CN106050175A - Off-ground treatment technology for waste drilling fluid - Google Patents
Off-ground treatment technology for waste drilling fluid Download PDFInfo
- Publication number
- CN106050175A CN106050175A CN201610547300.0A CN201610547300A CN106050175A CN 106050175 A CN106050175 A CN 106050175A CN 201610547300 A CN201610547300 A CN 201610547300A CN 106050175 A CN106050175 A CN 106050175A
- Authority
- CN
- China
- Prior art keywords
- mud
- treatment technology
- waste drilling
- drilling mud
- land treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/127—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering by centrifugation
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/068—Arrangements for treating drilling fluids outside the borehole using chemical treatment
-
- 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
Disclosed is a novel off-ground treatment technology for drilling fluid. According to the two mechanisms of colloid chemical coagulation and solid waste flocculation, a colloid coagulation agent, an acidifying agent, stepless coagulant aids and a decolorising agent are sequentially added into the waste drilling fluid and stirred step by step, and finally, a mud-water separation effect is realized through a mechanical separation mode. The novel off-ground treatment technology for the drilling fluid is simple, safe in operation, low in cost, good in repeatability and suitable for industrial application. Solid mud obtained through the method is large in density, hard in texture and good in dispersing performance, has good application value in plate and frame moulding, and meanwhile can be used for making ornamental ceramic crafts.
Description
Technical field
The present invention relates to the treatment technology of a kind of waste drilling mud, particularly relate to a kind of waste drilling mud and do not land place
Reason technology.
Background technology
Waste drilling mud is one of three major source of pollution in oilfield operation.Along with the exploration and development of petroleum resources, to people
Bring precious resources while also bring bigger environment hidden danger.It is if these garbages are arbitrarily stacked, untreated,
To cause soil, earth's surface and subsoil water are contaminated, time serious, even the vegetation of surrounding, domestic animal, people be caused serious prestige
The side of body.Therefore, waste drilling mud is effectively treated the extensive concern increasingly causing Chinese scholars.
The waste drilling mud processing method generally acknowledged the most in the world is divided into seven kinds: chemical curing method, chemistry solid-liquid divide
Process from method, MTC transformation technology, soil cultivating method, drying and incinerating, carry out a biological disposal upon, cheat interior landfill or re-injection etc..So far, chemistry
It is more that solid-liquid isolation method is studied, and by adding flocculant in mud, gel breaker realizes solid-liquid separation.
Chemistry solid-liquid separation technique, in whole mud conditioning operation, not only realizes the decrement of waste drilling mud discharge
Changing, improve the recycling of liquid phase, and process simple for process, saving processes the time.
Along with both at home and abroad for the continuous reinforcement of environmental conservation dynamics, for drilling wastes emission request the most increasingly
Strictly.The operating system of chemistry solid-liquid separation, without special operation condition, can be immediately introduced operation after mud leaves drilling well
System, saves operation floor space, it is achieved does not land effect with boring, prevents harmful substance to land resource, water on source
Power resource, and vegetation, domestic animal and the harm of people around.
CN1887752A discloses a kind of method that oil field sludge resource processes.This processing method includes
Discarded slurry mud rinses desquamation, and dilution absorption, broken glue take off in steady oil removing, consolidation and solid-liquid separation, filter cake and backwash desalination, filter
Liquid utilizes with oxidation filtration reprocessing, mud cake solidification.Can thoroughly solve the garbage of generation in drilling well production process and adopt
The pollution problem of the oil sludge that oil flood pattern produces and comprehensive utilization of waste materials problem, turn waste into wealth, can obtain bigger economy
Benefit.
CN101302067A discloses a kind of water-based system drilling waste slurry solid-liquid separating medium harmless treatment process,
Mainly comprise the following steps that: its pH value is regulated by pending water-based system drilling waste slurry solid-liquid separating medium industrial acids
To no more than 5, add fenton reagent after pH value regulation and carry out oxidation processes, add nertralizer after oxidation reaction and pH value is regulated
To 7-8, it is neutralized reaction, through being filtered to remove filtering residue feeding microorganism reactor after neutralizing reaction, with taking from activated sludge warp
Cultivate, tame, screen after microorganism carry out biodegradation process.Water-based system drilling waste slurry solid-liquid separating medium is through the present invention
After process, the every Testing index discharging current does not exceeds standard, and fullys meet the integrated wastewater discharge mark that Chinese Government formulates
Standard, and processing cost is low, treatment effeciency is high.
