CN103992786A - Ultralow-density hollow ceramsite proppant and preparation method thereof - Google Patents
Ultralow-density hollow ceramsite proppant and preparation method thereof Download PDFInfo
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- CN103992786A CN103992786A CN201410167985.7A CN201410167985A CN103992786A CN 103992786 A CN103992786 A CN 103992786A CN 201410167985 A CN201410167985 A CN 201410167985A CN 103992786 A CN103992786 A CN 103992786A
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- 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
- C09K8/805—Coated proppants
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
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Abstract
The invention provides an ultralow-density hollow ceramsite proppant. The ultralow-density hollow ceramsite proppant is prepared by using 35-45 parts by weight of bauxite, 0.05-0.15 parts by weight of manganese powder and 5-15 parts by weight of coal dust. A prepration method of the ultralow-density hollow ceramsite proppant comprises the following steps: crushing bauxite, manganese powder and coal dust to form 200-400 mesh uniform particles, adding water, and stirring to form a liquid mixture; carrying out spray granulation on the liquid mixture to prepare particles, drying at 500-1000DEG C, and cooling to prepare hollow ceramsite with the granularity of 20-40 meshes and the density of 1.1-1.5g/cm<3>; and sintering the hollow ceramsite at 1100-1500DEG C for 2-4h. The density of the proppant prepared in the invention is 1.1-1.5g/cm<3>, so the sand carrying capability of a fracturing fluid is substantially improved, the fracturing effect is improved, the flow conductivity improves 3-4 times, and the corresponding output improves 3-4 times.
Description
Technical field
The present invention relates to Oil/gas Well and use propping agent field, particularly hollow ceramsite propping agent of a kind of extremely-low density and preparation method thereof.
Background technology
Coal-seam gas, refer to exist in coal seam and take methane as main component, to be adsorbed on matrix of coal particle surface to be master, to be partly free in coal hole or to be dissolved in the hydrocarbon gas in coal seam water, it is the associated minerals resource of coal, belonging to unconventional Sweet natural gas, is cleaning, high-grade energy and the industrial chemicals emerging in the world in nearly ten or twenty year.Calorific value is 2～5 times of general coal, the calorific value of 1 cubic metre of pure coal-seam gas is equivalent to 1.13kg gasoline, 1.21kg standard coal, its calorific value and Sweet natural gas are suitable, can be mixed defeated mixed with Sweet natural gas, and very clean after burning, producing hardly any waste gas, is first-class industry, chemical industry, generating and resident living fuel.
Coal-seam gas is as one of three major members of Gas Energy Source family, the same with the exploratory development of Sweet natural gas, gas hydrate, is day by day subject to the attention of countries in the world.Whole world buried depth is shallower than the coal bed gas resource of 2000 meters and is about 240 tcms.The U.S. is that coal-seam gas commercial development is the most national in the world at present, and between 12 years from nineteen eighty-three to nineteen ninety-five, coal-seam gas annual production is surged to 250 billion cubic meters from 1.7 billion cubic meters, and within 2005 years, methane output reaches 500 billion cubic meters.Estimate that the year two thousand twenty is to the year two thousand thirty, coal and oil will be caught up with and surpass to the proportion of combustion gas in world's energy structure.Scholarly forecast, within 2010, China's gas gap will reach 300 billion cubic meters; The year two thousand twenty will reach 1000 billion cubic meters.In the current disposable energy consumption structure of China, coal accounts for 74.6%, and oil accounts for 17.6%, and Sweet natural gas only accounts for 2%, the world average level far below 23%.Along with terminal energy sources demand progressively transforms to high-quality and efficient clear energy sources, the demand of Sweet natural gas increases rapidly.Developing coal-seam gas can the proportion in energy consumption mix increase combustion gas year by year.
Shale gas, is exploitation Sweet natural gas out from shale bed, is a kind of important unconventional gas resources.Shale gas is often distributed in basin in larger, the widespread shale hydrocarbon source rock formation of thickness, has a very wide distribution, thickness is large, and general gassiness, and this makes the shale gas well can be chronically with stable speed aerogenesis.China announced and found that mining resources potentiality are that 25.1 tcm shale gas can be for Chinese nearly 200 years in March, 2012.
