CN202348153U - Reducing drilling stabilizer - Google Patents
Reducing drilling stabilizer Download PDFInfo
- Publication number
- CN202348153U CN202348153U CN2011205211693U CN201120521169U CN202348153U CN 202348153 U CN202348153 U CN 202348153U CN 2011205211693 U CN2011205211693 U CN 2011205211693U CN 201120521169 U CN201120521169 U CN 201120521169U CN 202348153 U CN202348153 U CN 202348153U
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- Prior art keywords
- spiral
- stabilizer
- rib
- stablized
- central tube
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Abstract
The utility model discloses a reducing drilling stabilizer, comprising a stabilizer body, spiral stabilization edges and spiral diversion grooves. The spiral stabilization edges and the spiral diversion grooves are arranged at intervals and in parallel and wind around the stabilizer body spirally, and certain included angles are formed between the stabilizer body and the spiral stabilization edges and the spiral diversion grooves; a plurality of telescopic plungers are uniformly distributed along the circumference of the stabilizer body; a control sleeve, a central tube and a spring seat are sequentially arranged in a cavity in the stabilizer body; and a spring I is arranged between the control sleeve and the central tube, and a spring II is arranged between the central tube and the spring seat. According to the stabilizer, as the upper and lower ends of the spiral stabilization edges are designed to be thinner, and the middle parts of the spiral stabilization edges are thicker through smooth transition, friction can be furthest reduced by the stabilizer in the tripping process. As a connection part between each spiral stabilization edge and the stabilizer body is designed to be a smooth arc with a guide function, the contact area between the whole stabilizer and a well wall is reduced, and frictional resistance is reduced, thereby facilitating the passage of the stabilizer through complicated sections.
Description
Technical field
But the utility model relates to the stabilizer of the reducing that uses in a kind of oil drilling directional well, horizontal well and the extended reach well drilling operation, belongs to the downhole tool technical field, but stabilizer is used in the drilling well that relates in particular to a kind of reducing.
Background technology
At present, in the straight well drilling process, drilling tool is crooked under action of gravity; The rotation of drilling well then compel its generation disturb bently be out of shape, beat, phenomenon such as chatter, thereby cause well crooked, the damage of drilling tool premature fatigue; Influence bit speed, harm situation such as bit life shortening take place.In directed drilling and horizontal drilling, drilling rod sinks to leaning on the borehole wall in action of gravity, causes the well track of drilling well difficulty or accurately control to depart from major accidents such as predetermined direction.Therefore, keep drilling rod to stablize the stabilizer placed in the middle drilling well accessory that is absolutely necessary.
The conventional drilling tool stabilizer that uses is a monolithic, and fixed diameter can not change, and generally is less than drill bit 2mm, and mainly there are four shortcomings in it: one, and when making a trip when smooth, situation such as card appear being hampered, meeting easily, and the generation drilling failure; Two,, the diameter wearing and tearing just all scrap after being reduced to a certain degree, increased drilling cost; Three, when the borehole segments that has enlarged is inoperative, can not stablize drilling rod effectively; Four, because adjustment cycle is longer, can make well track demonstrate " fluctuation " formula, can produce additional moment of torsion and resistance, the conventional drilling instrument can't adapt to drilling technology requirements such as directional well or the horizontal well of present complicacy.
The utility model content
The purpose of the utility model is to overcome the deficiency of prior art, but a kind of power of reducing friction is provided, the drilling well that improves the reducing in application life use stabilizer, and can be through adjusting the stabilizer diameter, the purpose of realization Controlling Borehole Trajectory.
The purpose of the utility model realizes through following technical proposals:
But stabilizer is used in a kind of drilling well of reducing; Comprise that stabilizer body, spiral stablize rib and spiral stream guidance groove; Rib stablized by spiral and the spiral stream guidance groove is spaced, and spiral is stablized between rib and the spiral stream guidance groove and is parallel to each other, and twines around stabilizer body spiral; And form an angle with the stabilizer body, said stabilizer body is along circumferentially being evenly equipped with several extension type plungers; Control cover, central tube and spring base are installed in the stabilizer chamber body successively; Between control cover and the central tube spring one is housed, spring two is housed between central tube and the spring base.
