CN109233794A - One kind is from suspension riverfrac treatment proppant production method - Google Patents
One kind is from suspension riverfrac treatment proppant production method Download PDFInfo
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- CN109233794A CN109233794A CN201811161860.8A CN201811161860A CN109233794A CN 109233794 A CN109233794 A CN 109233794A CN 201811161860 A CN201811161860 A CN 201811161860A CN 109233794 A CN109233794 A CN 109233794A
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- suspension
- resin
- riverfrac treatment
- production method
- proppant
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
- C09K8/805—Coated proppants
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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
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
Abstract
The invention belongs to the compositions fields for reinforcing rupturing, it specifically discloses a kind of from suspension riverfrac treatment proppant production method, from the surface of suspension riverfrac treatment proppant, there are the protuberances that diameter is 100-500nm, and every square millimeter of protuberance quantity is 4 × 107It is a or so；The preparation from suspension riverfrac treatment proppant is specifically includes the following steps: (1) prepares following raw material: aggregate, resin, curing agent, catalyst and amines additives；(2) resin and catalyst are added after aggregate being heated to 80-90 DEG C, is mixed；(3) 70-80 DEG C is dropped to temperature, amines additives is added, are stirred；(4) 65-75 DEG C is dropped to temperature, curing agent is added, be mixed；Temperature drops to 40-50 DEG C, takes the dish out of the pot, and is prepared from suspension riverfrac treatment proppant.The fracturing propping agents suspension being prepared using the method for the present invention is good, is easy to be carried into well.
Description
Technical field
The invention belongs to the compositions fields for reinforcing rupturing, more particularly to one kind to support from suspension riverfrac treatment
Agent preparation method.
Background technique
Proppant, which refers to, brings crack into fracturing fluid, after pressure is released to support the liquid adjuvants in oil field crack, energy
Enough provide to crack supports and guarantees that its is unimpeded, flows into liquid in drilling by crack, prevents from causing hole oily due to crack
The collapsing and leakage of field drilling well.
Ideal fracturing propping agent for oil gas well requires have high carrying capacity and high sand ratio, it is therefore desirable to alap
Density and intensity as high as possible.The fracturing propping agents that conventional method is prepared have quartz sand and haydite and their overlay film
Product, outer film coating are solidified at high temperature with phenolic aldehyde or epoxy resin, the amount of curing agent generally in the 5-50% of amount of resin,
Coated temperature is at 230 degree or so, and traditional fracturing propping agents intensity is big, but density is also high, and suspension is poor, is easy precipitating,
It is not easy to be carried into well.The proppant product of existing method preparation is gone back other than coating epoxy resin, phenolic resin film
There is coating urethane resin film, polyurethane resin is a great system, the raw material selected by strict control, raw material
Dosage, condition of reaction etc. can make polyurethane resin have entirely different substance physical property, the existing poly- ammonia for being used to support agent
Ester resin is the polyurethane resin with high rigidity substance physical property, it is ensured that resin film has high-caliber hardness and good resistance to compression
Fragility finally makes proppant have good resistant to breakage ability.But the proppant of the existing urethane resin film of coating produces
Product are still only to meet intensity, hardness requirement, not can solve suspension it is poor, be easy precipitating the problem of.
In order to more effectively make fracturing propping agents reach the target position of well, need to prepare carrying liquid during pressure break.
Carrying liquid is to add water soluble polymer and other additive using water as main carriers to increase the viscosity for carrying liquid,
The frictional resistance for carrying liquid is reduced simultaneously.Fracturing propping agents and carrying liquid mixing in the construction process, in highly viscous carrying liquid,
Fracturing propping agents suspend wherein, thus can pump farther.But it carries macromolecule frozen glue material used in liquid and exists
It is at high cost, serious to reservoir damage, cause serious pollution to the environment, complicated construction technique the disadvantages of.
Also occur some proppants that can be suspended certainly in water, the existing proppant master that can be suspended certainly in water at present
There are two class technologies, first is that in aggregate quartz sand or haydite surface coating layer of material, this material is mainly some water-soluble
Property high molecular material, such as polyacrylamide, carboxymethyl cellulose, polyacrylic acid, guar gum, natural plant gum.These materials meet water
It can expand rapidly, and the viscosity that can dissolve into increase water in water achievees the purpose that suspension.This technology from suspended prop not
There is the technology for fundamentally changing suspension, thickener overlay film is not only solved environmental issue on aggregate, without real
Realization reduce cost, increase production and improve productivity.Another technology is to change the apparent density of aggregate, makes the haydite of extremely-low density, or
Resin beads.Such product is able to achieve really half to suspend in water, reduces the rate of settling of proppant in water, but due to wanting
Apparent density is greatly lowered, production cost greatly increases, and the performance of proppant, such as broken, sour molten, water conservancy diversion performance meeting
It is substantially reduced.And the production efficiency of resin beads is low, it is at high cost the defects of, also limit its popularization and use.
Summary of the invention
The purpose of the present invention is to provide one kind from suspension riverfrac treatment proppant production method, to solve conventional method system
Standby obtained fracturing propping agents density is high, suspension is poor, it is not easy to be carried into the problems in well.
In order to achieve the above object, base case of the invention are as follows: it is a kind of from suspension riverfrac treatment proppant production method,
From the surface of suspension riverfrac treatment proppant, there are the protuberances that diameter is 100-500nm, and every square millimeter of protuberance quantity is 4
×107It is a or so；The preparation from suspension riverfrac treatment proppant specifically includes the following steps:
(1) prepare following raw material: aggregate, resin, curing agent, catalyst and amines additives；
(2) resin and catalyst are added after aggregate being heated to 80-90 DEG C, is mixed；
(3) 70-80 DEG C is dropped to temperature, amines additives is added, are stirred；
(4) 65-75 DEG C is dropped to temperature, curing agent is added, be mixed；Temperature drops to 40-50 DEG C, takes the dish out of the pot, and is prepared into
To from suspension riverfrac treatment proppant.
The beneficial effect of this base case is:
1, there are diameters for the riverfrac treatment proppant surface for using this method to be prepared for the protuberance of 100-500nm, and
Every square millimeter of protuberance quantity is 4 × 107It is a or so, it is found by the observation repeatedly and test of applicant, when proppant
Surface generate diameter 100-500nm protuberance and every square millimeter of protuberance quantity 4 × 107When a or so, proppant energy
It suspends in clear water, and the effect to suspend is preferable.Proppant can suspend in clear water, in addition to the quantity with protuberance has
Outside the Pass, also related with the size of protuberance, the size of protuberance cannot be excessive, and otherwise protuberance is easy to happen rupture, cannot play support
The effect of proppant.It is added to amines additives in the present patent application, preparation is during the suspension riverfrac treatment proppant, amine
Class additive helps to generate protuberance in proppant surface.Every square millimeter of proppant surface 4 × 107A or so protuberance is gathered in
When together, bubble layer is formd, is greatly lowered the relative density of proppant in water, in this way so as to make proppant in water
It is middle to suspend.
2, when proppant moves in water, proppant surface 4 × 107A or so protuberance can reduce proppant and sink in water
Reduction of speed rate；Part is settled down to the proppant of water bottom accumulation because its surface has more protuberance to reduce proppant particles accumulation
The degree of packing of layer, intergranular water body amount is more compared with conventional particle stack, even and if then when water body has the fluidity of very little
Also the separation of proppant congeries and movement can be more easily pushed, realizes that proppant preferably suspends in water.
3, the proppant of the present patent application can suspend in water, therefore directly achieve that height takes sand energy using clear water
Power, without changing the density of water.During exploiting oil gas, traditional fracturing propping agents are replaced using riverfrac treatment proppant,
Realize zero addition of load fluid thickener in fracturing work, so save conventional pressure break with liquid process and equipment.Meanwhile it thickening
The removal of agent also reduces injury and pressure break cost of the pressure break to reservoir.
4, since there are 4 × 10 on the fracturing propping agents surface of the present patent application7A protuberance, construction fracturing fluid not only can be used
Recycling can be recycled after also water flooding and multi-purpose station sewage, fracturing fluid can be used instead to arrange in clear water.Saline Water is more advantageous to this
The use of product reduces fracturing fluid cost.
5, proppant is mixed into water, proppant can be made to suspend or partly suspend in water, proppant enters in rock
Gap after proppant can be made to dispersing, to ensure that proppant has preferable support effect with water flowing.
6, it is proved by testing application effect in 40 mouthfuls of wells of north America region and domestic 6 mouthfuls of wells, oil well output is than passing after pressure break
System fracturing effect significantly improves, and can effectively slow down production declines rate.
Further, the curing agent is isocyanates.Select isocyanates as curing agent, resin is heated cured
Effect is preferable.
Further, the amines additives are aminated compounds.
Further, the resin is polyalcohols resin；The equivalent of polyalcohols resin hydroxyl is 60-300, curing agent
Mass fraction is the 40-80% of polyalcohols resin quality number.Applicant has found in long-term test, polyalcohols resin
It controls with the dosage of Isocyanates curing agent in above range, can generate and the entirely different performance of current material performance.It is more
First alcohol resinoid can be reacted with isocyanates generates polyurethane resin, passes through the dosage of strict control curing agent in we's application
So that isocyanate curing agent still has residue, remaining isocyanates after generating polyurethane resin with polyalcohols resin reaction
It is reacted with aminated compounds, during this, the gases such as nitrogen, nitric oxide, carbon monoxide can be generated, these gases are not also
The surface for the urethane resin film being fully cured can generate a large amount of protuberance, swell quantity at every square millimeter 4 × 107It is a with
On, these protuberances facilitate proppant and suspend.Simultaneously because the strict control dosage of raw material, the size control of these protuberances
System in suitable range, it is not too big and formed wear stomata.Isocyanates there remains part after reacting with aminated compounds
Isocyanates puts into proppant in water, and when proppant and water contact, the isocyanates on surface can react rapidly release with water
Bulk gas small molecule out, these gas molecules or be enclosed in coating layer expand, and coating layer stage is pushed to thicken increase
The equivalent diameters of proppant particles bodies, or be attached to the extension of proppant surface stage or be gathered in proppant coating layer and water
The gas blanket of one layer of package proppant particles body is formed on the interface of body contact, this gas blanket is formed between proppant particles body
Stage is connected to and the result closed causes simple grain proppant to form more loose cotton wadding in water body to gather shape, thus greatly
The relative density of proppant in water is reduced greatly, the suspendability of proppant can be made more preferably.
Further, in step (1) raw material mass fraction are as follows: the mass fraction of resin be aggregate quality number 0.5-
3%, the mass fraction of catalyst is the 0.1-1% of resin quality number, and the mass fraction of amines additives is resin quality part
Several 10-20%.Applicant is by repeatedly the study found that the proppant made of the raw material of above-mentioned mass fraction, preparation
Obtained proppant suspension effect is more preferable.The dosage of strict control amines additives, in addition to ensuring that amines additives and isocyanic acid
Amines additives react completely when ester curing agent reacts and isocyanate curing agent controls nitrogen in reaction process there are also outside residue
The output of the gases such as gas, carbon monoxide, it is ensured that the protuberance of fixed quantity can be formed in proppant surface, and guarantee the straight of protuberance
Diameter is 100-500nm.
Further, the mass fraction of resin is the 1-2.5% of aggregate quality number, and the mass fraction of curing agent is polyalcohol
The 50-70% of resinoid mass fraction, the mass fraction of catalyst are the 0.2-0.6% of resin quality number, amines additives
Mass fraction be resin quality number 12-16%.Applicant by repeatedly the study found that using above-mentioned mass fraction original
Material makes proppant, and the proppant suspension effect and other performances being prepared are more preferable.
Further, 100 parts of aggregate, 2 parts of resin, 1 part of curing agent, 0.01 part of catalyst, 0.3 part of amines additives.Application
People it is discovered by experiment that using above-mentioned mass fraction raw material make proppant, the proppant suspension effect being prepared with
And other performances are more preferable.
Further, resin and catalyst are added after aggregate being heated to 85 DEG C in step (2), is mixed；(3) to temperature
76 DEG C are dropped to, amines additives are added, are stirred；(4) 68 DEG C are dropped to temperature, curing agent is added, be mixed；Temperature drop
It to 46 DEG C, takes the dish out of the pot, is prepared from suspension riverfrac treatment proppant.