Shale gas main body is arranged in dark-coloured mud shale or high-carbon mud shale, shale gas is with absorption or unbound state, to be present in the Sweet natural gas in mud stone, high-carbon mud stone, shale and aleuritic texture rock class interlayer in main body, and it can be created in the various stage Sweet natural gas main bodys of organic origin and be present in crack, hole and other reservoir space with the phase of dissociating (about 50%).Minute quantity take dissolved state be stored in siltstone that Sweet natural gas in kerogen, bituminous matter and oil is also present in sandwich-like, silty, pelitic siltstone, even in sandstone formation after Sweet natural gas generates, gathering nearby in source bed shows as one-tenth Tibetan, typical original place pattern, larger with difference such as resinous shale, oil-sand, pitch earth.Different from conventional reservoir gas Tibetan, shale is the source rock that Sweet natural gas generates, and is also reservoir and the cap rock of assembling and preserve Sweet natural gas.Therefore the black shale that organic content is high, high-carbon mud stone etc. are often best shale gas developmental conditions.
Shale also belongs to dense rock, therefore also can be included into tight gas reservoir gas.It originates in the Devonian system shale in A Balaqiya basin, is dun and black, rich organic, can be angry in a large number.Reservoir space take crack as main and can adsorbed gas and Water Soluble Gas form compose and deposit, be low (bear) pressure, low saturation (30% left and right), thereby be low yield.But at Fractured Zone, can obtain high yield, the modification measures effects such as well-shoot and pressure break might as well.
Shale gas exploitation has advantages of that production life of well length and production cycle, length-most of aerogenesis shale had a very wide distribution, thickness is large, and general gassiness, makes shale gas well can stablize chronically aerogenesis.But shale gas permeability of reservoir is low, exploitation difficulty is larger.Along with constantly riseing of world energy sources consumption, comprise that the unconventional energy resource of shale gas more and more comes into one's own.
From worldwide, mud, shale account for 60% of whole sedimentogeneous rocks, and shale gas Resources Prospect is huge.Mainly be distributed in North America, the Central Asia and China, Latin America, Middle East and North Africa, USSR (Union of Soviet Socialist Republics).Nearly 5,500,000 to the 860 Tcf shale gas reserves in Canada West area.U.S.'s shale gas geologic reserve approximately 28 tcms.U.S.'s shale gas ultimate production 500 billion cubic meters in 2007, account for the more than 8% of U.S.'s Sweet natural gas total amount then.The shale gas reserves of China surpass other any one country, and workable reserve has 36 tcms.By current consumption level, these reserves enough China are used more than 300 year.
The important reoovery method of coal-seam gas and shale gas comprises drilling well exploitation and hydrofracturing method exploitation (or claiming Splitting Method).Coal gas fracturing reform can be communicated with the natural crack in wellhole and coal seam effectively, thereby when water pumping gas production, distributes more widely near the pressure drop of wellhole, increases production capacity, increases desorption of gases speed.Therefore,, in CBM exploration and development, hydrofracturing method, as a kind of important measures, is widely used.
In typical waterfrac treatment is processed, comprise Selid propping agent and fracturing liquid, under the pressure in the crack in being enough to generation or expansion coal seam or shale bed, be injected in pit shaft.This propping agent deposits with supporting crack in crack, and this makes coal-seam gas or shale gas shift to pit shaft from stratum.Propping agent plays very crucial effect in waterfrac treatment.Now in CBM Fracturing main use be natural siliceous sand, in shale gas pressure break, main use is sintering ceramsite and quartz sand, the relative density of sintering ceramsite and quartz sand is 1.6～3.0.
In waterfrac treatment operation, desirable propping agent should possess following characteristics: (1) relative density is little, is convenient to pump into underground; (2) intensity is high, can be not crushed for heavy duty service; (3) unreactiveness is good, the high temperature resistant and erosion that can resist oil, acid, salt solution etc. in stratum; (4) circularity is good, to keep good space between proppant particles.