In order to realize the utility model better, it is that two ends are thin, thick middle that said spiral is stablized rib thickness, and two ends seamlessly transit outside standing shape in the middle of being to the centre.
Further, the said spiral quantity of stablizing rib and spiral stream guidance groove is two or more.
As preferably, said spiral is stablized and is had some through holes on the rib, and said extension type plunger correspondence is installed in this through hole.
As preferably, said spiral is stablized the rib external surface and is provided with wearing layer.
The utility model is compared than prior art, has the following advantages and beneficial effect:
The spiral of this stabilizer is stablized rib and is designed to that up and down two ends are thinner, and is thicker in the middle of being smoothly transitted into, outside standing shape in the middle of being, the stabilizer power of in going down process, farthest reducing friction.And spiral is stablized the level and smooth circular arc design of rib and stabilizer body junction and is had import feature, has reduced the contact area of the whole stabilizer and the borehole wall, has reduced frictional resistance, helps through complicated well section, has improved the trafficability characteristic and the operating efficiency of drill string string.
In addition, the utlity model has advantages such as simple in structure, easy to operate, reliable operation, extension type plunger on the stabilizer body is stretched out or regain, realize the purpose of stabilizer reducing.
Stablize at spiral and to be provided with the several layers wearing layer on the rib, in the application life of having improved this stabilizer widely, improve drilling quality.
Description of drawings
Fig. 1 is the perspective view of the utility model;
Fig. 2 is the sectional structure sketch map of the utility model.
Wherein, the pairing name of the Reference numeral in the accompanying drawing is called:
1-stabilizer body, 2-controls cover, the 3-central tube, 4-spring one, 5-spring two, 6-extension type plunger, the 7-spring base, the 8-spiral is stablized rib, 9-spiral stream guidance groove.
The specific embodiment
Below in conjunction with embodiment the utility model is done to specify further:
Like Fig. 1～shown in Figure 2, but stabilizer is used in a kind of drilling well of reducing, comprises that stabilizer body 1, spiral stablize rib 8 and spiral stream guidance groove 9; Spiral is stablized rib 8 and is spaced with spiral stream guidance groove 9; Spiral is stablized between rib 8 and the spiral stream guidance groove 9 and is parallel to each other, and twines around stabilizer body 1 spiral, and forms an angle with stabilizer body 1; This angle is 10～60 degree, and the angle that the spiral of present embodiment is stablized rib 8 and spiral stream guidance groove 9 and stabilizer body 1 is 20 degree.It is that two ends are thin, thick middle that spiral is stablized rib 8 thickness, and two ends seamlessly transit outside standing shape in the middle of being to the centre.The quantity that spiral is stablized rib 8 and spiral stream guidance groove 9 is two or more, and the quantity that the spiral of present embodiment is stablized rib 8 is six, and the quantity of spiral stream guidance groove 9 is five.In order to improve the application life of stabilizer, the spiral of present embodiment is stablized rib 8 external surfaces and also is provided with wearing layer.
Control cover 2, central tube 3 and spring base 7 are installed in stabilizer body 1 inner chamber successively.Between control cover 2 and the central tube 3 spring 1 is housed, between central tube 3 and the spring base 7 spring 25 is housed.The upper surface sectional area of control cover 2 is greater than the lower surface sectional area.
The operating principle of the utility model is:
During turn on pump work, the stabilizer running, control cover 2 moves downward under the mud pressure effect.When in short stroke, control cover 2 compression springs 1, but it is descending to promote central tube 3, and extension type plunger 6 does not stretch out at this moment, and stabilizer is in the minor diameter state.When controlling cover 2 in the length conduct, control cover 2 compresses springs 1, and it is descending to promote central tube 3 simultaneously; Under the promotion of central tube 3, extension type plunger 6 stretches out, and spring 25 is compressed under the pressure effect of central tube 3; This moment, stabilizer was in the major diameter state, reached the purpose of reducing.
After the termination of pumping, the pressure that mud acts on the control cover 2 disappears, and spring 25 resets central tube 5, and extension type plunger 6 resets, and stabilizer recovers the minor diameter state.
Embodiment 2
Like Fig. 1～shown in Figure 2; But stabilizer is used in a kind of drilling well of reducing, comprises that stabilizer body 1, spiral stablize rib 8 and spiral stream guidance groove 9, and spiral is stablized rib 8 and is spaced with spiral stream guidance groove 9; Spiral is stablized between rib 8 and the spiral stream guidance groove 9 and is parallel to each other; And twine around stabilizer body 1 spiral, and form an angle with stabilizer body 1, the angle that the spiral of present embodiment is stablized rib 8 and spiral stream guidance groove 9 and stabilizer body 1 is 60 degree.It is that two ends are thin, thick middle that spiral is stablized rib 8 thickness, and two ends seamlessly transit outside standing shape in the middle of being to the centre.The quantity that the spiral of present embodiment is stablized rib 8 is three, and the quantity of spiral stream guidance groove 9 is two.In order to improve the application life of stabilizer, the spiral of present embodiment is stablized rib 8 external surfaces and also is provided with wearing layer.
Control cover 2, central tube 3 and spring base 7 are installed in stabilizer body 1 inner chamber successively.Between central tube 3 and the spring base 7 spring 25 is housed.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. but stabilizer is used in the drilling well of a reducing; Comprise that stabilizer body (1), spiral stablize rib (8) and spiral stream guidance groove (9); Rib (8) stablized by spiral and spiral stream guidance groove (9) is spaced, and spiral is stablized between rib (8) and the spiral stream guidance groove (9) and is parallel to each other, and twines around stabilizer body (1) spiral; And form an angle with stabilizer body (1), it is characterized in that: said stabilizer body (1) is along circumferentially being evenly equipped with several extension type plungers (6); Control cover (2), central tube (3) and spring base (7) are installed in stabilizer body (1) inner chamber successively; Between control cover (2) and the central tube (3) spring one (4) is housed, between central tube (3) and the spring base (7) spring two (5) is housed.
2. but use stabilizer according to the drilling well of the described reducing of claim 1, it is characterized in that: it is that two ends are thin, thick middle that said spiral is stablized rib (8) thickness, and two ends seamlessly transit outside standing shape in the middle of being to the centre.
3. but use stabilizer according to the drilling well of claim 1 or 2 described reducings, it is characterized in that: the quantity that said spiral is stablized rib (8) and spiral stream guidance groove (9) is two or more.
4. but use stabilizer according to the drilling well of the described reducing of claim 3, it is characterized in that: said spiral is stablized on the rib (8) and is had some through holes, and said extension type plunger (6) correspondence is installed in this through hole.
5. but use stabilizer according to the drilling well of the described reducing of claim 4, it is characterized in that: said spiral is stablized rib (8) external surface and is provided with wearing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205211693U CN202348153U (en) | 2011-12-14 | 2011-12-14 | Reducing drilling stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205211693U CN202348153U (en) | 2011-12-14 | 2011-12-14 | Reducing drilling stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348153U true CN202348153U (en) | 2012-07-25 |
Family
ID=46537162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205211693U Expired - Fee Related CN202348153U (en) | 2011-12-14 | 2011-12-14 | Reducing drilling stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348153U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747097A (en) * | 2013-12-31 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Hydraulic diameter-variable stabilizer capable of changing more than three diameters and diameter-variable method |
| CN111426496A (en) * | 2020-04-05 | 2020-07-17 | 新疆正通石油天然气股份有限公司 | Buckling pipe column drilling simulation device in reducing well |
-
2011
- 2011-12-14 CN CN2011205211693U patent/CN202348153U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747097A (en) * | 2013-12-31 | 2015-07-01 | 贵州高峰石油机械股份有限公司 | Hydraulic diameter-variable stabilizer capable of changing more than three diameters and diameter-variable method |
| CN104747097B (en) * | 2013-12-31 | 2017-04-12 | 贵州高峰石油机械股份有限公司 | Hydraulic diameter-variable stabilizer capable of changing more than three diameters and diameter-variable method |
| CN111426496A (en) * | 2020-04-05 | 2020-07-17 | 新疆正通石油天然气股份有限公司 | Buckling pipe column drilling simulation device in reducing well |
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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 |
Granted publication date: 20120725 Termination date: 20161214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |