CN100586881C - Petroleum well drilling waste slurry harmless environmental protection curing agent and producing method thereof - Google Patents
Petroleum well drilling waste slurry harmless environmental protection curing agent and producing method thereof Download PDFInfo
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- CN100586881C CN100586881C CN200710013445A CN200710013445A CN100586881C CN 100586881 C CN100586881 C CN 100586881C CN 200710013445 A CN200710013445 A CN 200710013445A CN 200710013445 A CN200710013445 A CN 200710013445A CN 100586881 C CN100586881 C CN 100586881C
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Abstract
The invention discloses a curing agent with a harmless and environmental protection function of waste mud in petroleum drilling, which consists of main agent and vice agent. The main agent consists ofsolid sodium metasilicate, aluminium sulfate, alum, charcoal, portland cement clinker and sodium carbonate which is mixed by a weight proportion of 85 to 150: 35 to 60: 10 to 17: 10 to 25: 760 to 835:1 to 4; the vice agent consists of portland cement clinker, calcium oxide and coal ash which is mixed according to a weight proportion of 70 to 90: 10 to 20: 10 to 20; the weight proportion of the main agent and the vice agent is 1: 10 to 11. The curing agent with a harmless and environmental protection function of waste mud in petroleum drilling can solidify the waste mud rapidly and cover earthon the solidified waste mud for 30cm to 40cm; then plough returning can be realized after three months so as to protect the environment, and also save the cultivated land.
Description
Technical field
The present invention relates to technical field of sludge treatment, particularly relating to a kind of being used for carries out environment-friendly solidified treatment agent to petroleum well drilling waste slurry, is applicable to the solidification treatment of various drilling waste muds.
Background technology
After drilling operation is finished in the oil field, a large amount of drilling waste mud air storages are in suction pit, can constantly cause waste seepage and overflow, soil, atmosphere, surface water and underground water to surrounding environment cause severe contamination, especially heavy metal in the discarded slurry and compound thereof can bring serious potential hazard to the mankind.In a very long time, because rejected well drilling liquid exists characteristics such as dispersiveness (being dispersed in each drilling well point), disguised (unlike sump oil and sewage is easier intuitively discover), its prevention and cure of pollution and the comprehensive regulation do not cause enough attention of people.In recent years, people have had deep understanding to the drilling waste mud contaminate environment, drilling waste mud and sump oil, sewage are the same, be one of three big public hazards of field produces, it mainly showed three: one, and rejected well drilling liquid is difficult to degraded under state of nature, can cause the surrounding area soil compaction, the soil salinization, the vegetation considerable damage: the 2nd, the rejected well drilling liquid long-term accumulated is penetrated under the face of land water layer or with the excessive inflow rivers of rainwater brook, polluted source, harm people's health; The 3rd, the rejected well drilling liquid heap is known around the well site, accounts for and does a large amount of the arable land or the meadow, makes the soil that takies lose use value, becomes new source of pollution.In a word, owing to contain a large amount of hazardous and noxious substances in the rejected well drilling liquid, long-term abandonment at the scene will be because of wind and rain drop erosion, soil and groundwater resource are on every side polluted, and take the destruction soil for a long time, make the soil not recover as early as possible to cultivate, this situation reaches today of water resources growing tension less in per capita arable land particularly serious.For this reason, how dealing carefully with waste mud is the environmental protection problem that the petroleum drilling operating altitude is paid attention to.
At present to the site disposal method of drilling waste mud comprise be provided with storage pool, soil plough and bury, on-the-spot around the solidification treatment etc. of discharging, storage pool refuse; Treatment process comprises and the center storage pool is set, carries out land farming and mud is handled again outside the venue.And the most frequently used method is a solidification method at present, its ultimate principle is to add the solidifying agent with fixed performance in rejected well drilling liquid, make it change into similar concrete cured body, because of in conjunction with the objectionable constituent in it, as heavy metal ion, organism, oils etc., diafiltration be can significantly reduce, thereby influence and harm reduced environment to soil.This method is considered to the good method that a kind of reliable improvement waste liquid of drilling pollutes now, but because existing waste mud solidification treatment agent manufacturing cost height needs the drilling waste mud quantity of processing bigger, has limited the popularization of this technology.Number of patent application is that 200610044458.2 and 200410035507.7 application for a patent for invention discloses agent of a kind of drilling waste mud solidification treatment and solidification processing method thereof respectively, because it is still in the experimental phase, uses as yet in the actual production.
