CN109464827A - A kind of oily-water seperating equipment and oily-water seperating equipment pipe string - Google Patents
A kind of oily-water seperating equipment and oily-water seperating equipment pipe string Download PDFInfo
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- CN109464827A CN109464827A CN201710801445.3A CN201710801445A CN109464827A CN 109464827 A CN109464827 A CN 109464827A CN 201710801445 A CN201710801445 A CN 201710801445A CN 109464827 A CN109464827 A CN 109464827A
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- water
- oily
- seperating equipment
- water seperating
- oil
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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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
It includes: support tube that the present invention, which provides a kind of oily-water seperating equipment and oily-water seperating equipment pipe string, the oily-water seperating equipment, and the support tube is equipped with multiple first flowing holes；The outside of the support tube is arranged in water-oil separationg film；The water-oil separationg film includes the skeleton structure formed by carbon nanomaterial and filling or the high molecular material with oleophilic drainage characteristic that is coated in the skeleton structure.The oily-water seperating equipment pipe string includes: oil pipe；Multiple oily-water seperating equipments provided in an embodiment of the present invention are arranged on the oil pipe；Multiple packers are arranged on the oil pipe.The present invention does not depend on pressure difference and can be realized to the separation of the intelligence of oil water mixture, to improve recovery ratio, also solve it is conventional adjust stream water-control sieve tube nozzle-type, structural adjustment difficulty is big after channel-type water control valve enters well, the difficult problem of later period volume increase.
Description
Technical field
The present invention relates to oil gas field Well Completion Engineering of Oil Reservoirs technical field more particularly to a kind of oily-water seperating equipments and water-oil separating to fill
Set pipe string.
Background technique
Horizontal well technology is gradually widely applied in recent years, but horizontal well production fast, bottom water of successively decreasing rises that fast, water detection water blockoff is tired
The problems such as difficult, also becomes the key problem in technology for influencing horizontal well long term stable production.How the various pieces of horizontal segment are farthest guaranteed
It can balance the production, realize that control water has become key technical problem in horizontal well development.For this problem, occur both at home and abroad more
Kind horizontal well control water completion technique, be such as segmented the complete well of variable density screen casing control water, the complete well of center control water, the complete well of ICD water-control sieve tube,
Adjust stream water-control sieve tube completion technique etc..
Wherein, it adjusts stream water-control sieve tube completion technique that can effectively extend horizontal well water-free oil production period, reaches raising development effectiveness
Purpose, therefore be widely used.It adjusts stream water-control sieve tube completion technique to can be shortened completion period, reduces reservoir pollution, benefit
In reservoir protection；Well cost has been reduced, later period water-blocking operation cost is avoided；It adjusts the complete well of flow control water to reduce moisture content, improves bottom water
Flooding Efficiency, balanced production profile, finally improves recovery ratio.
But adjust and had the following problems in stream water-control sieve tube application process: adjust need to set water nozzle before stream water-control sieve tube tripping in it is big
Small, non-adjustable after tripping in, later period extract difficulty is big；Production causes formation collapse to oil well for a long time, so that adjusting stream water-control sieve tube pipe
Outer blocking increases, and reduces and adjusts stream water-control sieve tube to the ability of regulation and control of water；Additional pressure differential is too small in the case of low yield liquid measure, influences
Control water effect.Formation collapse ethmoid canal,posterior external resistance increase simultaneously increase oil and water flow resistance, reduce oil with water from
Stratum flows to the multiple of the flow resistance inside screen casing through nozzle, and water nozzle is made to die down the control action of water.
Therefore, it is big how to solve water-control sieve tube later period extract difficulty, water is controlled in the small influence of Additional pressure differential in the case of low yield liquid measure
Effect, and due to reducing grease when grease flow resistance increases from stratum through water-control sieve tube nozzle to screen casing internal flow resistance
The problems such as nozzle caused by multiple dies down to water management effect is still urgent problem to be solved in horizontal well development.
Summary of the invention
The features and advantages of the present invention partly state in the following description, or can from the description it is clear that or
Person can pass through practice present invention study.
To overcome problem of the prior art, the present invention provides a kind of oily-water seperating equipment characterized by comprising
Support tube, the support tube are equipped with multiple first flowing holes；
The outside of the support tube is arranged in water-oil separationg film；The water-oil separationg film includes being formed by carbon nanomaterial
Skeleton structure and filling or the high molecular material with oleophilic drainage characteristic being coated in the skeleton structure.
Optionally, the carbon nanomaterial includes at least one of carbon nanotube, carbon fiber, graphene；The high score
Sub- material includes at least one of Kynoar, polypropylene, polystyrene and polyether sulfone.
