CN204200458U - Positive displacement charging turbine motor - Google Patents
Positive displacement charging turbine motor Download PDFInfo
- Publication number
- CN204200458U CN204200458U CN201420562385.6U CN201420562385U CN204200458U CN 204200458 U CN204200458 U CN 204200458U CN 201420562385 U CN201420562385 U CN 201420562385U CN 204200458 U CN204200458 U CN 204200458U
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- Prior art keywords
- positive displacement
- transmission shaft
- turbine
- turbine motor
- motor
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of positive displacement charging turbine motor, comprise frame, turbine group, transmission shaft, the stator impeller of turbine group is fixedly mounted on frame inside, and the impeller of rotor of turbine group is fixedly mounted on transmission shaft, is provided with by-pass hole in transmission shaft bottom.Frame adopts elongate structure, and the transmission shaft between turbine group and by-pass hole is connected with positive displacement supercharging device by coupling.During use, positive displacement charging turbine motor is arranged between Bottom Hole Assembly (BHA) and drill bit, namely positive displacement charging turbine motor has played the high-revolving technical advantage of turbine motor, drilling bit high-speed rotary can be driven to break rock, overcome again the deficiency that pressure drop loss is excessive, improve shaft bottom bit hydraulic horsepower, meet the requirement of shaft bottom drilling fluid cleaning and auxiliary rock.Meanwhile, positive displacement boost fluid force motor also have structure simple, easy to operate, be convenient to install, safe and reliable advantage.
Description
Technical field
The utility model relates to oil and gas well drilling, CBM Drilling, geologic prospecting, probing drive unit field, mine, especially a kind of positive displacement charging turbine motor.
Background technique
Turbine motor have high rotating speed, high temperature resistant, vibrate little, drilling speed high, with high speed PDC drill bit or line insert drill with the use of, significantly can improve the bit speed of deep & ultra-deep well.External turbine motor advanced technology, long working life, but technical monopoly, use price high; The relative external price of domestic turbine motor is cheap, but usability is difficult to meet drilling technology requirement.In addition, turbine motor, making drill bit obtain high-revolving while, also consumes the pressure drop of drilling fluid, have impact on the water-horse power of drill bit, constrain applying of turbine motor technology.Have high-power huge discharge drilling pump abroad, can meet the service condition of turbine motor, also have correlation technique ability although domestic, corollary equipment imperfection, using scope is limited.The high rotating speed that turbine motor provides should be obtained, reduce the loss of pressure drop again, key issue urgently to be resolved hurrily when being the use of current turbine motor.The main high-power pump mode in ground that relies on solves both at home and abroad, but shaft bottom water-horse power improves limited in one's ability, and has higher requirement to ground pump, and technical difficulty is increasing.
Propose multiple patent formula for turbine motor both at home and abroad, and detailed discussion has been carried out to its technical characterstic, can find out according to patent description, focus on the aspect of performance such as rotating speed or moment of torsion improving turbine motor, for pressure compensation aspect not specified (NS).
Model utility content
The purpose of this utility model is the problem for prior art, design a kind of structure simple, reliable performance, easy to operate positive displacement charging turbine motor, high rotating speed can either be provided, the pressure loss of turbine motor can be compensated again, improve shaft bottom bit hydraulic horsepower, utilize the technical specifications of domestic existing pump, the technical requirements meeting deep & ultra-deep well drilling speed of low-cost high-efficiency.
The utility model solves the technological scheme that its technical problem adopts:
Positive displacement charging turbine motor, comprise frame, turbine group, transmission shaft, the stator impeller of turbine group is fixedly mounted on frame inside, the impeller of rotor of turbine group is fixedly mounted on transmission shaft, by-pass hole is provided with in transmission shaft bottom, its improvements are embodied in: frame adopts elongate structure, and the transmission shaft between turbine group and by-pass hole is connected with positive displacement supercharging device by coupling.
Described positive displacement supercharging device is made up of screw rotor and screw stator, and screw stator is fixedly mounted on frame inside, and screw rotor is connected with transmission shaft by coupling.
Mounting sealing device between described transmission shaft bottom and frame.
Its working principle is: positive displacement charging turbine motor is arranged between Bottom Hole Assembly (BHA) and drill bit, when drilling fluid enters, first turbine group is arrived, the impeller of rotor of turbine group is driven to start to rotate, and drive the screw rotor of positive displacement supercharging device to rotate by coupling, when positive displacement supercharging device rotates, just can improve the pressure of drilling fluid, cleaner for high-pressure drilling fluid enters transmission shaft inside through by-pass hole, finally arrives shaft bottom drill bit.Turbine group is High Rotation Speed under the effect of drilling fluid, pass through coupling, positive displacement supercharging device, transmission shaft drives drilling bit high-speed rotary to break rock, drilling fluid is after turbine group, pressure reduces, and arrive the top of positive displacement supercharging device, because positive displacement supercharging device is connected with turbine group, therefore turbine group High Rotation Speed also can drive positive displacement supercharging device High Rotation Speed, thus improve the pressure of drilling fluid, because positive displacement supercharging device top is low-pressure drilling liquid, bottom is cleaner for high-pressure drilling fluid, along with the continual High Rotation Speed of positive displacement supercharging device, the effect of suction will be produced to top low-pressure drilling liquid, this also contributes to the quick flowing of the inner drilling fluid of drill string, reduce in drill string along journey loss.
