CN202451120U - High-flow underground oil-water separation and production-injection device for offshore oil production - Google Patents
High-flow underground oil-water separation and production-injection device for offshore oil production Download PDFInfo
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- CN202451120U CN202451120U CN2011205151230U CN201120515123U CN202451120U CN 202451120 U CN202451120 U CN 202451120U CN 2011205151230 U CN2011205151230 U CN 2011205151230U CN 201120515123 U CN201120515123 U CN 201120515123U CN 202451120 U CN202451120 U CN 202451120U
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Abstract
The utility model relates to a high-flow underground oil-water separation and production-injection device for offshore oil production and belongs to the technical field of petroleum exploitation equipment. The device comprises oil pipes, a cable, an upper control valve, an upper one-way valve, a lower one-way valve, an upper pump, a lower pump, an upper protector, a motor, a lower protector, an outer bypass pipe, an inhalator, a dual-stage swirler, a packer and a lower control valve, wherein the upper control valve, the upper one-way valve, the upper pump, the upper protector, the motor, the lower protector, the outer bypass pipe, the inhalator, the lower pump, the dual-stage swirler, the lower one-way valve, the packer and the lower control valve are connected with one another sequentially through the oil pipes and are coaxially arranged in a casing pipe sequentially from top to bottom; the cable extends into the casing pipe from the outside of the casing pipe and is communicated with the motor; and one end of the outer bypass pipe is communicated with the oil pipe between the upper pump and the upper protector and the other end of the outer bypass pipe is communicated with the dual-stage swirler. By application of the oil-water separation and production-injection device, the treatment quantity of offshore platform oil-water mixed liquid is greatly reduced, the petroleum exploitation cost is reduced and the economic benefit of the oil field is increased.
Description
Technical field
The utility model relates to a kind of offshore oil production and adopts dispensing device with big flow downhole oil-separated form water, belongs to the oil exploration equipment technical field.
Background technology
Along with continually developing of offshore oilfield, the water content of oil well rises gradually.For keeping output, have to adopt the way that improves lifting rate to delay the speed that oil production is successively decreased.At present, the most of block of offshore oilfield down-hole output liquid is moisture up to 80%～95%, and these output liquid need pass through and enter into next step operation after the surface water is handled.Following problems appears in the further increase along with water content: the one, and the fluid of the big flow of lifting need increase bigger power of motor, expends more electric energy; The 2nd, increase owing to give rise to the fluid water content on ground, water treatment technology becomes increasingly complex, and facility is more and more huger, and cost is increasingly high, has particularly aggravated particularly original space, ground with regard to the little contradiction in the space of limited offshore platform.
Above-mentioned factor has all caused the rising of oil field development cost, the decline of economic benefit.
Summary of the invention
The purpose of the utility model is to propose a kind of offshore oil production to adopt dispensing device with big flow downhole oil-separated form water, separates extraction liquid to realize the offshore oilfield down-hole with well, and the isolated water of re-injection gives rise to ground with oil, reduces the oil field development cost, increases economic efficiency.
The offshore oil production that the utility model proposes is adopted dispensing device with big flow downhole oil-separated form water; Comprise oil pipe, cable, go up control valve, go up one way valve, go up pump, go up protector, motor, protector, outer bypass pipe, inhalator, pump, twin-stage cyclone, one way valve, packer and following control valve down down down; Describedly go up control valve, go up one way valve, go up pump, go up protector, motor, down protector, outer bypass pipe, inhalator, down pump, twin-stage cyclone, one way valve, packer link to each other through oil pipe with following control valve successively down, and coaxial successively from top to bottom being installed in the sleeve pipe; Described cable stretches into sleeve pipe outside sleeve pipe, and is connected with motor, and an end of described outer bypass pipe is connected with oil pipe between last pump and the last protector, and the other end of outer bypass pipe is connected with the twin-stage cyclone.
