CN2413011Y - Floating rotor turbne mud motor - Google Patents
Floating rotor turbne mud motor Download PDFInfo
- Publication number
- CN2413011Y CN2413011Y CN00229125.8U CN00229125U CN2413011Y CN 2413011 Y CN2413011 Y CN 2413011Y CN 00229125 U CN00229125 U CN 00229125U CN 2413011 Y CN2413011 Y CN 2413011Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- turbine
- stator
- face
- mud motor
- 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
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract 5
- 238000005553 drilling Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
本实用新型涉及一种石油钻井配用的井下涡轮泥浆马达,其特征在于定子装配在涡轮壳体内,且通过上接头和下接头对其压紧与涡轮壳体连为一体,转子套装在涡轮轴上,且转子中心孔与涡轮轴的截面形状一致。在转子出口端面和次级定子进口端面之间装有滚动摩擦副,滚动摩擦副由动环、滚动体、静环所组成。在转子出口端面中心孔位置开有一开口向下的圆形凹口,动环位于圆形凹口内;在定子进口端面中心孔位置开有一开口向上的圆形凹口,静环位于圆形凹口内,滚动体位于动环与静环之间。
The utility model relates to an underground turbine mud motor for oil drilling, which is characterized in that the stator is assembled in the turbine casing, and is connected with the turbine casing by pressing it through an upper joint and a lower joint, and the rotor is set on the turbine shaft. , and the center hole of the rotor is consistent with the cross-sectional shape of the turbine shaft. A rolling friction pair is installed between the rotor outlet end face and the secondary stator inlet end face, and the rolling friction pair is composed of a moving ring, a rolling body and a static ring. There is a circular notch with an opening downward at the center hole of the rotor outlet end face, and the moving ring is located in the circular notch; there is a circular notch with an upward opening at the center hole of the stator inlet end face, and the stationary ring is located in the circular notch , The rolling element is located between the moving ring and the static ring.
Description
The utility model relates to a kind of down-hole turbine MTR of oil drilling adapted.
In the oil drilling exploration, the turbine MTR that oil drilling down-hole turbodrill adopts has fixedly stator and rotor turbine MTR and floating stator turbine MTR.
Fixedly stator and rotor turbine MTR is simple in structure, low cruise is more stable, the axial force that is subjected at the same pressure drop lower bearing is only produced by rotor portion, but gap adjustment difficulty relatively, and along with the wearing and tearing of bearing, gap between the turbine stator and rotor changes, last gap increases gradually and descends the gap to reduce gradually, and when the bearing excessive wear, the prime rotor will contact with secondary stator, cause the wearing and tearing of turbine stator and rotor, even can cause the badly damaged of turbine MTR.
Floating stator turbine MTR does not have the gap adjustment, and the wearing and tearing of bearing do not influence the gap between the turbine stator and rotor, and under identical turbine external diameter, the blade mean radius is big, and the moment of torsion of generation is big.But the structure more complicated of floating stator turbine MTR, the low cruise instability, the axial force that is subjected at the same pressure drop lower bearing is produced by stator and rotor two parts, axial force is bigger, bearing wear is fast, limit stator by alignment pin between stator and the turbine shroud and rotate and allow the relative slip of stator, the functional reliability of its alignment pin is lower.
Task of the present utility model provides a kind of floating rotor turbine MTR with rolling friction pair, has the adjustment of no gap, gap between the turbine stator and rotor does not change with the wearing and tearing of cartridge bearing, make things convenient for field maintenance and replacing, the characteristics that stable and reliable working performance, bearing life significantly improve.
Design main points of the present utility model are, stator is assemblied in the turbine shroud, and by top connection and lower contact it are compressed with turbine shroud and to be connected as a single entity, and rotor is sleeved on the turbine wheel shaft, and rotor bore is consistent with the cross sectional shape of turbine wheel shaft.Rotor is subjected to gravity and the power effect of surging is seated on the secondary stator.Between rotor outlet end face and secondary stator inlet end face rolling friction pair is housed, rolling friction pair is made up of rotating ring, rolling element, stationary ring.Have a circular recess that Open Side Down at rotor outlet end face central hole location, rotating ring is positioned at circular recess, and the rotating ring centre bore matches with the turbine wheel shaft face of cylinder, have the circular recess that an opening makes progress at stator inlet end face central hole location, stationary ring is positioned at circular recess, and rolling element is between rotating ring and stationary ring.
Compared with prior art, the floating rotor turbine MTR of band rolling friction pair described in the utility model, rotor can be at axial float between the stator up and down, turbine is fixed, gap between rotor does not change with the wearing and tearing of cartridge bearing, utilize the rotor bore relation consistent to come the constrained rotor to rotate with respect to turbine wheel shaft with the cross sectional shape of turbine wheel shaft, between rotor outlet end and stator entrance point, rolling friction pair is housed, has the functional reliability height, no gap is adjusted, the low speed resistance is little, field maintenance and replacing are convenient, the advantage that the turbodrill working life significantly improves.
