CN101761485B - Righting type downhole annular suction turbopump - Google Patents
Righting type downhole annular suction turbopump Download PDFInfo
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- CN101761485B CN101761485B CN2009101136101A CN200910113610A CN101761485B CN 101761485 B CN101761485 B CN 101761485B CN 2009101136101 A CN2009101136101 A CN 2009101136101A CN 200910113610 A CN200910113610 A CN 200910113610A CN 101761485 B CN101761485 B CN 101761485B
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Abstract
The invention relates to a relates to the technical field of sucking well cylinder annular well drilling liquid in petroleum drilling, in particular to a righting type downhole annular suction turbopump. The turbopump comprises an upper interface, a stator, a lower interface, a rotor and at least one of righting devices, wherein the outer diameter of each righting device is larger than that of the rotor; the lower end of the upper interface is fixedly connected with the stator or integrates with the stator into a whole; and the stator is externally sleeved with the rotor which can rotate relatively to the rotor. The turbopump has reasonable structure, is convenient in use, can protect blades of the turbopump through the righting device out of the rotor, pushes the inner turbopump blades on the inner wall of the rotor through circulating drilling fluid in the rotor, and drives the rotor and the blades of the turbopump out of the rotor to rotate around the stator to discharge the well cylinder annular liquid, thereby reducing the pressure of a well cylinder annular liquid column when drilling, achieving the aims of under balance drilling and improving the drilling speed and efficiency, being capable of greatly reducing the use of drilling liquid chemical agent and reducing the cost, and having the characteristics of simple structure, energy saving, environment protection and convenient manufacture.
Description
One, technical field
The present invention relates to the pump technical field of the interior drilling fluid of suction mineshaft annulus in the oil drilling, is a kind of righting type downhole annular suction turbopump.
Two, background technique
In recent years and since under-balanced drilling technology protection with find oil-gas layer, improve bit speed, prevent that aspect such as leakage from comparing the drilling well of conventional drilling liquid and having absolute predominance, therefore in the whole world, develop very fast.China also began to greatly develop under-balanced drilling technology after 2003, obtained scale by 2007 and 2008 and used.Under-balanced drilling technology be exactly in drilling process the head of liquid in the pit shaft less than a kind of drilling technology of the pore pressure on stratum.Because the drilling fluid density of configuration has only the purpose that just can reach under balance pressure drilling by special drilling liquid technology often greater than strata pressure equal yield density, particularly low-pressure stratum.Aspects such as at present, the main method that reduces the pit shaft head of liquid has methods such as using gases, inflation, foam, solid palliative, and these methods all have shortcoming separately, and, bad adaptability huge as expense height, equipment, recovery difficult are big.
Three, summary of the invention
The invention provides a kind of righting type downhole annular suction turbopump, it has solved and has reduced the big problem of pit shaft head of liquid difficulty in the existing under balance pressure drilling, and can protect its blade.
Technological scheme of the present invention realizes by following measure: a kind of righting type downhole annular suction turbopump comprises upper connection, stator, lower contact, rotor and is no less than one and the outside dimension centralizer greater than rotor diameter; The lower end of upper connection be fixedly connected with stator or with stator be one, the lower end of stator is installed with lower contact, the outer cover of stator is equipped with the rotor that the energy relative stator is rotated, the upper end of rotor is installed in the outside, middle part of upper connection, the lower end of rotor is installed in the outside, middle part of lower contact, there is the centralizer mounting groove in the outside of rotor, and centralizer is installed on the rotor by the centralizer mounting groove and the relative rotor rotation of energy; There is epicoele the inside of upper connection, there is cavity of resorption the inside of lower contact, form rotor cavity between the inwall of rotor and the outer wall of stator, the last endoporus that is communicated with epicoele and rotor cavity is arranged at the bottom of upper connection, and the following endoporus that is communicated with cavity of resorption and rotor cavity is arranged at the top of lower contact; Have on the inwall of rotor to be no less than two interior turbine blade, there is the turbine pump blade that is no less than two in the outside of rotor.
Be further optimization and/or improvements below to the foregoing invention technological scheme:
The quantity of above-mentioned centralizer can be two and lay respectively at the upper and lower of rotor.
The outside of above-mentioned centralizer can have and is no less than three the blade of setting upright.
The upper end of above-mentioned rotor can be installed in the outside, middle part of upper connection by upper sleeve gasket, and the lower end of rotor can be installed in the outside, middle part of lower contact by lower sleeve gasket.
Can there be up big and down small last frustum the lower end of above-mentioned upper connection, and there is the up big and down small last conical surface the corresponding upward position of frustum and matches with last frustum on the upper inside wall of rotor cavity; Can there be up-small and down-big following frustum the upper end of lower contact, and there is the up-small and down-big following conical surface the corresponding position of frustum down and matches with following frustum on the lower inner wall of rotor cavity.