Above-mentioned oil-separated form water is adopted the twin-stage cyclone in the dispensing device; Form by one-level cyclone, second cyclone, internal bypass pipe and dividing plate; Described one-level cyclone and second cyclone are coaxial to be installed in series in the housing of twin-stage cyclone, and dividing plate places between one-level cyclone and the second cyclone; The outlet of described one-level cyclone is passed dividing plate and is connected with second cyclone; One end of described internal bypass pipe is connected with described outer bypass pipe, and the other end of internal bypass pipe is connected with the overflow outlet of one-level cyclone and the overflow outlet of second cyclone respectively.
The offshore oil production that the utility model proposes is adopted dispensing device with big flow downhole oil-separated form water, and the oil-water mixed liquid that can make the extraction layer of big flow is through after pressurization, separating, and water is recycled into the water filling layer, and oil is given rise to ground through bypass pipe by pump.The treating capacity and the separative efficiency in oil field have been guaranteed.The application that the offshore oil production that the utility model proposes is adopted dispensing device with big flow downhole oil-separated form water has significantly reduced the treating capacity of offshore platform oil-water mixed liquid, has reduced cost of oil production, raising oilfield economic benefit.
Description of drawings
Fig. 1 is dispensing device is adopted in the offshore oil production of the utility model proposition with big flow downhole oil-separated form water a structural representation.
Fig. 2 is the structural representation that oil-separated form water shown in Figure 1 is adopted twin-stage cyclone in the dispensing device.
Among Fig. 1 and Fig. 2, the 1st, oil pipe, the 2nd, cable, the 3rd, last control valve, the 4th, last one way valve, the 5th, last pump; The 6th, last protector, the 7th, motor, the 8th, following protector, the 9th, outer bypass pipe, the 10th, inhalator, the 11st, following pump; The 12nd, twin-stage cyclone inlet, the 13rd, twin-stage cyclone, the 14th, the outlet of twin-stage cyclone, the 15th, following one way valve, the 16th, packer, the 17th, following control valve; The 18th, sleeve pipe, the 19th, upper cover plate, the 20th, cyclone overflow outlet, the 21st, internal bypass pipe, the 22nd, one-level cyclone; The 23rd, the outlet of cyclone underflow pipe, the 24th, the outlet of one-level cyclone, the 25th, dividing plate, the 26th, second cyclone, the 27th, lower cover.
The specific embodiment
The offshore oil production that the utility model proposes is adopted dispensing device with big flow downhole oil-separated form water; Its structure is as shown in Figure 1, comprises oil pipe 1, cable 2, goes up control valve 3, goes up one way valve 4, goes up pump 5, goes up protector 6, motor 7, protector 8, outer bypass pipe 9, inhalator 10, pump 11, twin-stage cyclone 13, one way valve 15, packer 16 and following control valve 17 down down down.Oil pipe 1, go up control valve 3, go up one way valve 4, go up pump 5, go up protector 6, motor 7, down protector 8, inhalator 10, down pump 11, twin-stage cyclone 13, one way valve 15, packer 16 link to each other through oil pipe 1 with following control valve 17 successively down, and coaxial successively from top to bottom being installed in the sleeve pipe 18.Cable 2 stretches in the sleeve pipe outside sleeve pipe 18, and is connected with motor 7.One end of outer bypass pipe 9 is connected with oil pipe between last pump 5 and the last protector 6, and the other end of outer bypass pipe 9 is connected with twin-stage cyclone 13.
Above-mentioned oil-separated form water is adopted the twin-stage cyclone in the dispensing device, and its structure is as shown in Figure 2, is made up of one-level cyclone 22, second cyclone 26, internal bypass pipe 21 and dividing plate 25.One-level cyclone 22 and second cyclone 26 coaxial being installed in series in the housing of twin-stage cyclone 13, dividing plate 25 places between one-level cyclone 22 and the second cyclone 26.The outlet 24 of one-level cyclone is passed dividing plate 25 and is connected with second cyclone 26.One end of internal bypass pipe 21 is connected with outer bypass pipe 9 as shown in fig. 1, and the other end of internal bypass pipe 21 is connected with the overflow outlet of one-level cyclone and the overflow outlet 20 of second cyclone respectively.