Summary of the invention
Present invention aim to overcome that prior art is not enough, it is provided that discarded a kind of drilling mud does not land process skill with boring
Art, efficiently solves processing cost high, and operating condition requires height, and the problem of environmental pollution.
The technology of the present invention is achieved in the following ways:
A. mud it is sufficiently stirred for so that it is solid-liquid is biphase to be uniformly dispersed, it is simple to subsequent operation.
B. in mud stirring add poly-colloid, such as sodium polyacrylate, polyacrylamide, sulfomethylation polyacrylamide,
Sodium alginate, carboxymethyl cellulose (sodium) etc., regulate mud colloidization degree, fluid state be converted into and freeze shape gel state.
C. stand 1-5min, strengthen mud colloidal state performance.
D. acidulant, such as sulphuric acid, nitric acid, hydrochloric acid, phosphoric acid, formic acid, acetic acid, propanoic acid, sulfonic acid, benzoic acid etc. are added, acid
Change processes, and is quickly stirred until homogeneous brokenly glue, alternately exists without bulk lamellar.
E. inorganic flocculation aid, such as aluminum chloride, iron chloride, aluminum sulfate, iron sulfate, calcium hydroxide, calcium chloride, polymerization are added
Aluminum chloride, poly-ferric chloride, hydroxyl polymeric aluminum, polyaluminium sulfate, bodied ferric sulfate etc., flocculation small granular suspended matters also regulates wadding
The size of body granule, the most at the uniform velocity stirs.
F. decolorising agent, such as polyacrylamide, polyethylene glycol oxide, polyvinyl alcohol, urea-formaldehyde condensates, dodecyl sulphur are added
Acid sodium etc., effectively reduce liquid phase colourity.The most at the uniform velocity stirring to all flcos are united.
G. mechanical separation solid-liquid is biphase, separate mode: one, centrifugation；Two, filter press separates.Centrifuge speeds
For 2000-3000r/min, the time is 5-10min；The time of filter press is 30-45min.
H. weigh the water yield, calculate mud solid concentration after separating.
Waste drilling mud is not landed process with boring by the present invention collochemistry technology of a kind of less expensive, makes waste sludge
Slurry has reached discharge standard.Garbage after process is after a period of time, and surface covers one layer of planting soil, or with planting soil with one
Certainty ratio mixes, and can meet the requirement of plant growing.Preferably solving dumping mud treatment costly, operating condition is harsh,
The problems such as environmental pollution.
Accompanying drawing explanation
Fig. 1 does not land treatment technology flow chart for implementing discarded slurry with boring；
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail, but the present invention should not be limited by the examples.
Embodiment 1.
It is that 44.5% oil field is given up as a example by drilling well water-base mud by solid content.Take 1000mL mud, with the stirring of 200r/min
Speed stirring 20min, is sequentially added into the polyacrylamide 70g that concentration is 3%, appropriate acidulant sulphuric acid subsequently, coagulates without machine aided
Agent concentration is the aluminum chloride 10g and dodecyl sodium sulfate 1g that concentration is 2% of 3%, is stirred well to all flcos and unites, with
Speed is that flco is centrifuged separating by the centrifuge of 2000-3000r/min, and centrifugation time is 5-10min.Mud after solid-liquid separation
The solid content of cake is 85.2%.
Embodiment 2.
It is that 24.6% oil field is given up as a example by drilling well water-base mud by solid content.Take 1000mL mud, with the stirring of 200r/min
Speed stirring 20min；It is sequentially added into the polyacrylamide 45g that concentration is 5%, appropriate acidulant acetic acid subsequently, coagulates without machine aided
Agent concentration is the polyethylene glycol oxide 1g of the calcium chloride 15g and 2% of 2%, is stirred well to all flcos and unites, with filter press side
Formula mechanical separation, disengaging time is 35min.After solid-liquid separation, the solid content of mud cake is 91.3%.
Claims (7)
1. waste drilling mud does not land treatment technology, and its processing procedure comprises the following steps:
(1) discarded slurry carries out pretreatment to mud before not landing and processing, and i.e. stirs.
(2) add poly-colloid, regulate mud colloidization degree, fluid state be converted into and freeze shape gel state.
(3) stand 1-5min, strengthen mud colloidal state performance.
(4) add acidulant, acidification, be quickly stirred until homogeneous brokenly glue, alternately exist without bulk lamellar.
(4) adding inorganic flocculation aid, flocculation small granular suspended matters also regulates the size of floc particle, the most at the uniform velocity stirs.
(5) add secondary flocculant, effectively reduce liquid phase colourity.The most at the uniform velocity stirring to all flcos are united.
(6) mechanical separation solid-liquid is biphase, separate mode: one, centrifugation；Two, filter press separates.
(7) weigh the water yield, calculate mud solid concentration after separating.
2. waste drilling mud as described in claim 1 does not land treatment technology, it is characterised in that: mud in described step (1)
Pretreatment time is not less than 20min, and mixing speed is not less than 200r/min.
3. waste drilling mud as described in claim 2 does not land treatment technology, it is characterised in that: poly-glue in described step (2)
It is 3-5kg that agent often processes the dosage of one cube of discarded slurry, and liquid solution adds, and solution concentration is 3-7%.
4. waste drilling mud as described in claim 3 does not land treatment technology, it is characterised in that: used in described step (3)
Acidifying gel breaker often to process the dosage of one cube of discarded slurry be 10-15kg, liquid solution adds, and solution concentration is 30-
70%.
5. waste drilling mud as described in claim 4 does not land treatment technology, it is characterised in that: used in described step (4)
It is 1-2kg that inorganic flocculation aid often processes the dosage of one cube of discarded slurry, and liquid solution adds, and solution concentration is 2-5%.
6. waste drilling mud as described in claim 5 does not land treatment technology, it is characterised in that: used in described step (5)
It is 0.1-0.2kg that secondary flocculant often processes the dosage of one cube of discarded slurry, and liquid solution adds, and solution concentration is 2-
5%.
7. waste drilling mud as described in claim 6 does not land treatment technology, its processing procedure: necessary in described step (6)
Carry out mechanical dehydration again after first carrying out isolating separated liquid phase, with ensure whole process dehydration rate i.e. process after consolidating of mud contain
Amount.Centrifuge speeds is 2000-3000r/min, and the time is 5-10min；The filter press time is 30-45min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547300.0A CN106050175A (en) | 2016-07-12 | 2016-07-12 | Off-ground treatment technology for waste drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610547300.0A CN106050175A (en) | 2016-07-12 | 2016-07-12 | Off-ground treatment technology for waste drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050175A true CN106050175A (en) | 2016-10-26 |
Family
ID=57186161
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610547300.0A Pending CN106050175A (en) | 2016-07-12 | 2016-07-12 | Off-ground treatment technology for waste drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050175A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592765A (en) * | 2017-09-30 | 2019-04-09 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | A kind of mud does not land the gel breaking method of technique gel breaker and rejected well drilling liquid |
| CN110272107A (en) * | 2019-06-19 | 2019-09-24 | 晋江市吉发环保科技有限公司 | A kind of waste-water treatment efficient composite flocculation agent and its application |
| CN111517685A (en) * | 2020-04-30 | 2020-08-11 | 中国环境科学研究院 | Roadbed filling material taking natural gas drilling waste as raw material and preparation method thereof |
| CN112479513A (en) * | 2020-11-06 | 2021-03-12 | 南京工业大学 | Preparation method and application of oil-containing sludge composite curing material |
| CN114920385A (en) * | 2022-04-25 | 2022-08-19 | 成都苏坤环保科技有限公司 | Oilfield produced water treatment process |
-
2016
- 2016-07-12 CN CN201610547300.0A patent/CN106050175A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109592765A (en) * | 2017-09-30 | 2019-04-09 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | A kind of mud does not land the gel breaking method of technique gel breaker and rejected well drilling liquid |
| CN109592765B (en) * | 2017-09-30 | 2021-12-10 | 中国石油化工股份有限公司华北油气分公司石油工程技术研究院 | Gel breaker for mud non-landing process and gel breaking method of waste drilling fluid |
| CN110272107A (en) * | 2019-06-19 | 2019-09-24 | 晋江市吉发环保科技有限公司 | A kind of waste-water treatment efficient composite flocculation agent and its application |
| CN111517685A (en) * | 2020-04-30 | 2020-08-11 | 中国环境科学研究院 | Roadbed filling material taking natural gas drilling waste as raw material and preparation method thereof |
| CN111517685B (en) * | 2020-04-30 | 2021-04-23 | 中国环境科学研究院 | Roadbed filling material taking natural gas drilling waste as raw material and preparation method thereof |
| CN112479513A (en) * | 2020-11-06 | 2021-03-12 | 南京工业大学 | Preparation method and application of oil-containing sludge composite curing material |
| CN114920385A (en) * | 2022-04-25 | 2022-08-19 | 成都苏坤环保科技有限公司 | Oilfield produced water treatment process |
| CN114920385B (en) * | 2022-04-25 | 2024-03-01 | 成都苏坤环保科技有限公司 | Oilfield produced water treatment process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |