CN113617543A - Screw pump is developments whirl piece-rate system in pit - Google Patents
Screw pump is developments whirl piece-rate system in pit Download PDFInfo
- Publication number
- CN113617543A CN113617543A CN202110896114.9A CN202110896114A CN113617543A CN 113617543 A CN113617543 A CN 113617543A CN 202110896114 A CN202110896114 A CN 202110896114A CN 113617543 A CN113617543 A CN 113617543A
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- cyclone
- pipe
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- overflow
- oil
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- 238000011161 development Methods 0.000 title claims description 4
- 230000018109 developmental process Effects 0.000 title claims description 4
- 238000000926 separation method Methods 0.000 claims abstract description 47
- 230000007704 transition Effects 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 235000019198 oils Nutrition 0.000 description 47
- 238000005516 engineering process Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005191 phase separation Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 3
- 238000003889 chemical engineering Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000019476 oil-water mixture Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/02—Construction of inlets by which the vortex flow is generated, e.g. tangential admission, the fluid flow being forced to follow a downward path by spirally wound bulkheads, or with slightly downwardly-directed tangential admission
- B04C5/04—Tangential inlets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
- B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cyclones (AREA)
Abstract
A screw pump downhole dynamic cyclone separation system. The cyclone overflow pipe is connected with the outer sleeve, the stator, the screw shaft rotor, the cyclone overflow pipe, the cyclone cavity, the cyclone underflow pipe, the inner cone and the overflow oil transportation branch pipe; the screw shaft rotor, the overflow oil delivery branch pipe, the overflow pipe of the cyclone, the inner cone, the rotational flow cavity, the outer cone section and the underflow pipe are sequentially and fixedly connected on the same central axis to form an integral rotating structural part which is driven by the screw to rotate integrally; the rectangular tangential inlet of the cyclone is opposite to the spiral rotation direction; the stator is matched and connected with the overflow oil delivery branch pipe and the screw at the upper part of the overflow pipe of the cyclone, and an oil collection cavity and a spiral oil delivery gap are respectively formed; the outer sleeve is in transition connection with the overflow pipe of the cyclone through a first bearing, and the first bearing is close to the stator above and is welded on the inner side of the outer sleeve; the outer sleeve is in transition connection with the cyclone underflow pipe through a second bearing and a second bearing filling ring which are positioned at the joint of the cyclone conical section and the cyclone underflow pipe. The separation system has the advantages of high separation efficiency, low cost, small radial size and convenient operation.
Description
Technical Field
The invention relates to a two-phase separation treatment device applied to the fields of petroleum, chemical engineering, environmental protection and the like.
Background
At present, most of produced liquid is pumped to the ground and then subjected to separation treatment such as sedimentation, cyclone and the like in the water treatment technology of the produced liquid in an oil production well site, and the cost is too high when the treatment mode is adopted in a large range in an oil field. At present, the oil-water separation and reinjection technology under the same-well injection-production well is mature day by day, the technology can directly treat high-water-content produced liquid underground, a large amount of invalid water is prevented from being conveyed to the ground, reinjection recycling in a shaft is realized, the lifting energy consumption and the operation cost can be greatly reduced, the economic effective exploitation lower limit of the high-water-content oil field is reduced, the production life of the oil well is prolonged, and a new technology is provided for the economic exploitation of the high-water-content oil field.
The underground cyclone separation system is a system in the same-well injection and production process, and is generally designed to be an underground static cyclone applied to the underground to separate and treat produced liquid in a shaft. The problems in the prior art are that: due to the structural characteristics and the working mode of the static hydrocyclone, the static hydrocyclone is limited in further improving the separation efficiency, and particularly when the static hydrocyclone is used for separating high-viscosity media (such as thick oil), the viscosity of the working media is high, the internal friction resistance is high, the pressure loss is increased, and the special production requirements of an oil field site are difficult to meet. In practice, dynamic cyclones are also used, which are mostly rotated by a part of a static cyclone driven by an external motor. However, the additional power equipment also causes the problems of high energy consumption, easy damage of rotating parts, unreliable sealing, easy abrasion and the like.
