CN203742579U - Marine high-flow underground oil-water separator adopting parallel-connection hydrocyclones - Google Patents

Marine high-flow underground oil-water separator adopting parallel-connection hydrocyclones Download PDF

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Publication number
CN203742579U
CN203742579U CN201420116445.1U CN201420116445U CN203742579U CN 203742579 U CN203742579 U CN 203742579U CN 201420116445 U CN201420116445 U CN 201420116445U CN 203742579 U CN203742579 U CN 203742579U
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China
Prior art keywords
cyclone
disk
runner
bipyramid
overflow
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Expired - Fee Related
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CN201420116445.1U
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Chinese (zh)
Inventor
李增亮
康强
赵传伟
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China University of Petroleum East China
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China University of Petroleum East China
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Abstract

The utility model relates to equipment for underground oil-water separation as well as injection and production in the same well in the technical field of offshore oil field production, in particular to a marine high-flow underground oil-water separator adopting parallel-connection hydrocyclones. The marine high-flow underground oil-water separator is applicable to production of high-flow offshore oil wells, and the whole set of separation device is divided into three layers which are arranged in parallel. The marine high-flow underground oil-water separator has the advantages as follows: the parallel connection of small-flow hydrocyclones is adopted, so that the separating efficiency of the device is greatly improved; underground finite space and the structure characteristic of a single hydrocyclone are combined, a tail tube end of a first hydrocyclone and a cylindrical end of a second hydrocyclone are located on the same plane, tail tubes of the first hydrocyclone and the second hydrocyclone and the cylindrical end of a third hydrocyclone are located on the same plane, accordingly, the number of the small-flow hydrocyclones is increased, and the treatment capacity of the whole set of device is improved; and layers of the whole set of device are nested together, so that the reliability is higher, the structure is stable, the safety performance is high, and space is saved.

Description

Cyclone is parallel marine with large flow downhole separation system
Technical field
The utility model relates to the downhole oil-water separation same well production-injection equipment in marine oil field production technique field, and particularly a kind of cyclone is parallel marine with large flow downhole separation system.
Background technology
Along with offshore oilfield exploitation enters high water-cut stage, add the strategy of " the wide-spaced well high yield " taked early stage, cause the contradiction between cost of production and crude output in offshore oilfield manufacturing process to be increasingly sharpened.In order to keep the oil production of offshore oilfield every day constant, only have to increase and adopt liquid measure, if these Produced Liquids are all given rise to offshore platform and process, re-injection more afterwards, has increased the burden of water processing establishment and lifting technology greatly, and energy consumption also increases greatly, simultaneously due to ocean platform limited space, more water processing establishment can not be installed, and therefore in the present circumstance, the research and development that can improve the novel technical method that device separative efficiency and disposal ability start are extremely urgent.Correlative study both at home and abroad shows, by use oily-water seperating equipment in down-hole, in increasing crude output, can also greatly reduce surface water rate.
Although downhole oil-water separation technology is the application of comparative maturity on land, traditional downhole oil-water separation system is all the downhole hydraulic cyclone of configuration single-stage or plural serial stage form, can meet to a certain extent separative efficiency requirement.But for land or the high oil well of offshore oilfield production fluid amount, the problem of single-stage or plural serial stage hydrocyclone disposal ability deficiency starts to manifest, on the one hand, for adapting to the high liquid measure of processing, must configure the downhole hydraulic cyclone of large nominal diameter; On the other hand, the separative efficiency of hydrocyclone can decline along with the increase of nominal diameter.Consider, the hydrocyclone group of single-stage or plural serial stage is also not suitable for the oil well of high yield liquid measure.
There is the downhole oil-water separation device of cyclone parallel connection in current domestic patent, but down-hole limited space, the cylindrical end of a cluster cyclone of this parallel connection all in one plane, the quantity that causes down-hole to be furnished with cyclone is very restricted, waste to a great extent space, down-hole, reduced separative efficiency and the disposal ability of system.Based on above-mentioned, a kind of cyclone is proposed parallel marine with large flow downhole separation system, it is very big takes full advantage of the confined space of down-hole, is applicable to oil well (the processing flow Q=1000m of the marine large flow of exploitation 3/ d), produce beneficial effect.
