CN203114203U - Novel drilling tool stabilizer - Google Patents
Novel drilling tool stabilizer Download PDFInfo
- Publication number
- CN203114203U CN203114203U CN 201320157676 CN201320157676U CN203114203U CN 203114203 U CN203114203 U CN 203114203U CN 201320157676 CN201320157676 CN 201320157676 CN 201320157676 U CN201320157676 U CN 201320157676U CN 203114203 U CN203114203 U CN 203114203U
- Authority
- CN
- China
- Prior art keywords
- top connection
- centering
- positive cover
- external diameter
- stabilizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a novel drilling tool stabilizer which comprises an upper connector, a centering sleeve and a lower connector, wherein the upper connector and the lower connector are connected in a threaded mode. The external diameter of the centering sleeve is bigger than that of the lower connector. Vertical long strip-shaped grooves are symmetrically machined in the outer wall of the centering sleeve, and retaining grooves are formed in the upper end faces of the long strip-shaped grooves upwards. Arc-shaped elastic centering strips are fixed in the long strip-shaped grooves of the centering sleeve through pins, and free ends of the arc-shaped elastic centering strips are inserted into the retaining grooves. The centering sleeve is sleeved on the lower section of the upper connector in a connecting mode, and can rotate around the upper connector. The arc-shaped elastic centering strips are fixed on the centering sleeve of the stabilizer, and the diameters of the arc-shaped elastic centering strips can change along with the change of the diameter of a well so as to reduce torque generated at the stabilizer due to the irregular diameter of the well. Therefore, the centering effects of the stabilizer of an irregular borehole are enhanced, and deviation preventing capacity of gas drilling is enhanced.
Description
Technical field
The utility model relates to the drilling tool stabilizer that a kind of oil field gas drilling is used.
Background technology
When adopting the gas drilling technology on the oil field, because the gas drilling borehole wall stability is poor, the stratum amplification degree that has is bigger, the stratum that has is because the stratum water outlet may cause undergauge, if adopt conventional drilling tool stabilizer, the moment of torsion during borehole wall necking down is bigger, easily cause bit freezing, set upright weak effect when the borehole wall enlarges, anti-oblique effect is bad, very easily causes down-hole accident.
Summary of the invention
The purpose of this utility model provides a kind of novel drilling tool stabilizer, and this stabilizer can be adjusted according to the specification of borehole wall diameter, have good set upright, anti-oblique effect.
In order to realize the foregoing invention purpose, the technical solution adopted in the utility model is: a kind of novel drilling tool stabilizer, comprise top connection, supporting positive cover and lower contact, described top connection is cylindric, be divided into two sections, wherein the epimere external diameter of top connection is big, and the hypomere external diameter is little, the epimere of top connection equates that with the external diameter of lower contact the lower end of top connection is threaded with lower contact; Described supporting positive cover is cylindric, its external diameter is greater than the external diameter of lower contact, and be processed with some vertical strip grooves at its outer wall, above-mentioned strip groove is symmetrically distributed in twos, the upper surface of strip groove upwards also has retaining groove, the fixing arc elasticity righting strip of pin in the strip groove of supporting positive cover, the free end of arc elasticity righting strip is inserted in the retaining groove; Above-mentioned supporting positive cover is socketed in the hypomere of top connection, between the upper surface of supporting positive cover and the contact surface of top connection and between the contact surface of the lower surface of supporting positive cover and lower contact seal is set respectively.
Beneficial effect: be socketed with rotating supporting positive cover in the top connection of this novel drilling tool stabilizer, fix flexible arc righting strip on the supporting positive cover, its diameter can change to a certain extent with well radius variations, well has certain undergauge also can pass through, well has certain expansion, also can play and set upright effect, said structure can reduce the moment of torsion that produces at the stabilizer place because hole diameter is irregular, can also strengthen the effect of setting upright of irregular borehole stabilizer, strengthen the anti-oblique ability of gas drilling, reduce down-hole accident, simple in structure, applicability is strong.
Description of drawings
Fig. 1 is the structural representation of the utility model drilling tool stabilizer.
