CN108821542A - A kind of innoxious cleaning treatment agent of waste drilling mud and its application method - Google Patents
A kind of innoxious cleaning treatment agent of waste drilling mud and its application method Download PDFInfo
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- CN108821542A CN108821542A CN201810720949.7A CN201810720949A CN108821542A CN 108821542 A CN108821542 A CN 108821542A CN 201810720949 A CN201810720949 A CN 201810720949A CN 108821542 A CN108821542 A CN 108821542A
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- Prior art keywords
- cleaning treatment
- treatment agent
- drilling mud
- mud
- waste drilling
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Abstract
The present invention provides a kind of waste drilling mud cleaning treatment agent, by mass percentage, composed of the following components：Flocculant：15%-65%, cement：15%~50%, lime：20%~45%；The flocculant is the mixture of polyaluminium sulfate, aluminium polychloride, bodied ferric sulfate, at least two medicaments in aluminum sulfate, wherein the mass percent of each component amounts to 100%.It is used for the upper cleaning treatment agent to handle waste drilling mud, according to the mass percent of waste drilling mud, the dosage of cleaning treatment agent is 1%~25%.Add cleaning treatment agent simultaneously, the ejected wash water of the waste drilling mud mass percent 50%~100% handled needed for needing to add.Used ejected wash water can be the various water bodies such as ejected wash water, production recycle-water, process recycle-water.Then it by the way that 20~60min of reaction is sufficiently stirred, is separated by solid-liquid separation after sufficiently reacting by solid-liquid separating equipment.
Description
Technical field
The present invention relates to a kind for the treatment of agents, and in particular to a kind of innoxious cleaning treatment medicament of waste drilling mud
And its application method, polysulfonate system mud is particularly directed to apparent harmless treatment effect, belongs to environment protection field.
Background technique
Waste drilling mud is that drilling fluid carries the waste that drilling cuttings is discharged from solid controlling system in drilling process, mainly includes
Configure drilling fluid needed for liquid phase (water, oil and synthetic-based mud), maintain drilling fluid specific gravity solid phase (bentonite, weighting material and
Other discontinuous organic phases), improve property of drilling fluid various chemical substances (inorganic matters such as soluble-salt, alkali, homopolar polymer,
And the organic matters such as cellulose family, humic acids, resinae, acrylic compounds, starch, lignin) and surfactant.Tool
There is the features such as high pH, high COD, high stability, high salinity, poor biodegradability, direct emission endangers ecological environment larger.
Mode to waste drilling mud harmless treatment includes solidification, chemical treatment two ways, curing process at present
While realizing discarded slurry harmless treatment, solid phase increment can be caused to be more than 10% or even 50% polymeric system mud
More than；For the mud of polysulfonate system, solidifies added amount of chemical and can be higher and be difficult to up to standard, lead to final solid phase amount abruptly increase, it is right
Later use and transhipment cause biggish pressure.Curing method is fewer and fewer in practical applications.Chemical treatment includes that chemistry is clear
It washes and chemical oxidation, passes through cleaned come out of a part of organic matter in Process of Chemical Cleaning waste drilling mud and incorporate filtrate
In, it is further processed subsequently through water process, another part organic matter carries out oxidation processes by chemical agent and is degraded to CO2With
H2O is discharged from discarded slurry system.The chemical cleaning inorganic agent applied at present can not achieve requirement up to standard substantially, especially
The polysulfonate system three for being directed to deep-well area is opened and the dumping mud treatment effect of follow-up phase is more undesirable.Therefore one kind is researched and developed
Waste drilling mud harmless treatment cleaning treatment agent can realize harmless treatment to the mud of polymeric system, can also be real
Now polysulfonate system three is opened and the discarded slurry of follow-up phase carries out innoxious cleaning treatment.The research and development of the medicament are to Discarded Drilling Materials
The popularization and application of the innoxious cleaning treatment of mud have important practical significance.
Summary of the invention
It is an object of the invention to overcome the shortcomings of existing discarded slurry cleaning treatment technique, one kind is provided and is not only suitable for
The processing of polymeric system mud cleans, is also applied for the cleaning treatment agent of polysulfonate system mud cleaning treatment.Of the invention is another
It is designed to provide a kind of innoxious cleaning treatment method of waste drilling mud.