It is high that natural siliceous sand and sintering ceramsite have intensity, good chemical stability, but for coal-seam gas, shale gas, bad adaptability, major cause is that its density is large, needs high viscosity to take husky liquid and could realize pressure break, and high viscosity to take husky liquid be some polymer substances, in coal bed gas well, the too low difficult broken glue of Yin Wendu, causes energy consumption high, large to formation damage, and aftertreatment is complicated, expense is high.The more important thing is, because sintering ceramsite and quartz sand are because settling velocity is soon in immediate vicinity of wellbore rapid subsidence, the crack of farther place and the upper part in crack all can not obtain effective filling, have directly affected the effect of pressure break and the raising of output later.
Summary of the invention
For solving above-mentioned the deficiencies in the prior art, the invention provides hollow ceramsite propping agent of a kind of extremely-low density and preparation method thereof, solved the problem of existing propping agent to coal-seam gas and shale gas bad adaptability.
Technical scheme of the present invention is achieved in that
The hollow ceramsite propping agent of extremely-low density, is made by the raw material of following weight parts: the bauxitic clay of 35～45 weight parts, the manganese powder of 0.05～0.15 weight part, the coal dust of 5～15 weight parts.
Wherein, preferably, the hollow ceramsite propping agent of a kind of extremely-low density, is made by the raw material of following weight parts: the bauxitic clay of 37～41 weight parts, the manganese powder of 0.08～0.12 weight part, the coal dust of 8～12 weight parts.
Wherein, preferably, the hollow ceramsite propping agent of described extremely-low density surface is also coated with surface coating agent, and described surface coating agent is 7.3～13% of the coated hollow ceramsite propping agent weight of extremely-low density.
Wherein, preferably, described surface coating agent is made by 3～5% resol of the hollow ceramsite propping agent weight of the extremely-low density being coated, 3～5% calcium stearate, 1～2% hexamethylenetetramine and 0.3～1 silane coupling agent.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 200～400 object single-sizes, the water that adds 45～55 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 500～1000 ℃ of temperature, dry, making granularity after cooling is that 20～40 orders, density are 1.1～1.5g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 2～4 hours at 1100～1500 ℃, obtain.
Wherein, preferably, above-mentioned preparation method is further comprising the steps of:
4) the hollow ceramsite propping agent of step 3 gained extremely-low density is added in process furnace, be warming up to 200～250 ℃, continue 5-8min;
5) be then delivered in stirrer, 3～5% resol of the hollow ceramsite propping agent weight of extremely-low density that adds successively step 4 to add, 3～5% calcium stearate, 1～2% hexamethylenetetramine and 0.3～1 silane coupling agent, etc. cooling, complete, then enter sieve shaker sub-sieve, obtain.
Wherein, preferably, in described step 5, add appropriate water to accelerate curing and speed of cooling.
Beneficial effect of the present invention:
1. in preparation method of the present invention, in 200～400 object bauxitic clay single-sizes, add manganese powder, coal dust can increase the intensity of bauxitic clay particle, be beneficial to 200～400 object bauxitic clay single-sizes and form hollow haydite.
2. in prior art, propping agent used is sintering ceramsite and quartz sand; its relative density is 1.6～3.0; the propping agent density that the present invention makes is 1.1～1.5; approach with the liquid-tight degree of pressure break such as active water, slippery water; greatly improved the of the fracturing fluid husky ability of taking, the propping agent density that the present invention makes is low, and while making pressure break, the Pump pressure of fracturing of equipment reduces; directly can reduce the quantity of pressure break pump truck, the protection of fracturing unit also played to certain effect simultaneously.In addition, this propping agent density reduces, and can use without polymer or a small amount of high molecular fracturing liquid, like this pollution on stratum is reduced greatly, reduces the obstruction of polymer substance fracture, microfracture in fracturing liquid, has improved flow conductivity.
The most important thing is that the support density making due to the present invention reduces, make propping agent can arrive the upper part in crack and the crack of farther place, directly increased the packing volume of fracturing propping agents, improve fracturing effect, make flow conductivity improve 3～4 times, corresponding output also improves 3～4 times.
In addition, adopt hydrofracturing method exploiting coal bed methane and shale gas to need a large amount of water, the high-strength low-density propping agent that uses the inventive method to make, greatly reduced water consumption, saving water resource has reduced pressure break cost simultaneously, there are very large economic advantages, for China, because lack of water affects shale gas exploitation, have great importance.
3. the present invention uses resin to carry out, after proportioning, this propping agent is carried out to surface coating, can improve a little the pressure of propping agent.
Embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
The hollow ceramsite propping agent of extremely-low density, is made by the raw material of following weight parts: the bauxitic clay of 35～45 weight parts, the manganese powder of 0.05～0.15 weight part, the coal dust of 5～15 weight parts.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 200～400 object single-sizes, the water that adds 45～55 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 500～1000 ℃ of temperature, dry, making granularity after cooling is that 20～40 orders, density are 1.1～1.5g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 2～4 hours at 1100～1500 ℃, obtain.
Wherein, preferably, above-mentioned preparation method is further comprising the steps of:
4) the hollow ceramsite propping agent of step 3 gained extremely-low density is added in process furnace, be warming up to 200～250 ℃, continue 5-8min;
5) be then delivered in stirrer, 3～5% resol of the hollow ceramsite propping agent weight of extremely-low density that adds successively step 4 to add, 3～5% calcium stearate, 1～2% hexamethylenetetramine and 0.3～1 silane coupling agent, etc. cooling, complete, then enter sieve shaker sub-sieve, obtain.
In following embodiment, Al in bauxitic clay used
2o
3content is 65～70%, MnO in manganese powder
2content>=43%, C in coal dust:>=50%, SO
2:≤1%.
In the following embodiments, prepare the two helical-structure agitator of hollow ceramsite propping agent stirrer used, mist projection granulating adopts high-pressure column pump to carry out mist projection granulating.
Embodiment 1
The present embodiment provides a kind of extremely-low density hollow ceramsite propping agent, by the raw material of following weight parts, is made: the bauxitic clay of 39 weight parts, the manganese powder of 0.1 weight part, the coal dust of 10 weight parts.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 300 object single-sizes, the water that adds 50.5 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 800 ℃ of temperature, dry, making granularity after cooling is that 30 orders, density are 1.2g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 3 hours at 1200 ℃, obtain.
Embodiment 2
The present embodiment provides a kind of extremely-low density hollow ceramsite propping agent, by the raw material of following weight parts, is made: the bauxitic clay of 35 weight parts, the manganese powder of 0.05 weight part, the coal dust of 5 weight parts.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 200 object single-sizes, the water that adds 45 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 500 ℃ of temperature, dry, making granularity after cooling is that 20 orders, density are 1.1g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 2 hours at 1300 ℃, obtain.
4) the hollow ceramsite propping agent of step 3 gained extremely-low density is added in process furnace, be warming up to 240 ℃, continue 6min;
5) be then delivered in stirrer, 4% resol of the hollow ceramsite propping agent weight of extremely-low density that adds successively step 4 to add, 4% calcium stearate, 1.5% hexamethylenetetramine and 0.5 silane coupling agent, etc. cooling, complete, then enter sieve shaker sub-sieve, obtain.
Embodiment 3
The present embodiment provides a kind of extremely-low density hollow ceramsite propping agent, by the raw material of following weight parts, is made: the bauxitic clay of 45 weight parts, the manganese powder of 0.15 weight part, the coal dust of 15 weight parts.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 400 object single-sizes, the water that adds 55 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 1000 ℃ of temperature, dry, making granularity after cooling is that 40 orders, density are 1.5g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 4 hours at 1400 ℃, obtain.
Embodiment 4
The present embodiment provides a kind of extremely-low density hollow ceramsite propping agent, by the raw material of following weight parts, is made: the bauxitic clay of 35 weight parts, the manganese powder of 0.15 weight part, the coal dust of 5 weight parts.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 300 object single-sizes, the water that adds 45 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 900 ℃ of temperature, dry, making granularity after cooling is that 20 orders, density are 1.3g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 2～4 hours at 1300 ℃, obtain.
4) the hollow ceramsite propping agent of step 3 gained extremely-low density is added in process furnace, be warming up to 200 ℃, continue 8min;
5) be then delivered in stirrer, 3% resol of the hollow ceramsite propping agent weight of extremely-low density that adds successively step 4 to add, 5% calcium stearate, 1% hexamethylenetetramine and 0.3 silane coupling agent, and add 10% water, etc. cooling, complete, then enter sieve shaker sub-sieve, obtain.
Embodiment 5
The present embodiment provides a kind of extremely-low density hollow ceramsite propping agent, by the raw material of following weight parts, is made: the bauxitic clay of 45 weight parts, the manganese powder of 0.05 weight part, the coal dust of 15 weight parts.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 200～400 object single-sizes, the water that adds 45 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 700 ℃ of temperature, dry, making granularity after cooling is that 20～40 orders, density are 1.4g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 3 hours at 1100 ℃, obtain.
Embodiment 6
The present embodiment provides a kind of extremely-low density hollow ceramsite propping agent, by the raw material of following weight parts, is made: the bauxitic clay of 37 weight parts, the manganese powder of 0.08 weight part, the coal dust of 8 weight parts.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 400 object single-sizes, the water that adds 50 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 600 ℃ of temperature, dry, making granularity after cooling is that 20 orders, density are 1.2g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 3 hours at 1500 ℃, obtain.
4) the hollow ceramsite propping agent of step 3 gained extremely-low density is added in process furnace, be warming up to 250 ℃, continue 5min;
5) be then delivered in stirrer, 5% resol of the hollow ceramsite propping agent weight of extremely-low density that adds successively step 4 to add, 3% calcium stearate, 2% hexamethylenetetramine and 1 silane coupling agent, etc. cooling, complete, then enter sieve shaker sub-sieve, obtain.
Embodiment 7
The present embodiment provides a kind of extremely-low density hollow ceramsite propping agent, by the raw material of following weight parts, is made: the bauxitic clay of 41 weight parts, the manganese powder of 0.12 weight part, the coal dust of 12 weight parts.
A preparation method for the hollow ceramsite propping agent of extremely-low density, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 200～400 object single-sizes, the water that adds 50 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 800 ℃ of temperature, dry, making granularity after cooling is that 20～40 orders, density are 1.2g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 3 hours at 1200 ℃, obtain.
The ceramsite propping agent product of embodiment being made according to oil and gas industry standard < < fracturing propping agents performance test recommend method > > SY/T5108-2006 is tested, and main performance index is as follows:
| Interventions Requested | Embodiment 1 | Embodiment 2 | Embodiment 3 embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 | Technological standard |
| Volume density (g/cm 3) | 2.87 | 2.68 | 2.762.88 | 2.59 | 2.66 | 2.70 | ≤3.0 |
| Volume density (g/cm 3) | 1.17 | 1.35 | 1.261.33 | 1.19 | 1.21 | 1.24 | 1.1-1.5 |
| Turbidity (%) | 41 | 50 | 4648 | 49 | 35 | 34 | ≤100NTU |
| Acid solubility (%) | 4.7 | 5.1 | 5.14.6 | 4.9 | 5.4 | 5.6 | ≤7.0 |
| Sphericity | 0.9 | 1.0 | 0.91.1 | 1.0 | 1.1 | 0.9 | ＞0.8 |
| Circularity | 0.9 | 1.0 | 1.11.0 | 0.9 | 0.9 | 1.0 | ＞0.8 |
| Grain size (>=1.25mm) % | 0.06 | 0.08 | 0.090.07 | 0.08 | 0.07 | 0.09 | ≤0.1 |
| Grain size (1.25-0.850mm) % | 6.5 | 6.4 | 6.95.8 | 5.7 | 6.9 | 7.0 | ≤10 |
| Grain size (0.850-0.425mm) % | 92 | 93 | 9591 | 95 | 94 | 93 | ≥90 |
| Grain size (≤0.425mm) % | 1.2 | 1.8 | 1.31.4 | 1.6 | 1.4 | 1.5 | ≤2.0 |
| Percentage of damage (%) | 7 | 5 | 86 | 7 | 6 | 7 | ≤10 |
| Cracking pressure MPa | 50 | 62 | 5159 | 49 | 61 | 52 | -- |
From above data, the hollow ceramsite propping agent that the present invention makes meets every regulation of oil and gas industry standard < < fracturing propping agents performance test recommend method > >, and volume density is at 1.1～1.5g/cm
3between, be far smaller than the density of propping agent sintering ceramsite used and quartz sand in prior art.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. the hollow ceramsite propping agent of extremely-low density, is characterized in that, by the raw material of following weight parts, is made: the bauxitic clay of 35～45 weight parts, the manganese powder of 0.05～0.15 weight part, the coal dust of 5～15 weight parts.
2. the hollow ceramsite propping agent of a kind of extremely-low density according to claim 1, is characterized in that, by the raw material of following weight parts, is made: the bauxitic clay of 37～41 weight parts, the manganese powder of 0.08～0.12 weight part, the coal dust of 8～12 weight parts.
3. the hollow ceramsite propping agent of a kind of extremely-low density according to claim 1 and 2, it is characterized in that, the hollow ceramsite propping agent of described extremely-low density surface is also coated with surface coating agent, and described surface coating agent is 7.3～13% of the coated hollow ceramsite propping agent weight of extremely-low density.
4. the hollow ceramsite propping agent of a kind of extremely-low density according to claim 3, it is characterized in that, described surface coating agent is made by 3～5% resol of the hollow ceramsite propping agent weight of the extremely-low density being coated, 3～5% calcium stearate, 1～2% hexamethylenetetramine and 0.3～1 silane coupling agent.
5. a preparation method for the hollow ceramsite propping agent of extremely-low density described in claim 1～2 any one, is characterized in that, comprises the following steps:
1) bauxitic clay, manganese powder, coal dust are ground into 200～400 object single-sizes, the water that adds 45～55 weight parts stirs into liquid mixture;
2) by the liquid mixture of step 1 gained after mist projection granulating granulation, at 500～1000 ℃ of temperature, dry, making granularity after cooling is that 20～40 orders, density are 1.1～1.5g/cm
3hollow haydite;
3) by the hollow haydite of step 2 gained sintering 2～4 hours at 1100～1500 ℃, obtain.
6. the preparation method of the hollow ceramsite propping agent of a kind of extremely-low density according to claim 5, is characterized in that, further comprising the steps of:
4) the hollow ceramsite propping agent of step 3 gained extremely-low density is added in process furnace, be warming up to 200～250 ℃, continue 5-8min;
5) be then delivered in stirrer, 3～5% resol of the hollow ceramsite propping agent weight of extremely-low density that adds successively step 4 to add, 3～5% calcium stearate, 1～2% hexamethylenetetramine and 0.3～1 silane coupling agent, etc. cooling, complete, then enter sieve shaker sub-sieve, obtain.
7. the preparation method of the hollow ceramsite propping agent of a kind of extremely-low density according to claim 6, is characterized in that, adds appropriate water to accelerate curing and speed of cooling in described step 5.
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| CN201410167985.7A CN103992786A (en) | 2014-04-24 | 2014-04-24 | Ultralow-density hollow ceramsite proppant and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105131933A (en) * | 2015-09-09 | 2015-12-09 | 北京昆仑隆源石油开采技术有限公司 | Super-low density ceramic proppant and preparation method thereof |
| CN105176512A (en) * | 2015-09-09 | 2015-12-23 | 北京昆仑隆源石油开采技术有限公司 | Novel ultralow-density compound propping agent and preparation method thereof |
| CN107151554A (en) * | 2016-03-03 | 2017-09-12 | 中国科学院过程工程研究所 | For riverfrac treatment or the Superlight ceramsites proppant and preparation method of anhydrous pressure break |
| CN107418551A (en) * | 2017-06-13 | 2017-12-01 | 北京大学 | A kind of skeleton proppant for realizing macrovoid passage and its uneven spread method |
| WO2018031915A1 (en) * | 2016-08-11 | 2018-02-15 | Dynamic Material Systems Llc | Fracking proppant and method of manufacture |
| CN110344808A (en) * | 2019-07-02 | 2019-10-18 | 中国石油天然气股份有限公司 | A method of it improving compact reservoir hydraulic fracturing and effectively supports seam long |
| CN110804432A (en) * | 2019-12-02 | 2020-02-18 | 北华航天工业学院 | High-strength ultralight ceramsite proppant, preparation method and application |
| US11407687B2 (en) * | 2016-10-26 | 2022-08-09 | Dynamic Material Systems Llc | Functional composite particles |
| US11673840B2 (en) * | 2016-10-26 | 2023-06-13 | Dynamic Material Systems Llc | Complex composite particles and methods |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531893A (en) * | 2009-04-28 | 2009-09-16 | 叶俊 | Functional resin tectorial membrane proppant and preparation method thereof |
| CN102899015A (en) * | 2012-09-20 | 2013-01-30 | 宜兴市腾飞陶粒制造有限公司 | Low-density ceramic proppant prepared from fly ash and preparation method thereof |
-
2014
- 2014-04-24 CN CN201410167985.7A patent/CN103992786A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101531893A (en) * | 2009-04-28 | 2009-09-16 | 叶俊 | Functional resin tectorial membrane proppant and preparation method thereof |
| CN102899015A (en) * | 2012-09-20 | 2013-01-30 | 宜兴市腾飞陶粒制造有限公司 | Low-density ceramic proppant prepared from fly ash and preparation method thereof |
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| CN105176512A (en) * | 2015-09-09 | 2015-12-23 | 北京昆仑隆源石油开采技术有限公司 | Novel ultralow-density compound propping agent and preparation method thereof |
| CN105131933A (en) * | 2015-09-09 | 2015-12-09 | 北京昆仑隆源石油开采技术有限公司 | Super-low density ceramic proppant and preparation method thereof |
| CN105131933B (en) * | 2015-09-09 | 2018-08-10 | 北京昆仑隆源石油开采技术有限公司 | Ultra-low-density ceramic proppant and preparation method thereof |
| CN105176512B (en) * | 2015-09-09 | 2018-08-17 | 北京昆仑隆源石油开采技术有限公司 | Extremely-low density composite proppant and preparation method thereof |
| CN107151554A (en) * | 2016-03-03 | 2017-09-12 | 中国科学院过程工程研究所 | For riverfrac treatment or the Superlight ceramsites proppant and preparation method of anhydrous pressure break |
| US11104841B2 (en) * | 2016-08-11 | 2021-08-31 | Dynamic Material Systems Llc | Fracking proppant and method of manufacture |
| WO2018031915A1 (en) * | 2016-08-11 | 2018-02-15 | Dynamic Material Systems Llc | Fracking proppant and method of manufacture |
| US11673840B2 (en) * | 2016-10-26 | 2023-06-13 | Dynamic Material Systems Llc | Complex composite particles and methods |
| US11407687B2 (en) * | 2016-10-26 | 2022-08-09 | Dynamic Material Systems Llc | Functional composite particles |
| CN107418551A (en) * | 2017-06-13 | 2017-12-01 | 北京大学 | A kind of skeleton proppant for realizing macrovoid passage and its uneven spread method |
| CN107418551B (en) * | 2017-06-13 | 2019-10-08 | 北京大学 | A kind of skeleton proppant and its uneven spread method for realizing macrovoid channel |
| CN110344808A (en) * | 2019-07-02 | 2019-10-18 | 中国石油天然气股份有限公司 | A method of it improving compact reservoir hydraulic fracturing and effectively supports seam long |
| CN110804432B (en) * | 2019-12-02 | 2021-03-23 | 北华航天工业学院 | High-strength ultralight ceramsite proppant, preparation method and application |
| CN110804432A (en) * | 2019-12-02 | 2020-02-18 | 北华航天工业学院 | High-strength ultralight ceramsite proppant, preparation method and application |
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