Applicant is by repeatedly the study found that in preparation process within the above range by state modulator, the branch being prepared
It supports agent suspension effect and other comprehensive performances is more preferable.
Further, the aminated compounds is diethylenetriamine, triethylamine, ethamine, triethylene tetramine, one in ethylenediamine
Kind is several.Applicant has found by test of many times, selects above-mentioned raw material as additive, proppant can be made to generate protuberance
Effect it is more preferable.
Further, the curing agent specifically selects toluene di-isocyanate(TDI), methylenediphenyl diisocyanates, different Fo Er
One of ketone diisocyanate, methyl diphenylene diisocyanate are several.Applicant has found by test of many times, selects
For above-mentioned raw material as curing agent, resin cured effect of being heated is good.
Further, the catalyst is the organo-metallic compound of alkyls tin and/or the organometallic of alkyl ekalead
Close one or more of object.Alkyls tin, alkyl ekalead organo-metallic compound as catalyst, be catalyzed the effect of reaction
Preferably.
Further, the organo-metallic compound of alkyls tin specifically selects dibutyl tin dilaurate, tributyl tin, alkyl
The organo-metallic compound of ekalead specifically selects lead tetraethide, isooctyl acid lead.Applicant has found by test of many times, selects above-mentioned
Raw material as catalyst, the effect for being catalyzed reaction is preferable.
Further, polyalcohols resin selects one of polymer such as ethyl alcohol, ethylene glycol, propylene glycol, glycerine, propyl alcohol
Or it is several.Applicants have found that selecting above-mentioned raw material as resin, it is more advantageous to and forms size on the surface of proppant
Qualified protuberance.
Further, the aggregate is quartz sand or haydite.Quartz sand is from a wealth of sources, low in cost, while intensity is opposite
It is higher and density is lower, it is easy to pump, quartz sand can preferably meet the requirement as aggregate.Haydite density is low, and sphericity is good,
Corrosion-resistant, high temperature resistant is high pressure resistant, and the fracturing propping agents comprehensive performance for using haydite to be prepared as aggregate is preferable.
Detailed description of the invention
Fig. 1 is the electron-microscope scanning figure from suspension riverfrac treatment proppant that embodiment 1 is prepared.
Specific embodiment
Raw material selection is illustrated below, and the present invention is described in further detail by specific embodiment:
Curing agent in the present embodiment is isocyanates, and it is different that toluene di-isocyanate(TDI), methylenediphenyl two can be selected
One of cyanate, isophorone diisocyanate, methyl diphenylene diisocyanate are several.
Amines additives in the present embodiment are aminated compounds, and diethylenetriamine, triethylamine, ethamine, three second can be selected
One of alkene tetramine, ethylenediamine are several.
Catalyst in the present embodiment is the organo-metallic compound of alkyls tin and/or the organometallic of alkyl ekalead
One or more of object is closed, the organo-metallic compound of alkyls tin specifically selects dibutyl tin dilaurate, tributyl tin,
The organo-metallic compound of alkyl ekalead specifically selects lead tetraethide, isooctyl acid lead.
Resin in the present embodiment is polyalcohols resin, and ethyl alcohol, ethylene glycol, propylene glycol, glycerine, propyl alcohol etc. can be selected
One of polymer is several.
Embodiment 1
One kind is from suspension riverfrac treatment proppant production method, comprising the following steps:
(1) prepare the raw material of following mass fraction: 100 parts of aggregate, 2 parts of resin, 1 part of curing agent, 0.01 part of catalyst, amine
0.3 part of class additive.Wherein aggregate selects 20/40 quartz sand, and resin selects glycerine polymer, and curing agent selects toluene two different
Cyanate, catalyst select dibutyl tin dilaurate, and amines additives select diethylenetriamine.
(2) resin and catalyst are added after aggregate being heated to 88 DEG C, is mixed；
(3) 78 DEG C are dropped to temperature, amines additives is added, are stirred；
(4) 72 DEG C are dropped to temperature, curing agent is added, be mixed；Temperature drops to 46 DEG C, takes the dish out of the pot, and is prepared from outstanding
Floating riverfrac treatment proppant.
Using this method be prepared from suspension riverfrac treatment proppant surface there are diameter be 100-500nm it is grand
It rises, and every square millimeter of protuberance quantity is 4.3 × 107It is a or so.
Embodiment 2
One kind is from suspension riverfrac treatment proppant production method, comprising the following steps:
(1) prepare the raw material of following mass fraction: 100 parts of aggregate, 2.5 parts of resin, 1 part of curing agent, catalyst 0.015
Part, 0.4 part of amines additives.Wherein aggregate selects 30/50 quartz sand, and resin selects glycol polymers, and curing agent is selected different
Isophorone diisocyanate, catalyst select tributyl tin, and amines additives select ethylenediamine.
(2) resin and catalyst are added after aggregate being heated to 82 DEG C, is mixed；
(3) 72 DEG C are dropped to temperature, amines additives is added, are stirred；
(4) 67 DEG C are dropped to temperature, curing agent is added, be mixed；Temperature drops to 45 DEG C, takes the dish out of the pot, and is prepared from outstanding
Floating riverfrac treatment proppant.
Using this method be prepared from suspension riverfrac treatment proppant surface there are diameter be 100-500nm it is grand
It rises, and every square millimeter of protuberance quantity is 4.7 × 107It is a or so.
Embodiment 3
One kind is from suspension riverfrac treatment proppant production method, comprising the following steps:
(1) prepare the raw material of following mass fraction: 100 parts of aggregate, 3 parts of resin, 2 parts of curing agent, 0.02 part of catalyst, amine
0.4 part of class additive.Wherein aggregate selects 40/70 quartz sand, and resin selects alcohol polymer, and curing agent selects diphenyl methane
Diisocyanate, catalyst select isooctyl acid lead, and amines additives select diethylenetriamine.
(2) resin and catalyst are added after aggregate being heated to 82 DEG C, is mixed；
(3) 72 DEG C are dropped to temperature, amines additives is added, are stirred；
(4) 66 DEG C are dropped to temperature, curing agent is added, be mixed；Temperature drops to 48 DEG C, takes the dish out of the pot, and is prepared from outstanding
Floating riverfrac treatment proppant.
Using this method be prepared from suspension riverfrac treatment proppant surface there are diameter be 100-500nm it is grand
It rises, and every square millimeter of protuberance quantity is 4.8 × 107It is a or so.
Embodiment 4
One kind is from suspension riverfrac treatment proppant production method, comprising the following steps:
(1) prepare the raw material of following mass fraction: 100 parts of aggregate, 2 parts of resin, 1.2 parts of curing agent, catalyst 0.012
Part, 0.3 part of amines additives.Wherein aggregate selects 20/40 haydite, and resin selects alcohol polymer, and curing agent selects diphenyl
Methane diisocyanate, catalyst select isooctyl acid lead, and amines additives select 0.15 part of diethylenetriamine and 0.15 part of second two
Amine.
(2) resin and catalyst are added after aggregate being heated to 84 DEG C, is mixed；
(3) 75 DEG C are dropped to temperature, amines additives is added, are stirred；
(4) 70 DEG C are dropped to temperature, curing agent is added, be mixed；Temperature drops to 45 DEG C, takes the dish out of the pot, and is prepared from outstanding
Floating riverfrac treatment proppant.
Using this method be prepared from suspension riverfrac treatment proppant surface there are diameter be 100-500nm it is grand
It rises, and every square millimeter of protuberance quantity is 4.6 × 107It is a or so.
Embodiment 5
One kind is from suspension riverfrac treatment proppant production method, comprising the following steps:
(1) prepare the raw material of following mass fraction: 100 parts of aggregate, 2.5 parts of resin, 1.2 parts of curing agent, catalyst 0.015
Part, 0.3 part of amines additives.Wherein aggregate selects 30/50 haydite, and resin selects ethylene glycol polymer, and curing agent selects 0.6 part
Methyl diphenylene diisocyanate and 0.6 part of toluene di-isocyanate(TDI), catalyst select lead tetraethide, and amines additives are selected
0.15 part of diethylenetriamine and 0.15 part of ethamine.
(2) resin and catalyst are added after aggregate being heated to 88 DEG C, is mixed；
(3) 78 DEG C are dropped to temperature, amines additives is added, are stirred；
(4) 72 DEG C are dropped to temperature, curing agent is added, be mixed；Temperature drops to 48 DEG C, takes the dish out of the pot, and is prepared from outstanding
Floating riverfrac treatment proppant.
Using this method be prepared from suspension riverfrac treatment proppant surface there are diameter be 100-500nm it is grand
It rises, and every square millimeter of protuberance quantity is 4.8 × 107It is a or so.
Embodiment 6
One kind is from suspension riverfrac treatment proppant production method, comprising the following steps:
(1) prepare the raw material of following mass fraction: 100 parts of aggregate, 3 parts of resin, 2 parts of curing agent, 0.025 part of catalyst,
0.5 part of amines additives.Wherein aggregate selects 40/70 haydite, and resin selects glycerine polymer, and curing agent selects toluene two different
Cyanate, catalyst select lead tetraethide, and amines additives select diethylenetriamine.
(2) resin and catalyst are added after aggregate being heated to 84 DEG C, is mixed；
(3) 76 DEG C are dropped to temperature, amines additives is added, are stirred；
(4) 68 DEG C are dropped to temperature, curing agent is added, be mixed；Temperature drops to 48 DEG C, takes the dish out of the pot, and is prepared from outstanding
Floating riverfrac treatment proppant.
Using this method be prepared from suspension riverfrac treatment proppant surface there are diameter be 100-500nm it is grand
It rises, and every square millimeter of protuberance quantity is 4.9 × 107It is a or so.
Comparative example 1
Comparative example 1 the difference from embodiment 1 is that: 0.01 part of amines additives (for the 0.5% of resin quality number).?
In this comparative example, from the surface of suspension riverfrac treatment proppant there are the protuberance that diameter is 100-500nm, and every square millimeter
Quantity is swelled 1.1 × 105It is a or so.
Comparative example 2
Comparative example 2 the difference from embodiment 1 is that: be added without amines additives.In this comparative example, from suspension clear water pressure
The surface for splitting proppant there's almost no protuberance.
Comparative example 3
Comparative example 3 the difference from embodiment 1 is that: 0.5 part of curing agent (for the 25% of polyalcohols resin quality number).
In this comparative example, from the surface of suspension riverfrac treatment proppant there are the protuberance that diameter is 100-500nm, and every square millimeter
Protuberance quantity 3.9 × 103It is a or so.
Comparative example 4
Comparative example 4 the difference from embodiment 1 is that: 0.2 part of curing agent (for the 10% of polyalcohols resin quality number).
In this comparative example, protuberance there's almost no from the surface of suspension riverfrac treatment proppant.
Comparative example 5
Comparative example 5 the difference from embodiment 1 is that: 2.5 parts of curing agent is (for polyalcohols resin quality number
125%).In this comparative example, from the surface of suspension riverfrac treatment proppant, there are the protuberances that diameter is 500-1000nm, and often
Effective protuberance (referring to the protuberance not ruptured) quantity of square millimeter is 2.8 × 104It is a or so.
It is tested from suspension riverfrac treatment proppant what embodiment 1-6, comparative example 1-5 were prepared, the sheet measured
The performance indicator of proppant is as follows:
1. suspension time
Suspension time refers to that the maximum duration that can freely suspend in clear water, experimental data are as shown in table 1:
Table 1
Come as can be seen from Table 1, it is small that the suspension time for the riverfrac treatment proppant that embodiment 1-6 is prepared is both greater than 4
When, the pressure break requirement of deep-well can be fully met.In comparative example 1-5, the dosage that curing agent, amines additives add does not meet rule
Fixed, the protuberance discrepancy of quantity that proppant generates, which closes, to be required, therefore suspension time is extremely short or even does not suspend.Analyzing comparative example 1-5 can
Know, the mass fraction of amines additives is necessary for the 1-20% of resin quality number, the mass parts of curing agent in the present invention program
Number is necessary for the 40-80% of resin quality number, and curing agent, amines additives dosage are very few cannot to generate the protuberance for needing quantity
Or protuberance cannot be generated, and hardener dose is excessive, and the volume of protuberance can be made excessive, leads to swell being easy to occur to break
It splits, finally can proppant be made not have suspendability.
2. suspension ratio
It suspends than being to evaluate proppant suspension amount in upper layer accounts for the percentage of total proppant in water, our uses in test
Sand: the case where water is 4:1 is evaluated.Experimental method is to measure 200ml water in the wide-mouth bottle of 300ml with graduated cylinder and pour into extensively
In mouth bottle, precise 50g proppant is poured into the wide-mouth bottle for having filled water, is closed the lid, up and down firmly shake 30 times, and static 10
After minute, firmly shakes 30 times up and down after the same method, the sand of the suspension on upper layer is filtered out after static with filter paper, after drying
The weight for weighing the sand filtered out is m, suspension amount X=m/50*100%.It is as shown in table 2:
Table 2
It can be seen that come from the data in table 2, when static, the riverfrac treatment that embodiment 1-6 is prepared is supported
Agent has a certain amount of proppant that left floating on upper layer；And in comparative example 1-4, due to proppant generate protuberance quantity not
It meets the requirements, when static, proppant that upper layer not left floating.
3. other conventional indexs:
Other conventional indexs are as shown in table 3:
Table 3
" certainly outstanding composite index " is the overall target for evaluating proppant suspendability in clear water in upper table, by mattress height
Ratio codetermines with suspending, and engineering significance is practical bulk density of the proppant in clear water, and value is smaller to be equivalent in water
In relative density with regard to smaller, then the suspension of proppant is better, suspension time is longer.
(b is suspension ratio, h is mattress height)
It can see from 3 data of table, the items from suspension riverfrac treatment proppant that the present patent application scheme is prepared
Index meets the requirement of proppant, can effectively use in practice.
Claims (14)
1. a kind of from suspension riverfrac treatment proppant production method, it is characterised in that: from the surface of suspension riverfrac treatment proppant
There are the protuberances that diameter is 100-500nm, and every square millimeter of protuberance quantity is 4 × 107It is a or so；It is described from suspension clear water
The preparations of fracturing propping agents specifically includes the following steps:
(1) prepare following raw material: aggregate, resin, curing agent, catalyst and amines additives；
(2) resin and catalyst are added after aggregate being heated to 80-90 DEG C, is mixed；
(3) 70-80 DEG C is dropped to temperature, amines additives is added, are stirred；
(4) 65-75 DEG C is dropped to temperature, curing agent is added, be mixed；Temperature drops to 40-50 DEG C, takes the dish out of the pot, and is prepared certainly
Suspension riverfrac treatment proppant.
2. according to claim 1 a kind of from suspension riverfrac treatment proppant production method, it is characterised in that: the solidification
Agent is isocyanates.
3. according to claim 2 a kind of from suspension riverfrac treatment proppant production method, it is characterised in that: the amine
Additive is aminated compounds.
4. according to claim 3 a kind of from suspension riverfrac treatment proppant production method, it is characterised in that: the resin
For polyalcohols resin；The equivalent of polyalcohols resin hydroxyl is 60-300, and the mass fraction of curing agent is polyalcohols resin
The 40-80% of mass fraction.
5. according to claim 4 a kind of from suspension riverfrac treatment proppant production method, it is characterised in that: the matter of resin
The 0.5-3% that number is aggregate quality number is measured, the mass fraction of catalyst is the 0.1-1% of resin quality number, and amine adds
Add the mass fraction of agent for the 1-20% of resin quality number.
6. according to claim 5 a kind of from suspension riverfrac treatment proppant production method, it is characterised in that: the matter of resin
The 1-2.5% that number is aggregate quality number is measured, the mass fraction of curing agent is the 50- of polyalcohols resin quality number
70%, the mass fraction of catalyst is the 0.2-0.6% of resin quality number, and the mass fraction of amines additives is resin quality
The 12-16% of number.
7. according to claim 6 a kind of from suspension riverfrac treatment proppant production method, it is characterised in that: aggregate 100
Part, 2 parts of resin, 1 part of curing agent, 0.01 part of catalyst, 0.3 part of amines additives.
8. according to claim 1-7 a kind of from suspension riverfrac treatment proppant production method, it is characterised in that:
Resin and catalyst are added after aggregate is heated to 85 DEG C in step (2), is mixed；(3) 76 DEG C are dropped to temperature, amine is added
Class additive, is stirred；(4) 68 DEG C are dropped to temperature, curing agent is added, be mixed；Temperature drops to 46 DEG C, takes the dish out of the pot, system
It is standby to obtain from suspension riverfrac treatment proppant.
