CN103015889A - Stator and rotor assembly for high-power high-speed high-efficiency turbodrills - Google Patents
Stator and rotor assembly for high-power high-speed high-efficiency turbodrills Download PDFInfo
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- CN103015889A CN103015889A CN2012105548140A CN201210554814A CN103015889A CN 103015889 A CN103015889 A CN 103015889A CN 2012105548140 A CN2012105548140 A CN 2012105548140A CN 201210554814 A CN201210554814 A CN 201210554814A CN 103015889 A CN103015889 A CN 103015889A
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Abstract
A stator and rotor assembly for high-power high-speed high-efficiency turbodrills belongs to the industry of petroleum drilling. The purpose of the invention is to solve the problems of the conventional low-speed turbodrill that: the variety of carried drill bits is limited, the number of stages is excessive, and the efficiency is low. A stator blade disk and a rotor blade disk are formed into a stage, the degree of reaction of the stage is less than 0.5, the ten stages are sleeved on a shaft sequentially from the top down to form a turbodrill power section, the end surfaces of the ten stages are tightly pressed together, a shell is sleeved on the ten stages, splines are adopted to construct the profiles of both the rotor blade and the stator blade, the spline of the rotor blade is shaped like a left-falling stroke, and the spline of the stator blade is shaped like a right-falling stroke.
Description
Technical field:
The invention belongs to the oil drilling industry, be specifically related to a kind of Large-power High-Speed high-efficiency turbine drilling tool stator and rotor stack.
Background technology:
Turbodrill utilizes high speed and high pressure mud to impact blade, makes it obtain energy, thereby drives the broken rock of the bit that is attached thereto.Turbodrill mainly is comprised of turbine stator, turbine rotor, main shaft, thrust bearing, middle part bearing, lower bearing and shell.Drilling rod does not rotate during probing, the drilling rod condition of work can be improved significantly, do not have the consumption of rotary drill rod power demand yet.Compare with other drilling tool, turbodrill has that high drilling speed, drilling efficiency are high, the advantage such as short when boring; Concentration of energy in the shaft bottom, is driven the broken rock of bit; Drilling rod is motionless during drilling well, has reduced drilling rod, the wearing and tearing of sleeve pipe and the generation of accident.Therefore, adopt the turbodrill drilling well to be particularly suitable for the hardpan heavy duty service.
The thirties in 20th century, the former Soviet Union adopts turbodrill the earliest in oil drilling.To the fifties, turbine bores and has obtained rapidly development.Become basic drilling method in the former Soviet Union and Romania, American-European countries's turbine probing workload has accounted for the 5-10% of total amount.Abroad in Recent Years turbodrill drilling technology development rapidly, when using the turbodrill drilling well generally can save brill abroad 50%, saving cost l/3.China once carried out the research that turbine bores in the fifties, never applied.
But because turbodrill is the dynamic power machine that is driven the turbo blade acting by drilling fluid, solid phase particles is obvious to the erosion effect of turbo blade in the drilling fluid, the excessive wear meeting of blade causes the inefficacy of turbodrill, so the life-span of general turbodrill only has 200-300 hour.Because existing drilling fluid viscosity is larger, cause the application life of the stage of turbine efficient of turbodrill and turbodrill low.
Traditional turbodrill all is to utilize at the pump on ground drilling fluid to be suppressed the turbine place, promote turbine rotation acting, and general rotating speed is lower, the bite type of carrying is limited, therefore, when being drilled into different stratum, need again more bit change and drilling tool turbine, delay drilling time and progress.
Summary of the invention:
The objective of the invention is to carry the problems such as the drill bit kind is limited, progression is more, efficient is on the low side in order to solve existing low speed turbodrill, cause that the turbodrill drilling speed is limited, longer dimension and service efficiency problem on the low side, and then provide a kind of Large-power High-Speed high-efficiency turbine drilling tool stator and rotor stack.
Technical scheme of the present invention is: a kind of Large-power High-Speed high-efficiency turbine drilling tool stator and rotor stack, it is characterized in that: comprise axle, housing, stator and rotor, stator is provided with the stator vane dish, and rotor is provided with the rotor blade dish, and stator vane dish and rotor blade dish form a level, the degree of reaction of level is less than 0.5, the inner wall sleeve of level is contained on the axle, and axle is provided with ten levels, and the end face between level and the level is compression fit, the lower end of axle is provided with drill bit, and the outer wall cover of level has housing.Described stator vane dish comprises that disk, stator outer disc cylindraceous and spline curve are shaped as the stator vane of casting aside font in the stator cylindraceous, the even annular of stator vane is distributed on the stator vane dish centered by the axle center, and in stator cylindraceous between disk and the stator outer disc cylindraceous.Described rotor blade dish comprises that disk, rotor outer circle dish cylindraceous and spline curve are shaped as the rotor blade of pressing down font in the rotor cylindraceous, the even annular of rotor blade is distributed on the rotor blade dish centered by the axle center, and in rotor cylindraceous between disk and the rotor outer circle dish cylindraceous, the material of rotor blade and stator vane is ZG20CrMnSiNi2, is equipped with retaining mechanism on described axle and the housing.
Described drill bit is PDC drill bit, TSP drill bit, diamond bit.
Retaining mechanism on the described housing be the top edge of housing and its lower edge be equipped with internal thread and with the first bolt of screw-internal thread fit.
Retaining mechanism on the described axle is the top edge of axle and the second bolt that its lower edge is equipped with external screw thread and cooperates with external screw thread.
Described shell inner surface is provided with the first draw-in groove, and the stator outside is provided with the projection that matches with the first draw-in groove, and the external surface of axle is provided with the second draw-in groove, and the outside of rotor is provided with the projection that the external surface with axle matches.
The level pressure drop is 450-600kPa, and volume flow is 28-32L/s, and when rotor speed was 2500-3300rpm, stage efficiency was 60-75%, and power is 8-12kW.
The level pressure drop is 535kPa, and volume flow is 30L/s, and when rotor speed was 3000rpm, stage efficiency can reach 70%, and power is 11kW.
The present invention compared with prior art has following effect: 1. by improving design speed, effectively increased the acting of stage of turbine, thereby reduced progression, shortened the length of turbodrill.2. rotating speed is higher, the PDC drill bit that is easy to carry, TSP drill bit, diamond bit, thus improve drilling tool speed, shorten drilling period.3. the change of rotor blade and stator vane shape is convenient to improve the efficient of turbodrill, and so that turbodrill has obvious low speed dropping voltage characteristic, during the offspeed design speed, a level pressure drop reduces.4. have advantages of also that the remote monitoring of being convenient to and operability are stronger.5. retaining mechanism can avoid level to vertically move at axle.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is the front view of rotor of the present invention;
Fig. 3 is the front view of stator of the present invention;
Fig. 4 is the schematic diagram that rotor of the present invention and stator cooperate;
Fig. 5 is the shape schematic diagram of rotor blade of the present invention;
Fig. 6 is the shape schematic diagram of stator vane of the present invention.
The specific embodiment:
The specific embodiment one: present embodiment is described in conjunction with each figure, Large-power High-Speed high-efficiency turbine drilling tool stator and the rotor stack of present embodiment comprise axle 6, housing 2, stator 4 and rotor 5, stator 4 is provided with the stator vane dish, rotor 5 is provided with the rotor blade dish, stator vane dish and rotor blade dish form a level, the degree of reaction of level is less than 0.5, the inner wall sleeve of level is contained on the axle 6, axle 6 is provided with ten levels, end face between level and the level is compression fit, the lower end of axle 6 is provided with drill bit 9, and the outer wall cover of level has housing 2.Described stator vane dish comprises that stator cylindraceous interior disk 4-1, stator outer disc 4-2 cylindraceous and spline curve are shaped as the stator vane 4-3 that casts aside font, the even annular of stator vane 4-3 is distributed on the stator vane dish centered by the axle center, and in stator cylindraceous between disk 4-1 and the stator outer disc 4-2 cylindraceous.Described rotor blade dish comprises that rotor cylindraceous interior disk 5-1, rotor outer circle dish 5-2 cylindraceous and spline curve are shaped as the rotor blade 5-3 of right-falling stroke font, the even annular of rotor blade 5-3 is distributed on the rotor blade dish centered by the axle center, and in rotor cylindraceous between disk 5-1 and the rotor outer circle dish 5-2 cylindraceous, the material of rotor blade 5-3 and stator vane 4-3 is ZG20CrMnSiNi2, is equipped with retaining mechanism on described axle 5 and the housing 2.Described drill bit 9 is PDC drill bit, TSP drill bit, diamond bit.Retaining mechanism on the described housing 2 be the top edge of housing 2 and its lower edge be equipped with internal thread and with the first bolt 1 of screw-internal thread fit.Retaining mechanism on the described axle 6 is the top edge of axle 6 and the second bolt 8 that its lower edge is equipped with external screw thread and cooperates with external screw thread.Described housing 2 inner surfaces are provided with the first draw-in groove 3, and stator 4 outsides are provided with and the first draw-in groove 3 projections of coincideing mutually, and the external surface of axle 6 is provided with the second draw-in groove 7, and the outside of rotor 5 is provided with the projection that the external surface with axle 6 matches.
The stator vane 4-3 of present embodiment and rotor blade 5-3 be unsymmetric form each other mutually, first stator 4 and rotor 5 are assembled, again retaining mechanism is installed, prevent that level from lengthwise movement occuring when rotating, then drilling liquid flow step-down behind stator 4 is accelerated, and enters rotor 5, drive rotor 5 rotation actings, a stator 4 and a rotor 5 form one-level, and the degree of reaction of level is less than 0.5, and the parameter of weighing drilling fluid step-down acceleration degree in rotor blade 5-3 is called degree of reaction.Ten identical levels from top to bottom set gradually, and housing 2 is sleeved on ten identical levels, consist of the power resources of turbodrill.
The specific embodiment two: in conjunction with each figure present embodiment is described, the level pressure drop of present embodiment is 450-600kPa, and volume flow is 28-32L/s, and when rotor speed was 2500-3300rpm, stage efficiency was 60-75%, and power is 8-12kW.So arrange, according to the low speed dropping voltage characteristic of level, during the off-design rotating speed, a level pressure drop reduces, and can the base area surface pressure judges the duty of turbodrill, makes things convenient for drilling tool staff remote monitoring and operation.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: scheme bright present embodiment, the level pressure drop of present embodiment is 535kPa in conjunction with each, and volume flow is 30L/s, and when rotor speed was 3000rpm, stage efficiency can reach 70%, and power is 11kW.So arrange, according to the low speed dropping voltage characteristic of level, during the off-design rotating speed, a level pressure drop reduces, and can the base area surface pressure judges the duty of turbodrill, makes things convenient for drilling tool staff remote monitoring and operation.Other composition is identical with the specific embodiment one or two with annexation.
Large-power High-Speed high-efficiency turbine drilling tool operating principle is as follows: the drilling fluid from the high pressure drilling pump on ground, through the turbodrill drilling rod, enter stator 4 and the rotor 5 of turbodrill, and step-down is accelerated in stator 4, flows into rotor 5, drive rotor 5 rotation actings.By increasing the pressure drop in stator 4 and the rotor 5, the flow velocity that flows into the drilling fluid of rotor 5 and stator 4 increases, and the rotating speed of rotor 5 improves, so that turbine power increases.
Claims (7)
1. a Large-power High-Speed high-efficiency turbine drilling tool stator and rotor stack, it is characterized in that: comprise axle (6), housing (2), stator (4) and rotor (5), stator (4) is provided with the stator vane dish, rotor (5) is provided with the rotor blade dish, stator vane dish and rotor blade dish form a level, the degree of reaction of level is less than 0.5, the inner wall sleeve of level is contained on the axle (6), axle (6) is provided with ten levels, end face between level and the level is compression fit, the lower end of axle (6) is provided with drill bit (9), the outer wall cover of level has housing (2), described stator vane dish comprises disk (4-1) in the stator cylindraceous, stator outer disc cylindraceous (4-2) and spline curve are shaped as the stator vane (4-3) of casting aside font, stator vane (4-3) evenly annular is distributed on the stator vane dish centered by the axle center, and be positioned between stator disk cylindraceous (4-1) and the stator outer disc cylindraceous (4-2), described rotor blade dish comprises disk (5-1) in the rotor cylindraceous, rotor outer circle dish cylindraceous (5-2) and spline curve are shaped as the rotor blade (5-3) of right-falling stroke font, rotor blade (5-3) evenly annular is distributed on the rotor blade dish centered by the axle center, and be positioned between rotor disk cylindraceous (5-1) and the rotor outer circle dish cylindraceous (5-2), the material of rotor blade (5-3) and stator vane (4-3) is ZG20CrMnSiNi2, is equipped with retaining mechanism on described axle (5) and the housing (2).