Summary of the invention
Purpose of the present invention is exactly at above-mentioned the deficiencies in the prior art; provide a kind of construction simple, drilling waste mud is cured the better treatment agent of treatment effect; this treatment agent can make waste mud lose flowability within a short period of time; and then form stable anti-water solid; thereby the effect of preserving the ecological environment, saving the soil is played in the diffusion and the migration of restriction objectionable impurities.
Another object of the present invention is the production method that a kind of petroleum well drilling waste slurry harmless environmental protection curing agent will be provided.
For achieving the above object, drilling waste mud harmless environmental protection curing agent of the present invention adopts following technical scheme:
It is mixed by host and secondary agent;
Said host is to be mixed by sodium silicate solid, Tai-Ace S 150, alum, charcoal, Portland clinker and yellow soda ash, and the weight proportion of above-mentioned each composition is a sodium silicate solid: Tai-Ace S 150: alum: charcoal: Portland clinker: yellow soda ash=85-150: 35-60: 10-17: 10-25: 760-835: 1-4;
Said secondary agent is to be mixed by Portland clinker, unslaked lime and coal ash, and the weight proportion of above-mentioned each composition is a Portland clinker: unslaked lime: coal ash=70-90: 10-20: 10-20;
The weight proportion of above-mentioned host and secondary agent is a host: secondary agent=1: 10-11.
The production method of above-mentioned petroleum well drilling waste slurry harmless environmental protection curing agent may further comprise the steps:
A. sodium silicate solid, Tai-Ace S 150, alum, four kinds of raw materials of charcoal are sent into respectively in the hot-air drier, oven dry to each raw material surface planar water content is not more than 1% under 105 ℃ of-110 ℃ of temperature condition;
B. according to sodium silicate solid: the weight proportion of Tai-Ace S 150: alum: charcoal: Portland clinker: yellow soda ash=85-150: 35-60: 10-17: 10-25: 760-835: 1-4 takes by weighing sodium silicate solid, Tai-Ace S 150, alum, charcoal, Portland clinker and yellow soda ash, drop into to be crushed in the crusher and expect that a grain diameter is not more than 10mm, enter in the stirring tank then and fully stir, change shredder over to after mixing of materials is even and carry out grinding, analyze screen over-size through 200 mesh sieve fineness and be qualified host product less than 7%;
C. according to Portland clinker: unslaked lime: coal ash=70-90: 10-20: the 10-20 weight proportion takes by weighing Portland clinker, unslaked lime and coal ash, be not more than 10mm through crusher in crushing to material grain diameter, enter in the stirring tank then and fully stir, at the construction field (site) mixing of materials evenly is qualified secondary agent product;
D. with above-mentioned host product and secondary agent product by 1: the weight proportion of 10-11 mixes at the construction field (site).
The using method of above-mentioned petroleum well drilling waste slurry harmless environmental protection curing agent is that the add-on of this solidifying agent is the 15%-30% of pending waste mud weight.
The environment-friendly solidified treatment agent of petroleum well drilling waste slurry of the present invention is used composite synergistic principle, give full play to the effect of emulsion splitter, solidifying agent, sorbent material, complexing agent, adjustment agent, make the rapid curing of waste mud and reach the purpose of improving environment, and dirty mud sump promptly can be used as the arable land after solidifying back earthing 30cm-40cm.This solidification treatment agent proves by three mouthfuls of well cured in place Processing Test of carrying out in oil recovery factory, stake west, this product has the fast advantage of solidification, height according to solid load in waste mud directly mixes this solidification treatment agent that adds 15-30%, waste mud just loses flowability in 20 minutes, ultimate compression strength is greater than 0.65MPa after 24 hours, can bear into body weight for humans, and has the strong performance of anti-water stability, leach water-content less than 20mg/L, chemical oxygen demand is less than 200mg/L, and colourity is less than 100 degree.(Bohai Sea) drilling well main office oil well experiment leaching water quality test all reaches the wastewater discharge standard of COD (mg/l) 11.5, petroleum-type (mg/l) 8.5, total chromium (mg/l) 0.5, pH value 7.5 through the Yellow River, these several mouthfuls of wells were through earth backing two months, overgrowed with glossy and green weeds on the mud sump surface, it is cultivated to realize after three months that earthing returns.
Description of drawings
Fig. 1 is the technological process of production figure of host product among the present invention.
