CN103664121A - Hole sealing injecting paste material, as well as preparation method and application thereof - Google Patents
Hole sealing injecting paste material, as well as preparation method and application thereof Download PDFInfo
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- CN103664121A CN103664121A CN201310606736.9A CN201310606736A CN103664121A CN 103664121 A CN103664121 A CN 103664121A CN 201310606736 A CN201310606736 A CN 201310606736A CN 103664121 A CN103664121 A CN 103664121A
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Abstract
The invention discloses a hole sealing injecting paste material, as well as a preparation method and application thereof. The material comprises the following materials in parts by weight: 60 to 65 parts of cement, 45 to 50 parts of alpha-CaSO4<.>0.5H2O4, 20 to 25 parts of quicklime, 3 to 5 parts of aluminum potassium sulfate dodecahydrate, 3 to 5 parts of sodium bicarbonate, 0.3 to 0.5 part of citric acid, 0.2 to 0.4 part of sodium dodecyl sulfate, and 0.1 to 0.15 part of aluminum powder. The hole sealing injecting paste material is suitable for pressurized grouting hole sealing process for a gas extraction drill hole, can keep good stability under a 1.2 to 1 high water-cement ratio condition, has the advantages of rapid hardening, high early strength, groutability and solidified body strength, and the like, and can conduct ideal sealing on a crack at the periphery of a drill hole due to a double-stage distension function, so as to completely cut off air inleakage paths. All the raw materials are commercial conventional materials, and are nontoxic, harmless, and low in price; field application tests show that compared with like products, the hole sealing injecting paste material has a better application effect.
Description
Technical field
The present invention relates to sealing of hole injecting paste material, especially relate to a kind of hole-sealing grouting material and preparation method thereof and application.
Background technology
This coal bed gas extraction is the important means of administering Gas Disaster, wherein extraction borehole airtight quality remarkably influenced extraction efficiency.Sealing material is the key element of hole-sealing technology, and it has decisive role to borehole sealing quality, and therefore improving sealing material performance is the important channel of improving hole-sealing technology.
Injection hole sealing technique with pressure is the method for sealing that development in recent years is got up, typical case as organic foam material-cementing, bag type paste sealing of hole, inflation (water filling) capsule-cementing and drape process urethane sealing of hole.The feature of such technique is by the effective shutoff to sealing of hole section two ends, form one section of airtight annular slip casting space, then sealing of hole medium is injected in pressurization wherein, because two ends are limited, sealing of hole slurries can only radially infiltrate boring crack around, thereby form the bleed good shutoff of passage of air, isolated extraneous air enters extraction borehole, effectively improves gas extraction concentration.
But current grouting process with pressure is used Portland cement slurries more, after completing, slip casting inevitably can pass through borehole circumference crack spill losses by some slurries, and when solidifying, can produce bleed shrinks, for high spud angle, boring can not produce fatal impact, but for small pitch or nearly horizontal drilling, will on slip casting section top, form crescent crack, form leakage path, cause sealing of hole failure.If band pressure grouting is used organic materials as urethane etc., there is the large slip casting difficulty of mixed serum viscosity, the shortcomings such as fast construction requirement of reaction times is high, and impact is pressed on the little resisting mining ground that cannot support of ultimate compression strength, and material price is high and toxic.
Summary of the invention
The object of this invention is to provide a kind of hole-sealing grouting material and preparation method thereof and application.
Hole-sealing grouting material provided by the invention, comprises following component: aluminosulfate cement, α-CaSO
40.5H
2o(or high strength gypsum), unslaked lime, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate and aluminium powder.
Above-mentioned hole-sealing grouting material also can be only comprised of as above component.
In described hole-sealing grouting material, the weight part of each component is as follows:
Concrete, in described hole-sealing grouting material, the weight part of each component is as follows:
Aluminosulfate cement 60-63 weight part, α-CaSO
40.5H
2o(or high strength gypsum) 45-48 weight part, unslaked lime 20-22 weight part, 12 hydrazine aluminum sulfate potassium 3-4 weight parts, sodium bicarbonate 3-4 weight part, citric acid 0.3-0.4 weight part, sodium lauryl sulphate 0.2-0.3 weight part, aluminium powder 0.1-0.12 weight part;
Aluminosulfate cement 63-65 weight part, α-CaSO
40.5H
2o(or high strength gypsum) 48-50 weight part, unslaked lime 22-25 weight part, 12 hydrazine aluminum sulfate potassium 4-5 weight parts, sodium bicarbonate 4-5 weight part, citric acid 0.4-0.5 weight part, sodium lauryl sulphate 0.3-0.4 weight part, aluminium powder 0.12-0.15 weight part;
More specifically, in described hole-sealing grouting material, the weight part of each component is as follows:
Aluminosulfate cement 63 weight parts, α-CaSO
40.5H
2o(or high strength gypsum) 48 weight parts, unslaked lime 22 weight parts, 12 hydrazine aluminum sulfate potassium 4 weight parts, sodium bicarbonate 4 weight parts, citric acid 0.4 weight part, sodium lauryl sulphate 0.3 weight part, aluminium powder 0.12 weight part; Or,
Aluminosulfate cement 65 weight parts, α-CaSO
40.5H
2o(or high strength gypsum) 50 weight parts, unslaked lime 25 weight parts, 12 hydrazine aluminum sulfate potassium 5 weight parts, sodium bicarbonate 5 weight parts, citric acid 0.5 weight part, sodium lauryl sulphate 0.4 weight part, aluminium powder 0.15 weight part.
Described aluminosulfate cement, α-CaSO
40.5H
2o(or high strength gypsum), the specific surface area of unslaked lime, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate is 350m
2/ kg to 400m
2/ kg;
The median size of described aluminium powder is 50～60 μ m.
The method of the described hole-sealing grouting material of preparation provided by the invention, comprises the steps: α-CaSO
40.5H
2o(or high strength gypsum), after 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate and aluminium powder mix according to proportioning, then add aluminosulfate cement and unslaked lime to mix according to proportioning, obtain described hole-sealing grouting material.
In addition, the application of the hole-sealing grouting material that the invention described above provides in sealing of hole, also belongs to protection scope of the present invention.Wherein, described sealing of hole step comprises: by described hole-sealing grouting material and water mixing and stirring; The weight ratio of described hole-sealing grouting material and water is 1:0.8-1.2, is specially 1:1.2.
The present invention is directed to current mash gas pumping drilling inorganic sealing hole injecting paste material and have bleed, solidify and leak after slow, slip casting and the shortcoming such as solidification shrinkage, a kind of NEW TYPE OF COMPOSITE injecting paste material that is applicable to injection hole sealing technique with pressure is provided.This injecting paste material can keep satisfactory stability under the high water-cement ratio of 1.2:1, there is the advantages such as rapid hardening, morning is strong, the property noted is good, congealed solid intensity is large, during use, can after initial set, in for some time, by effective balloon, realize to the compensation of hole-sealing grouting section slurries infiltration loss and to the boring shutoff in crack around, and can in final set for the previous period, again by ettringite molecular level crystallographic expansion power, to fine crack, seal compacting, thoroughly the blocking-up air approach that bleeds, significantly promotes gas extraction concentration.The present invention is raw materials used is commercially available conventional material, nontoxic and low price, and field application test proves, this patent product obviously has better effect compared with similar products.
Accompanying drawing explanation
Fig. 1 is coal bed drilling gas extraction concentration variation diagram.
Embodiment
Below in conjunction with specific embodiment, the present invention is further elaborated, but the present invention is not limited to following examples.Described method is ordinary method if no special instructions.Described starting material all can obtain from open commercial sources if no special instructions.The specific surface area of following embodiment aluminosulfate cement used, high strength gypsum, unslaked lime, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate is 350～400m
2/ kg; The median size of aluminium powder used is 50～60 μ m.
Aluminosulfate cement used can be purchased from Tangshan polar bear building materials company limited, and product is specially 42.5 grades of quick hardening sulphoaluminate cements that the said firm produces; High strength gypsum used can be purchased from E Qi Fengshan, Inner Mongol terra alba factory, and main component is α-CaSO
40.5H
2o.