To achieve the above object, the present invention uses following technical scheme：
A kind of innoxious cleaning treatment agent of waste drilling mud, it is by mass percentage, composed of the following components：
Flocculant：15%-65%
Cement：15%~50%
Lime：20%~45%
The flocculant is polyaluminium sulfate, aluminium polychloride, bodied ferric sulfate, at least two medicaments in aluminum sulfate
Mixture, wherein the mass percent of each component amounts to 100%.
Preferably, flocculant ingredient and ratio are determined according to waste drilling mud system, when waste drilling mud is poly-
Objects system is closed, flocculant is polyaluminium sulfate：5%~10%, aluminium polychloride：5%~25%, bodied ferric sulfate：10%~
20%, aluminum sulfate：13%~15% mixture；When waste drilling mud is polysulfonate system, flocculant is polyaluminium sulfate：
0%~10%, aluminium polychloride：0%~25%, bodied ferric sulfate：0%~20%, aluminum sulfate：In 0%~15% at least
The mixture of two kinds of medicaments.
The present invention also provides a kind of innoxious cleaning treatment methods of waste drilling mud, according to the discarded of required processing
Cleaning treatment agent 1%~25% is added in the mass percent of drilling mud, meanwhile, the waste drilling handled needed for adding
The ejected wash water of quality of mud fluid percentage 50%~100% is separated by solid-liquid separation sufficiently after reaction.
Preferably, the solid phase for being unsatisfactory for qualified discharge requirement after being separated by solid-liquid separation to cleaning treatment carries out repeated washing.
It can be with after being applied in waste drilling mud processing the beneficial effects of the present invention are, cleaning treatment agent of the invention
Guarantee that polymeric system mud and polysulfonate system mud solid phase are all satisfied the requirement of qualified discharge.Discarded slurry after solidification is available
In fill, pave the way, well site infrastructure etc..
Specific embodiment
A specific embodiment of the invention is described further below with reference to embodiment.But under the present invention is not limited in
State embodiment.Unless otherwise noted, each raw material employed in the present invention can be bought by market and be obtained.
Waste drilling mud cleaning treatment agent of the invention, it is by mass percentage, composed of the following components：Flocculation
Agent：15%-65%, cement：15%~50%, lime：20%~45%；The flocculant is polyaluminium sulfate, polyaluminium
Aluminium, bodied ferric sulfate, at least two medicaments in aluminum sulfate mixture, wherein the mass percent of each component amounts to
100%.
It is used for cleaning treatment agent as described above of the invention to handle waste drilling mud, according to the matter of waste drilling mud
Percentage is measured, the dosage of cleaning treatment agent is 1%~25%.It adds cleaning treatment agent simultaneously, is handled needed for needing to add
The ejected wash water of waste drilling mud mass percent 50%~100%.Used ejected wash water can for clear water, production recycle-water,
The various water bodies such as process recycle-water.Then it by the way that 20~60min of reaction is sufficiently stirred, is set after sufficiently reacting by being separated by solid-liquid separation
Standby (filter press, centrifuge etc.) is separated by solid-liquid separation.
The waste drilling mud of polymeric system can meet the qualified discharge of solid phase by primary cleaning.And deep-well is regional
Polysulfonate system mud then needs to clean by 1~2 repeated washing inorganic agent, and the solid phase after cleaning can meet local discharge
Standard.
Embodiment 1
Application site：Xinjiang tooth breathes out block well location；
Mud source：Drilling well solid control equipment vibrating screen desilts the discarded slurry 1000m that desander and centrifuge generate3, mud
Starch specific gravity 1.5t/m3；
Slip：Drilling mud is polysulfonate system, mainly includes bentonite, sulfonated phenol formaldehyde resin, organic polymer object
In addition matter etc. contains a small amount of oils, leachate Testing index is pH9.3, COD 1260mg/l after mud desiccation.
Cleaning treatment agent is prepared：The discarded slurry cleaning treatment agent of this area uses aluminium polychloride 10%, polyaluminum sulfate
Iron 18%, aluminum sulfate 5%, cement 49%, lime 18% are uniformly mixed, and it is stand-by to obtain cleaning treatment agent.
Treatment process：Well drilling waste mud enters in reaction chamber after being promoted, and the quality of mud fluid of processing is 1500t, presses
Cleaning treatment agent is added according to mass ratio 21%, cleaning treatment agent additional amount is 441t, and processing mud amount 0.75 is added in cleaning process
Ejected wash water (1125m again3), after sufficiently reacting 40min, it is promoted in plate and frame filter press and is separated by solid-liquid separation by high-pressure pump,
Solid phase is known as mud cake, and liquid phase reuse is as ejected wash water or discharge.