Utility model content
The technical problems to be solved in the utility model is:, the connected mode between the distribution of three level cyclone separator groups, configuration, the each several part of overflow lifting oil pipe and the design of inner flow passage structure, the technical scheme of employing is as follows:
A kind of cyclone is parallel marine with large flow downhole separation system, by oil transportation oil pipe, electric pump unit, intersection runner joint, intersection runner, bipyramid cyclone A, middle overflow lifting oil pipe, bipyramid cyclone B, underflow stream lifting oil pipe, bipyramid cyclone C, producing zone, water filling layer, overflow conflux disk, upper shunting disk, upper shell, upper connection housing, middle shell, lower support dish, lower house, positioning support support plate, positioning support stay tube, upper supporting disk, middle overflow conflux disk, middle shunting disk, middle supporting disk, underflow stream conflux disk, lower shunting disk, bipyramid cyclone D composition, it is characterized in that described electric pump unit is plugged in the runner of opening runner joint upper left side, intersection, oil transportation oil pipe is plugged in the runner of opening runner joint upper right side, intersection, intersection runner shell is threaded connection and is plugged in the runner of opening runner joint lower end, intersection, runner lower end, intersection is connected by flange with upper shell, and the housing of described package unit is followed successively by upper shell from top to bottom, upper connection housing, middle shell, lower house, is threaded connection between mutually, and the inner separator of described package unit comprises three layers: first floor eliminator assembly, second layer cyclone assembly, the 3rd layer of cyclone assembly, described package unit outside is provided with producing zone and water filling layer.
Above-mentioned upper shell, middle shell, lower house, these three housing inner chambers are provided with stair-stepping projection.
Above-mentioned first floor eliminator assembly comprises bipyramid cyclone A, middle overflow lifting oil pipe, overflow conflux disk, upper shunting disk, upper supporting disk, described first floor a cluster cyclone is made up of single bipyramid cyclone A, install with upper shell coaxial line, described upper shell inner chamber is followed successively by overflow conflux disk on from top to bottom, upper shunting disk, upper supporting disk, left side has annular poroid runner b, runner e, runner f, three annular channel coaxial line alignment are installed, described overflow conflux disk has the annular space runner d of two circular arcs, described bipyramid cyclone A cylindrical end is inserted in the hole of opening in the middle of supporting disk, described middle overflow lifting oil pipe is threaded connection and is inserted in the hole that shunting disk left end opens, lower end is threaded connection and is inserted in the hole that middle overflow conflux disk left end opens, in middle hole of opening through upper supporting disk left end, described overflow conflux disk upper end cylinder runner is communicated with runner lower end, intersection cylinder runner.
Above-mentioned second layer eliminator assembly comprises bipyramid cyclone B, underflow stream lifting oil pipe, middle overflow conflux disk, middle shunting disk, middle supporting disk, described second layer a cluster cyclone is composed in parallel by four bipyramid cyclone B, described middle shell inner chamber is followed successively by middle overflow conflux disk on from top to bottom, middle shunting disk, middle supporting disk, cylindrical end is inserted in the hole that middle supporting disk opens, described underflow stream lifting oil pipe upper end is threaded connection and is inserted in the hole that middle shunting disk left end opens, lower end is threaded connection and is inserted in the hole that underflow stream conflux disk left end opens, in middle hole of opening through middle supporting disk left end.
The 3rd layer of above-mentioned eliminator assembly comprises bipyramid cyclone C, lower support dish, underflow stream conflux disk, lower shunting disk, bipyramid cyclone D, described the 3rd layer of a cluster cyclone composed in parallel by four bipyramid cyclone C and four bipyramid cyclone D, cylindrical end is inserted in the hole that lower support dish opens, described lower housing cavity is followed successively by underflow stream conflux disk on from top to bottom, described lower shunting disk and all have 13 holes above lower support dish.
Above-mentioned lower housing cavity lower end is provided with positioning support support plate and positioning support stay tube, supports a whole set of interior arrangement, has 13 holes on described positioning support support plate.
Above-mentioned a whole set of a cluster cyclone is composed in parallel by bipyramid cyclone A, bipyramid cyclone B, bipyramid cyclone C, bipyramid cyclone D, the entrance of three layers of cyclone is interconnected in same annular space pipeline, and described a whole set of bipyramid a cluster cyclone tail pipe end face is on a plane.
The utlity model has following advantage: adopt the parallel connection of low discharge cyclone, promoted greatly the separative efficiency of device; It combines the design feature of the confined space of down-hole and single cyclone, the tail pipe end of first order cyclone and the cylindrical end of second level cyclone are on a plane, the cylindrical end of the tail pipe of the first order and second level cyclone and the cyclone of the third level is on a plane, so arrange, increase the quantity of low discharge cyclone, increased the disposal ability of package unit; Package unit is nested together layer by layer, and reliability is higher, Stability Analysis of Structures, security performance are high, save space.
Brief description of the drawings
Fig. 1: the general structure schematic diagram of the utility model device;
Fig. 2: the general structure sectional view of the utility model device;
Fig. 3: A-A sectional view in Fig. 2;
Fig. 4: B-B sectional view in Fig. 2;
Fig. 5: C-C sectional view in Fig. 2;
Fig. 6: D-D sectional view in Fig. 2;
Fig. 7: E-E sectional view in Fig. 2;
Fig. 8: F-F sectional view in Fig. 2;
Fig. 9: G-G sectional view in Fig. 2;
Figure 10: H-H sectional view in Fig. 2;
Figure 11: I-I sectional view in Fig. 2;
Figure 12: J-J sectional view in Fig. 2;
Figure 13: K-K sectional view in Fig. 2;
Figure 14: L-L sectional view in Fig. 2;
Figure 15: M-M sectional view in Fig. 2;
Figure 16: N-N sectional view in Fig. 2;
Figure 17: O-O sectional view in Fig. 2.
Symbol description
1. oil transportation oil pipe, 2. electric pump unit, 3. intersection runner joint, 4. intersection runner, 5. bipyramid cyclone A, 6. overflow lifting oil pipe in, 7. bipyramid cyclone B, 8. underflow stream lifting oil pipe, 9. bipyramid cyclone C, 10. producing zone, 11. water filling layers, 12. overflow conflux disks, shunting disk on 13., 14. upper shells, 15. upper connection housings, 16. middle shells, 17. lower support dishes, 18. lower houses, 19. positioning support support plates, 20. stay pipes, supporting disk on 21., overflow conflux disk in 22., shunting disk in 23., supporting disk in 24., 25. underflow stream conflux disks, 26. times shunting disks, 27. bipyramid cyclone D.
A-o is flow channel for liquids.
detailed description of the invention
Below in conjunction with accompanying drawing and example, the utility model is described in further detail:
As shown in Fig. 1-17, a kind of cyclone is parallel marine with large flow downhole separation system, by oil transportation oil pipe 1, electric pump unit 2, intersection runner joint 3, intersection runner 4, bipyramid cyclone A5, middle overflow lifting oil pipe 6, bipyramid cyclone B7, underflow stream lifting oil pipe 8, bipyramid cyclone C9, producing zone 10, water filling layer 11, overflow conflux disk 12, upper shunting disk 13, upper shell 14, upper connection housing 15, middle shell 16, lower support dish 17, lower house 18, positioning support support plate 19, positioning support stay tube 20, upper supporting disk 21, middle overflow conflux disk 22, middle shunting disk 23, middle supporting disk 24, underflow stream conflux disk 25, lower shunting disk 26, bipyramid cyclone D27 composition, it is characterized in that described electric pump unit 1 is plugged in the runner of opening runner joint 3 upper left sides, intersection, oil transportation oil pipe 1 is plugged in the runner of opening runner joint 3 upper right sides, intersection, runner 4 shells in intersection are threaded connection and are plugged in the runner of opening runner joint 3 lower ends, intersection, runner 4 lower ends in intersection are connected by flange with upper shell 14, and the housing of described package unit is followed successively by upper shell 14 from top to bottom, upper connection housing 15, middle shell 16, lower house 18, is threaded connection between mutually, and the inner separator of described package unit comprises three layers: first floor eliminator assembly, second layer cyclone assembly, the 3rd layer of cyclone assembly, described package unit outside is provided with producing zone 10 and water filling layer 11.
