CN109401747A - A kind of riverfrac treatment proppant - Google Patents
A kind of riverfrac treatment proppant Download PDFInfo
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- CN109401747A CN109401747A CN201811161959.8A CN201811161959A CN109401747A CN 109401747 A CN109401747 A CN 109401747A CN 201811161959 A CN201811161959 A CN 201811161959A CN 109401747 A CN109401747 A CN 109401747A
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- China
- Prior art keywords
- proppant
- resin
- riverfrac treatment
- coating layer
- curing agent
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3225—Polyamines
- C08G18/3228—Polyamines acyclic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4829—Polyethers containing at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6681—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38
- C08G18/6685—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/32 or C08G18/3271 and/or polyamines of C08G18/38 with compounds of group C08G18/3225 or polyamines of C08G18/38
Abstract
The invention belongs to the compositions fields for reinforcing rupturing, specifically disclose a kind of riverfrac treatment proppant, and including aggregate and the coating layer being wrapped in outside aggregate, coating layer is obtained by resin, curing agent and catalyst preparation；The power spectrum test feature of coating layer is carbon and oxygen atom ratio in 1.5-7.5:1.The riverfrac treatment proppant of the present patent application is not only all satisfied requirement in indexs such as intensity, drag reduction efficiency, broken material, acid solubilities, moreover it is possible in water from suspending, be easy to be carried, no pollution to the environment.
Description
Technical field
The invention belongs to for reinforcing rupturing compositions field more particularly to a kind of riverfrac treatment proppant.
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.Traditional fracturing propping agents have quartz sand and haydite and their coated products, outer layer to cover
Film is solidified at high temperature with phenolic aldehyde or epoxy resin, and generally in the 5-50% of amount of resin, coated temperature exists the amount of curing agent
230 degree or so, 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 taken
It is brought into well.There are also coating urethane resin films other than coating epoxy resin, phenolic resin film for existing proppant product
, polyurethane resin is a great system, passes through the raw material of strict control selection, dosage, the condition of reaction of raw material etc.
It can make polyurethane resin that there is entirely different substance physical property, the existing polyurethane resin for being used to support agent is to have height hard
Spend the polyurethane resin of substance physical property, it is ensured that resin film has high-caliber hardness and good resistance to crushing, finally to support
Agent has good resistant to breakage ability.But the proppant product of the existing urethane resin film of coating is still only to meet by force
Degree, hardness requirement, not can solve suspension it is poor, be easy precipitate 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 a kind of riverfrac treatment proppants, and environmentally protective, production cost is relatively low, full
While foot tradition fracturing propping agents index, it can be easy to be carried in water from suspending.
In order to achieve the above object, base case of the invention are as follows: a kind of riverfrac treatment proppant, including aggregate and package
Coating layer outside aggregate, coating layer are obtained by resin, curing agent and catalyst preparation；The power spectrum test feature of coating layer is carbon
With oxygen atom ratio in 1.5-7.5:1.
The beneficial effect of this base case is:
1, by the observation repeatedly and test of applicant, when the power spectrum test feature of coating layer is that carbon and oxygen atom ratio exist
When 1.5-7.5:1, suspension of the proppant in clear water is than (the percentage of proppant upper layer suspension amount Zhan total proppant in water
Than) it is greater than 10%, proppant can suspend in clear water, and the effect to suspend is preferable.
2, 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,
Traditional fracturing fluid is replaced using clear water, realizes zero addition of load fluid thickener in fracturing work, and then save conventional pressure break
With liquid process and equipment.Meanwhile the removal of thickener also reduces injury and pressure break cost of the pressure break to reservoir.
3, using the proppant of the present patent application, fracturing fluid of constructing not only can be used clear water, water flooding and connection also can be used
Close station sewage, recycling can be recycled after instead arrange in fracturing fluid, and Saline Water is more advantageous to the use of the product, reduction fracturing fluid at
This.
4, the Applicable temperature range of proppant of the invention in pressing crack construction is 5 DEG C -145 DEG C, proppant Applicable temperature
Range is wide, and the stability in this temperature range is good, using effect is good.
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.
Further, the curing agent is isocyanates.Select isocyanates as curing agent, resin is heated cured
Effect is preferable.
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 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.Polyalcohols resin and isocyanates are under the action of catalyst
Will form polyurethane resin, we application in by the dosage of strict control curing agent make isocyanate curing agent with it is more
First alcohols resin reaction still has residue after generating polyurethane resin.After proppant enters in water, the isocyanates of proppant can be with
Water, which reacts rapidly, releases gas molecules, these gas molecules or be enclosed in coating layer expand, and pushes the coating layer stage
Property thicken and increase the equivalent diameter of proppant particles body, or be attached to the extension of proppant surface stage or be gathered in proppant
The gas blanket of one layer of package proppant particles body is formed on the interface that coating layer is contacted with water body, this gas blanket is in proppant
Formation stages are connected between plastochondria and the result closed causes simple grain proppant to form more loose cotton wadding in water body to gather
Shape is greatly lowered the relative density of proppant in water in this way, can make the suspendability of proppant more preferably.
Further, the mass fraction of resin is the 0.5-3% of aggregate quality number, and the mass fraction of catalyst is resinite
Measure the 0.1-1% of number.Catalyst in the range, is not only able to achieve resin and solidifies well, and is conducive to generate protuberance, this
Sample not only can increase the resistant to breakage ability of proppant, but also can increase suspension.
Further, the proppant is prepared by the raw material of following mass fraction: 100 parts of aggregate, 2 parts of resin, solidification
1.2 parts of agent, 0.015 part of catalyst.Applicant is by repeatedly the study found that the raw material using above-mentioned mass fraction make support
Agent, the proppant suspension effect being prepared and other better performances.
Further, coating layer further includes aminated compounds, and coating layer is by resin, curing agent, catalyst and aminated compounds
It is prepared.Resin reacts to form coating layer under the action of catalyst with curing agent, during this, in the work of aminated compounds
Under, the surface of coating layer can generate a large amount of protuberance, and a large amount of protuberances, which gather, is capable of forming bubble layer, and bubble layer can drop significantly
The relative density of low proppant in water is conducive to proppant and suspends in clear water, improves the suspension of proppant.
Further, the mass fraction of the aminated compounds is the 1-20% of resin quality number.Polyalcohols resin energy
The isocyanates for having some residual is reacted with isocyanates, remaining isocyanates is reacted with aminated compounds, this process
In, the gases such as nitrogen, nitric oxide, carbon monoxide can be generated, these gases are in not yet fully hardened urethane resin film
Surface can generate a large amount of protuberance.When proppant moves in water, the protuberance of proppant surface 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.Strict control
The amount that aminated compounds is added, it is ensured that generate quantitative gas in reaction process, guarantee that the protuberance size generated is controlled suitable
In the range of, it is not too big and formed wear stomata.Aminated compounds there remains the isocyanates of part after reacting with isocyanates,
After proppant is put into water, remaining isocyano can act on water and generate gas in proppant, and portion gas is closed in
In coating layer, coating layer is expanded, the suspendability of proppant can be made more preferably.
Further, curing agent specifically selects toluene di-isocyanate(TDI), methylenediphenyl diisocyanates, isophorone two
One of isocyanates, methyl diphenylene diisocyanate are several.Applicant has found by test of many times, selects above-mentioned
Raw material as curing agent, resin cured effect of being heated is good.
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 good.
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 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 aminated compounds, proppant can be made to generate
The effect of protuberance is more preferable.
Further, the aggregate selects quartz sand, haydite, Artificial Ceramic matter sand, organic synthesis sand or organo-mineral complexing
Material sand.The aggregate of proppant need to meet index in certain performances, and above-mentioned aggregate preferably meets use demand.
Detailed description of the invention
Fig. 1 is a kind of electron-microscope scanning figure for riverfrac treatment proppant that embodiment 4 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.
Diethylenetriamine, triethylamine, ethamine, triethylene tetramine, ethylenediamine can be selected in aminated compounds in the present embodiment
One of or it is 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
A kind of riverfrac treatment proppant, including aggregate and the coating layer being wrapped in outside aggregate, coating layer is by resin, curing agent
It is obtained with catalyst preparation；The specific mass fraction that above-mentioned raw materials use is as follows: 100 parts of aggregate, 2 parts of resin, curing agent 1.1
Part, 0.01 part of catalyst.Wherein aggregate selects 20/40 quartz sand, and resin selects glycerine polymer, and curing agent selects toluene two
Isocyanates, catalyst select dibutyl tin dilaurate.In the present embodiment, the power spectrum test feature of coating layer is that carbon and oxygen are former
Son is than being 5:1.
The riverfrac treatment proppant is prepared using following methods: after aggregate is heated to 90 DEG C, resin is added and urges
Agent is mixed；80 DEG C are dropped to temperature, curing agent is added, is mixed；Temperature drops to 50 DEG C, takes the dish out of the pot, and obtains clear water pressure
Split proppant.
Embodiment 2
A kind of riverfrac treatment proppant, including aggregate and the coating layer being wrapped in outside aggregate, coating layer is by resin, curing agent
It is obtained with catalyst preparation；The specific mass fraction that above-mentioned raw materials use is as follows: 100 parts of aggregate, 2.5 parts of resin, curing agent
1.63 parts, 0.015 part of catalyst.Wherein aggregate selects 30/50 quartz sand, and resin selects glycol polymers, and curing agent is selected
Isophorone diisocyanate, catalyst select tributyl tin.In the present embodiment, the power spectrum test feature of coating layer is carbon and oxygen
Atomic ratio is 6:1.
The riverfrac treatment proppant is prepared using following methods: after aggregate is heated to 100 DEG C, resin is added and urges
Agent is mixed；90 DEG C are dropped to temperature, curing agent is added, is mixed；Temperature drops to 60 DEG C, takes the dish out of the pot, and obtains clear water pressure
Split proppant.
Embodiment 3
A kind of riverfrac treatment proppant, including aggregate and the coating layer being wrapped in outside aggregate, coating layer is by resin, curing agent
It is obtained with catalyst preparation；The specific mass fraction that above-mentioned raw materials use is as follows: 100 parts of aggregate, 3 parts of resin, curing agent 2.3
Part, 0.02 part of catalyst.Wherein aggregate selects 40/70 quartz sand, and resin selects alcohol polymer, and curing agent selects diphenylmethyl
Alkane diisocyanate, catalyst select isooctyl acid lead.In the present embodiment, the power spectrum test feature of coating layer is carbon and oxygen atom ratio
For 7:1.
The riverfrac treatment proppant is prepared using following methods: after aggregate is heated to 110 DEG C, resin is added and urges
Agent is mixed；100 DEG C are dropped to temperature, curing agent is added, is mixed；Temperature drops to 70 DEG C, takes the dish out of the pot, and obtains clear water
Fracturing propping agents.
Embodiment 4
A kind of riverfrac treatment proppant, including aggregate and the coating layer being wrapped in outside aggregate, coating layer is by resin, solidification
Agent, catalyst and aminated compounds are prepared；The specific mass fraction that above-mentioned raw materials use is as follows: 100 parts of aggregate, resin
2.5 parts, 2 parts of curing agent, 0.02 part of catalyst, 0.3 part of aminated compounds.Wherein aggregate selects 40/70 quartz sand, and resin is selected
Glycol polymers, curing agent select isophorone diisocyanate, and catalyst selects tributyl tin, and aminated compounds selects second
Diamines.In the present embodiment, the power spectrum test feature of coating layer is carbon and oxygen atom ratio is 7:1.
The riverfrac treatment proppant is prepared using following methods: aggregate being heated to 95 DEG C, resin and catalysis is added
Agent is mixed；85 DEG C are dropped to temperature, aminated compounds is added, is stirred；75 DEG C are dropped to temperature, curing agent is added,
It is mixed；Temperature drops to 50 DEG C, takes the dish out of the pot, and obtains riverfrac treatment proppant.
Comparative example 1
Comparative example 1 the difference from embodiment 1 is that: in this comparative example curing agent be added amount be 0.6 part (for polyalcohols
The 30% of resin quality number).In the comparative example, the power spectrum test feature of coating layer is carbon and oxygen atom ratio is 8:1.
Comparative example 2
Comparative example 2 the difference from embodiment 1 is that: in this comparative example curing agent be added amount be 0.3 part (for polyalcohols
The 15% of resin quality number).In the comparative example, the power spectrum test feature of coating layer is carbon and oxygen atom ratio is 8.5:1.