Solid phase assays：Leachate is dried and prepared to mud cake, and pH, COD and heavy metal analysis are carried out to leachate.
Interpretation of result：Moisture content 68% before waste drilling mud processing, solid phase contains after dosing is cleaned and is separated by solid-liquid separation
Water rate is 36%, and obtaining solid phase quality up to standard is about 1242 tons.Through detecting, the pH of leachate is 11.23, COD 120.3mg/
L meets Xinjiang Uygur Autonomous Regions's provincial standard《Oilfield drilling solid waste comprehensively utilizes contamination control requirement》(DB65/
T3997-2017) relevant emission standards.
Embodiment 2
Application site：That block well location of Xinjiang enlightening；
Mud source：Drilling well solid control equipment vibrating screen desilts the discarded slurry 100m that desander and centrifuge generate3, mud
Starch specific gravity 1.4t/m3；
Slip：Drilling mud is drilling well later period polysulfonate system, mainly includes bentonite, sulfonated gilsonite, sulfonated phenolic
In addition resin, polymer etc. contain a small amount of oils, leachate Testing index is pH9.1 after mud desiccation, and COD is
2480mg/l。
Cleaning treatment agent is prepared：The discarded slurry cleaning treatment agent of this area uses polyaluminium sulfate 6%, aluminium polychloride
24%, aluminum sulfate 6%, cement 19%, lime 45% are uniformly mixed, and it is stand-by to obtain cleaning treatment agent.
Treatment process：Well drilling waste mud enters in reaction chamber after being promoted, and the quality of mud fluid of processing is 140t, is divided into
Secondary cleaning, primary cleaning add cleaning treatment agent according to mass ratio 5%, and cleaning treatment agent additional amount is 7.0t, cleaning process
Ejected wash water (the 140m of 1.0 times of mud amount of processing is added3), after sufficiently reacting 30min, plate and frame filter press is promoted to by high-pressure pump
In be separated by solid-liquid separation.Solid phase 65t after separation enters secondary cleaning reaction chamber, adds at cleaning according to the 10% of solid phase quality
Agent 6.5t is managed, while adding solid phase ejected wash water identical in quality, carries out mixing cleaning 30min.Sufficiently pass through high-pressure pump after reaction
It is promoted in plate and frame filter press and is separated by solid-liquid separation.
Solid phase assays：Leachate is dried and prepared to mud cake, and pH, COD and heavy metal analysis are carried out to leachate.
Interpretation of result：Moisture content 70.50% before waste drilling mud processing, after dosing twice is cleaned and is separated by solid-liquid separation
Solid phase moisture content is 42%, and obtaining solid phase quality up to standard is about 95 tons.Through detecting, the pH of leachate is that 11.45, COD is
117.6mg/L meets Xinjiang Uygur Autonomous Regions's provincial standard《Oilfield drilling solid waste comprehensive utilization contamination control is wanted
It asks》(DB65/T3997-2017) relevant emission standards.
Embodiment 3
Application site：Xinjiang English buys block well location；
Mud source：Drilling well solid control equipment vibrating screen desilts the discarded slurry 100m that desander and centrifuge generate3, mud
Starch specific gravity 1.38t/m3；
Slip：Drilling mud is drilling well later period polysulfonate system, mainly includes bentonite, sulfonated gilsonite, sulfonated phenolic
In addition resin, polymer etc. contain a small amount of oils, leachate Testing index is pH9.08 after mud desiccation, and COD is
1870mg/l。
Cleaning treatment agent is prepared：The discarded slurry cleaning treatment agent of this area uses bodied ferric sulfate 10%, aluminum sulfate
15%, cement 35%, lime 40% are uniformly mixed, and it is stand-by to obtain cleaning treatment agent.