The offshore oil production that the utility model proposes is adopted dispensing device with big flow downhole oil-separated form water; According to process pipe string figure, with oil pipe, cable, high-voltage cable joint, go up control valve, go up one way valve, go up pump, go up protector, motor, down protector, intake, down pump, first order cyclone separator, second level cyclone separator, down one way valve, packer, control valve, outer bypass pipe and each segmentation oil pipe etc. are in turn connected into process pipe string from top to bottom down.Wherein, power section is formed by connecting through flange (or screw thread) motor, protector.The plenum branch comprises pump, following pump, and they can be electric submersible centrifugal pumps, are connected to power section through flange.Oil-separated form water partly comprises one-level cyclone, second cyclone, packer, outer bypass pipe etc., connects successively from top to bottom, is installed in supercharging part below, and partly is connected with supercharging with flange.Control section is made up of upper and lower control valve, the upper and lower outlet back pressure of adjusting device.Package unit is installed in the sleeve pipe, and motor electric power provides through high-voltage cable joint and cable.
Below in conjunction with accompanying drawing, introduce the operating principle that offshore oil production that the utility model proposes is adopted dispensing device with big flow downhole oil-separated form water:
As shown in Figure 1, the oil-water mixed liquid of producing horizon extraction flows by the direction of arrow shown in Figure 1, through the intake of inhalator 10; Get into pump 11 down, mixed liquor gets into the oil pipe cavity of twin-stage cyclone 13 outsides that are used for oil-water separator after pump supercharging down; Get into the eddy flow chamber of cyclone again, mixed liquor is through the effect of twin-stage cyclone, and a part of mixed liquor that water content is lower flows according to the diagram direction of arrow; Get into outer bypass pipe 9 through internal bypass pipe 21 backs, pump 5 enters the mouth in the arrival, on the process after the pump supercharging; Flow through and go up one way valve 4, go up control valve 3, given rise to ground at last; The higher a part of mixed liquor of water content flows according to the diagram direction of arrow, and the one way valve 15 of flowing through down, packer 16, following control valve 17 are injected into the water filling layer at last.
As shown in Figure 2, oil-water mixture shown in arrow, through one-level cyclone inlet 12, gets into one-level cyclone external oil pipe cavity after pump pressurizes down.Mixed liquor separates according to getting into one-level cyclone 22 shown in the arrow; Separate the lower output liquid of back water content according to shown in the arrow; Get into internal bypass pipe 21 through cyclone bleed off pipe outlet 20; The higher output liquid of water content gets into one-level cyclones outlet 24 according to shown in the arrow through cyclone underflow pipe outlet 23; According to the arrow direction indication; The mixed liquor higher from the isolated water content of primary cyclone flow into second cyclone external oil pipe cavity from one-level cyclone outlet 24; Mixed liquor separates according to getting into second cyclone 26 shown in the arrow, separates the lower output liquid of back water content according to shown in the arrow, gets into internal bypass pipe 21 through cyclone bleed off pipe outlet 20; The higher output liquid of water content is according to shown in the arrow; Export 23 entering second level cyclone outlets 14 through the cyclone underflow pipe, flow out the rotational flow separation part at last, and flow to the water filling layer.
The energy of the supercharging part among Fig. 1 is provided by power section motor 7, and it drives double pump work.Hermetic unit is by upper cover plate 19, the dividing plate 25 shown in last protector 6 shown in Figure 1, following protector 8 and packer 16 and Fig. 2, and lower cover 27 is formed.
Claims (2)
1. an offshore oil production is adopted dispensing device with big flow downhole oil-separated form water; It is characterized in that this separation adopts that dispensing device comprises oil pipe, cable, goes up control valve, goes up one way valve, goes up pump, goes up protector, motor, protector, outer bypass pipe, inhalator, pump, twin-stage cyclone, one way valve, packer and following control valve down down down; Describedly go up control valve, go up one way valve, go up pump, go up protector, motor, down protector, outer bypass pipe, inhalator, down pump, twin-stage cyclone, one way valve, packer link to each other through oil pipe with following control valve successively down, and coaxial successively from top to bottom being installed in the sleeve pipe; Described cable stretches into sleeve pipe outside sleeve pipe, and is connected with motor, and an end of described outer bypass pipe is connected with oil pipe between last pump and the last protector, and the other end of outer bypass pipe is connected with the twin-stage cyclone.
