CN107163156A - Glucomannan based on nanometer technology preparation and its application in the oil industry - Google Patents
Glucomannan based on nanometer technology preparation and its application in the oil industry Download PDFInfo
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- C08B37/006—Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
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- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
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Abstract
A nanometer method for Portugal's mannose is produced the invention discloses a kind of, include multiple steps, so that raw material pulverizing processing 15 90 minutes in pulverization cylinder, the velocity of rotation for controlling stirring rod simultaneously is 500 4000 revs/min, and by the FREQUENCY CONTROL of ultrasonic wave in the range of 20k 50kHz, finally become more meticulous in airslide disintegrating mill 10 70 minutes；Final production goes out particle diameter and is controlled in for the nanometer Glucomannan in 200 400nm, and the molecular weight distribution of the Glucomannan in 100,000 20 ten thousand Da.Biological enzyme formulation formation diverting agent will be added in these nanometer of Glucomannan, viscosity properties are significantly improved, with more outstanding performance.The present invention is mutually bridged using these macromolecular substances, and thin and tough and tensile barrier film is formed on the borehole wall, and adhesiveness is strong, can block crack, and bearing strain ability is strong, with preferable elongation, while easily carrying out broken glue returns row.
Description
Technical field
The present invention relates to a kind of nanometer refinement technology, further relate to using the Glucomannan of technology preparation and its in oil work
Application in industry.
Background technology
Nanometer (English：Nanometre) it is long measure, International System of Units symbol is nm.Original claims millimicron, is exactly 10-9
Rice (1/1000000000th meter), i.e., 10-6Millimeter (1/1000000th millimeters).As centimetre, decimeter with meter as, be length
Linear module.Equivalent to 4 times atom sizes, the length than single bacterium is also small.International common name is nanometer, letter
Write nm.
The preparation method of current nano-particle is generally divided into two major classes：Physical method and chemical method.Physical method is also known as
For comminuting method, it is cake mass to be crushed to solid material from large to small, i.e., nano-powder particle is made；Chemical method is also known as
Method for constructing, it is to pass through two stage nano materials of nucleation and growth by lower limit atom, ion, molecule.Using chemistry as base
The nano-powder manufacture method of plinth can obtain several nanometers of powder.But manufacturing cost is sometimes at a relatively high, and it is difficult amplification, particle diameter
Distribution is also more uneven.Ultramicro grinding refers to the mistake that thing grain particle is crushed to small particle using mechanical or hydrokinetic approach
Journey.
Different according to the mode of cohesive force between destruction material molecule, current Ultra-Micro Grinding Equipment can be divided into mechanical crushing
Machine, airslide disintegrating mill, ultrasonic grinder etc..
At present, nanometer pulverization equipment mainly have multi-D swing high energy nanon ball-mill, multilayer classifying nano ball grinding machine,
High speed nano grinder, high speed shear ultrafine crusher, airslide disintegrating mill, ultrasonic wave nano grinder etc..
The main component of fine powder is Glucomannan, also known as konjaku glucomannan (KGM) after konjaku processing, and Glucomannan is
Know the maximum natural macromolecule amylose of viscosity in natural plant gum, polymerize by glucose and mannose and form heteroglycan.Mean molecule quantity
For 200,000-200 ten thousand, profile is white or cream is to light brown yellow powder, and it by molecular proportion is 1 to be：1.6 glucose and mannose
Residue is polymerized by β-(Isosorbide-5-Nitrae)-glycosidic bond, the side chain that there is β (1,3) glycosidic bond composition on some saccharide residue C-3, main
There is 1 side chain per 32-80 saccharide residue on chain, every side chain has on several to tens saccharide residues, main chain every about 19 sugar
There is an acetyl group combined with ester bond on residue.The KGM weight average molecular weight measured using light scattering method is 1.12 × 106Or
2.619×105, and the viscosity average molecular weigh for measuring KGM is 8.09 × l05.KGM solids have regular fibrous strands pattern, KGM
Between there are a large amount of hydrogen bonds, do not form stable crystallization, but exist with amorphous state；KGM in presence of water, will divide
Substantial amounts of hydrogen bond is formed between subchain to maintain the state of micelle in solution, and micelle size in nanoscale.
Konjaku glucomannan has a variety of excellent characteristics, such as gelation, edibility, film forming, therefore in food, doctor
Each production field such as medicine, chemical industry has extensive purposes.But konjaku Portugal Glucomannan has the spies such as the low, poor fluidity of solubility
Property, its application is subject to certain restrictions, and is the further performance for improving KGM, expands its application, generally by Physical,
The means such as chemical method and bioanalysis are degraded to it.
The fracture of high molecular polymer can be generally divided on microcosmic it is intermolecular slip, Van der Waals force or hydrogen bond destruction and
Chemical bond destroys three types.The destruction of first two type can't cause the degraded of molecule, and the destruction of only chemical bond just may be used
The degraded of molecule can be caused.Polymer is plasticated in polymerization, melting extrusion, and Polymer Solution is made by strong agitation or ultrasonic wave
Used time, macromolecular chain may be all set to be broken and degrade.The mechanical force and chemical signs of degradation of konjaku glucomannan is for actual production
With important inspiration meaning.
Particle be small solid, liquid or the gas being under cutting state or have vital microorganism,
Bacterium, virus etc..In most cases, the word of particle one refers to solid particle, and liquid particles and gas particles then correspondingly turn into
Drop and bubble.The particle swarm being made up of many particles turns into particle system.Powder is then solid particle under rarefaction
Accumulation.Particle swarm or particle system are made up of many particles.If all particles of composition particle swarm are respectively provided with identical or near
Like identical granularity, then the particle swarm is called monodispersed.When particle swarm is made up of particle not of uniform size, then as many points
Scattered.
Current nanometer pulverization technology is varied, but the nano-scale particle after crushing can not accurately control its molecule
After amount is, it is necessary to crush, then screening is measured, so as to obtain the product of needs.Substantial amounts of work has just been lost in this.
Konjaku glucomannan, wherein glucose, mannose ratio are 1：1.6~1.7, main chain is connected with β-Isosorbide-5-Nitrae-glycosidic bond
Connect, side chain is connected with 1-3 glycosidic bonds, and its molecular weight is up to 1,000,000 grades.Water-soluble gumminess is big, with typical pseudoplastic behavior.Its is good
The performances such as good thickening, blending, sizing, gelling, film forming, lubrication and bio-compatible have been widely used for petroleum industry, food,
The fields such as packaging, coating, biological medicine and cosmetic.Particularly in petroleum industry using increasingly extensive.
Application in the oil industry includes the application and the utilization in DP technology of drilling fluid.Can be in diverting agent, leak stopping
Applied in agent, tackifier, fracturing fluid, Weak Gels and corrosion inhibiter.
Konjaku polymer temporarily blocked drilling fluid mainly using konjaku glucomannan macromolecular link network on well (hole) wall every
Film is acted on.These macromolecular substances are mutually bridged, and are attached to after filter is remaining on well (hole) wall and are formed barrier film, these barrier films are thin and tough and tensile,
Permeability is extremely low, it is sufficient to meet temporarily stifled require.Konjaku polymer is bored simultaneously and liquid has good encapsulating ability, can be effectively
Suppress the scattered of drilling cuttings.
The preparation of special compositional biological enzyme will be matched, in the solution for being added to konjaku polymer.Biological enzyme formulation conduct
Biocatalyst, can control polymer to become the degradation speed of short chain small molecule by long-chain macromolecule.In drilling end-of-job
Afterwards, polymer molecule becomes short chain by long-chain, and the viscosity of drilling fluid is reduced taking human as controllable mode.With drilling fluid viscosity
Reduction, the mudcake being previously formed is abolished automatically, the mobility enhancing of production formations fluid, so as to recover the permeability on simultaneously all stratum, is reached
To the purpose for improving oil gas well production.
Compared with traditional temporary plugging technique, the advantage of konjaku temporarily blocked drilling fluid is presented as automatic degraded, fundamentally changes
Enter de-plugging process, improve production efficiency, and greatly save de-plugging cost.Biology enzyme can effective and degradable polymerization
Thing, therefore konjaku temporarily blocked drilling fluid avoids injury problem of the drilling completion post-consumer polymer to payzone.
But the konjaku glucomannan molecular weight that current konjaku temporarily blocked drilling fluid is used is excessive, is million grades, this makes
The drilling well that its performance not enough meets the modern times require that.
Sichuan, North China Oilfield research and konjaku fracturing fluid is applied, consisting of：0.5% modified konjaku glue+0.15%
Organic titanium or the potassium peroxydisulfate of borax+0.012%.Its main performance is as follows：
1. rheological characteristic：90 degrees Celsius, 170s-1Lh or so is sheared, is determined with RV20 rotational viscometers, K=4026Pa
S0.35：
2. temperature resistance shear resistant：90 degrees Celsius, 170s-1Shearing 60min, (wherein 20min, 90 degrees Celsius of perseverances are sheared in heating
Warm 40min), viscosity is 78.8mPaS；
3. temperature stability：90 degrees Celsius of constant temperature 60min, in 170s-1Under viscosity be 235.9mPaS；
4. leak-off：70 degrees Celsius, 3.5MPa, two filter paper determine, leakoff coefficent is 8.56 × 10-4m/min1/2
The content of the invention
The present invention, there is provided a kind of nanometer preparation method of Glucomannan, can pass through for deficiency of the prior art
The particle diameter of product after control refinement, so as to accurately control the molecular weight of product after dispersion and fining, obtains molecular weight distribution collection
In nano functional sugar, the technical method is more convenient, environmental protection, cost reduction, more commercial competitiveness；These macromolecular Portugals are sweet poly-
Sugared mutually bridge joint, forms thin and tough and tensile barrier film on the borehole wall, and adhesiveness is strong, can block crack, and bearing strain ability is strong, tool
There is preferable elongation, while easily carrying out broken glue returns row, be highly suitable in petroleum industry as diverting agent using.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：One kind production nanometer Portugal is sweet
The method of glycan, including step one, by Glucomannan material pulverizing processing 15-90 minutes in pulverization cylinder, the rotation of stirring rod
Speed is 500-4000 revs/min；Step 2, starts discharge belt, and paddle is rotated to the material brought up and is delivered to and is gathered materials
In bucket；Step 3, starts pump and the material in aggregate bin is delivered into airslide disintegrating mill by the first discharge nozzle, and pass through second
Discharge nozzle is delivered to the first high-pressure pump；Step 4, starts the first high-pressure pump, and material is sprayed into air-flow crushing by the first air jet pipe
The material exported in machine and from the first discharge nozzle collides, and then stops the first high-pressure pump；Step 5, starts the second high-pressure pump,
Material is sprayed into airslide disintegrating mill by the second air jet pipe and internal material collides, then stops the second high-pressure pump；Step
Rapid six, start the 3rd high-pressure pump, material is sprayed into airslide disintegrating mill by the 3rd air jet pipe and internal material collides, so
Stop the 3rd high-pressure pump afterwards；Step 7, repeat step three to six, repetition time 10-70 minute, while starting ultrasonic wave
Device, the frequency of ultrasonic wave is 20k-50kHz；Step 8, material transfer portion by the material transportation collected from discharge nozzle to finished bin,
Material in finished bin is a nanometer Glucomannan.
A kind of nanometer Glucomannan produced with the aforedescribed process, the particle diameter of the nanometer Glucomannan is 200-
400nm, molecular weight distribution is 100,000-20 ten thousand Da.It is poly- that mannosan in this particle diameter and molecular weight ranges is referred to as sweet dew Asia
Sugar or the sub- glycan of nanometer sweet dew.
A kind of nanometer Glucomannan of above-mentioned method production is added in the application of petroleum industry in nanometer Glucomannan
Biological enzyme formulation formation diverting agent, viscosity properties are improved, temperature resistance shear resistant：90 degrees Celsius, 170s-1Shear 60min (its
Middle heating shearing 20min, 90 degrees Celsius of constant temperature 40min), viscosity is 2300-3100mPaS；Temperature stability：90 degrees Celsius
Constant temperature 60min, in 170s-1Under viscosity be 1800-2100mPaS.
Glucomannan is crushed to nano level particle by the present invention using nanometer pulverization device, controls the particle diameter of these particles
In the range of 200-400nm, so as to obtain polyoses grain of the molecular weight distribution in 100,000-20 ten thousand Da, these macromoleculars
Material is mutually bridged, and thin and tough and tensile barrier film is formed on the borehole wall, and adhesiveness is strong, can block crack, and bearing strain ability is strong,
With preferable elongation, while easily carrying out broken glue returns row.
Brief description of the drawings
Fig. 1 is pulverization cylinder structural representation of the present invention.
Fig. 2 is airslide disintegrating mill structural representation of the present invention.
Fig. 3 is Pneumatic crushing machine gaseous flow diagram of the invention.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：As shown in Figure 1 to Figure 3, one
The method for producing nanometer Glucomannan, including step one are planted, by Glucomannan material pulverizing processing 15-90 points in pulverization cylinder 1
Clock, the velocity of rotation of stirring rod 13 is 500-4000 revs/min；Step 2, starts discharge belt 15, paddle 131 is rotated
The material brought up is delivered in aggregate bin 31；Step 3, starts pump 3 and the material in aggregate bin 31 is passed through into the first discharge nozzle
321 are delivered to airslide disintegrating mill 4, and are delivered to the first high-pressure pump by the second discharge nozzle 322；Step 4, starts first high
Press pump, sprays into the material exported in airslide disintegrating mill 4 and from the first discharge nozzle 321 by the first air jet pipe 5 by material and collides
Hit, then stop the first high-pressure pump；Step 5, starts the second high-pressure pump, material is sprayed into air-flow crushing by the second air jet pipe 6
Collided in machine 4 with internal material, then stop the second high-pressure pump；Step 6, starts the 3rd high-pressure pump, and material is passed through into the
Three air jet pipes 42 are sprayed into airslide disintegrating mill 4 and internal material collides, and then stop the 3rd high-pressure pump；Step 7, is repeated
Step 3 is to six, and repetition time 10-70 minute, while starting supersonic generator 7, the frequency of ultrasonic wave is 20k-50kHz；Step
Rapid eight, material transfer portion is by the material transportation collected from discharge nozzle 41 to finished bin, and the material in finished bin is that nanometer Portugal is sweet poly-
Sugar.
The method of above-mentioned preparation nanometer Glucomannan, it is necessary to using nanometer preparation facilities, the device includes pulverization cylinder 1,
The paddle 131 of spiral above and below being provided with stirring rod 13, the stirring rod 13 is provided with the pulverization cylinder 1, it is described to crush
1 bottom of cylinder is provided with motor 11, and the output shaft 12 of the motor 11 is connected with the stirring rod 13, and the bottom of pulverization cylinder 1 is set
Feed pipe 14 is equipped with, the top of pulverization cylinder 1 is provided with discharge belt 15, and the discharge belt 15 is close to the stirring
The top of leaf 131, is provided with cooling cylinder 2 outside the pulverization cylinder 1, and the bottom of cooling cylinder 2 is provided with water inlet pipe 21 and top
Outlet pipe 22 is connected with the wall of side, the other end of the discharge belt 15 is arranged at the top of aggregate bin 31, the aggregate bin 31
Lower section is connected with pump 3, and the pump 3 is provided with discharging portion 32, and the discharging portion 32 is provided with the first discharge nozzle 321 and the second discharging
Pipe 322, first discharge nozzle 321 is connected with airslide disintegrating mill 4, and the side wall of airslide disintegrating mill 4 is provided with the first air jet pipe 5
With the second air jet pipe 6, the top of airslide disintegrating mill 4 is provided with the 3rd air jet pipe 42, first air jet pipe 5, the second jet
The axis of the air jet pipe 42 of pipe 6 and the 3rd intersects at a point, and second discharge nozzle 322 is connected with the first high-pressure pump and second high
Press pump, the output end of first high-pressure pump connects first air jet pipe 5, and the output end connection of second high-pressure pump is described
Second air jet pipe 6, the 3rd air jet pipe 42 is connected with the 3rd high-pressure pump, and the bottom of airslide disintegrating mill 4 is provided with discharge nozzle
41, the discharge nozzle 41 is connected with material transfer portion, the material transfer portion connect first high-pressure pump, the second high-pressure pump and
3rd high-pressure pump, the material transfer portion is also associated with being arranged at baffle portion 45 in finished bin, the airslide disintegrating mill 4, described
It is provided with baffle portion 45 between drainage inclined-plane 44, the top of drainage inclined-plane 44 and the airslide disintegrating mill 4 and is provided with arc
Drainage cambered surface 43, the end of drainage cambered surface 43 is connected with the 3rd air jet pipe 42, and grinding is provided with the pulverization cylinder 1
Annular is provided with two circle ultrasonic wave portions on ball, the outer wall of airslide disintegrating mill 4, often encloses ultrasonic wave portion and is provided with odd number ultrasonic wave
Generator 7.
When being refined, because this programme uses physics mode, more heat can be produced.In powder
Cooling cylinder 2 is provided with outside broken cylinder 1, temperature control is carried out by way of water cooling.Temperature control portion 8 is provided with outside airslide disintegrating mill 4.Control
There is interval in warm portion 8 and the outer wall of airslide disintegrating mill 4, water can be injected in this interval and carries out temperature control, injection can also be passed through
The relatively low gas of temperature carries out cooling temperature control.
A kind of nanometer Glucomannan produced with the aforedescribed process, the particle diameter of the nanometer Glucomannan is 200-
400nm, molecular weight distribution is 100,000-20 ten thousand Da.It is poly- that mannosan in this particle diameter and molecular weight ranges is referred to as sweet dew Asia
Sugar or the sub- glycan of nanometer sweet dew.
A kind of nanometer Glucomannan of above-mentioned method production is added in the application of petroleum industry in nanometer Glucomannan
Biological enzyme formulation formation diverting agent, viscosity properties are improved.Average value was determined after entering many experiments detection, following number is known
According to：Temperature resistance shear resistant：90 degrees Celsius, 170s-160min (wherein heating shearing 20min, 90 degrees Celsius of constant temperature 40min) is sheared,
Viscosity is 3012.7mPaS；Temperature stability：90 degrees Celsius of constant temperature 60min, in 170s-1Under viscosity be 2135.7mPa
S。
The product cut size obtained by the nanometer refinement technology of the present invention, overall particle diameter distribution approximate normal distribution, absolutely
Most of particle diameter concentrates on 200-400nm, then by detection, can determine obtained product is that molecular weight distribution is 100,000-20
In the range of ten thousand Da.Mechanical force forces KGM meta system by uniform sequential cutting, makes original macromolecular chain and hydrogen bond
Fracture obtains the relatively low oligosaccharide of molecular weight.
The nanometer refinement technology of the present invention is the method for mixing refinement, passes through the dispersion and fining time of control machine, rotating speed
To control the particle diameter of finished product after dispersion and fining.
Because under prior art detect polysaccharide molecular weight be a sufficiently complex cumbersome process, especially by chemistry or
The Glucomannan that person's biological mode is degraded, it is even more a cumbersome operation that molecular weight detection is carried out to it, and cost is very
It is high.The particle diameter overall distribution of the Glucomannan product of the nanometer device for thinning production provided in this programme is similar to normal distribution.
Entered multiple detection contrast, it is found that the particle diameter of the Glucomannan of present apparatus production is in the range of 200-400nm, and phase
Corresponding molecular weight distribution is between 100,000-20 ten thousand Da.The Glucomannan of present apparatus production, its particle diameter and molecular weight are presented
A kind of corresponding relation.This just enormously simplify detection process, as long as the particle diameter of detection particle, so as to save substantial amounts of work
Make the time.That is, the Glucomannan produced by the present apparatus, as long as by size controlling in the range of 200-400nm, with regard to energy
Enough ensure molecular weight distribution between 100,000-20 ten thousand Da.
The present invention utilizes nanometer device for thinning that to nano level particle, Glucomannan dispersion and fining is controlled into these particles
Particle diameter is in the range of 200-400nm, so as to obtain polyoses grain of the molecular weight distribution in 100,000-20 ten thousand Da, these are big
Molecular substance is mutually bridged, and thin and tough and tensile barrier film is formed on the borehole wall, and adhesiveness is strong, can block crack, bearing strain energy
Power is strong, with preferable elongation, while easily carrying out broken glue returns row.
Main performance is as follows：
Temperature resistance shear resistant：90 degrees Celsius, 170s-1Shearing 60min, (wherein 20min, 90 degrees Celsius of constant temperature are sheared in heating
40min), viscosity is 2300-3100mPaS；
Temperature stability：90 degrees Celsius of constant temperature 60min, in 170s-1Under viscosity be 1800-2100mPaS.
Compared with common million grades of Glucomannan particle, 100,000 grade particles produced by this method, with more
Outstanding performance.Also, this method utilizes the size of grain diameter, so that it is determined that the distribution of molecular weight, so that result is more
Plus precisely, and detection also becomes more to facilitate.Physical method can be utilized by determining particle diameter, and if detection molecules amount, then be needed
Use chemical mode.
The nanometer Glucomannan of this programme production, it can also be used to manufacture fracturing fluid.Fracturing fluid be during oil-gas mining,
In order to improve the liquid used in fracture condudtiviy, its main function is shelly ground, causes the crack of certain physical dimension,
Carry proppant and enter crack to precalculated position.With the appearance of the massive hydraulic fracture technologies such as horizontal well, batch production pressure break, to pressure
The prop-carrying capacity for splitting liquid proposes new requirement, and common way is to improve thickening agent consumption, reaches higher base fluid viscosity and frozen glue
Intensity is to realize that high sand ratio takes sand.But then, going deep into Reservoir Development, middle and low permeable reservoir is increasing,
The low residue of fracturing fluid, Low Damage are asked, the fracturing fluid of high thickening agent consumption is difficult to reach requirement.
The performance requirement of fracturing fluid：Viscosity is high, and lubricity is good, and filter loss is small, low frictional resistance, to by the fluid layer of pressure break without stifled
Plug and damage, heat endurance and shearing stability property good, low residue, compatibility good, broken glue rapid, goods pollution-free to fluid ore deposit
Source is wide, is easy to prepare, economical rationality.
In existing Oil/gas Well hydraulic fracturing technology, pressure is used as using natural plant gum and their related chemically modified derivatives
The thickener of liquid is split in occupation of leading position.This kind of natural plant gum mainly has：Guar gum, fenugreek gum, sesbania gum, cellulose, konjaku
Derivative after glue and chemical modification.In fracturing fluid in addition to above-mentioned natural plant gum thickener, it is necessary to added in fracturing fluid
Related additive, to improve the combination property of fracturing fluid, to reduce injury of the fracturing fluid to oil-gas Layer.Simultaneously because fracturing fluid
In must use gel breaker, gel breaker reduces the viscosity of fracturing fluid all the time in fracturing process, affects the reliability of construction.And
And fracturing fluid must be returned after the completion of pressing crack construction and drain into ground, and the processing of ground liquids is drained into returning, there is strict both at home and abroad
Requirement, the liquid for the row of returning is not reusable, if be not effectively treated to it, easily environment is polluted.
Konjaku glucomannan can carry out physical modification with other compositions using the method for crushing and selection by winnowing.Carrying out crushing can
Konjaku glucomannan particle is set to become smaller coenobium, so as to be easier to water-soluble.Water insoluble composition can be crushed in addition
Cheng Geng little particle is with profit and konjaku glucomannan grain sorting.Modified, its heat-resisting property is improved particularly after physical modification
Larger, this is conducive to deep well drilling.
Konjaku glucomannan uses the method that chemical modification is combined with physical modification, can improve the water solubility of konjac glucomannan
And retaining wall performance, its broken glue residue is reduced, the few konjac glucomannan of high, the broken glue residue of good water solubility, water-soluble adhesiveness is obtained, it is right
Oil reservoir matrix and fracture conductivity damage are low, are conducive to the permeability of formation protection gas, improve effect of increasing production.This modified evil spirit
Taro is pollution-free to stratum.
The nanometer Glucomannan of this programme manufacture, uses it for manufacturing a kind of fracturing fluid of superior performance.Carry out by weight
Calculate, the raw material composition of fracturing fluid includes：0.2-0.8 parts of Glucomannan of nanometer, 0.3-0.7 parts of crosslinking agent, composite synergist
100 parts of 0.6-2.5 parts, 0.1-0.3 parts of water-soluble fibre, 0.1-3.5 parts of gel breaker and water.
Wherein, crosslinking agent include one kind in organic borate cross-linker, organic zirconium crosslinker and organic boron zirconium cross linking agent etc. or
Several combinations.If crosslinking agent include the material in it is two or more, they can be mixed with arbitrary proportion, not interfered with most
The performance of whole fracturing fluid.
Wherein, gel breaker includes one or more of combinations in potassium peroxydisulfate, sodium peroxydisulfate and ammonium persulfate etc..If broken
Jelly include the material in it is two or more, they can be mixed with arbitrary proportion, not interfere with the performance of final fracturing fluid.
Wherein, water-soluble fibre include polypropylene fibre, polyethylene fibre, polyacrylonitrile fibre, vinal and
One or more of combinations in polyester fiber etc..If water-soluble fibre include the material in it is two or more, they can
Mixed with arbitrary proportion, do not interfere with the performance of final fracturing fluid.Water-soluble fibre can reach in the fracturing fluid of the present invention
Improve the effect of fracturing fluid prop-carrying capacity.
Wherein, on the basis of the gross weight of composite synergist, the raw material composition of the composite synergist includes：Cationic surface
Activating agent 10-20%, nonionic surfactant 5-10%, long chain alkylammonium salts 10-30%, villaumite 20-40%, low molecule
The alcohol 20-40% and water surplus of amount.
Wherein, cationic surfactant includes cetylpyridinium chloride and/or chlorination octadecylpyridinium etc..If positive
Ionic surface active agent includes two kinds in the material, then they can be mixed with arbitrary proportion, not interfere with final fracturing fluid
Performance.
The nanometer Glucomannan of this programme manufacture, uses it for manufacturing fracturing fluid, this fracturing fluid disclosure satisfy that well temperature 170 is taken the photograph
Fracture in oil and water wells construction requirement within family name's degree.Because KGM fracturing fluids can use low in 80 degrees Celsius of pressing crack constructions of well temperature
Warm crosslinking agent replaces high-temperature cross-linking agent, and its cost is lower than guanidine gum fracturing fluid, will so greatly save cost.
Tested by substantial amounts of indoor test and site operation, KGM is in petroleum industry every field using quite varied.
Konjac glucomannan is better than them compared with guanidine glue, the technical performance of sesbania, and price is also more relatively cheap than them.Thus may be used
See that prospects of the KGM in petroleum industry field is considerable.Although the utilizations of KGM in the oil industry are more and more extensive.
Protection scope of the present invention includes but is not limited to embodiment of above, and protection scope of the present invention is with claims
It is defined, any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within the present invention's
Protection domain.
