CN106833600B - A kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof - Google Patents

A kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof Download PDF

Info

Publication number
CN106833600B
CN106833600B CN201710029906.XA CN201710029906A CN106833600B CN 106833600 B CN106833600 B CN 106833600B CN 201710029906 A CN201710029906 A CN 201710029906A CN 106833600 B CN106833600 B CN 106833600B
Authority
CN
China
Prior art keywords
red mud
powder
strength pressure
bauxite
spherolite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710029906.XA
Other languages
Chinese (zh)
Other versions
CN106833600A (en
Inventor
张文生
董刚
叶家元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Building Materials Academy CBMA
Original Assignee
China Building Materials Academy CBMA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Building Materials Academy CBMA filed Critical China Building Materials Academy CBMA
Priority to CN201710029906.XA priority Critical patent/CN106833600B/en
Publication of CN106833600A publication Critical patent/CN106833600A/en
Application granted granted Critical
Publication of CN106833600B publication Critical patent/CN106833600B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/131—Inorganic additives
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1321—Waste slurries, e.g. harbour sludge, industrial muds
    • C04B33/1322—Red mud
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5022—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with vitreous materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
    • C04B41/81—Coating or impregnation
    • C04B41/85—Coating or impregnation with inorganic materials
    • C04B41/86—Glazes; Cold glazes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/442—Carbonates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74—Physical characteristics
    • C04B2235/77—Density
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The present invention relates to a kind of acidproof high-strength pressure crack proppants of red mud base and preparation method thereof.The raw material of fracturing propping agents are as follows: red mud 50-95%, bauxite 1-40%, kaolin 1-25%, barium carbonate 3-20%.Preparation method includes the following steps, grinding: by the red mud, bauxite, kaolin, barium carbonate grinding separate compiling, obtains four kinds of powders；Mixing: four kinds of powders are uniformly mixed, the first powder is obtained；It is granulated: first powder is granulated in sponging granulator；Drying；Calcining: the drying spherolite is sintered；It cools down to get the acidproof high-strength pressure crack proppant of red mud base is arrived.Fracturing propping agents prepared by the present invention have both high-strength, acidproof feature; and replacing bauxite as main material using red mud, the sintering temperature of product is low, and production cost not only can be effectively reduced; and the industrial residue of this aluminium industry discharge of red mud is taken full advantage of, be conducive to environmental protection.