The quantity of turbine blade can be nine and be distributed on the inwall of rotor in above-mentioned.
The quantity of above-mentioned turbine pump blade can be 18 and be distributed in the outside of rotor.
The above-mentioned quantity of setting upright blade can be eight and be distributed in the outside of centralizer.
Reasonable and compact in structure of the present invention; easy to use; it protects the turbine pump blade by the outer centralizer of rotor; by the interior turbine blade on the promotion of the circulating fluid in the rotor rotor inner wall; the turbine pump blade that drives the rotor and the outside thereof rotates to discharge liquid in the mineshaft annulus around stator; thereby the pressure of mineshaft annulus fluid column when reducing drillng operation; reach the purpose of under balance pressure drilling, raising bit speed and drilling efficiency; can also reduce in a large number the drilling fluid chemical agent use, reduce cost the characteristics of have simple in structure, energy-conserving and environment-protective, being convenient to make.
Four, description of drawings
Accompanying drawing 1 is looked the sectional structure schematic representation for the master of most preferred embodiment of the present invention.
Accompanying drawing 2 is analysed and observe the structure for amplifying schematic representation for A-A place in the accompanying drawing 1.
Coding in the accompanying drawing is respectively: 1 is upper connection, and 2 is stator, and 3 are lower contact, and 4 is rotor, 5 is epicoele, and 6 is cavity of resorption, and 7 is rotor cavity, and 8 is last endoporus, 9 are following endoporus, and 10 is interior turbine blade, and 11 is the turbine pump blade, 12 is upper sleeve gasket, and 13 is lower sleeve gasket, and 14 is last frustum, 15 is the last conical surface, and 16 are following frustum, and 17 are the following conical surface, 18 is centralizer, and 19 is the centralizer mounting groove, and 20 for setting upright blade.
Five, embodiment
The present invention is not subjected to following embodiment's restriction, can determine concrete mode of execution according to technological scheme of the present invention and actual conditions.
Below in conjunction with most preferred embodiment and accompanying drawing the present invention is further described:
Shown in accompanying drawing 1,2, this righting type downhole annular suction turbopump comprises upper connection 1, stator 2, lower contact 3, rotor 4 and is no less than one and the outside dimension centralizer 18 greater than rotor 4 external diameters; The lower end of upper connection 1 is fixedly connected with stator 2 or is one with stator 2, the lower end of stator 2 is installed with lower contact 3, the outer cover of stator 2 is equipped with the rotor 4 that energy relative stator 2 is rotated, the upper end of rotor 4 is installed in the outside, middle part of upper connection 1, the lower end of rotor 4 is installed in the outside, middle part of lower contact 3, there is centralizer mounting groove 19 in the outside of rotor 4, and centralizer 18 is installed on the rotor 4 by centralizer mounting groove 19 and can rotates relative to rotor 4; There is epicoele 5 inside of upper connection 1, there is cavity of resorption 6 inside of lower contact 3, form rotor cavity 7 between the outer wall of the inwall of rotor 4 and stator 2, the last endoporus 8 that is communicated with epicoele 5 and rotor cavity 7 is arranged at the bottom of upper connection 1, and the following endoporus 9 that is communicated with cavity of resorption 6 and rotor cavity 7 is arranged at the top of lower contact 3; Have on the inwall of rotor 4 to be no less than two interior turbine blade 10, there is the turbine pump blade 11 that is no less than two in the outside of rotor 4.Constitute pump chamber between rotor 4 and its outside well bore wall or the casing wall, in drilling process, in rotor cavity 7, inject circulating fluid by epicoele 5, utilizing the impulse force of circulating fluid to drive rotor 4 as power source runs up, making rotor 4 drive turbine pump blade 11 rotates, with upwards transportation of the drilling fluid in pit shaft or the sleeve pipe, special power under like this need not mounting shaft, just can aspirate the pressure that drilling fluid reduces mineshaft annulus fluid column in the drilling operation course earthward, to realize the purpose of under balance pressure drilling and raising bit speed.Centralizer 18 can prevent the outer end wearing and tearing of turbine pump blade 11 and collide on the borehole wall, thereby prolong its working life.
Shown in accompanying drawing 1,2, the quantity of centralizer 18 is two and lays respectively at the upper and lower of rotor 4.Two centralizers 18 can be protected rotor 4 better up and down.
Shown in accompanying drawing 1,2, the outside of centralizer 18 have be no less than three set upright blade 20.Set upright the foreign material such as silt that the space between the blade 20 can make centralizer 18 places gather and fall, can not influence the rotation of rotor 4 because of obstruction.
Shown in accompanying drawing 1,2, the upper end of rotor 4 is installed in by upper sleeve gasket 12 outside the middle part of upper connection 1, and the lower end of rotor 4 is installed in the outside, middle part of lower contact 3 by lower sleeve gasket 13.By upper sleeve gasket 12 and lower sleeve gasket 13 rotor 4 is freely rotated.
