CN102086377A - Low-density water-based waste drilling slurry solidifying agent - Google Patents
Low-density water-based waste drilling slurry solidifying agent Download PDFInfo
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- CN102086377A CN102086377A CN2009102166068A CN200910216606A CN102086377A CN 102086377 A CN102086377 A CN 102086377A CN 2009102166068 A CN2009102166068 A CN 2009102166068A CN 200910216606 A CN200910216606 A CN 200910216606A CN 102086377 A CN102086377 A CN 102086377A
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- solidifying agent
- drilling mud
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- waste drilling
- low density
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- Treatment Of Sludge (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention relates to low-density water-based waste drilling slurry solidifying agent, which comprises cement, fly ash, destabilizing agent and modifier, and is characterized by also comprising 10 mass percent of sand. In the invention, the addition of sand into the solidifying agent can improve the solid content and density of the system and has certain effects on the reduction of solidified body leachate chemicaloxygendemand(COD)cr and improvement on compression strength; and the replacement of a certain amount of cement and destabilizing agent with the added sand in the solidifying agent reduces cost.
Description
Technical field
The present invention relates to the water base waste drilling mud solidifying agent of a kind of low density.
Background technology
Press the compositing characteristic of fluid medium and system in the drilling mud, but drilling mud is divided into four classes: water-based drilling mud, oil-based drilling mud, gaseous type drilling mud, synthetic basic drilling mud.Wherein, water-based drilling mud is most widely used, and occupies dominant position in drilling mud always, and oneself develops into present polymkeric substance drilling mud by initial scattered drilling mud this class drilling mud; Oil-based drilling mud is mixed with chemical processing agent such as diesel oil or mineral oil, lime, high-density weighting material, emulsifying agents usually, is applicable to deep drilling and marine drilling.The composition of all kinds of water-based drilling mud and characteristics.
Pollutent in the discarded slurry is mainly derived from the additive of drilling mud.The used drilling mud auxiliary agent of modern petroleum drilling operation roughly can be divided into pulping material, high-density weighting material, fluid loss agent, tackifier, emulsifying agent, shale control agent, viscosity-depression agent, flocculation agent, lubricant, sterilant, defoamer, releasing stuck agent, inhibiter, temperature resisting agent, plugging agent etc., add required sectional interest stable materials such as extraordinary drilling mud such as aerated fluid, saturated brine drilling mud, drilling mud additives finally can expand to 16 big classes.In these additives, all kinds of novel synthetic material since in various degree employing modern synthesis technology, more or less environment is had detrimentally affect, even if generally be inert weighting agent class, also there is the part material may cause environmental hazard, as lead glance and barium carbonate.But barium carbonate has good solubility in acid, yet can form the great soluble barium salt of toxicity as (BaCl after acidifying
2).And barium carbonate itself promptly has certain biological lethal toxicity, belongs to the row of national secondary hazardous material management.
The waste drilling mud solidification technology is the kind waste drilling mud innoxious process for treating that grew up in the last few years.Its principle is to add the solidifying agent with fixed performance in waste drilling mud, make it change into similar concrete cured body, fixed its interior objectionable constituent are as heavy metal ion, organism, oils etc., diafiltration be can significantly reduce, thereby influence and harm reduced environment to soil.It is a kind of simplification to the MTC technology, is the method a kind of more easily accepted by people that replaces simple backfill treatment process, more and more comes into one's own, and develops also very fast.
Fixing and the harmless treatment of the minimizing of drilling well discarded slurry, pollutent is one of important content of oil-gas field ecological environmental protection.
Summary of the invention
The technical problem to be solved in the present invention has provided the water base waste drilling mud solidifying agent of a kind of low density, not only cost low and handle after leach liquor and cured article all can be up to state standards.
The technical scheme that the present invention solve the technical problem employing is:
The water base waste drilling mud solidifying agent of low density comprises cement, flyash, coagulant and adjustment agent, it is characterized in that, comprises that also mass percent is 10% sand.
Add cement 15-25g, flyash 5-15g, coagulant 3-5g in the useless low density waste drilling mud of described every 100ml, adjust agent 2-4ml and sand 10g.
Preferably, cement consumption is 25g.
Preferably, described flyash consumption is 10g.
Described coagulant is a kind of in sal epsom, the zinc sulfate.
Preferably, described coagulant consumption is 4g.
Preferably, described adjustment agent consumption is 3ml.
The present invention determines that CODcr, pH value and intensity promptly can characterize the effect of slurry curing as main monitoring index.These several indexs are to be difficult to administer, particularly CODcr.Because drilling mud uses polymkeric substance and various organism such as oils, emulsifying agent, defoamer, thinner, lubricant etc. in a large number, make the difficulty of discarded slurry solidification treatment increase greatly, after the discarded slurry solidification treatment, if can make these three indexs simultaneously up to standard, the index of other pollutent generally also can reach relevant pollutant emission standard so.Therefore the solidification treatment discarded slurry makes its cured body soak solution and cured article reach the related standards of national regulation, and key is to administer this three indexs.
The invention has the beneficial effects as follows:
(1) the present invention increases sand in solidifying agent, has improved that system contains admittedly, system density, reduces and the raising of ultimate compression strength has certain effect for cured body leach liquor CODcr.
(2) the present invention with increasing sand to replace a certain amount of cement and coagulant, has reduced cost in solidifying agent.
(3) its cured body leach liquor of waste gas mud and the cured article after solidifying agent of the present invention is handled all can reach state specified standards.
Embodiment
The water base waste drilling mud solidifying agent of low density comprises cement, flyash, coagulant and adjustment agent, it is characterized in that, comprises that also mass percent is 10% sand.
Add cement 15-25g, flyash 5-15g, coagulant 3-5g in the useless low density waste drilling mud of described every 100ml, adjust agent 2-4ml and sand 10g.
Preferably, described cement consumption is 25g, and the flyash consumption is 10g, and the coagulant consumption is 4g, and adjusting the agent consumption is 3ml.
Described coagulant is a kind of in sal epsom, the zinc sulfate.
Solidifying agent leach liquor assay under the different proportionings sees Table 1.
The different solidifying agent leach liquor of table 1 assay
| Cement | Flyash | Coagulant | Adjust agent | COD/mg/L | The pH value | Intensity Mpa | |
| 1 | 15 | 5 | 3 | 2 | 361.3 | 8.65 | 0.5 |
| 2 | 15 | 10 | 4 | 3 | 345.5 | 7.45 | 0.9 |
| 3 | 15 | 15 | 5 | 4 | 321.4 | 7.21 | 1 |
| 4 | 20 | 5 | 4 | 4 | 208.1 | 8.32 | 0.7 |
| 5 | 20 | 10 | 5 | 2 | 165.5 | 9.48 | 0.8 |
| 6 | 20 | 15 | 3 | 3 | 248.5 | 9.56 | 0.7 |
| 7 | 25 | 5 | 5 | 3 | 90.1 | 9.89 | 0.6 |
| 8 | 25 | 10 | 3 | 2 | 123.1 | 9.63 | 0.6 |
| 9 | 25 | 15 | 4 | 4 | 96.5 | 10.81 | 1 |
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction, to any simple modification, equivalent variations that above embodiment did, all falls within protection scope of the present invention on every foundation technical spirit of the present invention.
Claims (7)
1. the water base waste drilling mud solidifying agent of low density comprises cement, flyash, coagulant and adjustment agent, it is characterized in that, comprises that also mass percent is 10% sand.
2. the water base waste drilling mud solidifying agent of low density according to claim 1 is characterized in that, contains cement 15-25g, flyash 5-15g, coagulant 3-5g in the useless low density waste drilling mud of described every 100ml, adjusts agent 2-4ml and sand 10g.
3. the water base waste drilling mud solidifying agent of low density according to claim 2 is characterized in that described cement consumption is 25g.
4. the water base waste drilling mud solidifying agent of low density according to claim 2 is characterized in that described flyash consumption is 10g.
5. the water base waste drilling mud solidifying agent of low density according to claim 2 is characterized in that, described coagulant is a kind of in sal epsom, the zinc sulfate.
6. according to claim 2 or the water base waste drilling mud solidifying agent of 5 described low density, it is characterized in that described coagulant consumption is 4g.
7. the water base waste drilling mud solidifying agent of low density according to claim 2 is characterized in that, described adjustment agent consumption is 3ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102166068A CN102086377A (en) | 2009-12-07 | 2009-12-07 | Low-density water-based waste drilling slurry solidifying agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102166068A CN102086377A (en) | 2009-12-07 | 2009-12-07 | Low-density water-based waste drilling slurry solidifying agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102086377A true CN102086377A (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009102166068A Pending CN102086377A (en) | 2009-12-07 | 2009-12-07 | Low-density water-based waste drilling slurry solidifying agent |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351091A (en) * | 2013-07-18 | 2013-10-16 | 中国石油化工股份有限公司 | Process for treating waste well slurry with fly ash |
| CN105295939A (en) * | 2015-10-23 | 2016-02-03 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Curing agent for petroleum drilling clean production and preparing method of curing agent |
| CN106699036A (en) * | 2016-12-29 | 2017-05-24 | 克拉玛依市金鑫科技有限公司 | Poly-sulfonated drilling fluid rock debris while-drilling treatment curing agent as well as preparation method and using method thereof |
| CN115557738A (en) * | 2022-10-24 | 2023-01-03 | 宁夏新大地环保科技工程有限公司 | Roadbed filling material and manufacturing method thereof |
-
2009
- 2009-12-07 CN CN2009102166068A patent/CN102086377A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103351091A (en) * | 2013-07-18 | 2013-10-16 | 中国石油化工股份有限公司 | Process for treating waste well slurry with fly ash |
| CN105295939A (en) * | 2015-10-23 | 2016-02-03 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | Curing agent for petroleum drilling clean production and preparing method of curing agent |
| CN106699036A (en) * | 2016-12-29 | 2017-05-24 | 克拉玛依市金鑫科技有限公司 | Poly-sulfonated drilling fluid rock debris while-drilling treatment curing agent as well as preparation method and using method thereof |
| CN106699036B (en) * | 2016-12-29 | 2019-07-12 | 克拉玛依市金鑫科技有限公司 | Sulphonated polymer mud landwaste administers curing agent and preparation method thereof and application method with brill |
| CN115557738A (en) * | 2022-10-24 | 2023-01-03 | 宁夏新大地环保科技工程有限公司 | Roadbed filling material and manufacturing method thereof |
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Application publication date: 20110608 |