Fig. 2 be among Fig. 1 A-A to sectional view.
Among the figure: top connection-1, supporting positive cover-2, arc elasticity righting strip-3, pin-4, lower contact-5.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described:
By shown in Figure 1: this novel drilling tool stabilizer, comprise top connection 1, supporting positive cover 2 and lower contact 5, described top connection 1 is cylindrical tube shape, difference according to external diameter is divided into two sections, wherein the epimere external diameter of top connection 1 is big, the hypomere external diameter is little, and the epimere of top connection 1 equates with the external diameter of lower contact 5, and the lower end of top connection 1 and lower contact 5 are by being threaded; Described supporting positive cover 2 is cylindrical tube shape, and its external diameter is greater than the external diameter of lower contact 5, and is processed with some vertical strip grooves at its outer wall, and above-mentioned strip groove is symmetrically distributed in twos, and the upper surface of strip groove upwards also has retaining groove; At the groove bottom of supporting positive cover 2 fixedly arc elasticity righting strip 3 of pin 4, the free end of arc elasticity righting strip 3 is inserted in the retaining groove; Described supporting positive cover 2 is socketed in the hypomere of top connection 1, the upper and lower end face of supporting positive cover 2 respectively with the sealing of the contact surface of top connection and lower contact, supporting positive cover 2 can rotate around top connection 1, can reduce the wearing and tearing of supporting positive cover 2 with top connection 1 contact portion like this, has also reduced the moment of torsion that creeps into.Because arc elasticity righting strip 3 is elastomeric elements, can regulate automatically according to the vary in diameter of well and make it to be in the state of meeting the eye on every side, improve and set upright effect, strengthen the anti-oblique ability of gas drilling.
Claims (1)
1. novel drilling tool stabilizer, comprise top connection, supporting positive cover and lower contact, it is characterized in that: described top connection is cylindric, be divided into two sections, wherein the epimere external diameter of top connection is big, the hypomere external diameter is little, and the epimere of top connection equates that with the external diameter of lower contact the lower end of top connection is threaded with lower contact; Described supporting positive cover is cylindric, its external diameter is greater than the external diameter of lower contact, and be processed with some vertical strip grooves at its outer wall, above-mentioned strip groove is symmetrically distributed in twos, the upper surface of strip groove upwards also has retaining groove, the fixing arc elasticity righting strip of pin in the strip groove of supporting positive cover, the free end of arc elasticity righting strip is inserted in the retaining groove; Above-mentioned supporting positive cover is socketed in the hypomere of top connection, between the upper surface of supporting positive cover and the contact surface of top connection and between the contact surface of the lower surface of supporting positive cover and lower contact seal is set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157676 CN203114203U (en) | 2013-04-01 | 2013-04-01 | Novel drilling tool stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157676 CN203114203U (en) | 2013-04-01 | 2013-04-01 | Novel drilling tool stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114203U true CN203114203U (en) | 2013-08-07 |
Family
ID=48894563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320157676 Expired - Fee Related CN203114203U (en) | 2013-04-01 | 2013-04-01 | Novel drilling tool stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114203U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104373041A (en) * | 2014-09-11 | 2015-02-25 | 中铁十六局集团第五工程有限公司 | Drilling deviation rectification method for 60-meter-long hole drilling of tunnel large pipe shed |
| CN105332660A (en) * | 2014-08-13 | 2016-02-17 | 盐城市华谊石油机械有限公司 | Scraping and centralizing stabilizer |
-
2013
- 2013-04-01 CN CN 201320157676 patent/CN203114203U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332660A (en) * | 2014-08-13 | 2016-02-17 | 盐城市华谊石油机械有限公司 | Scraping and centralizing stabilizer |
| CN105332660B (en) * | 2014-08-13 | 2019-02-05 | 盐城市华谊石油机械有限公司 | A kind of scraping righting stabilizer |
| CN104373041A (en) * | 2014-09-11 | 2015-02-25 | 中铁十六局集团第五工程有限公司 | Drilling deviation rectification method for 60-meter-long hole drilling of tunnel large pipe shed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20130807 Termination date: 20160401 |