CN104946233A - Self-suspension supporting agent for natural water fracturing - Google Patents
Self-suspension supporting agent for natural water fracturing Download PDFInfo
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- 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
Abstract
The invention belongs to the field of exploitation of fluid ores such as petroleum, natural gases and shale gases and provides a self-suspension supporting agent for natural water fracturing construction. The self-suspension supporting agent is formed by coating or partially coating water-soluble high polymer materials on aggregate, wherein the aggregate refers to solid particles with enough mechanical strength capable of bearing fracture closure stress and is selected from one or more of quartz sand, ceramsite, metal particles, spherical glass particles, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, precoated sand and crushed shell particles; and the amount of water-soluble high polymers is 0.1-5wt% of the amount of the aggregate. According to the self-suspension supporting agent provided by the invention, proper high polymer materials and adhesive materials are selected, the supporting agent has good physical properties and chemical stability, the high polymer materials do not enter the reservoir cracks along with a fracturing fluid and can smoothly flow back, and the mining efficiency is obviously improved.
Description
Technical field
The invention belongs to the fluid mineral exploitation fields such as oil, Sweet natural gas and shale gas, be specifically related to a kind of propping agent by support reinforcing crack and preparation method thereof.
Background technology
When exploiting mineral products such as being formed in oil in subterranean strata, natural and shale gas, dissimilar fluid be introduced in the stratum of well or wellbore.Crude oil viscosity is large, the crack of oil reservoir is narrow and small, in order to improve petroleum production, reduce costs, usually adopts fracturing propping agents pressure break and support fracturing, to improve fracture flow capacity.Propping agent is deposited in the shaping crack on stratum, and crackle preventing is closed when pressure reduces.
In existing support fracturing technology, mainly comprise and use propping agent and fracturing liquid (active water, linear glue or frozen glue) two portions, fracturing liquid and propping agent are two independently systems, fracturing liquid flow at high speed, utilize turbulent suspension propping agent, after propping agent arrives crack, due to declining to a great extent of rate of flow of fluid, propping agent rapid subsidence is in Slit bottom.The method of the subterranean strata that the process that such as patent CN102159791A proposes is penetrated by well, it is prepared proppant particulates slurry and injects slurries downwards along well.Platy shaped particle in slurries can comprise the mixture of mica, talcum or these materials.Containing fluid loss agent, thickening material, mainly macromolecular compound in slurries.
In prior art, the macromolecular compound used in drag reduction water enters stratum in company with clear water, and the viscosity of drag reduction water increases, and when the row of returning, consumes very large pump horsepower, and is unfavorable for all rows of returning; The macromolecular compound partly staying underground blocks the hole on stratum, causes the pollution of oil pump capacity decline and formation.
Therefore, adopt natural water pressure break system production technique field, need to propose to produce pollution and the technology raising the efficiency and reduce production cost.
Summary of the invention
For prior art exist weak point, the object of this invention is to provide a kind of for natural water pressing crack construction from suspended prop.
Another object of the present invention is to provide the described preparation method from suspended prop.
For achieving the above object, concrete technical scheme is:
For in subterranean strata from a suspended prop, it is characterized in that, described from suspended prop be the particle being stained with water-soluble high-molecular material on aggregate;
Described aggregate is have one or more of the solid particulate that bears crack closure stress sufficient mechanical strength, includes but not limited to one or more in the shell particle of quartz sand, haydite, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, precoated sand, pulverizing;
The consumption of described water-soluble polymer is 0.1 ~ 5wt% of aggregate consumption.
Preferably, described aggregate is of a size of 6-200 order (namely between 2.8mm-0.075mm).
Further, described aggregate is spheroidal particle, oval particle or almost spherical, oval particle.
The material that the aggregate preferred hardness of metal material is high.Such as, the material of described metallic particles can be one or more in stainless steel, aluminium alloy, carbon steel, iron-nickel alloy or Ferro Manganese.
Wherein, the water-soluble high-molecular material described in described water-soluble high-molecular material is the organic materials of meeting water Fast-swelling or dissolving, is selected from the macromolecular material of natural polymer, synthetic polymer or half-natural semi-artificial synthesis,
Preferably, described natural macromolecular material is selected from starch, vegetable jelly, gelatin or seaweed gel; Described vegetable jelly is one or more in gum arabic, tragacanth gum, locust bean gum, guanidine glue, sesbania gum, rubber made from soybean cake; Described gelatin is one or more in gelatine, gelatin, casein food grade, chitosan; Described seaweed gel is one or more in algin sodium, sodium alginate, agar-agar;
The macromolecular material of described synthetic is polymeric type polymer, is selected from one or more in polymaleic anhydride, polyacrylamide, polyacrylic acid, polyoxyethylene glycol, polyoxyethylene, polyquaternium;
Described half-natural semi-artificial synthesized polymer material comprises treated starch, modified-cellulose and modified plant gum, is selected from one or more in carboxymethyl starch, Walocel MT 20.000PV, methylcellulose gum, ethyl cellulose, Natvosol, propyloic starch, starch acetates, methylol guanidine glue, hydroxypropyl guar, carboxy-methyl hydroxy propyl guanidine glue.
Wherein, described water-soluble high-molecular material adheres to aggregate by binding agent, by weight percentage, the consumption of binding agent is aggregate consumption 0.5 ~ 15wt%, described binding agent comprises all materials with attached function, comprise natural adhesive and synthetic adhesive, described natural adhesive preferably but be not limited in gelatine, rosin, tung oil one or more; Described synthetic adhesive preferably but be not limited in resol, epoxy resin, unsaturated polyester resin, heterocyclic polymer binding agent one or more.
Further, described resol is novolac resin or heat-reactive phenolic resin; Described epoxy resin uses the epoxy resin that epoxy equivalent (weight) is 0.09-0.14mol/100g; Be preferably bisphenol A type epoxy resin, more preferably epoxy resin E-55(616), E-51 (618), E-44 (6101), E-42 (634), E-35 (637), E-20 (601), E-12 (604), E-06 (607), E-03 (609); Described unsaturated polyester resin is one or more in adjacent benzene-type unsaturated polyester resin, metaphenylene unsaturated polyester resin, xylol type unsaturated polyester resin, Bisphenol a unsaturated polyester resin, halo unsaturated polyester resin, vinyl ester resin; Preferred described adjacent benzene-type unsaturated polyester resin model is 191 or 196; Described metaphenylene unsaturated polyester resin model is 199, the preferred model of xylol type unsaturated polyester resin is 2608, one or more in 902A3, Xm-1, Xm-2; The preferred model of Bisphenol a unsaturated polyester resin is one or more in 197,3301,323; Described heterocyclic polymer binding agent be selected from polyimide, polybenzimidazole, polyphenylene sulfide, polydiphenyl ether one or more.
Preparation method from suspended prop of the present invention, is be scattered in aggregate by binding agent, adds solidifying agent, then add water-soluble high-molecular material and obtain;
Or, be that binding agent is scattered in aggregate, add water-soluble high-molecular material, then add solidifying agent and obtain;
Wherein, described solidifying agent is the one in fatty amine and affixture, tertiary amine and salt thereof, aromatic amine and modification body thereof, imidazoles, acid anhydrides, acyl peroxide, lipid peroxidation, paraformaldehyde, phenolic aldehyde amine (T-31), diethylenetriamine, triethylene tetramine, hexamethylenetetramine; Solidifying agent is the 0.5-10% of weight of binder.
Described preparation method, particularly, comprises step:
1) with one or more in the shell particle of quartz sand, haydite, precoated sand, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, pulverizing for aggregate; Be heated to 50-300 DEG C, cool to less than 240 DEG C and add the binding agent that weight is aggregate weigh 0.5 ~ 15wt%, then add solidifying agent and stir;
2) when step 1) gained mixture temperature is down to below 150 DEG C, add the water-soluble high-molecular material of 0.1 ~ 5wt% of aggregate weigh, and stir.
Or, comprise step:
1) with one or more in the shell particle of quartz sand, haydite, precoated sand, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, pulverizing for aggregate, add binding agent that weight is aggregate weigh 0.5 ~ 15wt% and stir;
2) add the water-soluble high-molecular material of 0.1 ~ 5wt% of aggregate weigh, then add solidifying agent, and stir.
Or:
1) with one or more in the shell particle of quartz sand, haydite, precoated sand, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, pulverizing for aggregate, be heated to 50-300 DEG C, cool to less than 240 DEG C, add binding agent that weight is aggregate weigh 0.5 ~ 15wt% and stir;
2) when step 1) gained mixture temperature is down to below 150 DEG C, add the water-soluble high-molecular material of 0.1 ~ 5wt% of aggregate weigh, then add solidifying agent, and stir.
Wherein, described binding agent is liquid adhesive under normal temperature.
Further, described step 2) after also comprise cooling, sieve step.
The present invention propose from the application of suspended prop in the exploitation of the fluid mineral such as oil, Sweet natural gas and shale gas.
Particularly, described application is mixing the present invention's proposition according to the volume ratio 1:0.4-8 of water from suspended prop, passes in mineral reserve, play the effect of support fracturing after stirring.Described water refers to natural water, comprises clear water, tap water, surface water or underground water, does not add chemical.
Beneficial effect of the present invention is:
What the present invention proposed suspends certainly, and propping agent is by selecting suitable macromolecular material and adhesives, and have good physicals and chemical stability, macromolecular material can not enter in reservoir gap with fracturing liquid, significantly improves the efficiency of mining.
What the present invention proposed suspends certainly; propping agent; can replace adding organic polymer and the fracturing liquid of costliness carries out waterfrac treatment construction with natural water; and this constructional method without the need to preparing in make-up station or dosing pond, can realize sequential production, really achieve simple operation; reduce construction cost; reduce environmental pollution, protection underground water, the object increased production and improved productivity.
It is long from suspended prop suspension time in clear water that the present invention proposes, and can better meet the needs of mining.What the present invention proposed can reduce of the fracturing fluid frictional resistance from suspended prop, makes to apply pressure break support system of the present invention and has substantially identical performance with existing fracturing liquid, easily carry, easily the row of returning.
Embodiment
Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
1) with quartz sand (river sand) for raw material, through cleaning, after 120 DEG C of 5h dry, completely not moisture in sand, screening 20-40 object quartz sand is aggregate;
2) step 1) process after quartz sand 1000g, be heated to 200 DEG C, add epoxy resin E-51 (618) 10g, stir (in whipping process, mixture temperature is down to 170 DEG C), add solidifying agent Tetra hydro Phthalic anhydride 1g, stir;
3) step 2) temperature of mixture is down to 140 DEG C, adds carboxymethyl cellulose 8g.Stir.
4) cool, sieve, the propping agent obtained is particle diameter 20-40 object particle, and aggregate surface is coated or be partly coated with carboxymethyl cellulose macromolecular material.
Embodiment 2
1) 40-70 order 1kg quartz sand (river sand) is got as aggregate, for subsequent use;
2) be heated to 200 DEG C, in aggregate, add epoxy resin E-55(616) 10g, when temperature is down to below 140 DEG C, add polycaprolactone 10g, then add imidazoles 0.2g, Homogeneous phase mixing.
3) after cooling, the propping agent obtained is particle diameter 40-70 object particle, and aggregate surface is coated or be partly coated with polycaprolactone macromolecular material.
Embodiment 3
1) 30-50 order 1kg quartz sand (river sand) is got as aggregate, for subsequent use;
2) be heated to 220 DEG C, in aggregate, add bisphenol A-type unsaturated polyester 330112g, when temperature is down to 130 DEG C, adds carboxy-methyl hydroxy propyl guanidine glue 5g, then add benzoyl peroxide 0.1g, Homogeneous phase mixing;
3) by above-mentioned steps 2) in mixture cooling, screening, to obtain final product.
Embodiment 4
1) (density is high, medium and low, and the present embodiment selects volume density 1.7g/cm to get 30-50 order 1kg haydite
3haydite) as aggregate, for subsequent use;
2) be heated to 220 DEG C, in aggregate, add bisphenol A-type unsaturated polyester 330112g, stir, add benzoyl peroxide 0.1g, when temperature is down to 140 DEG C, add anion-polyacrylamide 5g, Homogeneous phase mixing;
3) by above-mentioned steps 2) in mixture cooling, screening, to obtain final product.
Embodiment 5
1) (density is high, medium and low, and the present embodiment selects volume density 1.7g/cm to get 40-70 order 1kg haydite
3haydite) as aggregate, for subsequent use;
2) be heated to 220 DEG C, in aggregate, add Bisphenol a unsaturated polyester resin 10g, stir, add benzoyl peroxide 0.2g, when temperature is down to 140 DEG C, add polyvinyl acetate alcohol 10g, Homogeneous phase mixing;
3) by above-mentioned steps 2) in mixture cooling, screening, to obtain final product.
