CN106833600A - 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

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CN106833600A
CN106833600A CN201710029906.XA CN201710029906A CN106833600A CN 106833600 A CN106833600 A CN 106833600A CN 201710029906 A CN201710029906 A CN 201710029906A CN 106833600 A CN106833600 A CN 106833600A
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red mud
powder
strength pressure
pressure crack
bauxite
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CN106833600B (en
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张文生
董刚
叶家元
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China Building Materials Academy CBMA
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Abstract

The present invention relates to a kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof.The raw material of fracturing propping agents is：Red mud 50 95%, bauxite 1 40%, kaolin 1 25%, barium carbonate 3 20%.Preparation method is comprised the following steps, grinding：By described red mud, bauxite, kaolin, barium carbonate grinding separate compiling, four kinds of powders are obtained；Mixing：Four kinds of powders are well mixed, the first powder is obtained；Granulation：The first described powder is granulated in sponging granulator；Drying；Calcining：The described spherolite that dries is sintered；Cooling, that is, obtain the described acidproof high-strength pressure crack proppant of red mud base.The characteristics of fracturing propping agents prepared by the present invention have high-strength, acidproof concurrently; and replacing bauxite as main material by the use of red mud, the sintering temperature of product is low, not only can effectively reduce production cost; and the industrial residue that this aluminium industry of red mud is discharged 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 technology
Oil proppant is a kind of important material of fracturing work in oil, natural gas production industry, its effect Mechanism is to inject deep layer rock fracture by high pressure tactics to support rock stratum, and rock is kept when oil bottom pressure is less than clossing pressure The state that layer opens, strengthens Oil Guide rate, improves oil production.Can be obtained by Research statistics, can be carried using the oil well of proppant pressure break High yield 30-50%, moreover it is possible to ensure Oil/gas Well lasts, it is seen that its pass exploited in oil, natural gas low-permeability oil gas well Key is acted on.Proppant is divided into two natural and artificial major classes, and natural support agent is with quartz sand as representative, and artificial stays agent is main It is sintering ceramsite.With the exploitation of deep layer densification oil-gas Layer, proppant will bear pressure and various corrosion very high, natural pressure Split proppant to be difficult to meet requirement, artificial high-strength acid-resistant pressing crack supporting agent turns into 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 that the corresponding stratum of support, it is ensured that pressure break Passage it is unimpeded；(3) apparent density is small, and the carrying capacity of fracturing fluid is good, is easy to horizontal fractures, while substantially reducing the energy consumption of equipment And loss；(4) chemical stability is good, can resist oil, acid, salt, the corrosion of water under stratum.
Red mud is the solid powdery discarded object of discharge in aluminum oxide production process, often produces 1 ton of aluminum oxide, is about discharged Go out 1.0-1.8 tons of red mud.Red mud belongs to alkaline noxious residue, and key component is SiO2, CaO, Fe2O3, Al2O3, Na2O, TiO2, K2O etc., additionally composition containing igloss and micro non-ferrous metal etc..China's red mud accumulation volume of cargo in storage has reached 200,000,000 tons.It is red Storing up for mud do not only take up a large amount of soils, and causes serious environmental problem.In red mud containing a certain amount of silica and Aluminum oxide, can be as the raw material for preparing fracturing propping agents, for the recycling of red mud provides an approach.But existing skill In art in the fracturing propping agents containing red mud, the addition of red mud is less, the main combustion-supporting effect using red mud.
The content of the invention
It is a primary object of the present invention to, there is provided a kind of acidproof high-strength pressure crack proppant of red mud base and preparation method thereof, Technical problem to be solved is to make it with red mud as primary raw material, prepares acidproof, intensity fracturing propping agents high, i.e. with Trade waste is raw material, prepares the fracturing propping agents of quality better, so as to be conducive to the protection to environment, and is more suitable for reality With.
The object of the invention to solve the technical problems is realized using following technical scheme.
According to a kind of acidproof high-strength pressure crack proppant of red mud base proposed by the present invention, the described acidproof high intensity of red mud base The weight/mass percentage composition 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 can also be applied to the following technical measures to achieve further.
Preferably, foregoing a kind of acidproof high-strength pressure crack proppant of red mud base, wherein described red mud base is acidproof high-strength The raw material and the weight/mass percentage composition of each raw material for spending fracturing propping agents be, red mud 50-80%, bauxite 10-40%, kaolin 5-25%, barium carbonate 5-20%.
Preferably, foregoing a kind of acidproof high-strength pressure crack proppant of red mud base, wherein the acidproof high intensity of red mud base The surface of fracturing propping agents is glaze layer.
Preferably, foregoing a kind of acidproof high-strength pressure crack proppant of red mud base, wherein described red mud is that Bayer process is red Mud and/or red mud from sintering process.
The object of the invention to solve the technical problems is also realized using following technical scheme.
According to a kind of preparation method of the acidproof high-strength pressure crack proppant of red mud base proposed by the present invention, according to foregoing one Kind of the acidproof high-strength pressure crack proppant of red mud base, its preparation method is, grinding：By described red mud, bauxite, kaolin, carbon Sour barium separate compiling, obtains red mud powder, bauxite powder, kaolin powder, barium carbonate powder；Mixing：By described red mud powder, bauxite Powder, kaolin powder and barium carbonate powder are well mixed, and obtain the first powder；Granulation：By the first described powder in sponging granulator Middle granulation, prilling process is, by described the first powder feeding comminutor, while spray into water smoke, after after mother bulb generation, interval Property addition the first powder and spray into water smoke, the spherolite of 0.45-1.50mm is grown up to mother bulb；Drying：By described spherolite in 150- Dried 3-4 hours at 160 DEG C, obtain drying spherolite, the described weight/mass percentage composition for drying spherolite reclaimed water point is less than 0.1%； Calcining：The described spherolite that dries is sintered, sintering temperature is 1000-1300 DEG C, sintering time is 0.5-2 hours；Cooling, Obtain the described acidproof high-strength pressure crack proppant of red mud base.
The object of the invention to solve the technical problems can also be applied to the following technical measures to achieve further.
Preferably, the preparation method of foregoing a kind of acidproof high-strength pressure crack proppant of red mud base, wherein described red mud Powder, bauxite powder, kaolin powder, the particle diameter of barium carbonate powder are less than 45 microns.
Preferably, the preparation method of foregoing a kind of acidproof high-strength pressure crack proppant of red mud base, wherein described 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 foregoing a kind of acidproof high-strength pressure crack proppant of red mud base, with weight/mass percentage composition Meter, the water content of described spherolite is 30-50%.
Preferably, a kind of preparation method of foregoing acidproof high-strength pressure crack proppant of red mud base, described spherolite is existed Sintered in rotary kiln.
Preferably, the preparation method of foregoing a kind of acidproof high-strength pressure crack proppant of red mud base, wherein described cooling It is water-cooled or air-cooled.
Preferably, a kind of preparation method of foregoing acidproof high-strength pressure crack proppant of red mud base, the support for preparing The bulk density of agent is 1.60-1.80g/cm3, percentage of damage is 2.0-4.0% under 86MPa clossing pressures, and acid solubility is 3.0- 4.5%.
By above-mentioned technical proposal, a kind of acidproof high-strength pressure crack proppant of red mud base of the invention and preparation method thereof, extremely There are following advantages less：
1st, in fracturing propping agents prepared by the present invention, the consumption of red mud is the industry for utilizing to greatest extent more than 50% Discarded object-red mud, protects environment.
In the existing technology for preparing fracturing propping agents, the Main Function of red mud is combustion adjuvant, due to contain in red mud 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, addition is smaller, one As below 20%.The present invention prepares fracturing propping agents by primary raw material of red mud, in terms of weight/mass percentage composition, the consumption of red mud More than 50%, or even up to 95%, further existing trade waste is utilized, advantageously in the guarantor of environment Shield.
2nd, the present invention prepare fracturing propping agents intensity is high, acid resistance strong, advantageously in practical application.
Contain a certain amount of iron oxide in red mud.In the present invention, the addition of red mud is larger, i.e., obtained pelletiod pressure break In proppant, the content of iron oxide is accordingly improved, 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 glaze layer of densification, proppant surface is wrapped in, so as 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 Al2O3React, generate a certain amount of Baryta fledspar, improve proppant acid resistance.
Below 4.5%, percentage of damage reaches the acid solubility of finished product of the present invention below 5% under 86MPa clossing pressures SY/T 5108-2014 standards requirement, better than product in the market.
Described above is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention, And can be practiced according to the content of specification, described in detail as after with presently preferred embodiments of the present invention below.
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with Preferred embodiment, to according to a kind of acidproof high-strength pressure crack proppant of red mud base proposed by the present invention and preparation method thereof, it has Body implementation method, structure, feature and its effect, describe in detail as after.In the following description, different " embodiment " or " real Apply example " refer to be not necessarily same embodiment.Additionally, the special characteristic, structure or feature in one or more embodiments can be by appointing What suitable form combination.
Bayer process red mud used and red mud from sintering process are the life of Shandong branch company of China Aluminum Co., Ltd in the embodiment of the present invention The new discharge red mud that the scene of producing obtains.Bauxite takes from Henan Gongyi.Kaolin and barium carbonate are chemical reagent.
A kind of acidproof high-strength pressure crack proppant of red mud base that the present invention is provided, described red mud for Bayer process red mud and/ Or red mud from sintering process.
Because alumina-producing method is different, sintering process, 3 kinds of red muds of combination method and Bayer process can be divided into.Production method is different, Composition transfer in the red mud for obtaining is very big.Therefore, red mud is further defined to Bayer process red mud and/or sintering process by the present invention Red mud.The weight/mass percentage composition of iron oxide is 12-23% in described red mud.
Further, described red mud is Bayer process red mud, because iron oxide content is higher in Bayer process red mud, is prepared into The thickness of the glaze layer that the fracturing proppant particle for arriving is formed is larger.Therefore, it is the formation of guarantee 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 method of the acidproof high-strength pressure crack proppant of red mud base.Described preparation In method, the calcining heat for drying spherolite is 1000-1300 DEG C.
Further, the described calcining for drying spherolite is gradient calcining：The first step：Calcining heat is 1000-1100 DEG C, Calcination time 0.5 hour；Second step, calcining heat is 1100-1250 DEG C, calcination time 1 hour；3rd step, calcining heat is 1250-1300 DEG C, calcination time 0.5 hour.
Embodiment 1
The fracturing propping agents of the present embodiment, material quality percentage is：Bayer process red mud 50%, bauxite 20%, kaolinite Soil 15%, barium carbonate 15%.
The preparation method of red mud base fracturing propping agents is in the present embodiment：
(1) grinding：By described red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite are obtained Powder, kaolin powder, barium carbonate powder, described red mud powder, bauxite powder, kaolin powder, the particle diameter of barium carbonate powder is less than 45 microns.
(2) mix：Above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder are put into strength batch mixer and are mixed Close 10 minutes, be allowed to be sufficiently mixed uniformly, obtain the first powder.
(3) granulate：The first described powder is granulated in sponging granulator, prilling process is, by the first described powder In body feeding comminutor, while spraying into water smoke, after after mother bulb generation, intermittence is added the first powder and sprays into water smoke, to mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) described spherolite is dried 3 hours at 150 DEG C, obtains drying spherolite, described dries what spherolite reclaimed water was divided Weight/mass percentage composition is less than 0.1%.
(5) the described spherolite that dries is sintered, sintering temperature is 1200 DEG C, sintering time is 1 hour.
Spherolite after sintering is cooled down using water-cooling pattern, screening obtains the described acidproof high-strength pressure crack of red mud base Proppant.
After testing, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base has glaze layer to be formed obtained in the present embodiment.
Tested by SY/T 5108-2014 standard recommendation methods, the bulk density of the 16-20 mesh finished products for screening out is 1.71g/cm3, percentage of damage is 3.3% under 86MPa clossing pressures, and acid solubility is 4.2%.
Embodiment 2
The fracturing propping agents of the present embodiment, material quality percentage is：Bayer process red mud 60%, bauxite 10%, kaolinite Soil 15%, barium carbonate 15%.
The preparation method of red mud base fracturing propping agents is in the present embodiment：
(1) grinding：By described red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite are obtained Powder, kaolin powder, barium carbonate powder, described red mud powder, bauxite powder, kaolin powder, the particle diameter of barium carbonate powder is less than 45 microns.
(2) mix：Above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder are put into strength batch mixer and are mixed Close 10 minutes, be allowed to be sufficiently mixed uniformly, obtain the first powder.
(3) granulate：The first described powder is granulated in sponging granulator, prilling process is, by the first described powder In body feeding comminutor, while spraying into water smoke, after after mother bulb generation, intermittence is added the first powder and sprays into water smoke, to mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) described spherolite is dried 3 hours at 150 DEG C, obtains drying spherolite, described dries what spherolite reclaimed water was divided Weight/mass percentage composition is less than 0.1%.
(5) the described spherolite that dries is sintered, sintering temperature is 1150 DEG C, sintering time is 1 hour.
(6) spherolite after sintering is cooled down using air cooling way.
(7) finished product is obtained after sieving.
After testing, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base has glaze layer to be formed obtained in the present embodiment.
Tested by SY/T 5108-2014 standard recommendation methods, the bulk density of the 16-20 mesh finished products for screening out is 1.69g/cm3, percentage of damage is 3.6% under 86MPa clossing pressures, and acid solubility is 3.9%.
Embodiment 3
The fracturing propping agents of the present embodiment, material quality percentage is：Bayer process red mud 50%, bauxite 20%, kaolinite Soil 20%, barium carbonate 10%.
The preparation method of red mud base fracturing propping agents is in the present embodiment：
(1) grinding：By described red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite are obtained Powder, kaolin powder, barium carbonate powder, described red mud powder, bauxite powder, kaolin powder, the particle diameter of barium carbonate powder is less than 45 microns.
(2) mix：Above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder are put into strength batch mixer and are mixed Close 10 minutes, be allowed to be sufficiently mixed uniformly, obtain the first powder.
(3) granulate：The first described powder is granulated in sponging granulator, prilling process is, by the first described powder In body feeding comminutor, while spraying into water smoke, after after mother bulb generation, intermittence is added the first powder and sprays into water smoke, to mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) described spherolite is dried 3 hours at 150 DEG C, obtains drying spherolite, described dries what spherolite reclaimed water was divided Weight/mass percentage composition is less than 0.1%.
(5) the described spherolite that dries is sintered, sintering temperature is 1300 DEG C, sintering time is 2 hours.
(6) spherolite after sintering is cooled down using water-cooling pattern.
(7) finished product is obtained after sieving.
After testing, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base has glaze layer to be formed obtained in the present embodiment.
Tested by SY/T 5108-2014 standard recommendation methods, the bulk density of the 16-20 mesh finished products for screening out is 1.73g/cm3, percentage of damage is 3.2% under 86MPa clossing pressures, and acid solubility is 4.3%.
Embodiment 4
The fracturing propping agents of the present embodiment, material quality percentage is：Bayer process red mud 70%, bauxite 10%, kaolinite Soil 5%, barium carbonate 15%.
The preparation method of red mud base fracturing propping agents is in the present embodiment：
(1) grinding：By described red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite are obtained Powder, kaolin powder, barium carbonate powder, described red mud powder, bauxite powder, kaolin powder, the particle diameter of barium carbonate powder is less than 45 microns.
(2) mix：Above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder are put into strength batch mixer and are mixed Close 10 minutes, be allowed to be sufficiently mixed uniformly, obtain the first powder.
(3) granulate：The first described powder is granulated in sponging granulator, prilling process is, by the first described powder In body feeding comminutor, while spraying into water smoke, after after mother bulb generation, intermittence is added the first powder and sprays into water smoke, to mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) described spherolite is dried 3 hours at 150 DEG C, obtains drying spherolite, described dries what spherolite reclaimed water was divided Weight/mass percentage composition is less than 0.1%.
(5) the described spherolite that dries is sintered, sintering temperature is 1000 DEG C, sintering time is 2 hours.
(6) spherolite after sintering is cooled down using water-cooling pattern.
(7) finished product is obtained after sieving.
After testing, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base has glaze layer to be formed obtained in the present embodiment.
Tested by SY/T 5108-2014 standard recommendation methods, the bulk density of the 16-20 mesh finished products for screening out is 1.76g/cm3, percentage of damage is 3.8% under 86MPa clossing pressures, and acid solubility is 4.1%.
Embodiment 5
The fracturing propping agents of the present embodiment, material quality percentage is：Red mud from sintering process 95%, bauxite 1%, kaolin 1%th, barium carbonate 3%.
The preparation method of red mud base fracturing propping agents is in the present embodiment：
(1) grinding：By described red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite are obtained Powder, kaolin powder, barium carbonate powder, described red mud powder, bauxite powder, kaolin powder, the particle diameter of barium carbonate powder is less than 45 microns.
(2) mix：Above-mentioned red mud powder, bauxite powder, kaolin powder and barium carbonate powder are put into strength batch mixer and are mixed Close 10 minutes, be allowed to be sufficiently mixed uniformly, obtain the first powder.
(3) granulate：The first described powder is granulated in sponging granulator, prilling process is, by the first described powder In body feeding comminutor, while spraying into water smoke, after after mother bulb generation, intermittence is added the first powder and sprays into water smoke, to mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) described spherolite is dried 3 hours at 150 DEG C, obtains drying spherolite, described dries what spherolite reclaimed water was divided Weight/mass percentage composition is less than 0.1%.
(5) the described spherolite that dries is sintered, sintering temperature is 1200 DEG C, sintering time is 2 hours.
(6) spherolite after sintering is cooled down using air cooling way.
(7) finished product is obtained after sieving.
After testing, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base has glaze layer to be formed obtained in the present embodiment.
Tested by SY/T 5108-2014 standard recommendation methods, the bulk density of the 16-20 mesh finished products for screening out is 1.74g/cm3, percentage of damage is 3.5% under 86MPa clossing pressures, and acid solubility is 4.3%.
Embodiment 6
The fracturing propping agents of the present embodiment, material quality percentage is：Red mud from sintering process 95%, bauxite 1%, kaolin 1%th, barium carbonate 3%.
The preparation method of red mud base fracturing propping agents is in the present embodiment：
(1) grinding：By described red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite are obtained Powder, kaolin powder, barium carbonate powder, described red mud powder, bauxite powder, kaolin powder, the particle diameter of barium carbonate powder is less than 45 microns.
(2) mix：Above-mentioned red mud powder, bauxite powder, kaolin powder, barium carbonate powder, powdered carbon are put into strength batch mixer Middle mixing 10 minutes, is allowed to be sufficiently mixed uniformly, obtains the first powder.
(3) granulate：The first described powder is granulated in sponging granulator, prilling process is, by the first described powder In body feeding comminutor, while spraying into water smoke, after after mother bulb generation, intermittence is added the first powder and sprays into water smoke, to mother bulb Grow up to the spherolite of 0.45-1.50mm, spherolite is in moisture content 30%.
(4) described spherolite is dried 3 hours at 150 DEG C, obtains drying spherolite, described dries what spherolite reclaimed water was divided Weight/mass percentage composition is less than 0.1%.
(5) the described spherolite that dries is carried out into gradient calcining：The first step：Calcining heat is 1100 DEG C, and calcination time 0.5 is small When；Second step, calcining heat is 1250 DEG C, calcination time 1 hour；3rd step, calcining heat is 1300 DEG C, calcination time 0.5 Hour.
(6) spherolite after sintering is cooled down using air cooling way.
(7) finished product is obtained after sieving.
After testing, the pellet surface of the acidproof high-strength pressure crack proppant of red mud base has glaze layer to be formed obtained in the present embodiment.
Tested by SY/T 5108-2014 standard recommendation methods, the bulk density of the 16-20 mesh finished products for screening out is 1.74g/cm3, percentage of damage is 3.5% under 86MPa clossing pressures, and acid solubility is 4.3%.
Heretofore described number range includes all of numerical value in the range of this, and including any two in the range of this The value range of numerical value composition.For example, " described spherolite is dried at 150-160 DEG C ", this number range include 150-160 it Between all of numerical value, and including any two numerical value in the range of this (for example：155th, the value range (155-158) for 158) constituting； 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 its combination is not limited to power The combination that profit is obtained in requiring by adduction relationship.It is combined by the technical characteristic in claim and/or specification The technical scheme for arriving, is also protection scope of the present invention.
The above, is only presently preferred embodiments of the present invention, and any formal limitation is not made to the present invention, according to Any simple modification, equivalent variations and the modification made to above example according to technical spirit of the invention, still fall within this hair In the range of bright technical scheme.

Claims (10)

1. a kind of acidproof high-strength pressure crack proppant of red mud base, it is characterised in that：
The described raw material of the acidproof high-strength pressure crack proppant of red mud base and the weight/mass percentage composition of each raw material be, red mud 50- 95%th, bauxite 1-40%, kaolin 1-25%, barium carbonate 3-20%.
2. a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 1, it is characterised in that：
The described raw material of the acidproof high-strength pressure crack proppant of red mud base and the weight/mass percentage composition of each raw material be, red mud 50- 80%th, bauxite 10-40%, kaolin 5-25%, barium carbonate 5-20%.
3. a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 1 and 2, it is characterised in that：
Described 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 described acidproof high-strength pressure crack proppant of red mud base is glaze layer.
5. a kind of preparation method of the acidproof high-strength pressure crack proppant of red mud base, it is characterised in that：
A kind of acidproof high-strength pressure crack proppant of red mud base according to any one of claim 1-4, its preparation method is,
Grinding：By described red mud, bauxite, kaolin, barium carbonate separate compiling, red mud powder, bauxite powder, kaolin are obtained Powder, barium carbonate powder；
Mixing：Described red mud powder, bauxite powder, kaolin powder and barium carbonate powder are well mixed, the first powder is obtained；
Granulation：The first described powder is granulated in sponging granulator, prilling process is to make described the first powder feeding In grain machine, while spraying into water smoke, after after mother bulb generation, intermittence is added the first powder and sprays into water smoke, and 0.45- is grown up to mother bulb The spherolite of 1.50mm；
Drying：Described spherolite is dried 3-4 hours at 150-160 DEG C, obtains drying spherolite, described dries spherolite reclaimed water The weight/mass percentage composition for dividing is less than 0.1%；
Calcining：The described spherolite that dries is sintered, sintering temperature is 1000-1300 DEG C, sintering time is 0.5-2 hours；
Cooling, that is, obtain the described acidproof high-strength pressure crack proppant of red mud base.
6. the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 5, it is characterised in that：
Described red mud powder, bauxite powder, kaolin powder, the particle diameter of barium carbonate powder is less than 45 microns.
7. the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 5, it is characterised in that：
Described red mud powder, bauxite powder, kaolin powder and barium carbonate powder are mixed in batch mixer, incorporation time is 5-10 points Clock.
8. the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 5, it is characterised in that：
In terms of weight/mass percentage composition, the water content of described spherolite is 30-50%.
9. the preparation method of a kind of acidproof high-strength pressure crack proppant of red mud base according to claim 5, it is characterised in that：
Described spherolite is sintered in rotary kiln.
10. a kind of preparation method of acidproof high-strength pressure crack proppant of red mud base according to claim 5, its feature exists In：
The bulk density of the acidproof high-strength pressure crack proppant of red mud base for preparing is 1.60-1.80g/cm3, 86MPa closure pressures Percentage of damage is 2.0-4.0% under power, and acid solubility is 3.0-4.5%.
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Cited By (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
CN112028608A (en) * 2020-09-07 2020-12-04 山东理工大学 Ceramic filtering membrane prepared from red mud and preparation method thereof
CN114988849A (en) * 2021-03-01 2022-09-02 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
CN116590000A (en) * 2023-05-06 2023-08-15 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
董刚: "原料种类对压裂支撑剂烧结状态的影响", 《中国建材科技》 *

Cited By (6)

* 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
CN112028608A (en) * 2020-09-07 2020-12-04 山东理工大学 Ceramic filtering membrane prepared from red mud and preparation method thereof
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
CN114988849A (en) * 2021-03-01 2022-09-02 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
CN116590000A (en) * 2023-05-06 2023-08-15 郑州德赛尔陶粒有限公司 Fracturing propping agent taking red mud as additive and preparation method thereof

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