CN1792898A - Solidified agent for drilling well waste mud - Google Patents
Solidified agent for drilling well waste mud Download PDFInfo
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- CN1792898A CN1792898A CN 200510045234 CN200510045234A CN1792898A CN 1792898 A CN1792898 A CN 1792898A CN 200510045234 CN200510045234 CN 200510045234 CN 200510045234 A CN200510045234 A CN 200510045234A CN 1792898 A CN1792898 A CN 1792898A
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- waste mud
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- mud
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Abstract
A solidifying agent for the used sludge of drilling well is proportionally prepared from powdered thioaluminate cement clinker, semi-hydrated gypsum powder, calcium lime, and polyacrylamide through grinding. Its advantages are short solidifying time, low cost and no secondary pollution.
Description
Technical field
The present invention relates to the petroleum drilling technology of preventing and remedying pollution, specifically a kind of curing additive that prevents that drilling waste mud from polluting.
Background technology
Several thousand mouthfuls of the annual new well-diggings of China, the waste mud of every mouthful of well generation is greatly about the 70-80 cubic meter, water ratio is up to more than 60%, these waste muds are a kind of mixtures that comprise multiple harmful substances, usually contain in the drilling well discarded slurry materials such as the deleterious organism of surrounding environment, heavy metal ion, oils and soluble salts, directly discharge or abandon in dirty mud sump, can be to water system and ecotope produce harmful effect on every side.Because the intractability of these waste muds is bigger, often be deposited near the well site, cause the pollution of water source and environment, taken valuable cultivated land resource simultaneously, the sapce charge of annual every mouthful of well reaches about 40,000 yuan, and the environment that freely discharges also the marine site of offshore drilling oil recovery waste drilling mud has caused great effect.If the waste mud of every mouthful of well generation is all solidified harmless treatment and regeneration fully, will save the more than one hundred million units of fund every year.At present, though existing solidify material production, as the patent No. be: 93110918.3 and 00124329.2 patent of invention, selected basic material are silicate cement.The solidifying agent curing speed that has is slow, water source and destruction soil near the water in the drilling waste mud of Pai Chuing pollutes simultaneously.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, and provide a kind of can in and drilling waste mud in objectionable impurities, realization is carried out harmless treatment to drilling waste mud, has the ability of solidifying sewage, sewage in the drilling waste mud is solidified, and soil is not had the firming agent for drilling waste mud of broken ring effect.
The present invention is achieved in that it is to adopt inorganic materials, and the firming agent for drilling waste mud of being made up of solidifying agent, sorbent material, complexing agent, flocculation agent is processed into through scientific and reasonable formula combination is levigate.Solidifying agent is the sulphoaluminate cement clinker fine powder, and dosage is the 49.8-69.5% of firming agent for drilling waste mud weight; Sorbent material is a semi-hydrated gypsum powder, and dosage is the 10-20% of firming agent for drilling waste mud weight; Complexing agent is a unslaked lime, and dosage is the 20-30% of firming agent for drilling waste mud weight; Flocculation agent is a polyacrylamide, and dosage is the 0.1-0.5% of firming agent for drilling waste mud weight; Above-mentioned substance joins in the drilling waste mud with the form of uniform mixture, and the weight percent of its maximum total dosage solidifying agent and drilling waste mud is 1: 3.
The preferred ratio of each raw material weight per-cent of firming agent for drilling waste mud of the present invention is: sulphoaluminate cement clinker fine powder 59.7%, semi-hydrated gypsum powder 15%, calcium lime powder 25%, polyacrylamide 0.3%.
Curing mechanism and effect:
In drilling waste mud, add this invention solidifying agent, make it to transform solid (false soil) landfill in the original place as soil.This method can reduce the erosion to soil of metal ion in the waste drilling fluid and organism largely, thereby reduces influence and the harm of waste drilling fluid to environment.Simultaneously, can guarantee that again the waste drilling fluid pond can second ploughing or recovery original appearance in drilling engineering one end.This invention is the inorganic solidification agent based on hydraulic material.
According to the condensation mechanism of hydraulic material, the pure water hard material is met water, and hydration reaction can take place, and the aquation initial stage loses flowability the hydraulic material slurries and part plasticity-based on the cohesion reticulated structure, causes condensing; The aquation later stage is then based on the crystalline structure net, with the adhesion that is in contact with one another of microcrystal, and through whole slurry.Because the contact adhesion is to rely on the more intense chemical bond of bonding force to carry out, and therefore has the intensity more much higher than the initial stage, the intensity of hydraulic material calculus mainly produces in this stage.
According to the hydraulic material hydrated theory, more than the solidifying agent produced of prescription with drilling waste mud blended process in a series of chemical reaction can take place, generate " ettringite " (C of a kind of being called as
3A3CSH
32) the crystal mineral, it comprises 32 crystal water, makes it a large amount of sewage is crystallized into solid, thereby has prevented exosmosing of harmful ion in the drilling waste mud.Generally contain a large amount of Ca in the hydraulic material
2+, after waste pulp mixed, the active earths sub-fraction in the slurries was as the hydration reaction of raw material participation hydraulic material, and all the other thoroughly calcifications of most of quilt lose water sensitivity, and become the part of whole induration, change permanent inert substance into.
Hence one can see that, solidification treatment is based on the solid particulate that certain content is arranged in the waste drilling fluid, in waste drilling fluid, add solidifying agent, sorbent material, complexing agent, flocculation agent, make itself and waste drilling fluid generation physics and chemical transformation, noxious pollutant in the waste drilling fluid can be wrapped up, fixing, make pollutent under external force (mainly being water logging) effect, can not dissociate out, reduce its transfer ability, reduce erosion and the leaching of metal ion in the waste drilling fluid and organism largely to soil, make waste drilling fluid transform the glued solid that becomes as soil, and the objectionable constituent in the waste drilling fluid are transformed, sealing, solidify, thereby can eliminate in the waste drilling fluid metal ion and organism to water body, the influence of soil and ecotope and harm, guarantee again simultaneously that waste drilling fluid stores the hole after completion, but very fast just construction processing, earthing moves back the field and restores abandoned land to cultivation.
Solidifying agent volume of the present invention is 15～30% of a drilling well discarded slurry, be that a solidifying agent can solidify three parts of drilling well discarded slurries, solidifying agent promptly loses flowability after stirring with waste mud, solidify and after 5 hours certain intensity can be arranged, one day ultimate compression strength＞0.5MPa of fixed thing, 3 days ultimate compression strength＞1.0MPa reached 2Mpa, coefficient of softening＞0.8 in 7 days.Leach liquor: COD≤150mg/l, petroleum-type≤10mg/l, total chromium≤1.5mg/l, Cr
6≤ 0.5mg/l, total As≤0.5mg/l, total pb≤1.0mg/l.
Embodiment:
Example 1: sulphoaluminate cement clinker fine powder 49.8%; Semi-hydrated gypsum powder 20%; Calcium lime powder 30%; Polyacrylamide 0.2%.
Example 2: sulphoaluminate cement clinker fine powder 69.5%; Semi-hydrated gypsum powder 10%; Calcium lime powder 20%; Polyacrylamide 0.5%.
Most preferred embodiment: sulphoaluminate cement clinker fine powder 59.7%; Semi-hydrated gypsum powder 15%; Calcium lime powder 25%; Polyacrylamide 0.3%.
Said ratio all is weight percentage, measure unit: gram.
The solidifying agent of above proportioning and the weight ratio of drilling waste mud are 1: 3.
On-the-spot using method:
(1) adjusts mud pit level, make it be lower than ground level 50cm, high-order in this way suction pit can dig a dell on the dirty mud sump next door with trencher earlier, then waste mud is put into dell, solidifying agent is let go, stirred evenly, and suction pit is separated 4-6 pond with mud, guarantee each pond mud, the basic homogeneous of landwaste, carry out section construction.Stamp the cofferdam around the suction pit, avoid occurring in the construction process pond phenomenon of overflowing.
(2) discarded slurry is solidified the material of constructing, be transported to the working-yard.
(3) in proportion the even multiple spot of solidifying agent is added in the suction pit, with drilling well discarded slurry, thorough mixing, with about the trencher, about stir, stir evenly repeatedly.
(4) waited cure 7 days, also field of pond earthing is solidified, thickness of earth covering 30-40cm in smooth well site.Precaution in the construction:
(1) all solidify material must have the measure of anti-flying in preparation, transportation, construction process, must not leave over solidify material and other waste after the construction, accomplish the intact material of worker to the greatest extent, and the place is clear.
(2) solidifying agent batching, materials strictness are measured according to proportioning.
(3) mud, landwaste will spread all, and the solidifying agent material will stir, and guarantee fully reaction.
(4) during the section construction of pond, every pond solidify material spreads to loose and wants fast evenly, comprise churning time, and every pond engineering time should be controlled within an hour.
(5) solidify material all will be noted waterproof, protection against the tide in storage and transport process.
(6) solidify in the construction process and solidify material and discarded slurry must not be scattered outside suction pit.
(7) waited cure 5-7 days, ultimate compression strength reaches 1.5Mpa when above, but the ability earthing.
(8) solidify the earthing height and must not be higher than former ground level 30cm.
The invention effect:
The curable various height of the present invention are moisture, high organic, contain multiple harmful substances drilling waste mud or Mud, and can be under lower temperature normal setting and harden, it is short to have the condensation cure time, water stability Can be good, the characteristic that leachable is few and intensity is high. Can be used for solidifying various drilling waste muds and prevent nuisance Oozing out of matter also can be used as fill material, recycles to build the soil.
Therefore, it is relatively low that the present invention has processing cost, easy to use, and construction is succinct; Fixed, solution Poison is effective, and stable period is long more than 10 years; Advantages of nontoxic raw materials, the antibiont degraded; Fixed thing frame for movement The intensity height, low aqueous solubility and lower water permeability, non-secondary pollution satisfies environmental requirement. Along with me The enhancing of each elephant environmental consciousness of state, the curing of drilling waste mud is processed regenerative use technology and will be pushed away comprehensively Extensively, estimate that the consumption of firming agent for drilling waste mud is considerable, have preferably market prospects.
Claims (2)
1, a kind of firming agent for drilling waste mud is characterized in that: it is made up of solidifying agent, sorbent material, complexing agent, flocculation agent, and solidifying agent is the sulphoaluminate cement clinker fine powder, and dosage is the 49.8-69.5% of firming agent for drilling waste mud weight; Sorbent material is a semi-hydrated gypsum powder, and dosage is the 10-20% of firming agent for drilling waste mud weight; Complexing agent is a unslaked lime, and dosage is the 20-30% of firming agent for drilling waste mud weight; Flocculation agent is a polyacrylamide, and dosage is the 0.1-0.5% of firming agent for drilling waste mud weight; Above-mentioned firming agent for drilling waste mud joins in the drilling waste mud with the form of uniform mixture, and the weight percent of its dosage solidifying agent and drilling waste mud is 1: 3.
2, firming agent for drilling waste mud according to claim 1 is characterized in that wherein each raw material weight per-cent is: sulphoaluminate cement clinker fine powder 59.7%, semi-hydrated gypsum powder 15%, calcium lime powder 25%, polyacrylamide 0.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100452349A CN100358816C (en) | 2005-11-22 | 2005-11-22 | Solidified agent for drilling well waste mud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100452349A CN100358816C (en) | 2005-11-22 | 2005-11-22 | Solidified agent for drilling well waste mud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1792898A true CN1792898A (en) | 2006-06-28 |
| CN100358816C CN100358816C (en) | 2008-01-02 |
Family
ID=36804572
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100452349A Expired - Fee Related CN100358816C (en) | 2005-11-22 | 2005-11-22 | Solidified agent for drilling well waste mud |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100471585C (en) * | 2006-07-03 | 2009-03-25 | 张明罡 | Curing agent for waste drilling mud and use method therefor |
| CN101607811B (en) * | 2009-07-16 | 2011-01-05 | 温州大学 | Slurry curing formula |
| CN101941828A (en) * | 2010-08-31 | 2011-01-12 | 中铁四局集团有限公司 | Slurry curing agent |
| CN102050559A (en) * | 2010-06-29 | 2011-05-11 | 中国石油天然气股份有限公司 | Oily sludge concentrating agent and preparation and application thereof |
| CN102206070A (en) * | 2011-03-18 | 2011-10-05 | 南京工业大学 | Process for making bricks by steam curing of titanium gypsum blended with toxic sludge |
| CN102295401A (en) * | 2010-06-25 | 2011-12-28 | 中国石油化工集团公司 | Harmless treatment method of polysulfonate drilling fluid waste mud in deep well |
| CN102320709A (en) * | 2011-05-10 | 2012-01-18 | 任丘市华北石油天华环保节能有限公司 | Slurry curing agent |
| CN103435298A (en) * | 2013-08-08 | 2013-12-11 | 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 |
| CN103524015A (en) * | 2013-10-22 | 2014-01-22 | 秦广山 | Mud curing agent and preparation method thereof |
| CN104529283A (en) * | 2014-12-15 | 2015-04-22 | 上海三瑞高分子材料有限公司 | Oilfield waste drilling mud solidified material |
| CN106277663A (en) * | 2016-04-29 | 2017-01-04 | 天津城建大学 | Sludge solidifying agent and application, sludge curing soil |
| CN111675483A (en) * | 2020-06-24 | 2020-09-18 | 深圳大学 | Slurry flocculation curing agent and preparation method and application thereof |
| CN113800794A (en) * | 2021-09-26 | 2021-12-17 | 乐山嘉豫环境科技有限公司 | Preparation method of curing agent for waste drilling mud in oil field |
| CN115432995A (en) * | 2022-06-28 | 2022-12-06 | 广州市北二环交通科技有限公司 | Perforated brick prepared by utilizing engineering waste slurry |
| CN116425458A (en) * | 2022-08-02 | 2023-07-14 | 长江大学 | Curing agent and application thereof in curing treatment of drilling waste |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466286Y (en) * | 2000-12-22 | 2001-12-19 | 中国石油天然气集团公司 | Pump house made of waste drilling mud and curing material |
| CN1493650A (en) * | 2003-07-17 | 2004-05-05 | 武汉大学 | High cement paste solidifying agent |
| CN1226120C (en) * | 2003-09-22 | 2005-11-09 | 济南大学 | No-baking brick made of oil field sludge and its production process |
| CN1597579A (en) * | 2004-08-04 | 2005-03-23 | 胜利油田华胜环保产业有限责任公司 | Well drilling waste sludge environmental protection treatment agent and waste sludge treatment technology |
-
2005
- 2005-11-22 CN CNB2005100452349A patent/CN100358816C/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100471585C (en) * | 2006-07-03 | 2009-03-25 | 张明罡 | Curing agent for waste drilling mud and use method therefor |
| CN101607811B (en) * | 2009-07-16 | 2011-01-05 | 温州大学 | Slurry curing formula |
| CN102295401A (en) * | 2010-06-25 | 2011-12-28 | 中国石油化工集团公司 | Harmless treatment method of polysulfonate drilling fluid waste mud in deep well |
| 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 |
| CN102050559A (en) * | 2010-06-29 | 2011-05-11 | 中国石油天然气股份有限公司 | Oily sludge concentrating agent and preparation and application thereof |
| CN102050559B (en) * | 2010-06-29 | 2012-05-30 | 中国石油天然气股份有限公司 | Oily sludge concentrating agent and preparation and application thereof |
| CN101941828B (en) * | 2010-08-31 | 2014-02-12 | 中铁四局集团有限公司 | Slurry curing agent |
| CN101941828A (en) * | 2010-08-31 | 2011-01-12 | 中铁四局集团有限公司 | Slurry curing agent |
| CN102206070A (en) * | 2011-03-18 | 2011-10-05 | 南京工业大学 | Process for making bricks by steam curing of titanium gypsum blended with toxic sludge |
| CN102320709A (en) * | 2011-05-10 | 2012-01-18 | 任丘市华北石油天华环保节能有限公司 | Slurry curing agent |
| CN103435298A (en) * | 2013-08-08 | 2013-12-11 | 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 |
| CN103524015A (en) * | 2013-10-22 | 2014-01-22 | 秦广山 | Mud curing agent and preparation method thereof |
| CN103524015B (en) * | 2013-10-22 | 2015-08-19 | 秦广山 | A kind of mud curing agent and preparation method thereof |
| CN104529283A (en) * | 2014-12-15 | 2015-04-22 | 上海三瑞高分子材料有限公司 | Oilfield waste drilling mud solidified material |
| CN106277663A (en) * | 2016-04-29 | 2017-01-04 | 天津城建大学 | Sludge solidifying agent and application, sludge curing soil |
| CN111675483A (en) * | 2020-06-24 | 2020-09-18 | 深圳大学 | Slurry flocculation curing agent and preparation method and application thereof |
| CN113800794A (en) * | 2021-09-26 | 2021-12-17 | 乐山嘉豫环境科技有限公司 | Preparation method of curing agent for waste drilling mud in oil field |
| CN115432995A (en) * | 2022-06-28 | 2022-12-06 | 广州市北二环交通科技有限公司 | Perforated brick prepared by utilizing engineering waste slurry |
| CN115432995B (en) * | 2022-06-28 | 2023-09-12 | 广州市北二环交通科技有限公司 | Porous brick prepared from engineering waste slurry |
| CN116425458A (en) * | 2022-08-02 | 2023-07-14 | 长江大学 | Curing agent and application thereof in curing treatment of drilling waste |
| CN116425458B (en) * | 2022-08-02 | 2024-02-06 | 长江大学 | Curing agent and application thereof in curing treatment of drilling waste |
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| CN100358816C (en) | 2008-01-02 |
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Granted publication date: 20080102 Termination date: 20121122 |