CN102910897A - Medium density propping agent used in waste ceramsite recycling production and preparation method thereof - Google Patents
Medium density propping agent used in waste ceramsite recycling production and preparation method thereof Download PDFInfo
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- CN102910897A CN102910897A CN2012103961590A CN201210396159A CN102910897A CN 102910897 A CN102910897 A CN 102910897A CN 2012103961590 A CN2012103961590 A CN 2012103961590A CN 201210396159 A CN201210396159 A CN 201210396159A CN 102910897 A CN102910897 A CN 102910897A
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Abstract
The invention relates to a medium density propping agent used in waste ceramsite recycling production and a preparation method thereof. The medium density propping agent is prepared from the following raw materials in percent by weight: 80-90% of bauxite, 5-15% of waste ceramsite powder and 5-10% of fluxing agent. According to the medium density propping agent and the preparation method thereof which are disclosed by the invention, waste ceramsite produced in a production process is recycled, resource is saved, environmental pollution is reduced, product cost is reduced, and a product produced by adopting the preparation method disclosed by the invention completely meets the national quality standard. Meanwhile, lithium hydrate or a mixture of lithium hydrate and manganese powder is adopted as the fluxing agent besides the manganese powder, and the ceramsite propping agent prepared by adopting the lithium hydrate as the fluxing agent is lower in breaking rate. The lithium hydrate has single chemical components, so that fluctuation of quality of the ceramsite propping agent can not be caused owning to unstable chemical components of the fluxing agent.
Description
Technical field
The invention belongs to inorganic non-metallic stupalith field, be specifically related to middle density proppant of a kind of useless haydite recycling production and preparation method thereof.
Background technology
Petroleum fracturing propping agent (ceramsite sand) is a kind of ceramic particle product, has very high pressure break intensity, is mainly used in oil, the support of down-hole, gas field, to increase the output of oil and gas, belongs to environmentfriendly products.This product is the substitute of low strength propping agent in natural siliceous sand, glass sphere, the Metal Ball etc., and the volume increase oil and gas is had good result.
During the oil and gas deep mining, high locking pressure deposits of low permeability splits Oil gas-containing rock layer after fracture treatment, and oil gas compiles from the passage that the crack forms.Enter Filling with petroleum fracturing propping agent in rock crack in company with high-pressure solution, play support the crack not stress discharge and closed effect, thereby keep high flow conductivity, make oil gas unimpeded, increase output.Facts have proved, use the oil well of petroleum fracturing propping agent pressure break can improve output 30-50%, can also prolong the Oil/gas Well length of service, is the critical material of oil, the exploitation of Sweet natural gas low-permeability oil gas well, construction.When product application is constructed in deep well fracturing, fill it in the rock crack in hyposmosis mineral deposit, carry out high closed fracture treatment, Oil gas-containing rock layer is split, play support the crack not stress discharge and closed, thereby keep the high flow conductivity of oil gas, not only can increase oil and gas production, and more can prolong the Oil/gas Well length of service.
Usually people's custom is divided into three kinds with propping agent density: low density, middle density and high-density are respectively 1.65 g/cm with volume density and volume density generally speaking
3Below and 3.0 g/cm
3Hereinafter referred to as low-density propping agent; 1.65 g/cm
3～1.80 g/cm
3With 3.00 g/cm
3～3.35g/cm
3Be middle density proppant; 1.80g/cm
3More than and 3.35 g/cm
3It more than is high density proppants.
The enterprise of domestic product propping agent in process of production, because the difference of technique of management and administration can produce the waste product haydite about 5% ~ 20%, has generally abandoned it.This has had very big weakening to productive efficiency and benefit; And the processing environmental pollution of waste product haydite.Therefore need to provide a kind of technical scheme that the waste product haydite that produces in the production process is carried out cycling and reutilization.
Summary of the invention
The middle density proppant that the object of the present invention is to provide a kind of useless haydite recycling to produce.
Another object of the present invention is to provide the preparation method of the middle density proppant that a kind of useless haydite recycling produces.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of middle density proppant that utilizes useless haydite to produce, it is by weight percentage composition meter, this propping agent comprises following raw material: bauxitic clay 80% ~ 90%, useless haydite powder 5% ~ 15% and fusing assistant 5% ~ 10%.
Described fusing assistant comprises at least a in manganese powder and the lithium hydroxide.
The weight percentage of main chemical compositions is in the described bauxitic clay: Al
2Content 65% ~ 78%, Si content 4%-12%, Fe content 1% ~ 7%, Ti content 2% ~ 4%.The granularity of described bauxitic clay is preferably 300 ~ 600 orders.
Manganese powder of the present invention is the manganese ore stone flour, and the weight percentage of main chemical compositions is in the described manganese powder: manganese content 55% ~ 65%, Si content 10% ~ 20%.
The granularity of described useless haydite powder is preferably 300 ~ 600 orders.
The granularity of described fusing assistant is preferably 300 ~ 1000 orders.
The middle density proppant that the useless haydite of above-mentioned utilization is produced, it is to adopt the following steps preparation:
(1) will give up haydite in grinding in ball grinder, it is for subsequent use to reach the 300-600 order;
(2) bauxitic clay, useless haydite powder and fusing assistant are mixed obtain mixture in proportion;
(3) mixture is put in the tablets press granulated, obtain the haydite base substrate; Use spray method to add water, amount of water is 10% ~ 20% of mixture weight;
(4) with haydite base substrate screening post-drying, then 1280 ~ 1360 ℃ of lower calcining insulations 2 ~ 4 hours, obtain density ceramic proppant in the high strength.
The preparation method of the middle density proppant that the useless haydite of above-mentioned utilization is produced, it is may further comprise the steps:
(1) will give up haydite in grinding in ball grinder, it is for subsequent use to reach the 300-600 order;
(2) bauxitic clay, useless haydite powder and fusing assistant are mixed obtain mixture in proportion;
(3) mixture is put in the tablets press granulated, obtain the haydite base substrate; Use spray method to add water, amount of water is 10% ~ 20% of mixture weight;
(4) with haydite base substrate screening post-drying, then 1280 ~ 1360 ℃ of lower calcining insulations 2 ~ 4 hours, obtain density ceramic proppant in the high strength.
The present invention selects to adopt the ball-milling processing technology, and it is extremely more thin better to waste product haydite ball milling to substitute thunder illiteracy crushing technology, but meticulous meeting increases cost, so the granularity of the haydite powder that gives up is preferably the 300-600 order; Then stir with bauxitic clay raw material and fusing assistant, premix, recycle has had the benefit of enterprise to significantly improve, and to improving environment raising has been arranged, and accomplish to make the best use of everything, and the propping agent of producing meets national standard fully.
Beneficial effect of the present invention:
Product of the present invention and method are that the haydite waste product that produces in the production process carries out cycling and reutilization, economize on resources, and environmental contamination reduction reduces product cost, and the product that adopts the method to produce meets state quality standard fully.
Simultaneously the present invention has also adopted the mixture of lithium hydroxide or lithium hydroxide and manganese powder as fusing assistant except adopting manganese powder, adopts lithium hydroxide lower as the ceramsite propping agent percentage of damage of fusing assistant preparation.And because the lithium hydroxide chemical ingredients is single, can be owing to the unstable fluctuation that causes the ceramsite propping agent quality of fusing assistant chemical ingredients.
Embodiment
Embodiment 1
The raw material of percentage composition meter propping agent is by weight: bauxitic clay 80%, useless haydite powder 12% and manganese powder 8%.
The weight percentage of main chemical compositions is in the described bauxitic clay: Al
2Content 65% ~ 78%, Si content 4%-12%, Fe content 1% ~ 7%, Ti content 2% ~ 4%.The granularity of described bauxitic clay is 320 orders.
The weight percentage of main chemical compositions is in the described manganese powder: manganese content 55% ~ 65%, Si content 10% ~ 20%, the granularity of manganese powder are 320 orders.
Described useless haydite powder is 325 orders for adopting the ball-milling processing technology with waste product haydite ball milling to its granularity.
Preparation process:
(1) bauxitic clay, useless haydite powder and manganese powder are mixed obtain mixture in proportion;
(2) mixture is put in the tablets press granulated, obtain haydite base substrate (the moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) with haydite base substrate screening post-drying, then 1340 ℃ of lower calcining insulations 3 hours, agent was supported.
Embodiment 2
The raw material of percentage composition meter propping agent is by weight: bauxitic clay 85%, useless haydite powder 8% and lithium hydroxide 7%.
The weight percentage of main chemical compositions is in the described bauxitic clay: Al
2Content 65% ~ 78%, Si content 4%-12%, Fe content 1% ~ 7%, Ti content 2% ~ 4%.The granularity of described bauxitic clay is 320 orders.
The granularity of described lithium hydroxide is 320 orders.
Described useless haydite powder is 325 orders for adopting the ball-milling processing technology with waste product haydite ball milling to its granularity.
Preparation process:
(1) bauxitic clay, useless haydite powder and lithium hydroxide are mixed obtain mixture in proportion;
(2) mixture is put in the tablets press granulated, obtain haydite base substrate (the moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) with haydite base substrate screening post-drying, then 1300 ℃ of lower calcining insulations 3 hours, agent was supported.
Embodiment 3
The raw material of percentage composition meter propping agent is by weight: bauxitic clay 80%, useless haydite powder 12% and lithium hydroxide 8%.
The weight percentage of main chemical compositions is in the described bauxitic clay: Al
2Content 65% ~ 78%, Si content 4%-12%, Fe content 1% ~ 7%, Ti content 2% ~ 4%.The granularity of described bauxitic clay is 320 orders.
The granularity of described lithium hydroxide is 320 orders.
Described useless haydite powder is 325 orders for adopting the ball-milling processing technology with waste product haydite ball milling to its granularity.
Preparation process:
(1) bauxitic clay, useless haydite powder and lithium hydroxide are mixed obtain mixture in proportion;
(2) mixture is put in the tablets press granulated, obtain haydite base substrate (the moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) with haydite base substrate screening post-drying, then 1300 ℃ of lower calcining insulations 3 hours, agent was supported.
Embodiment 4
The raw material of percentage composition meter propping agent is by weight: bauxitic clay 87%, useless haydite powder 6%, manganese powder 3% and lithium hydroxide 4%.
The weight percentage of main chemical compositions is in the described bauxitic clay: Al
2Content 65% ~ 78%, Si content 4%-12%, Fe content 1% ~ 7%, Ti content 2% ~ 4%.The granularity of described bauxitic clay is 320 orders.
The weight percentage of main chemical compositions is in the described manganese powder: manganese content 55% ~ 65%, Si content 10% ~ 20%, the granularity of manganese powder are 320 orders.
The granularity of described lithium hydroxide is 320 orders.
Described useless haydite powder is 325 orders for adopting the ball-milling processing technology with waste product haydite ball milling to its granularity.
Preparation process:
(1) in proportion bauxitic clay, give up haydite powder, manganese powder and lithium hydroxide are mixed and obtain mixture;
(2) mixture is put in the tablets press granulated, obtain haydite base substrate (the moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) with haydite base substrate screening post-drying, then 1320 ℃ of lower calcining insulations 3 hours, agent was supported.
Comparative example 1
The raw material of percentage composition meter propping agent is by weight: bauxitic clay 92%, manganese powder 8%.
The weight percentage of main chemical compositions is in the described bauxitic clay: Al
2Content 65% ~ 78%, Si content 4%-12%, Fe content 1% ~ 7%, Ti content 2% ~ 4%.The granularity of described bauxitic clay is 320 orders.
The weight percentage of main chemical compositions is in the described manganese powder: manganese content 55% ~ 65%, Si content 10% ~ 20%, the granularity of manganese powder are 320 orders.
Preparation process:
(1) bauxitic clay and manganese powder are mixed obtain mixture in proportion;
(2) mixture is put in the tablets press granulated, obtain haydite base substrate (the moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) with haydite base substrate screening post-drying, then 1340 ℃ of lower calcining insulations 3 hours, agent was supported.
The middle propping agent quality product detected result of table 1 embodiment 1-4 and comparative example 1
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 |
| Volume density g/cm 3 | 1.74 | 1.78 | 1.78 | 1.77 | 1.72 |
| The 69MPa percentage of damage | 5.96 | 4.42 | 4.40 | 4.50 | 6.74 |
| Circularity | >0.9 | >0.9 | >0.9 | >0.9 | >0.9 |
| Sphericity | >0.9 | >0.9 | >0.9 | >0.9 | >0.9 |
| Turbidity NTV | 49.6 | 47.9 | 48.0 | 50.9 | 60.1 |
| Acid solubility % | 6.45 | 6.40 | 6.39 | 6.41 | 6.47 |
| Volume density g/cm 3 | 3.17 | 3.21 | 3.21 | 3.20 | 3.08 |
Adopting the fusing assistant of embodiment 1 is manganese powder, adds useless haydite powder Partial Replacement in the raw material, and it is slightly good to detect index than comparative example 1 prepared quality product, but cost significantly is lower than comparative example 1.The fusing assistant of embodiment 2-4 adopts the mixture of lithium hydroxide or lithium hydroxide and manganese powder, and the percentage of damage of products obtained therefrom is starkly lower than embodiment 1 and comparative example.
Claims (7)
1. a middle density proppant that utilizes useless haydite to produce is characterized in that by weight percentage composition meter, and this propping agent comprises following raw material: bauxitic clay 80% ~ 90%, useless haydite powder 5% ~ 15% and fusing assistant 5% ~ 10%.
2. the middle density proppant produced of the useless haydite of utilization according to claim 1 is characterized in that described fusing assistant comprises at least a in manganese powder and the lithium hydroxide.
3. the middle density proppant of the useless haydite production of utilization according to claim 1 is characterized in that the weight percentage of main chemical compositions in the described bauxitic clay is: Al
2Content 65% ~ 78%, Si content 4%-12%, Fe content 1% ~ 7%, Ti content 2% ~ 4%.
4. the middle density proppant of the useless haydite production of utilization according to claim 2 is characterized in that the weight percentage of main chemical compositions in the described manganese powder is: manganese content 55% ~ 65%, Si content 10% ~ 20%.
5. the middle density proppant produced of the useless haydite of utilization according to claim 4, the granularity that it is characterized in that described bauxitic clay is 300 ~ 600 orders; The granularity of useless haydite powder is 300 ~ 600 orders; The granularity of described fusing assistant is 300 ~ 1000 orders.
6. the middle density proppant produced of the useless haydite of utilization according to claim 1 is characterized in that adopting the following steps preparation:
(1) will give up haydite in grinding in ball grinder, it is for subsequent use to reach the 300-600 order;
(2) bauxitic clay, useless haydite powder and fusing assistant are mixed obtain mixture in proportion;
(3) mixture is put in the tablets press granulated, obtain the haydite base substrate; Use spray method to add water, amount of water is 10% ~ 20% of mixture weight;
(4) with haydite base substrate screening post-drying, then 1280 ~ 1360 ℃ of lower calcining insulations 2 ~ 4 hours, obtain density ceramic proppant in the high strength.
7. the preparation method of the middle density proppant produced of the useless haydite of utilization claimed in claim 1 is characterized in that may further comprise the steps:
(1) will give up haydite in grinding in ball grinder, it is for subsequent use to reach the 300-600 order;
(2) bauxitic clay, useless haydite powder and fusing assistant are mixed obtain mixture in proportion;
(3) mixture is put in the tablets press granulated, obtain the haydite base substrate; Use spray method to add water, amount of water is 10% ~ 20% of mixture weight;
(4) with haydite base substrate screening post-drying, then 1280 ~ 1360 ℃ of lower calcining insulations 2 ~ 4 hours, obtain density ceramic proppant in the high strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210396159.0A CN102910897B (en) | 2012-10-17 | 2012-10-17 | Medium density propping agent used in waste ceramsite recycling production and preparation method thereof |
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|---|---|---|---|
| CN201210396159.0A CN102910897B (en) | 2012-10-17 | 2012-10-17 | Medium density propping agent used in waste ceramsite recycling production and preparation method thereof |
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| CN102910897B CN102910897B (en) | 2014-05-07 |
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Cited By (3)
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| WO2014172953A1 (en) * | 2013-04-25 | 2014-10-30 | 鹤壁天瑞石油支撑剂有限公司 | Petroleum fracturing proppant prepared from waste ceramic, and preparation method thereof |
| CN106396696A (en) * | 2016-08-26 | 2017-02-15 | 山东金璞新材料有限公司 | Preparation method of mullite spherical aggregate reinforced refractory material |
| CN112387370A (en) * | 2020-10-26 | 2021-02-23 | 湖北昌耀新材料股份有限公司 | Grinding process capable of improving strength of phosphogypsum ceramsite lightweight aggregate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014172953A1 (en) * | 2013-04-25 | 2014-10-30 | 鹤壁天瑞石油支撑剂有限公司 | Petroleum fracturing proppant prepared from waste ceramic, and preparation method thereof |
| CN106396696A (en) * | 2016-08-26 | 2017-02-15 | 山东金璞新材料有限公司 | Preparation method of mullite spherical aggregate reinforced refractory material |
| CN106396696B (en) * | 2016-08-26 | 2019-03-15 | 山东金璞新材料有限公司 | The preparation method of mullite spherical shape aggregate enhancing refractory material |
| CN112387370A (en) * | 2020-10-26 | 2021-02-23 | 湖北昌耀新材料股份有限公司 | Grinding process capable of improving strength of phosphogypsum ceramsite lightweight aggregate |
| CN112387370B (en) * | 2020-10-26 | 2022-02-18 | 湖北昌耀新材料股份有限公司 | Grinding process capable of improving strength of phosphogypsum ceramsite lightweight aggregate |
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