CN101638587B - Crude oil dehydration method organically combining electric field and swirling flow field - Google Patents
Crude oil dehydration method organically combining electric field and swirling flow field Download PDFInfo
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- CN101638587B CN101638587B CN 200810138697 CN200810138697A CN101638587B CN 101638587 B CN101638587 B CN 101638587B CN 200810138697 CN200810138697 CN 200810138697 CN 200810138697 A CN200810138697 A CN 200810138697A CN 101638587 B CN101638587 B CN 101638587B
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Abstract
The invention relates to a crude oil dehydration method organically combining an electric field and a swirling flow field, which is achieved by a crude oil dehydration process consisting of a swirler, a high-frequency pulse dehydration power supply device or other power supply devices, a dehydration electrode and a sewage settling tank, and is characterized by comprising the following steps: enlarging a vortex section, a concentric drawing-down section and a parallel end section of a swirling flow pipe in the same proportion, and setting the swirler consisting of a plurality of swirling flow pipes as a swirler with a single swirling flow pipe; extending an oil outlet pipe of the single swirling flow pipe, vertically inserting the oil outlet pipe into the vortex section as a high-frequencypulse dehydration electrode, or inserting the dehydration electrode into the middle-lower part of the vortex section along the center of the oil output pipe, wherein the output end of the high-frequency pulse dehydration power supply device is connected with the oil outlet pipe or the dehydration electrode through a conducting wire, a crude oil feed pipeline is connected with the inlet of the swirler, and the oil outlet pipe is connected with an oil conveying pipe or a good oil tank; and connecting the parallel end section with the sewage settling tank to form the crude oil dehydration process organically combining a high-frequency pulse electric field and the swirling flow field.
Description
One, technical field
The present invention relates to a kind of mining site milk sap crude oil dehydration method, the crude oil dehydration method of a kind of electric field and eddy flow field combination specifically.
Two, background technology
It is most of moisture up to more than 80% that China most of oil district has entered middle and high moisture mining phase, particularly east oilfields, have in addition reach more than 90%.Be oil increasing precipitation, researched and developed various oil recovery new technologies, as acid fracturing, water plugging and profile controlling, tertiary oil recovery, microbial flooding wet goods.Tertiary oil recovery technology has become one of main means of producing on the maturing field stable yields, has increased substantially oil recovery factor.Grand celebration, Shengli Oil Field have successively carried out complex oil displacing test and polymer flooding pilot test, have obtained tangible oil increasing effect.
Facts have proved that the breaking emulsion and dewatering difficulty is learned in " three adopt " extraction liquefaction, this milk sap enters conventional electrical dehydrator, very easily causes inter-electrode short-circuit, can not reach the required strength of electric field of dehydration, makes water trap can't keep production, has had a strong impact on the quality of outer output oil.For this reason, the scientific research personnel works out a kind of high-frequency impulse electric field dehydration technique.
The pulsed electrical breakdown of emulsion not only can solve the moisture problem of former innage, and reduces usage quantity and the energy consumption of emulsion splitter.Pulsed electrical field is by setting pulse frequency and dutycycle (pulse output time with recurrence interval ratio), short circuit phenomenon between can generating electrodes, the phenomenon that also be difficult for to take place electric field the liquid pearl to be punctured form small particle size liquid pearl more and disperse, under the prerequisite of keeping equal breaking emulsion and dewatering efficient, effect, save electric energy than traditional electric demulsification.But dewatering process flow and former interchange, direct current, the two electric field dewatering process flows of alternating current-direct current are the same, the flow process more complicated, and floor space is big, and investment is big, and management is inconvenient, is restricting applying of high-frequency impulse electric field dehydration technique.
Cyclone separation process is once to introduce technology, and just is used in return water at present and handles, and crude oil, suspended substance and the particulate material of deviating from the sewage played significant effect.Because swirler is to adopt many very thin cyclone pipe unitized constructions, every cyclone pipe influent stream amount is inhomogeneous, meticulous in addition, and it is more to contain calcium ions and magnesium ions in the sewage, H
2The fouling latch up phenomenon often takes place in the S too high levels, and it is shorter to make it running period, and promotion effect is not good, but it has the advantage that volume is little, in light weight, floor space is little and separation performance is good really.
Three, summary of the invention
The purpose of this invention is to provide the crude oil dehydration method that a kind of electric field combines with eddy flow field, overcome the defective that above-mentioned two kinds of dewaterings exist.
Technical scheme of the present invention realizes in the following manner:
The crude oil dehydration process that the crude oil dehydration method that electric field of the present invention and eddy flow field organically combine is made up of swirler, high-frequency impulse dehydration electric supply installation or other electric supply installation, dehydration electrode and sewage slurry tank is realized, it is characterized in that cyclone pipe swirl section, with one heart undergauge section peace end of line section is amplified in proportion, the swirler of being made up of many cyclone pipes is made as the swirler of single cyclone pipe; The oil outlet pipe of single swirler is extended, vertically insert swirl section as the dehydration electrode, in the junction of oil outlet pipe and transition pipeline and the junction of oil outlet pipe and swirl section insulation layer is set; Or the electrode that directly will dewater inserts the middle and lower part of swirl section along the oil outlet pipe center, and oil outlet pipe is provided with insulation layer with the junction of dehydration electrode; The output terminal of high-frequency impulse dehydration electric supply installation or other electric supply installation links by lead and oil outlet pipe, or links to each other with the dehydration electrode, and ground wire links to each other with the swirler housing; Crude oil comes oil pipeline to link to each other with cyclone inlets, and oil outlet pipe links to each other with transition pipeline or good oil tank, and parallel rear links to each other with the sewage slurry tank; The size of based on crude processed amount can arrange the swirler of single swirler or many parallel connections, by high-frequency impulse dehydration electric supply installation or interchange or the power supply of supplied by AC/DC electricity device.
Compared with the prior art the present invention has the following advantages:
1. simple in structure, dewatering process flow is simple, and floor space is little, less investment, convenient management;
2. electro-dewatering mechanism and swirler mechanism are organically combined, improved dehydrating effect, increased the scope of application, take off crude oil well and the bad crude oil that takes off can both take off, do not fall electric field.
3. do not deposit crude oil, can not form ageing oil, can not destroy electric field.
Four, description of drawings
Fig. 1-the solution of the present invention principle schematic
Fig. 2-application synoptic diagram of the present invention
1-electrode and the parallel rear 7-of oil outlet pipe 2-insulation layer 3-import 4-swirl section 5-concentric undergauge section 6-sewage slurry tank 8-high-frequency impulse dehydration electric supply installation among the figure
Five, embodiment
For further disclosing technical scheme of the present invention, below in conjunction with Figure of description, elaborate by embodiment.
As shown in Figure 1, the swirl section 4 of cyclone pipe, with one heart undergauge section 5 peaceful end of line sections 6 are amplified, and the swirler of being made up of many cyclone pipes is made as the swirler of single cyclone pipe; The oil outlet pipe of single swirler is extended, vertically insert swirl section as high-frequency impulse dehydration electrode 1, in the junction of oil outlet pipe and transition pipeline and the junction of oil outlet pipe and swirl section 4 insulation layer 2 is set; Or the electrode 1 that directly will dewater is provided with insulation layer 2 along oil outlet pipe center insertion swirl section 4 in the junction of oil outlet pipe and high frequency dehydration electrode; High-frequency impulse dehydration electric supply installation 8 output terminals and oil outlet pipe link, or link to each other with the dehydration electrode, and ground wire links to each other with the swirler housing; Crude oil emulsion comes oil pipeline to link to each other with cyclone inlets 3, and oil outlet pipe links to each other with good oil tank, and parallel rear 6 directly links to each other with sewage jar 7; The size of based on crude processed amount can arrange the swirler of a single swirler or many parallel connections, by the power supply of high-frequency impulse dehydration electric supply installation.
After milk sap tangentially entered cyclone pipe by the tangential involute urve import on the cylinder swirl section, because the effect of tangential high pressure, milk sap had formed eddy current.Simultaneously, under the effect of high-frequency impulse electric field, the milk sap small water droplets begins coalescent, has formed the bigger water droplet of particle diameter at short notice.Coalescent by the cylinder swirl section, milk sap enters concentric undergauge section.With one heart undergauge Duan Weiyi cone cavity utilizes its awl cross section to tighten, and makes milk sap obtain great acceleration and forms helicoidal flow.In this process because the further effect of profit density difference and high-frequency impulse, the little water droplet of the water droplet after the gathering and not gathering under action of centrifugal force to the peripolesis of swirler and further assemble; The center that oil droplet then is pressed against device has formed external phase; Swirler sewage outlet section makes the speed of milk sap of initial gross separation constantly increase for fine cone section, and water-oil emulsion is got back and further separated; It is constant that the water-oil emulsion flow velocity of parallel-segment keeps.The pressure that can obtain the bottom according to Bernoulli equation in the hydromeehanics becomes big gradually, can cause certain back pressure to top, the oil phase of center is forced into oil outlet and discharges under the effect of back pressure, water then relies on the effect of gravity and enters the sewage jar by parallel rear, has finally realized the separation of profit.
Claims (2)
1. the crude oil dehydration method that organically combines of an electric field and eddy flow field, the crude oil dehydration process realization of being formed by swirler, high-frequency impulse dehydration electric supply installation, dehydration electrode and sewage slurry tank, it is characterized in that cyclone pipe swirl section, with one heart undergauge section peace end of line section is amplified in proportion, the swirler of being made up of many cyclone pipes is made as the swirler of single cyclone pipe; The oil outlet pipe of single swirler is extended, the vertical swirl section of inserting is as the high-frequency impulse electrode that dewaters, or the electrode that directly will dewater inserts the middle and lower part of swirl section along the oil outlet pipe center, the output terminal of high-frequency impulse dehydration electric supply installation links with oil outlet pipe by lead or the electrode that dewaters links to each other, crude oil comes oil pipeline to link to each other with cyclone inlets, and oil outlet pipe links to each other with transition pipeline or good oil tank; Parallel rear links to each other with the sewage slurry tank, forms the crude oil dehydration method that high-frequency impulse electric field and eddy flow field organically combine.
2. the crude oil dehydration method of a kind of electric field according to claim 1 and eddy flow field combination it is characterized in that in the junction of oil outlet pipe and transition pipeline and oil outlet pipe and swirl section insulation layer being set, or the junction of oil outlet pipe and dehydration electrode is provided with insulation layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810138697 CN101638587B (en) | 2008-07-29 | 2008-07-29 | Crude oil dehydration method organically combining electric field and swirling flow field |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810138697 CN101638587B (en) | 2008-07-29 | 2008-07-29 | Crude oil dehydration method organically combining electric field and swirling flow field |
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| CN101638587A CN101638587A (en) | 2010-02-03 |
| CN101638587B true CN101638587B (en) | 2013-09-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104531204B (en) * | 2015-01-05 | 2016-08-17 | 徐进 | A kind of spiral-flow type electric dewatering apparatus for crude oil |
| CN104560129B (en) * | 2015-01-15 | 2016-04-20 | 徐进 | With the whirlwind-type apparatus for electrodewatering of drives impeller |
| CN110404298A (en) * | 2019-09-03 | 2019-11-05 | 镇江市长江机电设备厂有限公司 | A kind of new type water oil separating device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508830Y (en) * | 2001-12-13 | 2002-09-04 | 南方冶金学院 | Lactescence cyclone pulse high-voltage electrostatic continuous demulsifying device |
| CN1569663A (en) * | 2004-05-12 | 2005-01-26 | 胜利油田胜利工程设计咨询有限责任公司 | Integrated device for separation of oil-field production liquid and treatment of sewage |
-
2008
- 2008-07-29 CN CN 200810138697 patent/CN101638587B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2508830Y (en) * | 2001-12-13 | 2002-09-04 | 南方冶金学院 | Lactescence cyclone pulse high-voltage electrostatic continuous demulsifying device |
| CN1569663A (en) * | 2004-05-12 | 2005-01-26 | 胜利油田胜利工程设计咨询有限责任公司 | Integrated device for separation of oil-field production liquid and treatment of sewage |
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| CN101638587A (en) | 2010-02-03 |
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Effective date of registration: 20190524 Address after: 257026 No. 49 Jinan Road, Dongying District, Dongying City, Shandong Province Patentee after: SINOPEC PETROLEUM ENGINEERING DESIGN CO., LTD. Address before: 257026 No. 49 Jinan Road, Dongying City, Shandong Province Patentee before: Shengli Engineering Design Consulting Co., Ltd., Shengli Oil Field |
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