CN104069650B - A kind of water-and-oil separator and oil field oil water mixed solution separation method - Google Patents
A kind of water-and-oil separator and oil field oil water mixed solution separation method Download PDFInfo
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- CN104069650B CN104069650B CN201410332802.2A CN201410332802A CN104069650B CN 104069650 B CN104069650 B CN 104069650B CN 201410332802 A CN201410332802 A CN 201410332802A CN 104069650 B CN104069650 B CN 104069650B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
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- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Removal Of Floating Material (AREA)
Abstract
The present invention discloses a kind of water-and-oil separator, comprises upper exterior tube and lower outer pipe, and upper exterior tube is connected by least one standpipe with lower outer pipe; Upper exterior tube top connects the oil slick pipe extended vertically admittedly, and the oil outlet being connected upper exterior tube and oil slick pipe is offered on upper exterior tube top. A kind of oil field oil water mixed solution separation method, comprises the following steps: the crude oil in oil field oil water mixed solution and water are carried out initial gross separation by (1), employing " settling methods ", directly collects the sewage of sedimentation and the crude oil of floating in initial gross separation process; (2), adopt " settling methods " that the sewage of sedimentation in step (1) and the crude oil of floating are carried out secondary separation, secondary separation process is collected the comparatively pure water of comparatively pure crude oil and the sedimentation floated respectively. The useful effect of the present invention is: namely ensure that the miniaturization of water-and-oil separator, in turn ensure that the stability of dehydration quality, the efficiency of gravity settling is increased substantially, considerably reduces the construction costs of current separation facilities.
Description
Technical field
The present invention relates to oil field oil water mixed solution processing technology field, it is specifically related to a kind of water-and-oil separator and oil field oil water mixed solution separation method.
Background technology
The oil field Sweet natural gas that also output is a large amount of while producing crude oil and water, it is necessary to crude oil, gas, water three-phase fluid are separated. Dehydrating of crude oil equipment is then the embodiment of dehydration technique, and it occupies critical role in dehydrating of crude oil process. Dehydration technique, device structure whether reasonable, is directly connected to the quality of the effect of dehydration, efficiency and crude oil, and production run cost, and then affects total economic benefit that dehydrating of crude oil produces.
Oily water separation technique mainly contains three types in principle: i.e. aggregation method, settling methods or centrifugal force method, practice utilize often the principle of more than two kinds form concrete separating technology, but change ten thousand times without leaving the original aim or stand, in where method in office, all can't do without the effect of gravity settling, if improve the efficiency of gravity settling, the separation efficiency of oil field output object just can be improved.
The dewatering process of current oil field routine is " heat chemistry settling method ", namely heat, after dosing come that liquid enters big tank or three-phase oil again, gas, water separator carry out that sedimentation is degassed, dehydration.Administration measure when dewatering by this mode, convenient management. But for increasing the settling time, it is necessary to very big tank holds and floor space.
Although it is little that the dehydration equipment of centrifuging and ladder type pipe partition method has volume, the advantage that separation efficiency is high, but by " turbulent flow or the channelling " impact in actual motion, cause disintegrate-quality and stability also unsatisfactory, therefore, also fail to obtain large-area applications in the dewatering process of oil field.
Summary of the invention
Comparatively complete equipment is not also had to carry out the technological deficiency of oil field oil water mixed solution process for solving in prior art, inventive design goes out a kind of water-and-oil separator and oil field oil water mixed solution separation method, achieve the object of the crude oil in effective separation oil field oil-water mixture, water, it is to increase separation efficiency.
For achieving the above object, the technical solution used in the present invention is:
A kind of water-and-oil separator, comprises upper exterior tube and lower outer pipe, and upper exterior tube is connected by least one standpipe with lower outer pipe; Upper exterior tube top is connected with the oil slick pipe extended vertically, and the oil outlet being connected upper exterior tube and oil slick pipe is offered on upper exterior tube top. This water-and-oil separator, according to sedimentation theory, effectively achieves the separation of the crude oil in oil field oil water mixed solution, water.
Preferably, oil outlet is outlet-port/fuel-displaced thin seam. Oil outlet is used for conducting upper exterior tube and oil slick pipe, and this is in upper exterior tube top and cuts thin seam or punch along the axis direction of upper exterior tube on the top of upper exterior tube. Because cutting thin seam or punch and can preventing channelling.
Further, the axis being socketed with interior pipe and upper interior pipe in upper exterior tube is positioned at the vertical direction of the axis of upper exterior tube. In upper, water outlet has been offered in the bottom of pipe. Water outlet is that posticum/water outlet is carefully stitched. Shallow pond effect is produced by " pipe middle sleeve " mode; Reynolds number is caused to change by " eccentric placement " (in namely going up, the axis of pipe is positioned at the vertical direction of the axis of upper exterior tube) mode. Turbulent flow is easily produced soon because there is flow velocity, cause the problem that separation efficiency is lower, this tripping device is according to " Theory of Flow Pattern ", take pipe middle sleeve and upper interior pipe bias is placed, the cross-sectional area of eccentric annulus " crescent moon type " runner is utilized to diminish gradually, the feature that Reynolds number also diminishes thereupon, forms laminar flow at narrow gap place.