Embodiment
Embodiment one
A kind of petroleum well drilling waste slurry harmless environmental protection curing agent, mix by host and secondary agent, said host is to be mixed by sodium silicate solid, Tai-Ace S 150, alum, charcoal, Portland clinker and yellow soda ash, and the weight proportion of above-mentioned each composition is a sodium silicate solid: Tai-Ace S 150: alum: charcoal: Portland clinker: yellow soda ash=85: 60: 10: 25: 760: 4; Said secondary agent is to be mixed by Portland clinker, unslaked lime and coal ash, and the weight proportion of above-mentioned each composition is a Portland clinker: unslaked lime: coal ash=70: 20: 10; The weight proportion of above-mentioned host and secondary agent is a host: secondary agent=1: 10.
The production method of above-mentioned petroleum well drilling waste slurry harmless environmental protection curing agent may further comprise the steps:
A. sodium silicate solid, Tai-Ace S 150, alum, four kinds of raw materials of charcoal are sent into respectively in the hot-air drier, oven dry to each raw material surface planar water content is not more than 1% under 105 ℃ of-110 ℃ of temperature condition;
B. take by weighing sodium silicate solid, Tai-Ace S 150, alum, charcoal, Portland clinker and yellow soda ash according to weight proportion, drop into to be crushed in the crusher and expect that a grain diameter is not more than 10mm, enter in the stirring tank then and fully stir, change shredder over to after mixing of materials is even and carry out grinding, analyze screen over-size through 200 mesh sieve fineness and be qualified host product less than 7%;
C. take by weighing Portland clinker, unslaked lime and coal ash according to weight proportion, be not more than 10mm, enter in the stirring tank then and fully stir, at the construction field (site) mixing of materials evenly is qualified secondary agent product through crusher in crushing to material grain diameter;
D. above-mentioned host product and the secondary agent product weight proportion by 1: 10 is mixed at the construction field (site).
The using method of above-mentioned petroleum well drilling waste slurry harmless environmental protection curing agent, the add-on that is this solidifying agent is 15% of a pending waste mud weight.
Embodiment two
Petroleum well drilling waste slurry harmless environmental protection curing agent, mix by host and secondary agent, said host is to be mixed by sodium silicate solid, Tai-Ace S 150, alum, charcoal, Portland clinker and yellow soda ash, and the weight proportion of above-mentioned each composition is a sodium silicate solid: Tai-Ace S 150: alum: charcoal: Portland clinker: yellow soda ash=150: 35: 17: 10: 835: 1; Said secondary agent is to be mixed by Portland clinker, unslaked lime and coal ash, and the weight proportion of above-mentioned each composition is a Portland clinker: unslaked lime: coal ash=90: 10: 20; The weight proportion of above-mentioned host and secondary agent is a host: secondary agent=1: 11.
Its production method is with embodiment one; The add-on of this solidifying agent is 30% of a pending waste mud weight during use.
Embodiment three
The production method of petroleum well drilling waste slurry harmless environmental protection curing agent of the present invention may further comprise the steps:
A. (modulus is 2.2-2.5, and density is 2.2-2.3g/cm to get sodium silicate solid
2), hydrazine aluminum sulfate (technical pure), hydration tschermigite, four kinds of raw materials of weedtree charcoal send into respectively in the hot-air drier, oven dry to each raw material surface planar water content is not more than 1% under 105 ℃ of-110 ℃ of temperature condition;
B. take by weighing sodium silicate solid 98kg, Tai-Ace S 150 55kg, alum 15kg, charcoal 10kg, Portland clinker 818kg and yellow soda ash 4kg, enter through blender loader and to be crushed to a material grain diameter in the crusher and to be not more than 10mm, enter in the stirring tank then and fully stir, change three-roll grinder over to after mixing of materials is even and carry out grinding, analyze screen over-size less than 7% i.e. production host product 1000kg through 200 mesh sieve fineness;
C. take by weighing Portland clinker 8000kg, unslaked lime 1000kg, coal ash 1000kg, be not more than 10mm through crusher in crushing to material grain diameter, enter in the stirring tank then and fully stir, at the construction field (site) mixing of materials is evenly promptly produced secondary agent product 10000kg;
D. above-mentioned host product and secondary agent product are mixed at the construction field (site).
Add this solidifying agent of pending waste mud weight 20% during construction, the two is mixed.