Shown in accompanying drawing 1,2, there is up big and down small last frustum 14 lower end of upper connection 1, and there is the up big and down small last conical surface 15 the corresponding upward position of frustum 14 and matches with last frustum 14 on the upper inside wall of rotor cavity 7; There is up-small and down-big following frustum 16 upper end of lower contact 3, and there is the up-small and down-big following conical surface 17 the corresponding position of frustum 16 down and matches with following frustum 16 on the lower inner wall of rotor cavity 7.Cooperate with the following conical surface 17 with the last conical surface 15, following frustum 16 by last frustum 14, can make the rotation held stationary of rotor 4, keep the sealing of rotor cavity 7 simultaneously.
Shown in accompanying drawing 1,2, the quantity of interior turbine blade 10 is nine and is distributed on the inwall of rotor 4.Interior turbine blade 10 numbers of rotor 4 are decided by the hydraulic parameters of formation factor and system, and the quantity of interior turbine blade 10 is few more, and the rotating speed of rotor 4 is high more, but moment of torsion is also more little.Under normal conditions, the quantity of turbine blade 10 is nine in making, and moment of torsion is also comparatively suitable simultaneously can to make rotor 4 existing high rotational speed, is convenient to upwards transportation of the drilling fluid in pit shaft or the sleeve pipe.
Shown in accompanying drawing 1,2, the quantity of turbine pump blade 11 is 18 and is distributed in the outside of rotor 4.With the discharge that guarantees the drilling fluid in pit shaft or the sleeve pipe higher efficient is arranged.
Shown in accompanying drawing 1,2, the quantity of setting upright blade 20 is eight and is distributed in the outside of centralizer 18.To guarantee centralizer 18 existing intensity preferably, the foreign material of being convenient to again gather such as silt fall.
Above technical characteristics has constituted most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease non-essential technical characteristics according to actual needs, satisfies the demand of different situations.
The working procedure of most preferred embodiment of the present invention is: at first, upper connection 1 of the present invention is connected with the top drilling tool, lower contact 3 connects with lower drilling tool, and and drilling tool G.I.H together, note forbidding with the present invention be lowered into pregnant, undergauge, easily collapse, complicated well section such as leakiness, control its lowering velocity when transferring; Secondly, when the present invention reaches predetermined well depth position, the turn on pump circulation, the landwaste precipitation or the accumulation in shaft bottom are removed in abundant bottom-hole cleaning; At this moment, circulating fluid enters epicoele 5 by the top drilling tool, flowing into the interior turbine blade 10 of rotor cavity 7 interior also promotions by last endoporus 8 rotates, make rotor 4 around stator 2 axial rotation, the turbine pump blade 11 that rotor 4 drives its outside again rotates, with upwards transportation and annular space from drilling tool outside flows out ground of the drilling fluid in pit shaft or the sleeve pipe, the drilling fluids in the rotor cavity 7 flow into cavity of resorptions 6 and enter lower drilling tool from endoporus 9 down simultaneously, then the outflow of the annular space outside drilling tool ground; At last, creep into finish after, the present invention is tripped out, with clear water circulation, clean up inner drilling fluid.
Claims (10)
1. righting type downhole annular suction turbopump is characterized in that comprising upper connection, stator, lower contact, rotor and is no less than one and the outside dimension centralizer greater than rotor diameter; The lower end of upper connection be fixedly connected with stator or with stator be one, the lower end of stator is installed with lower contact, the outer cover of stator is equipped with the rotor that the energy relative stator is rotated, the upper end of rotor is installed in the outside, middle part of upper connection, the lower end of rotor is installed in the outside, middle part of lower contact, there is the centralizer mounting groove in the outside of rotor, and centralizer is installed on the rotor by the centralizer mounting groove and the relative rotor rotation of energy; There is epicoele the inside of upper connection, there is cavity of resorption the inside of lower contact, form rotor cavity between the inwall of rotor and the outer wall of stator, the last endoporus that is communicated with epicoele and rotor cavity is arranged at the bottom of upper connection, and the following endoporus that is communicated with cavity of resorption and rotor cavity is arranged at the top of lower contact; Have on the inwall of rotor to be no less than two interior turbine blade, there is the turbine pump blade that is no less than two in the outside of rotor.
2. righting type downhole annular suction turbopump according to claim 1, the quantity that it is characterized in that centralizer are two and lay respectively at the upper and lower of rotor.
3. righting type downhole annular suction turbopump according to claim 1 and 2, the outside that it is characterized in that centralizer have and are no less than three the blade of setting upright.