Disclosure of Invention
In order to solve the technical problems mentioned in the background technology, the invention provides a screw pump downhole dynamic cyclone separation system, which can be applied to drive a cyclone outer cylinder to rotate through a screw pump well rotating shaft in a well, so that the cyclone dynamically rotates to generate a strong centrifugal force field, the cyclone centrifugal separation is carried out on immiscible two-phase mixed liquid of oil, water and the like with different densities, the separated low-density oil phase is lifted to the ground, and the water phase can be reinjected to an underground reinjection layer for recycling. The separation system has the advantages of high separation strength, high separation efficiency, low separation cost, small radial size, compact structure, convenience in operation and the like.
The technical scheme of the invention is as follows: the screw pump downhole dynamic cyclone separation system comprises an outer sleeve 4, a stator 2, a cyclone overflow pipe 9, a cyclone cavity 14, a cyclone underflow pipe 19 and a cyclone inner cone 13, and is characterized in that:
the cyclone separation system also comprises a screw shaft rotor 3, an overflow oil delivery branch pipe 7, a first bearing 8, a second bearing 17 and a second bearing filling ring 18.
Wherein, the inner wall surface of the outer sleeve 4 is provided with wall surface array openings 10; the inner wall surface of the outer sleeve 4, the first bearing 8, the second bearing 17, the second bearing filling ring 18, the outer wall of the cyclone overflow pipe 9, the outer wall of the cyclone cavity 14, the cyclone outer cone section 16 and the cyclone underflow pipe 19 jointly form a liquid inlet cavity; the liquid inlet cavity is converged with oil-water mixed liquid entering from the wall surface array opening 10.
The cyclone cavity 14 is formed by sequentially connecting and enclosing a cyclone cylindrical section 12, a cyclone inner cone 13 and a cyclone outer cone section 16, and a cyclone rectangular tangential inlet 11 is arranged on the side wall of the top of the cyclone cylindrical section 12; the top axle center of the cyclone cylinder section 12 is fixed with a cyclone inner cone 13.
The screw shaft rotor 3, the overflow oil delivery branch pipe 7, the overflow pipe 9 of the cyclone, the inner cone 13 of the cyclone, the rotational flow cavity 14, the outer cone section 16 and the underflow pipe 19 are sequentially and fixedly connected on the same central axis to form an integral rotating structural part which is driven by the screw shaft rotor 3 to rotate integrally; the rectangular tangential inlet 11 of the cyclone is opposite to the spiral direction of rotation, and is used for ensuring that the rotation direction of fluid entering the spiral flow cavity 14 is consistent with the spiral direction of the screw shaft rotor 3, so that a spiral flow centrifugal separation flow field is formed.
The stator 2 is matched with an overflow oil delivery branch pipe 7 and a screw shaft rotor 3 at the upper part of an overflow pipe 9 of the cyclone to form an oil collection cavity 6 and a spiral oil delivery gap 5 for enabling oil phase which flows into an inlet 15 of a central overflow pipe after centrifugal separation to flow out, and water phase which is centrifugally separated enters a underflow pipe 19 of the cyclone and flows into a water collection cavity 21 through an underflow round hole outlet 20.
The outer sleeve 4 and the overflow pipe 9 of the cyclone are in transition connection through a first bearing 8, and the first bearing 8 is close to the stator 2 above and is in sealing connection with the inner side of the outer sleeve 4; the outer sleeve 4 and the cyclone underflow pipe 19 are sealingly connected by a second bearing 17 and a second bearing packing ring 18 located at the intersection of the cyclone outer cone section 16 and the cyclone underflow pipe 19.
The invention has the following beneficial effects: firstly, the screw shaft rotor, the overflow oil delivery branch pipe, the overflow pipe of the cyclone, the inner cone, the rotational flow cavity, the outer cone section and the underflow pipe are sequentially and fixedly connected on the same central axis through the structural design to form an integral rotating structural member, and the integral rotating structural member is driven by the screw to integrally rotate, so that the dynamic separation of oil and water in a well can be realized; secondly, the power for realizing the dynamic rotation of the swirler comes from the rotation of a rotating shaft of the screw pump, so that the rotating speed of the downhole dynamic swirler can be directly controlled and adjusted by the ground; thirdly, a structure that the rectangular tangential inlet of the cyclone is opposite to the spiral rotation direction is designed, so that the rotation direction of fluid entering the cyclone cavity can be effectively ensured to be consistent with the spiral direction of the screw, and a cyclone centrifugal separation flow field is formed; in addition, overall structure is novel, and equipment size is little, and conventional pit shaft does not have external moving equipment, and the reliability is high, and the current cyclone separation equipment separation effect of phase comparison has stronger centrifugal separation intensity, therefore separates purer, and the advantage is outstanding, to being applied to fields such as oil field production, has considerable popularization and application prospect.
Description of the drawings:
FIG. 1 is a schematic structural diagram of a screw pump downhole dynamic cyclone separation system of the invention.
FIG. 2 is a schematic diagram of fluid flow and phase separation inside the screw pump downhole dynamic cyclonic separation system, wherein arrows indicate the direction of fluid flow entering the system.
FIG. 3 is a schematic cross-sectional view of the structure of FIG. 1A-A.
FIG. 4 is a schematic cross-sectional view of the structure of FIG. 1B-B.
Fig. 5 is a schematic cross-sectional structure of fig. 1C-C.
FIG. 6 is a cross-sectional structural view of FIGS. 1D-D, wherein dashed arrows indicate screw pump handedness.
Fig. 7 is a schematic cross-sectional view of fig. 1E-E.
FIG. 8 is a schematic diagram of the screw pump downhole dynamic cyclone of the present invention connected with a screw shaft rotor for integral rotation, wherein the dotted line arrows indicate screw pump rotation directions, and the solid line arrows indicate fluid inlet directions into a tangential inlet.
Figure 1-oil phase spiral outlet; 2-a stator; 3-screw shaft rotation; 4-an outer sleeve; 5-a spiral oil transportation gap formed by the stator and the screw shaft rotor; 6-oil collecting cavity; 7-overflow oil transportation branch pipe; 8-a first bearing; 9-a cyclone overflow tube; 10-opening an array of oil sleeves; 11-a rectangular tangential inlet to the cyclone; 12-a cyclone cylindrical section; 13-inner cone of cyclone; 14-a vortex chamber; 15-central overflow pipe inlet; 16-the swirler outer cone section; 17-a second bearing; 18-a second bearing filler ring; 19-a cyclone underflow pipe; 20-underflow circular hole outlet; 21-water collecting cavity.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
the objects of the invention are first described as follows: the underground rotary working condition of the screw pump is fully utilized, the underground oil-water two-phase dynamic cyclone separation is realized by innovative design (taking the oil-water two-phase as an example, the separation is not limited to the oil-water two-phase), the problems of low separation efficiency such as small oil-water density difference, small dispersed phase oil drop particles, high continuous phase viscosity and the like in the existing underground separation technology are solved, and the high-efficiency separation of the two phases is realized.
The screw pump downhole dynamic cyclone separation system has an integral structure in a slender cylindrical shape and can be matched and connected with an oil extraction shaft. As shown in fig. 1, the structure mainly includes: the cyclone oil-conveying device comprises a stator 2, a screw shaft rotor 3, an outer sleeve 4, an overflow oil-conveying branch pipe 7, a first bearing 8, a cyclone overflow pipe 9, an oil sleeve array opening 10, a cyclone rectangular tangential inlet 11, a cyclone cylindrical section 12, a cyclone inner cone 13, a cyclone outer cone section 16, a second bearing 17, a second bearing filling ring 18, a cyclone underflow pipe 19 and an underflow circular hole outlet 20.