2. oil-separated form water as claimed in claim 1 is adopted dispensing device; It is characterized in that wherein said twin-stage cyclone is made up of one-level cyclone, second cyclone, internal bypass pipe and dividing plate; Described one-level cyclone and second cyclone are coaxial to be installed in series in the housing of second cyclone, and dividing plate places between one-level cyclone and the second cyclone; The outlet of described one-level cyclone is passed dividing plate and is connected with second cyclone; One end of described internal bypass pipe is connected with described outer bypass pipe, and the other end of internal bypass pipe is connected with the overflow outlet of one-level cyclone and the overflow outlet of second cyclone respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205151230U CN202451120U (en) | 2011-12-12 | 2011-12-12 | High-flow underground oil-water separation and production-injection device for offshore oil production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205151230U CN202451120U (en) | 2011-12-12 | 2011-12-12 | High-flow underground oil-water separation and production-injection device for offshore oil production |
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| CN202451120U true CN202451120U (en) | 2012-09-26 |
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| CN2011205151230U Expired - Fee Related CN202451120U (en) | 2011-12-12 | 2011-12-12 | High-flow underground oil-water separation and production-injection device for offshore oil production |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055549A (en) * | 2013-01-23 | 2013-04-24 | 中国石油大学(华东) | Bottom-drawing-in-type underground multistage oil-water separating device |
| 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 |
| CN103835693A (en) * | 2014-03-27 | 2014-06-04 | 中国石油大学(华东) | Instability prevention fine separation series type hydraulic cyclone oil-water separator |
| CN103883305A (en) * | 2014-01-20 | 2014-06-25 | 中国石油大学(华东) | Deepwater seabed oil and water separation and reinjection device |
| CN104389578A (en) * | 2014-12-05 | 2015-03-04 | 北京化工大学 | Offshore large-displacement downhole oil-water separation device with chemical agent injection function |
| CN108979614A (en) * | 2017-06-05 | 2018-12-11 | 中国石油天然气股份有限公司 | Ground oil-water separation injection-production system in same well |
| CN109944580A (en) * | 2019-05-14 | 2019-06-28 | 西南石油大学 | A kind of machine is taken out and infuses One-piece pump downhole oil-water separation system with adopting |
| CN110886595A (en) * | 2018-09-07 | 2020-03-17 | 中国石油天然气股份有限公司 | Injection and production integrated device |
-
2011
- 2011-12-12 CN CN2011205151230U patent/CN202451120U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103055549A (en) * | 2013-01-23 | 2013-04-24 | 中国石油大学(华东) | Bottom-drawing-in-type underground multistage oil-water separating device |
| CN103055549B (en) * | 2013-01-23 | 2016-08-17 | 中国石油大学(华东) | Introduction-type down-hole multilevel oily-water seperating equipment bottom one |
| CN103883305A (en) * | 2014-01-20 | 2014-06-25 | 中国石油大学(华东) | Deepwater seabed oil and water separation and reinjection device |
| 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 |
| CN103835693A (en) * | 2014-03-27 | 2014-06-04 | 中国石油大学(华东) | Instability prevention fine separation series type hydraulic cyclone oil-water separator |
| 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 |
| CN104389578A (en) * | 2014-12-05 | 2015-03-04 | 北京化工大学 | Offshore large-displacement downhole oil-water separation device with chemical agent injection function |
| CN108979614A (en) * | 2017-06-05 | 2018-12-11 | 中国石油天然气股份有限公司 | Ground oil-water separation injection-production system in same well |
| CN110886595A (en) * | 2018-09-07 | 2020-03-17 | 中国石油天然气股份有限公司 | Injection and production integrated device |
| CN110886595B (en) * | 2018-09-07 | 2022-03-29 | 中国石油天然气股份有限公司 | Injection and production integrated device |
| CN109944580A (en) * | 2019-05-14 | 2019-06-28 | 西南石油大学 | A kind of machine is taken out and infuses One-piece pump downhole oil-water separation system with adopting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120926 Termination date: 20201212 |