WO2015012319A1 - 酸硬化剤含有物および酸硬化剤含有物の製造方法 - Google Patents
酸硬化剤含有物および酸硬化剤含有物の製造方法 Download PDFInfo
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- WO2015012319A1 WO2015012319A1 PCT/JP2014/069478 JP2014069478W WO2015012319A1 WO 2015012319 A1 WO2015012319 A1 WO 2015012319A1 JP 2014069478 W JP2014069478 W JP 2014069478W WO 2015012319 A1 WO2015012319 A1 WO 2015012319A1
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- Prior art keywords
- acid
- curing agent
- acid curing
- containing material
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
- C08K5/42—Sulfonic acids; Derivatives thereof
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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
- C09K8/62—Compositions for forming crevices or fractures
- C09K8/72—Eroding chemicals, e.g. acids
- C09K8/725—Compositions containing polymers
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- 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
- C08G85/00—General processes for preparing compounds provided for in this subclass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J3/12—Powdering or granulating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/203—Solid polymers with solid and/or liquid additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- C08K5/43—Compounds containing sulfur bound to nitrogen
- C08K5/435—Sulfonamides
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
- E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2371/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08J2371/14—Furfuryl alcohol polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2400/00—Characterised by the use of unspecified polymers
- C08J2400/16—Biodegradable polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/16—Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
Definitions
- the present invention relates to an acid curing agent-containing material and a method for producing an acid curing agent-containing material.
- hydraulic crushing is performed.
- viscous fluid is injected into the underground layer through the excavation hole at a sufficient speed and pressure to form a crack in the underground layer.
- an injection containing the particles is injected into the underground layer, and the formed cracks are filled with the particles to prevent clogging of the cracks.
- Such particles include coated particles in which core particles such as silica sand and glass beads are coated with a thermosetting resin such as an epoxy resin or a phenol resin.
- a thermosetting resin such as an epoxy resin or a phenol resin.
- an injection agent in which particles, an epoxy resin, and an acid curing agent are added has been proposed (for example, see Patent Document 1).
- This injectant fills the crack formed in the underground layer with particles, epoxy resin and acid curing agent, and then cures the epoxy resin by the action of acid curing agent using the underground thermal energy Designed to let you.
- the particles are coated with a cured epoxy resin and settled in the cracks.
- the acid curing agent-containing material is composed of a plurality of particles, Each said particle
- the biodegradable polyester is at least one selected from the group consisting of polyglycolic acid, polylactic acid, polybutylene succinate, polyethylene succinate and polycaprolactone, and contains an acid curing agent according to (3) above object.
- the compound has a number of functional groups of 0.1 to 1.9 when the number of acidic groups of the acid curing agent is 1.
- the acid curing agent-containing material according to any one of (1) to (11), which is included.
- the acid curing agent is selected from the group consisting of p-toluenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, phenolsulfonic acid, naphthalenesulfonic acid, dinonylnaphthalenesulfonic acid and dinonylnaphthalenedisulfonic acid.
- the acid curing agent-containing material is used to prepare a resin composition for forming a surface layer covering at least a part of the outer surface of particles filled in cracks formed in the underground layer.
- the acid curing agent-containing material according to any one of (1) to (14) above.
- the acid curing agent is added so as to be 0.1 part by mass or more and 300 parts by mass or less with respect to 100 parts by mass of the polyester.
- the acid curing agent in an acid curing agent-containing material containing an acid curing agent having an acidic group and polyester, is a compound in which the acidic group is reactive with the acidic group, for example, It exists in a blocked state by combining. Accordingly, when a resin composition is prepared using such an acid curing agent-containing material and an acid curable resin, the resin composition is attributed to the fact that the acid curing agent is blocked and polyester is included. It can prevent that the acid curable resin contained in a thing hardens
- FIG. 1 is a view showing an embodiment of an injection containing the acid curing agent-containing material of the present invention.
- FIG. 2 is a partial cross-sectional view showing coated particles in which particles contained in the injecting agent in FIG. 1 are coated with a cured product of an acid curable resin.
- FIG. 3 is a partial cross-sectional view showing a state in which pressure is applied to the coated particles shown in FIG.
- FIG. 4 is a conceptual diagram for explaining a method of recovering hydrocarbons from the underground layer.
- FIG. 5 is a graph showing changes over time in the degree of curing in the resin compositions of Example 1 and Comparative Example.
- FIG. 1 is a diagram showing an embodiment of an injection containing the acid curing agent-containing material of the present invention
- FIG. 2 is a coated particle in which particles contained in the injection of FIG. 1 are coated with a cured product of an acid curable resin.
- FIG. 3 is a partial cross-sectional view showing a state in which pressure is applied to the coated particles shown in FIG.
- the injection containing the acid curing agent-containing material of the present invention is injected into a crack formed in the underground layer when oily or gaseous hydrocarbon (fluid) is recovered from the underground layer (shale layer).
- Such an injection agent includes particles 2 filled in cracks, an acid curing agent A in which acidic groups are blocked, an acid curable resin B that cures in the presence of an acid, that is, by the action of the acid curing agent A, and It contains polyester for delaying the reaction between the acid curing agent A and the acid curable resin B, and a fluid 20 for transferring the acid curing agent A and the acid curable resin B to the crack.
- the acid curing agent-containing material of the present invention is constituted by the acid curing agent A in which the acidic group is blocked and the polyester.
- the injection 100 of the present embodiment includes particles 2, fine particles 10 mainly composed of polyester in which an acid curing agent A in which acidic groups are blocked is dispersed, and fine particles The acid curable resin B and the fluid 20 are included.
- the particle 2 is a surface layer formed of a cured product of the acid curable resin B generated by the action of the acid curing agent A in a state filled with cracks formed in the underground layer. 3 and is present as coated particles 1.
- the coated particles 1 are filled in cracks formed in the underground layer, and the cracks are prevented from being blocked, and the fluid permeability of the filling site (underground layer cracks) of the coated particles 1 in the underground layer is ensured. . Thereby, the inflow efficiency of the hydrocarbon (shale gas or shale oil) to the excavation hole communicating with the crack can be increased.
- Particle 2 functions as a support material in the crack.
