CN103883880A - Polymer-flooding crude oil low-temperature conveying fluidization device - Google Patents
Polymer-flooding crude oil low-temperature conveying fluidization device Download PDFInfo
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- CN103883880A CN103883880A CN201410147484.2A CN201410147484A CN103883880A CN 103883880 A CN103883880 A CN 103883880A CN 201410147484 A CN201410147484 A CN 201410147484A CN 103883880 A CN103883880 A CN 103883880A
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- crude oil
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- 239000010779 crude oil Substances 0.000 title claims abstract description 31
- 238000005243 fluidization Methods 0.000 title claims abstract description 18
- 239000003921 oil Substances 0.000 claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 4
- 239000003129 oil well Substances 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 10
- 239000012530 fluid Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000001846 repelling effect Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Lubricants (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a polymer-flooding crude oil low-temperature conveying fluidization device. The polymer-flooding crude oil low-temperature conveying fluidization device comprises a stator housing and a disturbed flow rotor, wherein the disturbed flow rotor is composed of a plurality of sets of blades, holes are formed in each blade, the portions, arranged at the two ends of the disturbed flow rotor, of a center shaft are connected with the stator housing in a rotary mode through sliding bearings, and an oil inlet pipe and an outlet pipe are arranged on the stator housing. According to the polymer-flooding crude oil low-temperature conveying fluidization device, crude oil, with the temperature lower than the solidifying point, of oil well output liquid is sheared to be granular, low-temperature conveying can be achieved, when the temperature of wellhead output liquid is higher than the solidifying point, only normal gathering and conveying are needed, and rise of the wellhead return pressure can be effectively controlled under the two working conditions.
Description
One, technical field:
What the present invention relates to is to the poly-equipment that becomes particulate flow after cold defeated well production fluid is processed that drives, and what be specifically related to is the poly-cold defeated fluidization equipment of repelling crude oil.
Two, background technique:
The most of crude oil of China has the high content of wax, high condensation point and high viscosity, i.e. the feature of " three height ".Compare than Oilfields, oil-gas gathering and transportation process energy consumption is high, it is high to discharge, efficiency is low, and oil-gas gathering and transportation cost accounts for the more than 30% of field produces overall cost.Due to the particularity of oil-gas reservoir and the own feature of development mode, require us can not indiscriminately imitate external advanced technologies technology, how to develop new oil-gas gathering and transferring technology flow process, be a key technology difficult problem for new Oil & Gas Fields Construction and old oil gas field secondary development.For keeping stable production of crude oil high yield, China most of oil field " underground " in the urgent need to address and " on the ground " two large problems: so-called " underground " problem is how to improve oil reservoir to enter the oil gas recovery ratio problem of exploiting the middle and later periods; " on the ground " problem is for the moisture situation about significantly increasing of production fluid, how to keep oil-gas gathering and transportation process efficient low-consume problem.At present, along with oilfield exploitation enters the middle and later periods, the oil gas of " underground " is by secondary and tertiary phase (water filling, steam injection and polymer flooding etc.), cause the moisture content of " on the ground " Produced Liquid sharply to increase, produced liquid in oil well composite water cut has exceeded 85%, and some has even reached 95%.Along with the rising of produced liquid in oil well moisture content, the oil-collecting of oil-gas gathering and transportation process, dehydration, stable and accumulating treatment process is more complicated, and collecting defeated process energy consumption also constantly increases.Research and probe is suitable for the new process new method of high moisture oil-collecting, to oilfield stable production high yield and energy-saving and cost-reducing significant.
Defeated for guaranteeing crude oil proper set, early stage oil field " on the ground " generally adopts the gathering and transportation technology of heating in crude oil mixed with hot water.In recent years, along with not heating deepening continuously of gathering-transferring technology research, poly-drive cold defeated well and cancelled traditional water-mixing flow, well head relies on the regular pitching control back pressure rate of climb, can only rely on hot high pressure carwash to rinse main line and reduce wellhead back pressure, especially polymer displacement oil well is shown in that poly-concentration and moisture lower degradation factor affect, and the back pressure rate of climb is fast, affects production smooth running.Oil Well Back Pressure height can cause oil well ground system energy consumption to increase, and down-hole string alternate load increases and shortens tubing string working life, and oil well pump efficiency declines affects output; Some oil wells back pressure speed raises fast, finds even can cause not in time oil return pipeline to stop up oil well and stops production, and affects oil-well time-rate; Only reliable cycle pitching and the regularly hot high pressure carwash flushing main line of measure of controlling at present back pressure, workload is large.Therefore, carry out cold defeated well and change the defeated medium fluidised form Study on Technical Measures of collection, reduce the back pressure rate of climb by changing Produced Liquid fluidised form, and according to research physics or chemical method and related measure, change the flowing state of production fluid Crude Oil, it is suspended in aqueous vapor, reduce as far as possible or avoid and the contacting of tube wall, reduce the back pressure rising that crude oil alluvial tube wall causes, thereby reduce high pressure thermal cleaning car workload and pitching workload, guarantee the cold defeated oil-well time-rate of single tube.
