CN108728070A - Adhesion adjusts stifled stream particle and preparation method thereof from card - Google Patents
Adhesion adjusts stifled stream particle and preparation method thereof from card Download PDFInfo
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- CN108728070A CN108728070A CN201810550718.6A CN201810550718A CN108728070A CN 108728070 A CN108728070 A CN 108728070A CN 201810550718 A CN201810550718 A CN 201810550718A CN 108728070 A CN108728070 A CN 108728070A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/516—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls characterised by their form or by the form of their components, e.g. encapsulated material
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
- C09K8/508—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/5083—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention relates to petrol resources exploitation fields more particularly to a kind of adhesion to adjust stifled stream particle and preparation method thereof from card.Wherein, adhesion of the invention is counted in parts by weight from blocking tune stream particle, including 50-80 parts of polystyrene, 20-45 parts of density adjusters and 2-8 parts of toughness reinforcing agents.On the other hand, the preparation method of adhesion of the invention from the stifled stream particle of card tune includes：(1) polystyrene, density adjuster, toughness reinforcing agent are uniformly mixed by predetermined ratio, obtain mixture；(2) by the mixture of step (1), melt pelletization adjusts stifled stream particle to get adhesion from card at 200-260 DEG C.The advantages of adhesion of the present invention is controllable from blocking tune stream grain density, and adhesion becomes larger, has from blocking, oleophilic drainage, 3-5MPa water flooding construction pressure differences can be born after closure under the conditions of 130 DEG C.
Description
Technical field
The present invention relates to petrol resources exploitation fields more particularly to a kind of adhesion to adjust stifled stream particle and its preparation side from card
Method.
Background technology
In petrol resources exploitation field, the raising recovery ratio method of ultra-deep fracture and vug carbonate reservoir is always worldwide
Problem is easily altered along fracture belt high speed into it is difficult to effectively especially for the fracture-pore reservoir by Fracture Control when waterflooding extraction
The remaining oil of water injection unit is employed, while current tune stream granular system also is difficult to be effectively improved flood effectiveness.
After disconnected control karst oil reservoir High water cut, conventional water blockoff and waterflooding extraction are difficult to be effectively improved development effectiveness.Early period
Water blockoff certain effective method there is no to the improvement for administering such disconnected control karst oil reservoir.On the one hand conventional water shutoff agent is due to density
Difference leak-off easily in crack, it is difficult to it is effectively resident, it can not achieve the target of water blockoff oil-producing.On the other hand due to carbonate
The understanding problem of rock formation channels cannot still specify water filling and alter the position of stand in channel and the occurrence status of remaining oil, at present to such as
The development effectiveness what improves such oil reservoir not yet establishes clearly effective method.
Middle density and low-density particles tune stream pilot test have been carried out to disconnected control karst oil reservoir at present, had in dynamic certain
It is corresponding, but there is no apparent oil increasing effect.Think for disconnected control karst how to be established in water breakthrough channel effective
Strong closure realizes that flow direction-changing is the key that improving ecology development effectiveness.
In view of the High water cut problem that the disconnected control karst development late stage of ultra-deep Carbonate Reservoir faces, in order to be such oil reservoir
Exploitation provides new method and thinking, is badly in need of a kind of adhesion of suitable disconnected control karst of invention from blocking tune fluid system, realizes to disconnected
The improvement of karst High water cut is controlled, the development effectiveness of disconnected control karst oil reservoir is improved.
Invention content
In order to solve the above technical problem, the present invention provides a kind of adhesions to adjust stifled stream particle and preparation method thereof from card.
It is specific as follows：
A kind of adhesion is counted, including 50-80 parts of polystyrene, 20-45 parts of density tune in parts by weight from blocking tune stream particle
Save agent and 2-8 parts of toughness reinforcing agents.
Above-mentioned adhesion is counted in parts by weight from blocking tune stream particle, including 55-75 parts of polystyrene, 25-40 parts of density
Conditioning agent and 3-6 parts of toughness reinforcing agents.
Above-mentioned adhesion is counted in parts by weight from blocking tune stream particle, including 63 parts of polystyrene, 36 parts of density adjusters
And 4 parts of toughness reinforcing agents.
From blocking tune stream particle, the density adjuster is calcium powder, rubber powder or asphalt powder for above-mentioned adhesion.
From blocking tune stream particle, the toughness reinforcing agent is ABS or polyvinyl alcohol for above-mentioned adhesion.
Above-mentioned adhesion adjusts stifled stream particle from card, and it is 0.1-5mm that the adhesion adjusts the grain size of stifled stream particle from card.
Above-mentioned adhesion adjusts stifled stream particle from card, and it is 1.10-1.18g/cm that the adhesion adjusts stifled stream grain density from card3。
Above-mentioned adhesion adjusts stifled stream particle from card, and the adhesion adjusts stifled stream particle is adhesive at 130 DEG C from card to become larger, and seals
3-5MPa water flooding construction pressure differences can be born after stifled.
The preparation method of stifled stream particle is adjusted in above-mentioned adhesion from card, is included the following steps：
(1) polystyrene, density adjuster, toughness reinforcing agent are uniformly mixed by predetermined ratio, obtain mixture；
(2) by the mixture of step (1), melt pelletization adjusts stifled stream particle to get adhesion from card at 200-260 DEG C.
The present invention has the advantages that：
(1) adhesion of the invention is controllable from blocking tune stream grain density, under the conditions of 130 DEG C adhesion become larger, realize from blocking,
Oleophilic drainage can bear 3-5MPa water flooding construction pressure differences after closure；
(2) adhesion of the invention passes through from blocking tune stream particle for the fracture and vug carbonate reservoir by Fracture Control
Adhesion blocking blocks the big channel of water breakthrough, improves water injection pressure, starts secondary channel remaining oil.
Specific implementation mode
In order to fully understand the purpose of the present invention, feature and effect, by following specific implementation modes, the present invention is made detailed
It describes in detail bright.For the process of the present invention in addition to following the description, remaining is all made of the conventional method or device of this field.Following nouns
Term is unless otherwise stated, all have the normally understood meaning of those skilled in the art.
Fracture-pore Carbonate Reservoir In Tahe Oilfield some oil wells are by Fracture Control, and after such oil reservoir High water cut, difficulty of governance is big.
On the one hand conventional shutoff method is difficult to effectively improve development effectiveness；After another aspect waterflooding extraction, injection water electrode is easily along main fracture
Band is altered into waterflooding development effect is limited, and conventional tune stream agent can not realize effectively resident closure, improving ecology effect in fracture belt
Fruit is poor.The present invention replaces low-density and middle density granule using adhesion from blocking system, close from blocking tune fluid system using adhesion
The performance that controllable and high temperature adhesion becomes larger is spent, realization efficiently blocks water breakthrough channel, realizes control water tune stream, has a extensive future.
Specifically, according to an aspect of the present invention, the present invention provides a kind of adhesions from blocking tune stream particle, by weight
Number meter, including 50-80 parts of polystyrene, 20-35 parts of density adjusters and 2-8 parts of toughness reinforcing agents；Preferably, including 55-
75 parts of polystyrene, 25-40 parts of density adjusters and 3-6 parts of toughness reinforcing agents；Most preferably, it counts in parts by weight, including 63
Part polystyrene, 33 parts of density adjusters and 4 parts of toughness reinforcing agents.
Wherein, the density adjuster is calcium powder, rubber powder or asphalt powder, the density for adjusting particle.
Calcium powder is also known as lime stone, mountain flour, chemical formula CaCO3, it is compound common on the earth.Calcium powder is divided into heavy
Calcium powder, light calcium powder, calcium carbonate superfine powder etc., wherein calcium powder used in the present invention is heavy calcium powder, and specification is 200-400 mesh.
The calcium powder that adhesion of the present invention is mixed from blocking tune stream particle, can effectively adjust the density of particle.
Rubber powder is the abbreviation of rubber powder, is generally process by waste tire.Rubber powder used in the present invention is
Micro glue powder, grain size are 0.180~0.075mm.
Asphalt powder is a kind of high polymer that the chemical treatments such as the sulfonated, emulsification of bitumen obtain.Appearance is sepia
Crispy chip or mobility powder.Since pitch contains sulfonic group, hydration is very strong, can when being adsorbed on shale interface
The aquation dispersion of shale particle is prevented to play the role of anti-collapse.Meanwhile part not soluble in water can fill pore throat again and crack is played
Plugging action, and it can be covered in shale interface, improve quality of the adhesion from blocking tune stream particle.
Wherein, the toughness reinforcing agent is ABS or polyvinyl alcohol, the toughness for enhancing particle.
ABS is the abbreviation of acrylonitrile/butadiene/styrene copolymer plate, is a kind of to have assembled the wear-resisting of PS, SAN, BS
The polymer of the excellent performances such as property, oil resistivity, impact resistance.The ABS that the adhesion of the present invention is added from blocking tune stream particle can
It is effectively increased the toughness and wear-resisting property of particle.