Treatment process：Well drilling waste mud enters in reaction chamber after being promoted, and the quality of mud fluid of processing is 138t, is divided into
Secondary cleaning, primary cleaning add cleaning treatment agent according to mass ratio 10%, and cleaning treatment agent additional amount is 13.8t, clean
Ejected wash water (the 138m of 1.0 times of mud amount of processing is added in journey3), after sufficiently reacting 30min, plate compression is promoted to by high-pressure pump
It is separated by solid-liquid separation in machine.Solid phase 91.08t after separation enters secondary cleaning reaction chamber, adds according to the 5% of solid phase quality clear
Inorganic agent 4.56t is washed, while adding solid phase ejected wash water identical in quality, carries out mixing cleaning 30min.Sufficiently pass through height after reaction
Press pump is promoted in plate and frame filter press and is separated by solid-liquid separation.
Solid phase assays：Leachate is dried and prepared to mud cake, and pH, COD and heavy metal analysis are carried out to leachate.
Interpretation of result：Moisture content 65% before waste drilling mud processing, it is solid after dosing twice is cleaned and is separated by solid-liquid separation
Phase moisture content is 38%, and obtaining solid phase quality up to standard is about 107.50 tons.Through detecting, the pH of leachate is that 11.20, COD is
109.7mg/L meets Xinjiang Uygur Autonomous Regions's provincial standard《Oilfield drilling solid waste comprehensive utilization contamination control is wanted
It asks》(DB65/T3997-2017) relevant emission standards.
Embodiment 4
Application site：The big ox in North China ground block well location；
Mud source：Drilling well solid control equipment vibrating screen desilts the discarded slurry 100m that desander and centrifuge generate3, mud
Starch specific gravity 1.56t/m3；
Slip：Drilling mud be drilling well later period polymeric system, mainly comprising bentonite, polymer,
Potassium based polyalcohol etc., leachate Testing index is pH8.7, COD 460mg/l after mud desiccation.
Cleaning treatment agent is prepared：The discarded slurry cleaning treatment agent of this area uses polyaluminium sulfate 10%, polyaluminium
Aluminium 5%, bodied ferric sulfate 10%, aluminum sulfate 15%, cement 30%, lime 30% are uniformly mixed, and it is stand-by to obtain cleaning treatment agent.
Treatment process：Well drilling waste mud enters in reaction chamber after being promoted, and the quality of mud fluid of processing is 156t, according to
Mass ratio 7% adds cleaning treatment agent, and cleaning treatment agent additional amount is 10.92t, and cleaning process is added 0.5 times of quality of mud fluid
Ejected wash water is promoted in plate and frame filter press by high-pressure pump and is separated by solid-liquid separation after sufficiently reacting 30min.
Solid phase assays：Leachate is dried and prepared to mud cake, and pH, COD and heavy metal analysis are carried out to leachate.
Interpretation of result：Former quality of mud fluid 156t, moisture content 75%, the solid phase moisture content 35% after over cleaning is separated by solid-liquid separation,
Solid phase quality is 76.80t；The mud uses solidification processing method, and dosage meets requirement up to standard for 11.20%, contains after solidification
Water rate 54%, solid phase quality is 122.77t after solidification.Subsequent cost is cleared since solid phase increment increases.Through detecting, leachate
PH be 8.35, COD 86.9mg/L, meet《Integrated wastewater discharge standard》(GB8978-1996) first discharge standard.
Embodiment 5
Application site：North China Hangjin Banner block well location；
Mud source：Drilling well solid control equipment vibrating screen desilts the discarded slurry 100m that desander and centrifuge generate3, mud
Starch specific gravity 1.35t/m3；
Slip：Drilling mud be drilling well later period polymeric system, mainly comprising bentonite, polymer,
Potassium based polyalcohol etc. belongs to the horizontal directional drilling stage after backfill, and leachate Testing index is pH9.0 after mud desiccation, and COD is
780mg/l。
Cleaning treatment agent is prepared：The discarded slurry cleaning treatment agent of this area uses polyaluminium sulfate 5%, aluminium polychloride
25%, bodied ferric sulfate 20%, aluminum sulfate 15%, cement 15%, lime 20% are uniformly mixed, and it is stand-by to obtain cleaning treatment agent.
Treatment process：Well drilling waste mud enters in reaction chamber after being promoted, and the quality of mud fluid of processing is 135t, according to
Mass ratio 8% adds cleaning treatment agent, and cleaning treatment agent additional amount is 10.8t, and 0.5 times of quality of mud fluid clear is added in cleaning process
Wash water is promoted in plate and frame filter press by high-pressure pump and is separated by solid-liquid separation after sufficiently reacting 30min.
Solid phase assays：Leachate is dried and prepared to mud cake, and pH, COD and heavy metal analysis are carried out to leachate.
Interpretation of result：Former quality of mud fluid 135t, moisture content 81%, the solid phase moisture content 39% after over cleaning is separated by solid-liquid separation,
Solid phase quality is 59.75t；The mud uses solidification processing method, and dosage meets requirement up to standard for 10.80%, contains after solidification
Water rate 65%, solid phase quality is 114.94t after solidification.Subsequent cost is cleared since solid phase increment increases.Through detecting, leachate
PH be 7.94, COD 90.6mg/L, meet《Integrated wastewater discharge standard》(GB8978-1996) first discharge standard.
The present invention has passed through preferred embodiment and has carried out detailed explanation.However, by studying carefully above, to each
The variation and increase of embodiment are also apparent to those of ordinary skill in the art.It is intended that it is all this
A little variations and increase have been fallen in the protection scope of the claims in the present invention.
Term used herein is only to be illustrated to specific embodiment, is not intended to and limits the present invention
System.Unless otherwise defined, all terms (including technical terms and scientific terms) used herein are led with belonging to the present invention
The understanding of the those skilled in the art in domain is identical.Must also it is clear that, it is logical in such as dictionary except there is specific definition outer herein
The term often defined should be construed to can have the consistent meaning in the context of this specification and the relevant technologies, without that should solve
The idealization or excessively formalization released.Well known function or structure are repeated no more for the considerations of brief and clear aspect.
Claims (5)
1. a kind of innoxious cleaning treatment agent of waste drilling mud, it is characterised in that：By mass percentage, by following
Group is grouped as：
Flocculant：15%-65%
Cement：15%~50%
Lime：20%~45%
The flocculant is the mixing of polyaluminium sulfate, aluminium polychloride, bodied ferric sulfate, at least two medicaments in aluminum sulfate
Object, wherein the mass percent of each component amounts to 100%.
2. cleaning treatment agent according to claim 1, it is characterised in that：Flocculant is determined according to waste drilling mud system
Ingredient and ratio, when waste drilling mud is polymeric system, flocculant is polyaluminium sulfate：5%~10%, polyaluminium
Aluminium：5%~25%, bodied ferric sulfate：10%~20%, aluminum sulfate：13%~15% mixture；When waste drilling mud is
Polysulfonate system, flocculant are polyaluminium sulfate：0%~10%, aluminium polychloride：0%~25%, bodied ferric sulfate：0%~
20%, aluminum sulfate：The mixture of 0%~15% at least two medicaments, wherein flocculant total amount is cleaning treatment agent total amount
15%-65%.
3. a kind of innoxious cleaning treatment method of waste drilling mud, it is characterised in that：According to the discarded brill of required processing
Cleaning treatment agent 1%~25% of any of claims 1 or 2 is added in the mass percent of well mud, meanwhile, add required place
The ejected wash water of the waste drilling mud mass percent 50%~100% of reason is separated by solid-liquid separation sufficiently after reaction.
4. according to the method described in claim 3, it is characterized in that：Qualified discharge is unsatisfactory for after being separated by solid-liquid separation to cleaning treatment
It is required that solid phase carry out repeated washing.
5. the method according to claim 3 or 4, it is characterised in that：Ejected wash water is made to the liquid phase reuse after separation of solid and liquid.
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| CN110451905A (en) * | 2019-08-23 | 2019-11-15 | 鄂尔多斯市固邦环保科技有限公司 | A kind of water base drilling cuttings cinder metakaolin base decontamination robust material and decontamination fixing method |
| CN111946278A (en) * | 2020-08-19 | 2020-11-17 | 中国地质科学院探矿工艺研究所 | Harmless treatment method for geological core drilling waste flushing fluid |
| CN112010413A (en) * | 2020-08-03 | 2020-12-01 | 中国石油天然气集团有限公司 | Gel breaking treatment method and cyclic utilization method of drilling waste liquid and gel breaker |
| CN112047551A (en) * | 2020-09-03 | 2020-12-08 | 成都恩承科技股份有限公司 | Method for quickly removing COD (chemical oxygen demand) of sulfonated drill cutting leaching solution |
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| CN112047551A (en) * | 2020-09-03 | 2020-12-08 | 成都恩承科技股份有限公司 | Method for quickly removing COD (chemical oxygen demand) of sulfonated drill cutting leaching solution |
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Application publication date: 20181116 |