On-the-spot Analysis of application result shows, when adopting positive displacement charging turbine motor to coordinate PDC drill bit or diamond-impregnated bit to carry out drilling well, high rotating speed can either be provided to carry out brokenly rock for drill bit, the water-horse power of shaft bottom drill bit can be increased again, improve Scavenging activity and the auxiliary rock ability of shaft bottom landwaste, be conducive to the raising of bit speed.According to statistics, bit speed comparatively conventional drilling technologies improves 58%-87%, and speed-increasing effect is remarkable.Namely positive displacement charging turbine motor has played the high-revolving technical advantage of turbine motor, overcome again the deficiency that pressure drop loss is excessive, utilize domestic existing pump technology, can the bit speed of raising deep & ultra-deep well of low-cost high-efficiency, there is important social value and economic value.
Meanwhile, positive displacement charging turbine motor also have that structural design is simple, reliable performance, the feature such as easy to operate.
Accompanying drawing explanation
Fig. 1 is the positive displacement charging turbine motor configuration schematic diagram proposed according to the utility model.
1-frame, 2-turbine group, 3-coupling, 4-positive displacement supercharging device, 5-coupling, 6-transmission shaft, 7-by-pass hole, 8-seal arrangement in figure.
Embodiment
The utility model is described in detail below in conjunction with drawings and Examples.
As Fig. 1, positive displacement charging turbine motor forms primarily of frame 1, turbine group 2, coupling 3, positive displacement supercharging device 4, coupling 5, transmission shaft 6, by-pass hole 7, seal arrangement 8.
It is inner that turbine group 2 is arranged on frame 1, and turbine group 2 is formed primarily of impeller of rotor and stator impeller, and it is inner that stator impeller is fixedly mounted on frame 1, and impeller of rotor is fixed on transmission shaft 6 (transmission shaft and impeller of rotor also can be overall here).The transmission shaft of turbine group 2 is connected with positive displacement supercharging device 4 with 5 by coupling 3.
Positive displacement supercharging device 4 is formed primarily of screw rotor and screw stator, it is inner that screw stator is fixedly mounted on frame 1 (elongated portion), the impeller of rotor of turbine group 2 is connected with the screw rotor of positive displacement supercharging device 4 by coupling 3, the screw rotor of positive displacement supercharging device 4 is connected with transmission shaft 6 by coupling 5, and transmission shaft 6 processes by-pass hole.
In order to improve the sealing between transmission shaft 6 and frame 1, mounting sealing device 8.
Claims (3)
1. positive displacement charging turbine motor, comprise frame (1), turbine group (2), transmission shaft (6), the stator impeller of turbine group (2) is fixedly mounted on frame inside, the impeller of rotor of turbine group (2) is fixedly mounted on transmission shaft (6), by-pass hole (7) is provided with in transmission shaft (6) bottom, it is characterized in that: frame (1) adopts elongate structure, and the transmission shaft (6) between turbine group (2) and by-pass hole (7) is connected with positive displacement supercharging device (4) by coupling (3,5).
2. positive displacement charging turbine motor according to claim 1, it is characterized in that: described positive displacement supercharging device (4) is made up of screw rotor and screw stator, screw stator is fixedly mounted on frame inside, and screw rotor is connected with transmission shaft (6) by coupling (3,5).
3. positive displacement charging turbine motor according to claim 1 and 2, is characterized in that: mounting sealing device (8) between described transmission shaft (6) bottom and frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562385.6U CN204200458U (en) | 2014-09-28 | 2014-09-28 | Positive displacement charging turbine motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562385.6U CN204200458U (en) | 2014-09-28 | 2014-09-28 | Positive displacement charging turbine motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200458U true CN204200458U (en) | 2015-03-11 |
Family
ID=52658422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420562385.6U Expired - Fee Related CN204200458U (en) | 2014-09-28 | 2014-09-28 | Positive displacement charging turbine motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930685A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | Concentric friction speed directional well drilling device in the same direction |
| CN106930684A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | Planet milling formula broken rock device |
| CN106930687A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | Fluid power hits the step-by-step movement broken rock device that shakes |
-
2014
- 2014-09-28 CN CN201420562385.6U patent/CN204200458U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930685A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | Concentric friction speed directional well drilling device in the same direction |
| CN106930684A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | Planet milling formula broken rock device |
| CN106930687A (en) * | 2015-12-29 | 2017-07-07 | 中石化石油工程技术服务有限公司 | Fluid power hits the step-by-step movement broken rock device that shakes |
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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: 20150311 Termination date: 20210928 |