Referring to fig. 2, a schematic diagram of fluid flow and two-phase separation is shown, wherein an arrow indicates a flow direction of a fluid entering a system, an oil-water mixed liquid to be separated in a shaft flows in through an oil casing array opening 10 and firstly enters a liquid inlet cavity, and the liquid inlet cavity is formed by enclosing the inner wall surface of an outer sleeve 4 with the wall surface array opening 10, a first bearing 8, a second bearing 17, a second bearing filling ring 18, the outer wall of a cyclone overflow pipe 9, the outer wall of a cyclone cavity 14, an outer cone section 16 of a cyclone and a cyclone underflow pipe 19. The pressure of the oil-water mixture in the liquid inlet cavity is higher relative to the pressure in the cyclone, and at the moment, the designed rectangular tangential inlet 11 is matched with the rotation of the cyclone to generate suction (a centrifugal motion central area is a low-pressure area) at the rectangular tangential inlet 11 and in the cyclone, so that the oil-water mixture in the liquid inlet cavity enters the cyclone inner vortex cavity 14 along the rectangular tangential inlet 11 under the dual actions of pressure driving and the centrifugal motion suction. To ensure that the fluid streamlines entering the cyclone move in the same direction as the cyclone rotates, the rectangular tangential inlet 11 is designed to open in the opposite direction to the cyclone rotation, as shown in fig. 8, wherein the dotted arrow indicates the screw pump rotation direction, and the solid arrow indicates the direction of fluid entering the tangential inlet. The cyclone cavity 14 is formed by sequentially connecting and enclosing a cyclone cylindrical section 12, a cyclone inner cone 13 and a cyclone outer cone section 16, the cyclone cavity 14 is a two-phase centrifugal separation generation area, under the rotation of an outer wall surface and the flow guiding effect of the rectangular tangential inlet 11, oil-water mixed liquid entering the cyclone cavity 14 can do rotary circular motion in the cyclone cavity in a high-speed jet mode, the oil-water two phases are different in density, the centrifugal force applied to a light phase oil phase is small, the light phase oil phase can move to the central area of the cyclone along with the rotation, and a heavy phase water phase is subjected to a larger centrifugal force and gradually moves to the side wall of the cyclone. The wall surface taper structure design of the cyclone inner cone 13 of the cyclone cavity component can play a role in stabilizing the liquid inlet fluid flow field and gathering and collecting light phases to the side wall of the cyclone inner cone.
After the process of cyclone centrifugal separation in the cyclone cavity 14, the light phase oil collected to the center after separation sequentially enters an overflow pipe 9, an oil collecting cavity 6, an overflow oil delivery branch pipe 7 and a spiral oil delivery gap 5 formed by a stator and a screw shaft rotor, and finally flows out from an oil phase spiral outlet 1; the separated water phase enters the cyclone underflow pipe 19 along the side wall of the cyclone outer cone section 16 and flows into the water collection chamber 21 through the underflow circular hole outlet 20.
In order to guide the oil phase collected and flowing into the overflow pipe 9 to the oil collecting cavity 6, a transitional connecting part, namely an overflow oil conveying branch pipe 7 is designed, and the oil phase is obliquely inserted into the oil collecting cavity 6 from the bottom center through four inclined pipe holes, so that the oil phase of the central overflow pipe 9 can be conveniently guided into the oil collecting cavity 6; the oil phase entering the oil collecting cavity 6 enters the spiral oil conveying gap 5 under the driving of the rotation of the screw shaft rotor to be pressurized and then conveyed to other manifolds or the ground.
In addition, the overall rotation motion of the outer wall of the cyclone can also promote oil and water in the liquid inlet cavity 14 to follow the circular motion, and at the moment, light phase oil can move towards the outer wall of the central cyclone, so that a certain coalescence effect can be achieved, and the separation effect is better compared with that of a static cyclone or a sedimentation separation device.