Further, the inwall of upper interior pipe is connected with dividing plate, and dividing plate has been offered through hole. To the problem causing settling time deficiency because volume is little, according to " shallow pool theory ", water-and-oil separator being made tubular type flow process, reduce the invalid settling time by dividing plate while reducing fluid level height, dividing plate also can reduce fluidised form and produce disorderly.
Further, the axis being socketed with lower interior pipe and lower interior pipe in lower outer pipe is positioned at the vertical lower of the axis of lower outer pipe. In lower, water-in has been offered in pipe bottom. Water-in is that prosopyle/water inlet is carefully stitched. Shallow pond effect is produced by " pipe middle sleeve " mode; Occur that Reynolds number changes by " eccentric placement " mode. Turbulent flow is easily produced soon because there is flow velocity, cause the problem that separation efficiency is lower, this tripping device is according to " Theory of Flow Pattern ", take pipe middle sleeve and lower interior pipe bias is placed, the cross-sectional area of eccentric annulus " crescent moon type " runner is utilized to diminish gradually, the feature that Reynolds number also diminishes thereupon, forms laminar flow at narrow gap place.
A kind of oil field oil water mixed solution separation method, comprises the following steps: the crude oil in oil field oil water mixed solution and water are carried out initial gross separation by (1), employing " settling methods ", directly collects the sewage of sedimentation and the crude oil of floating in initial gross separation process;(2), adopt " settling methods " that the sewage of sedimentation in step (1) and the crude oil of floating are carried out secondary separation, secondary separation process is collected the comparatively pure water of comparatively pure crude oil and the sedimentation floated respectively.
Further, initial gross separation and secondary separation process in step (1) and step (2) synchronously carry out, and the unified crude oil collecting floating in initial gross separation and secondary separation process. In fact secondary separation process described herein is the process of a lasting separating for several times, at fluid along in pipe flow forward process, by standpipe, and heavier water meeting sedimentation, and lighter oil can float.
The useful effect of the present invention is: namely this water-and-oil separator ensure that the miniaturization of water-and-oil separator, in turn ensure that the stability of dehydration quality, the efficiency of gravity settling is increased substantially, this water-and-oil separator is widely used in the oily water separation of oil field output object, water sand separation and sewage treatment process, can significantly reduce the construction costs of current separation facilities and reduce running cost; According to " shallow pool theory ", water-and-oil separator is made tubular type flow process, by reduce fluid level height and the invalid settling time can be reduced by dividing plate; According to " Theory of Flow Pattern ", take pipe middle sleeve and eccentric setting, utilize the cross-sectional area of eccentric annulus " crescent moon type " runner to diminish gradually, the feature that Reynolds number also diminishes thereupon, form laminar flow at narrow gap place; Achieve the object of the crude oil in effective separation oil field oil water, water. Take slot mode in pipe to reduce profit separately according to " flow resistance is theoretical " again to mix because of channelling. This oil field oil water separation method adopts merely the principle of gravity settling, it is not necessary to very big tank holds and floor space, economical and practical.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first embodiment of water-and-oil separator of the present invention;
Fig. 2 is the structural representation of the 2nd embodiment of water-and-oil separator of the present invention;
Fig. 3 is the side-view of Fig. 2.
In figure,
1, oil slick pipe; 2, upper exterior tube; 21, oil outlet; 3, upper interior pipe; 31, water outlet; 4, dividing plate; 41, through hole; 5, standpipe; 6, lower outer pipe; 7, lower interior pipe; 71, water-in.
Embodiment
Below in conjunction with accompanying drawing, the structure of the present invention is explained in detail explanation.
As shown in Figure 1, show the first embodiment of water-and-oil separator of the present invention, comprise upper exterior tube 2 and lower outer pipe 6, and upper exterior tube is connected by least one standpipe 5 with lower outer pipe; Upper exterior tube top is connected with the oil slick pipe 1 extended vertically, and the oil outlet 21 being connected upper exterior tube and oil slick pipe is offered on upper exterior tube top. This water-and-oil separator, according to the principle of gravity settling, effectively achieves the separation of the crude oil in oil field oil water, water.
As Figure 2-3, show the 2nd embodiment of water-and-oil separator of the present invention, comprise upper exterior tube 2 and lower outer pipe 6, and upper exterior tube is connected by least one standpipe 5 with lower outer pipe; Upper exterior tube top is connected with the oil slick pipe 1 extended vertically, and the oil outlet 21 being connected upper exterior tube and oil slick pipe is offered on upper exterior tube top. This water-and-oil separator, according to the principle of gravity settling, effectively achieves the separation of the crude oil in oil field oil water, water. Oil outlet is outlet-port/fuel-displaced thin seam. Upper exterior tube cuts thin seam or punches and be possible to prevent channelling.
A kind of water-and-oil separator provided by the invention, the axis being socketed with interior pipe 3 and upper interior pipe in upper exterior tube is positioned at the vertical direction of the axis of upper exterior tube so that it is the ring type space between inner and outer pipes becomes point point " crescent moon type " runner upwards.In upper, water outlet 31 has been offered in the bottom of pipe. Water outlet is that posticum/water outlet is carefully stitched. Shallow pond effect is produced by " pipe middle sleeve " mode; Occur that Reynolds number changes by " eccentric placement " mode. Turbulent flow is easily produced soon because there is flow velocity, cause the problem that separation efficiency is lower, this tripping device is according to " Theory of Flow Pattern ", take pipe middle sleeve and upper interior pipe bias is placed, the cross-sectional area of eccentric annulus is utilized to diminish gradually, the feature that Reynolds number also diminishes thereupon, forms laminar flow at narrow gap place.
A kind of water-and-oil separator provided by the invention, the inwall of upper interior pipe is connected with dividing plate 4, and has offered through hole 41 on dividing plate. To causing settling time not enough problem because volume is little, according to " shallow pool theory ", water-and-oil separator being made tubular type flow process, reduce the invalid settling time by dividing plate while reducing fluid level height, dividing plate also can reduce fluidised form and produce disorderly.
A kind of water-and-oil separator provided by the invention, the axis being socketed with lower interior pipe 7 and lower interior pipe in lower outer pipe is positioned at the vertical lower of the axis of lower outer pipe so that it is the ring type space between inner and outer pipes becomes downward " crescent moon type " runner of point point. In lower, water-in 71 has been offered in pipe bottom. Water-in is that prosopyle/water inlet is carefully stitched. Shallow pond effect is produced by " pipe middle sleeve " mode; Reynolds number change is limited by " eccentric placement " mode. Turbulent flow is easily produced soon because there is flow velocity, cause the problem that separation efficiency is lower, this tripping device is according to " Theory of Flow Pattern ", take pipe middle sleeve and lower interior pipe bias is placed, the cross-sectional area of eccentric annulus is utilized to diminish gradually, the feature that Reynolds number also diminishes thereupon, forms laminar flow at narrow gap place.
When specifically installing and using, as long as after a straight-through valve that adds on original liquid enters the station pipeline, this water-and-oil separator flow process and former pipeline being installed in parallel, when original flow process not moved, new dewatering type can being run; The processing power of single group water-and-oil separator is determined by caliber, flow velocity and liquid property, and treatment capacity is excessive or when can't meet the quality requirement, and solves by mode that is in parallel again or series connection one group of this water-and-oil separator.
A kind of water-and-oil separator provided by the invention, principle of work is as follows: oil field oil water mixed solution enters and flow forward from upper interior pipe, the oil slick pipe of low density crude oil on upper exterior tube top, in pipe enter petroleum tank after outflow forward. After the excessive discharge of high-density water, in the water outlet �� standpipe �� lower of upper interior pipe the lower interior pipe of the water-in of pipe �� enter backward before enter water pot after outflow. Now annular space sectional area because of water inlet is less, can prevent the water-band crude oil entered in lower interior pipe.
The part crude oil taken out of because of excessive draining from the water outlet of upper interior pipe forms profit transitional zone in standpipe, and transitional zone top crude oil enters petroleum tank after the oil outlet �� oil slick pipe of upper exterior tube. Now oil outlet place annular space area because of upper exterior tube is less, can prevent from intaking in crude oil.
Oil field oil water mixed solution enters and flow forward from upper interior pipe, in flow process, oil field oil water mixed solution is through dividing plate, a large amount of oily(waste)water flows into upper exterior tube from the water outlet of upper interior pipe, now owing to density is different, lighter crude oil flows into the discharge of oil slick pipe through the oil outlet of upper exterior tube, the wet oil of flow forward vertically in upper interior pipe, heavier water enters upper exterior tube through water outlet, flows into lower outside (interior) pipe by standpipe and discharges (in lower outer pipe vertically flow forward).(due to the effect of density, gravity, upper interior pipe will based on crude oil, and lower interior pipe will based on water) (due to the effect of density, gravity, in flow process, the water in upper interior pipe crude oil, when flowing through standpipe, can sink down in lower outer pipe automatically; Crude oil in lower outer pipe water, when flowing through standpipe, the automatic floating of meeting enters oil slick pipe through the oil outlet of upper exterior tube).