Comparative example 3
Comparative example 3 the difference from embodiment 1 is that: in this comparative example curing agent be added amount be 2.5 parts (for polyalcohols
The 125% of resin quality number).In the comparative example, the power spectrum test feature of coating layer is carbon and oxygen atom ratio is 1:1.
Riverfrac treatment proppant in embodiment 1-4, comparative example 1-3 is tested, the performance of this proppant measured
Index is as shown in table 1:
Table 1
It illustrates:
1, suspension time refers to the maximum duration that proppant can freely suspend in water.
2, suspend than be evaluation proppant upper layer suspension amount Zhan total proppant in water percentage.
We use the mass ratio of proppant and water to evaluate for the case where 1:4 in test.Experimental method is in 300ml
Wide-mouth bottle in, with graduated cylinder measure 200ml water pour into wide-mouth bottle, precise 50g proppant pours into the wide-mouth bottle for having filled water
In, it closes the lid, firmly shakes 30 times up and down, it is static firmly to shake 30 times up and down after the same method after ten minutes, it is static
The proppant for filtering out upper layer suspension with filter paper afterwards, the quality that the proppant filtered out is weighed after drying is m (g), and b is compared in suspension
=m/50*100%.
3, mattress height is lower layer height of the 20g proppant in the 100ml graduated cylinder equipped with 100ml clear water.
Since laboratory can only do static suspension test, so the mattress height of lower layer is also evaluate suspendability one
Item important indicator.The amount of plastic wound packages 100ml water of 100ml is used in experiment, precise 20g proppant pours into the graduated cylinder for having filled water
In, tightly cover graduated cylinder mouth with the right hand, left hand is picked up graduated cylinder and is gently reversed 10 times up and down, it is static after ten minutes, according to same side
Method is reversed 10 times up and down, has vernier caliper to measure the bed height of lower layer support agent after static.
It 4, is to evaluate the overall target of proppant suspendability in clear water from outstanding composite index, by mattress height and suspension
Than codetermining, engineering significance is practical bulk density of the proppant in clear water, is worth the smaller phase being equivalent in water
To density with regard to smaller, then the suspension of proppant is better, suspension time is longer.
5, the test of apparent density, bulk density, percentage of damage and acid solubility is according to " SY/T 5108-2014 hydraulic fracturing
With gravel packing operations proppant performance test methods " it is tested.
Conclusion:
(1) come as can be seen from Table 1, the suspension ratio for the riverfrac treatment proppant that embodiment 1-4 is prepared is all larger than
10%, suspension time is both greater than 4 hours, and suspendability is good, can preferably meet the pressure break requirement of deep-well.
(2) it can be seen that come from the data in table 1, when static, the riverfrac treatment proppant in embodiment 1-4 exists
There is a certain amount of proppant that left floating on upper layer.
(3) in general, the roughing sand of different size, the mattress height of original pottery and their traditional overlay film proppant is all
< 30mm；And in embodiment 1-4, the mattress height of proppant all > 30mm, therefore in static state, riverfrac treatment support
Agent is that the state to suspend with a kind of half is deposited in liquid bottom in fact, once liquid flows, these proppants can suspend
Get up.
(4) as can be seen from Table 1, the riverfrac treatment proppant in embodiment 1-4 can meet or exceed existing pressure
The indices of proppant are split, use demand can be met.
(5) embodiment 1 is compared with comparative example 1-3 respectively, it was therefore concluded that: when the power spectrum test feature carbon of coating layer
With oxygen atom than when for 1.5-7.5:1 within the scope of this, the suspension ratio of proppant is not substantially reduced, the suspendability of proppant
Decline.Comparative example 1-3 is analyzed it is found that the mass fraction of curing agent is necessary for the 40- of resin quality number in the present invention program
80%, hardener dose is very few cannot to be generated the protuberance for needing quantity or cannot generate protuberance, and hardener dose is excessive then
Meeting leads to swell being easy to rupture, finally can proppant be made not have suspendability so that the volume of protuberance is excessive.
Claims (13)
1. a kind of riverfrac treatment proppant, it is characterised in that: including aggregate and the coating layer being wrapped in outside aggregate, coating layer is by setting
Rouge, curing agent and catalyst preparation obtain；The power spectrum test feature of coating layer is carbon and oxygen atom ratio in 1.5-7.5:1.
2. a kind of riverfrac treatment proppant according to claim 1, it is characterised in that: the curing agent is isocyanates
Class.
3. a kind of riverfrac treatment proppant according to claim 2, it is characterised in that: the catalyst is alkyls tin
One or more of organo-metallic compound and/or the organo-metallic compound of alkyl ekalead.
4. a kind of riverfrac treatment proppant according to claim 3, it is characterised in that: the resin is polyalcohols tree
Rouge；The equivalent of polyalcohols resin hydroxyl is 60-300, and the mass fraction of curing agent is the 40- of polyalcohols resin quality number
80%.
5. a kind of riverfrac treatment proppant according to claim 4, it is characterised in that: the mass fraction of resin is aggregate matter
The 0.5-3% of number is measured, the mass fraction of catalyst is the 0.1-1% of resin quality number.
6. a kind of riverfrac treatment proppant according to claim 5, it is characterised in that: the proppant is by following mass parts
Several raw materials are prepared: 100 parts of aggregate, 2 parts of resin, 1.2 parts of curing agent, 0.015 part of catalyst.
7. a kind of riverfrac treatment proppant according to claim 1-6, it is characterised in that: coating layer further includes amine
Class compound, coating layer are prepared by resin, curing agent, catalyst and aminated compounds.
8. a kind of riverfrac treatment proppant according to claim 7, it is characterised in that: the mass parts of the aminated compounds
Number is the 1-20% of resin quality number.
9. according to a kind of described in any item riverfrac treatment proppants of claim 2-6, it is characterised in that: curing agent is specifically selected
Toluene di-isocyanate(TDI), methylenediphenyl diisocyanates, isophorone diisocyanate, methyl diphenylene diisocyanate
One of or it is several.
10. according to a kind of described in any item riverfrac treatment proppants of claim 3-6, it is characterised in that: alkyls tin has
Machine metallic compound specifically selects dibutyl tin dilaurate, tributyl tin, and the organo-metallic compound of alkyl ekalead specifically selects
With lead tetraethide, isooctyl acid lead.
11. according to a kind of described in any item riverfrac treatment proppants of claim 4-6, it is characterised in that: polyalcohols resin
Select one of polymer such as ethyl alcohol, ethylene glycol, propylene glycol, glycerine, propyl alcohol or several.
12. a kind of riverfrac treatment proppant according to claim 7, it is characterised in that: the aminated compounds is diethyl
One of alkene triamine, triethylamine, ethamine, triethylene tetramine, ethylenediamine are several.
13. a kind of riverfrac treatment proppant according to claim 1-6, it is characterised in that: the aggregate is selected
Quartz sand, haydite, Artificial Ceramic matter sand, organic synthesis sand or organo-mineral complexing material sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203211A (en) * | 2008-10-29 | 2011-09-28 | 巴斯夫欧洲公司 | A proppant |
| CN103003386A (en) * | 2010-07-21 | 2013-03-27 | 巴斯夫欧洲公司 | A proppant |
| CN103608427A (en) * | 2011-05-03 | 2014-02-26 | 优选技术有限责任公司 | Coated and cured proppants |
| CN103889706A (en) * | 2011-07-22 | 2014-06-25 | 优选技术有限责任公司 | Coated and cured proppants |
| CN104039920A (en) * | 2011-12-15 | 2014-09-10 | 阿什兰南方化学科恩弗斯特有限公司 | Method for producing coated proppants |
| CN104520530A (en) * | 2012-01-23 | 2015-04-15 | 优选技术有限责任公司 | Manufacture of polymer coated proppants |