The system drives the outer barrel of the cyclone to rotate by depending on the rotating shaft core of the screw pump well, so that the cyclone dynamically rotates to generate a strong centrifugal force field, and the cyclone centrifugal separation is carried out on the immiscible two-phase mixed liquid of oil, water and the like with different densities. The system has the advantages that the screw rod drives the screw rod to rotate, the power structure is simplified, meanwhile, the spiral cavity of the screw rod sleeve is utilized to transmit the oil phase, the equipment volume is reduced, the dynamic cyclone separation of oil and water phases in the well is realized, the integral separation efficiency of the two phases can be improved, and the system is suitable for the working conditions of immiscible two-phase difficult separation, such as small density difference, small dispersed oil drop particles, high continuous phase viscosity and the like.
The invention provides a new idea for the design of two-phase separation equipment, promotes the development of separation technology, and simultaneously improves the underground cyclone separation and same-well reinjection technology to a new level. The equipment can also be applied to the centrifugal separation treatment of immiscible two-phase media in the industries of petroleum, chemical engineering, municipal environmental protection and the like, such as sewage deoiling, sewage degassing, underground coal washing sewage liquid-solid separation and the like.
Claims (1)
1. The utility model provides a screw pump developments hydrocyclone separation system in pit, includes interior awl (13) of outer sleeve (4), stator (2), swirler overflow pipe (9), whirl chamber (14), swirler underflow pipe (19) and swirler, its characterized in that:
the cyclone separation system also comprises a screw shaft rotor (3), an overflow oil delivery branch pipe (7), a first bearing (8), a second bearing (17) and a second bearing filling ring (18);
wherein, the inner wall surface of the outer sleeve (4) is provided with wall surface array openings (10); the inner wall surface of the outer sleeve (4), the first bearing (8), the second bearing (17), the second bearing filling ring (18), the outer wall of the overflow pipe (9) of the cyclone, the outer wall of the cyclone cavity (14), the outer cone section (16) of the cyclone and the underflow pipe (19) of the cyclone form a liquid inlet cavity together; the liquid inlet cavity is used for converging oil-water mixed liquid entering from the wall surface array opening (10);
the cyclone cavity (14) is formed by sequentially connecting and enclosing a cyclone cylindrical section (12), a cyclone inner cone (13) and a cyclone outer cone section (16), and a cyclone rectangular tangential inlet (11) is arranged on the side wall of the top of the cyclone cylindrical section (12); an inner cone (13) of the cyclone is fixed at the top axle center of the cylindrical section (12) of the cyclone;
the screw shaft rotor (3), the overflow oil delivery branch pipe (7), the overflow pipe (9) of the cyclone, the inner cone (13) of the cyclone, the cyclone cavity (14), the outer cone section (16) and the underflow pipe (19) are sequentially and fixedly connected on the same central axis to form an integral rotating structural part which is driven by the screw shaft rotor (3) to rotate integrally; the rectangular tangential inlet (11) of the cyclone is opposite to the spiral rotation direction and is used for ensuring that the rotation direction of fluid entering the cyclone cavity (14) is consistent with the rotation direction of the screw shaft rotor (3) to form a cyclone centrifugal separation flow field;
the stator (2) is matched with the overflow oil delivery branch pipe (7) and the screw shaft rotor (3) at the upper part of the overflow pipe (9) of the cyclone to form an oil collection cavity (6) and a spiral oil delivery gap (5) for enabling oil phase which flows into the inlet (15) of the central overflow pipe to flow out after centrifugal separation, and water phase which is centrifugally separated enters the underflow pipe (19) of the cyclone and flows into the water collection cavity (21) through the underflow circular hole outlet (20);
