CN108240186A - Oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment - Google Patents
Oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment Download PDFInfo
- Publication number
- CN108240186A CN108240186A CN201611227387.XA CN201611227387A CN108240186A CN 108240186 A CN108240186 A CN 108240186A CN 201611227387 A CN201611227387 A CN 201611227387A CN 108240186 A CN108240186 A CN 108240186A
- Authority
- CN
- China
- Prior art keywords
- oil
- drilling fluid
- phase
- based drilling
- density water
- 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.)
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
Abstract
The present invention relates to drilling well solid liquid waste environment protection treatings during oil exploitation and reutilization technology field, it is that a kind of oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment, oil-containing is discarded high-density water-based drilling fluid heavy weight additive by this method, oil phase recycles, liquid phase is re-used in drilling fluid, workover fluid etc., partial solid phase is recycled and reused for curing agent raw material, oil-containing is discarded into high-density water-based drilling fluid innoxious governance and is reused, industrial economics are good, application prospect is good, is conducive to oil field clean manufacturing.
Description
Technical field
The present invention relates to drilling well solid liquid waste environment protection treatings during oil exploitation and reutilization technology field, are a kind of
Oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment.
Background technology
Oil-containing discards high-density water-based drilling fluid and refers generally to oil content ＞ 5% in drilling fluid, density ＞ 2.0g/cm3It is discarded
Water-base drilling fluid is included into greasy filth management, is put into《National Hazard waste register》, code HW08.Because wherein containing big
Measure clay on stratum etc. in drilling process, it is impossible to meet drilling fluid demand, common methods use centrifuge separation of solid and liquid, and liquid phase reaches
It is reused after to drilling fluid demand, solid phase often becomes difficulty in treatment, and directly landfill increase cost also results in waste；Biology
Method is relatively low to oil content requirement, and the reaction time is long, can not recycle oil phase, and economic benefit is affected.Environment protection treating, mesh
Be realize it is innoxious, power be realize comprehensive utilization economic value, therefore, high density water-based drilling is discarded to oil-containing at present
Liquid wood has ripe industrial treatment method, perplexs oil field clean manufacturing.
Invention content
The present invention provides a kind of oil-containings to discard high-density water-based drilling fluid comprehensive utilization and method for innocent treatment, overcomes
Oil-containing can be discarded in high-density water-based drilling fluid solid, liquid difference harmless treatment and again by the deficiency of the above-mentioned prior art
It is multiple to utilize, industrialized economy value is improved, is conducive to industrialization.
The technical scheme is that realized by following measures：
A kind of oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment, it is characterised in that according to the following steps
It carries out：
The first step：Oil-containing is discarded high-density water-based drilling fluid by solution feed pump to pump into low speed centrifuge, solution feed pump to from
Flocculant is added in pipeline between scheming, centrifuge speed 1500r/min to 1800r/min, liquid phase is pumped at a high speed after separation
In centrifuge, rotating speed 3200r/min to 4500r/min, the solid phase separate collection that low speed centrifuge and supercentrifuge detach, height
Liquid phase can be recycled and reused for drilling fluid, well killing fluid, workover fluid etc. after fast centrifuge separation；
Second step：Solid phase after low speed centrifuge separation measures its oil content, if oil content is less than or equal to 5%, adds in 5%-10%
It is used to pave the way, pad well site etc. after curing agent solidification Hou Ning 7d；If oil content is more than 5%, at indirect heating apparatus heating
It manages, 300 DEG C to 550 DEG C of indirect heating apparatus cavity temperature, residence time 10min to 40min in solid phase reheater cavity,
Residue is for producing one of raw material of curing agent after processing, grease point after the oil-containing mixed vapour condensation that indirect heating apparatus is collected
From, oil phase recycling, the continuous phase that water phase is prepared for wellbore fluids such as drilling fluid, fracturing fluid, workover fluids；
Third walks：Solid phase after supercentrifuge separation measures its oil content, if oil content is less than or equal to 5%, adds in 5%-10%
It is used to pave the way, pad well site etc. after curing agent solidification Hou Ning 7d；If oil content is more than 5%, at indirect heating apparatus heating
It manages, 300 DEG C to 550 DEG C of indirect heating apparatus cavity temperature, residence time 10min to 20min in solid phase reheater cavity,
Residue is recycled and reused for drilling fluid heavy weight additive after processing after collecting, grease after the oil-containing mixed vapour condensation that indirect heating apparatus is collected
Separation, oil phase recycling, the continuous phase that water phase is prepared for wellbore fluids such as drilling fluid, fracturing fluid, workover fluids.