Three, summary of the invention:
The object of this invention is to provide the poly-cold defeated fluidization equipment of repelling crude oil, it is for solving the poly-too high problem of cold defeated well wellhead back pressure of driving at present.
The technical solution adopted for the present invention to solve the technical problems is: the cold defeated fluidization equipment of this poly-repelling crude oil is made up of stator casing and flow-disturbing rotor, flow-disturbing rotor forms by organizing blade more, on every blade, be arranged with hole, central shaft and the stator casing of flow-disturbing two ends of rotor are rotationally connected by sliding bearing, have oil inlet pipe and oil outlet tube on stator casing.
Angle in such scheme between flow-disturbing rotor two adjacent groups blade is 60 °.
In such scheme, stator casing is made up of a circular cylindrical shell two ends gland of each fixed installation, bolt is through after the gland at two ends, cylindrical shell is fastened between the gland at two ends, sealing gasket is installed in the end that cylindrical shell is connected with gland, there is a center hole at the center of gland, for being connected with the central shaft of flow-disturbing rotor; Gland is also provided with capping outward.
Beneficial effect:
1. the present invention shears the crude oil below solidifying point in the middle of produced liquid in oil well, make it become granular, can realize low temperature and carry, and when well head production fluid is during higher than condensation point, only need carry out proper set defeated, under two kinds of operating modes, all can effectively control the rising of wellhead back pressure.
2.the present invention considers in use for some time, as collect defeated medium for a long time below condensation point, may have the blade surface of crude oil alluvial in incoming flow one side, but due to the Action of Gravity Field of alluvial crude oil, can make rotor rotate, speckle with the rotor blade that solidifies crude oil and can be automatically brought to below, simultaneously due to blade upset, the blade surface of crude oil of causing depositing goes to out stream one side, can directly be rinsed out by incoming flow, and be sheared when a slice rotor blade under process, realize on-line rinsing, simultaneously, also can be by the spanner side of rotatable stator shell side manually and rotor consubstantiality, carry out rotor, easy-to-operat personnel periodic cleaning and maintenance.
3. the present invention is simple in structure, easy to connect, and cost is low, effective.
Four, accompanying drawing explanation:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of stator casing in the present invention;
Fig. 3 is the plan view of flow-disturbing assembly in the present invention;
Fig. 4 is the plan view of flow-disturbing assembly in the present invention.
1. gland 2. cylindrical shell 3. flow-disturbing rotor 4. sealing gasket 5. central shaft 6. sliding bearing 7. oil inlet pipe 8. oil outlet tube 9. bolt 10. blade 11. holes.
Five, embodiment:
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Figure 1, the cold defeated fluidization equipment of this poly-repelling crude oil is made up of stator casing and flow-disturbing rotor 3, stator casing is a housing, flow-disturbing rotor 3 is impellers that many group blades combine, and consults Fig. 3 and Fig. 4, is arranged with the hole 11 of certain pore size and quantity on blade 10, angle between two adjacent groups blade 10 is 60 °, like this, can guarantee to leave enough circulation areas when shearing, can effectively reduce device local resistance.Central shaft 5 and the stator casing at flow-disturbing rotor 3 two ends are rotationally connected by sliding bearing 6, flow-disturbing rotor 3 can rotate freely in stator casing, on stator casing, there are oil inlet pipe 7 and oil outlet tube 8, crude oil enters after the poly-cold defeated fluidization equipment of repelling crude oil from oil inlet pipe 8, be full of immediately in stator casing, stator casing is used for collecting the defeated medium of collection, and anti-current is disturbed part for shearing medium, realizes fluidization processing.
Shown in Fig. 2, in present embodiment, stator casing is made up of a circular cylindrical shell 2 two ends gland 1 of each fixed installation, bolt 9 is through after two ends gland 1, cylindrical shell 2 is fastened between the gland 1 at two ends, cylindrical shell 9 by bolt 9 round, sealing gasket 4 is installed in the end that cylindrical shell 2 is connected with gland 1, and there is a center hole at the center of gland 1, for being connected with the central shaft 5 of flow-disturbing assembly; Gland 1 is outer is also provided with capping, and stator casing side and rotor consubstantiality are provided with spanner side.
The fluidization processing procedure of crude oil realizes by flow-disturbing rotor portion of the present invention, and this structure can rely on the aperture on fluidization equipment flow-disturbing rotor blade to realize a fluid stream cutting.
When fluid is by time of the present invention, first flow to outlet end by the hole 11 on first rotor blade 10, form crude oil a fluid stream, then by second rotor blade 10, a fluid stream is produced to cutting effect.Fluid viscosity is larger, more easily stop up the hole 11 of flow-disturbing rotor, the pressure reduction that flow-disturbing rotor is imported and exported is larger, the moment that promotion flow-disturbing rotor 3 rotates is also larger, and after flow-disturbing rotor 3 Rotate 180s °, the import and export of flow-disturbing rotor hole 11 have just in time also been rotated 180 °, have realized instant backwash, and the elaioleucite that stops up hole 11 is washed away.
When poly-while driving cold defeated well production fluid temperature lower (in condensation point below), the present invention drives the crude oil below solidifying point in the middle of cold defeated produced liquid in oil well and shears poly-, makes it become granular, suspends in water, and can realize low temperature conveying; In the time that production fluid temperature is higher, medium is all defeated with liquid form proper set, carries to adapt to the high-moisture percentage hydraulic suspension that do not heat of poly-repelling crude oil under different temperatures.The present invention can be under without water mixing, without additionaling power condition, realizes poly-cold defeated well production fluid fluidization collection defeated, effectively reduces back pressure, reduces collection delivery of energy consumption, realizes safe transport.
The central shaft 5 of flow-disturbing assembly of the present invention adopts sliding bearing 6 with stator casing, sliding bearing simplicity of design, and application is convenient, adopts and allows the sliding bearing of soaked with liquid to replace rolling bearing, has reduced greatly the resistance that rotor rotates, and power loss is little; Seal form of the present invention adopts static seal.
Claims (3)
1. the cold defeated fluidization equipment of poly-repelling crude oil, it is characterized in that: the cold defeated fluidization equipment of this poly-repelling crude oil is made up of stator casing and flow-disturbing rotor (3), flow-disturbing rotor (3) forms by organizing blade more, on every blade (10), be arranged with hole (11), the central shaft (5) at flow-disturbing rotor (3) two ends is rotationally connected by sliding bearing (6) with stator casing, has oil inlet pipe (7) and oil outlet tube (8) on stator casing.
2. the cold defeated fluidization equipment of poly-repelling crude oil according to claim 1, is characterized in that: the angle between described flow-disturbing rotor two adjacent groups blade (10) is 60 °.
3. the cold defeated fluidization equipment of poly-repelling crude oil according to claim 2, it is characterized in that: described stator casing respectively fixedly mounts a gland (1) by a circular cylindrical shell (2) two ends and forms, bolt (9) is through after the gland (1) at two ends, cylindrical shell (2) is fastened between the gland (1) at two ends, sealing gasket (4) is installed in the end that cylindrical shell (2) is connected with gland (1), there is a center hole at the center of gland (1), for being connected with the central shaft (5) of flow-disturbing rotor; Capping is also installed outside gland (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147484.2A CN103883880B (en) | 2014-04-14 | 2014-04-14 | The cold defeated fluidization equipment of poly-repelling crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410147484.2A CN103883880B (en) | 2014-04-14 | 2014-04-14 | The cold defeated fluidization equipment of poly-repelling crude oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103883880A true CN103883880A (en) | 2014-06-25 |
| CN103883880B CN103883880B (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410147484.2A Expired - Fee Related CN103883880B (en) | 2014-04-14 | 2014-04-14 | The cold defeated fluidization equipment of poly-repelling crude oil |
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| Country | Link |
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| CN (1) | CN103883880B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341878A (en) * | 2022-07-08 | 2022-11-15 | 温州大学 | Underground high-wax-content produced liquid cold conveying device and method |
| CN115341878B (en) * | 2022-07-08 | 2024-05-28 | 温州大学 | Underground high-wax-content liquid production and transportation device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050275300A1 (en) * | 2004-06-15 | 2005-12-15 | Aly El-Shafei | Methods of controlling the instability in fluid film bearings |
| CN101190403A (en) * | 2007-04-27 | 2008-06-04 | 方民 | High-efficiency fluid mixed stirring leaf blade unit |
| CN102242867A (en) * | 2011-07-07 | 2011-11-16 | 东北石油大学 | Crude oil forming device |
-
2014
- 2014-04-14 CN CN201410147484.2A patent/CN103883880B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050275300A1 (en) * | 2004-06-15 | 2005-12-15 | Aly El-Shafei | Methods of controlling the instability in fluid film bearings |
| CN101190403A (en) * | 2007-04-27 | 2008-06-04 | 方民 | High-efficiency fluid mixed stirring leaf blade unit |
| CN102242867A (en) * | 2011-07-07 | 2011-11-16 | 东北石油大学 | Crude oil forming device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115341878A (en) * | 2022-07-08 | 2022-11-15 | 温州大学 | Underground high-wax-content produced liquid cold conveying device and method |
| CN115341878B (en) * | 2022-07-08 | 2024-05-28 | 温州大学 | Underground high-wax-content liquid production and transportation device and method |
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| Publication number | Publication date |
|---|---|
| CN103883880B (en) | 2016-11-09 |
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| CB03 | Change of inventor or designer information |
Inventor after: Liu Xiaoyan Inventor after: Liu Yang Inventor after: Tan Yingjie Inventor after: ZhuGe Xianglong Inventor after: Li Xiaoqing Inventor after: Mu Fei Inventor after: Li Youxing Inventor before: Liu Xiaoyan Inventor before: Tan Yingjie Inventor before: ZHUGE XIANGLONG Inventor before: Li Xiaoqing Inventor before: Mu Fei Inventor before: Li Youxing |
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Granted publication date: 20161109 |