Polyvinyl alcohol is a kind of white plates, cotton-shaped or pulverulent solids.Its physical property by chemical constitution, alcoholysis degree,
The influence of the degree of polymerization.Wherein, the degree of polymerization of polyvinyl alcohol used in the present invention is the superelevation degree of polymerization (molecular weight 25-30 ten thousand),
Alcoholysis degree is 98%, has solution viscosity big, the high advantage of the intensity and solvent resistance after film forming.
Wherein, it is 0.1-5mm that the adhesion adjusts the grain size of stifled stream particle from card, and field application can be selected according to oil well demand
The particle of different-grain diameter demand, the method selected about grain size is common method, and this will not be detailed here.
Wherein, it is 1.10-1.18g/cm that the adhesion adjusts the density of stifled stream particle from card3, field application can be according to oil well
Demand selects the particle of different densities.Wherein, the stifled common method that is selected as flowing grain density is adjusted from card about to adhesion, herein
No longer it is described in detail.
Wherein, adhesion of the invention softens viscous from blocking tune stream particle under the conditions of 130 DEG C of formation temperature in crack
Even, particle becomes larger, and the final bridge formation for realizing fracture blocks, and 3-5MPa water flooding construction pressure differences can be born after closure.
According to another aspect of the present invention, the present invention provides a kind of adhesions adjusts the stifled preparation method for flowing particle from card,
Include the following steps：
(1) polystyrene, density adjuster, toughness reinforcing agent are uniformly mixed by predetermined ratio, obtain mixture；
(2) by the mixture of step (1), melt pelletization adjusts stifled stream particle to get adhesion from card at 200-260 DEG C.
Wherein, the polystyrene, density adjuster, toughness reinforcing agent ratio be：It counts in parts by weight, including 50-
80 parts of polystyrene, 20-45 parts of density adjusters and 2-8 parts of toughness reinforcing agents；Preferably, it counts in parts by weight, including 55-75
Part polystyrene, 25-40 parts of density adjusters and 3-6 parts of toughness reinforcing agents；Most preferably, it counts in parts by weight, including 63 parts
Polystyrene, 33 parts of density adjusters and 4 parts of toughness reinforcing agents.
The adhesion of the present invention adjusts stifled stream particle to be used for the fracture and vug carbonate reservoir by Fracture Control from card.
Carbonate Reservoir Partial Block is easily altered with fracture belt into using 130 DEG C of items of formation temperature by Fracture Control, water filling
Adhesion blocks up stream particle from the tune of blocking under part, and particle adhesion in crack becomes larger, and realizes the closure to water filling water breakthrough channel, starts
Secondary communicating passage improves water drive sweep area.
Embodiment
It is further illustrated the present invention below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions.Following implementation
The raw material used in example is that regular market purchase obtains.
Embodiment 1
(1) polystyrene of 57 parts by weight, the asphalt powder of 40 parts by weight, the polyvinyl alcohol of 4 parts by weight is uniform；
(2) by the mixture of step (1), melt pelletization, grain size are that 3-5mm adjusts stifled stream to get adhesion from card at 220 DEG C
Particle.
Embodiment 2
(1) polystyrene of 60 parts by weight, the asphalt powder of 36 parts by weight, the polyvinyl alcohol of 4 parts by weight is uniform；
(2) by the mixture of step (1), melt pelletization, grain size are that 3-5mm adjusts stifled stream to get adhesion from card at 220 DEG C
Particle.
Embodiment 3
(1) polystyrene of 63 parts by weight, the asphalt powder of 33 parts by weight, the polyvinyl alcohol of 4 parts by weight is uniform；
(2) by the mixture of step (1), melt pelletization, grain size are that 3-5mm adjusts stifled stream to get adhesion from card at 220 DEG C
Particle.
Embodiment 4
(1) polystyrene of 67 parts by weight, the asphalt powder of 29 parts by weight, the polyvinyl alcohol of 4 parts by weight is uniform；
(2) by the mixture of step (1), melt pelletization, grain size are that 3-5mm adjusts stifled stream to get adhesion from card at 220 DEG C
Particle.
Embodiment 5
(1) polystyrene of 70 parts by weight, the asphalt powder of 26 parts by weight, the polyvinyl alcohol of 4 parts by weight is uniform；
(2) by the mixture of step (1), melt pelletization, grain size are that 3-5mm adjusts stifled stream to get adhesion from card at 220 DEG C
Particle.
Embodiment 6
(1) ABS of the polystyrene of 60 parts by weight, the rubber powder of 36 parts by weight, 4 parts by weight is uniformly mixed；
(2) by the mixture of step (1), melt pelletization, grain size are that 3-5mm adjusts stifled stream to get adhesion from card at 200 DEG C
Particle.
Embodiment 7
(1) polystyrene of 80 parts by weight, the calcium powder of 12 parts by weight, the polyvinyl alcohol of 8 parts by weight is uniform；
(2) by the mixture of step (1), melt pelletization, grain size are that 3-5mm adjusts stifled stream to get adhesion from card at 260 DEG C
Particle.
Performance test
The performance of stifled stream particle is adjusted to test from card adhesion prepared by embodiment 1-7 below.Test method is this
The common method in field, it is not described here in detail.Test result is see table 1.
The performance test results of stifled stream particle are adjusted in the adhesion of 1 embodiment 1-7 of table from card
By the test result of table 1 it is found that adhesion prepared by the method for the present invention have from blocking tune stream particle it is close
Degree is controllable, and adhesive is good under the conditions of 130 DEG C, and the advantageous effect of 3-5MPa water flooding construction pressure differences can be born after closure, therefore, can
It is widely used in the fracture and vug carbonate reservoir by Fracture Control.
The present invention is hereinbefore disclosed with preferred embodiment, but it should be understood by those skilled in the art that, these
Embodiment is only used for describing the present invention, and should not be construed as limiting the scope of the invention.It should be noted that every implement with these
Example equivalent variation and displacement, should all be set as being covered by scope of the presently claimed invention.Therefore, protection scope of the present invention
The range that should be subject to defined in claims.
Claims (9)
1. a kind of adhesion is from blocking tune stream particle, which is characterized in that count in parts by weight, including 50-80 parts of polystyrene, 20-
45 parts of density adjusters and 2-8 parts of toughness reinforcing agents.
2. adhesion according to claim 1 is from blocking tune stream particle, which is characterized in that count in parts by weight, including 55-75
Part polystyrene, 25-40 parts of density adjusters and 3-6 parts of toughness reinforcing agents.
3. adhesion according to claim 1 or 2 is from blocking tune stream particle, which is characterized in that count in parts by weight, including 63
Part polystyrene, 36 parts of density adjusters and 4 parts of toughness reinforcing agents.
4. according to claim 1-3 any one of them adhesion from blocking tune stream particle, which is characterized in that the density adjuster
For calcium powder, rubber powder or asphalt powder.
5. according to claim 1-4 any one of them adhesion from blocking tune stream particle, which is characterized in that the toughness reinforcing agent
For ABS or polyvinyl alcohol.
6. according to the adhesion of claim 1-5 any one of them, card adjusts stifled stream particle certainly, which is characterized in that the adhesion blocks tune certainly
The grain size of stifled stream particle is 0.1-5mm.
7. according to the adhesion of claim 1-6 any one of them, card adjusts stifled stream particle certainly, which is characterized in that the adhesion blocks tune certainly
Stifled stream grain density is 1.10-1.18g/cm3。
8. according to the adhesion of claim 1-7 any one of them, card adjusts stifled stream particle certainly, which is characterized in that the adhesion blocks tune certainly
Particle is adhesive at 130 DEG C becomes larger for stifled stream, and 3-5MPa water flooding construction pressure differences can be born after closure.
9. the preparation method of stifled stream particle is adjusted in the adhesion of claim 1-8 any one of them from card, which is characterized in that including as follows
Step：
(1) polystyrene, density adjuster, toughness reinforcing agent are uniformly mixed by predetermined ratio, obtain mixture；
(2) by the mixture of step (1), melt pelletization adjusts stifled stream particle to get adhesion from card at 200-260 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810550718.6A CN108728070A (en) | 2018-05-31 | 2018-05-31 | Adhesion adjusts stifled stream particle and preparation method thereof from card |
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| CN201810550718.6A CN108728070A (en) | 2018-05-31 | 2018-05-31 | Adhesion adjusts stifled stream particle and preparation method thereof from card |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113309500A (en) * | 2020-02-26 | 2021-08-27 | 中国石油化工股份有限公司 | Tahe carbonate reservoir water injection well group flow channel adjusting method |
| CN113309499A (en) * | 2020-02-26 | 2021-08-27 | 中国石油化工股份有限公司 | Agent selection method suitable for flow channel adjustment of different fracture-cavity type reservoirs |
| CN114437700A (en) * | 2020-10-20 | 2022-05-06 | 中国石油化工股份有限公司 | Temperature-resistant and salt-resistant flow regulating agent suitable for fracture-cavity oil reservoir and preparation method and application thereof |
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| CN113309500A (en) * | 2020-02-26 | 2021-08-27 | 中国石油化工股份有限公司 | Tahe carbonate reservoir water injection well group flow channel adjusting method |
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Application publication date: 20181102 |