CN107573920A - A kind of biology enzyme capsule breaker and preparation method thereof - Google Patents
A kind of biology enzyme capsule breaker and preparation method thereof Download PDFInfo
- Publication number
- CN107573920A CN107573920A CN201710968343.0A CN201710968343A CN107573920A CN 107573920 A CN107573920 A CN 107573920A CN 201710968343 A CN201710968343 A CN 201710968343A CN 107573920 A CN107573920 A CN 107573920A
- Authority
- CN
- China
- Prior art keywords
- breaker
- enzyme
- biology enzyme
- peel
- carrier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a kind of biology enzyme capsule breaker in petroleum and natural gas exploration and development technical field and preparation method thereof, biology enzyme capsule breaker is 100 by mass ratio：（0.005~0.05）：（2.5~10）Solid carrier particle, biology enzyme and peel composition, biological enzyme layer is enclosed with each carrier granular, biological enzyme layer periphery is enclosed with peel, and the particle diameter of each carrier granular is 0.125 ~ 0.150mm, and the particle diameter for having wrapped up the carrier granular of peel is 0.425 ~ 0.850mm；The preparation method of biology enzyme capsule breaker comprises the following steps：Biological enzyme breaker is sprayed onto carrier particle surface in proportion, it is placed in again in fluidized bed granulation seed-coating machine, opening air compressor machine flies upward circulation above and below carrier granular, with peristaltic pump peel is sprayed to carrier granular, until the particle diameter length of carrier granular is to 0.425 ~ 0.850mm, taking-up is dried, and obtains biology enzyme capsule breaker.The present invention can effectively postpone the release of biological enzyme breaker, extend the fracturing fluid break time.
Description
Technical field
The invention belongs to petroleum and natural gas exploration and development technical field, more particularly to a kind of biological enzyme breaker and its
Preparation method.
Background technology
In the prior art, fracturing fluid is the pith of fracturing technique, is one of well production increment augmented injection major measure.Pressure
It is for making seam and taking the liquid of sand to split liquid, and fracturing fluid can will effectively take sand during sand is added, therefore will in pressing crack construction
Ask it that there is higher viscosity to ensure to make seam performance and solid-carrying performance, while add sand to terminate rear fracturing fluid to break glue in time and return
Row, reduce injury of the raffinate to stratum.
Thickener used in fracturing fluid is mainly galactomannans class natural plant gum and its modification derivant, and having can
Thickening, the characteristic that can be conveyed proppant, can suspend and can control leak-off, achieve good operation effectiveness in fracturing work,
After the completion of pressure break, if thickener molecule is not degraded effectively, serious reservoir damage is often caused.Therefore, pressure break is made
Industry requires addition gel breaker to degrade thickener molecule so as to reduce its molecular weight, fracturing fluid viscosity is reduced, so that fracturing fluid returns
Row, and proppant is stayed in crack, the crack of certain support strength is formed, and proppant pore permeability is established, reach pressure
Split the purpose of volume increase.For super low percolation oilfield, the gel breaker that screening is suitable for the reservoir fracturing liquid system just shows
Obtain extremely important.
In the prior art, when pressure break breaks glue, use the oxidized form gel breaker using persulfate as representative more, but it is this kind of broken
Jelly is higher in the prevalence of activation temperature（More than 55 DEG C）, activity is poor in low temperature reservoir fracturing liquid system, can not be effective
The problem of broken glue.Biotechnology develop into solve this problem provide a preferable method, using mannase as generation
The biological enzyme breaker of table, have low temperature active good, reaction selectivity is strong, the advantages of glue is thorough is broken, in the pressure break of low temperature reservoir
Good effect is achieved in transformation operation.It is disadvantageous in that：Biological enzyme breaker currently used in the market, its enzyme activity
Power is higher, and concentration is low（Ppm levels）, ensure that the biology enzyme breaker concentration after addition is larger for the difficulty of ppm levels, easily go out
The problem of biological enzyme breaker is excessive or very few is now added, causes brokenly glue time control improper, occurs to break the work such as glue sand fallout in advance
Industry accident；And biology enzyme directly contacts with guanidine gum fracturing fluid, addition moment is the viscosity that can reduce guanidine gum fracturing fluid rapidly, right
Taking sand and making seam performance for fracturing fluid produces considerable influence, limits fracturing fluid and plays a role.
The content of the invention
An object of the present invention is to provide a kind of biology enzyme capsule breaker, can effectively postpone biological enzyme breaker
Release, extend the fracturing fluid break time, be easy to control biology enzyme capsule breaker addition concentration, prevent brokenly glue time control
The improper accident for causing to occur to break glue sand fallout in advance；Extend the broken glue time, avoid the rapid viscosity reduction of fracturing fluid, when ensureing low temperature pressure break
Taking for fracturing fluid and makes seam performance at sand；Glue efficiency is broken with good low temperature, low temperature can be greatly improved and break glue effect.
The object of the present invention is achieved like this：A kind of biology enzyme capsule breaker, the biology enzyme capsule breaker by
Mass ratio is 100：（0.005~0.05）：（2.5~10）Solid carrier particle, biology enzyme and peel composition, each carrier
Biological enzyme layer is enclosed with particle, biological enzyme layer periphery is also enclosed with peel, and the particle diameter of each carrier granular is 0.125
~ 0.150mm, the particle diameter for having wrapped up the carrier granular of biological enzyme layer and peel are 0.425 ~ 0.850mm.
The present invention carries out brokenly glue in use, by biology enzyme capsule breaker addition guanidine gum fracturing fluid to guanidine gum fracturing fluid
Viscosity reduction.Compared with prior art, the beneficial effects of the present invention are：Biology enzyme parcel is attached on solid carrier particle, is formed
Biological enzyme layer, biological enzyme layer periphery are enclosed with peel, and after biology enzyme capsule breaker adds fracturing fluid, solid carrier particle disperses
Open and be sufficiently mixed with fracturing fluid, the peel slow mechanism dissolved on each carrier granular, the biology enzyme wrapped by peel can not be at once
Release plays a role, and plays a part of extending the broken glue time, after peel fully dissolves, biology enzyme contacts with fracturing fluid, starts
Broken glue viscosity reduction.The present invention extends brokenly the glue time, avoids fracturing fluid rapid viscosity reduction after being mixed with gel breaker, when ensureing low temperature pressure break
Taking for fracturing fluid and makes seam performance at sand；Effectively postpone the release of biological enzyme breaker, extend the broken glue time of fracturing fluid, prevent
The improper accident for causing to occur to break glue sand fallout in advance of broken glue time control；Biology enzyme is attached on solid carrier particle, biology enzyme
Layer is relative to the quality very little of the carrier granular at center, and the biology enzyme of only smaller quality can carry out brokenly glue on each carrier granular
Viscosity reduction, therefore the quality very little of effective biology enzyme of broken glue effect is played in biology enzyme capsule breaker, in addition biology enzyme glue
It is easy to control concentration during capsule gel breaker, when avoiding adding biological enzyme breaker, unmanageable ppm levels addition concentration occurs
Problem；The broken glue time of fracturing fluid is quantitatively controlled by the peel thickness on control vector particle, with suitable for different temperatures
The pressing crack construction of layer；There is biology enzyme good low temperature to break glue efficiency, can greatly improve low temperature and break glue effect.
As a further improvement on the present invention, the solid carrier particle is potassium chloride, sodium chloride, ammonium chloride or sulfuric acid
Ammonium.Potassium chloride, sodium chloride, ammonium chloride or ammonium sulfate are in turn attached on carrier granular as carrier granular, biology enzyme and peel.
As a further improvement on the present invention, the biology enzyme is 'beta '-mannase.'beta '-mannase has low temperature
Activity is good, and reaction selectivity is strong, breaks the advantages of glue is thorough, good effect is achieved in the fracturing reform operation of low temperature reservoir
Fruit.
As a further improvement on the present invention, the peel is vinyl chloride-vinylidene chloride copolymer, gelatin or PVA.
The second object of the present invention is to provide a kind of method for preparing above-mentioned biology enzyme capsule breaker, passes through party's legal system
Standby biology enzyme capsule breaker, delay release and the delayed breaking down of fracturing fluid of biological enzyme breaker can be realized, preferably
Meet the needs of fracturing work.
The object of the present invention is achieved like this：A kind of preparation method of biology enzyme capsule breaker, comprises the following steps：
（1）It is 100 according to mass ratio：（0.5~5.0）：（50~200）Get out corresponding solid carrier particle, biology enzyme breaks glue
Agent and peel solution, the particle diameter of the solid carrier particle is 0.125 ~ 0.150mm；
（2）By step（1）In ready biological enzyme breaker be sprayed onto on solid carrier particle so that on each carrier granular
Biological enzyme breaker is stained with, ensures that biological enzyme breaker is well mixed with solid carrier particle；
(3) by step（2）In be stained with the carrier granular of biological enzyme breaker and be placed in fluidized bed granulation seed-coating machine, then will step
Suddenly（1）In ready peel solution be added in the reservoir of fluidized bed granulation seed-coating machine, open air compressor machine, control fluid bed
Air pressure in granulator coater is 0.15 ~ 0.3MPa so that carrier granular in fluidized bed granulation seed-coating machine fly upward up and down by circulation,
The internal temperature for controlling fluid bed granulator coater is 38 DEG C ~ 42 DEG C, by peristaltic pump by peel solution with 4 ~ 6L/h flow velocity
Spray on the carrier particles, until peel solution has been sprayed, keeps carrier granular to circulate up and down and flies upward 2 ~ 4h, until solid carrier
The particle diameter length of particle closes air compressor machine, after carrier granular is taken out, normal temperature dries, and obtains biology enzyme glue to 0.425 ~ 0.850mm
Capsule gel breaker.
Compared with prior art, the beneficial effects of the present invention are：This method first breaks solid carrier particle and biology enzyme
Jelly is well mixed, then the carrier granular for being stained with biological enzyme breaker is placed in fluidized bed granulation seed-coating machine so that is carried
Body particle circulates fly upward up and down, peel solution is slowly sprayed on the carrier particles so that peel solution is with having wrapped up biology enzyme
The carrier granular of layer is sufficiently mixed, and can be equably wrapped on each carrier granular with biology enzyme by this method, in biology enzyme
Layer is outside to wrap up one layer of peel again, and each carrier granular in fluidized bed granulation seed-coating machine flown upward up and down by circulation, and biology enzyme is broken
Jelly, peel solution uniformly mix with solid carrier particle, ensure all to superscribe biology enzyme and peel on all carrier granulars.
Biology enzyme capsule breaker prepared by this method, the delay release and the delay of fracturing fluid that can realize biological enzyme breaker are broken
Glue, preferably meet the needs of fracturing work.
As a further improvement on the present invention, the step（2）During the biological enzyme breaker of middle spray, first by solid carrier
Grain is put into fluidized bed granulation seed-coating machine, then biological enzyme breaker is put into reservoir, opens air compressor machine, controls fluid bed system
Air pressure in grain seed-coating machine is 0.25 ~ 0.35MPa so that carrier granular in fluidized bed granulation seed-coating machine fly upward up and down by circulation,
The internal temperature for controlling fluid bed granulator coater is 38 DEG C ~ 42 DEG C, by peristaltic pump by biological enzyme breaker with 3 ~ 4L/h's
Flow velocity sprays on the carrier particles, until having sprayed, closes air compressor machine.Solid carrier particle is placed on fluidized bed granulation seed-coating machine
In so that carrier granular circulates fly upward up and down, biological enzyme breaker is uniformly sprayed on the carrier particles, it is ensured that each carrier
Biological enzyme breaker is all stained with grain.
As a further improvement on the present invention, the solid carrier particle is potassium chloride, sodium chloride, ammonium chloride or sulfuric acid
Ammonium.
As a further improvement on the present invention, the biological enzyme breaker is that BBK-100 biologies enzyme breaker, biology enzyme are broken
Jelly 150 or SUN-Y100 biology enzyme breakers.
As a further improvement on the present invention, the peel solution be mass concentration be 40% chlorine partial emulsion, mass concentration
The PVA emulsions that gelatin solution or mass concentration for 20% are 25%.It is chlorine partial emulsion, bright
Sol solution and PVA emulsions can cause the surface of carrier granular to form one layer of peel uniformly, fine and close, ensure that biology enzyme is broken
Jelly delay release and the delayed breaking down of fracturing fluid.
Embodiment
Embodiment 1
The biology enzyme capsule breaker of the present embodiment, the biology enzyme capsule breaker are 100 by mass ratio：0.01：2.5 chlorine
Change potassium carrier particle, 'beta '-mannase and vinyl chloride-vinylidene chloride copolymer peel composition, each chlorination potassium carrier
Beta-mannase enzyme layer is enclosed with grain, beta-mannase enzyme layer periphery is also enclosed with vinyl chloride-vinylidene chloride copolymer capsule
Clothing, the particle diameter of each potassium chloride carrier granular is 0.125mm, has wrapped up beta-mannase enzyme layer and vinyl chloride-inclined chloroethene
The particle diameter of the potassium chloride carrier granular of alkene copolymer peel is 0.425mm.
The preparation method of the biology enzyme capsule breaker of the present embodiment, comprises the following steps：
（1）It is 100 according to mass ratio：1：50 get out corresponding potassium chloride carrier granular, BBK-100 biologies enzyme breaker and matter
The chlorine partial emulsion that concentration is 40% is measured, the particle diameter of the potassium chloride carrier granular is 0.125mm；
（2）By step（1）In ready BBK-100 biologies enzyme breaker be sprayed onto on potassium chloride carrier granular so that each chlorine
Change and BBK-100 biology enzyme breakers are stained with potassium carrier particle, ensure BBK-100 biologies enzyme breaker and chlorination potassium carrier
Particle is well mixed；When spraying BBK-100 biology enzyme breakers, potassium chloride carrier granular is first put into fluidized bed granulation seed-coating machine
（Changzhou Li Xiong Machinery Manufacturing Co., Ltd. FLP-0.5 type fluidized bed granulation seed-coating machines）In, then by BBK-100 biology enzymes break glue
Agent is put into reservoir, opens air compressor machine, it is 0.25MPa to control the air pressure in fluid bed granulator coater so that potassium chloride carries
Body particle in fluidized bed granulation seed-coating machine fly upward up and down by circulation, and the internal temperature for controlling fluid bed granulator coater is 38 DEG C,
BBK-100 biologies enzyme breaker is sprayed on potassium chloride carrier granular with 4L/h flow velocity by peristaltic pump, until having sprayed, closed
Close air compressor machine；
（3）By step（2）In be stained with the potassium chloride carrier granulars of BBK-100 biology enzyme breakers and be placed on fluidized bed granulation bag
In clothing machine, then by step（1）In ready chlorine partial emulsion be added in the reservoir of fluidized bed granulation seed-coating machine, open pneumatics
Machine, it is 0.15MPa to control the air pressure in fluid bed granulator coater so that potassium chloride carrier granular is in fluidized bed granulation seed-coating machine
Interior circulation up and down is flown upward, and the internal temperature for controlling fluid bed granulator coater is 38 DEG C, by peristaltic pump by chlorine partial emulsion with 6L/
H flow velocity is sprayed on potassium chloride carrier granular, until chlorine partial emulsion has been sprayed, is kept potassium chloride carrier granular to circulate up and down and is flown
4h is raised, until the particle diameter length of potassium chloride carrier granular closes air compressor machine, after potassium chloride carrier granular is taken out, often to 0.425mm
Temperature is dried, and obtains the biology enzyme capsule breaker of the present embodiment.
Embodiment 2
The biology enzyme capsule breaker of the present embodiment, the biology enzyme capsule breaker are 100 by mass ratio：0.01：5 chlorination
Sodium carrier particle, 'beta '-mannase and vinyl chloride-vinylidene chloride copolymer peel composition, each sodium chloride vehicles particle
On be enclosed with beta-mannase enzyme layer, beta-mannase enzyme layer periphery is also enclosed with vinyl chloride-vinylidene chloride copolymer peel,
The particle diameter of each sodium chloride vehicles particle is 0.135mm, has wrapped up beta-mannase enzyme layer and vinyl chloride-vinylidene chloride is common
The particle diameter of the sodium chloride vehicles particle of polymers peel is 0.525mm.
The preparation method of the biology enzyme capsule breaker of the present embodiment, comprises the following steps：
（1）It is 100 according to mass ratio：1：100 be ready to corresponding sodium chloride vehicles particle, BBK-100 biologies enzyme breaker and
Mass concentration is 40% chlorine partial emulsion, and the particle diameter of the sodium chloride vehicles particle is 0.135mm；
（2）By step（1）In ready BBK-100 biologies enzyme breaker be sprayed onto on sodium chloride vehicles particle so that each chlorine
Change and BBK-100 biology enzyme breakers are stained with sodium carrier particle, ensure BBK-100 biologies enzyme breaker and sodium chloride vehicles
Particle is well mixed；When spraying BBK-100 biology enzyme breakers, sodium chloride vehicles particle is first put into fluidized bed granulation seed-coating machine
（Changzhou Li Xiong Machinery Manufacturing Co., Ltd. FLP-0.5 type fluidized bed granulation seed-coating machines）In, then by BBK-100 biology enzymes break glue
Agent is put into reservoir, opens air compressor machine, it is 0.35MPa to control the air pressure in fluid bed granulator coater so that sodium chloride carries
Body particle in fluidized bed granulation seed-coating machine fly upward up and down by circulation, and the internal temperature for controlling fluid bed granulator coater is 42 DEG C,
BBK-100 biologies enzyme breaker is sprayed on sodium chloride vehicles particle with 3L/h flow velocity by peristaltic pump, until having sprayed, closed
Close air compressor machine；
（3）By step（2）In be stained with the sodium chloride vehicles particles of BBK-100 biology enzyme breakers and be placed on fluidized bed granulation bag
In clothing machine, then by step（1）In ready chlorine partial emulsion be added in the reservoir of fluidized bed granulation seed-coating machine, open pneumatics
Machine, it is 0.3MPa to control the air pressure in fluid bed granulator coater so that sodium chloride vehicles particle is in fluidized bed granulation seed-coating machine
Interior circulation up and down is flown upward, and the internal temperature for controlling fluid bed granulator coater is 42 DEG C, by peristaltic pump by chlorine partial emulsion with 4L/
H flow velocity is sprayed on sodium chloride vehicles particle, until chlorine partial emulsion has been sprayed, is kept sodium chloride vehicles particle to circulate up and down and is flown
2h is raised, until the particle diameter length of sodium chloride vehicles particle closes air compressor machine, after sodium chloride vehicles particle is taken out, often to 0.525mm
Temperature is dried, and obtains the biology enzyme capsule breaker of the present embodiment.