Preferred upper shell 14, middle shell 16, lower house 18, these three housing inner chambers are provided with stair-stepping projection.
Preferred first floor eliminator assembly comprises bipyramid cyclone A5, middle overflow lifting oil pipe 6, overflow conflux disk 12, upper shunting disk 13, upper supporting disk 21, described first floor a cluster cyclone is made up of single bipyramid cyclone A5, install with upper shell 14 coaxial lines, described upper shell 14 inner chambers are followed successively by overflow conflux disk 12 on from top to bottom, upper shunting disk 13, upper supporting disk 21, left side has annular poroid runner b, runner e, runner f, three annular channel coaxial line alignment are installed, described overflow conflux disk 12 has the annular space runner d of two circular arcs, described bipyramid cyclone A5 cylindrical end is inserted in the hole of opening in the middle of supporting disk 21, described middle overflow lifting oil pipe 6 is threaded connection and is inserted in the hole that shunting disk 13 left ends open, lower end is threaded connection and is inserted in the hole that middle overflow conflux disk 22 left ends open, in middle hole of opening through upper supporting disk 21 left ends, described overflow conflux disk 12 upper end cylinder runners are communicated with intersection runner 4 lower end cylinder runners.
Preferred second layer eliminator assembly comprises bipyramid cyclone B7, underflow stream lifting oil pipe 8, middle overflow conflux disk 22, middle shunting disk 23, middle supporting disk 24, described second layer a cluster cyclone is composed in parallel by four bipyramid cyclone B7, described middle shell 16 inner chambers are followed successively by middle overflow conflux disk 22 on from top to bottom, middle shunting disk 23, middle supporting disk 24, cylindrical end is inserted in the hole that middle supporting disk 24 opens, described underflow stream lifting oil pipe 8 upper ends are threaded connection and are inserted in the hole that middle shunting disk 23 left ends open, lower end is threaded connection and is inserted in the hole that underflow stream conflux disk 25 left ends open, in middle hole of opening through middle supporting disk 24 left ends.
Preferred the 3rd layer of eliminator assembly comprises bipyramid cyclone C9, lower support dish 17, underflow stream conflux disk 25, lower shunting disk 26, bipyramid cyclone D27, described the 3rd layer of a cluster cyclone composed in parallel by four bipyramid cyclone C9 and four bipyramid cyclone D27, cylindrical end is inserted in the hole that lower support dish 17 opens, described lower house 18 inner chambers are followed successively by underflow stream conflux disk 25 on from top to bottom, and described lower shunting disk 26 and lower support dish 17 all have 13 holes above.
Preferred lower house 18 inner chamber lower ends are provided with positioning support support plate 19 and positioning support stay tube 20, support a whole set of interior arrangement, have 13 holes on described positioning support support plate 19.
Preferred a whole set of a cluster cyclone is composed in parallel by bipyramid cyclone A5, bipyramid cyclone B7, bipyramid cyclone C9, bipyramid cyclone D27, the entrance of three layers of cyclone is interconnected in same annular space pipeline, and described a whole set of bipyramid a cluster cyclone tail pipe end face is on a plane.
