CN113354303B - Resin fiber and method for producing the same - Google Patents
Resin fiber and method for producing the same Download PDFInfo
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- CN113354303B CN113354303B CN202010153460.3A CN202010153460A CN113354303B CN 113354303 B CN113354303 B CN 113354303B CN 202010153460 A CN202010153460 A CN 202010153460A CN 113354303 B CN113354303 B CN 113354303B
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- 229920005989 resin Polymers 0.000 title claims abstract description 175
- 239000011347 resin Substances 0.000 title claims abstract description 175
- 239000000835 fiber Substances 0.000 title claims abstract description 147
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 239000005011 phenolic resin Substances 0.000 claims abstract description 44
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 42
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000003822 epoxy resin Substances 0.000 claims abstract description 36
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 36
- 238000005507 spraying Methods 0.000 claims abstract description 33
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 25
- 230000009471 action Effects 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 19
- 238000007596 consolidation process Methods 0.000 claims abstract description 18
- 238000005553 drilling Methods 0.000 claims abstract description 12
- 239000000243 solution Substances 0.000 claims description 105
- 238000003756 stirring Methods 0.000 claims description 33
- 238000006243 chemical reaction Methods 0.000 claims description 31
- 239000002904 solvent Substances 0.000 claims description 29
- 239000007921 spray Substances 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 229920002748 Basalt fiber Polymers 0.000 claims description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 6
- 239000004841 bisphenol A epoxy resin Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 6
- 239000004917 carbon fiber Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 6
- 239000011733 molybdenum Substances 0.000 claims description 6
- WAKMOVBCOYGSDK-UHFFFAOYSA-N phenol;triazine Chemical compound C1=CN=NN=C1.OC1=CC=CC=C1 WAKMOVBCOYGSDK-UHFFFAOYSA-N 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 229910052788 barium Inorganic materials 0.000 claims description 5
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 5
- 239000003208 petroleum Substances 0.000 claims description 5
- -1 polypropylene Polymers 0.000 claims description 5
- 229920000768 polyamine Polymers 0.000 claims description 4
- 229920006295 polythiol Polymers 0.000 claims description 4
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000004842 bisphenol F epoxy resin Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 22
- 238000002360 preparation method Methods 0.000 abstract description 15
- 239000002245 particle Substances 0.000 abstract description 10
- 230000000052 comparative effect Effects 0.000 description 10
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 9
- PXKLMJQFEQBVLD-UHFFFAOYSA-N bisphenol F Chemical compound C1=CC(O)=CC=C1CC1=CC=C(O)C=C1 PXKLMJQFEQBVLD-UHFFFAOYSA-N 0.000 description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 5
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000006068 polycondensation reaction Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000007171 acid catalysis Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- XMYHHSMIUHHPEW-UHFFFAOYSA-N azane;molybdenum Chemical compound N.[Mo] XMYHHSMIUHHPEW-UHFFFAOYSA-N 0.000 description 1
- RQPZNWPYLFFXCP-UHFFFAOYSA-L barium dihydroxide Chemical compound [OH-].[OH-].[Ba+2] RQPZNWPYLFFXCP-UHFFFAOYSA-L 0.000 description 1
- 229910001863 barium hydroxide Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- PDKHNCYLMVRIFV-UHFFFAOYSA-H molybdenum;hexachloride Chemical compound [Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Cl-].[Mo] PDKHNCYLMVRIFV-UHFFFAOYSA-H 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/12—General methods of coating; Devices therefor
- C03C25/14—Spraying
- C03C25/146—Spraying onto fibres in suspension in a gaseous medium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
- C03C25/32—Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C03C25/34—Condensation polymers of aldehydes, e.g. with phenols, ureas, melamines, amides or amines
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/24—Coatings containing organic materials
- C03C25/26—Macromolecular compounds or prepolymers
- C03C25/32—Macromolecular compounds or prepolymers obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C03C25/36—Epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
- C03C25/10—Coating
- C03C25/465—Coatings containing composite materials
-
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/426—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells for plugging
-
- 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
- C09K8/42—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells
- C09K8/46—Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells containing inorganic binders, e.g. Portland cement
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/39—Aldehyde resins; Ketone resins; Polyacetals
- D06M15/41—Phenol-aldehyde or phenol-ketone resins
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/55—Epoxy resins
-
- 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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/08—Fiber-containing well treatment fluids
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/40—Fibres of carbon
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- General Life Sciences & Earth Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Composite Materials (AREA)
- Inorganic Chemistry (AREA)
- Reinforced Plastic Materials (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The application discloses a resin fiber and a preparation method thereof, and belongs to the technical field of drilling and leaking stoppage. The resin fiber provided by the embodiment of the application is obtained by spraying the first resin solution and the second resin solution on the surface of the target fiber in sequence based on a multifunctional fluidized bed process. Under the action of stratum temperature of 55-130 ℃, phenolic resin and epoxy resin on the surface of target fibers react with a curing agent to generate particle adhesion, and the particles are mutually cemented to form a consolidated body with a three-dimensional network structure, so that the consolidation strength is high, the bearing and plugging capacity of a bridging structure of the plugging material is greatly improved, and the plugging efficiency is improved.