Embodiment 6
1) 30-50 order 1kg sintered bauxite is got as aggregate, for subsequent use;
2) be heated to 210 DEG C, in aggregate, add adjacent benzene-type unsaturated polyester 19110g, when temperature is down to 130 DEG C, add Walocel MT 20.000PV 5g, then add benzoyl peroxide 0.02g, ketal peroxide 0.01g, Homogeneous phase mixing;
3) by above-mentioned steps 2) in mixture cooling, screening, to obtain final product.
Embodiment 7
1) 70-140 order 1kg sintered bauxite and each half of sintered alumina is got, as aggregate, for subsequent use;
2) be heated to 210 DEG C, in aggregate, add epoxy resin E-51 (618) 12g, after stirring, add solidifying agent aromatic amine 3g again, when temperature is down to below 140 DEG C, add carboxy-methyl hydroxy propyl guanidine glue 10g,
3) by above-mentioned steps 2) in mixture cooling, screening, to obtain final product.
Embodiment 8
1) 40-70 order 1kg stainless steel microballoon is got as aggregate, for subsequent use;
2) be heated to 220 DEG C, in aggregate, add dimethylbenzene unsaturated polyester resin Xm-210g, when temperature is down to 140 DEG C, add chitosan 10g, solidifying agent methylethyl ketone peroxide 0.3g successively, Homogeneous phase mixing;
3) by above-mentioned steps 2) in mixture cooling, screening, to obtain final product.
Embodiment 9
1) 40-70 order 1kg aluminium alloy microballoon and each half of stainless steel microballoon is got as aggregate, for subsequent use;
2) be heated to 220 DEG C, in aggregate, add dimethylbenzene unsaturated polyester resin Xm-210g, when temperature is down to 140 DEG C, add carboxy-methyl hydroxy propyl guanidine glue 10g, solidifying agent methylethyl ketone peroxide 0.3g successively, Homogeneous phase mixing;
3) by above-mentioned steps 2) in mixture cooling, screening, to obtain final product.
Embodiment 10
1) 40-70 order 1kg glass microsphere is got as aggregate, for subsequent use;
2) be heated to 220 DEG C, in aggregate, add dimethylbenzene unsaturated polyester resin Xm-210g, when temperature is down to 140 DEG C, add guanidine glue 10g, solidifying agent methylethyl ketone peroxide 0.3g successively, Homogeneous phase mixing;
3) by above-mentioned steps 2) in mixture cooling, screening, to obtain final product.
Embodiment 11
1) with quartz sand (river sand) for raw material, through cleaning, after 120 DEG C of 5h dry, completely not moisture in sand, screening 20-40 object quartz sand is aggregate;
2) step 1) process after quartz sand 1000g, add epoxy resin E-51 (618) 10g, add solidifying agent diethylenetriamine 1g after stirring, and stir;
3) step 2) gained mixture adds carboxymethyl cellulose 8g.And stir.
4) sieve, the propping agent obtained is particle diameter 20-40 object particle, and aggregate surface is coated or be partly coated with carboxymethyl cellulose macromolecular material.
Embodiment 12
1) with precoated sand (patent CN1640981A, the method preparation of embodiment 2), 1000g is raw material, adds epoxy resin E-44 10g, adds solidifying agent diethylenetriamine 1g, and stir after stirring;
3) step 2) add carboxymethyl cellulose 8g.And stir.
4) sieve, the propping agent obtained is particle diameter 20-40 object particle, and aggregate surface is coated or be partly coated with carboxymethyl cellulose macromolecular material.
Comparative example 1
Propping agent: ordinary ceramsite (volume density 1.7g/cm
3haydite) propping agent, granularity 20-40 order.
Comparative example 2
Propping agent: quartz sand, granularity 20-40 order.
Comparative example 3
Propping agent: patent CN1640981A, precoated sand prepared by the method for embodiment 2.
Test example
The water of the Repone K of the anionic polyacrylamide (3,000,000) of active water: 0.25g, OP-10,10g of 1g, 0.1g formaldehyde and 488.65g.
The preparation process of active water is: be dissolved in the water of 488.65g by the polyacrylamide of above-mentioned specified quantitative, mix, obtain viscous water; The OP-10 of above-mentioned specified quantitative is dissolved in the viscous water of acquisition, mixes; Add 10g Repone K again, stir; Add 0.1g formaldehyde, stir.
Clear water: tap water
Test method: the propping agent of embodiment 1-12, comparative example 1-3 has been carried out to liquid viscosity respectively, taken grittiness energy and frictional resistance parameter testing in active water, and viscosity determining procedure is see standard (SYT5107-2005); Settling velocity measures and adopts 0.5m plexi-glass tubular, and the active water that loading 45cm is high and sand, than the propping agent being 30%, shake up the settling velocity of test propping agent; Frictional resistance adopts DV-III viscometer, and configure the pressure break system of 30% sand ratio, fixed rotating speed and rotor, the moment of torsion measuring them characterizes.Test result is as following table 1-table 3:
Table 1 adds the viscosity of active water after propping agent
In table 1, the mass ratio of propping agent and active water is 30:100.Sequence number 1,2 ... represent embodiment 1, embodiment 2 ...., sequence number " to 1 " represents comparative example 1.Lower same.
The settling velocity of propping agent in table 2 active water
The frictional resistance of propping agent in table 3 active water
Test result shows, and what the present invention proposed has excellent prop-carrying capacity from suspended prop and fall frictional resistance ability in active water.
Test method: the propping agent of embodiment 1-12, comparative example 1-3 has been carried out to liquid viscosity respectively, taken grittiness energy and frictional resistance parameter testing in clear water, and viscosity determining procedure is see standard (SYT5107-2005); Settling velocity measures and adopts 0.5m plexi-glass tubular, and the active water that loading 45cm is high and sand, than the propping agent being 30%, shake up the settling velocity of test propping agent; Frictional resistance adopts DV-III viscometer, and configure the pressure break system of 30% sand ratio, fixed rotating speed and rotor, the moment of torsion measuring them characterizes.Test result is as following table 4-table 6:
Table 4 adds the viscosity of clear water after propping agent
The settling velocity of propping agent in table 5 clear water
Propping agent prepared by the embodiment of the present application 1-12, joins in clear water according to sand ratio (volume ratio of propping agent and water) 10:100,20:100,30:100, after stirring, all can suspend more than two hours.
The propping agent of comparative example, joins in clear water according to sand ratio (volume ratio of propping agent and water) 10:100,20:100,30:100, after stirring, and quartz sand about 10 seconds sedimentation 0.5m, haydite about 15 seconds, precoated sand about 30 seconds.
The frictional resistance of propping agent in table 6 clear water
Test result shows, and propping agent proposed by the invention has excellent prop-carrying capacity and falls frictional resistance ability in natural water pressure break system.
Experimental example 2
With reference to People's Republic of China's oil and gas industry standard, fracturing propping agents filling bed short-term flow conductivity evaluation method, namely APIRP61 tests rate of permeation, the mechanical property of different propping agent packing layer.The results are shown in Table 7, table 8.
The each test group permeability result of table 7 (unit: μm
2.cm)
Carry out Performance Detection according to standard SY/T5108-2006, the group name of each experimental group is the same, and detected result is in table 8:
Table 8: mechanical strength test
Test result shows, and propping agent proposed by the invention has excellent physical strength in natural water pressure break system, can not be in use damaged.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various modification that the common engineering technical personnel in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (11)
1. for natural water pressure break from a suspended prop, it is characterized in that, described is adhere to water-soluble high-molecular material on aggregate from suspended prop;
Described aggregate is the solid particulate with the sufficient mechanical strength bearing crack closure stress, is selected from one or more in the shell particle of quartz sand, haydite, precoated sand, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, pulverizing;
The consumption of described water-soluble high-molecular material is 0.1 ~ 5wt% of aggregate consumption.
2. according to claim 1 from suspended prop, it is characterized in that, described aggregate is of a size of 6-200 order.
3. according to claim 1 from suspended prop, it is characterized in that, described water-soluble high-molecular material is the organic materials of meeting water Fast-swelling or dissolving, is selected from natural macromolecular material, the macromolecular material of synthetic or the macromolecular material of half-natural semi-artificial synthesis;
Described natural macromolecular material is selected from starch, vegetable jelly, gelatin or seaweed gel; Described vegetable jelly is one or more in gum arabic, tragacanth gum, locust bean gum, guanidine glue, sesbania gum, rubber made from soybean cake; Described gelatin is one or more in gelatine, gelatin, casein food grade, chitosan; Described seaweed gel is one or more in algin sodium, sodium alginate, agar-agar;
The macromolecular material of described synthetic is polymeric type macromolecular material, is selected from one or more in polymaleic anhydride, polyacrylamide, polyacrylic acid, polyoxyethylene glycol, polyoxyethylene, polyquaternium;
The macromolecular material of described half-natural semi-artificial synthesis comprises treated starch, modified-cellulose and modified plant gum, is selected from one or more in carboxymethyl starch, Walocel MT 20.000PV, methylcellulose gum, ethyl cellulose, Natvosol, propyloic starch, starch acetates, methylol guanidine glue, hydroxypropyl guar, carboxy-methyl hydroxy propyl guanidine glue.
4. according to claim 1 from suspended prop, it is characterized in that, described water-soluble high-molecular material adheres to aggregate by binding agent, by weight percentage, the consumption of binding agent is aggregate consumption 0.5-15wt%, described binding agent comprises all materials with attached function, comprises natural adhesive and synthetic adhesive, and described natural adhesive comprises gelatin, vegetable jelly and mineral rubber; Described gelatin be selected from hide glue, gelatine, shellac, casein glue, albumin glue, Air Bladder pseudosciaenae seu Acipenser one or more; Described vegetable jelly be selected from starch, dextrin, rosin, tung oil, Sudan Gum-arabic, natural rubber one or more; Described mineral rubber be selected from mineral wax, pitch one or more; Described synthetic adhesive be selected from resol, epoxy resin, unsaturated polyester resin, heterocyclic polymer binding agent one or more.
5. according to claim 4 from suspended prop, it is characterized in that, described resol is novolac resin or heat-reactive phenolic resin; Described epoxy resin uses the epoxy resin that epoxy equivalent (weight) is 0.09-0.14mol/100g; Be preferably bisphenol A type epoxy resin, more preferably epoxy resin E-55(616), E-51 (618), E-44 (6101), E-42 (634), E-35 (637), E-20 (601), E-12 (604), E-06 (607), E-03 (609); Described unsaturated polyester resin be selected from adjacent benzene-type unsaturated polyester resin, metaphenylene unsaturated polyester resin, xylol type unsaturated polyester resin, Bisphenol a unsaturated polyester resin, halo unsaturated polyester resin, vinyl ester resin one or more; Preferred described adjacent benzene-type unsaturated polyester resin model is 191 or 196; The preferred model of described metaphenylene unsaturated polyester resin is 199, xylol type unsaturated polyester resin model is 2608, one or more in 902A3, Xm-1, Xm-2; Bisphenol a unsaturated polyester resin model be preferably in 197,3301,323 one or more; Described heterocyclic polymer binding agent be selected from polyimide, polybenzimidazole, polyphenylene sulfide, polydiphenyl ether one or more.
6. the arbitrary described preparation method from suspended prop of claim 1-5, is characterized in that, be scattered in aggregate by binding agent, add solidifying agent, then add water-soluble high-molecular material and obtain;
Or, be that binding agent is scattered in aggregate, add water-soluble high-molecular material, then add solidifying agent and obtain;
Wherein, described solidifying agent is the one in fatty amine and affixture, tertiary amine and salt thereof, aromatic amine and modification body thereof, imidazoles, acid anhydrides, acyl peroxide, lipid peroxidation, paraformaldehyde, phenolic aldehyde amine, diethylenetriamine, triethylene tetramine, hexamethylenetetramine; Solidifying agent is the 0.5-10% of weight of binder.
7. preparation method according to claim 6, is characterized in that, comprises step:
1) with one or more in the shell particle of quartz sand, haydite, precoated sand, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, pulverizing for raw material; Aggregate is heated to 50-300 DEG C, is cooled to less than 240 DEG C, adds binding agent that weight is aggregate weigh 0.5 ~ 15wt% and stirs, then adding solidifying agent;
2) when step 1) gained mixture temperature is down to below 150 DEG C, add the water-soluble high-molecular material of 0.1 ~ 5wt% of aggregate weigh, and stir.
8. preparation method according to claim 6, is characterized in that, comprises step:
1) with one or more in the shell particle of quartz sand, haydite, precoated sand, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, pulverizing for aggregate, add binding agent that weight is aggregate weigh 0.5 ~ 15wt% and stir;
2) add solidifying agent again, add the water-soluble high-molecular material of 0.1 ~ 5wt% of aggregate weigh, and stir.
9. preparation method according to claim 6, is characterized in that, comprises step:
1) with one or more in the shell particle of quartz sand, haydite, precoated sand, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, pulverizing for aggregate; Be heated to 50-300 DEG C, be cooled to less than 240 DEG C, add binding agent that weight is aggregate weigh 0.5 ~ 15wt% and stir;
2) when step 1) gained mixture temperature is down to below 150 DEG C, add the water-soluble high-molecular material of 0.1 ~ 5wt% of aggregate weigh, then add solidifying agent, and stir.
10. preparation method according to claim 6, is characterized in that, comprises step:
1) with one or more in the shell particle of quartz sand, haydite, precoated sand, metallic particles, globular glass particle, sintered bauxite, sintered alumina, sintered zirconia, synthetic resins, pulverizing for aggregate, add binding agent that weight is aggregate weigh 0.5 ~ 15wt% and stir;
2) add the water-soluble high-molecular material of 0.1 ~ 5wt% of aggregate weigh, then add solidifying agent, and stir.
11., according to the arbitrary described preparation method of claim 7-10, is characterized in that, described step 2) after the step that also comprises cooling, sieve.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123724.5A CN104946233B (en) | 2014-03-28 | 2014-03-28 | It is a kind of for natural water pressure break from suspended prop |
| EP15769703.8A EP3124741A4 (en) | 2014-03-28 | 2015-03-27 | Self-suspending proppant and preparation and use thereof |
| PCT/CN2015/075289 WO2015144091A1 (en) | 2014-03-28 | 2015-03-27 | Self-suspending proppant and preparation and use thereof |
| US15/129,773 US20170145302A1 (en) | 2014-03-28 | 2015-03-27 | Self-suspending proppant and preparation and use thereof |
| CA2948953A CA2948953A1 (en) | 2014-03-28 | 2015-03-27 | Self-suspending proppant and preparation and use thereof |
| RU2016142542A RU2652592C1 (en) | 2014-03-28 | 2015-03-27 | Self-advancing proppant, its preparation and usage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410123724.5A CN104946233B (en) | 2014-03-28 | 2014-03-28 | It is a kind of for natural water pressure break from suspended prop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104946233A true CN104946233A (en) | 2015-09-30 |
| CN104946233B CN104946233B (en) | 2018-12-04 |
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| CN201410123724.5A Active CN104946233B (en) | 2014-03-28 | 2014-03-28 | It is a kind of for natural water pressure break from suspended prop |
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| CN112812762A (en) * | 2019-11-18 | 2021-05-18 | 中国石油天然气股份有限公司 | Proppant, fracturing fluid and preparation method of proppant |
| CN115418213A (en) * | 2022-07-29 | 2022-12-02 | 天府新能源研究院 | Petroleum fracturing propping agent for horizontal well and preparation method thereof |
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| CN108841372A (en) * | 2018-07-04 | 2018-11-20 | 中国石油集团渤海钻探工程有限公司 | Water-absorbing resins overlay film is from suspended prop and preparation method thereof |
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| CN112812762B (en) * | 2019-11-18 | 2022-07-05 | 中国石油天然气股份有限公司 | Proppant, fracturing fluid and preparation method of proppant |
| CN111154479A (en) * | 2020-01-23 | 2020-05-15 | 中国石油大学(北京) | Shale debris coated proppant and preparation method and application thereof |
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| CN115418213A (en) * | 2022-07-29 | 2022-12-02 | 天府新能源研究院 | Petroleum fracturing propping agent for horizontal well and preparation method thereof |
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Application publication date: 20150930 Assignee: Beijing Rechsand rishing oil mining technology Co.,Ltd. Assignor: BEIJING RECHSAND SCIENCE & TECHNOLOGY GROUP Co.,Ltd. Contract record no.: X2021990000738 Denomination of invention: Self suspension proppant for natural hydraulic fracturing Granted publication date: 20181204 License type: Common License Record date: 20211201 |
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