Embodiment 1
The weight part of each raw material is as follows:
First by high strength gypsum, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate, aluminium powder according to required weight part add in mixer and tentatively mix, finally part adds aluminosulfate cement and unslaked lime according to required weight, mix and obtain provided by the invention pair of stage expansion compound hole sealing injecting paste material, deposit at the dry place of seal bag.
When down-hole sealing of hole is constructed, mixing (the water ash weight ratio 1.2:1) pulping that stirs can use with water.
The weight part of each raw material is as follows:
Aluminosulfate cement 63 weight parts, α-CaSO
40.5H
2o(or high strength gypsum) 48 weight parts, unslaked lime 22 weight parts, 12 hydrazine aluminum sulfate potassium 4 weight parts, sodium bicarbonate 4 weight parts, citric acid 0.4 weight part, sodium lauryl sulphate 0.3 weight part, aluminium powder 0.12 weight part;
First by high strength gypsum, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate, aluminium powder according to required weight part add in mixer and tentatively mix, finally part adds aluminosulfate cement and unslaked lime according to required weight, mix and obtain provided by the invention pair of stage expansion compound hole sealing injecting paste material, deposit at the dry place of seal bag.
When down-hole sealing of hole is constructed, mixing (the water ash weight ratio 1.2:1) pulping that stirs can use with water.
Embodiment 3
The weight part of each raw material is as follows:
Aluminosulfate cement 65 weight parts, α-CaSO
40.5H
2o(or high strength gypsum) 50 weight parts, unslaked lime 25 weight parts, 12 hydrazine aluminum sulfate potassium 5 weight parts, sodium bicarbonate 5 weight parts, citric acid 0.5 weight part, sodium lauryl sulphate 0.4 weight part, aluminium powder 0.15 weight part;
First by high strength gypsum, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate, aluminium powder according to required weight part add in mixer and tentatively mix, finally part adds aluminosulfate cement and unslaked lime according to required weight, mix and obtain provided by the invention pair of stage expansion compound hole sealing injecting paste material, deposit at the dry place of seal bag.
When down-hole sealing of hole is constructed, mixing (the water ash weight ratio 1.2:1) pulping that stirs can use with water.
The sealing of hole effect test of embodiment 4, two stage expansion compound hole sealing injecting paste materials
After adding 1.2 times of weight water to mix thoroughly the two stage expansion compound hole sealing injecting paste materials of embodiment 1 gained, use standard JBT--9226-2008 to carry out the mensuration of slurries suspension, slurries suspension is good, substantially without bleed phenomenon.
Use standard GBT8077-2000 carries out the mensuration of slurry fluidity, proves free of losses in slurry fluidity excellence and 40min, and while therefore constructing, the property noted is good.
Use grout expansion bleeding rate determinator to carry out the mensuration of slurries rate of expansion, 1h starts slow expansion, and 1h40min expansion process finishes, and rate of expansion reaches more than 15%, and the later stage is without shrinking dry and cracked phenomenon.Wherein, after material solidification, uniaxial compressive strength changes as shown in table 1.
Table 1, strength of materials Changing Pattern
As shown in Table 1, this material can develop higher intensity in the short period of time, meets the requirement of injecting paste material rapid hardening early strengthening and high strengthening completely.
The performance of this material has been carried out to industry spot test, select state to drown oneself in a river colliery, the Wang Hang of the Nan Xinneng development corporation, Ltd. village as test site, ore deposit, the Wang Hang village now adopts the middle filling of two ends urethane ordinary Portland cement slurry sealing of hole, the gas density rate of decay is fast, effectively the extraction cycle is short, remarkably influenced gas pumping efficiency, thereby the trial that can carry out this material is to improve this situation.
Choose representative test holes S1～S4 and contrast hole D1～D4 and carry out simultaneous test, drilling construction parameter is consistent;
This embodiment resulting materials sealing of hole of filling in the middle of the urethane of employing two ends, S1～S4 hole wherein, being specially sealing of hole section two ends is respectively 1m urethane sealing of hole section, forms annular closed slip casting space, to pressurization in this space, injects these embodiment resulting materials slurries;
D1～D4 hole adopts the former hole-sealing technology in ore deposit, the Wang Hang village (being also filling ortho-water mud in the middle of the urethane of two ends) sealing of hole, being specially sealing of hole section two ends is respectively 1m urethane sealing of hole section, form annular closed slip casting space, to pressurization in this space, inject ordinary Portland cement slurries.
Boring injection hole sealing technical parameter is in Table 2.
Table 2 injection hole sealing technical parameter design table
Through the field observation of about 2 months, test drilling and contrast drilling gas change in concentration situation were as shown in Figure 1.
As shown in Figure 1, the gas extraction concentration that adopts embodiment 1 resulting materials to seal S1～S4 boring is holed apparently higher than using former hole-sealing technology to seal D1～D4, along with extraction time lengthening extraction gas density difference is more remarkable.The average gas extraction concentration comparison of test holes S1～S4 improves respectively 24.9%, 25.8%, 28.3%, 21.7% than hole D1～D4, on average improves 25.2%.When 5d, 35d, 67d, the average extraction concentration ratio contrast hole of 4 test holess improves respectively 13.3%, 33.2%, 47.3%, illustrate that the gas extraction concentration rate of decay obviously reduces, thereby significantly extends effective extraction cycle that makes to hole.
The sealing of hole effect of the two stage expansion compound hole sealing injecting paste materials of embodiment 2 and 3 gained and upper without substantive difference, repeats no more.
Claims (10)
1. a hole-sealing grouting material, comprises following component: aluminosulfate cement, α-CaSO
40.5H
2o, unslaked lime, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate and aluminium powder.
2. material according to claim 1, is characterized in that: described hole-sealing grouting material is comprised of following each component: aluminosulfate cement, α-CaSO
40.5H
2o, unslaked lime, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate and aluminium powder.
3. material according to claim 1 and 2, is characterized in that: in described hole-sealing grouting material, the weight part of each component is as follows:
Aluminosulfate cement 60～65 weight parts, α-CaSO
40.5H
2o45～50 weight part, unslaked lime 20～25 weight parts, 12 hydrazine aluminum sulfate potassium 3～5 weight parts, sodium bicarbonate 3～5 weight parts, citric acid 0.3～0.5 weight part, sodium lauryl sulphate 0.2～0.4 weight part, aluminium powder 0.1～0.15 weight part;
In described hole-sealing grouting material, the weight part of each component is specific as follows:
Aluminosulfate cement 60-63 weight part, α-CaSO
40.5H
2o45-48 weight part, unslaked lime 20-22 weight part, 12 hydrazine aluminum sulfate potassium 3-4 weight parts, sodium bicarbonate 3-4 weight part, citric acid 0.3-0.4 weight part, sodium lauryl sulphate 0.2-0.3 weight part, aluminium powder 0.1-0.12 weight part;
Aluminosulfate cement 63-65 weight part, α-CaSO
40.5H
2o48-50 weight part, unslaked lime 22-25 weight part, 12 hydrazine aluminum sulfate potassium 4-5 weight parts, sodium bicarbonate 4-5 weight part, citric acid 0.4-0.5 weight part, sodium lauryl sulphate 0.3-0.4 weight part, aluminium powder 0.12-0.15 weight part.
4. material according to claim 3, is characterized in that: in described hole-sealing grouting material, the weight part of each component is as follows:
Aluminosulfate cement 60 weight parts, α-CaSO
40.5H
2o45 weight part, unslaked lime 20 weight parts, 12 hydrazine aluminum sulfate potassium 3 weight parts, sodium bicarbonate 3 weight parts, citric acid 0.3 weight part, sodium lauryl sulphate 0.2 weight part, aluminium powder 0.1 weight part.
5. material according to claim 3, is characterized in that: in described hole-sealing grouting material, the weight part of each component is as follows:
Aluminosulfate cement 63 weight parts, α-CaSO
40.5H
2o48 weight part, unslaked lime 22 weight parts, 12 hydrazine aluminum sulfate potassium 4 weight parts, sodium bicarbonate 4 weight parts, citric acid 0.4 weight part, sodium lauryl sulphate 0.3 weight part, aluminium powder 0.12 weight part.
6. material according to claim 3, is characterized in that: in described hole-sealing grouting material, the weight part of each component is as follows:
Aluminosulfate cement 65 weight parts, α-CaSO
40.5H
2o50 weight part, unslaked lime 25 weight parts, 12 hydrazine aluminum sulfate potassium 5 weight parts, sodium bicarbonate 5 weight parts, citric acid 0.5 weight part, sodium lauryl sulphate 0.4 weight part, aluminium powder 0.15 weight part.
7. according to the arbitrary described material of claim 1-6, it is characterized in that: described aluminosulfate cement, α-CaSO
40.5H
2the specific surface area of O, unslaked lime, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate is 350～400m
2/ kg;
The median size of described aluminium powder is 50～60 μ m.
8. a method of preparing the arbitrary described hole-sealing grouting material of claim 1-7, comprises the steps: arbitrary described α-CaSO by claim 1-7
40.5H
2after O, 12 hydrazine aluminum sulfate potassium, sodium bicarbonate, citric acid, sodium lauryl sulphate and aluminium powder mix according to proportioning, then add aluminosulfate cement and unslaked lime to mix according to proportioning, obtain described hole-sealing grouting material.
9. the application of the arbitrary described hole-sealing grouting material of claim 1-7 in sealing of hole.
10. application according to claim 9, is characterized in that: described sealing of hole step comprises: the arbitrary described hole-sealing grouting material of claim 1-7 and water are mixed;
The weight ratio of described hole-sealing grouting material and water is 1:0.8-1.2, is specially 1:1.2.
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Cited By (6)
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| CN104261768A (en) * | 2014-08-29 | 2015-01-07 | 明光市第二建筑安装有限责任公司 | Fireproof wall body heat-preservation material and preparation method thereof |
| CN104387007A (en) * | 2014-11-03 | 2015-03-04 | 河南工程学院 | Low-cost quick-setting expansible hole-sealing material applied to coal mine |
| CN105238375A (en) * | 2015-10-23 | 2016-01-13 | 中国石油化工股份有限公司 | High strength auto-expansion plugging agent |
| CN105801027A (en) * | 2016-03-14 | 2016-07-27 | 冀中能源峰峰集团有限公司 | Gas extraction drilled hole sealing material |
| CN106997157A (en) * | 2017-06-06 | 2017-08-01 | 长葛市汇达感光材料有限公司 | A kind of method for sealing of photosensitive material plate |
| CN115745507A (en) * | 2022-11-11 | 2023-03-07 | 中煤科工集团沈阳研究院有限公司 | Slurry for rapidly plugging gas leakage of extraction pipeline and preparation and use methods thereof |
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| WO2021022045A1 (en) | 2019-07-31 | 2021-02-04 | Ecolab Usa Inc. | Personal protective equipment free delimer compositions |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261768A (en) * | 2014-08-29 | 2015-01-07 | 明光市第二建筑安装有限责任公司 | Fireproof wall body heat-preservation material and preparation method thereof |
| CN104387007A (en) * | 2014-11-03 | 2015-03-04 | 河南工程学院 | Low-cost quick-setting expansible hole-sealing material applied to coal mine |
| CN104387007B (en) * | 2014-11-03 | 2016-06-08 | 河南工程学院 | Colliery low cost rapid hardening dilatancy sealing material |
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| CN105801027A (en) * | 2016-03-14 | 2016-07-27 | 冀中能源峰峰集团有限公司 | Gas extraction drilled hole sealing material |
| CN105801027B (en) * | 2016-03-14 | 2017-10-10 | 冀中能源峰峰集团有限公司 | Mash gas pumping drilling sealing material |
| CN106997157A (en) * | 2017-06-06 | 2017-08-01 | 长葛市汇达感光材料有限公司 | A kind of method for sealing of photosensitive material plate |
| CN115745507A (en) * | 2022-11-11 | 2023-03-07 | 中煤科工集团沈阳研究院有限公司 | Slurry for rapidly plugging gas leakage of extraction pipeline and preparation and use methods thereof |
| CN115745507B (en) * | 2022-11-11 | 2024-01-26 | 中煤科工集团沈阳研究院有限公司 | Slurry for rapidly plugging leakage of extraction pipeline and preparation and use methods thereof |
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