Description

A kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof
Technical field
The present invention relates to a kind of fracturing propping agents, more particularly to a kind of acidproof high-strength pressure crack proppant of red mud base and its Preparation method.
Background technique
Petroleum proppant is petroleum, the important material of one kind of fracturing work in natural gas production industry, effect Mechanism is to inject deep layer rock fracture by high pressure tactics to support rock stratum, keeps rock when petroleum bottom pressure is lower than clossing pressure The state that layer opens enhances Oil Guide rate, improves oil production.It can be obtained by Research statistics, can be mentioned using the oil well of proppant pressure break High yield 30-50%, moreover it is possible to guarantee oil/gas well lasts, it is seen that it is in the pass that petroleum, natural gas low permeability oil and gas well are exploited Key effect.Proppant is divided into natural and artificial two major classes, and using quartz sand as representative, artificial stays agent is main for natural support agent For sintering ceramsite.With the exploitation of deep layer densification oil-gas Layer, proppant will bear very high pressure and various corrosion, natural to press It splits proppant to be difficult to meet the requirements, artificial high-strength acid-resistant pressing crack supporting agent becomes the inexorable trend of fracturing propping agents development.
In well fracturing operation, optimal petroleum fracturing propping agent needs to meet: (1) circularity sphericity is high, can be big The big flow conductivity for improving oil gas, improves oil and gas production；(2) compression strength is high, can guarantee the corresponding stratum of support, guarantees pressure break Channel it is unimpeded；(3) apparent density is small, and the carrying capacity of fracturing fluid is good, is convenient for horizontal fractures, while substantially reducing the energy consumption of equipment And loss；(4) chemical stability is good, can resist the corrosion of oil, acid, salt, water under stratum.
Red mud is the solid powdery waste being discharged in aluminum oxide production process, and 1 ton of aluminium oxide of every production about discharges 1.0-1.8 tons of red mud out.Red mud belongs to alkaline noxious residue, and main component is SiO2, CaO, Fe2O3, Al2O3, Na2O, TiO2, K2O etc., additionally ingredient containing igloss and micro non-ferrous metal etc..Red mud accumulation volume of cargo in storage in China's has reached 200,000,000 tons.It is red The stockpiling of mud does not only take up a large amount of soils, and causes serious environmental problem.In red mud containing a certain amount of silica and Aluminium oxide can be used as the raw material for preparing fracturing propping agents, provide an approach for the resource utilization of red mud.However existing skill In fracturing propping agents in art containing red mud, the additive amount of red mud is less, the main combustion-supporting effect for utilizing red mud.
Summary of the invention
It is a primary object of the present invention to, a kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof is provided, The technical problem to be solved is that so that it is prepared fracturing propping agents acidproof, that intensity is high with red mud primary raw material, that is, with Trade waste is raw material, and the good fracturing propping agents of preparation quality to be conducive to the protection to environment, and are more suitable for reality With.
The object of the invention to solve the technical problems adopts the following technical solutions to realize.
A kind of acidproof high-strength pressure crack proppant of red mud base proposed according to the present invention, the acidproof high intensity of red mud base The mass percentage of the raw material of fracturing propping agents and each raw material is red mud 50-95%, bauxite 1-40%, kaolin 1%-25%, barium carbonate 3-20%.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, wherein the red mud base is acidproof high-strength The mass percentage of the raw material and each raw material of spending fracturing propping agents is red mud 50-80%, bauxite 10-40%, kaolin 5-25%, barium carbonate 5-20%.
Preferably, a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, wherein the acidproof high intensity of red mud base The surface of fracturing propping agents is glaze layer.
Preferably, a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, wherein the red mud is that Bayer process is red Mud and/or red mud from sintering process.
Also the following technical solution is employed for the object of the invention to solve the technical problems to realize.
The preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base proposed according to the present invention, according to above-mentioned one The kind acidproof high-strength pressure crack proppant of red mud base, preparation method is grinding: by the red mud, bauxite, kaolin, carbon Sour barium separate compiling obtains red mud powder, bauxite powder, kaolin powder, barium carbonate powder；Mixing: by the red mud powder, bauxite Powder, kaolin powder and barium carbonate powder are uniformly mixed, and obtain the first powder；It is granulated: by first powder in sponging granulator Middle granulation, prilling process are first powder to be sent into pelletizer, while spraying into water mist, after mother bulb generation, interval Property addition the first powder and spray into water mist, until mother bulb grows up to the spherolite of 0.45-1.50mm；Drying: by the spherolite in 150- It is dried 3-4 hours at 160 DEG C, obtains dry spherolite, the mass percentage of moisture is less than 0.1% in the drying spherolite； Calcining: the drying spherolite is sintered, and sintering temperature is 1000-1300 DEG C, and sintering time is 0.5-2 hours；It is cooling, Obtain the acidproof high-strength pressure crack proppant of red mud base.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Preferably, the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, wherein the red mud Powder, bauxite powder, kaolin powder, barium carbonate powder partial size less than 45 microns.
Preferably, the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, wherein the red mud Powder, bauxite powder, kaolin powder and barium carbonate powder mix in batch mixer, and incorporation time is 5-10 minutes.
Preferably, the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, with mass percentage Meter, the water content of the spherolite are 30-50%.
Preferably, the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, the spherolite is existed It is sintered in rotary kiln.
Preferably, the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, wherein the cooling For water cooling or air-cooled.
Preferably, the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base above-mentioned, the support being prepared The bulk density of agent is 1.60-1.80g/cm3, percentage of damage is 2.0-4.0%, acid solubility 3.0- under 86MPa clossing pressure 4.5%.
By above-mentioned technical proposal, a kind of acidproof high-strength pressure crack proppant of red mud base of the present invention and preparation method thereof, until It has the advantage that less
1, in fracturing propping agents prepared by the present invention, the dosage of red mud is the industry that utilizes to greatest extent greater than 50% Waste-red mud, protects environment.
In the existing technology for preparing fracturing propping agents, the main function of red mud is combustion adjuvant, due in red mud containing compared with The flux material of high-content, can significantly reduce the firing temperature of fracturing propping agents, and it is this under the conditions of, additive amount is smaller, one As below 20%.The present invention prepares fracturing propping agents by primary raw material of red mud, in terms of mass percentage, the dosage of red mud Greater than 50%, or even up to 95%, further existing trade waste is utilized, is more conducive to the guarantor of environment Shield.
2, fracturing propping agents intensity prepared by the present invention is high, acid resistance is strong, is more conducive to practical application.
Contain a certain amount of iron oxide in red mud.In the present invention, the additive amount of red mud is larger, the pelletiod pressure break obtained In proppant, the content of iron oxide is correspondinglyd increase, and, iron oxide is melt into liquid phase at high temperature, is attached to fracturing propping agents ball The surface of grain, ultimately forms one layer of fine and close glaze layer, is wrapped in proppant surface, to improve the intensity of fracturing propping agents.
The presence of red mud of the present invention, moreover it is possible to make the SiO in barium carbonate and raw material2And Al2O3It reacts, generates a certain amount of Baryta fledspar, improve the acid resistance of proppant.
The acid solubility of finished product of the present invention is 4.5% hereinafter, percentage of damage is 5% hereinafter, reaching under 86MPa clossing pressure SY/T 5108-2014 standard requirements, better than product currently on the market.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention, And can be implemented in accordance with the contents of the specification, with presently preferred embodiments of the present invention, detailed description is as follows below.
Specific embodiment
It is of the invention to reach the technical means and efficacy that predetermined goal of the invention is taken further to illustrate, below in conjunction with Preferred embodiment, to a kind of acidproof high-strength pressure crack proppant of red mud base proposed according to the present invention and preparation method thereof, tool Body embodiment, structure, feature and its effect, detailed description is as follows.In the following description, different " embodiment " or " real Apply example " refer to be not necessarily the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by appointing What suitable form combination.
Bayer process red mud and red mud from sintering process used are that Shandong branch company, China Aluminum Co., Ltd is raw in the embodiment of the present invention The new discharge red mud that the scene of production obtains.Bauxite is derived from Henan Gongyi.Kaolin and barium carbonate are chemical reagent.
A kind of acidproof high-strength pressure crack proppant of red mud base provided by the invention, the red mud be Bayer process red mud and/ Or red mud from sintering process.
Because of alumina-producing method difference, 3 kinds of sintering process, combination method and Bayer process red muds can be divided into.Production method is different, The obtained composition transfer in red mud is very big.Therefore, red mud is further limited to Bayer process red mud and/or sintering process by the present invention Red mud.The mass percentage of iron oxide is 12-23% in the red mud.
Further, the red mud is that Bayer process red mud is prepared into since iron oxide content is higher in Bayer process red mud The thickness for the glaze layer that the fracturing proppant particle arrived is formed is larger.It therefore, is the formation for guaranteeing fracturing propping agents surface glaze layer, institute The content of iron oxide is 22-23 in the red mud stated, for example, iron oxide in Bayer process red mud used in the embodiment of the present invention 1 Content is 22.62%.
Invention further provides a kind of preparation methods of acidproof high-strength pressure crack proppant of red mud base.The preparation In method, the calcination temperature of dry spherolite is 1000-1300 DEG C.
Further, the calcining of the drying spherolite is gradient calcining: step 1: calcination temperature is 1000-1100 DEG C, Calcination time 0.5 hour；Second step, calcination temperature are 1100-1250 DEG C, calcination time 1 hour；Third step, calcination temperature are 1250-1300 DEG C, calcination time 0.5 hour.
Embodiment 1
The fracturing propping agents of the present embodiment, material quality percentage are as follows: Bayer process red mud 50%, bauxite 20%, kaolinite Native 15%, barium carbonate 15%.
In the present embodiment red mud base fracturing propping agents the preparation method comprises the following steps:
(1) by the red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite grinding: are obtained Powder, kaolin powder, barium carbonate powder, the red mud powder, bauxite powder, kaolin powder, barium carbonate powder partial size less than 45 microns.
(2) it mixes: above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder being put into strength batch mixer and mixed It closes 10 minutes, is allowed to be sufficiently mixed uniformly, obtains the first powder.
(3) it is granulated: first powder being granulated in sponging granulator, prilling process is, by first powder Body is sent into pelletizer, while spraying into water mist, after mother bulb generation, intermittence the first powder of addition and penetrating water mist, until mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) spherolite is dried 3 hours at 150 DEG C, obtains dry spherolite, moisture in the drying spherolite Mass percentage is less than 0.1%.
(5) the drying spherolite is sintered, sintering temperature is 1200 DEG C, and sintering time is 1 hour.
Sintered spherolite is cooling using water-cooling pattern, it sieves to get the acidproof high-strength pressure crack of red mud base is arrived Proppant.
Through detecting, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base made from the present embodiment has glaze layer to be formed.
It is tested by SY/T 5108-2014 standard recommendation method, the bulk density of the 16-20 mesh finished product screened out is 1.71g/cm3, percentage of damage is 3.3% under 86MPa clossing pressure, acid solubility 4.2%.
Embodiment 2
The fracturing propping agents of the present embodiment, material quality percentage are as follows: Bayer process red mud 60%, bauxite 10%, kaolinite Native 15%, barium carbonate 15%.
In the present embodiment red mud base fracturing propping agents the preparation method comprises the following steps:
(1) by the red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite grinding: are obtained Powder, kaolin powder, barium carbonate powder, the red mud powder, bauxite powder, kaolin powder, barium carbonate powder partial size less than 45 microns.
(2) it mixes: above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder being put into strength batch mixer and mixed It closes 10 minutes, is allowed to be sufficiently mixed uniformly, obtains the first powder.
(3) it is granulated: first powder being granulated in sponging granulator, prilling process is, by first powder Body is sent into pelletizer, while spraying into water mist, after mother bulb generation, intermittence the first powder of addition and penetrating water mist, until mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) spherolite is dried 3 hours at 150 DEG C, obtains dry spherolite, moisture in the drying spherolite Mass percentage is less than 0.1%.
(5) the drying spherolite is sintered, sintering temperature is 1150 DEG C, and sintering time is 1 hour.
(6) sintered spherolite is cooling using air cooling way.
(7) finished product is obtained after sieving.
Through detecting, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base made from the present embodiment has glaze layer to be formed.
It is tested by SY/T 5108-2014 standard recommendation method, the bulk density of the 16-20 mesh finished product screened out is 1.69g/cm3, percentage of damage is 3.6% under 86MPa clossing pressure, acid solubility 3.9%.
Embodiment 3
The fracturing propping agents of the present embodiment, material quality percentage are as follows: Bayer process red mud 50%, bauxite 20%, kaolinite Native 20%, barium carbonate 10%.
In the present embodiment red mud base fracturing propping agents the preparation method comprises the following steps:
(1) by the red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite grinding: are obtained Powder, kaolin powder, barium carbonate powder, the red mud powder, bauxite powder, kaolin powder, barium carbonate powder partial size less than 45 microns.
(2) it mixes: above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder being put into strength batch mixer and mixed It closes 10 minutes, is allowed to be sufficiently mixed uniformly, obtains the first powder.
(3) it is granulated: first powder being granulated in sponging granulator, prilling process is, by first powder Body is sent into pelletizer, while spraying into water mist, after mother bulb generation, intermittence the first powder of addition and penetrating water mist, until mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) spherolite is dried 3 hours at 150 DEG C, obtains dry spherolite, moisture in the drying spherolite Mass percentage is less than 0.1%.
(5) the drying spherolite is sintered, sintering temperature is 1300 DEG C, and sintering time is 2 hours.
(6) sintered spherolite is cooling using water-cooling pattern.
(7) finished product is obtained after sieving.
Through detecting, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base made from the present embodiment has glaze layer to be formed.
It is tested by SY/T 5108-2014 standard recommendation method, the bulk density of the 16-20 mesh finished product screened out is 1.73g/cm3, percentage of damage is 3.2% under 86MPa clossing pressure, acid solubility 4.3%.
Embodiment 4
The fracturing propping agents of the present embodiment, material quality percentage are as follows: Bayer process red mud 70%, bauxite 10%, kaolinite Native 5%, barium carbonate 15%.
In the present embodiment red mud base fracturing propping agents the preparation method comprises the following steps:
(1) by the red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite grinding: are obtained Powder, kaolin powder, barium carbonate powder, the red mud powder, bauxite powder, kaolin powder, barium carbonate powder partial size less than 45 microns.
(2) it mixes: above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder being put into strength batch mixer and mixed It closes 10 minutes, is allowed to be sufficiently mixed uniformly, obtains the first powder.
(3) it is granulated: first powder being granulated in sponging granulator, prilling process is, by first powder Body is sent into pelletizer, while spraying into water mist, after mother bulb generation, intermittence the first powder of addition and penetrating water mist, until mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) spherolite is dried 3 hours at 150 DEG C, obtains dry spherolite, moisture in the drying spherolite Mass percentage is less than 0.1%.
(5) the drying spherolite is sintered, sintering temperature is 1000 DEG C, and sintering time is 2 hours.
(6) sintered spherolite is cooling using water-cooling pattern.
(7) finished product is obtained after sieving.
Through detecting, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base made from the present embodiment has glaze layer to be formed.
It is tested by SY/T 5108-2014 standard recommendation method, the bulk density of the 16-20 mesh finished product screened out is 1.76g/cm3, percentage of damage is 3.8% under 86MPa clossing pressure, acid solubility 4.1%.
Embodiment 5
The fracturing propping agents of the present embodiment, material quality percentage are as follows: red mud from sintering process 95%, bauxite 1%, kaolin 1%, barium carbonate 3%.
In the present embodiment red mud base fracturing propping agents the preparation method comprises the following steps:
(1) by the red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite grinding: are obtained Powder, kaolin powder, barium carbonate powder, the red mud powder, bauxite powder, kaolin powder, barium carbonate powder partial size less than 45 microns.
(2) it mixes: above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder being put into strength batch mixer and mixed It closes 10 minutes, is allowed to be sufficiently mixed uniformly, obtains the first powder.
(3) it is granulated: first powder being granulated in sponging granulator, prilling process is, by first powder Body is sent into pelletizer, while spraying into water mist, after mother bulb generation, intermittence the first powder of addition and penetrating water mist, until mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) spherolite is dried 3 hours at 150 DEG C, obtains dry spherolite, moisture in the drying spherolite Mass percentage is less than 0.1%.
(5) the drying spherolite is sintered, sintering temperature is 1200 DEG C, and sintering time is 2 hours.
(6) sintered spherolite is cooling using air cooling way.
(7) finished product is obtained after sieving.
Through detecting, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base made from the present embodiment has glaze layer to be formed.
It is tested by SY/T 5108-2014 standard recommendation method, the bulk density of the 16-20 mesh finished product screened out is 1.74g/cm3, percentage of damage is 3.5% under 86MPa clossing pressure, acid solubility 4.3%.
Embodiment 6
The fracturing propping agents of the present embodiment, material quality percentage are as follows: red mud from sintering process 95%, bauxite 1%, kaolin 1%, barium carbonate 3%.
In the present embodiment red mud base fracturing propping agents the preparation method comprises the following steps:
(1) by the red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite grinding: are obtained Powder, kaolin powder, barium carbonate powder, the red mud powder, bauxite powder, kaolin powder, barium carbonate powder partial size less than 45 microns.
(2) it mixes: above-mentioned red mud powder, bauxite powder, kaolin powder, barium carbonate powder, powdered carbon is put into strength batch mixer Middle mixing 10 minutes is allowed to be sufficiently mixed uniformly, obtains the first powder.
(3) it is granulated: first powder being granulated in sponging granulator, prilling process is, by first powder Body is sent into pelletizer, while spraying into water mist, after mother bulb generation, intermittence the first powder of addition and penetrating water mist, until mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) spherolite is dried 3 hours at 150 DEG C, obtains dry spherolite, moisture in the drying spherolite Mass percentage is less than 0.1%.
(5) the drying spherolite is carried out gradient calcining: step 1: calcination temperature is 1100 DEG C, calcination time 0.5 is small When；Second step, calcination temperature are 1250 DEG C, calcination time 1 hour；Third step, calcination temperature are 1300 DEG C, calcination time 0.5 Hour.
(6) sintered spherolite is cooling using air cooling way.
(7) finished product is obtained after sieving.
Through detecting, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base made from the present embodiment has glaze layer to be formed.
It is tested by SY/T 5108-2014 standard recommendation method, the bulk density of the 16-20 mesh finished product screened out is 1.74g/cm3, percentage of damage is 3.5% under 86MPa clossing pressure, acid solubility 4.3%.
Heretofore described numberical range includes numerical value all within the scope of this, and including any two within the scope of this The value range of numerical value composition.For example, " spherolite is dried at 150-160 DEG C ", this numberical range include 150-160 it Between all numerical value, and including any two numerical value within the scope of this (such as: 155, the 158) value range (155-158) formed； The different numerical value of the same index occurred in all embodiments of the invention, can in any combination, compositing range value.
Technical characteristic in the claims in the present invention and/or specification can be combined, and a combination thereof mode is not limited to weigh The combination obtained in benefit requirement by adduction relationship.It is combined by the technical characteristic in claim and/or specification The technical solution and protection scope of the present invention arrived.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to According to technical spirit any simple modification, equivalent change and modification to the above embodiments of the invention, this hair is still fallen within In the range of bright technical solution.

Claims (8)

1. a kind of acidproof high-strength pressure crack proppant of red mud base, it is characterised in that:
The raw material of the acidproof high-strength pressure crack proppant of red mud base and the mass percentage of each raw material is red mud 70- 95%, bauxite 1-10%, kaolin 1-25%, barium carbonate 3-20%；
The acidproof high-strength pressure crack proppant of red mud base the preparation method comprises the following steps:
Grinding: by the red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite powder, kaolin are obtained Powder, barium carbonate powder；
Mixing: the red mud powder, bauxite powder, kaolin powder and barium carbonate powder are uniformly mixed, the first powder is obtained；
It is granulated: first powder is granulated in sponging granulator, prilling process is to make the first powder feeding In grain machine, while water mist is sprayed into, after mother bulb generation, intermittence the first powder of addition and penetrating water mist, until mother bulb grows up to 0.45- 1.50mm spherolite；
Drying: the spherolite is dried 3-4 hours at 150-160 DEG C, obtains dry spherolite, water in the drying spherolite The mass percentage divided is less than 0.1%；
Calcining: the drying spherolite is sintered, and sintering temperature is 1000-1300 DEG C, and sintering time is 0.5-2 hours；
It cools down to get the acidproof high-strength pressure crack proppant of red mud base is arrived；
The bulk density of the acidproof high-strength pressure crack proppant of red mud base is 1.60-1.80g/cm3,86MPa clossing pressure Lower percentage of damage is 2.0-4.0%, acid solubility 3.0-4.5%.
2. a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 1, it is characterised in that:
The raw material of the acidproof high-strength pressure crack proppant of red mud base and the mass percentage of each raw material be, red mud 95%, Bauxite 1%, kaolin 1%, barium carbonate 3%.
3. a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 1, it is characterised in that:
The red mud is Bayer process red mud and/or red mud from sintering process.
4. a kind of acidproof high-strength pressure crack proppant of red mud base according to any one of claim 1-3, it is characterised in that:
The surface of the acidproof high-strength pressure crack proppant of red mud base is glaze layer.
5. a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 1, it is characterised in that:
The red mud powder, bauxite powder, kaolin powder, barium carbonate powder partial size less than 45 microns.
6. a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 1, it is characterised in that:
The red mud powder, bauxite powder, kaolin powder and barium carbonate powder are mixed in batch mixer, incorporation time is 5-10 points Clock.
7. a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 1, it is characterised in that:
In terms of mass percentage, the water content of the spherolite is 30-50%.
8. a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 1, it is characterised in that:
The spherolite is sintered in rotary kiln.
CN201710029906.XA 2017-01-16 2017-01-16 A kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof Active CN106833600B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710029906.XA CN106833600B (en) 2017-01-16 2017-01-16 A kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710029906.XA CN106833600B (en) 2017-01-16 2017-01-16 A kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof

Publications (2)

Publication Number Publication Date
CN106833600A CN106833600A (en) 2017-06-13
CN106833600B true CN106833600B (en) 2019-07-30

Family

ID=59125050

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710029906.XA Active CN106833600B (en) 2017-01-16 2017-01-16 A kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof

Country Status (1)

Country Link
CN (1) CN106833600B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109825278A (en) * 2019-03-16 2019-05-31 大连地拓环境科技有限公司 A kind of high-strength light coal bed gas proppant and preparation method thereof
CN110257046A (en) * 2019-07-23 2019-09-20 天津理工大学 A method of petroleum fracturing propping agent is prepared using red mud and oil sludge and sand
CN112028608B (en) * 2020-09-07 2022-08-05 山东理工大学 Ceramic filtering membrane prepared from red mud and preparation method thereof
CN114988849B (en) * 2021-03-01 2023-06-06 中国石油化工股份有限公司 Method for preparing high-strength ceramsite by using dried drilling mud as raw material
CN116590000B (en) * 2023-05-06 2024-06-25 郑州德赛尔陶粒有限公司 Fracturing propping agent taking red mud as additive and preparation method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1367306A (en) * 2002-03-10 2002-09-04 宜兴东方石油支撑剂有限公司 Solid propping agent and its preparation method
CN101085914A (en) * 2007-07-17 2007-12-12 桂林工学院 Method for preparing acid-resistant pressing crack supporting agent from red mud
CN101575503A (en) * 2009-06-11 2009-11-11 邹平金刚新材料有限公司 High-strength compress supporting agent for coarse oil and preparation method thereof
CN102757780A (en) * 2012-08-10 2012-10-31 巩义市天祥耐材有限公司 Oil fracturing propping agent and production method thereof
CN103396784A (en) * 2013-08-15 2013-11-20 贵州林海陶粒制造有限公司 Low-density and high-strength petroleum fracturing proppant prepared from red mud and preparation method thereof
CN104193351A (en) * 2014-09-05 2014-12-10 金刚新材料股份有限公司 System and method for producing fracturing propping agent by taking red mud as raw material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1367306A (en) * 2002-03-10 2002-09-04 宜兴东方石油支撑剂有限公司 Solid propping agent and its preparation method
CN101085914A (en) * 2007-07-17 2007-12-12 桂林工学院 Method for preparing acid-resistant pressing crack supporting agent from red mud
CN101575503A (en) * 2009-06-11 2009-11-11 邹平金刚新材料有限公司 High-strength compress supporting agent for coarse oil and preparation method thereof
CN102757780A (en) * 2012-08-10 2012-10-31 巩义市天祥耐材有限公司 Oil fracturing propping agent and production method thereof
CN103396784A (en) * 2013-08-15 2013-11-20 贵州林海陶粒制造有限公司 Low-density and high-strength petroleum fracturing proppant prepared from red mud and preparation method thereof
CN104193351A (en) * 2014-09-05 2014-12-10 金刚新材料股份有限公司 System and method for producing fracturing propping agent by taking red mud as raw material

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
原料种类对压裂支撑剂烧结状态的影响;董刚;《中国建材科技》;20161225(第6期);第27-32页

Also Published As

Publication number Publication date
CN106833600A (en) 2017-06-13

Similar Documents

Publication Publication Date Title
CN106833600B (en) A kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof
CN105524607B (en) A kind of method that low-density ceramic proppant is prepared using aluminous fly-ash as raw material
EA012824B1 (en) Sintered spherical pellets for gas and oil wells and a method of fracturing
CN101914374B (en) High-strength ceramsite propping agent and production method thereof
CN101831286B (en) Low-density and high-strength ceramic proppant and production method thereof
CN104263347A (en) Low-density coated ceramic proppant prepared through fly ash and preparation method of low-density coated ceramic proppant
CN102660252B (en) Low-density ceramsite propping agent taking low-aluminum high-silicon alumyte as major raw material and preparation method thereof
RU2008115420A (en) PROPPANT, METHOD OF ITS PREPARATION AND METHOD OF HYDRAULIC GROUND RUPTURE USING THE RECEIVED PROPANTS
CN102126838A (en) Method for preparing light building material ceramsites by using lithium extraction slag of lithium mica
CN105131934B (en) A kind of double-layer high strength fracturing propping agents and preparation method thereof
CN103820101A (en) Acid-resistant petroleum fracturing propping agent and preparation method thereof
CN102268248B (en) Low-density high-strength andalusite fracturing propping agent and production method thereof
CN110028947A (en) High-strength low close petroleum fracturing propping agent and preparation method are prepared using Coaseries kaolin
CN110451824A (en) A kind of method that ore floatation tailings prepares Portland clinker
CN102585798A (en) Spinel high-strength petroleum fracturing proppant and production method thereof
CN111960807A (en) Preparation method of medium-density ultrahigh-strength ceramsite proppant
CN107216868A (en) A kind of VHD superhigh intensity ceramsite propping agent and preparation method thereof
CN104893706B (en) The ceramsite sand of high-density high-strength is prepared using bauxite abandoned mine slag
CN107266045A (en) A kind of corundum-mullite ceramsite propping agent and preparation method thereof
CN109439312A (en) A kind of petroleum fracturing propping agent and production technology and purposes based on Tailings utilization
CN106867502B (en) Utilize the method for aluminous fly-ash coproduction petroleum fracturing propping agent and eakleite
CN113969160A (en) High-strength ceramsite proppant produced by using mine tailings and preparation method thereof
CN109825278A (en) A kind of high-strength light coal bed gas proppant and preparation method thereof
CN113773829B (en) Low-density petroleum fracturing ceramsite proppant and preparation method thereof
CN103242819A (en) Ultrahigh-density ceramsite proppant and preparation method thereof

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant