CN202401968U - Hydraulic spring roller wheel stabilizer - Google Patents
Hydraulic spring roller wheel stabilizer Download PDFInfo
- Publication number
- CN202401968U CN202401968U CN2011205199757U CN201120519975U CN202401968U CN 202401968 U CN202401968 U CN 202401968U CN 2011205199757 U CN2011205199757 U CN 2011205199757U CN 201120519975 U CN201120519975 U CN 201120519975U CN 202401968 U CN202401968 U CN 202401968U
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- China
- Prior art keywords
- rotary sleeve
- wheels
- stabilizer
- pack support
- rotary
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Abstract
The utility model relates to a hydraulic spring roller wheel stabilizer which is characterized by comprising a non-rotating housing of a rotating navigation drilling tool and a non-rotating housing outer wall, wherein three stabilizer wheel group assemblies are uniformly arranged in the circumferential direction of the non-rotating housing outer wall; each stabilizer wheel group assembly comprises a wheel group support and two pistons; the wheel group support is arranged in a groove in the non-rotating housing, and each piston is arranged between the bottom of the wheel group support and the groove in the non-rotating housing; two ends of the wheel group support are radially supported on the non-rotating housing outer wall by a spring fixed on the non-rotating housing, and two ends of the non-rotating housing outer wall are respectively provided with limiting blocks for limiting the radial displacement of the spring; and three wheel groups are arranged on the wheel group support at intervals. The hydraulic spring roller wheel stabilizer provided by the utility model is simple and convenient for installation, does not cause a borehole enlargement phenomenon, can effectively stabilize the tool surface of a navigation tool, and can be widely applied to rotating navigation drilling.
Description
Technical field
The utility model relates to a kind of spring roller stabilizer, particularly about a kind of not hydraulic spring grease cup roller stabilizer of rotary sleeve formula guide drilling tool that is used for.
Background technology
The rotary steerable drilling technology is to occur the eighties in 20th century, and an oil drilling new technology that grows up the nineties is compared with traditional slide-and-guide drilling well; It is high to have the hole trajectory control precision, and the well that gets out is slick and sly, and frictional resistance, moment of torsion are little; The drilling well extreme displacement is big, and down-hole accident is few, and bit speed is fast; Therefore advantages such as drilling cost is low can satisfy horizontal well, extended reach well, three highly difficult special well steerable drilling demands such as multi target well.
Rotary steering drilling tool mainly can be divided into modulation system rotary steering drilling tool and rotary sleeve formula rotary steering drilling tool not.The tool-face of rotary sleeve formula rotary steering drilling tool is not that benchmark is controlled with rotary sleeve not; Therefore in the steerable drilling engineering; Rotary sleeve need not keep static with respect to the borehole wall, so that keep the tool-face of rotary steerable tool stable, realizes the control of well track.At present; A kind of non-rotating outer liner stabilizing device of rotating guide drilling tool is arranged; It is by 3～4 cover stabilizer wheels assemblies that are evenly arranged on the rotary sleeve outer wall not, and every cover stabilizer wheels assembly is provided with a wheel pack support, and the wheel pack support is provided with 3～4 groups of wheels of being made up of roller; Roller is higher than the wheel pack support, the rolling to the rotary sleeve moving direction is not consistent of roller.This device has prevented the not rotation of rotary sleeve on principle, stablized the tool-face of rotary steering drilling tool.But rotary sleeve stabilising arrangement stabilizing tool face effect is not unsatisfactory to draw this through the test of repeatedly going into the well repeatedly; Draw this patent of invention through field trial and have following two deficiencies: 1, because wheels are in radially high-end trim under spring action always, cause rotary steerable tool last put to let slip cause hole diameter to enlarge in the journey easily.2, put last that to let slip in the journey resistance excessive in order to prevent, the coefficient of elasticity that spring is set is limited, and it is less to cause wheels on the stabilizer to paste borehole wall power, and effect is not clearly to the stabilizing tool face.
Summary of the invention
To the problems referred to above, the purpose of the utility model provides a kind of simple and convenient, as effectively to avoid enlarging hole diameter hydraulic spring grease cup roller stabilizer of installing.
For realizing above-mentioned purpose; The utility model is taked following technical scheme: a kind of hydraulic spring grease cup roller stabilizer; It is characterized in that: it comprises the not rotary sleeve of rotary steering drilling tool and rotary sleeve outer wall not, and said not rotary sleeve outer wall circumferentially evenly is provided with three cover stabilizer wheels assemblies; The said stabilizer wheels of every cover assembly includes a wheel pack support and two pistons, and the said pack support of taking turns is arranged in the groove on the said not rotary sleeve, and each said piston all is arranged between the groove of said wheels frame bottom and said not rotary sleeve; The said pack support two ends of taking turns are through being fixed on spring radial support on the said not rotary sleeve on said not rotary sleeve outer wall, be provided with respectively on the said not rotary sleeve outer wall two ends one be used to limit said spring radial displacement limited block; The said wheel also is arranged at intervals with three groups of wheels on the pack support.