2. Large-power High-Speed high-efficiency turbine drilling tool stator according to claim 1 and rotor stack is characterized in that: described drill bit (9) is PDC drill bit, TSP drill bit, diamond bit.
3. Large-power High-Speed high-efficiency turbine drilling tool stator according to claim 1 and rotor stack is characterized in that: the retaining mechanism on the described housing (2) be the top edge of housing (2) and its lower edge be equipped with internal thread and with first bolt (1) of screw-internal thread fit.
4. Large-power High-Speed high-efficiency turbine drilling tool stator according to claim 1 and rotor stack, it is characterized in that: the retaining mechanism on the described axle (6) is the top edge of axle (6) and the second bolt (8) that its lower edge is equipped with external screw thread and cooperates with external screw thread.
5. Large-power High-Speed high-efficiency turbine drilling tool stator according to claim 1 and rotor stack, it is characterized in that: described housing (2) inner surface is provided with the first draw-in groove (3), stator (4) outside is provided with the projection of coincideing with the first draw-in groove phase (3), the external surface of axle (6) is provided with the second draw-in groove 7), the outside of rotor (5) is provided with the projection that the external surface with axle (6) matches.
6. Large-power High-Speed high-efficiency turbine drilling tool stator according to claim 1 and rotor stack, it is characterized in that: the level pressure drop is 450-600kPa, and volume flow is 28-32L/s, when rotor speed is 2500-3300rpm, stage efficiency is 60-75%, and power is 8-12kW.
7. according to claim 1 or 6 described Large-power High-Speed high-efficiency turbine drilling tool stator and rotor stacks, it is characterized in that: a level pressure drop is 535kPa, and volume flow is 30L/s, and when rotor speed was 3000rpm, stage efficiency can reach 70%, and power is 11kW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105548140A CN103015889A (en) | 2012-12-20 | 2012-12-20 | Stator and rotor assembly for high-power high-speed high-efficiency turbodrills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105548140A CN103015889A (en) | 2012-12-20 | 2012-12-20 | Stator and rotor assembly for high-power high-speed high-efficiency turbodrills |
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| CN103015889A true CN103015889A (en) | 2013-04-03 |
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|---|---|---|---|
| CN2012105548140A Pending CN103015889A (en) | 2012-12-20 | 2012-12-20 | Stator and rotor assembly for high-power high-speed high-efficiency turbodrills |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339582A (en) * | 2013-06-24 | 2016-02-17 | 鱼骨公司 | An improved method and device for making a lateral opening out of a wellbore |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4676716A (en) * | 1984-02-17 | 1987-06-30 | Vsesojuzny Nauchno-Issle-Dovatelsky Institut Burovoi Tekhniki | Hydraulic multistage turbine of turbodrill |
| WO2011059362A1 (en) * | 2009-11-10 | 2011-05-19 | Общество С Ограниченной Ответственностью "Вниибт-Буровой Инструмент" | Turbodrill turbine |
| CN102454423A (en) * | 2011-11-30 | 2012-05-16 | 中国船舶重工集团公司第七�三研究所 | Turbine stator and rotor assembly |
-
2012
- 2012-12-20 CN CN2012105548140A patent/CN103015889A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4676716A (en) * | 1984-02-17 | 1987-06-30 | Vsesojuzny Nauchno-Issle-Dovatelsky Institut Burovoi Tekhniki | Hydraulic multistage turbine of turbodrill |
| WO2011059362A1 (en) * | 2009-11-10 | 2011-05-19 | Общество С Ограниченной Ответственностью "Вниибт-Буровой Инструмент" | Turbodrill turbine |
| CN102454423A (en) * | 2011-11-30 | 2012-05-16 | 中国船舶重工集团公司第七�三研究所 | Turbine stator and rotor assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339582A (en) * | 2013-06-24 | 2016-02-17 | 鱼骨公司 | An improved method and device for making a lateral opening out of a wellbore |
| CN105339582B (en) * | 2013-06-24 | 2019-01-15 | 鱼骨公司 | The improved method and apparatus of lateral openings are produced from wellbore |
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Application publication date: 20130403 |