9. described in any item a kind of from suspension riverfrac treatment proppant production method according to claim 3-7, it is characterised in that:
The amine aminated compounds is one of diethylenetriamine, triethylamine, ethamine, triethylene tetramine, ethylenediamine or several.
10. according to one kind described in claim 2-7 from suspension riverfrac treatment proppant production method, it is characterised in that: described
Curing agent specifically selects toluene di-isocyanate(TDI), methylenediphenyl diisocyanates, isophorone diisocyanate, diphenyl
One of methane diisocyanate is several.
11. one kind according to claim 1-7 is from suspension riverfrac treatment proppant production method, feature exists
In: the catalyst is one of organo-metallic compound and/or the organo-metallic compound of alkyl ekalead of alkyls tin
Or it is several.
12. according to claim 11 a kind of from suspension riverfrac treatment proppant production method, it is characterised in that: alkyls
The organo-metallic compound of tin specifically selects dibutyl tin dilaurate, tributyl tin, the organo-metallic compound of alkyl ekalead
It is specific to select lead tetraethide, isooctyl acid lead.
13. feature exists according to the described in any item one kind of claim 4-7 from suspension riverfrac treatment proppant production method
In: one of polymer such as polyalcohols resin selection ethyl alcohol, ethylene glycol, propylene glycol, glycerine, propyl alcohol are several.
14. one kind according to claim 1-7 is from suspension riverfrac treatment proppant production method, feature exists
In: the aggregate is quartz sand or haydite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161860.8A CN109233794A (en) | 2018-09-30 | 2018-09-30 | One kind is from suspension riverfrac treatment proppant production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811161860.8A CN109233794A (en) | 2018-09-30 | 2018-09-30 | One kind is from suspension riverfrac treatment proppant production method |
Publications (1)
| Publication Number | Publication Date |
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| CN109233794A true CN109233794A (en) | 2019-01-18 |
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ID=65055546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201811161860.8A Withdrawn CN109233794A (en) | 2018-09-30 | 2018-09-30 | One kind is from suspension riverfrac treatment proppant production method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248180A (en) * | 2021-04-12 | 2021-08-13 | 广西军泰建材有限公司 | Aggregate regulator for concrete and preparation method thereof |
| CN116064026A (en) * | 2023-04-03 | 2023-05-05 | 成都理工大学 | Direct-adding suspending agent for real-time modification of propping agent in fracturing process and application thereof |
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|---|---|---|---|---|
| CN104797681A (en) * | 2012-09-25 | 2015-07-22 | 优选技术有限责任公司 | Coated and cured proppants |
| CN106281299A (en) * | 2016-08-05 | 2017-01-04 | 重庆长江造型材料（集团）股份有限公司 | Low-density film-coated ceramisite proppant and preparation method thereof |
| US20170058190A1 (en) * | 2009-10-20 | 2017-03-02 | Self-Suspending Proppant Llc | Proppants for hydraulic fracturing technologies |
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2018
- 2018-09-30 CN CN201811161860.8A patent/CN109233794A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170058190A1 (en) * | 2009-10-20 | 2017-03-02 | Self-Suspending Proppant Llc | Proppants for hydraulic fracturing technologies |
| CN104797681A (en) * | 2012-09-25 | 2015-07-22 | 优选技术有限责任公司 | Coated and cured proppants |
| CN106281299A (en) * | 2016-08-05 | 2017-01-04 | 重庆长江造型材料（集团）股份有限公司 | Low-density film-coated ceramisite proppant and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113248180A (en) * | 2021-04-12 | 2021-08-13 | 广西军泰建材有限公司 | Aggregate regulator for concrete and preparation method thereof |
| CN116064026A (en) * | 2023-04-03 | 2023-05-05 | 成都理工大学 | Direct-adding suspending agent for real-time modification of propping agent in fracturing process and application thereof |
| CN116064026B (en) * | 2023-04-03 | 2023-06-09 | 成都理工大学 | Direct-adding suspending agent for real-time modification of propping agent in fracturing process and application thereof |
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Application publication date: 20190118 |