Description
Technical Field
The application relates to the technical field of well drilling plugging. In particular to a resin fiber and a preparation method thereof.
Background
Lost circulation is a common complex condition in drilling operation, and not only can the lost drilling time be consumed, the cement paste be lost, but also well collapse, drilling sticking or blowout accidents can be caused when improper treatment is carried out. The well leakage has a great influence on the well drilling operation, so that the well leakage is stopped by adopting a plugging material when the well leakage occurs, and the fiber is an important component of the plugging material.
In the related technology, the fiber is added into the substances such as the fruit shell, the mica and the like, and then the materials are compounded to prepare the plugging material, and the plugging material is pumped into a leaking layer for plugging.
However, in the related technology, the fiber and the substances are directly compounded, so that the prepared plugging material has low pressure bearing capacity, is easy to generate repeated leakage in the follow-up process, and has low plugging efficiency.
Disclosure of Invention
The embodiment of the application provides a resin fiber and a preparation method thereof, which can improve the bearing capacity of a plugging material and improve the plugging efficiency. The specific technical scheme is as follows:
in one aspect, the embodiment of the application provides a resin fiber, which is characterized in that the resin fiber is obtained by sequentially spraying a first resin solution and a second resin solution on the surface of a target fiber based on a multifunctional fluidized bed process;
the first resin solution includes: phenolic resin, epoxy resin and solvent;
the second resin solution includes: a curing agent and the solvent;
the mass ratio of the target fiber to the first resin solution is 1;
the mass ratio of the target fiber to the second resin solution is 1;
the resin fiber is a self-consolidation fiber and is suitable for the drilling and plugging of strata at the temperature of 55-130 ℃.
In another possible implementation manner, the mass percentage of the phenolic resin in the first resin solution is 23% to 47%, the mass percentage of the epoxy resin is 7% to 28%, and the mass percentage of the solvent is 30% to 50%.
In another possible implementation manner, the mass percentage of the curing agent in the second resin solution is 3% to 7%, and the mass percentage of the solvent is 93% to 97%.
In another possible implementation, the phenolic resin is at least one of a molybdenum phenolic resin, a barium phenolic resin, a phenol triazine resin, and an ammonia phenolic resin;
the epoxy resin is at least one of bisphenol A epoxy resin, bisphenol F epoxy resin, bisphenol S epoxy resin and hydroxymethyl bisphenol A epoxy resin.
In another possible implementation, the curing agent is a polyamine or a polythiol;
the solvent is one of petroleum ether, acetone, ethanol and methanol.
In another possible implementation, the target fiber is one of basalt fiber, glass fiber, carbon fiber, polypropylene fiber, or polyester fiber.
In another possible implementation, the target fiber has a length of 2 to 9mm and a thickness of 0.3 to 0.8mm.
In another aspect, an embodiment of the present application provides a method for preparing a resin fiber, where the method includes:
putting target fibers into a multifunctional fluidized bed, starting an air blower, pushing and suspending the target fibers by the air blower, wherein the air blowing speed of the air blower is 40-80 m 3 H, the air injection pressure is 0.4-0.6 MPa, the air inlet temperature is 50-100 ℃, and the air outlet temperature is 40-80 ℃;
under the action of a constant-flow pump, spraying the first resin solution on the target fiber by a high-pressure spray gun at a spray rate of 0.5-2L/h, and drying for 2-6 h to obtain a first fiber;
and spraying a second resin solution on the first fibers by the high-pressure spray gun at a liquid spraying rate of 0.2-1L/h under the action of the constant-flow pump, and drying for 1-5 h to obtain the resin fibers.