Fig. 1 is a general structure generalized section of the present utility model.
Fig. 2 is the cross section structure schematic diagram of turbine wheel shaft of the present utility model and rotor.
Fig. 3 is the cross section structure schematic diagram of turbine wheel shaft of the present utility model and rotor.
Fig. 4 is rotor of the present utility model and rotating ring cross section structure schematic diagram.
Fig. 5 is stator of the present utility model and stationary ring cross section structure schematic diagram.
Below in conjunction with accompanying drawing the utility model is further described: in the drawings, stator (4) is pressed in the turbine shroud (3), stator and turbine shroud are connected as a single entity, can not produce relative motion by top connection (1) and lower contact (11).Between top connection and worm gear pair, be equipped with and adjust cover (2), alignment bearing (10) is housed between lower contact and worm gear pair.The centre bore of rotor (5) is made and the consistent shape of turbine wheel shaft (9) cross sectional shape, the cross section of turbine wheel shaft can be the face of cylinder with a plane, also can be the face of cylinder, come restrict rotor to rotate with respect to turbine wheel shaft by the peculiar mutual restriction relation in the face of cylinder on band plane itself with two planes.But because rotor is sleeved on the turbine wheel shaft, unfixing in the axial direction, rotor is subjected to gravity and the power effect of surging is seated on the secondary stator, and can endwisely slip with respect to turbine wheel shaft, at axial float between the stator up and down.Have a circular recess that Open Side Down at rotor outlet end face central hole location, rotating ring (6) is that an annular solid is placed in the circular recess, and the rotating ring centre bore matches with the turbine wheel shaft face of cylinder, and rotating ring is sleeved on the turbine wheel shaft with rotor, and together rotation; Have the circular recess that an opening makes progress at stator inlet end face central hole location, stationary ring (8) is that an annular solid is fixed in the circular recess, and rolling element (7) is spherical, is placed between rotating ring and the stationary ring.The rolling friction pair of being made up of rotating ring, rolling element, stationary ring is installed between rotor outlet end face and the stator inlet end face as removable consumable accessory, makes that the low speed resistance is little.When the bearing wear of cartridge or turbine section, only turbine wheel shaft sinks, and rotor is floating between the stator up and down, does not influence the relative position of turbine stator and rotor, does not influence the work of worm gear pair, can give full play to the ability to work of bearing like this.Because the hydraulic load that rotors at different levels are subjected to passes to secondary stator by rolling friction pair, realize axially unloading, the service load that bearing is subjected to greatly reduces, and bearing life will significantly improve, thereby greatly increase the working life of turbine MTR.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00229125.8U CN2413011Y (en) | 2000-01-26 | 2000-01-26 | Floating rotor turbne mud motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00229125.8U CN2413011Y (en) | 2000-01-26 | 2000-01-26 | Floating rotor turbne mud motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2413011Y true CN2413011Y (en) | 2001-01-03 |
Family
ID=33592482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00229125.8U Expired - Fee Related CN2413011Y (en) | 2000-01-26 | 2000-01-26 | Floating rotor turbne mud motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2413011Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434283A (en) * | 2011-11-09 | 2012-05-02 | 无锡康明斯涡轮增压技术有限公司 | Integrated low-pressure stage turbine shell structure of two-stage supercharging exhaust gas turbocharger |
| CN102561942A (en) * | 2010-12-23 | 2012-07-11 | 普拉德研究及开发股份有限公司 | Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
| CN104080996A (en) * | 2011-11-10 | 2014-10-01 | 普拉德研究及开发股份有限公司 | Reinforced directional drilling assemblies and methods of forming same |
-
2000
- 2000-01-26 CN CN00229125.8U patent/CN2413011Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561942A (en) * | 2010-12-23 | 2012-07-11 | 普拉德研究及开发股份有限公司 | Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
| US9175515B2 (en) | 2010-12-23 | 2015-11-03 | Schlumberger Technology Corporation | Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
| US10502002B2 (en) | 2010-12-23 | 2019-12-10 | Schlumberger Technology Corporation | Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same |
| CN102434283A (en) * | 2011-11-09 | 2012-05-02 | 无锡康明斯涡轮增压技术有限公司 | Integrated low-pressure stage turbine shell structure of two-stage supercharging exhaust gas turbocharger |
| CN104080996A (en) * | 2011-11-10 | 2014-10-01 | 普拉德研究及开发股份有限公司 | Reinforced directional drilling assemblies and methods of forming same |
| US10724299B2 (en) | 2011-11-10 | 2020-07-28 | Schlumberger Technology Corporation | Reinforced directional drilling assemblies and methods of forming same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |