CN104694115A - A low-density petroleum fracturing proppant and a preparing method thereof - Google Patents
A low-density petroleum fracturing proppant and a preparing method thereof Download PDFInfo
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- CN104694115A CN104694115A CN201310656133.XA CN201310656133A CN104694115A CN 104694115 A CN104694115 A CN 104694115A CN 201310656133 A CN201310656133 A CN 201310656133A CN 104694115 A CN104694115 A CN 104694115A
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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
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Abstract
A low-density petroleum fracturing proppant is disclosed. The fracturing proppant comprises 40-90 parts by weight of bauxitic rock, 5-30 parts by weight of clay and 1-30 parts by weight of an auxiliary additive, wherein the mass percentage of Al2O3 in the bauxitic rock is 30-75%. The bauxitic rock, the clay and the auxiliary additive are mixed according to a specific ratio, and then subjected to a pulverization process, a balling process and a firing process to prepare the fracturing proppant. By detection, the fracturing proppant has characteristics of wide sources of the raw materials, a low production cost, and the like. The yield and quality of pulverization are improved. The production cost is reduced. The problems in shale oil and shale gas exploitation and shallow well fracturing for petroleum and gas wells at present, namely a high fracturing propping volume density, a high apparent density, high equipment loss by fracturing, high construction costs, and the like, are overcome. A preparing method of the fracturing proppant is simple in process, easy in operation and particularly suitable for industrial production.
Description
Technical field
The present invention relates to material science, for oil and natural gas well shallow well pressure break, the petroleum fracturing propping agent of the novel hydropower fracturing technology of shale oil and shale gas exploitation, particularly relates to a kind of low density petroleum fracturing propping agent and preparation method thereof.
Background technology
Petroleum fracturing propping agent is the upholder making depths, stratum rock fracture keep state of splitting, and its role is to two walls of supporting crack, so that after stopping infusion, the crack leading to oil gas well when bottomhole wellbore pressure drops to and is less than locking pressure still keeps opening.Inject the penetrating power that fracturing propping agents can not only improve hydrocarbon zone in Oil/gas Well, increase oil and gas production, and Oil/gas Well working life can be extended.
The petroleum fracturing propping agent that the petroleum fracturing propping agent manufacturing enterprise of China produces recommends method according to China National Petroleum industry standard SY/T5108 ~ 2007<< fracturing propping agents performance index and test " by volume density and volume density be divided into low density petroleum fracturing propping agent, Midst density petroleum fracturing propping agent and high-density petroleum fracturing propping agent three series, wherein the volume density of low density petroleum fracturing propping agent is greater than 1.60g/cm
3, volume density 2.90 ~ 3.00g/cm
3.
Shale oil and shale gas refer to that main body is arranged in dark-coloured mud shale or high-carbon mud shale, to adsorb or unbound state is the Sweet natural gas of main existing way or the gathering of pool.The production technique of shale oil gas, mainly contain horizontal well multistage fracturing technique, riverfrac treatment technology, multiple fracturing technique and synchronous fracturing technique, these new fracturing technique propose new requirement for petroleum fracturing propping agent.Oneself warp of the low density petroleum fracturing propping agent specified in China National Petroleum industry standard cannot meet the exploitation of shale oil gas.In the operation of shale oil gas well fracturing, optimal petroleum fracturing propping agent demand fulfillment: (1) circularity sphericity is high, greatly can improve the flow conductivity of oil gas, improve oil and gas production: (2) ultimate compression strength is high, can ensure to support corresponding stratum, ensure the unimpeded of pressure break passage: (3) volume density is little, of the fracturing fluid carrying capacity is good, be convenient to horizontal fractures, greatly reduce energy consumption and the loss of equipment: (4) chemical stability is good simultaneously, the corrosion of oil under stratum, acid, salt, water can be resisted.
Application number be 200910102878.5 Chinese patent literature disclose a kind of manufacture method of low-density ceramic proppant, its technical scheme is with containing kaolin 62% ~ 76% and Al
20
3content is 80% ~ 85% bauxitic clay 17% ~ 30% is main raw material, with Manganse Dioxide 1% ~ 6% and magnesium oxide 0.5% ~ 2% for auxiliary material is configured, levigate to 400 orders, add water balling-up, in rotary kiln after 1310 DEG C ~ 1330 DEG C sintering, cooling and screening form.The program first balling-up difficulty, product circularity and sphericity poor, have a strong impact on flow conductivity.Secondly because main raw material adopts kaolin and Al
20
3content is 80% ~ 85% bauxitic clay, and therefore product cost is high.Application number be 200910172662.6 Chinese patent literature disclose a kind of low-density ceramic proppant and preparation method thereof, its technical scheme is for main raw material with porcelain stone 45% ~ 60% and bauxite 30% ~ 45%, add clay 3% ~ 10%, talcum powder 1% ~ 4% and precipitated barium carbonate 2% ~ 8%, through grinding to 325 orders, in balling-up pot with 1% ~ 3% complete methylated cellulose aqueous solution mist projection granulating, in rotary kiln through 1280 DEG C ~ 1350 DEG C sintering after, cooling and screening form.The volume density of this invention product is 1.62g/cm
3, volume density 2.86g/cm
3, the needs of shale oil-gas mining cannot be reached.Application number be 201010136972.5 Chinese patent literature disclose low-density ceramic proppant and preparation method thereof, its technical scheme is with bauxitic clay and coal gangue for inner core, and with bauxitic clay and trimanganese tetroxide for shell, balling-up sintering obtains.This invention is only the sintering adopting retort furnace to carry out in the lab, cannot carry out suitability for industrialized production, the resistant to breakage ability of product.Application number be 201010160351.0 Chinese patent literature disclose low-density high-strength ceramic granule propping agent and preparation method thereof, its technical scheme is with light-burned bauxitic clay, flint clay, reason pyroxene particle mixes with the weight ratio of industrial starch by 40 ~ 60:30 ~ 55:4 ~ 12:1 ~ 3, again with compound: grinding medium: the weight ratio blending agent of water=1:1.5 ~ 2.5:0.6 ~ 1, water, wet-milling 20 ~ 30 hours in ball mill, the spray-dried gained powder of abrasive slurry proceeds to granulation in tired dish nodulizer, particle after screening is sent in rotary kiln and is fired, firing temperature 1350 ~ 1450 DEG C, be incubated 1.5 ~ 2.5 hours.The prices of raw and semifnished materials that scheme adopts are high, and sintering temperature is very high causes production cost too high and quality product cannot ensure.Due to wet-milling in employing ball mill 20 ~ 30 hours, the spray-dried powder made needed for balling-up of abrasive slurry, whole pulverizing process energy consumption was high, and the powder made also cannot meet the needs of balling-up.Application number be 201110423348.8 Chinese patent literature disclose low-density ceramic proppant and preparation method thereof, its technical scheme is with bauxite, clay, potassium felspar sand, quartz, Wingdale and rhombspar for raw material, 1320 DEG C ~ 1380 DEG C temperature fire O.5 ~ 1.5h makes.The volume density of this invention product is 1.56 ~ 1.59g/cm
3, volume density 2.78 ~ 2.84g/cm
3, during locking pressure 52Mpa, percentage of damage is 4.8 ~ 5.5%, cannot reach the needs of shale oil-gas mining.
Summary of the invention
The object of the invention is: provide a kind of low density petroleum fracturing propping agent and preparation method thereof, its low production cost, quality and the production efficiency of product are high, and volume density and the volume density of product are little, to overcome the deficiencies in the prior art.
The present invention is achieved in that low density petroleum fracturing propping agent, calculates by weight, comprises bauxitic clay 40 ~ 90 parts, clay 5 ~ 30 parts and supplementary additive 1 ~ 30 part; Al in bauxitic clay
20
3mass percent be 30 ~ 75%.
Described bauxitic clay is without the mixing of one or more in the cast alumin(i)um alumina of vacation burning, the light-burned bauxitic clay of part calcination or sintered bauxite.
Described supplementary additive is one or more mixing in manganese oxide, ferric oxide, calcined alumina, magnesium oxide, feldspar, talcum, Wingdale, kaolin or quartz.
The preparation method of low density petroleum fracturing propping agent, by bauxitic clay, clay and supplementary additive carry out precomminution respectively, more than precomminution to 325 orders; The material of precomminution is carried out mix, ball milling, classification, humidification or whole operation of drenching in powder operation or several process step combinations wherein, preparing can for the powder of balling-up; Add in nodulizer by this powder, by spraying atomized water and alternately adding the powder rolling balling that flouring technology obtains, obtained circularity and sphericity reach the base ball of more than 0.80, then dry through rotary drying machine, trommel screen screening, obtain work in-process blastocyte; Burnt till by work in-process blastocyte rotary kiln, firing temperature is 1250 ~ 1360 DEG C again, firing time 1 ~ 3 hour, obtains finished product after eventually passing cooling and screening; The volume density of finished product is 1.40 ~ 1.60g/cm
3, volume density is 2.60 ~ 2.80g/cm
3.
First add nodulizer by 5 ~ 50% of obtained powder and make mother bulb, then the mother bulb made is taken out for subsequent use from nodulizer; In nodulizer, add mother bulb during balling-up, and add remaining powder, and spray atomized water, continuous rolling balling-up, obtained circularity and sphericity reach the base ball of more than 0.80, then through rotary drying machine oven dry, trommel screen screening, obtain work in-process blastocyte.
Described preparing can be crossed 400 mesh screen residues for the powder of balling-up and be not more than 20%.The standard sieve of different meshes can be selected according to actual needs, tail over and carry out in proportion converting.
Compared with prior art; the present invention adopts bauxitic clay; after clay and supplementary additive combine according to specific content; petroleum fracturing propping agent is made by flouring technology, balling technique and firing process; this propping agent is learnt through detection, and its crystalline phase composition comprises mullite (CAS1302 ~ 93 ~ 8) 60 ~ 85%, amorphous glass phase (CAS7631 ~ 86 ~ 9) 5 ~ 35% and cristobalite (CAS14464 ~ 46 ~ 1) 0 ~ 20%; Volume density 1.40 ~ the 1.60g/cm3 of product, volume density 2.60 ~ 2.80g/cm
3, percentage of damage≤5.0% when locking pressure is 7500Pa.The present invention utilize A1203 mass percentage content be the bauxitic clay of 30 ~ 75% as main raw material, there are raw material sources extensive, the features such as production cost is low; Flouring technology is improved, instead of raymond grinding powder powder-grinding technique in traditional processing technology, improve the seed output and quality of powder process, reduce production cost; Adopt the balling technique improved that the quality of balling-up and efficiency are improved all greatly; The present invention can effectively reduce petroleum fracturing propping agent production cost, and solve in the exploitation of current shale oil and shale gas, pressure break support volume density and the volume density problems such as greatly, pressure break is large to equipment attrition, and executive cost is high in oil and natural gas well shallow well pressing crack construction.Preparation method's technique of the present invention is simple, easy to operate, and very suitability for industrialized is produced.
Embodiment
Embodiment 1
Embodiments of the invention 1; Low density petroleum fracturing propping agent, calculates by weight, comprises bauxitic clay 50 parts, clay 20 parts, manganese oxide 10 parts, 10 parts, magnesium oxide, limestone powder 5 parts, Feldspar Powder 5 parts; The mass percent of the A1203 in bauxitic clay is 70%.
The preparation method of low density petroleum fracturing propping agent, by bauxitic clay, clay and supplementary additive carry out precomminution respectively, more than precomminution to 325 orders; Mixed in proportion by the material of precomminution, mixed material is pulverized in ball mill, and 400 mesh standard sieves crossed by powder, tail over and are not more than 20%; Then by humidification and drench powder operation, preparing can for the powder of balling-up; Add in nodulizer by this powder, by spraying atomized water and alternately adding the powder rolling balling that flouring technology obtains, obtained circularity and sphericity reach the base ball of more than 0.80, then dry through rotary drying machine, trommel screen screening, obtain work in-process blastocyte; Burnt till by work in-process blastocyte rotary kiln, firing temperature is 1250 ~ 1360 DEG C again, firing time 1 ~ 2 hour, obtains finished product after eventually passing cooling and screening; The volume density of finished product is 1.58g/cm after testing
3, volume density is 2.79g/cm
3, percentage of damage≤3.51% when locking pressure is 7500Psi.
Sieve gets a certain amount of product of the present invention, and by X-ray diffraction analysis, the crystalline phase of the low density petroleum fracturing propping agent of the present embodiment is composed as follows:
Mullite (CAS1302 ~ 93 ~ 8): 80%;
Amorphous glass phase (CAS7631 ~ 86 ~ 9): 19%;
Cristobalite (CAS14464 ~ 46 ~ 1): 1%.
Embodiment 2
Low density petroleum fracturing propping agent, calculates by weight, wherein bauxitic clay 60 parts, clay 20 parts, manganese oxide 10 parts, limestone powder 3 parts, Feldspar Powder 7 parts.The mass percent of the A1203 in bauxitic clay is 65%.
The preparation method of low density petroleum fracturing propping agent, by bauxitic clay, clay and supplementary additive carry out precomminution respectively, more than precomminution to 325 orders; Mixed in proportion by the material of precomminution, mixed material is pulverized and classification in ball mill, and 400 mesh standard sieves crossed by powder, tail over and are not more than 20%, and preparing can for the powder of balling-up; Add nodulizer by 25% of obtained powder and obtain mother bulb, the mother bulb made takes out from nodulizer; In nodulizer, add mother bulb during balling-up, according to blastocyte growth need add remaining powder, and spray atomized water; continuous rolling balling-up; obtained circularity and sphericity reach the base ball of more than 0.80, then through rotary drying machine oven dry, trommel screen screening, obtain work in-process blastocyte; Burnt till by work in-process blastocyte rotary kiln, firing temperature is 1250 ~ 1360 DEG C again, firing time 1 ~ 2 hour, obtains finished product after eventually passing cooling and screening; The volume density of finished product is 1.54g/cm after testing
3, volume density is 2.75g/cm
3, percentage of damage 3.85% when locking pressure is 7500Psi.
Sieve gets a certain amount of product of the present invention, and by X-ray diffraction analysis, the crystalline phase of the low density petroleum fracturing propping agent of the present embodiment is composed as follows:
Mullite (CAS1302 ~ 93 ~ 8): 76%;
Amorphous glass phase (CAS7631 ~ 86 ~ 9): 21%;
Cristobalite (CAS14464 ~ 46 ~ 1): 3%
Embodiment 3
Low density petroleum fracturing propping agent, calculates by weight, wherein bauxitic clay 65 parts, clay 15 parts, 10 parts, magnesium oxide, talcum powder 5 parts, limestone powder 2 parts.The mass percent of the A1203 in bauxitic clay is 60%.The preparation method of low density petroleum fracturing propping agent, by bauxitic clay, clay and supplementary additive carry out precomminution respectively, more than precomminution to 325 orders; Mixed in proportion by the material of precomminution, 400 mesh standard sieves crossed by mixed material, tail over and are not more than 20%, and preparing can for the powder of balling-up; Add in nodulizer by this powder, by spraying atomized water and alternately adding the powder rolling balling that flouring technology obtains, obtained circularity and sphericity reach the base ball of more than 0.80, then dry through rotary drying machine, trommel screen screening, obtain work in-process blastocyte; Burnt till by work in-process blastocyte rotary kiln, firing temperature is 1250 ~ 1360 DEG C again, firing time 2 ~ 3 hours, and obtain finished product after eventually passing cooling and screening, the volume density of finished product is 1.45g/cm after testing
3, volume density is 2.65g/cm
3, percentage of damage 6.13% when locking pressure is 7500Psi.
Sieve gets a certain amount of product of the present invention, and by X-ray diffraction analysis, the crystalline phase of the low density petroleum fracturing propping agent of the present embodiment is composed as follows:
Mullite (CAS1302 ~ 93 ~ 8): 65%;
Amorphous glass phase (CAS7631 ~ 86 ~ 9): 25%;
Cristobalite (CAS14464 ~ 46 ~ 1): 10%.
Claims (6)
1. a low density petroleum fracturing propping agent, is characterized in that: calculate by weight, comprises bauxitic clay 40 ~ 90 parts, clay 5 ~ 30 parts and supplementary additive 1 ~ 30 part; Al in bauxitic clay
20
3mass percent be 30 ~ 75%.
2. low density petroleum fracturing propping agent according to claim 1, is characterized in that: described bauxitic clay is cast alumin(i)um alumina, the part of burning without vacation; The mixing of one or more in the false light-burned bauxitic clay that burns or sintered bauxite.
3. low density petroleum fracturing propping agent according to claim 1, is characterized in that: described supplementary additive is one or more in manganese oxide, ferric oxide, calcined alumina, magnesium oxide, feldspar, talcum, Wingdale, kaolin or quartz.
4. a preparation method for low density petroleum fracturing propping agent as claimed in claim 1, is characterized in that: by bauxitic clay, and clay and supplementary additive carry out precomminution respectively, more than precomminution to 325 orders; The material of precomminution is carried out mix, ball milling, classification, humidification or whole operation of drenching in powder operation or several process step combinations wherein, preparing can for the powder of balling-up; Add in nodulizer by this powder, by spraying atomized water and alternately adding the powder rolling balling that flouring technology obtains, obtained circularity and sphericity reach the base ball of more than 0.80, then dry through rotary drying machine, trommel screen screening, obtain work in-process blastocyte; Burnt till by work in-process blastocyte rotary kiln, firing temperature is 1250 ~ 1360 DEG C again, firing time 1 ~ 3 hour, obtains finished product after eventually passing cooling and screening; The volume density of finished product is 1.40 ~ 1.60g/cm
3, volume density is 2.60 ~ 2.80g/cm
3.
5. the preparation method of low density petroleum fracturing propping agent according to claim 4, is characterized in that: first add nodulizer by 5 ~ 50% of obtained powder and make mother bulb, then take out for subsequent use from nodulizer by the mother bulb made; In nodulizer, add mother bulb during balling-up, and add remaining powder, and spray atomized water, continuous rolling balling-up, obtained circularity and sphericity reach the base ball of more than 0.80, then through rotary drying machine oven dry, trommel screen screening, obtain work in-process blastocyte.
6. the preparation method of low density petroleum fracturing propping agent according to claim 4, is characterized in that: described preparing can cross 400 mesh standard sieves for the powder of balling-up, tails over and is not more than 20%.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018067A (en) * | 2015-08-03 | 2015-11-04 | 张希君 | Ceramsite proppant and preparation method thereof |
| CN106220136A (en) * | 2016-07-28 | 2016-12-14 | 成都高普石油工程技术有限公司 | A kind of petroleum fracturing propping agent of effective reduction apparent density |
| CN106220135A (en) * | 2016-07-28 | 2016-12-14 | 成都高普石油工程技术有限公司 | Effectively reduce the preparation technology of the petroleum fracturing propping agent of apparent density |
| CN106947458A (en) * | 2017-05-10 | 2017-07-14 | 郑州市润宝耐火材料有限公司 | Forsterite proppant and preparation method thereof |
| CN106967409A (en) * | 2017-05-10 | 2017-07-21 | 郑州市润宝耐火材料有限公司 | Fracturing propping agents and preparation method thereof |
| CN107266045A (en) * | 2017-06-16 | 2017-10-20 | 太原科技大学 | A kind of corundum-mullite ceramsite propping agent and preparation method thereof |
| CN107721392A (en) * | 2017-09-28 | 2018-02-23 | 神华集团有限责任公司 | Fracturing propping agents composition and fracturing propping agents and preparation method thereof |
| CN108706960A (en) * | 2018-07-10 | 2018-10-26 | 山西富森能源科技有限公司 | Low-density and high-strength ceramic proppant is made using bauxite tailing and flyash |
| CN110028947A (en) * | 2019-05-15 | 2019-07-19 | 山西金宇科林科技有限公司 | High-strength low close petroleum fracturing propping agent and preparation method are prepared using Coaseries kaolin |
| CN111362718A (en) * | 2020-04-24 | 2020-07-03 | 郑州市熔盛耐材助剂有限公司 | Preparation method of low-density high-strength ceramsite proppant |
| CN112225548A (en) * | 2020-10-20 | 2021-01-15 | 西安工程大学 | Low-density high-strength ceramsite proppant and preparation method thereof |
| CN114133223A (en) * | 2022-01-07 | 2022-03-04 | 山东理工大学 | Energy-saving and environment-friendly low-cost ceramsite proppant and preparation method thereof |
| WO2023173576A1 (en) * | 2022-03-18 | 2023-09-21 | 河南天祥新材料股份有限公司 | Ceramic tracing proppant |
-
2013
- 2013-12-05 CN CN201310656133.XA patent/CN104694115A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105018067B (en) * | 2015-08-03 | 2018-03-09 | 张希君 | A kind of ceramsite propping agent and preparation method thereof |
| CN105018067A (en) * | 2015-08-03 | 2015-11-04 | 张希君 | Ceramsite proppant and preparation method thereof |
| CN106220136A (en) * | 2016-07-28 | 2016-12-14 | 成都高普石油工程技术有限公司 | A kind of petroleum fracturing propping agent of effective reduction apparent density |
| CN106220135A (en) * | 2016-07-28 | 2016-12-14 | 成都高普石油工程技术有限公司 | Effectively reduce the preparation technology of the petroleum fracturing propping agent of apparent density |
| CN106947458A (en) * | 2017-05-10 | 2017-07-14 | 郑州市润宝耐火材料有限公司 | Forsterite proppant and preparation method thereof |
| CN106967409A (en) * | 2017-05-10 | 2017-07-21 | 郑州市润宝耐火材料有限公司 | Fracturing propping agents and preparation method thereof |
| CN107266045A (en) * | 2017-06-16 | 2017-10-20 | 太原科技大学 | A kind of corundum-mullite ceramsite propping agent and preparation method thereof |
| CN107721392A (en) * | 2017-09-28 | 2018-02-23 | 神华集团有限责任公司 | Fracturing propping agents composition and fracturing propping agents and preparation method thereof |
| CN108706960A (en) * | 2018-07-10 | 2018-10-26 | 山西富森能源科技有限公司 | Low-density and high-strength ceramic proppant is made using bauxite tailing and flyash |
| CN110028947A (en) * | 2019-05-15 | 2019-07-19 | 山西金宇科林科技有限公司 | High-strength low close petroleum fracturing propping agent and preparation method are prepared using Coaseries kaolin |
| CN111362718A (en) * | 2020-04-24 | 2020-07-03 | 郑州市熔盛耐材助剂有限公司 | Preparation method of low-density high-strength ceramsite proppant |
| CN112225548A (en) * | 2020-10-20 | 2021-01-15 | 西安工程大学 | Low-density high-strength ceramsite proppant and preparation method thereof |
| CN114133223A (en) * | 2022-01-07 | 2022-03-04 | 山东理工大学 | Energy-saving and environment-friendly low-cost ceramsite proppant and preparation method thereof |
| WO2023173576A1 (en) * | 2022-03-18 | 2023-09-21 | 河南天祥新材料股份有限公司 | Ceramic tracing proppant |
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Application publication date: 20150610 |