CN102618251A - Low-density high-strength petroleum fracturing propping agent ceramsite and preparation method thereof - Google Patents
Low-density high-strength petroleum fracturing propping agent ceramsite and preparation method thereof Download PDFInfo
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- CN102618251A CN102618251A CN2012100683023A CN201210068302A CN102618251A CN 102618251 A CN102618251 A CN 102618251A CN 2012100683023 A CN2012100683023 A CN 2012100683023A CN 201210068302 A CN201210068302 A CN 201210068302A CN 102618251 A CN102618251 A CN 102618251A
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- low
- haydite
- corundum
- brown corundum
- propping agent
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Abstract
The invention discloses low-density high-strength petroleum fracturing propping agent ceramsite and a preparation method thereof. According to used raw materials, a weight ratio of glass phase-enriched low bauxite to brown fused alumina dust wastes in a ceramsite inner core is (80-20):20:80; and a weight ratio of corundum-enriched low bauxite to brown fused alumina dust collection micro powder to brown fused alumina tailings to titanium dioxide to manganous-manganic oxide in a ceramsite shell is (70-80):(10-8):(10-12):(5-2):(5-3), wherein the Al2O3content in the low bauxite is 60 to 65 percent; main ingredients of brown fused alumina smelting wastes are Al2O3, K2O, Na2O, SiO2 and Fe2O3; the content of Al2O3 in the brown fused alumina dust collection micro powder is 80 to 85 percent; and the Al2O3content in the brown fused alumina tailings is 72 to 80 percent.
Description
Technical field
The present invention relates to a kind of low-density high-strength petroleum fracturing propping agent haydite and preparation method thereof, belong to the oil-gas mining field.
Background technology
Petroleum fracturing propping agent is widely used among the production practice of deep-seated oil, gas, can improve the adopted rate and the output of oil gas.It is the important factor that promotes pressing crack construction efficient that suitable oil fracturing supports, and effective support of deep-seated oil gas well increases the water conservancy diversion property on stratum, improves the output of oil or gas.At present, domestic fracturing propping agents silica sand low price commonly used, specific density is lower, is convenient to pumping construction.But silica sand intensity is low, and circularity and sphericity are poor, and percentage of damage is high, thereby has reduced fissured flow conductivity, is not suitable for the high deep-well of locking pressure.Sintering ceramsite intensity is high, and degree of sphericity is good, is the preferred kinds of fracturing propping agents, is little by little promoting the use.But the haydite specific density is higher, and pumping condition and fracturing technology are had higher requirement, and has strengthened difficulty of construction, in construction, causes the accumulation in the port easily, and is unfavorable to water conservancy diversion, bigger to fuel-displaced influential effect of later stage.Comparatively speaking, low-density propping agent is difficult for deposition because density is moderate, and suspension is good, is convenient to pumping and carries, and can reduce of the fracturing fluid viscosity significantly, reduces the injury to pump, can realize clean fracturing, reduces difficulty of construction and cost effectively.Because low-density propping agent water conservancy diversion lapse rate is lower, can promote the oil recovery effect, therefore, low-density high-strength degree petroleum fracturing propping agent has become R&D direction.
The present situation of China's Aluminum alumina is: the mass ratio of Chinese bauxite is relatively poor, and in retained reserve, ore proportions at different levels are following:
First-class ore (Al
20
360%～70%, Al/si>=12) only account for 1.5%
Milling ore (Al
20
351%～71%, Al/si>=9) only account for 17%
Three grades of ore (Al
20
362%～69%, Al/si>=7) only account for 11.3%
Level Four ore (Al
20
3＞62%, Al/si>=5) only account for 27.9%
Pyatyi ore (Al
20
3＞58%, Al/si>=4) only account for 18%
Six grades of ore (Al
20
3＞54%, Al/si>=3) only account for 8.3%
Seven grades of ore (Al
20
3＞48%, Al/si>=6) only account for 1.5%
Be accompanied by the extensive release of domestic aluminum oxide production capacity, China's bauxitic clay resource was rare relatively in addition, by 2008; China's aluminium vanadine reserves are 8.7 hundred million tons; Only account for 2.3% of global basis reserves, it is global 10% that product accounts for, according to existing reserves and mining level; Domestic bauxite only can only be held 10 years, and bauxite resource faces a crisis.
The existing situation of using the bauxitic clay starting material to produce petroleum fracturing propping agent of China is following:
The ripe ore deposit Al of the used bauxitic clay of preparation of Chinese patent CN108124315A propping agent
2O
3>=94 %, raw bauxite Al
2O
3＞75%;
The Chinese patent 891025448 bauxitic clay rawore Al that uses
2O
365～75 %;
The employed starting material of Chinese patent CN101168660A are waste alumina adsorbent A l
2O
3>=75 %;
Chinese patent CN01108604.1 does not burn bauxitic clay Al
2O
3>=75 %;
The used bauxitic clay rawore of Chinese patent CN101560381A Al
2O
3>=70 %;
The ripe ore deposit Al of Chinese patent bauxitic clay that CN108124315A uses
2O
390～98 %, raw bauxite 70～78%;
Having relatively high expectations to aluminium sesquioxide in the above technology.At present, produce the high strength petroleum pressure break both at home and abroad and use haydite Al
2O
3>=70 %; Use the higher-grade bauxitic clay mostly.How to use low-grade bauxite to produce the high strength petroleum pressure break and use haydite, fully and rationally utilize national resource, become this area technical barrier anxious to be solved.
Summary of the invention
The technical problem that the present invention will solve is; A kind of low-density high-strength petroleum fracturing propping agent haydite and preparation method thereof is provided; Can make haydite with low-density high-strength characteristics; The purposes that adapts to the deep-seated oil gas well fracturing that locking pressure is high, penetrating power is low is to overcome the deficiencies such as employed higher-grade bauxitic clay scarcity of raw material that prior art exists.
The employed raw material of low-density high-strength petroleum fracturing propping agent haydite of the present invention is: the employed raw material weight ratio of haydite inner core is: with the low bauxitic clay of glassy phase enrichment and the weight ratio of brown alundum powder dirt waste material be: 80～20:20:80; The employed raw material weight ratio of haydite shell is: with the gather dust weight ratio of micro mist, brown corundum tailing, titanium oxide, trimanganese tetroxide of the low bauxitic clay of corundum phase enrichment and brown corundum be: 70～80:10～8:10～12:5～2:5～3; Al in the described low bauxitic clay
2O
3Content is 60-65% (weight content).
The bauxitic clay place of production is area, the southeast of Guizhou Province, Guizhou Province.
Palm fibre corundum smelting waste material: refer to the tobacco powder gleanings that in brown corundum smelting, produces, its staple is Al
2O
3, K
2O
,Na
2O
,SiO
2And Fe
2O
3, annual every brown corundum smelting stove has 100 tons of powder that gather dust.
The palm fibre corundum micro mist that gathers dust: refer to produce in the brown corundum granulation production process that it mainly contains trickle degree material of brown corundum and koniology, this micro mist Al
2O
3Content is recycled between 80-85 %.
Palm fibre corundum tailing: refer to brown corundum remaining-325 order differential that contain more impurity in the processing of granulating, it is before the deironing, this micro mist Al
2O
3Content is recycled between 72-80 %.
The making method of low-density high-strength petroleum fracturing propping agent haydite of the present invention is: it comprises following process:
The first, with Al
2O
3Content is 60～65% bauxitic clay rawores through 700 ℃ of calcining insulations 3 hours, be crushed to behind the naturally cooling≤0.074mm, through sub-sieve obtain 0.012～0.074mm corundum compare the bauxitic clay grog of enrichment be ground to≤350 orders are as the A material;
The second ,≤0.012mm glassy phase than the bauxitic clay grog of enrichment be ground to≤350 orders are as the B material;
The 3rd, make the haydite inner core with the low bauxitic clay B material and the brown corundum smelting waste material compound of glassy phase enrichment, be about to B material and brown corundum smelting waste material and mix, water spray or sodium silicate aqueous solution balling-up form the 0.25-0.3mm inner core on nodulizer,
The 4th; Gather dust micro mist, brown corundum tailing, titanium oxide, trimanganese tetroxide compound of low bauxitic clay A material and the brown corundum of comparing enrichment with corundum made the haydite shell; After promptly forming inner core, in water spray or sodium silicate aqueous solution process, add A material and titanium oxide, gather dust micro mist and brown corundum tailing, trimanganese tetroxide mixture of brown corundum forms shell; Spheroid is increased to needs granularity, is haydite;
The 5th, haydite earlier 100-300 ℃ of oven dry down, is got in the rotary kiln and was warming up to 1300-1400 ℃ of roasting 2-4 hour, sub-sieve obtains all size haydite after being water-cooled to normal temperature and getting into feed bin.
Said spheroid particle diameter is 0.6～0.90 mm.
Bauxitic clay B material with the weight ratio of mark corundum dust waste material is in the said inner core: 80～20:20:80.
The gather dust weight ratio of micro mist, brown corundum tailing, titanium oxide, trimanganese tetroxide of bauxitic clay A material and brown corundum is in the said shell: 70～80:10～8:10～12:5～2:5～3.
Said nodulizer is that disc type material water is with combining automatic nodulizer.
Beneficial effect of the present invention is following:
1. solve the often high deficiency of density of high-strength ceramsite;
2. solve with low-grade replacement higher-grade bauxitic clay production high strength petroleum pressure break and use haydite;
3. utilize a large amount of waste materials and the tailing that produce in brown corundum smelting and the brown corundum abrasive production process, resource is made full use of, reduce the brown corundum powder that gathers dust and stack to appropriation of land with to the pollution of environment.
4. successful use is produced the low-density high-strength petroleum fracturing propping agent than low-grade bauxite.Generally speaking, the most intensity of low density petroleum fracturing propping agent is not high, and the haydite percentage of damage is high, is difficult to adapt to the requirement of deep-well to haydite " low-density high-strength ".
Embodiment
Embodiments of the invention: the employed raw material of low-density high-strength petroleum fracturing propping agent haydite of the present invention is: the employed raw material weight ratio of haydite inner core is: with the low bauxitic clay of glassy phase enrichment and the weight ratio of brown alundum powder dirt waste material be: 80～20:20:80; The employed raw material weight ratio of haydite shell is: with the gather dust weight ratio of micro mist, brown corundum tailing, titanium oxide, trimanganese tetroxide of the low bauxitic clay of corundum phase enrichment and brown corundum be: 70～80:10～8:10～12:5～2:5～3; Al in the wherein low bauxitic clay
2O
3Content is 60-65% (weight content).
The bauxitic clay place of production is area, the southeast of Guizhou Province, Guizhou Province.
Palm fibre corundum smelting waste material: refer to the tobacco powder gleanings that in brown corundum smelting, produces, its staple is Al
2O
3, K
2O
,Na
2O
,SiO
2And Fe
2O
3, annual every brown corundum smelting stove has 100 tons of powder that gather dust.
The palm fibre corundum micro mist that gathers dust: refer to produce in the brown corundum granulation production process that it mainly contains trickle degree material of brown corundum and koniology, this micro mist Al
2O
3Content is recycled between 80-85 %.
Palm fibre corundum tailing: refer to brown corundum remaining-325 order differential that contain more impurity in the processing of granulating, it is before the deironing, this micro mist Al
2O
3Content is recycled between 72-80 %.
The embodiment one of the making method of low-density high-strength petroleum fracturing propping agent haydite: put into dribbling balling machine after low bauxitic clay of 8kg glassy phase enrichment and the brown corundum smelting waste material of 2kg (dirt powder) mixed and rotate in mixer; Slowly spray into concentration and be 0.2% sodium silicate aqueous solution rotation balling-up; Make the 0.25-0.3mm inner core; Then in the water spray process, progressively add low bauxitic clay of corundum phase enrichment and brown corundum gather dust micro mist, brown corundum tailing, titanium oxide and trimanganese tetroxide mixture; (bauxitic clay 8kg, brown corundum gather dust micro mist 0.8kg, corundum tailing 1.2kg, titanium oxide 0.2kg, trimanganese tetroxide 0.3kg) progressively increases spheroid, and particle diameter is controlled at the material grain between the 0.6-0.9mm; 100-300 ℃ of oven dry down; Put into silit and burn alms bowl, in tunnel, be warming up to 1300-1400 ℃ of roasting 3 hours, surveying its density behind the naturally cooling is 1.68g/cm
3, volume density is 2.84g/cm
3Anti-breaking capacity 69Mpa5%.
The embodiment two of the making method of low-density high-strength petroleum fracturing propping agent haydite: 7kg glassy phase enriched in aluminum alumina and 3kg palm fibre corundum smelting waste material (dirt powder) mixed in mixer put into dribbling balling machine and rotate; Slowly spray into concentration and be 0.3% sodium silicate aqueous solution rotation balling-up; Make 0.25～0.30mm inner core; Then in the water spray process, progressively adding gather dust micro mist, brown corundum tailing, titanium oxide and trimanganese tetroxide mixture (bauxitic clay 7kg palm fibre corundum gather dust micro mist 1kg, brown corundum tailing 1kg, titanium oxide 0.5kg, trimanganese tetroxide 0.5kg) of corundum phase enriched in aluminum alumina and brown corundum progressively increases spheroid; Grain is through being controlled at the material grain between 0.6～0.9mm; 100～300 ℃ of oven dry down; Put into silit and burn alms bowl, in tunnel, be warming up to 1300～1400 ℃ of roastings 3 hours, surveying its density behind the naturally cooling is 1.74g/cm
3, volume density is 2.90g/cm
3Anti-breaking capacity 69Mpa3%.
Claims (9)
1. low-density high-strength petroleum fracturing propping agent haydite, it is characterized in that: the employed raw material weight ratio of haydite inner core is: with the low bauxitic clay of glassy phase enrichment and the weight ratio of brown alundum powder dirt waste material be: 80～20:20:80; The employed raw material weight ratio of haydite shell is: with the gather dust weight ratio of micro mist, brown corundum tailing, titanium oxide, trimanganese tetroxide of the low bauxitic clay of corundum phase enrichment and brown corundum be: 70～80:10～8:10～12:5～2:5～3; Al in the described low bauxitic clay
2O
3Content is 60-65%.
2. low-density high-strength petroleum fracturing propping agent haydite according to claim 1 is characterized in that: brown corundum smelting waste material staple is Al
2O
3, K
2O
,Na
2O
,SiO
2And Fe
2O
3
3. low-density high-strength petroleum fracturing propping agent haydite according to claim 1 is characterized in that: the brown corundum Al in the micro mist that gathers dust
2O
3Content is between 80-85 %.
4. low-density high-strength petroleum fracturing propping agent haydite according to claim 1 is characterized in that: the Al in the brown corundum tailing
2O
3Content is between 72-80 %.
5. the making method of a low-density high-strength petroleum fracturing propping agent haydite as claimed in claim 1, it is characterized in that: it comprises following process:
The first, with Al
2O
3Content is 60～65% bauxitic clay rawores through 700 ℃ of calcining insulations 3 hours, be crushed to behind the naturally cooling≤0.074mm, through sub-sieve obtain 0.012～0.074mm corundum compare the bauxitic clay grog of enrichment be ground to≤350 orders are as the A material;
The second ,≤0.012mm glassy phase than the bauxitic clay grog of enrichment be ground to≤350 orders are as the B material;
The 3rd, make the haydite inner core with the low bauxitic clay B material and the brown corundum smelting waste material compound of glassy phase enrichment, be about to B material and brown corundum smelting waste material and mix, water spray or sodium silicate aqueous solution balling-up form the 0.25-0.3mm inner core on nodulizer,
The 4th; Make the haydite shell with gather dust micro mist, brown corundum tailing, titanium oxide, trimanganese tetroxide compound of the low bauxitic clay A material of corundum phase enrichment and brown corundum; After promptly forming inner core, in water spray or sodium silicate aqueous solution process, add A material and titanium oxide, gather dust micro mist and brown corundum tailing, trimanganese tetroxide mixture of brown corundum forms shell; Spheroid is increased to needs granularity, is haydite;
The 5th, haydite earlier 100-300 ℃ of oven dry down, is got in the rotary kiln and was warming up to 1300-1400 ℃ of roasting 2-4 hour, sub-sieve obtains all size haydite after being water-cooled to normal temperature and getting into feed bin.
6. the making method of low-density high-strength petroleum fracturing propping agent haydite according to claim 5 is characterized in that: said spheroid particle diameter is 0.6～0.90 mm.
7. the making method of low-density high-strength petroleum fracturing propping agent haydite according to claim 5 is characterized in that: bauxitic clay B material with the weight ratio of mark corundum dust waste material is in the said inner core: 80～20:20:80.
8. the making method of low-density high-strength petroleum fracturing propping agent haydite according to claim 5 is characterized in that: the gather dust weight ratio of micro mist, brown corundum tailing, titanium oxide, trimanganese tetroxide of bauxitic clay A material and brown corundum is in the said shell: 70～80:10～8:10～12:5～2:5～3.
9. the making method of low-density high-strength petroleum fracturing propping agent haydite according to claim 5 is characterized in that: said nodulizer is that disc type material water is with combining automatic nodulizer.
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|---|---|---|---|
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Cited By (6)
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|---|---|---|---|---|
| CN103555316A (en) * | 2013-10-29 | 2014-02-05 | 孝义市鑫腾矿业有限公司 | Ceramsite proppant for exploitation and fracturing of shale oil and gas, as well as preparation method of ceramsite proppant |
| CN107216868A (en) * | 2017-07-04 | 2017-09-29 | 新密市万力实业发展有限公司 | A kind of VHD superhigh intensity ceramsite propping agent and preparation method thereof |
| CN110079296A (en) * | 2019-05-20 | 2019-08-02 | 陈海斗 | A kind of preparation method of low-density and high-strength ceramic proppant |
| CN110217987A (en) * | 2019-06-18 | 2019-09-10 | 陈彦霖 | A kind of Ultralight inertia spherical protective agent and preparation method thereof |
| 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 |
| CN112500170A (en) * | 2020-12-21 | 2021-03-16 | 西南石油大学 | Low-density silicon carbide-based complex-phase ceramsite proppant and preparation method thereof |
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| CN110217987A (en) * | 2019-06-18 | 2019-09-10 | 陈彦霖 | A kind of Ultralight inertia spherical protective agent and preparation method thereof |
| 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 |
| CN112500170A (en) * | 2020-12-21 | 2021-03-16 | 西南石油大学 | Low-density silicon carbide-based complex-phase ceramsite proppant and preparation method thereof |
| CN112500170B (en) * | 2020-12-21 | 2021-11-30 | 西南石油大学 | Low-density silicon carbide-based complex-phase ceramsite proppant and preparation method thereof |
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Application publication date: 20120801 |