Embodiment 3
The biology enzyme capsule breaker of the present embodiment, the biology enzyme capsule breaker are 100 by mass ratio：0.005：10 sulphur
Sour ammonium carrier granular, 'beta '-mannase and gelatin peel composition, β-sweet is enclosed with each ammonium sulfate carrier granular
Reveal glycan enzyme layer, beta-mannase enzyme layer periphery is also enclosed with gelatin peel, and the particle diameter of each ammonium sulfate carrier granular is
0.140mm, the particle diameter for having wrapped up the ammonium sulfate carrier granular of beta-mannase enzyme layer and gelatin peel are 0.750mm.
The preparation method of the biology enzyme capsule breaker of the present embodiment, comprises the following steps：
（1）It is 100 according to mass ratio：0.5：200 get out corresponding ammonium sulfate carrier granular, biological enzyme breaker 150 and matter
The gelatin solution that concentration is 20% is measured, the particle diameter of the ammonium sulfate carrier granular is 0.140mm；
（2）By step（1）In ready biological enzyme breaker 150 be sprayed onto on ammonium sulfate carrier granular so that each ammonium sulfate
Biological enzyme breaker 150 is stained with carrier granular, ensures that biological enzyme breaker 150 mixes with ammonium sulfate carrier granular
It is even；When spraying biological enzyme breaker 150, ammonium sulfate carrier granular is first put into fluidized bed granulation seed-coating machine（Changzhou power hero machine
Tool Manufacturing Co., Ltd FLP-0.5 type fluidized bed granulation seed-coating machines）In, then biological enzyme breaker 150 is put into reservoir, open
Air compressor machine is opened, it is 0.3MPa to control the air pressure in fluid bed granulator coater so that ammonium sulfate carrier granular is in fluidized bed granulation
Circulation is flown upward up and down in seed-coating machine, and the internal temperature for control fluid bed granulator coater is 40 DEG C, by peristaltic pump by biology enzyme
Gel breaker 150 is sprayed on ammonium sulfate carrier granular with 3.5L/h flow velocity, until having sprayed, closes air compressor machine；
（3）By step（2）In be stained with the ammonium sulfate carrier granular of biological enzyme breaker 150 and be placed on fluidized bed granulation seed-coating machine
In, then by step（1）In ready gelatin solution be added in the reservoir of fluidized bed granulation seed-coating machine, open air compressor machine,
It is 0.25MPa to control the air pressure in fluid bed granulator coater so that ammonium sulfate carrier granular is in fluidized bed granulation seed-coating machine
Circulation is flown upward up and down, and the internal temperature for controlling fluid bed granulator coater is 40 DEG C, by peristaltic pump by gelatin solution with 5L/h
Flow velocity spray on ammonium sulfate carrier granular, until gelatin solution spray, keep ammonium sulfate carrier granular to circulate up and down winged
3h is raised, until the particle diameter length of ammonium sulfate carrier granular closes air compressor machine, after ammonium sulfate carrier granular is taken out, often to 0.750mm
Temperature is dried, and obtains the biology enzyme capsule breaker of the present embodiment.
Embodiment 4
The biology enzyme capsule breaker of the present embodiment, the biology enzyme capsule breaker are 100 by mass ratio：0.05：10 chlorine
Change ammonium carrier granular, 'beta '-mannase and PVA peels composition, β-sweet dew is enclosed with each ammonium chloride carrier granular
Glycan enzyme layer, beta-mannase enzyme layer periphery are also enclosed with PVA peels, and the particle diameter of each ammonium chloride carrier granular is
0.150mm, the particle diameter for having wrapped up the ammonium chloride carrier granular of beta-mannase enzyme layer and PVA peels are 0.850mm.
The preparation method of the biology enzyme capsule breaker of the present embodiment, comprises the following steps：
（1）It is 100 according to mass ratio：5：200 be ready to corresponding ammonium chloride carrier granular, SUN-Y100 biologies enzyme breaker and
Mass concentration is 25% PVA emulsions, and the particle diameter of the ammonium chloride carrier granular is 0.150mm；
（2）By step（1）In ready SUN-Y100 biologies enzyme breaker be sprayed onto on ammonium chloride carrier granular so that each chlorine
Change and SUN-Y100 biology enzyme breakers are stained with ammonium carrier granular, ensure that SUN-Y100 biologies enzyme breaker carries with ammonium chloride
Body particle is well mixed；When spraying SUN-Y100 biology enzyme breakers, ammonium chloride carrier granular is first put into fluidized bed granulation bag
Clothing machine（Changzhou Li Xiong Machinery Manufacturing Co., Ltd. FLP-0.5 type fluidized bed granulation seed-coating machines）In, then SUN-Y100 is biological
Enzyme breaker is put into reservoir, opens air compressor machine, it is 0.3MPa to control the air pressure in fluid bed granulator coater so that chlorination
Ammonium carrier granular in fluidized bed granulation seed-coating machine fly upward up and down by circulation, and the internal temperature for controlling fluid bed granulator coater is 40
DEG C, SUN-Y100 biologies enzyme breaker is sprayed on ammonium chloride carrier granular with 4L/h flow velocity by peristaltic pump, until spray
It is complete, close air compressor machine；
（3）By step（2）In be stained with the ammonium chloride carrier granulars of SUN-Y100 biology enzyme breakers and be placed on fluidized bed granulation
In seed-coating machine, then by step（1）In ready PVA emulsions be added in the reservoir of fluidized bed granulation seed-coating machine, open empty
Press, it is 0.3MPa to control the air pressure in fluid bed granulator coater so that ammonium chloride carrier granular is coated in fluidized bed granulation
In machine up and down circulation fly upward, control fluid bed granulator coater internal temperature be 40 DEG C, by peristaltic pump by PVA emulsions with
5L/h flow velocity is sprayed on ammonium chloride carrier granular, until PVA emulsions have been sprayed, keeps ammonium chloride carrier granular to circulate up and down
3h is flown upward, until the particle diameter length of ammonium chloride carrier granular to 0.850mm, closes air compressor machine, after ammonium chloride carrier granular is taken out,
Normal temperature dries, and obtains the biology enzyme capsule breaker of the present embodiment.
Comparative example
BBK-100 biology enzyme breakers.
Prepare guanidine gum fracturing fluid：It is ready to containing HPG first level flour of the mass concentration for 0.3%, 0.50% clay stabilizer
With 0.30% demulsification cleanup agent, the guanidine gum fracturing fluid base fluid under natural ph, and it is molten to prepare the borax that mass concentration is 1.67%
Liquid mixes above-mentioned guanidine gum fracturing fluid base fluid with crosslinking agent, preparation obtains guanidine glue laminated and split for 100: 3 by volume as crosslinking agent
Liquid.
The gel breaker of above-mentioned 4 embodiments and 1 comparative example is separately added into the guanidine gum fracturing fluid of above-mentioned preparation, controlled
The mass percent that the gel breaker dosage of each embodiment accounts for guanidine gum fracturing fluid is respectively 0.02%, 0.05% and 0.10%, with frozen glue
Viscosity is broken glue terminal less than 5mPa.s, and the broken glue time of guanidine gum fracturing fluid is determined in 50 DEG C of water-baths, and specific data result is shown in
Table 1.
Table 1
The dosage of biology enzyme capsule breaker is fewer it can be seen from above table, and the broken glue time of fracturing fluid is longer.Prepare life
During thing enzyme capsule breaker, the dosage of biological enzyme breaker is reduced, the glue time can be extended brokenly；By the use for increasing peel solution
Amount, the thickness of peel can be increased, realize the broken glue time for further extending fracturing fluid.
Biology enzyme capsule breaker has obvious delay controllability compared with biological enzyme breaker, avoid fracturing fluid with
Rapid viscosity reduction after gel breaker mixing, taking for fracturing fluid and makes seam performance at sand when ensureing low temperature pressure break；Effectively delay biology enzyme is broken
The release of jelly, extend the broken glue time of fracturing fluid.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to which performing creative labour can makes one to some of which technical characteristic
A little to replace and deform, these are replaced and deformation is within the scope of the present invention.
Claims (9)
1. a kind of biology enzyme capsule breaker, it is characterised in that the biology enzyme capsule breaker is 100 by mass ratio：
（0.005~0.05）：（2.5~10）Solid carrier particle, biology enzyme and peel composition, wrap up on each carrier granular
There is biological enzyme layer, biological enzyme layer periphery is also enclosed with peel, and the particle diameter of each carrier granular is 0.125 ~ 0.150mm, bag
The particle diameter for having wrapped up in the carrier granular of biological enzyme layer and peel is 0.425 ~ 0.850mm.
2. a kind of biology enzyme capsule breaker according to claim 1, it is characterised in that the solid carrier particle is chlorine
Change potassium, sodium chloride, ammonium chloride or ammonium sulfate.
3. a kind of biology enzyme capsule breaker according to claim 1 or 2, it is characterised in that the biology enzyme is β-sweet
Reveal dextranase.
A kind of 4. biology enzyme capsule breaker according to claim 1 or 2, it is characterised in that the peel be vinyl chloride-
Metachloroethylene copolymer, gelatin or PVA.
5. the preparation method of a kind of biology enzyme capsule breaker according to claim 1, it is characterised in that including following step
Suddenly：
（1）It is 100 according to mass ratio：（0.5~5.0）：（50~200）Get out corresponding solid carrier particle, biology enzyme breaks glue
Agent and peel solution, the particle diameter of the solid carrier particle is 0.125 ~ 0.150mm；
（2）By step（1）In ready biological enzyme breaker be sprayed onto on solid carrier particle so that on each carrier granular
Biological enzyme breaker is stained with, ensures that biological enzyme breaker is well mixed with solid carrier particle；
（3）By step（2）In be stained with the carrier granular of biological enzyme breaker and be placed in fluidized bed granulation seed-coating machine, then will step
Suddenly（1）In ready peel solution be added in the reservoir of fluidized bed granulation seed-coating machine, open air compressor machine, control fluid bed
Air pressure in granulator coater is 0.15 ~ 0.3MPa so that carrier granular in fluidized bed granulation seed-coating machine fly upward up and down by circulation,
The internal temperature for controlling fluid bed granulator coater is 38 DEG C ~ 42 DEG C, by peristaltic pump by peel solution with 4 ~ 6L/h flow velocity
Spray on the carrier particles, until peel solution has been sprayed, keeps carrier granular to circulate up and down and flies upward 2 ~ 4h, until solid carrier
The particle diameter length of particle closes air compressor machine, after carrier granular is taken out, normal temperature dries, and obtains biology enzyme glue to 0.425 ~ 0.850mm
Capsule gel breaker.
A kind of 6. preparation method of biology enzyme capsule breaker according to claim 5, it is characterised in that the step
（2）During the biological enzyme breaker of middle spray, first solid carrier particle is put into fluidized bed granulation seed-coating machine, then biology enzyme is broken into glue
Agent is put into reservoir, opens air compressor machine, it is 0.25 ~ 0.35MPa to control the air pressure in fluid bed granulator coater so that carrier
Particle in fluidized bed granulation seed-coating machine fly upward up and down by circulation, and the internal temperature for controlling fluid bed granulator coater is 38 DEG C ~ 42
DEG C, biological enzyme breaker is sprayed on the carrier particles with 3 ~ 4L/h flow velocity by peristaltic pump, until having sprayed, closes pneumatics
Machine.
7. the preparation method of a kind of biology enzyme capsule breaker according to claim 5, it is characterised in that the solid carries
Body particle is potassium chloride, sodium chloride, ammonium chloride or ammonium sulfate.
A kind of 8. preparation method of biology enzyme capsule breaker according to claim 5, it is characterised in that the biology enzyme
Gel breaker is BBK-100 biologies enzyme breaker, biological enzyme breaker 150 or SUN-Y100 biology enzyme breakers.
9. the preparation method of a kind of biology enzyme capsule breaker according to claim 5, it is characterised in that the peel is molten
Liquid be mass concentration be 40% chlorine partial emulsion, mass concentration be 20% gelatin solution or mass concentration be 25% PVA breast
Liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968343.0A CN107573920A (en) | 2017-10-18 | 2017-10-18 | A kind of biology enzyme capsule breaker and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710968343.0A CN107573920A (en) | 2017-10-18 | 2017-10-18 | A kind of biology enzyme capsule breaker and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107573920A true CN107573920A (en) | 2018-01-12 |
Family
ID=61037215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710968343.0A Pending CN107573920A (en) | 2017-10-18 | 2017-10-18 | A kind of biology enzyme capsule breaker and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107573920A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722236A (en) * | 2018-08-27 | 2019-05-07 | 中国石油天然气股份有限公司 | Biological enzyme spansule gel breaker and preparation method thereof |
| CN110358519A (en) * | 2019-06-12 | 2019-10-22 | 欧志飞 | A kind of preparation method of low residue salt tolerant fracturing fluid |
| CN111876142A (en) * | 2020-07-27 | 2020-11-03 | 西安奥德石油工程技术有限责任公司 | High-temperature-resistant capsule gel breaker for fracturing and preparation method thereof |
| CN112480901A (en) * | 2020-12-17 | 2021-03-12 | 齐鲁工业大学 | Double-embedded biological enzyme sustained-release gel breaker and preparation method thereof |
| CN113372897A (en) * | 2021-05-11 | 2021-09-10 | 陕西天成旭化工科技有限公司 | Polymer acidic cross-linking agent and preparation method thereof |
| CN115703960A (en) * | 2021-08-11 | 2023-02-17 | 中国石油天然气集团有限公司 | Degradable polymer temporary plugging agent and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88100379A (en) * | 1987-01-16 | 1988-11-02 | 陶氏化学公司 | Handle the method on stratum |