A kind of oil field oil water mixed solution separation method provided by the invention, comprise the following steps: the crude oil in oil field oil water mixed solution and water are carried out initial gross separation by (1), employing " settling methods ", initial gross separation process is directly collected the sewage of sedimentation and the crude oil of floating; (2), adopt " settling methods " that the sewage of sedimentation in step (1) and the crude oil of floating are carried out secondary separation, secondary separation process is collected the comparatively pure water of comparatively pure crude oil and the sedimentation floated respectively.
Initial gross separation and secondary separation process in a kind of oil field oil water mixed solution separation method provided by the invention, step (1) and step (2) synchronously carry out, and the unified crude oil collecting floating in initial gross separation and secondary separation process. In fact secondary separation process described herein is the process of a lasting separating for several times, in fluid flow forward process, and heavier water meeting sedimentation, and lighter oil can float.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and simple modifications etc. done in flesh and blood of the present invention, all should be included within protection scope of the present invention.
Claims (1)
1. an oil field oil water mixed solution separation method, it is characterised in that, comprise the following steps:
(1), adopt " settling methods " that the crude oil in oil field oil water mixed solution and water are carried out initial gross separation, initial gross separation process is directly collected the sewage of sedimentation and the crude oil of floating;
(2), adopt " settling methods " that the sewage of sedimentation in step (1) and the crude oil of floating are carried out secondary separation, secondary separation process is collected the comparatively pure water of comparatively pure crude oil and the sedimentation floated respectively; Initial gross separation and secondary separation process in step (1) and step (2) synchronously carry out, and unified collect in initial gross separation and secondary separation process the crude oil floated; First separation uses water-and-oil separator to be separated with secondary separation, and this water-and-oil separator comprises upper exterior tube and lower outer pipe, and upper exterior tube is connected by least one standpipe with lower outer pipe; Upper exterior tube top connects the oil slick pipe extended vertically admittedly, and the oil outlet being connected upper exterior tube and oil slick pipe is offered on upper exterior tube top; The axis being socketed with interior pipe and upper interior pipe in upper exterior tube is positioned at the vertical direction of the axis of upper exterior tube; In upper, water outlet has been offered in the bottom of pipe, and water outlet is that posticum or water outlet are carefully stitched.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410332802.2A CN104069650B (en) | 2014-07-14 | 2014-07-14 | A kind of water-and-oil separator and oil field oil water mixed solution separation method |
| CN201510993976.8A CN105413238B (en) | 2014-07-14 | 2014-07-14 | A kind of oil water separator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410332802.2A CN104069650B (en) | 2014-07-14 | 2014-07-14 | A kind of water-and-oil separator and oil field oil water mixed solution separation method |
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| CN201510993976.8A Division CN105413238B (en) | 2014-07-14 | 2014-07-14 | A kind of oil water separator |
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| CN104069650B true CN104069650B (en) | 2016-06-08 |
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| CN201510993976.8A Active CN105413238B (en) | 2014-07-14 | 2014-07-14 | A kind of oil water separator |
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| CN104828990B (en) * | 2015-03-11 | 2016-09-28 | 崔斌 | A kind of pipe box tubular type four-phase separator and oil field oil water mixed liquor Isolation method |
| CN105000704B (en) * | 2015-08-05 | 2017-03-01 | 崔斌 | Pipe type oil moisture trap and separation method |
| CN108191001B (en) * | 2018-01-08 | 2019-06-14 | 中国科学院力学研究所 | A kind of oily-water seperating equipment |
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| US4311590A (en) * | 1980-09-25 | 1982-01-19 | Sheng Henry P | Phase separation apparatus |
| US8864888B2 (en) * | 2009-12-10 | 2014-10-21 | Ihi Corporation | Oil-water separation device and refining device |
| CN103752042B (en) * | 2013-01-29 | 2016-08-17 | 中国石油天然气股份有限公司 | Opposite opened wing-shaped plate and combinations thereof body oils cement separating member and Oil Water Sludge Separation method |
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- 2014-07-14 CN CN201410332802.2A patent/CN104069650B/en active Active
- 2014-07-14 CN CN201510993976.8A patent/CN105413238B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067597U (en) * | 1989-11-30 | 1990-12-19 | 李青芳 | Floating separator for mixture of oil and water |
| CN2448429Y (en) * | 2000-05-03 | 2001-09-19 | 骆金山 | Oil and water separator |
| CN101810941A (en) * | 2010-04-13 | 2010-08-25 | 中海石油(中国)有限公司深圳分公司 | Compound oil-water separation system |
| CN101973648A (en) * | 2010-07-05 | 2011-02-16 | 无锡出新环保设备有限公司 | Gravity oil and water separator |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104069650A (en) | 2014-10-01 |
| CN105413238B (en) | 2017-07-18 |
| CN105413238A (en) | 2016-03-23 |
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