Claims (2)
1, a kind of petroleum well drilling waste slurry harmless environmental protection curing agent is mixed by host and secondary agent, it is characterized in that:
Said host is to be mixed by sodium silicate solid, Tai-Ace S 150, alum, charcoal, Portland clinker and yellow soda ash, and the weight proportion of above-mentioned each composition is a sodium silicate solid: Tai-Ace S 150: alum: charcoal: Portland clinker: yellow soda ash=85-150: 35-60: 10-17: 10-25: 760-835: 1-4;
Said secondary agent is to be mixed by Portland clinker, unslaked lime and coal ash, and the weight proportion of above-mentioned each composition is a Portland clinker: unslaked lime: coal ash=70-90: 10-20: 10-20;
The weight proportion of above-mentioned host and secondary agent is a host: secondary agent=1: 10-11.
2, the production method of petroleum well drilling waste slurry harmless environmental protection curing agent according to claim 1 is characterized in that may further comprise the steps:
A. sodium silicate solid, Tai-Ace S 150, alum, four kinds of raw materials of charcoal are sent into respectively in the hot-air drier, oven dry to each raw material surface planar water content is not more than 1% under 105 ℃ of-110 ℃ of temperature condition;
B. according to sodium silicate solid: the weight proportion of Tai-Ace S 150: alum: charcoal: Portland clinker: yellow soda ash=85-150: 35-60: 10-17: 10-25: 760-835: 1-4 takes by weighing sodium silicate solid, Tai-Ace S 150, alum, charcoal, Portland clinker and yellow soda ash, drop into to be crushed in the crusher and expect that a grain diameter is not more than 10mm, enter in the stirring tank then and fully stir, change shredder over to after mixing of materials is even and carry out grinding, analyze screen over-size through 200 mesh sieve fineness and be qualified host product less than 7%;
C. according to Portland clinker: unslaked lime: coal ash=70-90: 10-20: the 10-20 weight proportion takes by weighing Portland clinker, unslaked lime and coal ash, be not more than 10mm through crusher in crushing to material grain diameter, enter in the stirring tank then and fully stir, at the construction field (site) mixing of materials evenly is qualified secondary agent product;
D. with above-mentioned host product and secondary agent product by 1: the weight proportion of 10-11 mixes at the construction field (site).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710013445A CN100586881C (en) | 2007-02-02 | 2007-02-02 | Petroleum well drilling waste slurry harmless environmental protection curing agent and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710013445A CN100586881C (en) | 2007-02-02 | 2007-02-02 | Petroleum well drilling waste slurry harmless environmental protection curing agent and producing method thereof |
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| Publication Number | Publication Date |
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| CN101234838A CN101234838A (en) | 2008-08-06 |
| CN100586881C true CN100586881C (en) | 2010-02-03 |
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| CN200710013445A Expired - Fee Related CN100586881C (en) | 2007-02-02 | 2007-02-02 | Petroleum well drilling waste slurry harmless environmental protection curing agent and producing method thereof |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295401B (en) * | 2010-06-25 | 2013-05-15 | 中国石油化工集团公司 | Harmless treatment method of polysulfonate drilling fluid waste mud in deep well |
| CN101941828B (en) * | 2010-08-31 | 2014-02-12 | 中铁四局集团有限公司 | Slurry curing agent |
| CN102180641A (en) * | 2011-01-26 | 2011-09-14 | 中国石油大学(华东) | Method and process for high strength curing of drilling waste |
| CN102491720A (en) * | 2011-12-07 | 2012-06-13 | 济南大学 | Curing agent for cement-based rapid-hardening high-moisture discarded mud |
| BR112015025029B1 (en) * | 2013-04-10 | 2021-12-28 | Sika Technology Ag | MULTI-COMPONENT CEMENTARY COMPOSITION, USE OF IT, USE OF A SODIUM SILICATE SOLUTION AND METHOD FOR MANUFACTURING A HARDENED CEMENTIUM ARTICLE |
| CN103435298B (en) * | 2013-08-08 | 2015-04-22 | 中国石油化工股份有限公司 | Method of utilizing well-drilling solid waste soil to prepare concrete or concrete blocks |
| CN103641290A (en) * | 2013-12-09 | 2014-03-19 | 天津工业大学 | Sludge dewatering concentration and consolidation treatment method |
| CN108409103A (en) * | 2018-04-17 | 2018-08-17 | 曹恩惠 | A kind of municipal sewage sludge and the deeply dehydrating sludge agent of trade effluent factory |
| CN110282854A (en) * | 2019-05-31 | 2019-09-27 | 中运建设控股有限公司 | A kind of river and lake silt solidifies stable medicament and preparation method thereof |
| CN111440001B (en) * | 2020-04-26 | 2020-10-30 | 四川颐千石油工程有限公司 | Curing agent for making bricks after curing water-based drilling cuttings as well as preparation method and application of curing agent |
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