Workflow is, filled arrows is the flow direction of oil water mixture, modest arrow is to separate fuel-displaced flow direction, process fluid flow is that oil water mixture from producing zone 10 is after 2 superchargings of electric pump unit, through runner a, runner b, runner e, after runner d, be divided into two-way, the first via tangentially enters bipyramid cyclone A5 and flows and form spiral flow along cylindrical end wall eddy flow, High Rotation Speed flows downward and enters conical section, enter after conical section, because the diameter of section of cyclone diminishes gradually, the speed of mixed liquor eddy flow is accelerated gradually, it is large that produced simultaneously centrifugal force becomes too, the smaller oil of density flows to the lower axle center place of pressure, and form in axis centre the interior whirlpool upwards flowing, flowed out in annular space runner c by overfall, through the inner flow passage of intersection runner 4, given rise to ground by oil transportation oil pipe 1, the water that density is larger flows downward and is discharged to water filling layer 11 through tail pipe, the second tunnel is through runner f, middle shell 16 inner chambers, runner g, runner i, after entering annular space runner j, be also divided into two-way, one tunnel tangentially enters after four bipyramid cyclone B7 cylindrical end walls at a high speed, after separating, the larger water of density flows downward and is discharged to water filling layer 11 through tail pipe, the oil that density is less passes through cyclone overfall successively, h runner, middle overflow lifting oil pipe 6, after converging with first floor separating oil aqueous mixtures after annular space runner c, be lifted to ground, another road on the second tunnel is through runner k, runner l, runner n, after runner o, after at a high speed tangentially entering four bipyramid cyclone C9 and separating with the cylindrical end wall of four bipyramid cyclone D27, the water that density is larger is injected into water filling layer 11 through tail pipe, the oil that density is less converges at runner m from each overfall is discharged, after underflow stream lifting oil pipe 8 and the isolated oil of the second layer converge, be lifted to ground.

Claims (7)

1. cyclone is parallel marine with a large flow downhole separation system, by oil transportation oil pipe (1), electric pump unit (2), intersection runner joint (3), intersection runner (4), bipyramid cyclone A(5), middle overflow lifting oil pipe (6), bipyramid cyclone B(7), underflow stream lifting oil pipe (8), bipyramid cyclone C(9), producing zone (10), water filling layer (11), overflow conflux disk (12), upper shunting disk (13), upper shell (14), upper connection housing (15), middle shell (16), lower support dish (17), lower house (18), positioning support support plate (19), positioning support stay tube (20), upper supporting disk (21), middle overflow conflux disk (22), middle shunting disk (23), middle supporting disk (24), underflow stream conflux disk (25), lower shunting disk (26), bipyramid cyclone D(27) composition, it is characterized in that described electric pump unit (1) is plugged in the runner of opening intersection runner joint (3) upper left side, oil transportation oil pipe (1) is plugged in the runner of opening intersection runner joint (3) upper right side, intersection runner (4) shell is threaded connection and is plugged in the runner of opening intersection runner joint (3) lower end, intersection runner (4) lower end is connected by flange with upper shell (14), and the housing of described package unit is followed successively by upper shell (14) from top to bottom, upper connection housing (15), middle shell (16), lower house (18), is threaded connection between mutually, and the inner separator of described package unit comprises three layers: first floor eliminator assembly, second layer cyclone assembly, the 3rd layer of cyclone assembly, described package unit outside is provided with producing zone (10) and water filling layer (11).
2. the parallel sea of cyclone according to claim 1, with large flow downhole separation system, is characterized in that described upper shell (14), middle shell (16), lower house (18), and these three housing inner chambers are provided with stair-stepping projection.
3. cyclone according to claim 1 is parallel marine with large flow downhole separation system, it is characterized in that first floor eliminator assembly comprises bipyramid cyclone A(5), middle overflow lifting oil pipe (6), overflow conflux disk (12), upper shunting disk (13), upper supporting disk (21), described first floor a cluster cyclone is by single bipyramid cyclone A(5) form, install with upper shell (14) coaxial line, described upper shell (14) inner chamber is followed successively by overflow conflux disk (12) on from top to bottom, upper shunting disk (13), upper supporting disk (21), left side has annular poroid runner b, runner e, runner f, three annular channel coaxial line alignment are installed, described overflow conflux disk (12) has the annular space runner d of two circular arcs, described bipyramid cyclone A(5) cylindrical end is inserted in the hole of opening in the middle of supporting disk (21), described middle overflow lifting oil pipe (6) is threaded connection and is inserted in the hole that shunting disk (13) left end opens, lower end is threaded connection and is inserted in the hole that middle overflow conflux disk (22) left end opens, in middle hole of opening through upper supporting disk (21) left end, described overflow conflux disk (12) upper end cylinder runner is communicated with intersection runner (4) lower end cylinder runner.
4. cyclone according to claim 1 is parallel marine with large flow downhole separation system, it is characterized in that described second layer eliminator assembly comprises bipyramid cyclone B(7), underflow stream lifting oil pipe (8), middle overflow conflux disk (22), middle shunting disk (23), middle supporting disk (24), described second layer a cluster cyclone is by four bipyramid cyclone B(7) compose in parallel, described middle shell (16) inner chamber is followed successively by middle overflow conflux disk (22) on from top to bottom, middle shunting disk (23), middle supporting disk (24), cylindrical end is inserted in the hole that middle supporting disk (24) opens, described underflow stream lifting oil pipe (8) upper end is threaded connection and is inserted in the hole that middle shunting disk (23) left end opens, lower end is threaded connection and is inserted in the hole that underflow stream conflux disk (25) left end opens, in middle hole of opening through middle supporting disk (24) left end.
5. cyclone according to claim 1 is parallel marine with large flow downhole separation system, it is characterized in that described the 3rd layer of eliminator assembly comprises bipyramid cyclone C(9), lower support dish (17), underflow stream conflux disk (25), lower shunting disk (26), bipyramid cyclone D(27), described the 3rd layer of a cluster cyclone is by four bipyramid cyclone C(9) and four bipyramid cyclone D(27) compose in parallel, cylindrical end is inserted in the hole that lower support dish (17) opens, described lower house (18) inner chamber is followed successively by underflow stream conflux disk (25) on from top to bottom, described lower shunting disk (26) and lower support dish (17) all have 13 holes above.
6. cyclone according to claim 1 is parallel marine with large flow downhole separation system, it is characterized in that described lower house (18) inner chamber lower end is provided with positioning support support plate (19) and positioning support stay tube (20), support a whole set of interior arrangement, on described positioning support support plate (19), have 13 holes.
7. cyclone according to claim 1 is parallel marine with large flow downhole separation system, it is characterized in that a whole set of a cluster cyclone is by bipyramid cyclone A(5), bipyramid cyclone B(7), bipyramid cyclone C(9), bipyramid cyclone D(27) compose in parallel, the entrance of three layers of cyclone is interconnected in same annular space pipeline, and described a whole set of bipyramid a cluster cyclone tail pipe end face is on a plane.
CN201420116445.1U 2014-03-15 2014-03-15 Marine high-flow underground oil-water separator adopting parallel-connection hydrocyclones Expired - Fee Related CN203742579U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103835694A (en) * 2014-03-27 2014-06-04 中国石油大学(华东) Marine large-flow downhole oil-water separator with parallel type whirlcones
CN109356562A (en) * 2018-10-17 2019-02-19 青岛理工大学 Underground filter sand formula gas-liquid separation device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103835694A (en) * 2014-03-27 2014-06-04 中国石油大学(华东) Marine large-flow downhole oil-water separator with parallel type whirlcones
CN103835694B (en) * 2014-03-27 2017-02-15 中国石油大学(华东) Marine large-flow downhole oil-water separator with parallel type whirlcones
CN109356562A (en) * 2018-10-17 2019-02-19 青岛理工大学 Underground filter sand formula gas-liquid separation device
CN109356562B (en) * 2018-10-17 2020-08-07 青岛理工大学 Underground sand-filtering type gas-liquid separation device

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Granted publication date: 20140730

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