Every group of said wheels include a roller bearing and are located in the four rolling on the said roller bearing, and said four rolling is arranged symmetrically in the said pack support both sides of taking turns, and is installed in said the wheel in the pack support; Said roller bearing two ends pass said two side of taking turns pack support, and are inserted into respectively in the guide pad that is arranged in the said not rotary sleeve upper groove.
The outer rim equivalence external diameter of each said wheels is slightly larger than the rotary steerable tool external diameter.
The outer face of each said piston embeds said interior blind hole of taking turns pack support; The side of each said piston is tightly connected through sealing ring and said not rotary sleeve, and via through holes is communicated with between the centre bore in the inner chamber of each said piston and the rotary steerable tool main shaft.
The utility model is owing to take above technical scheme; It has the following advantages: 1, the utility model is owing to adopt three cover stabilizer wheels assemblies; Every cover stabilizer wheels assembly is along not circumferentially evenly setting of rotary sleeve outer wall; Only need on rotary sleeve not, offer several grooves in advance and can divide into groups to install, simple and convenient.2, the utility model is taken turns at each and all is arranged at intervals with three groups of wheels on the pack support; Wheel pack support two ends are through being fixed on spring radial support on the rotary sleeve not on rotary sleeve outer wall not; Each wheels both can support the not radial motion of rotary sleeve of lower edge in effect of internal hydraulic pressure power and spring, again can be with rotary sleeve is not mobile on the borehole axis direction.3, on rotary sleeve outer wall not, and the spring outer end limit by two limited blocks, makes it can slippage not go out not rotary sleeve again in that rotary sleeve is directly upwards not mobile by the spring radial support in the end, two ends of the utility model wheel pack support.4, the utility model since every group of wheels form by roller bearing and the four rolling that is located on the roller bearing; The roller direction of wheels is with the rotary sleeve moving direction is not consistent; After roller bearing passed the wheels rack side wall, two ends were inserted into respectively in the guide pad that is arranged in the rotary sleeve outer wall groove not, were directed to the piece guiding; Wheels, roller bearing, guide pad all can also can move along the borehole axis direction with the radial motion of wheel pack support together like this.5, the utility model only is slightly larger than the rotary steerable tool external diameter because the outer rim equivalence external diameter of each wheels is less, therefore, can not hinder the normal round trip of rotary steering drilling tool, the phenomenon that also can not cause well to enlarge.6, the utility model adopts wheels when work, can closely contact with the borehole wall, makes stabilizer wheels assembly not rotate with the rotary steerable tool main shaft, thereby prevents the not rotation of rotary sleeve, has stablized the tool-face of rotary steering drilling tool.The utility model can extensively be used in rotary steerable drilling.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is carried out detailed description.
Like Fig. 1～shown in Figure 3, the utility model comprises the not rotary sleeve 1 of rotary steering drilling tool and rotary sleeve outer wall 2 not, circumferentially evenly is provided with three cover stabilizer wheels assemblies at rotary sleeve outer wall 2 not.Every cover stabilizer wheels assembly includes wheel pack support 3 and two pistons 4, and wheel pack support 3 is arranged in the groove of offering in advance on the rotary sleeve 1 not, and each piston 4 all is arranged on takes turns pack support 3 bottoms and not between the groove of rotary sleeve 1.Wheel pack support 3 two ends are through being fixed on spring 5 radial support on the rotary sleeve 1 not on rotary sleeve outer wall 2 not, be not provided with respectively on rotary sleeve outer wall 2 two ends one be used for restraining spring 5 radial displacements limited block 6.Wheel pack support 3 is taken turns pack support 3 medial surfaces and is contacted with groove floor on the rotary sleeve 1 not in two ends spring 5 effect down.Also be arranged at intervals with three groups of wheels 7 (as shown in Figure 2) on the wheel pack support 3; Rolling of three groups of wheels 7 to consistent with the moving direction of rotary sleeve 1 not; The outer rim equivalence external diameter of each wheels 7 is less, only is slightly larger than the rotary steerable tool external diameter, and do not influence rotary steerable tool and normally make a trip this moment.
As shown in Figure 3, the outer face of each piston 4 embeds the interior blind hole of wheel pack support 3, and the side of each piston 4 is tightly connected through sealing ring 8 and rotary sleeve 1 not, and via through holes 10 is communicated with between the interior centre bore of the inner chamber of each piston 4 and rotary steerable tool main shaft 9.
