CN101725543A - Down-hole annular sucking turbine pump - Google Patents
Down-hole annular sucking turbine pump Download PDFInfo
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- CN101725543A CN101725543A CN200910113509A CN200910113509A CN101725543A CN 101725543 A CN101725543 A CN 101725543A CN 200910113509 A CN200910113509 A CN 200910113509A CN 200910113509 A CN200910113509 A CN 200910113509A CN 101725543 A CN101725543 A CN 101725543A
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- rotor
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- turbine pump
- drilling
- turbine
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Abstract
The invention relates to a pump for sucking drilling fluid in the wellbore annuli in the petroleum drilling, and in particular to a down-hole annular sucking turbine pump. The pump comprises an upper joint, a stator, a lower joint and a rotor, wherein the lower end of the upper joint is fixedly connected with the stator or is integrated with the stator into a whole; and the lower end of the stator is fixedly provided with the lower joint; the inner wall of the rotor is provided with at least two inner blades of the turbine, while the outer side is provided with at least two blades of the turbine pump. The down-hole annular sucking turbine pump has reasonable and compact structure, and convenient use, which propels the inner blades of the turbine to rotate the rotator around the stator through the circulating drilling fluid; and the rotor drives the turbine pump blades on the outer side of the rotor to rotate to discharge the wellbore annular fluid to reduce the pressure of the wellbore annular liquid column during the drilling operation so as to achieve the purpose of performing under-balanced drilling and increasing drilling speed. Thus, the down-hole annular sucking turbine pump has the characteristics of dramatically reducing the use of the chemical agent in the drilling fluid, greatly improving the drilling efficiency, reducing the cost and having simple structure, energy conservation, environment protection and easy manufacturing.
Description
One, technical field
The present invention relates to the pump of the interior drilling fluid of suction mineshaft annulus in the oil drilling, is a kind of down-hole annular sucking turbine pump.
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.Problems 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 down-hole annular sucking screw pump, it has solved and has reduced the big problem of pit shaft head of liquid difficulty in the existing under balance pressure drilling.
Technological scheme of the present invention realizes by following measure: a kind of down-hole annular sucking turbine pump comprises upper connection, stator, lower contact and rotor; 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, and the upper end of rotor is installed in the outside, middle part of upper connection, and the lower end of rotor is installed in the outside, middle part of lower contact; 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 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.
Reasonable and compact in structure of the present invention, easy to use, it makes rotor rotate around stator by the interior turbine blade that circulating fluid promotes on the rotor inner wall, rotor drives the turbine pump blade rotation in its outside and discharges mineshaft annulus liquid, to reduce the pressure of mineshaft annulus fluid column in the drilling operation course, reach the purpose of under balance pressure drilling and raising bit speed, can reduce the use of drilling fluid chemical agent in a large number, significantly improve drilling efficiency, 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, 4 is rotor, and 5 is epicoele, and 6 is cavity of resorption, 7 is rotor cavity, and 8 is last endoporus, and 9 are following endoporus, 10 is interior turbine blade, and 11 is the turbine pump blade, and 12 is upper sleeve gasket, 13 is lower sleeve gasket, and 14 is last frustum, and 15 is the last conical surface, 16 are following frustum, and 17 are the following conical surface.
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 down-hole annular sucking turbine pump comprises upper connection 1, stator 2, lower contact 3 and rotor 4; 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, and the lower end of rotor 4 is installed in the outside, middle part of lower contact 3; 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, need not special power under the mounting shaft like this, just can aspirate drilling fluid earthward, reduce the pressure of mineshaft annulus fluid column in the drilling operation course, to realize the purpose of under balance pressure drilling and raising bit speed.
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.
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 treating that the present invention reaches predetermined well depth position, the turn on pump circulation, abundant bottom-hole cleaning is removed the landwaste precipitation in shaft bottom or is piled up; 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 (7)
1. a down-hole annular sucking turbine pump is characterized in that comprising upper connection, stator, lower contact and rotor; 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, and the upper end of rotor is installed in the outside, middle part of upper connection, and the lower end of rotor is installed in the outside, middle part of lower contact; 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. down-hole annular sucking turbine pump according to claim 1 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.
3. down-hole annular sucking turbine pump according to claim 1 and 2 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.
4. down-hole annular sucking turbine pump according to claim 1 and 2, the quantity of turbine blade is nine and is distributed on the inwall of rotor in it is characterized in that.
5. down-hole annular sucking turbine pump according to claim 3, the quantity of turbine blade is nine and is distributed on the inwall of rotor in it is characterized in that.
6. down-hole annular sucking turbine pump according to claim 4, the quantity that it is characterized in that the turbine pump blade are 18 and are distributed in the outside of rotor.
7. down-hole annular sucking turbine pump according to claim 5, the quantity that it is characterized in that the turbine pump blade are 18 and are distributed in the outside of rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101135096A CN101725543B (en) | 2009-11-04 | 2009-11-04 | Down-hole annular sucking turbine pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101135096A CN101725543B (en) | 2009-11-04 | 2009-11-04 | Down-hole annular sucking turbine pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101725543A true CN101725543A (en) | 2010-06-09 |
| CN101725543B CN101725543B (en) | 2011-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101135096A Active CN101725543B (en) | 2009-11-04 | 2009-11-04 | Down-hole annular sucking turbine pump |
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| Country | Link |
|---|---|
| CN (1) | CN101725543B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401378A (en) * | 2017-09-20 | 2017-11-28 | 中国石油大学(北京) | Drill bit |
| CN108374650A (en) * | 2018-04-27 | 2018-08-07 | 西南石油大学 | A kind of turbine lifting device for gas hydrates fluidisation exploitation |
| CN108979570A (en) * | 2018-07-15 | 2018-12-11 | 西南石油大学 | A kind of shaft bottom drilling fluid energizer |
-
2009
- 2009-11-04 CN CN2009101135096A patent/CN101725543B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401378A (en) * | 2017-09-20 | 2017-11-28 | 中国石油大学(北京) | Drill bit |
| CN107401378B (en) * | 2017-09-20 | 2023-10-27 | 中国石油大学(北京) | Drill bit |
| CN108374650A (en) * | 2018-04-27 | 2018-08-07 | 西南石油大学 | A kind of turbine lifting device for gas hydrates fluidisation exploitation |
| CN108979570A (en) * | 2018-07-15 | 2018-12-11 | 西南石油大学 | A kind of shaft bottom drilling fluid energizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101725543B (en) | 2011-09-14 |
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