In one possible implementation, the method further includes:
adding a solvent into a first reaction container according to the mass percent of each component;
adding phenolic resin into the first reaction container, and stirring at a first stirring speed of 200-800 r/min for 10-50 min at constant temperature;
and adding epoxy resin into the first reaction container, and stirring at a second stirring speed of 100-600 r/min for 20-50 min at constant temperature to obtain the first resin solution.
In another possible implementation manner, the method further includes:
adding the solvent into a second reaction vessel according to the mass percent of each component;
and adding a curing agent into the second reaction vessel, and stirring at a third stirring speed of 200-1000 r/min for 30-60 min at a constant temperature to obtain the second resin solution.
The technical scheme provided by the embodiment of the application has the following beneficial effects:
the resin fiber provided by the embodiment of the application is obtained by spraying the first resin solution and the second resin solution on the surface of the target fiber in sequence based on a multifunctional fluidized bed process. Under the action of stratum temperature of 55-130 ℃, phenolic resin and epoxy resin on the surface of target fibers react with a curing agent to generate particle adhesion, and the particles are mutually cemented to form a consolidated body with a three-dimensional network structure, so that the consolidation strength is high, the bearing and plugging capacity of a bridging structure of the plugging material is greatly improved, and the plugging efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a multi-functional fluidized bed-based process for spraying a first resin solution onto a target fiber surface according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions and advantages of the present application more clear, the following describes the embodiments of the present application in further detail.
The embodiment of the application provides a resin fiber which is obtained by spraying a first resin solution and a second resin solution on the surface of a target fiber in sequence based on a multifunctional fluidized bed process;
the first resin solution includes: phenolic resin, epoxy resin and solvent;
the second resin solution includes: a curing agent and a solvent;
the mass ratio of the target fiber to the first resin solution is 1;
the mass ratio of the target fiber to the second resin solution is 1;
the resin fiber is self-solidifying fiber and is suitable for plugging the drilling at the temperature of 55-130 ℃.
In one possible implementation, the target fiber is one of basalt fiber, glass fiber, carbon fiber, polypropylene fiber, or polyester fiber.
In one possible implementation, the target fiber has a length of 2 to 9mm and a thickness of 0.3 to 0.8mm.
In the embodiment of the application, when target fibers are selected, the fibers to be selected are processed into 2-9 mm by considering various factors such as density, diameter, cost and the like, the fibers are respectively placed into a multifunctional fluidized bed and are fully fluidized for 15min at room temperature, the dispersion condition and the suspension condition of the fibers are observed, and one of the fibers is determined and selected according to the dispersion condition and the suspension condition. The fiber is easy to spray and high in strength, and can effectively improve the bearing capacity of the plugging material, so that the plugging efficiency is improved.
In the related technology, the fiber is directly compounded with substances such as fruit shells, mica and the like to prepare the plugging material. However, the bridging structure formed among the substances has low pressure bearing capacity, is not easy to be retained in a leakage layer under external acting force, is easy to generate repeated leakage in the follow-up process, and has low leakage stoppage efficiency.
The resin fiber provided by the embodiment of the application is obtained by spraying the first resin solution and the second resin solution on the surface of the target fiber in sequence based on a multifunctional fluidized bed process. Under the action of stratum temperature of 55-130 ℃, phenolic resin and epoxy resin on the surface of target fibers react with a curing agent to generate particle adhesion, and the particles are mutually cemented to form a consolidated body with a three-dimensional network structure, so that the consolidation strength is high, the bearing and plugging capabilities of a bridging structure of the plugging material are greatly improved, and the plugging efficiency is improved.
Compared with the related art, the dynamic filtration loss of the plugging material with the same particle size, such as shells, mica and other substances, can be reduced by about 20% by adding the resin fiber provided by the embodiment of the application.
It should be noted that, in the embodiment of the present application, the spraying order of the first resin solution and the second resin solution is not interchangeable, that is, the first resin solution must be sprayed first, and then the second resin solution must be sprayed. Because the second resin solution includes a curing agent, the curing agent needs to be in contact with liquid to react with the phenolic resin and the epoxy resin. If the curing agent is coated by the phenolic resin and the epoxy resin, the curing agent cannot contact with liquid, and the reaction of the curing agent with the phenolic resin and the epoxy resin cannot be triggered.
Introduction of the first resin solution: in a possible implementation manner, the mass percentage of the phenolic resin, the mass percentage of the epoxy resin and the mass percentage of the solvent in the first resin solution are respectively 23% to 47%, 7% to 28% and 30% to 50%.
In one possible implementation, the phenolic resin is at least one of a molybdenum phenolic resin, a barium phenolic resin, a phenol triazine resin, and an ammonia phenolic resin.
The molybdenum-containing phenolic resin is prepared by reacting molybdenum oxide, molybdenum chloride, molybdenum co-acid, phenol and formaldehyde aqueous solution in the presence of a proper catalyst and performing vacuum dehydration and polycondensation. The molybdenum phenolic resin has the advantages of scouring resistance, good strength and good manufacturability.
The barium phenolic resin is an alcohol solution of thermosetting phenolic resin prepared by condensation reaction, neutralization, filtration, dehydration and other stages of phenol and formaldehyde under the action of an alkaline catalyst barium hydroxide. The barium phenolic resin has small viscosity, high curing speed and lower molding and curing temperature.
The phenol triazine resin is a novel high-performance composite material matrix resin, has low viscosity and long gelation time, and belongs to a self-curing system.
The amino phenolic resin is obtained by polymerizing phenol with aldehyde, wherein the ortho-para position of phenolic hydroxyl on phenol has amino.
In one possible implementation, the epoxy resin is at least one of a bisphenol a type epoxy resin, a bisphenol F type epoxy resin, a bisphenol S type epoxy resin, and a hydroxymethyl bisphenol a type epoxy resin.
Bisphenol A epoxy resin is a high molecular compound prepared by condensing bisphenol A and epichlorohydrin under an alkaline condition, washing with water and removing a solvent. The bisphenol A epoxy resin can form a cured product with excellent performance with various curing agents, and has high strength and bonding strength.
The bisphenol F type epoxy resin is prepared by reacting phenol with formaldehyde under acid catalysis to generate bisphenol F, and then carrying out polycondensation reaction with epichlorohydrin in the presence of sodium hydroxide. The bisphenol F type epoxy resin has low viscosity and good impregnation property to fibers.
In the embodiment of the application, under the action of the temperature of the stratum, the phenolic resin and the epoxy resin are easy to react with the curing agent to form the self-solidified resin fiber.
In one possible implementation, the solvent is one of petroleum ether, acetone, ethanol, and methanol.
Introduction of the second resin solution: in a possible implementation manner, the mass percentage of the curing agent in the second resin solution is 3% -7%, and the mass percentage of the solvent is 93% -97%.
In one possible implementation, the curing agent is a polyamine or a polythiol. The polyamine-based curing agent and the polythiol-based curing agent can be rapidly cured at low temperature, thereby forming self-curable resin fibers.
The embodiment of the application is based on a multifunctional fluidized bed process, the resin solution is used as a coating material, and the surface treatment is carried out on the target fibers, so that the resin fibers which can be cemented together to form a stable bridging structure at the formation temperature are obtained, and the plugging efficiency is improved. In addition, the thickness of the resin coating on the surface of the target fiber can be adjusted by optimizing the concentration and the proportion of different resins and resin solutions, and the reaction temperature and the curing time of the resin fiber can be regulated and controlled, so that the requirements of different stratums are met.
In the embodiments of the present application, the mass ratio of the first resin solution to the second resin solution may be 1; the mass percentage of the phenolic resin can be 23%, 25%, 27%, 30%, 35%, 37%, 40%, 43%, 45% and 47%; the mass percentage of the epoxy resin can be 7%, 9%, 10%, 12%, 15%, 17%, 20%, 23%, 25% and 28%; the mass percentage of the solvent in the first resin solution may be 30%, 33%, 35%, 38%, 40%, 42%, 45%, 47%, 50%; the mass percentage of the curing agent can be 3%, 3.5%, 4%, 4.5%, 5%, 5.5%, 6%, 6.5% and 7%; the mass percentage of the solvent in the second resin solution may be 93%, 93.5%, 94%, 94.5%, 95%, 95.5%, 96%, 96.5%, 97%.
The resin fiber provided by the embodiment of the application is obtained by spraying the first resin solution and the second resin solution on the surface of the target fiber in sequence based on a multifunctional fluidized bed process. Under the action of stratum temperature of 55-130 ℃, phenolic resin and epoxy resin on the surface of target fibers react with a curing agent to generate particle adhesion, and the particles are mutually cemented to form a consolidated body with a three-dimensional network structure, so that the consolidation strength is high, the bearing and plugging capacity of a bridging structure of the plugging material is greatly improved, and the plugging efficiency is improved.
The embodiment of the application provides a preparation method of resin fibers, which comprises the following steps:
step 1: and putting the target fibers into the multifunctional fluidized bed, starting the air blower, and pushing and suspending the target fibers by the air blower.
The blowing rate of the blower is 40-80 m 3 The air injection pressure is 0.4-0.6 MPa, the air inlet temperature is 50-100 ℃, and the air outlet temperature is 40-80 ℃.
And 2, step: and under the action of a constant flow pump, spraying the first resin solution on the target fiber by a high-pressure spray gun at a spray rate of 0.5-2L/h, and drying for 2-6 h to obtain the first fiber.
In the step, under the action of a constant flow pump, a first resin solution is atomized into fine droplets by a high-pressure spray gun, the fine droplets are sprayed on target fibers suspended to form a fluidized state under the pushing of high-temperature air flow at a spray rate of 0.5-2L/h, and the intermittent drying time is 3-10 s.
In the spraying process, the exhaust valve and the cylinder of the multifunctional fluidized bed periodically and alternately act to uniformly spray the first resin solution on the surface of the target fiber, and the first fiber is obtained after drying for 2 to 6 hours. Referring to fig. 1, fig. 1 is a schematic view of spraying a first resin solution on a target fiber surface based on a multi-functional fluidized bed process. As can be seen from fig. 1: air enters the multifunctional fluidized bed from the air flow distribution plate after being filtered and heated, so that the basalt fibers are forced to be suspended into a fluidized state under the combined action of the pushing of air flow and the self gravity. The first resin solution enters a spray head through a constant flow pump, is atomized into fine droplets at the spray nozzle, is sprayed on the target fiber in a fluidized state, and is circulated to obtain the first fiber with a certain thickness.
In one possible implementation, the first resin solution is prepared prior to this step. The preparation process of the first resin solution comprises the following steps: adding a solvent into a first reaction vessel according to the mass percentage of each component; adding phenolic resin into the first reaction container, and stirring at a first stirring speed of 200-800 r/min for 10-50 min at constant temperature; and adding epoxy resin into the first reaction container, and stirring at a second stirring speed of 100-600 r/min for 20-50 min at constant temperature to obtain a first resin solution.
And step 3: and spraying the second resin solution on the first fiber by a high-pressure spray gun at the liquid spraying rate of 0.2-1L/h under the action of a constant flow pump, and drying for 1-5 h to obtain the resin fiber.
In the step, under the action of a constant flow pump, a second resin solution is atomized into fine droplets by a high-pressure spray gun, and the fine droplets are sprayed on the surface of the first fibers at a spray rate of 0.2-1L/h, and the intermittent drying time is 3-10 s.
And in the spraying process, the second resin solution is sprayed on the first fibers through periodic alternate actions of an exhaust valve and an air cylinder, and the resin fibers are obtained after drying for 1-5 hours. This process is similar to the process of spraying the first resin solution onto the target fiber surface in step 2, and is also based on a multi-functional fluidized bed process.
In one possible implementation, the second resin solution is prepared prior to this step. The preparation process of the second resin solution comprises the following steps: adding a solvent into a second reaction vessel according to the mass percent of each component; and adding a curing agent into the second reactor, and stirring at a third stirring speed of 200-1000 r/min for 30-60 min at a constant temperature to obtain a second resin solution.
The preparation method of the resin fiber is based on a multifunctional fluidized bed process, utilizes the multifunctional fluidized bed to atomize the first resin solution and the second resin solution, meets the fluidized target fiber suspended under the combined action of air flow and self gravity in hot air, performs surface treatment on the target fiber and dries the target fiber to form the self-consolidation resin fiber, is simple and convenient in preparation method, is environment-friendly, and can realize large-scale production.
The resin fiber prepared by the preparation method can be compounded with other plugging materials for use, and the resin fiber can be mutually bonded to form a scouring-resistant consolidated whole under the action of the formation temperature of 55-130 ℃, so that the bearing capacity of the plugging material is greatly improved, and formation fluid can be prevented from washing away other plugging materials, thereby improving the plugging effect.
The technical solution of the present invention will be described in detail by specific examples.
Example 1
In this example, the mass ratio of the target fiber to the first resin solution is 1: phenolic resin, epoxy resin and solvent.
Step 1: putting the basalt fiber with the length of 2-9 mm and the thickness of 0.3-0.8 mm into a multifunctional fluidized bed, starting an air blower, and pushing and suspending the basalt fiber through the air blower.
The blowing rate of the blower is 80m 3 The air injection pressure is 0.4MPa, the air inlet temperature is 70 ℃, and the air outlet temperature is 70 ℃.
And 2, step: spraying the first resin solution on the basalt fibers by a high-pressure spray gun at a liquid spraying rate of 1L/h under the action of a constant-flow pump, and drying for 3h to obtain first fibers.
Before the step, a first resin solution is prepared. The preparation process of the first resin solution comprises the following steps: adding 62% by mass of ethanol into a first reaction vessel; adding 28 mass percent of phenol triazine resin into a first reaction vessel, and stirring at a first stirring speed of 300r/min for 25min at a constant temperature; and adding 10% by mass of epoxy resin into the first reaction container, and stirring at a constant temperature of 200r/min for 30min to obtain a first resin solution.
And step 3: and spraying the second resin solution on the first fibers by a high-pressure spray gun under the action of a constant-flow pump at a liquid spraying rate of 0.6L/h, and drying for 2h to obtain the resin fibers.
Before the step, a second resin solution is prepared, wherein the preparation process of the second resin solution comprises the following steps: adding 95% by mass of ethanol into a second reaction vessel; and adding a curing agent with the mass percent of 5% into the second reaction vessel, and stirring at a constant temperature of 250r/min for 40min to obtain a second resin solution.
Example 2
In this example, the mass ratio of the target fiber to the first resin solution is 1: phenolic resin, epoxy resin and solvent.
Step 1: putting the glass fiber with the length of 2-9 mm and the thickness of 0.3-0.8 mm into a multifunctional fluidized bed, starting an air blower, and pushing and suspending the glass fiber by the air blower.
The blowing rate of the blower is 60m 3 The air injection pressure is 0.5MPa, the air inlet temperature is 100 ℃, and the air outlet temperature is 65 ℃.
Step 2: and spraying the first resin solution on the glass fiber by a high-pressure spray gun under the action of a constant-flow pump at a liquid spraying rate of 2L/h, and drying for 3.5h to obtain the first fiber.
Before this step, a first resin solution is prepared. The preparation process of the first resin solution comprises the following steps: adding 50% by mass of acetone into a first reaction container; adding 36 mass percent of ammonia phenolic resin into the first reaction container, and stirring at a first stirring speed of 300r/min for 40min at constant temperature; and adding 14 mass percent of bisphenol A type epoxy resin into the first reaction vessel, and stirring at a constant temperature of 200r/min for 30min to obtain a first resin solution.
And step 3: and spraying the second resin solution on the first fibers by a high-pressure spray gun under the action of a constant-flow pump at a liquid spraying rate of 0.5L/h, and drying for 1.5h to obtain the resin fibers.
Before the step, a second resin solution is prepared, wherein the preparation process of the second resin solution comprises the following steps: adding 95% by mass of acetone into the second reaction vessel; and adding a curing agent with the mass percentage of 5% into the second reaction container, and stirring at a third stirring speed of 500r/min for 30min at constant temperature to obtain a second resin solution.
Example 3
In this example, the mass ratio of the target fiber to the first resin solution is 1: phenolic resin, epoxy resin and solvent.
Step 1: putting the carbon fiber with the length of 2-9 mm and the thickness of 0.3-0.8 mm into a multifunctional fluidized bed, starting an air blower, and pushing and suspending the carbon fiber by the air blower.
The blowing rate of the blower is 80m 3 The air injection pressure is 0.5MPa, the air inlet temperature is 90 ℃, and the air outlet temperature is 55 ℃.
Step 2: and spraying the first resin solution on the carbon fibers by a high-pressure spray gun under the action of a constant-flow pump at a spray rate of 1.8L/h, and drying for 4h to obtain first fibers.
Before this step, a first resin solution is prepared. The preparation process of the first resin solution comprises the following steps: adding 48 mass percent of petroleum ether into the first reaction vessel; adding 30 mass percent of molybdenum ammonia phenolic resin into a first reaction container, and stirring at a first stirring speed of 400r/min for 30min at a constant temperature; and adding 22 mass percent of hydroxymethyl bisphenol A type epoxy resin into the first reaction container, and stirring at a second stirring speed of 300r/min for 60min at constant temperature to obtain a first resin solution.
And step 3: and spraying the second resin solution on the first fibers by a high-pressure spray gun under the action of a constant-flow pump at a liquid spraying rate of 0.9L/h, and drying for 2h to obtain the resin fibers.
Before the step, a second resin solution is prepared, wherein the preparation process of the second resin solution comprises the following steps: adding 94% by mass of petroleum ether into the second reaction vessel; and adding a curing agent with the mass percentage of 6% into the second reaction container, and stirring at a third stirring speed of 800r/min for 20min at constant temperature to obtain a second resin solution.
Comparative example 1
In this embodiment, the first resin solution is described by taking as an example that only the phenol resin and the solvent are included. Wherein the first resin solution comprises 62 mass percent of ethanol and 38 mass percent of phenol triazine resin, and the rest components and the mass percent thereof are the same as those in the embodiment 1.
Comparative example 2
In this embodiment, the first resin solution is described by taking as an example that only the phenol resin and the solvent are included. Wherein the first resin solution comprises 50 mass percent of acetone and 50 mass percent of ammonia phenolic resin, and the rest components and the mass percent thereof are the same as those in the embodiment 2.
Application example 1
A proper amount of the resin fiber prepared in the embodiment 1 is taken to be solidified after being thermally aged for 2 hours at the temperature of 80 ℃, the solidification strength is 6MPa, and the solidification strength is further improved to 10MPa along with the aging time prolonged to 5 hours. The resin fiber prepared by the embodiment of the application can form a self-solidified body at high temperature and has higher compressive strength.
The resin fibers obtained in examples 2 and 3 were measured under the above conditions in an appropriate amount, and the results were similar to those of example 1.
Application example 2
2 parts of plugging materials with the same particle size and the same proportion are prepared respectively, wherein the fiber added in the first formula is the resin fiber prepared in the example 1, the fiber added in the second formula is basalt fiber which is not sprayed with any material, and the dynamic filtration loss measurement is carried out on the 2 parts of plugging materials respectively.
The fluid loss of the formula I added with the resin fiber prepared in the example 1 is reduced by 17% compared with the fluid loss of the formula II, which shows that the resin fiber prepared in the example can play a role in improving the leakage plugging effect.
The resin fibers obtained in example 2 and example 3 were measured under the above conditions in an appropriate amount, and the results were similar to those of example 1.
Application example 3
The same mass of the resin fiber obtained in example 1 and the same mass of the resin fiber obtained in comparative example 1 were taken, and the setting times of the two resin fibers at different temperatures were measured, as shown in table 1.
The same mass of the resin fiber obtained in example 2 and the same mass of the resin fiber obtained in comparative example 2 were taken, and the setting times of the two resin fibers at different temperatures were measured, as shown in table 2.
TABLE 1
TABLE 2
It should be noted that the drilling plugging construction needs a certain construction window time, and therefore, the plugging material needs a certain consolidation time to prevent consolidation in the pumping process, and the consolidation time is generally not less than 2 hours.
As can be seen from tables 1 and 2: the consolidation time of the resin fibers in comparative example 1 is more than 2 hours at a temperature of not more than 85 c, and the consolidation time of the resin fibers in comparative example 1 is less than 2 hours at a temperature of more than 95 c. The consolidation time of the resin fibers in comparative example 2 is more than 2 hours at a temperature of not more than 95 c, and the consolidation time of the resin fibers in comparative example 2 is less than 2 hours at a temperature of more than 100 c.
In the range of 55-130 deg.C, the consolidation time of the resin fiber in the example 1 and the example 2 is not less than 2 hours. Therefore, the resin fibers in the embodiment 1 and the embodiment 2 can meet the field drilling plugging construction operation of higher formation temperature. Also, at the same temperature, for example, 85 ℃, the consolidation time of the resin fiber in example 1 is longer than that of comparative example 1; the consolidation time for the resin fibers in example 2 was longer than in comparative example 2.
In summary, it can be seen from tables 1 and 2 that: with the increase of the temperature, the addition of the epoxy resin in the first resin solution is beneficial to prolonging the consolidation time of the resin fiber and reserving sufficient construction time for well drilling plugging.
The above description is only for facilitating the understanding of the technical solutions of the present application by those skilled in the art, and is not intended to limit the present application. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. The resin fiber is characterized in that the resin fiber is obtained by spraying a first resin solution and a second resin solution on the surface of a target fiber in sequence based on a multifunctional fluidized bed process;
the first resin solution includes: phenolic resin, epoxy resin and solvent;
the second resin solution includes: a curing agent and the solvent;
the phenolic resin is at least one of molybdenum phenolic resin, barium phenolic resin, phenol triazine resin and ammonia phenolic resin;
the epoxy resin is at least one of bisphenol A epoxy resin, bisphenol F epoxy resin, bisphenol S epoxy resin and hydroxymethyl bisphenol A epoxy resin;
the mass ratio of the target fiber to the first resin solution is 1;
the mass ratio of the target fiber to the second resin solution is 1;
the resin fiber is a self-consolidation fiber and is suitable for drilling and plugging at the formation temperature of 55-130 ℃;
the curing agent is polyamine or polythiol.
2. The resin fiber according to claim 1, wherein the mass percent of the phenolic resin in the first resin solution is 23 to 47%, the mass percent of the epoxy resin is 7 to 28%, and the mass percent of the solvent is 30 to 50%.
3. The resin fiber according to claim 1, wherein the mass percent of the curing agent in the second resin solution is 3 to 7%, and the mass percent of the solvent is 93 to 97%.
4. The resin fiber according to claim 1, wherein the solvent is one of petroleum ether, acetone, ethanol, and methanol.
5. The resin fiber according to claim 1, wherein the target fiber is one of basalt fiber, glass fiber, carbon fiber, polypropylene fiber, or polyester fiber.
6. The resin fiber according to claim 1, wherein the target fiber has a length of 2 to 9mm and a thickness of 0.3 to 0.8mm.
7. A method for producing a resin fiber according to any one of claims 1 to 6, characterized by comprising:
putting target fibers into a multifunctional fluidized bed, starting an air blower, pushing and suspending the target fibers by the air blower, wherein the air blowing rate of the air blower is 40-80 m 3 The air injection pressure is 0.4 to 0.6MPa, the air inlet temperature is 50 to 100 ℃, and the air outlet temperature is 40 to 80 ℃;
under the action of a constant-flow pump, spraying the first resin solution on the target fiber by a high-pressure spray gun at a spray rate of 0.5-2L/h, and drying for 2-6 h to obtain a first fiber;
and spraying a second resin solution on the first fibers by the high-pressure spray gun at a liquid spraying rate of 0.2-1L/h under the action of the constant-flow pump, and drying for 1-5 h to obtain the resin fibers.
8. The method of claim 7, further comprising:
adding a solvent into a first reaction container according to the mass percent of each component;
adding phenolic resin into the first reaction container, and stirring at a first stirring speed of 200-800 r/min for 10-50 min at constant temperature;
and adding epoxy resin into the first reaction container, and stirring at a second stirring speed of 100-600 r/min for 20-50 min at constant temperature to obtain the first resin solution.
9. The method of claim 7, further comprising:
adding the solvent into a second reaction vessel according to the mass percent of each component;
and adding a curing agent into the second reaction vessel, and stirring at a third stirring speed of 200-1000 r/min for 30-60 min at a constant temperature to obtain the second resin solution.
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