Optionally, the thickness of the end of the support tube is greater than the thickness of the intermediate region of the support tube.
It optionally, further include inner protective layer, between the support tube and the water-oil separationg film.
It optionally, further include filter sand layer, positioned at the outside of the water-oil separationg film.
It optionally, further include external protection, between the water-oil separationg film and the filter sand layer.
Optionally, further include base tube, be connected positioned at the inside of the support tube, and with the support tube by screw thread；Institute
Base tube is stated equipped with the second flowing hole.
Optionally, second flowing hole and first flowing hole deviate predetermined angle.
According to another aspect of the present invention, a kind of oily-water seperating equipment pipe string is provided, comprising:
Oil pipe；
The oily-water seperating equipment that any embodiment of the present invention provides is arranged on the oil pipe；
Multiple packers are arranged on the oil pipe.
Optionally, there are 2 to 5 oily-water seperating equipments between two adjacent packers.
The present invention provides a kind of oily-water seperating equipment and oily-water seperating equipment pipe strings, realize using water-oil separationg film to well
The separation of lower oil water mixture, water-oil separationg film have oleophilic drainage characteristic, and so that oil is entered base tube by separator will
Water resistance is interposed between annular space；It is big to solve water-control sieve tube later period extract difficulty, water effect is controlled in the small influence of Additional pressure differential in the case of low yield liquid measure
The problems such as, and hindered from stratum through water-control sieve tube nozzle to screen casing internal flow due to reducing grease when grease flow resistance increases
The problems such as nozzle caused by power multiple dies down to water management effect.
By reading specification, the feature of these technical solutions and interior is will be best understood in those of ordinary skill in the art
Hold.
Detailed description of the invention
It is specifically described the present invention below with reference to attached drawing and in conjunction with example, advantages of the present invention and implementation will
It is more obvious, wherein content only for the purpose of explanation of the present invention shown in attached drawing, without constitute to it is of the invention in all senses
On limitation, in the accompanying drawings:
Fig. 1 is the structural schematic diagram of the oily-water seperating equipment of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of the cross section of oily-water seperating equipment shown in FIG. 1.
Fig. 3 is the flow schematic diagram of the fluid of the oily-water seperating equipment of the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of the support tube of the embodiment of the present invention.
Fig. 5 is the structural schematic diagram of the oily-water seperating equipment pipe string of the embodiment of the present invention.
Specific embodiment
As shown in Figure 1 to Figure 3, the present invention provides a kind of oily-water seperating equipment, including support tube 12 and setting described
The outside water-oil separationg film 14 of support tube 12.Wherein, support tube 12 is equipped with multiple first flowing holes 21；Water-oil separationg film 14 is wrapped
Including the skeleton structure formed by carbon nanomaterial and filling or being coated in the skeleton structure has oleophilic drainage characteristic
High molecular material.
Water-oil separationg film 14 in the present embodiment is based on carbon nanotube, carbon fiber, graphene and constitutes back bone network, and by height
Molecular material filling and cladding.High molecular material intensity can be enhanced as skeleton structure in carbon nanomaterial, the carbon nanomaterial
Including at least one of carbon nanotube, carbon fiber, graphene.Water-oil separationg film 14 utilizes carbon nanomaterial intensity and carbon nanometer
The oleophilic drainage performance of pipe, carbon fiber, while high molecular material is utilized and has constructed super wellability oleophilic drainage seperation film, it realizes
The embrane method emulsion highly effective separation driven under extremely low pressure, can be in the high-throughput isolation lotion under driving under no impressed pressure；It should
High molecular material includes at least one of Kynoar, polypropylene, polystyrene and polyether sulfone.
Preferably hydrophobic oleophilic oil perforated membrane of the invention, table is made using wet process inversion of phases technique in above-mentioned water-oil separationg film 14
Face in micro-nano structure, film have nanoscale and micron/submicron grade duct, the seperation film be applied to grease (including emulsification
Grease) separation when, can be generated with very high separative efficiency extraordinary separative efficiency (water-oil separating efficiency generally 90% with
On), porous film surface is greater than 140 ° to the static contact angle of aqueous phase system, and to the static contact angle of oil-based system less than 10 °.
In the present embodiment, water-oil separationg film 14 simulates the structure of molecule interchain Stagger-wrap in macromolecule, with carbon nanometer material
Material is elementary material, and wet chemistry method has prepared the nano thickness high strength net pore structure ultrathin membrane with network blackboard,
Film thickness is adjustable to nanometers up to a hundred at tens nanometers, and membrane aperture is adjustable in tens nanometer ranges.