As shown in Figure 2, every group of wheels 7 include a roller bearing 11 and are located in the four rolling 12 on the roller bearing 11, and four rolling 12 is arranged symmetrically in wheel pack support 3 both sides, and is installed in the wheel pack support 3, and each roller 12 can be around roller bearing 11 rotations; Roller bearing 11 two ends pass the two side of wheel pack support 3; And be inserted into respectively in the guide pad 13 that is arranged in rotary sleeve 1 upper groove not; Roller bearing 11 can play the guiding role to wheel pack support 3 again with taking turns not radially sliding of rotary sleeve 1 of pack support 3 edges simultaneously.Wherein, the wheel rim of each roller 12 is all a little more than wheel pack support 3.
In sum, the utility model in use, in the drilling process; Circulation high-pressure slurries in the rotary steerable tool main shaft 9 form pressure differential with rotary sleeve 1 external environment condition not in the rotary steerable tool main shaft 9, and high-pressure slurry gets into piston 4 inner chambers; Driven plunger 4 outwards moves, and driven wheel pack support 3 outwards moves with wheels 7 together, and wheels 7 closely contact with the borehole wall; Make stabilizer wheels assembly not rotate with rotary steerable tool main shaft 9; Thereby prevent the not rotation of rotary sleeve 1, stablized the tool-face of rotary steering drilling tool, make hydraulic thrust bigger.When stopping drilling well; Be in the process of making a trip; Do not have high-pressure slurry to pass through in the rotary steerable tool main shaft 9, do not have pressure differential with rotary sleeve 1 external environment condition not in the rotary steerable tool main shaft 9, wheel pack support 3 moves inward under end spring 5 effects; Wheels 7 do not contact with the borehole wall, and stabilizer wheels assembly can be rotated with rotary steerable tool main shaft 9.In addition,, can not hinder the normal round trip of rotary steering drilling tool, the phenomenon that yet can not cause well to enlarge because wheels 7 external diameters only are slightly larger than the rotary steerable tool external diameter.
Above-mentioned each embodiment only is used to explain the utility model; The structure of each parts and connected mode all can change to some extent; On the basis of the utility model technical scheme; All improvement and equivalents of the connection and the structure of individual component being carried out according to the utility model principle all should not got rid of outside the protection domain of the utility model.
Claims (5)
1. hydraulic spring grease cup roller stabilizer is characterized in that: it comprises the not rotary sleeve of rotary steering drilling tool and rotary sleeve outer wall not, and said not rotary sleeve outer wall circumferentially evenly is provided with three cover stabilizer wheels assemblies; The said stabilizer wheels of every cover assembly includes a wheel pack support and two pistons, and the said pack support of taking turns is arranged in the groove on the said not rotary sleeve, and each said piston all is arranged between the groove of said wheels frame bottom and said not rotary sleeve; The said pack support two ends of taking turns are through being fixed on spring radial support on the said not rotary sleeve on said not rotary sleeve outer wall, be provided with respectively on the said not rotary sleeve outer wall two ends one be used to limit said spring radial displacement limited block; The said wheel also is arranged at intervals with three groups of wheels on the pack support.
2. hydraulic spring grease cup roller stabilizer as claimed in claim 1; It is characterized in that: every group of said wheels include a roller bearing and are located in the four rolling on the said roller bearing; Said four rolling is arranged symmetrically in the said pack support both sides of taking turns, and is installed in said the wheel in the pack support; Said roller bearing two ends pass said two side of taking turns pack support, and are inserted into respectively in the guide pad that is arranged in the said not rotary sleeve upper groove.
3. hydraulic spring grease cup roller stabilizer as claimed in claim 1 is characterized in that: the outer rim equivalence external diameter of each said wheels is slightly larger than the rotary steerable tool external diameter.
4. hydraulic spring grease cup roller stabilizer as claimed in claim 2 is characterized in that: the outer rim equivalence external diameter of each said wheels is slightly larger than the rotary steerable tool external diameter.
5. like claim 1 or 2 or 3 or 4 described hydraulic spring grease cup roller stabilizers; It is characterized in that: the outer face of each said piston embeds said interior blind hole of taking turns pack support; The side of each said piston is tightly connected through sealing ring and said not rotary sleeve, and via through holes is communicated with between the centre bore in the inner chamber of each said piston and the rotary steerable tool main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205199757U CN202401968U (en) | 2011-12-13 | 2011-12-13 | Hydraulic spring roller wheel stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205199757U CN202401968U (en) | 2011-12-13 | 2011-12-13 | Hydraulic spring roller wheel stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202401968U true CN202401968U (en) | 2012-08-29 |
Family
ID=46699619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205199757U Expired - Lifetime CN202401968U (en) | 2011-12-13 | 2011-12-13 | Hydraulic spring roller wheel stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202401968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835649A (en) * | 2014-04-01 | 2014-06-04 | 中国石油大学(华东) | Well drilling device capable of reinforcing well wall |
-
2011
- 2011-12-13 CN CN2011205199757U patent/CN202401968U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835649A (en) * | 2014-04-01 | 2014-06-04 | 中国石油大学(华东) | Well drilling device capable of reinforcing well wall |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |