CN102910897B - 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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- CN102910897B CN102910897B CN201210396159.0A CN201210396159A CN102910897B CN 102910897 B CN102910897 B CN 102910897B CN 201210396159 A CN201210396159 A CN 201210396159A CN 102910897 B CN102910897 B CN 102910897B
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- haydite
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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, Metal Ball etc., and volume increase oil and gas is had to good result.
During oil and gas deep mining, high locking pressure deposits of low permeability, after fracture treatment, splits Oil gas-containing rock layer, the passage that oil gas forms from crack, collects.With petroleum fracturing propping agent, in company with high-pressure solution, enter Filling in rock crack, play support 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 extend 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 crack not stress discharge and closed, thereby the high flow conductivity that keeps oil gas, not only can increase oil and gas production, and more can extend the Oil/gas Well length of service.
Conventionally people's custom is divided into three kinds by propping agent density: low density, middle density and high-density are generally respectively 1.65 g/cm with volume density and volume density
3below with 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
3for middle density proppant; 1.80g/cm
3above with 3.35 g/cm
3it is more than high density proppants.
The enterprise of domestic product propping agent, in process of production, due to the difference of technique of management and administration, can produce the waste product haydite of 5% ~ 20% left and right, 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 to carry out cycling and reutilization to the waste product haydite producing in production process.
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.
Object of the present invention can be achieved through the following technical solutions:
A middle density proppant that utilizes useless haydite to produce, it is percentage composition meter by weight, 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 one in manganese powder and lithium hydroxide.
In described bauxitic clay, the weight percentage of main chemical compositions is: 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 manganese ore stone flour, and in described manganese powder, the weight percentage of main chemical compositions is: 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 following steps preparation:
(1) will give up haydite in grinding in ball grinder, reach 300-600 order standby;
(2) in proportion bauxitic clay, useless haydite powder and fusing assistant are mixed and obtain mixture;
(3) mixture is put in tablets press and granulated, obtain haydite base substrate; Use spray method to add water, amount of water is 10% ~ 20% of mixture weight;
(4) by haydite base substrate screening post-drying, then at 1280 ~ 1360 ℃, calcining is incubated 2 ~ 4 hours, obtains density ceramic proppant in high strength.
The preparation method of the middle density proppant that the useless haydite of above-mentioned utilization is produced, it is to comprise the following steps:
(1) will give up haydite in grinding in ball grinder, reach 300-600 order standby;
(2) in proportion bauxitic clay, useless haydite powder and fusing assistant are mixed and obtain mixture;
(3) mixture is put in tablets press and granulated, obtain haydite base substrate; Use spray method to add water, amount of water is 10% ~ 20% of mixture weight;
(4) by haydite base substrate screening post-drying, then at 1280 ~ 1360 ℃, calcining is incubated 2 ~ 4 hours, obtains density ceramic proppant in high strength.
The present invention selects to adopt ball-milling processing technology, and it is more carefully better that alternative thunder illiteracy crushing technology is milled to waste product haydite, but meticulous meeting increases cost, so the granularity of the haydite powder that gives up is preferably 300-600 order; Then stir with bauxitic clay raw material and fusing assistant, premix, recycle, has had and has significantly improved the benefit of enterprise, to improving environment, has had raising, accomplish to make the best use of everything, and the propping agent of producing meets national standard completely.
Beneficial effect of the present invention:
Product of the present invention and method are that the haydite waste product producing in production process carries out cycling and reutilization, economize on resources, and reduce environmental pollution, reduce product cost, and the product that adopts the method to produce meets state quality standard completely.
The present invention simultaneously, except adopting manganese powder, has also adopted the mixture of lithium hydroxide or lithium hydroxide and manganese powder as fusing assistant, and the ceramsite propping agent percentage of damage that adopts lithium hydroxide to prepare as fusing assistant is lower.And because lithium hydroxide chemical composition is single, can be due to the unstable fluctuation that causes ceramsite propping agent quality of fusing assistant chemical composition.
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%.
In described bauxitic clay, the weight percentage of main chemical compositions is: 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.
In described manganese powder, the weight percentage of main chemical compositions is: manganese content 55% ~ 65%, Si content 10% ~ 20%, the granularity of manganese powder is 320 orders.
Described useless haydite powder is 325 orders for adopting ball-milling processing technology that waste product haydite is milled to its granularity.
Preparation process:
(1) in proportion bauxitic clay, useless haydite powder and manganese powder are mixed and obtain mixture;
(2) mixture is put in tablets press and granulated, obtain haydite base substrate (moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) by haydite base substrate screening post-drying, then at 1340 ℃, calcining is incubated 3 hours, and agent is 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%.
In described bauxitic clay, the weight percentage of main chemical compositions is: 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 ball-milling processing technology that waste product haydite is milled to its granularity.
Preparation process:
(1) in proportion bauxitic clay, useless haydite powder and lithium hydroxide are mixed and obtain mixture;
(2) mixture is put in tablets press and granulated, obtain haydite base substrate (moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) by haydite base substrate screening post-drying, then at 1300 ℃, calcining is incubated 3 hours, and agent is 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%.
In described bauxitic clay, the weight percentage of main chemical compositions is: 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 ball-milling processing technology that waste product haydite is milled to its granularity.
Preparation process:
(1) in proportion bauxitic clay, useless haydite powder and lithium hydroxide are mixed and obtain mixture;
(2) mixture is put in tablets press and granulated, obtain haydite base substrate (moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) by haydite base substrate screening post-drying, then at 1300 ℃, calcining is incubated 3 hours, and agent is 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%.
In described bauxitic clay, the weight percentage of main chemical compositions is: 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.
In described manganese powder, the weight percentage of main chemical compositions is: manganese content 55% ~ 65%, Si content 10% ~ 20%, the granularity of manganese powder is 320 orders.
The granularity of described lithium hydroxide is 320 orders.
Described useless haydite powder is 325 orders for adopting ball-milling processing technology that waste product haydite is milled to its granularity.
Preparation process:
(1) in proportion bauxitic clay, useless haydite powder, manganese powder and lithium hydroxide are mixed and obtain mixture;
(2) mixture is put in tablets press and granulated, obtain haydite base substrate (moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) by haydite base substrate screening post-drying, then at 1320 ℃, calcining is incubated 3 hours, and agent is supported.
Comparative example 1
The raw material of percentage composition meter propping agent is by weight: bauxitic clay 92%, manganese powder 8%.
In described bauxitic clay, the weight percentage of main chemical compositions is: 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.
In described manganese powder, the weight percentage of main chemical compositions is: manganese content 55% ~ 65%, Si content 10% ~ 20%, the granularity of manganese powder is 320 orders.
Preparation process:
(1) in proportion bauxitic clay and manganese powder are mixed and obtain mixture;
(2) mixture is put in tablets press and granulated, obtain haydite base substrate (moulding particle diameter is 0.5-1.0mm); Use spray method to add water, amount of water is 15% of mixture weight;
(3) by haydite base substrate screening post-drying, then at 1340 ℃, calcining is incubated 3 hours, and agent is 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 |
| 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 and partly replace in raw material, and it is slightly good that the quality product more prepared than comparative example 1 detects index, but cost is significantly 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 (6)
1. a middle density proppant that utilizes useless haydite to produce, is characterized in that percentage composition meter by weight, and this propping agent is comprised of following raw material: bauxitic clay 80% ~ 90%, useless haydite powder 5% ~ 15% and fusing assistant 5% ~ 10%.
2. the middle density proppant that the useless haydite of utilization according to claim 1 is produced, is characterized in that described fusing assistant comprises at least one in manganese powder and lithium hydroxide.
3. the middle density proppant that the useless haydite of utilization according to claim 1 is produced, is characterized in that the weight percentage of main chemical compositions in 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 that the useless haydite of utilization according to claim 2 is produced, is characterized in that the weight percentage of main chemical compositions in described manganese powder is: manganese content 55% ~ 65%, Si content 10% ~ 20%.
5. the middle density proppant that the useless haydite of utilization according to claim 4 is produced, 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 that the useless haydite of utilization according to claim 1 is produced, is characterized in that adopting following steps preparation:
(1) will give up haydite in grinding in ball grinder, reach 300-600 order standby;
(2) in proportion bauxitic clay, useless haydite powder and fusing assistant are mixed and obtain mixture;
(3) mixture is put in tablets press and granulated, obtain haydite base substrate; Use spray method to add water, amount of water is 10% ~ 20% of mixture weight;
(4) by haydite base substrate screening post-drying, then at 1280 ~ 1360 ℃, calcining is incubated 2 ~ 4 hours, obtains density ceramic proppant in high strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| 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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| CN102910897A CN102910897A (en) | 2013-02-06 |
| CN102910897B true CN102910897B (en) | 2014-05-07 |
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| CN201210396159.0A Expired - Fee Related 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103194207B (en) * | 2013-04-25 | 2016-04-20 | 鹤壁天瑞石油支撑剂有限公司 | A kind of waste ceramic petroleum fracturing propping agent and preparation method thereof |
| 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 |
| 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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