| CN104797681A (en) * | 2012-09-25 | 2015-07-22 | 优选技术有限责任公司 | Coated and cured proppants |
| CN104944840A (en) * | 2014-03-28 | 2015-09-30 | 北京仁创科技集团有限公司 | Preparation method of self-suspension proppant for natural hydrofracturing construction |
| CN104946234A (en) * | 2014-03-28 | 2015-09-30 | 北京仁创科技集团有限公司 | Self-suspended propping agent and preparation method thereof |
| CN104963677A (en) * | 2015-05-13 | 2015-10-07 | 中国石油大学(华东) | Method for detecting and determining fracturing fracture height by using propping agent |
| CN105934495A (en) * | 2013-11-26 | 2016-09-07 | 巴斯夫欧洲公司 | Proppant |
| US20160333259A1 (en) * | 2015-05-13 | 2016-11-17 | Preferred Technology, Llc | High performance 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 |
| CN106675549A (en) * | 2016-12-05 | 2017-05-17 | 北京奇想达新材料有限公司 | Water suspensible propping agent for oil and gas well fracturing and preparation method thereof |
| CN106928990A (en) * | 2015-12-30 | 2017-07-07 | 北京仁创科技集团有限公司 | Expanding material composition and from suspended prop and preparation method and application |
| CN107288607A (en) * | 2017-07-25 | 2017-10-24 | 中国石油大学(华东) | A kind of method of the nearly well fracturing fracture of utilization Gd neutrons spike yield imaging in evaluation |
| CN107438652A (en) * | 2015-03-30 | 2017-12-05 | 陶氏环球技术有限责任公司 | Proppant coating with preforming isocyanuric acid ester |
-
2018
- 2018-09-30 CN CN201811161959.8A patent/CN109401747A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102203211A (en) * | 2008-10-29 | 2011-09-28 | 巴斯夫欧洲公司 | A proppant |
| US20170058190A1 (en) * | 2009-10-20 | 2017-03-02 | Self-Suspending Proppant Llc | Proppants for hydraulic fracturing technologies |
| CN103003386A (en) * | 2010-07-21 | 2013-03-27 | 巴斯夫欧洲公司 | A proppant |
| CN103608427A (en) * | 2011-05-03 | 2014-02-26 | 优选技术有限责任公司 | Coated and cured proppants |
| US20150203745A1 (en) * | 2011-05-03 | 2015-07-23 | Preferred Technology, Llc | Coated and cured proppants |
| CN103889706A (en) * | 2011-07-22 | 2014-06-25 | 优选技术有限责任公司 | Coated and cured proppants |
| CN104039920A (en) * | 2011-12-15 | 2014-09-10 | 阿什兰南方化学科恩弗斯特有限公司 | Method for producing coated proppants |
| CN104520530A (en) * | 2012-01-23 | 2015-04-15 | 优选技术有限责任公司 | Manufacture of polymer coated proppants |
| CN104797681A (en) * | 2012-09-25 | 2015-07-22 | 优选技术有限责任公司 | Coated and cured proppants |
| CN105934495A (en) * | 2013-11-26 | 2016-09-07 | 巴斯夫欧洲公司 | Proppant |
| CN104944840A (en) * | 2014-03-28 | 2015-09-30 | 北京仁创科技集团有限公司 | Preparation method of self-suspension proppant for natural hydrofracturing construction |
| CN104946234A (en) * | 2014-03-28 | 2015-09-30 | 北京仁创科技集团有限公司 | Self-suspended propping agent and preparation method thereof |
| CN107438652A (en) * | 2015-03-30 | 2017-12-05 | 陶氏环球技术有限责任公司 | Proppant coating with preforming isocyanuric acid ester |
| CN104963677A (en) * | 2015-05-13 | 2015-10-07 | 中国石油大学(华东) | Method for detecting and determining fracturing fracture height by using propping agent |
| US20160333259A1 (en) * | 2015-05-13 | 2016-11-17 | Preferred Technology, Llc | High performance proppants |
| CN106928990A (en) * | 2015-12-30 | 2017-07-07 | 北京仁创科技集团有限公司 | Expanding material composition and from suspended prop and preparation method and application |
| 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 |
| CN106675549A (en) * | 2016-12-05 | 2017-05-17 | 北京奇想达新材料有限公司 | Water suspensible propping agent for oil and gas well fracturing and preparation method thereof |
| CN107288607A (en) * | 2017-07-25 | 2017-10-24 | 中国石油大学(华东) | A kind of method of the nearly well fracturing fracture of utilization Gd neutrons spike yield imaging in evaluation |
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