Claims (3)
1. a kind of method for producing nanometer Glucomannan, it is characterised in that：Including step one, by Glucomannan material in pulverization cylinder
（1）Interior pulverizing processing 15-90 minutes, stirring rod（13）Velocity of rotation be 500-4000 revs/min；Step 2, starts discharging and passes
Send band（15）, by paddle（131）Rotate the material brought up and be delivered to aggregate bin（31）It is interior；Step 3, starts pump（3）Will collection
Hopper（31）Interior material passes through the first discharge nozzle（321）It is delivered to airslide disintegrating mill（4）, and pass through the second discharge nozzle
（322）It is delivered to the first high-pressure pump；Step 4, starts the first high-pressure pump, material is passed through into the first air jet pipe（5）Spray into air-flow powder
Broken machine（4）It is interior and from the first discharge nozzle（321）The material of output collides, and then stops the first high-pressure pump；Step 5, starts the
Two high-pressure pumps, the second air jet pipe is passed through by material（6）Spray into airslide disintegrating mill（4）Interior and internal material collides, Ran Houting
Only the second high-pressure pump；Step 6, starts the 3rd high-pressure pump, material is passed through into the 3rd air jet pipe（42）Spray into airslide disintegrating mill（4）
Interior and internal material collides, and then stops the 3rd high-pressure pump；Step 7, repeat step three to six, repetition time 10-70 point
Clock, while starting supersonic generator（7）, the frequency of ultrasonic wave is 20k-50kHz；Step 8, material transfer portion will be from discharging
Pipe（41）The material transportation of collection is to finished bin, and the material in finished bin is a nanometer Glucomannan.
2. a kind of nanometer Glucomannan of the method production described in utilization claim 1, it is characterised in that：The nanometer Portugal is sweet poly-
The particle diameter of sugar is 200-400nm, and molecular weight distribution is 100,000-20 ten thousand Da.
3. a kind of nanometer Glucomannan described in claim 2 is in the application of petroleum industry, it is characterised in that sweet poly- in nanometer Portugal
Biological enzyme formulation formation diverting agent is added in sugar, viscosity properties are improved, temperature resistance shear resistant：90 degrees Celsius, 170s-1Shearing
60min (wherein heating shearing 20min, 90 degrees Celsius of constant temperature 40min), viscosity is 2300-3100mPaS；Temperature stability：
90 degrees Celsius of constant temperature 60min, in 170s-1Under viscosity be 1800-2100mPaS.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270426A (en) * | 2019-06-26 | 2019-09-24 | 厦门一泰消防科技开发有限公司 | Extinguishing chemical and preparation method thereof based on nanometer pulverization technology |
| CN110905466A (en) * | 2019-11-20 | 2020-03-24 | 浙江工业大学 | Method for increasing yield and improving recovery ratio of biological nano-emulsion |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735791A (en) * | 2009-11-11 | 2010-06-16 | 天津大学 | Konjac glucomannan water-base fracturing fluid as well as preparation method and gel breaking method thereof |
| WO2013051146A1 (en) * | 2011-10-07 | 2013-04-11 | 株式会社 荻野商店 | Method for producing depolymerized konjak glucomannan and depolymerized konjak glucomannan obtained thereby |
| CN103102430A (en) * | 2013-01-22 | 2013-05-15 | 广州城市职业学院 | Method for synergistically preparing konjac glucomannan with medium-polymerization degree |
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2017
- 2017-05-17 CN CN201710346363.4A patent/CN107163156B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735791A (en) * | 2009-11-11 | 2010-06-16 | 天津大学 | Konjac glucomannan water-base fracturing fluid as well as preparation method and gel breaking method thereof |
| WO2013051146A1 (en) * | 2011-10-07 | 2013-04-11 | 株式会社 荻野商店 | Method for producing depolymerized konjak glucomannan and depolymerized konjak glucomannan obtained thereby |
| CN103102430A (en) * | 2013-01-22 | 2013-05-15 | 广州城市职业学院 | Method for synergistically preparing konjac glucomannan with medium-polymerization degree |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270426A (en) * | 2019-06-26 | 2019-09-24 | 厦门一泰消防科技开发有限公司 | Extinguishing chemical and preparation method thereof based on nanometer pulverization technology |
| CN110905466A (en) * | 2019-11-20 | 2020-03-24 | 浙江工业大学 | Method for increasing yield and improving recovery ratio of biological nano-emulsion |
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