In order to realize the effect of support and protection to water-oil separationg film, it can also be arranged in the two sides of water-oil separationg film 14 and protect
Sheath, more specifically, inner protective layer 13 can be arranged between support tube 12 and water-oil separationg film 14；It can also be in water-oil separating
External protection 15 is arranged far from the side of support tube 12 in film 14.
It in another embodiment of the invention, further include filter sand layer 16, positioned at the outside of water-oil separationg film 14.Filter sand layer 16
It can play the role of sand control, filtering large granular impurity, to obstructing the impurity in oil water mixture in outer layer.Above-mentioned outer guarantor
Sheath 15 is located between water-oil separationg film 14 and filter sand layer 16.
Generally, further include base tube 11, pass through screw thread phase positioned at the inside of the support tube 12, and with the support tube
Even；The base tube 11 is equipped with the second flowing hole 22.More specifically, second flowing hole 22 be arranged on support tube 12
First flowing hole 21 deviates predetermined angle.The predetermined angle can be determined according to the first flowing hole in circumferential number.This implementation
In example, the first flowing hole 21 and the second flowing hole are 4 in circumferential number, at this point, predetermined angle can be 45 °.Such as Fig. 3
Shown, fluid is after filter sand layer 16, external protection 15, water-oil separationg film 14, inner protective layer 13, only oily and and its a small amount of water
It is entered in base tube 11 by the first flowing hole 21 on support tube, then by the second flowing hole 22 on base tube, due to grease
The hydrophobic performance of seperation film, water are organized on the outside of seperation film.
As shown in figure 4, the thickness of the end 31 of support tube is greater than the intermediate region 32 of the support tube in the present embodiment
Thickness；More specifically, the outer wall of the outer wall of the end 31 of support tube and intermediate region 32 has a difference in height, and intermediate region 32
Outer wall is lower than the outer wall of end 31, and water-oil separationg film 14 is just arranged on the intermediate region 32 of support tube；Generally, in can making
Protective layer 13, water-oil separationg film 14, the total height and support tube of external protection 15 and filter sand layer 16 end 31 outer wall with
Difference in height between the outer wall of intermediate region 32 is equal or close.In addition, the internal diameter of the end of the end 31 of support tube is less than branch
Support the internal diameter of the intermediate region of cylinder；Internal screw thread can be set in the end of the end 31 of the support cylinder, for being connected with base tube 11, and
Make that there is certain interval between the intermediate region of support tube and base tube 11, forms fluid channel.
As shown in figure 5, the present invention also provides a kind of oily-water seperating equipment pipe string, including oil pipe 60 and setting are in oil pipe 60
On multiple any embodiments of the present invention oily-water seperating equipment 10 and multiple packers 40 that provide.
In the present embodiment, there are 2 to 5 oily-water seperating equipments 10, e.g. 3 oil between two adjacent packers 40
Water separation device 10.Net horizontal section can be separated into multiple segmentations by packer 40, realize balanced effective producing pressure differential section
And production profile.The production liquid on stratum 70 initially enters in the annular space 50 between oily-water seperating equipment and uncased wellbore, in the annular space 50
In the presence of axial flowing and lateral channelling, fluid enters the ring between filter sand layer and base tube by the filter sand layer of oily-water seperating equipment 10
Shape space, the annular space of different oily-water seperating equipments be it is disconnected, pass through oil into the fluid in the space of the annular 50
Water seperation film enters in base tube.
Oily-water seperating equipment and oily-water seperating equipment pipe string provided in an embodiment of the present invention, the oily-water seperating equipment utilize stone
The oleophilic drainages characteristics such as black alkene, carbon nanotube, specific high molecular material to form the oil with nanostructure by overlapping or weaving
Water seperation film, realizes the separation of oil water mixture, and oil is only made to enter base tube by water-oil separationg film, and water resistance is interposed between seperation film
Outside.The oily-water seperating equipment pipe string utilizes packer, and net horizontal section is separated into multiple segmentations, realizes balanced effectively production pressure
Poor section and production profile realize that segment equalization recovers the oil；The present invention, which does not depend on pressure difference, can be realized intelligence to oil water mixture
It is difficult also to solve structural adjustment after routine adjusts stream water-control sieve tube nozzle-type, channel-type water control valve to enter well to improve recovery ratio for separation
Degree is big, the difficult problem of later period volume increase.
Preferred embodiments of the present invention have been described above with reference to the accompanying drawings, and those skilled in the art do not depart from the scope of the present invention
And essence, there are many variations to implement the present invention.For example, it is shown as part of one embodiment or describes
Feature can be used for another embodiment to obtain another embodiment.The above is only a preferred and feasible embodiment of the present invention, not
Therefore limiting the scope of the invention, it is all with equivalence changes made by description of the invention and accompanying drawing content, it is both contained in
Within interest field of the invention.
Claims (10)
1. a kind of oily-water seperating equipment characterized by comprising
Support tube, the support tube are equipped with multiple first flowing holes；
The outside of the support tube is arranged in water-oil separationg film；The water-oil separationg film includes the bone formed by carbon nanomaterial
Frame structure and filling or the high molecular material with oleophilic drainage characteristic being coated in the skeleton structure.
2. oily-water seperating equipment according to claim 1, which is characterized in that the carbon nanomaterial includes carbon nanotube, carbon
At least one of fiber, graphene；The high molecular material includes Kynoar, polypropylene, polystyrene and polyether sulfone
At least one of.
3. oily-water seperating equipment according to claim 1, which is characterized in that the thickness of the end of the support tube is greater than described
The thickness of the intermediate region of support tube.
4. oily-water seperating equipment according to claim 1, which is characterized in that further include inner protective layer, be located at the support tube
Between the water-oil separationg film.
5. oily-water seperating equipment according to claim 1, which is characterized in that further include filter sand layer, be located at the water-oil separating
The outside of film.
6. oily-water seperating equipment according to claim 5, which is characterized in that further include external protection, be located at the grease point
From between film and the filter sand layer.
7. oily-water seperating equipment according to claim 1, which is characterized in that further include base tube, in the support tube
Side, and be connected with the support tube by screw thread；The base tube is equipped with the second flowing hole.
8. oily-water seperating equipment according to claim 7, which is characterized in that second flowing hole and first flowing hole
Deviate predetermined angle.
9. a kind of oily-water seperating equipment pipe string characterized by comprising
Oil pipe；
Multiple oily-water seperating equipments as described in claim 1 to 8 is any are arranged on the oil pipe；
Multiple packers are arranged on the oil pipe.
10. oily-water seperating equipment pipe string according to claim 9, which is characterized in that have between two adjacent packers
There are 2 to 5 oily-water seperating equipments.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801445.3A CN109464827B (en) | 2017-09-07 | 2017-09-07 | Oil-water separation device and oil-water separation device pipe string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710801445.3A CN109464827B (en) | 2017-09-07 | 2017-09-07 | Oil-water separation device and oil-water separation device pipe string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109464827A true CN109464827A (en) | 2019-03-15 |
| CN109464827B CN109464827B (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710801445.3A Active CN109464827B (en) | 2017-09-07 | 2017-09-07 | Oil-water separation device and oil-water separation device pipe string |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318179A (en) * | 2020-03-09 | 2020-06-23 | 西南石油大学 | MnO with superstrong oil stain resistance2/carbon fiber cloth composite filtering membrane and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203683257U (en) * | 2014-01-27 | 2014-07-02 | 北京福斯菲尔环境科技有限公司 | Oil-water separation device |
| US20150258588A1 (en) * | 2014-03-17 | 2015-09-17 | Korea Institute Of Science And Technology | Nano composite structure with nano patterned structure on its surface and method of preparing the same |
| CN105080356A (en) * | 2015-08-04 | 2015-11-25 | 天津工业大学 | Hydrophobic oleophylic hollow fiber composite film and preparation method thereof |
| CN106064843A (en) * | 2016-07-06 | 2016-11-02 | 湖州深净环境科技有限公司 | A kind of resistant oily-water seperating equipment |
-
2017
- 2017-09-07 CN CN201710801445.3A patent/CN109464827B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203683257U (en) * | 2014-01-27 | 2014-07-02 | 北京福斯菲尔环境科技有限公司 | Oil-water separation device |
| US20150258588A1 (en) * | 2014-03-17 | 2015-09-17 | Korea Institute Of Science And Technology | Nano composite structure with nano patterned structure on its surface and method of preparing the same |
| CN105080356A (en) * | 2015-08-04 | 2015-11-25 | 天津工业大学 | Hydrophobic oleophylic hollow fiber composite film and preparation method thereof |
| CN106064843A (en) * | 2016-07-06 | 2016-11-02 | 湖州深净环境科技有限公司 | A kind of resistant oily-water seperating equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111318179A (en) * | 2020-03-09 | 2020-06-23 | 西南石油大学 | MnO with superstrong oil stain resistance2/carbon fiber cloth composite filtering membrane and preparation method thereof |
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| CN109464827B (en) | 2021-01-08 |
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