| CN1140101A (en) * | 1995-07-12 | 1997-01-15 | 新疆石油管理局油田工艺研究所 | Tri-layer sphere type capsule breaker and preparing method thereof |
| CN105555902A (en) * | 2013-09-16 | 2016-05-04 | 巴斯夫酶有限责任公司 | Controlled break enzyme formulations |
| CN106467736A (en) * | 2015-08-21 | 2017-03-01 | 中国石油化工股份有限公司 | A kind of fracturing fluid for shale pressure break and preparation method thereof |
| CN106893574A (en) * | 2017-02-22 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of pressure break slow release type biological enzyme breaker and preparation method thereof |
-
2017
- 2017-10-18 CN CN201710968343.0A patent/CN107573920A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88100379A (en) * | 1987-01-16 | 1988-11-02 | 陶氏化学公司 | Handle the method on stratum |
| CN1140101A (en) * | 1995-07-12 | 1997-01-15 | 新疆石油管理局油田工艺研究所 | Tri-layer sphere type capsule breaker and preparing method thereof |
| CN105555902A (en) * | 2013-09-16 | 2016-05-04 | 巴斯夫酶有限责任公司 | Controlled break enzyme formulations |
| CN106467736A (en) * | 2015-08-21 | 2017-03-01 | 中国石油化工股份有限公司 | A kind of fracturing fluid for shale pressure break and preparation method thereof |
| CN106893574A (en) * | 2017-02-22 | 2017-06-27 | 中国石油化工股份有限公司 | A kind of pressure break slow release type biological enzyme breaker and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722236A (en) * | 2018-08-27 | 2019-05-07 | 中国石油天然气股份有限公司 | Biological enzyme spansule gel breaker and preparation method thereof |
| CN110358519A (en) * | 2019-06-12 | 2019-10-22 | 欧志飞 | A kind of preparation method of low residue salt tolerant fracturing fluid |
| CN111876142A (en) * | 2020-07-27 | 2020-11-03 | 西安奥德石油工程技术有限责任公司 | High-temperature-resistant capsule gel breaker for fracturing and preparation method thereof |
| CN111876142B (en) * | 2020-07-27 | 2022-08-09 | 西安奥德石油工程技术有限责任公司 | High-temperature-resistant capsule gel breaker for fracturing and preparation method thereof |
| CN112480901A (en) * | 2020-12-17 | 2021-03-12 | 齐鲁工业大学 | Double-embedded biological enzyme sustained-release gel breaker and preparation method thereof |
| CN112480901B (en) * | 2020-12-17 | 2022-09-30 | 齐鲁工业大学 | Double-embedded biological enzyme sustained-release gel breaker and preparation method thereof |
| CN113372897A (en) * | 2021-05-11 | 2021-09-10 | 陕西天成旭化工科技有限公司 | Polymer acidic cross-linking agent and preparation method thereof |
| CN115703960A (en) * | 2021-08-11 | 2023-02-17 | 中国石油天然气集团有限公司 | Degradable polymer temporary plugging agent and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107573920A (en) | A kind of biology enzyme capsule breaker and preparation method thereof | |
| Hu et al. | Ions-induced gelation of alginate: Mechanisms and applications | |
| US10472943B2 (en) | Self-suspending proppants for hydraulic fracturing | |
| US9644139B2 (en) | Self-suspending proppants for hydraulic fracturing | |
| Jarosiewicz et al. | Controlled-release NPK fertilizer encapsulated by polymeric membranes | |
| CN104140568B (en) | A kind of edible film with lasting anti-oxidation function and preparation method thereof and application | |
| CN1293136C (en) | Release-control composition | |
| US9796916B2 (en) | Self-suspending proppants for hydraulic fracturing | |
| US20200115609A1 (en) | Controlled break enzyme formulations | |
| RU2621239C2 (en) | Self-suspending proppants for hydraulic fracturing | |
| WO2013192634A2 (en) | Self-suspending proppants for hydraulic fracturing | |
| CN106661442A (en) | Propping agent and method for placing same in a hydraulic fracture | |
| CN106470666A (en) | Microcapsule encapsulation technology and products thereof | |
| CN102887803A (en) | Low-pressure formed explosive | |
| CN106893574A (en) | A kind of pressure break slow release type biological enzyme breaker and preparation method thereof | |
| CN110193007A (en) | A kind of preparation method and applications of pH response type hydrogel | |
| CN108949138A (en) | A kind of film covering type thickens the preparation method and proppant of proppant certainly | |
| CN109722236A (en) | Biological enzyme spansule gel breaker and preparation method thereof | |
| CN110305644B (en) | Preparation and application of leakage-reducing flexible colloidal particle well-flushing fluid | |
| CN109265605A (en) | A kind of low adsorption salt tolerant friction reducer suitable for shale reservoir fracturing reform | |
| CN105860877A (en) | Addition agent for starch adhesive and preparation method and application method of addition agent for starch adhesive | |
| JP2014520665A (en) | Method of encapsulation and immobilization | |
| CN105623639A (en) | Preparation method of composite gel breaking agent | |
| CN105733550B (en) | A kind of recyclable fracturing fluid gelatinizer of amino acids and preparation method thereof | |
| CN107699193A (en) | A kind of fast-drying type cable core sizing adhesive and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180112 |