the outer sleeve (4) and the overflow pipe (9) of the cyclone are in transition connection through a first bearing (8), and the first bearing (8) is close to the stator (2) above and is in sealing connection with the inner side of the outer sleeve (4); the outer sleeve (4) is hermetically connected with the cyclone underflow pipe (19) through a second bearing (17) and a second bearing filling ring (18) which are positioned at the joint of the cyclone outer cone section (16) and the cyclone underflow pipe (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896114.9A CN113617543B (en) | 2021-08-05 | 2021-08-05 | A Downhole Dynamic Cyclone Separation System of Screw Pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110896114.9A CN113617543B (en) | 2021-08-05 | 2021-08-05 | A Downhole Dynamic Cyclone Separation System of Screw Pump |
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| Publication Number | Publication Date |
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| CN113617543A true CN113617543A (en) | 2021-11-09 |
| CN113617543B CN113617543B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110896114.9A Active CN113617543B (en) | 2021-08-05 | 2021-08-05 | A Downhole Dynamic Cyclone Separation System of Screw Pump |
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| Country | Link |
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| CN (1) | CN113617543B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117703342A (en) * | 2023-12-28 | 2024-03-15 | 东北石油大学 | Same-well injection and production underground Shan Beng suction type coalescent cyclone oil-water separation device |
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|---|---|---|---|---|
| US6082452A (en) * | 1996-09-27 | 2000-07-04 | Baker Hughes, Ltd. | Oil separation and pumping systems |
| US6189613B1 (en) * | 1998-09-25 | 2001-02-20 | Pan Canadian Petroleum Limited | Downhole oil/water separation system with solids separation |
| CN102784728A (en) * | 2012-08-16 | 2012-11-21 | 中国石油天然气股份有限公司 | Downhole secondary cyclone separator |
| CN104815768A (en) * | 2015-05-08 | 2015-08-05 | 东北石油大学 | Axial-flow-type inverted inlet flow channel swirler |
| CN107473329A (en) * | 2017-10-12 | 2017-12-15 | 大庆油田有限责任公司 | Underground three swirler separator |
| CN111350487A (en) * | 2020-05-07 | 2020-06-30 | 东北石油大学 | Jet pump-double screw pump same-well injection-production combined lifting system and method |
| CN112832734A (en) * | 2020-12-30 | 2021-05-25 | 东北石油大学 | A gas-liquid-liquid three-stage cyclone separation device in the same well injection and production wellbore |
-
2021
- 2021-08-05 CN CN202110896114.9A patent/CN113617543B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082452A (en) * | 1996-09-27 | 2000-07-04 | Baker Hughes, Ltd. | Oil separation and pumping systems |
| US6189613B1 (en) * | 1998-09-25 | 2001-02-20 | Pan Canadian Petroleum Limited | Downhole oil/water separation system with solids separation |
| CN102784728A (en) * | 2012-08-16 | 2012-11-21 | 中国石油天然气股份有限公司 | Downhole secondary cyclone separator |
| CN104815768A (en) * | 2015-05-08 | 2015-08-05 | 东北石油大学 | Axial-flow-type inverted inlet flow channel swirler |
| CN107473329A (en) * | 2017-10-12 | 2017-12-15 | 大庆油田有限责任公司 | Underground three swirler separator |
| CN111350487A (en) * | 2020-05-07 | 2020-06-30 | 东北石油大学 | Jet pump-double screw pump same-well injection-production combined lifting system and method |
| CN112832734A (en) * | 2020-12-30 | 2021-05-25 | 东北石油大学 | A gas-liquid-liquid three-stage cyclone separation device in the same well injection and production wellbore |
Non-Patent Citations (1)
| Title |
|---|
| 丁文刚;刘琳;杜晓霞;章宝玲;杨国威;吴广;赵立新;: "海上井下油水分离旋流器结构设计及优化研究" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117703342A (en) * | 2023-12-28 | 2024-03-15 | 东北石油大学 | Same-well injection and production underground Shan Beng suction type coalescent cyclone oil-water separation device |
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| Publication number | Publication date |
|---|---|
| CN113617543B (en) | 2023-04-25 |
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