4. righting type downhole annular suction turbopump according to claim 1 and 2 is characterized in that the upper end of rotor is installed in by upper sleeve gasket outside the middle part of upper connection, and the lower end of rotor is installed in the outside, middle part of lower contact by lower sleeve gasket.
5. righting type downhole annular suction turbopump according to claim 3 is characterized in that the upper end of rotor is installed in by upper sleeve gasket outside the middle part of upper connection, and the lower end of rotor is installed in the outside, middle part of lower contact by lower sleeve gasket.
6. righting type downhole annular suction turbopump according to claim 4 is characterized in that there is up big and down small last frustum the lower end of upper connection, and there is the up big and down small last conical surface the corresponding upward position of frustum and matches with last frustum on the upper inside wall of rotor cavity; There is up-small and down-big following frustum the upper end of lower contact, and there is the up-small and down-big following conical surface the corresponding position of frustum down and matches with following frustum on the lower inner wall of rotor cavity.
7. righting type downhole annular suction turbopump according to claim 5 is characterized in that there is up big and down small last frustum the lower end of upper connection, and there is the up big and down small last conical surface the corresponding upward position of frustum and matches with last frustum on the upper inside wall of rotor cavity; There is up-small and down-big following frustum the upper end of lower contact, and there is the up-small and down-big following conical surface the corresponding position of frustum down and matches with following frustum on the lower inner wall of rotor cavity.
8. righting type downhole annular suction turbopump according to claim 7, the quantity of turbine blade is nine and is distributed on the inwall of rotor in it is characterized in that.
9. righting type downhole annular suction turbopump according to claim 8, the quantity that it is characterized in that the turbine pump blade are 18 and are distributed in the outside of rotor.
10. righting type downhole annular suction turbopump according to claim 9, the quantity that it is characterized in that setting upright blade are eight and are distributed in the outside of centralizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101136101A CN101761485B (en) | 2009-12-29 | 2009-12-29 | Righting type downhole annular suction turbopump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101136101A CN101761485B (en) | 2009-12-29 | 2009-12-29 | Righting type downhole annular suction turbopump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101761485A CN101761485A (en) | 2010-06-30 |
| CN101761485B true CN101761485B (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101136101A Expired - Fee Related CN101761485B (en) | 2009-12-29 | 2009-12-29 | Righting type downhole annular suction turbopump |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425382B (en) * | 2011-09-22 | 2014-06-25 | 中国石油大学(北京) | Dynamic pressure lubrication drilling tool and drilling tool assembly with same |
| CN105804678B (en) * | 2015-09-18 | 2017-07-04 | 中国石油化工股份有限公司 | A kind of oil-water well underground sand removal de-plugging back washing device |
| CN107401378B (en) * | 2017-09-20 | 2023-10-27 | 中国石油大学(北京) | Drill bit |
| CN108979570B (en) * | 2018-07-15 | 2021-05-07 | 西南石油大学 | Well bottom drilling fluid energizer |
| CN111677511A (en) * | 2020-05-08 | 2020-09-18 | 梅木精密工业(珠海)有限公司 | Submarine mineral sediment collecting and lifting method and mining system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053264U (en) * | 1988-12-08 | 1990-02-21 | 石油大学(华东) | Hydrodynamic mono-screw pump |
| JP2005127281A (en) * | 2003-10-27 | 2005-05-19 | Heishin Engineering & Equipment Co Ltd | Sampling device |
| US7092347B2 (en) * | 2000-01-06 | 2006-08-15 | Samsung Electronics Co., Ltd. | Optical pickup apparatus having disk thickness deviation correction and method therefor |
| US7401655B2 (en) * | 2005-07-07 | 2008-07-22 | Baker Hughes Incorporated | Downhole gas compressor |
| CN201582226U (en) * | 2009-12-29 | 2010-09-15 | 中国石油集团西部钻探工程有限公司吐哈钻井工艺研究院 | Centralizing pumping turbine pump for underground annuluses |
-
2009
- 2009-12-29 CN CN2009101136101A patent/CN101761485B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2053264U (en) * | 1988-12-08 | 1990-02-21 | 石油大学(华东) | Hydrodynamic mono-screw pump |
| US7092347B2 (en) * | 2000-01-06 | 2006-08-15 | Samsung Electronics Co., Ltd. | Optical pickup apparatus having disk thickness deviation correction and method therefor |
| JP2005127281A (en) * | 2003-10-27 | 2005-05-19 | Heishin Engineering & Equipment Co Ltd | Sampling device |
| US7401655B2 (en) * | 2005-07-07 | 2008-07-22 | Baker Hughes Incorporated | Downhole gas compressor |
| CN201582226U (en) * | 2009-12-29 | 2010-09-15 | 中国石油集团西部钻探工程有限公司吐哈钻井工艺研究院 | Centralizing pumping turbine pump for underground annuluses |
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| CN101761485A (en) | 2010-06-30 |
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