the universal shaft assembly and the transmission shaft assembly are arranged on the same axis and are sequentially connected mutually; the substitute joint is made of a beryllium bronze; the beryllium bronze motor rotor and the universal shaft casing are in threaded connection and mutually and fixedly connected; and the universal shaft casing is internally provided with a pin roller type sealing universal shaft assembly which is connected with the beryllium bronze motor rotor in the universal shaft casing and is connected with the transmission shaft assembly formed by a hard alloy thrust bearing. The invention has the benefits that the substitute joint and the stator and the rotor in the motor assembly are made of the beryllium bronze, thereby solving the problem that the traditional finished screw drill tool has ferromagnetism so as to influence a logging instrument; in addition, the invention avoids the use of a non-magnetic drill collar or joint, so that the drill tool reduces the error of a measuring point and the position of a drill bit and improves the accuracy of the measurement.
Description
Technical field
The present invention relates to a kind of drilling tool, relate in particular to a kind of non-magnetic screw drill tool.
Background technology
At present, helicoid hydraulic motor is a kind of mud motor that is widely used in oil drilling or well workover.Measurement operation in the drilling process is to use logger to measure hole deviation, and parameters such as well depth, these parameters are exactly the track that drill bit bores, i.e. well track.Because all Magnetic Measurement instruments are when measuring the direction of well, induction be the big earth's magnetic field of well, thereby measuring apparatus also must be a no magnetic environment.Yet in drilling process, what the raw material of the structure of helicoid hydraulic motor integral body used is alloy steel, under influence of geomagnetic, easily be magnetized, logger in the measuring process is subject to the interference of helicoid hydraulic motor magnetic that complete machine has, and then influence the certainty of measurement of logger, can not obtain correct well track metrical information data, at present, all be to utilize non magnetic drill collar to create a no magnetic environment in the drilling well field for measuring apparatus, non magnetic drill collar generally is by having uncorruptible alloy composition, as chromium-nickel alloy, chromium-manganese alloy etc., only need above the screw rod of drilling tool, to add one or more non magnetic drill collar or joint, logger is put into wherein, can avoid the interference of earth magnetism, but, because the non magnetic drill collar joint length reaches about 9.8m, increase one or more non magnetic drill collar, the measuring position of logger and the distance between the drill bit are increased, directly influence the accuracy that drilling well hits, especially in the drillng operation of the thin block of section radius well and oil-gas Layer, inevitable difficult problem especially, petal universal drive shaft in addition, the on-line operation of string bearing friction face is in mud, the helicoid hydraulic motor working life can not satisfy on-the-spot requirement, and execute-in-place is improper often to cause damaging in advance drill bit.
Summary of the invention
The technical problem to be solved in the present invention is directly logger to be put into screw drill, can not guarantee that also logger avoids the non-magnetic screw drill tool of magnetic interference and do not need additionally to assemble non magnetic drill collar.
For realizing purpose of the present invention, the technical scheme that is adopted is: a kind of non-magnetic screw drill tool, mainly by the joint that substitutes consecutively connected to each other on same axis, motor assembly, the universal drive shaft assembly, driving-shaft assembly constitutes, it is characterized in that: also comprise the beryllium-bronze motor stator that substitutes joint and be solidly connected with each other and the universal drive shaft housing that adopt the beryllium-bronze material by being threaded, the roller sealing universal drive shaft assembly that links to each other with beryllium-bronze rotor in the motor assembly is housed in the described universal drive shaft housing, and described roller sealing universal drive shaft assembly links to each other with the driving-shaft assembly that the carbide alloy thrust bearing constitutes.
Beneficial effect of the present invention:
1, owing to substitute stator in joint, the motor assembly and the material of rotor is the beryllium-bronze material, therefore solved the problem that former helicoid hydraulic motor complete machine ferromagnetism is disturbed logger; 2, owing to avoid using non magnetic drill collar or joint, make drilling tool reduce the error of survey mark and bit location, improved the accuracy of measuring.3, roller sealing universal drive shaft, its rubbing surface is operated in the grease, and the carbide alloy thrust bearing is more wear-resisting, has improved the life-span of using of drilling tool significantly.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples to the detailed description of the invention.
Referring to Fig. 1, a kind of non-magnetic screw drill tool, mainly by motor assembly 2 consecutively connected to each other on same axis, universal drive shaft assembly 4, driving-shaft assembly 5 constitutes, also comprise and adopt substituting joint 1 and connecting beryllium-bronze motor stator and the universal drive shaft housing 3 that is solidly connected with each other of beryllium-bronze material by screw thread 6, the roller sealing universal drive shaft assembly 4 that links to each other with beryllium-bronze rotor in the motor assembly 2 is housed in the described universal drive shaft housing 3, described roller sealing universal drive shaft assembly 4 links to each other with the driving-shaft assembly 5 that the carbide alloy thrust bearing constitutes, described carbide alloy thrust bearing is the wolfram steel material, can directly logger be installed in the screw rod top during use, because screw rod itself does not have magnetic, the screw rod top can be directly logger be installed in during use, non magnetic drill collar need not be disposed again.
Be the beryllium-bronze material owing to substitute the stator in joint, the motor assembly and the material of rotor, therefore solved the problem that former helicoid hydraulic motor complete machine ferromagnetism is disturbed logger; Avoid using non magnetic drill collar or joint, make drilling tool reduce the error of survey mark and bit location, improved the accuracy of measuring; Roller sealing universal drive shaft, its rubbing surface is operated in the grease, and the carbide alloy thrust bearing is more wear-resisting, has improved the life-span of using of drilling tool significantly.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. non-magnetic screw drill tool, mainly constitute by motor assembly consecutively connected to each other on same axis, universal drive shaft assembly, driving-shaft assembly, it is characterized in that: also comprise the beryllium-bronze motor stator that substitutes joint and be solidly connected with each other and the universal drive shaft housing that adopt the beryllium-bronze material by being threaded, the roller sealing universal drive shaft assembly that links to each other with beryllium-bronze rotor in the motor assembly is housed in the described universal drive shaft housing, and described roller sealing universal drive shaft assembly links to each other with the driving-shaft assembly that the carbide alloy thrust bearing constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102594025A CN101906932A (en) | 2010-08-23 | 2010-08-23 | Non-magnetic screw drill tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102594025A CN101906932A (en) | 2010-08-23 | 2010-08-23 | Non-magnetic screw drill tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101906932A true CN101906932A (en) | 2010-12-08 |
Family
ID=43262499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102594025A Pending CN101906932A (en) | 2010-08-23 | 2010-08-23 | Non-magnetic screw drill tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101906932A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781542A (en) * | 2016-04-29 | 2016-07-20 | 天津立林石油机械有限公司 | Non-magnetic motor |
| CN105952372A (en) * | 2016-06-30 | 2016-09-21 | 天津立林石油机械有限公司 | Spiral non-magnetic screw rod drilling tool |
-
2010
- 2010-08-23 CN CN2010102594025A patent/CN101906932A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781542A (en) * | 2016-04-29 | 2016-07-20 | 天津立林石油机械有限公司 | Non-magnetic motor |
| CN105952372A (en) * | 2016-06-30 | 2016-09-21 | 天津立林石油机械有限公司 | Spiral non-magnetic screw rod drilling tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101208 |