- Various particles having a relatively high mechanical strength can be used for the particles 2 and are not limited to a specific type.
- Specific examples of the particles 2 include sand particles, ceramic particles, silica particles, metal particles, and walnut shells.
- the plurality of particles 2 include at least one of sand particles and ceramic particles.
- Sand particles and ceramic particles have high mechanical strength, and are relatively inexpensive and readily available.
- the average particle diameter of the plurality of particles 2 is preferably about 100 ⁇ m or more and 3,000 ⁇ m or less, and more preferably about 200 ⁇ m or more and 1,000 ⁇ m or less.
- the plurality of particles 2 may include particles having a variation in particle diameter and different in particle diameter by about 10 times. That is, when the particle size distribution of the plurality of particles 2 is measured, the half width of the peak of the particle size distribution curve represented by the angle function may be a relatively large value.
- the cross-sectional shape of the particle 2 is shown as a substantially circular shape, but may be an elliptical shape, a polygonal shape, an irregular shape, or the like. In these cases, the particle size of the particles 2 is defined as the maximum length in the cross section.
- the cross-sectional shape is preferably as close to a circular shape as possible.
- Such ceramic particles have a particularly high mechanical strength. Further, by using such ceramic particles, the coated particles 1 come into point contact with each other in a state filled with cracks. For this reason, the volume of the space (flow path) formed between them can be increased.
- the particles 2 naturally produced sand particles can be used as they are. By using such sand particles, the productivity of the injection 100 can be improved and the cost can be reduced. Furthermore, a mixture of ceramic particles and sand particles may be used as the particles 2. In this case, the mixing ratio of the ceramic particles and the sand particles is preferably about 1: 9 to 9: 1, more preferably about 3: 7 to 7: 3 in terms of mass ratio.
- each particle 2 is covered with the surface layer 3 when filled with cracks.
- the surface layer 3 functions to prevent the fragments of the particles 2 from being dissipated even when the particles 2 filled in the cracks in the underground layer are temporarily collapsed by underground pressure. For this reason, it is possible to prevent the space (flow path) between the coated particles 1 from being blocked by the particles 2. Thereby, the fluid permeability of the crack with which the covering particle
- the content of the particles 2 in the entire injectant 100 is preferably about 5% by mass or more and 50% by mass or less, and more preferably about 5% by mass or more and 15% by mass or less. Injectant 100 containing such an amount of particles 2 can stably disperse particles 2 regardless of the viscosity of the fluid.
- the surface layer 3 preferably covers the entire outer surface of the particle 2 when filled with cracks formed in the underground layer, but a part of the outer surface of the particle 2. It may be coated only. That is, the plurality of particles 2 may be covered with the crack formed in the underground layer, and all of them may be covered with the surface layer 3 over the entire outer surface, or a part of the outer surface. Only the surface layer 3 may be covered. Further, in the above state, some of the particles 2 may be covered with the surface layer 3 over the entire outer surface, and the remaining particles 2 may be covered with the surface layer 3 over only part of the outer surface.
- the surface layer 3 is composed of a cured product formed by curing the acid curable resin B contained in the injection agent 100 (resin composition) by the action of the acid curing agent A.
- the acid curing agent A and the acid curable resin B react will be described.
- the injection agent 100 is cured by the action of the acid curable resin B that is cured in the presence of an acid, that is, the acid curing agent A, in addition to the acid curing agent-containing material of the present invention containing the acid curing agent A and polyester.
- An acid curable resin B is included.
- the acid curing agent A having reactivity with the acid curable resin B is a compound in which the acidic group is reactive with the acidic group (hereinafter, this compound is referred to as “block”).
- Compound " is present in a blocked state by chemical bonding.
- the block compound is designed to be released from the acid curing agent A under predetermined conditions.
- each particle 10 the acid curing agent A in which acidic groups are blocked is dispersed in the polyester.
- the acid curing agent A and the acid curable resin B exist in a separated state.
- the polyester contained as the main material in each particle 10 a polyester that hydrolyzes under a predetermined condition is selected.
- the curing of the acid curable resin B by the action of the acid curing agent A is controlled (delayed) by blocking with the block compound of the acid curing agent A and dispersing the polyester in each particle 10. Is done.
- the acid curing agent A and the acid curable resin B are contacted (reacted) at an unnecessary portion by blocking the acidic group included in the acid curing agent A with a block compound, and the acid curing property. It is possible to prevent the resin B from being cured.
- the acid curing agent A and the acid curable resin B come into contact with (react with) the acid when the block compound is detached from the acid curing agent A at a necessary place (that is, a crack formed in the underground layer).
- the curable resin B can be cured.
- the acid curing agent A is blocked with a block compound at an unnecessary portion, so that the function (reactivity) for curing the acid curable resin B is inactivated.
- the acid curable resin B can be cured by being activated by the separation of the compound.
- blocking is a reaction in which a functional group of a block compound is chemically bonded to an acidic group provided in the acid curing agent A, and the curing of the acid curable resin B proceeds by the acidic group.
- Unblocking means that the functional group of the block compound is detached from the acidic group of the acid curing agent A, and the reactivity with which the curing of the acid curable resin B proceeds is activated by the acidic group. Say that you are in a state.
- the “chemical bond” is not limited as long as the reactivity of the acid curable resin B proceeds can be inactivated by the reaction between the functional group of the block compound and the acidic group of the acid curing agent A.
- intramolecular bonds such as covalent bonds and coordinate bonds, ionic bonds, and intermolecular chemical bonds such as van der Waals bonds.
- the acid curing agent A functions as a catalyst for promoting the curing reaction of the acid curable resin B when the blocking by the block compound is released and the polyester is decomposed and comes into contact with the acid curable resin B.
- any compound may be used as long as it has an acidic group and can function as the catalyst by the action of the acidic group.
- the acid curing agent A include, for example, p-toluenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, phenolsulfonic acid, naphthalenesulfonic acid, dinonylnaphthalenesulfonic acid, dinonylnaphthalenedisulfonic acid, xylenesulfonic acid.
- compounds having a sulfonic acid group as an acidic group such as methanesulfonic acid, compounds having a carboxyl group as an acidic group such as acetic acid, lactic acid, maleic acid, benzoic acid, and fluoroacetic acid.
- compounds having a sulfonic acid group as an acidic group such as methanesulfonic acid
- compounds having a carboxyl group as an acidic group such as acetic acid, lactic acid, maleic acid, benzoic acid, and fluoroacetic acid.
- Species or a combination of two or more can be used.
- the acid curing agent A is preferably a compound containing a sulfonic acid group as an acidic group.
- the acid curing agent A having a sulfonic acid group as such an acidic group is a very good catalyst for the acid curable resin B, and can reliably block the acidic group with a blocking compound.
- the acid curing agent A containing a sulfonic acid group as an acidic group includes p-toluenesulfonic acid, benzenesulfonic acid, dodecylbenzenesulfonic acid, phenolsulfonic acid and naphthalenesulfonic acid, dinonylnaphthalenesulfonic acid and dinonylnaphthalenedisulfonic acid. It is preferable to include at least one selected from the group consisting of: These acid curing agents A can block an acidic group more reliably with a block compound.
- the amount of the acid curing agent A contained in the injection 100 is preferably about 0.1 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the acid curable resin B, and 0.5 parts by mass. As mentioned above, it is more preferable that it is about 15 mass parts or less, and it is still more preferable that it is about 1 mass part or more and about 10 mass parts or less.
- the compound (block compound) which has reactivity with the acidic group provided in the acid curing agent A blocks the acidic group provided in the acid curing agent A.
- the block compound has a function of preventing the acid curable resin B from being cured by the reaction between the acid curing agent A and the acid curable resin B at unnecessary portions.
- the block compound has a function of causing the acid curing agent A and the acid curable resin B to react with each other and curing the acid curable resin B by leaving the acid curing agent A at a necessary location.
- a liquid in a neutral region can be used as the fluid 20 of the injecting agent 100, and the load on the environment can be reduced. Furthermore, when filling the injection 100 into the crack, there is also an advantage that the pipeline through which the injection 100 passes can be reliably prevented from being acid-corroded.
- Such a block compound has a functional group, and the functional group chemically bonds to an acid group included in the acid curing agent A, thereby blocking the acid curing agent.
- the functional group may be any group capable of reacting with an acidic group and linking (chemically bonding) the block compound to the acid curing agent A.
- the functional group include one type or a combination of two or more types such as a hydroxyl group and an amino group.
- the block compound having such a functional group has excellent reactivity with respect to the acidic group of the acid curing agent A. For this reason, the functional group and the acidic group can be reacted (chemically bonded) to reliably block the acid curing agent A with the block compound.
- Examples of the block compound having a hydroxyl group as a functional group include alcohols and phenols.
- Examples of alcohols include monohydric alkyl alcohols, alkyl alcohols such as polyhydric alkyl alcohols, alkenyl alcohols, aromatic alcohols, and heterocyclic ring-containing alcohols. Among these, alkyl alcohol is preferable as the block compound having a hydroxyl group. As a result, the acid curing agent A can be more reliably blocked with the block compound.
- a monovalent alkyl alcohol having a linear alkyl group linear monovalent alkyl alcohol
- a monovalent alkyl alcohol having a branched alkyl group branched type monohydric alcohol
- a monovalent alkyl alcohol having a cyclic alkyl group a monovalent alkyl alcohol having a linear alkyl group
- branched type monohydric alcohol branched type monohydric alcohol
- examples of the linear or branched monohydric alkyl alcohol include propanol such as methanol, ethanol, 1-propanol and 2-propanol, 1-butanol, 2-butanol, 2-methyl- 1-propanol, butanol such as 2-methyl-2-propanol, 1-pentanol, 2-pentanol, 3-pentanol, 2-methyl-1-butanol, 3-methyl-1-butanol, 2-methyl -2-butanol, pentanol such as 2,2-dimethyl-1-propanol, 1-hexanol, 2-hexanol, 3-hexanol, 2-methyl-1-pentanol, 2-methyl-2-pentanol, 2-methyl-3-pentanol, 3-methyl-1-pentanol, 3-methyl-2-pentanol, 3- Til-3-pentanol, 4-methyl-1-pentanol, 4-methyl-1-pentanol, 4-methyl-1-pentan
- cyclic monohydric alkyl alcohol examples include, for example, cyclopentanol, cycloheptanol, methylcyclopentanol, cyclopentylmethanol, cyclohexylmethanol, 1-cyclohexylethanol, 2-cyclohexylethanol, 3- Cyclohexylpropanol, 4-cyclohexylbutanol, cyclohexanol, methylcyclohexanol, dimethylcyclohexanol, tetramethylcyclohexanol, hydroxycyclohexanol, (1S, 2R, 5S) -2-isopropyl-5-methylcyclohexanol, butylcyclohexanol, And cyclohexanols such as 4-t-butylcyclohexanol, and one or more of these are combined. It can be used together.
- examples of the polyhydric alkyl alcohol include divalent alcohols such as ethylene glycol (1,2-ethanediol), 1,2-propanediol and 1,3-propanediol, trivalent alcohols such as glycerin, Examples include tetravalent alcohols such as pentaerythritol, and one or more of these can be used in combination.
- a sulfonic acid ester bond is formed with the block compound whose functional group is a hydroxyl group, whereby the acid curing agent A is blocked. Blocked with compound. That is, a sulfonic acid ester is formed as the acid curing agent A in which the acidic group is blocked by the block compound.
- examples of the block compound having an amino group as a functional group include alkylamines such as monovalent alkylamines and polyvalent alkylamines, alkenylamines, aromatic amines, and heterocyclic-containing amines.
- alkylamine is preferable as the block compound having an amino group. As a result, the acid curing agent A can be more reliably blocked with the block compound.
- Examples of the monovalent alkylamine include hexylamine, heptylamine, octylamine, nonylamine, decylamine, undecylamine, dodecylamine, tridecylamine, tetradecylamine, pentadecylamine, hexadecylamine, octadecylamine, Monoalkylamines such as isopropylamine, isoamylamine, 3,3-dimethylbutylamine; N-ethylbutylamine, dibutylamine, dipentylamine, dihexylamine, diheptylamine, dioctylamine, dinonylamine, didecylamine, N-methylcyclohexylamine, Dialkylamines such as dicyclohexylamine; trimethylamine, triethylamine, tripropylamine, tributylamine, trioctylamine Trialkyl
- polyvalent alkylamine examples include diamines such as ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine, tetraethylenepentamine, pentaethyleneexamine, and triamines such as bis (hexamethylene) triamine. One or more of these can be used in combination.
- the acid curing agent A whose acidic group is a sulfonic acid group
- a salt is formed by neutralization (ionic bond) between the functional group and a block compound whose basic group is a basic amino group.
- the acid curing agent A is blocked with the block compound. That is, a sulfonic acid amine salt is formed as the acid curing agent A in which the acidic group is blocked by the block compound.
- the number of acidic groups included in the acid curing agent A is 1, the number of functional groups in the acid curing agent-containing material (each particle 10) is 0.1 to 1.9.
- the acid curing agent is preferably contained in the acid curing agent-containing material so as to be 0.3 to 1.7, and more preferably 0.5 to 1.5. More preferably, it is contained in the inclusion.
- curing agent A by which the acidic group was blocked with the block compound is not specifically limited.
- the acid curing agent A is a carboxylic acid having a carboxyl group and the block compound is an alcohol or phenol having a hydroxyl group
- carboxylic acid and alcohol or phenol are mixed and concentrated sulfuric acid or the like is added.
- a dehydration condensation reaction occurs, and a carboxylic acid ester that is an acid curing agent A in which an acidic group is blocked can be generated.
- the acid curing agent A is a sulfonic acid having a sulfonic acid group and the block compound is an alcohol or phenol having a hydroxyl group
- the acid curing agent A is a sulfonic acid having a sulfonic acid group and the block compound is an alcohol or phenol having a hydroxyl group
- sulfonic acid chloride and alcohol or phenol are combined with pyridine or the like.
- the sulfonic acid ester which is the acid hardening agent A by which the acidic group was blocked can be produced
- the acid curing agent A is a carboxylic acid having a carboxyl group or a sulfonic acid having a sulfonic acid group and the block compound is an amine having an amino group, for example, a carboxylic acid or sulfonic acid and an amine
- a neutralization reaction occurs, and a salt of a carboxylic acid or a sulfonic acid salt that is the acid curing agent A in which an acidic group is blocked can be generated.
- the acid curing agent-containing material of the present invention is composed of particles 10 composed of polyester contained as a main material and acid curing agent A in which acidic groups dispersed in the polyester are blocked. Is configured.
- the acid curing agent A and the acid curable resin B are separated in each particle 10 by dispersing the acid curing agent A in which the acidic group is blocked in the polyester. Exists. Further, as the polyester contained in each particle 10, a polyester that is hydrolyzed under a predetermined condition is selected.
- each particle 10 cannot maintain its shape due to the hydrolysis of the polyester at a required location (that is, a crack formed in the underground layer).
- the acid curing agent is contained in each particle 10.
- the acid curing agent A is dispersed in the polyester in each particle 10 at an unnecessary portion, so that the function (reactivity) for curing the acid curable resin B is inactivated, and the necessary portion. Then, the acid curable resin B can be cured by leaving the particles 10.
- the polyester exhibits a function of delaying the reaction between the acid curing agent A and the acid curable resin B.
- the release of the block may occur before the acid curing agent A is detached from each particle 10 or may occur after the acid curing agent A is separated from each particle 10. That is, the release of the block may be generated at the time when the acid curing agent A and the acid curable resin B contact (react).
- a liquid in a neutral region can be used as the fluid 20 of the injecting agent 100, and the load on the environment can be reduced. Furthermore, when filling the injection 100 into the crack, there is also an advantage that the pipeline through which the injection 100 passes can be reliably prevented from being acid-corroded.
- Such particles 10 are designed such that their shape can no longer be maintained under conditions of pressure 6,000 psi and temperature 30-120 ° C., more preferably pressure 6,000 psi and temperature 50-100 ° C. By designing in such a condition, the particle 10 can no longer maintain its shape even in an underground layer located at a relatively shallow location, and the acid curing agent A is easily released. For this reason, the injection agent (resin composition) 100 containing such particles 10 can be suitably used when recovering hydrocarbons from the underground layer.
- the polyester contained as the main material of the particles 10 is preferably hydrolyzed in water at 80 ° C. within 5 days, and hydrolyzed in water at 80 ° C. for 2 hours or more and within 2 days. More preferred.
- the term “polyester is hydrolyzed” means that a decrease in the molecular weight, strength, weight in water, etc. of the polyester is recognized significantly. By using polyester that hydrolyzes under such conditions, it is possible to prevent the particles 10 from maintaining their shape under the conditions of temperature and pressure as described above.
- the weight average molecular weight of the polyester is preferably about 1,000 to 500,000, more preferably about 5,000 to 300,000.
- a sufficient mechanical strength can be imparted to the particles 10 by forming the particles 10 using a polyester having a weight average molecular weight within the above range.
- the shape of the particles 10 cannot be maintained under the conditions of the pressure of 6,000 psi and the temperature of 30 to 120 ° C. as described above. Can be easily provided.
- the amount of the acid curing agent A in which the acidic group contained in each particle 10 is blocked is preferably 0.1 parts by mass or more and 300 parts by mass or less with respect to 100 parts by mass of the polyester. More preferably, it is at least 100 parts by mass.
- the average particle size of the particles 10 is preferably about 0.1 ⁇ m or more and 125 ⁇ m or less, more preferably about 0.1 ⁇ m or more and 100 ⁇ m or less, and about 0.1 ⁇ m or more and 75 ⁇ m or less. Is more preferable. By setting the average particle size within such a range, the particles 10 can be more uniformly dispersed in the infusate 100. Further, when the particle 10 can no longer maintain its shape, the acid curing agent A can be more reliably detached from each particle 10, and the acid curing agent A and the acid curable resin B are brought into contact with each other. Can be made.
- the polyester contained as the main material of the particle 10 is not particularly limited, and examples thereof include polyglycolic acid (PGA), polylactic acid, polybutylene succinate, polyethylene succinate, polycaprolactone, polyethylene terephthalate, and polyethylene naphthalate. , Polypropylene terephthalate, polybutylene terephthalate, polyethylene diphenylate and the like.
- the polyester can be used alone or in combination of two or more selected from the group consisting of these substances.
- Such a polyester is preferably a biodegradable polyester.
- Biodegradable polyester is a preferable substance because it is decomposed with time in the ground (in the underground layer) and thus has extremely high environmental safety.
- the biodegradable polyester is preferably at least one selected from the group consisting of polyglycolic acid, polylactic acid, polybutylene succinate, polyethylene succinate, and polycaprolactone, and more preferably polyglycolic acid.
- Polyglycolic acid is a linear aliphatic polyester and has a structure containing an ester bond in its main chain.
- the particles 10 composed of polyglycolic acid as a main material have excellent strength under conditions of no pressure and / or heating. For this reason, this particle
- polyglycolic acid is easily hydrolyzed under pressurized and / or heated conditions. For this reason, it becomes impossible for the particle
- the acid curing agent A is formed by the synergistic action of blocking the acid curing agent A with the blocking compound and dispersing the acid curing agent A in which the acidic group is blocked into the polyester.
- the function (reactivity) for curing the acid curable resin B is inactivated at unnecessary portions, while the acid curable resin B can be cured at necessary portions.
- the acid curable resin B is separated from the particles 10 and the acid curing agent A (an unblocked body of the acid curing agent A) that has been deblocked by the block compound. It is preferable to cure at a temperature of 100 ° C. or less, more preferably at a temperature of 75 ° C. or less, and even more preferably at a temperature of 25 ° C. (room temperature) or less.
- the injecting agent (resin composition) 100 can be particularly suitably used when recovering hydrocarbons from an underground layer located at a relatively shallow location.
- the acid curing agent of the acid curing agent A and the acid curable resin B is used as the injection agent 100.
- the acidic group with which A is provided is blocked with a blocking compound, and the acid curing agent A in which the acidic group is blocked is present in the state of being dispersed in the polyester in the particles 10. For this reason, before the block compound is detached from the acid curing agent A, or before the particles 10 cannot maintain the shape thereof, the curing of the acid curable resin B can be accurately prevented.
- the acid curable resin B examples include furan resins, phenol resins, melamine resins, urea resins, oxetane resins, and the like, and these can be used alone or in combination.
- the acid curable resin B includes at least one selected from the group consisting of a furan resin and a phenol resin.
- These acid curable resins are particularly suitable for use in the present invention because they are easily cured at a temperature of about room temperature in the presence of an acid such as acid curing agent A (acidic group included in acid curing agent A). . Further, by using these resins, particularly high mechanical strength can be imparted to the surface layer 3 covering the particles 2 formed of the cured product.
- furan resin examples include furfural resin, furfural phenol resin, furfural ketone resin, furfuryl alcohol resin, furfuryl alcohol phenol resin, and the like.
- phenol resins include resol type phenol resins, alkylene etherized resole type phenol resins, dimethylene ether type phenol resins, aminomethyl type phenol resins, novolac type phenol resins, aralkyl type phenol resins, dicyclopentadiene type phenol resins, and the like. It is done.
- the amount of the resin composition contained in the injection 100 is preferably about 1 part by mass or more and 20 parts by mass or less, preferably about 1 part by mass or more and 15 parts by mass or less with respect to 100 parts by mass of the particles 2. More preferably, it is about 5 parts by mass or more and 15 parts by mass or less. If the infusate 100 contains the resin composition in an amount in the above range, when the particles 2 are filled in the cracks formed in the underground layer, the outer layer of the most particles 2 is surely covered with the surface layer (coating Layer) 3 can be formed.
- the viscosity at 25 ° C. of the fluid 20 is preferably about 10 mPa ⁇ s to 500 mPa ⁇ s, more preferably about 15 mPa ⁇ s to 300 mPa ⁇ s, more preferably 20 mPa ⁇ s to 100 mPa ⁇ s. More preferably, it is about s or less.
- Such a fluid 20 preferably contains water as a main component and a compound such as a gelling agent and an electrolyte. By using such a compound, the viscosity of the fluid 20 can be easily and reliably adjusted to a value in the above range.
- polysaccharides such as cellulose, guar gum or derivatives thereof (hydroxyethyl derivative, carboxymethylhydroxyethyl derivative, hydroxypropyl derivative) are preferably used.
- the weight average molecular weight of such a polysaccharide is preferably about 100,000 or more and 5,000,000 or less, and more preferably about 500,000 or more and 3,000,000 or less.
- examples of the electrolyte include sodium chloride, potassium chloride, ammonium chloride, calcium chloride and the like.
- the fluid 20 can also be adjusted by adding a gelling agent etc. to the electrolyte aqueous solution (for example, seawater, a brine solution) which exists naturally.
- the manufacturing method of the injection 100 in the present embodiment is prepared by preparing the acid curing agent A in which an acidic group is blocked with a blocking compound and polyester, and kneading by melt-kneading the acid curing agent A and polyester.
- a kneading step of obtaining a product, a kneading step of solidifying the kneaded product to obtain a solidified product, and then pulverizing the solidified product to obtain a plurality of particles 10, and the particles 10, particles 2, and particulate acid It has the mixing process of obtaining the injection 100 by mixing the curable resin B and the fluid 20.
- Preparation process the constituent material of the particle 10 described above, that is, the acid curing agent A in which the acidic group is blocked and the polyester are prepared, and a predetermined amount is prepared by weighing each.
- Kneading process these are prepared by mixing (dispersing and mixing), heating and melting and kneading (melting and kneading) the polyester with the acid curing agent A in which the acidic group is blocked with the block compound prepared in the preparation step. A kneaded product is obtained.
- a mixture is prepared by blending a predetermined amount of acid curing agent A in which an acidic group is blocked and a predetermined amount of polyester. Then, this mixture is uniformly pulverized and mixed (dispersed and mixed) at room temperature using, for example, a mixer, a jet mill, a ball mill, or the like.
- the mixture is melted and heated using a kneader and kneaded (melt kneading) to obtain a kneaded product.
- the kneader is not particularly limited, and for example, an extruder such as a heating roll, a kneader, and a twin-screw extrusion kneader can be used.
- the temperature at which the mixture is melted (heating temperature) varies slightly depending on the constituent material of the mixture, but is usually preferably set to 140 ° C. or higher and 290 ° C. or lower, more preferably 180 ° C. or higher and 240 ° C. or lower. .
- the acid curing agent A in which the acidic group is blocked and the polyester while accurately suppressing or preventing the detachment of the blocking compound from the acid curing agent A in which the acidic group is blocked and the hydrolysis of the polyester. Both can be in a molten state. For this reason, it is possible to reliably obtain a kneaded product in which the acid curing agent A in which the acidic group is blocked and the polyester are uniformly dispersed.
- the temperature at the time of melting a mixture means the temperature of the screw part with which a biaxial extrusion kneader is equipped.
- a kneaded product instead of obtaining the kneaded product through the above steps ⁇ 1> and ⁇ 2>, for example, acidic groups are blocked in the polyester that has been melted by heating. After adding the acid curing agent A, a kneaded product may be obtained by kneading them.
- the kneaded product can be pulverized by using at least one external force selected from the group consisting of compression, impact, shear and friction (grinding). More specifically, for pulverization of the kneaded product, for example, a wing mill (manufactured by Sanjo Industry Co., Ltd.), a mighty mill (manufactured by Sanjo Industry Co., Ltd.), a jet mill or the like; an oscillating ball mill, continuous rotation Ball mills such as ball mills and batch ball mills; pot mills such as wet pot mills and planetary pot mills; hammer mills; pin mills; roller mills and the like can be used alone or in combination.
- a wing mill manufactured by Sanjo Industry Co., Ltd.
- a mighty mill manufactured by Sanjo Industry Co., Ltd.
- a jet mill or the like an oscillating ball mill, continuous rotation Ball mills such as ball mills and batch ball mills
- pot mills such as wet pot mills and planetary
- a jet mill, a ball mill, a pot mill, a hammer mill and a pin mill are preferably used for pulverization of the kneaded product, and a jet mill having waste heat means is more preferably used.
- a jet mill having waste heat means is more preferably used.
- the temperature at which the kneaded product is pulverized to obtain the particles 10 is preferably 40 ° C. or lower, more preferably 10 to 30 ° C. Thereby, it is possible to reliably prevent the particles 10 obtained by pulverizing the kneaded material from being melted and agglomerating adjacent particles 10 to form lumps (aggregates). For this reason, the particle
- coolants such as liquid nitrogen and dry ice, etc. are mentioned.
- the temperature at which the kneaded product is pulverized to obtain the particles 10 is the temperature immediately after the kneaded product is pulverized.
- the particles 10 can be obtained through the above preparation process, kneading process and pulverization process. That is, the preparation method, kneading step, and pulverizing step as described above constitute the method for producing an acid curing agent-containing material of the present invention.
- the injection agent 100 is obtained by mixing the particles 10 obtained in the pulverization step, the particles 2, the acid curable resin B, and the fluid 20.
- the particles 10 obtained in the pulverization step, the particles 2, the acid curable resin B, and the fluid 20 are prepared, and each of these is weighed in a predetermined amount, and then mixed using, for example, a mixer. Thereby, the injection 100 in which the particles 10, the particles 2, and the acid curable resin B are uniformly dispersed in the fluid 20 can be obtained.
- the order of adding the particles 10, the particles 2, the acid curable resin B, and the fluid 20 is not particularly limited. As this order, for example, after mixing the particle 10 and the acid curable resin B, the particle 2 is added, and the fluid 20 is further added. The particle 10, the particle 2, and the acid curable resin B are mixed. After that, the order of adding the fluid 20 can be selected. Thereby, the mixed (dispersed) state of the particles 10 and the acid curable resin B and the covering state of the particles 2 with the acid curable resin B can be controlled.
- the addition of the particles 2 and the fluid 20 can be omitted. That is, the resin composition can be obtained by mixing the particles 10 and the acid curable resin B.
- FIG. 4 is a conceptual diagram for explaining a method of recovering hydrocarbons from the underground layer.
- a drilling hole 91 is dug in the vertical direction from the surface S to the target underground layer L containing hydrocarbons. Thereafter, when the excavation hole 91 reaches the underground layer L, the excavation direction is changed and the excavation hole 91 is dug in a horizontal direction within the underground layer L by a predetermined distance.
- the injection 100 as described above is injected into the underground layer L through the excavation hole 91 at a predetermined speed and pressure. At this time, the injecting agent 100 is injected into each crack 92, and each crack 92 is filled with a plurality of particles 2.
- the block compound is released from the acid curing agent A and the shape of the particles 10 can be maintained due to the pressure and / or the temperature in the ground when the injecting agent 100 is injected into the crack 92.
- the acid curing agent A is released from the particles 10.
- the acid curing agent A leaves the particle 10 and comes into contact with the acid curable resin B.
- the acid curing agent A and the acid curable resin B are react.
- the acid curable resin B is cured by the action of the acid curing agent A, and the outer surface of the particle 2 is coated with the cured product, whereby the coated particle 1 is generated.
- the block compound does not leave the acid hardening agent A, and the acid hardening agent A
- the acid curing agent A in which the acidic group is blocked is maintained in each particle 10 while maintaining the state in which the acidic group is blocked with the blocking compound and maintaining the shape of the particle 10. Designed to remain dispersed in the polyester. Only after the conditions such as temperature and pressure when injected into the crack 92, the block compound is designed to be detached from the acid curing agent, and further, the particle 10 is designed to be unable to maintain its shape. .
- the acid curing agent A is blocked by the blocking compound, and in each particle 10, the acid curing agent A in which the acidic group is blocked is dispersed in the polyester. Therefore, curing of the acid curable resin B is prevented.
- the acid curing agent A and the acid curable resin B react with each other due to separation of the block compound and separation of the acid curing agent A from the particles 10. Then, the curing of the acid curable resin B starts.
- the cracks 92 can be prevented from being blocked by the underground pressure by filling the cracks 92 with the coated particles 1. Thereby, the inflow efficiency of hydrocarbons from the underground layer L into the excavation hole 91 can be increased, and the recovery efficiency of hydrocarbons can be improved.
- each constituent material can be replaced with an arbitrary one that can exhibit the same function, or an arbitrary constituent material can be added.
- one or more optional steps may be added as necessary.
- a twin-screw extrusion kneader manufactured by Toyo Seiki Co., Ltd.
- a pellet-like kneaded product was obtained by feeding to the feed section of “2D25S”) and performing melt kneading.
- the kneaded product is cooled with liquid nitrogen, and then pulverized at a rotational speed of 12,000 rpm using a fine pulverizing apparatus (manufactured by Hadano Sangyo Co., Ltd., “Exceed Mill”). Got.
- the furfuryl alcohol resin and the particles are mixed so that the methyl p-toluenesulfonate contained in the particles is 10 parts by mass with respect to 100 parts by mass of the furfuryl alcohol resin. Obtained.
- a liquid (fluid) used in the hydraulic crushing method was mixed with sand particles having an average particle diameter of 250 ⁇ m and the obtained resin composition to prepare an injection.
- the amount of sand particles contained in the injecting agent was 9% by mass, and the amount of the resin composition contained in the injecting agent was 5 parts by mass with respect to 100 parts by mass of the sand particles.
- Example 2 As acid curing agent A in which acidic groups are blocked, p-toluenesulfonic acid amine salt (acid curing agent A blocked by forming a sulfonamide bond; “NACURE 2500” manufactured by Enomoto Kasei Co., Ltd.) is used. Except for the above, an acid curing agent-containing material, a resin composition, and an injection were prepared in the same manner as in Example 1.
- a resin composition and an injection were prepared in the same manner as in Example 1 except that the addition of polyglycolic acid (polyester) to the resin composition and the injection was omitted.
- Example 2 Evaluation of Injection Agent
- the injection solutions obtained in Example 1 and Example 2 were heated and pressurized under the conditions of a pressure of 6,000 psi and a temperature of 80 ° C., respectively.
- the acid curing agent-containing material of the present invention contains an acid curing agent having an acidic group and a polyester, and the acid curing agent is blocked by a compound in which the acidic group is reactive with the acidic group. It exists in the state of becoming. Thereby, an acid curing agent-containing material that can prepare a resin composition that can reliably cure the acid-curable resin at a target location, and an acid curing agent-containing material that can produce such an acid curing agent-containing material A method can be provided. Therefore, the present invention has industrial applicability.
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Abstract
Description
(1) 酸性基を備える酸硬化剤と、ポリエステルとを含有し、
前記酸硬化剤は、その前記酸性基が、該酸性基に対して反応性を有する化合物によりブロック化された状態で存在していることを特徴とする酸硬化剤含有物。
各前記粒子は、前記酸硬化剤が分散した前記ポリエステルで形成されている上記(1)に記載の酸硬化剤含有物。
ブロック化された状態の前記酸硬化剤と、前記ポリエステルとを準備する準備工程と、
前記酸硬化剤と前記ポリエステルとを溶融混練することにより混練物を得る混練工程と、
前記混練物を固化させて固化物とした後に、前記固化物を粉砕することにより複数の粒子を得る粉砕工程とを有することを特徴とする酸硬化剤含有物の製造方法。
図1は、本発明の酸硬化剤含有物を含む注入剤の実施形態を示す図、図2は、図1の注入剤に含まれる粒子が酸硬化性樹脂の硬化物で被覆された被覆粒子を示す部分断面図、および、図3は、図2に示す被覆粒子に圧力が付与された状態を示す部分断面図である。
本実施形態における注入剤100の製造方法は、ブロック化合物で酸性基がブロック化された酸硬化剤Aと、ポリエステルとを準備する準備工程と、酸硬化剤Aとポリエステルと溶融混練することにより混練物を得る混練工程と、この混練物を固化させて固化物とした後に、固化物を粉砕することにより複数の粒子10を得る粉砕工程と、この粒子10と、粒子2と、粒子状の酸硬化性樹脂Bと、流体20とを混合することにより注入剤100を得る混合工程とを有している。
(準備工程)
本工程では、上述した粒子10の構成材料、すなわち、酸性基がブロック化された酸硬化剤Aとポリエステルとを用意し、それぞれ秤量することにより所定量を準備する。
(混練工程)
本工程では、準備工程で準備されたブロック化合物で酸性基がブロック化された酸硬化剤Aと、ポリエステルとを混合(分散混合)、加熱溶融、混練すること(溶融混練すること)により、これらの混練物を得る。
<1> まず、所定量の酸性基がブロック化された酸硬化剤Aと、所定量のポリエステルとを配合することで混合物を調製する。そして、この混合物を、例えば、ミキサー、ジェットミルおよびボールミル等を用いて、常温で均一に粉砕、混合(分散混合)する。
本工程では、混練工程で得られた前記混練物を冷却して固化させて固化物とした後に、この固化物を粉砕することにより、粒子10を得る。
本工程では、粉砕工程で得られた粒子10と、粒子2と、酸硬化性樹脂Bと、流体20とを混合することにより注入剤100を得る。
図4は、地下層から炭化水素を回収する方法を説明するための概念図である。
1.酸硬化剤含有物、樹脂組成物および注入剤の作製
[実施例1]
まず、酸性基がブロック化された酸硬化剤Aとして、p-トルエンスルホン酸メチル(スルホン酸エステル結合を形成することによりブロック化された酸硬化剤A;和光純薬工業社製)と、酸硬化性樹脂Bとして、フルフリルアルコール樹脂と、ポリエステルとしてポリグリコール酸(クレハ社製、「Kuredux」)とをそれぞれ用意した。
酸性基がブロック化された酸硬化剤Aとして、p-トルエンスルホン酸アミン塩(スルホンアミド結合を形成することによりブロック化された酸硬化剤A;楠本化成社製、「NACURE 2500」)を用いたこと以外は、前記実施例1と同様にして、酸硬化剤含有物、樹脂組成物および注入剤を作製した。
樹脂組成物および注入剤へのポリグリコール酸(ポリエステル)の添加を省略したこと以外は、前記実施例1と同様にして、樹脂組成物および注入剤を作製した。
2-1.樹脂組成物の評価
得られた実施例1および比較例の樹脂組成物のそれぞれに水を添加し、この状態で、各樹脂組成物を温度80℃および60℃で加熱した。その後、各樹脂組成物の硬化の度合いを触診にて評価した。
得られた実施例1および実施例2の注入剤を、それぞれ、圧力6,000psiかつ温度80℃の条件で加熱・加圧した。
Claims (18)
- 酸性基を備える酸硬化剤と、ポリエステルとを含有し、
前記酸硬化剤は、その前記酸性基が、該酸性基に対して反応性を有する化合物によりブロック化された状態で存在していることを特徴とする酸硬化剤含有物。 - 当該酸硬化剤含有物は、複数の粒子で構成され、
各前記粒子は、前記酸硬化剤が分散した前記ポリエステルで形成されている請求項1に記載の酸硬化剤含有物。 - 前記ポリエステルは、生分解性ポリエステルである請求項1または2に記載の酸硬化剤含有物。
- 前記生分解性ポリエステルは、ポリグリコール酸、ポリ乳酸、ポリブチレンサクシネート、ポリエチレンサクシネートおよびポリカプロラクトンからなる群から選ばれる少なくとも1種である請求項3に記載の酸硬化剤含有物。
- 前記ポリエステルは、80℃の水中で、5日以内で加水分解する請求項1ないし4のいずれか1項に記載の酸硬化剤含有物。
- 前記ポリエステルの重量平均分子量は、1,000以上、500,000以下である請求項1ないし5のいずれか1項に記載の酸硬化剤含有物。
- 前記化合物は、官能基を備え、該官能基が前記酸硬化剤の前記酸性基に化学結合することで、前記酸硬化剤がブロック化されている請求項1ないし6のいずれか1項に記載の酸硬化剤含有物。
- 前記化合物の前記官能基は、水酸基およびアミノ基よりなる群から選択される少なくとも1種を含む請求項7に記載の酸硬化剤含有物。
- 前記化合物は、前記官能基として水酸基を備えるアルキルアルコールである請求項7または8に記載の酸硬化剤含有物。
- 前記アルキルアルコールは、一価アルキルアルコールである請求項9に記載の酸硬化剤含有物。
- 前記化合物は、前記官能基としてアミノ基を備えるアルキルアミンである請求項7または8に記載の酸硬化剤含有物。
- 前記化合物は、前記酸硬化剤の前記酸性基の数を1としたとき、その前記官能基の数が0.1~1.9となるように、当該酸硬化剤含有物中に含まれている請求項1ないし11のいずれか1項に記載の酸硬化剤含有物。
- 前記酸硬化剤の前記酸性基は、スルホン酸基を含む請求項1ないし12のいずれか1項に記載の酸硬化剤含有物。
- 前記酸硬化剤は、p-トルエンスルホン酸、ベンゼンスルホン酸、ドデシルベンゼンスルホン酸、フェノールスルホン酸、ナフタレンスルホン酸、ジノニルナフタレンスルホン酸およびジノニルナフタレンジスルホン酸よりなる群から選択される少なくとも1種を含む請求項13に記載の酸硬化剤含有物。
- 当該酸硬化剤含有物は、地下層中に形成された亀裂に充填される粒子の外表面の少なくとも一部を被覆する表面層を形成するための樹脂組成物を調製するのに用いられる請求項1ないし14のいずれか1項に記載の酸硬化剤含有物。
- 請求項1ないし15のいずれか1項に記載の酸硬化剤含有物の製造方法であって、
ブロック化された状態の前記酸硬化剤と、前記ポリエステルとを準備する準備工程と、
前記酸硬化剤と前記ポリエステルとを溶融混練することにより混練物を得る混練工程と、
前記混練物を固化させて固化物とした後に、前記固化物を粉砕することにより複数の粒子を得る粉砕工程とを有することを特徴とする酸硬化剤含有物の製造方法。 - 前記混練工程における加熱温度は、130℃以上、250℃以下である請求項16に記載の酸硬化剤含有物の製造方法。
- 前記混練工程において、前記酸硬化剤を、前記ポリエステル100質量部に対して0.1質量部以上、300質量部以下となるように添加する請求項16または17に記載の酸硬化剤含有物の製造方法。
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US14/907,907 US20160168450A1 (en) | 2013-07-26 | 2014-07-23 | Acid curing agent inclusion and method for producing acid curing agent inclusion |
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JP2014141552A (ja) * | 2013-01-22 | 2014-08-07 | Sumitomo Bakelite Co Ltd | 樹脂組成物、注入剤および充填方法 |
JP2014141555A (ja) * | 2013-01-22 | 2014-08-07 | Sumitomo Bakelite Co Ltd | 樹脂組成物、注入剤および充填方法 |
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2014
- 2014-07-23 US US14/907,907 patent/US20160168450A1/en not_active Abandoned
- 2014-07-23 JP JP2015528313A patent/JPWO2015012319A1/ja active Pending
- 2014-07-23 WO PCT/JP2014/069478 patent/WO2015012319A1/ja active Application Filing
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JPS61196096A (ja) * | 1985-02-25 | 1986-08-30 | ソシエテ・フランセ−ズ・ヘキスト | 地を充填または強化するための注入組成物 |
JPH0586297A (ja) * | 1991-09-27 | 1993-04-06 | Nippon Oil & Fats Co Ltd | 含フツ素系熱硬化性組成物 |
JPH07238241A (ja) * | 1994-02-10 | 1995-09-12 | Cytec Technol Corp | ちりめん仕上げの粉末状塗料 |
JPH07331166A (ja) * | 1994-06-03 | 1995-12-19 | Toyo Ink Mfg Co Ltd | ポリエステルフィルム被覆絞り缶用水性塗料組成物 |
JP2007509202A (ja) * | 2003-10-17 | 2007-04-12 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | ツートン仕上げを得るために有用な改善された耐チップ性プライマー組成物 |
JP2005288963A (ja) * | 2004-04-02 | 2005-10-20 | Kobe Steel Ltd | 樹脂塗装金属板 |
JP2014141552A (ja) * | 2013-01-22 | 2014-08-07 | Sumitomo Bakelite Co Ltd | 樹脂組成物、注入剤および充填方法 |
JP2014141555A (ja) * | 2013-01-22 | 2014-08-07 | Sumitomo Bakelite Co Ltd | 樹脂組成物、注入剤および充填方法 |
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