Here is the further optimization and/or improvements to foregoing invention technical solution：
Flocculant dosage described in the above-mentioned first step adds in 0.05% to 0.5% by mass percentage, in flocculant PAM, calcium oxide
One kind.
Above-mentioned third walks the heavy weight additive as one kind in barite, iron ore, activity barite.
Oil-containing is discarded solid phase in high-density water-based drilling fluid and first separated to greatest extent, and low-speed centrifugal by the present invention
Machine first detaches formation rock and the high solid phase of smectite content, and supercentrifuge detaches heavy weight additive again, improves the effective of heavy weight additive
Content and utility value, liquid phase after separation reach Drilling and completion fluids, repair because solid concentration is low, subparticle is reduced
The performance requirements such as well liquid can also reuse.The solid phase oil content of centrifuge separation it is low can directly cure after for spreading
Road, brickmaking etc., oil content is high after indirect heating apparatus, can oil phase recycling, water phase for preparing workover fluid etc. again, residue is used
In one of curing agent raw material.The present invention realizes harmless treatment and comprehensive utilization, and industrial economics are more preferable, has wide application
Prospect.
Description of the drawings
Process frame chart of the attached drawing 1 for the present invention.
Specific embodiment
The present invention is not limited by following embodiments, can be determined according to the technique and scheme of the present invention with actual conditions specific
Embodiment.Percentage in the present invention is as being mass percent without specified otherwise；Water in the present invention is tap water
Or reach the water of recycling requirement after the 5th step sewage disposal of this method.
In the present invention, for ease of description, the description of the relative position relation of each component is according to Figure of description 1
Butut mode be described.
A kind of oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment, it is characterised in that by following
Step carries out：
The first step：Oil-containing is discarded high-density water-based drilling fluid by solution feed pump to pump into low speed centrifuge, solution feed pump to from
0.1% calcium oxide is added in pipeline between scheming, centrifuge speed 1500r/min, liquid phase is pumped into supercentrifuge after separation
In, rotating speed 3200r/min, the solid phase separate collection that low speed centrifuge and supercentrifuge detach, liquid after supercentrifuge separation
Drilling fluid, well killing fluid, workover fluid etc. mutually can be recycled and reused for.
Second step：Solid phase after low speed centrifuge separation measures its oil content, if oil content is less than or equal to 5%, adds in
It is used to pave the way, pad well site etc. after 5%-10% curing agent solidification Hou Ning 7d；If oil content is more than 5%, added by indirect heating apparatus
It is heat-treated, 300 DEG C DEG C of indirect heating apparatus cavity temperature, residence time 30min in solid phase reheater cavity is residual after processing
Slag is for producing one of raw material of curing agent, water-oil separating after the oil-containing mixed vapour condensation that indirect heating apparatus is collected, oil phase
Recycling, the continuous phase that water phase is prepared for wellbore fluids such as drilling fluid, fracturing fluid, workover fluids.
Third walks：Solid phase after supercentrifuge separation measures its oil content, if oil content is less than or equal to 5%, adds in
It is used to pave the way, pad well site etc. after 5%-10% curing agent solidification Hou Ning 7d；If oil content is more than 5%, added by indirect heating apparatus
It is heat-treated, 300 DEG C of indirect heating apparatus cavity temperature, residence time 20min in solid phase reheater cavity, residue after processing
Drilling fluid heavy weight additive is recycled and reused for after collection, water-oil separating after the oil-containing mixed vapour condensation that indirect heating apparatus is collected, oil phase
Recycling, the continuous phase that water phase is prepared for wellbore fluids such as drilling fluid, fracturing fluid, workover fluids.
More than technical characteristic constitutes the embodiment of the present invention, can basis with stronger adaptability and implementation result
Actual needs increases and decreases non-essential technical characteristic, to meet the needs of different situations.
Claims (3)
1. a kind of oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment, it is characterised in that by following step
It is rapid to carry out：
The first step：Oil-containing is discarded high-density water-based drilling fluid by solution feed pump to pump into low speed centrifuge, solution feed pump to from
Flocculant is added in pipeline between scheming, centrifuge speed 1500r/min to 1800r/min, liquid phase is pumped at a high speed after separation
In centrifuge, rotating speed 3200r/min to 4500r/min, the solid phase separate collection that low speed centrifuge and supercentrifuge detach, height
Liquid phase can be recycled and reused for drilling fluid, well killing fluid, workover fluid etc. after fast centrifuge separation；
Second step：Solid phase after low speed centrifuge separation measures its oil content, if oil content is less than or equal to 5%, adds in 5%-10%
It is used to pave the way, pad well site etc. after curing agent solidification Hou Ning 7d；If oil content is more than 5%, at indirect heating apparatus heating
It manages, 300 DEG C to 550 DEG C of indirect heating apparatus cavity temperature, residence time 10min to 40min in solid phase reheater cavity,
Residue is for producing one of raw material of curing agent after processing, grease point after the oil-containing mixed vapour condensation that indirect heating apparatus is collected
From, oil phase recycling, the continuous phase that water phase is prepared for wellbore fluids such as drilling fluid, fracturing fluid, workover fluids；
Third walks：Solid phase after supercentrifuge separation measures its oil content, if oil content is less than or equal to 5%, adds in 5%-10%
It is used to pave the way, pad well site etc. after curing agent solidification Hou Ning 7d；If oil content is more than 5%, at indirect heating apparatus heating
It manages, 300 DEG C to 550 DEG C of indirect heating apparatus cavity temperature, residence time 10min to 20min in solid phase reheater cavity,
Residue is recycled and reused for drilling fluid heavy weight additive after processing after collecting, grease after the oil-containing mixed vapour condensation that indirect heating apparatus is collected
Separation, oil phase recycling, the continuous phase that water phase is prepared for wellbore fluids such as drilling fluid, fracturing fluid, workover fluids.
2. a kind of oil-containing according to claim 1 discards high-density water-based drilling fluid comprehensive utilization and harmless treatment side
Method, it is characterised in that flocculant dosage described in the first step adds in 0.05% to 0.5% by mass percentage, flocculant PAM, oxidation
One kind in calcium.
3. a kind of oil-containing according to claim 1 discards high-density water-based drilling fluid comprehensive utilization and harmless treatment side
Method, it is characterised in that third walks the heavy weight additive as one kind in barite, iron ore, activity barite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227387.XA CN108240186A (en) | 2016-12-27 | 2016-12-27 | Oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611227387.XA CN108240186A (en) | 2016-12-27 | 2016-12-27 | Oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108240186A true CN108240186A (en) | 2018-07-03 |
Family
ID=62701797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611227387.XA Pending CN108240186A (en) | 2016-12-27 | 2016-12-27 | Oil-containing discards high-density water-based drilling fluid comprehensive utilization and method for innocent treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108240186A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143653A (en) * | 2019-05-13 | 2019-08-20 | 中国海洋石油集团有限公司 | Weak Gels drilling liquid method for treating waste liquid |
| CN112658020A (en) * | 2021-01-26 | 2021-04-16 | 新疆中金科瑞新能源发展股份有限公司 | Hydraulic transmission, microbubble separation and pyrolysis drying treatment process for drilling waste |
| CN115340121A (en) * | 2022-10-14 | 2022-11-15 | 四川君和环保股份有限公司 | Method for separating barite from shale gas drilling mud |
-
2016
- 2016-12-27 CN CN201611227387.XA patent/CN108240186A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143653A (en) * | 2019-05-13 | 2019-08-20 | 中国海洋石油集团有限公司 | Weak Gels drilling liquid method for treating waste liquid |
| CN110143653B (en) * | 2019-05-13 | 2021-12-10 | 中国海洋石油集团有限公司 | Weak gel drilling fluid waste liquid treatment method |
| CN112658020A (en) * | 2021-01-26 | 2021-04-16 | 新疆中金科瑞新能源发展股份有限公司 | Hydraulic transmission, microbubble separation and pyrolysis drying treatment process for drilling waste |
| CN115340121A (en) * | 2022-10-14 | 2022-11-15 | 四川君和环保股份有限公司 | Method for separating barite from shale gas drilling mud |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180703 |
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| WD01 | Invention patent application deemed withdrawn after publication |