CN104389557A - Processing technology of waste oil-based mud and oil-based drilling cuttings - Google Patents
Processing technology of waste oil-based mud and oil-based drilling cuttings Download PDFInfo
- Publication number
- CN104389557A CN104389557A CN201410529344.1A CN201410529344A CN104389557A CN 104389557 A CN104389557 A CN 104389557A CN 201410529344 A CN201410529344 A CN 201410529344A CN 104389557 A CN104389557 A CN 104389557A
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- CN
- China
- Prior art keywords
- oil
- mud
- base mud
- drill cuttings
- drilling cuttings
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- 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
-
- 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
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
- E21B41/005—Waste disposal systems
Abstract
The invention relates to a processing technology of waste oil-based mud and oil-based drilling cuttings, in particular to a technology for manufacturing base mud and oil-based mud through the waste oil-based mud and the oil-based drilling cuttings. The technology comprises the steps of 1, collecting the waste oil-based mud and the oil-based drilling cuttings, 2, utilizing equipment for carrying out separation processing on solid phases of the waste oil-based mud and solid phases of the oil-based drilling cuttings, 3, carrying out grinding processing on the waste oil-based mud and the oil-based drilling cuttings after large-particle sold phases are removed, 4, manufacturing the ground waste oil-based mud and the ground oil-based drilling cuttings into the base mud and the oil-based mud, and 5, carrying out up-to-standard release processing on the large-particle sold phases obtained after separation. According to the technology, reclamation and innocent processing can be carried out on the waste oil-based mud and the oil-based drilling cuttings, and the solid phases in the original waste mud and the oil-based drilling cuttings are ground and then are manufactured into the base mud and the oil-based mud, and then are recycled. Secondary pollution hardly exists, and equipment investment and operation cost are low. The technology has the obvious environment benefits, social benefits and economic benefits.
Description
Technical field
The present invention relates to the treatment process of a kind of discarded oil-base mud and oil-based drill cuttings, especially make the technique of base slurry and oil-base mud with discarded oil-base mud and oil-based drill cuttings, belong to the process field of oil-base mud and oil-based drill cuttings in shale gas, tight gas and the drilling well of conventional gas and oil field.
Background technology
Oil-base mud is discarded in drilling well and oil-based drill cuttings is the pollutant produced in oil gas well mining process.Use widely in the drilling engineering of salt deposit, anhydrite formation, carnallite layer and high temperature deep well.It is a kind of complicated heterogeneous system containing mineral oil, phenolic compound and heavy metal, and the aromatic hydrocarbon in its leachate diesel oil has larger bio-toxicity.Oil drilling is produced and all will be produced a large amount of discarded slurries or oil-based drill cuttings every day, discarded oil-base mud and oil-based drill cuttings directly discharge can have influence on nutrient environment condition and the quality thereof of plant growth, long-term accumulation can cause the heavy damage of surface vegetation, contaminated soil and water source, jeopardize the existence of the mankind.
According to environmental requirement, discarded oil-base mud and oil-based drill cuttings all will carry out post-processed.The discarded oil-base mud of process and oil-based drill cuttings mode have biodegradation, burning disposal etc. traditionally, but the treatment effect of biological degradation method to discarded oil-base mud and oil-based drill cuttings is subject to the time and naturally limits, need the longer cycle could carry out decomposing digestion on oil-base mud and oil-based drill cuttings and its process is also subject to the impact of natural environment, and for some compositions in oil-base mud and oil-based drill cuttings, the condition in nature can not allow it be decomposed preferably; For the oil-contained drilling cuttings that part oil content is lower, adopt land-fill method process, landfill method investment is less, but it does not really eliminate oil pollutant in oil-contained drilling cuttings, rainy season shower, and the infiltration of underground water likely causes oils to be overflowed, Polluted area environment; For burning disposal, oil-base mud and oil-based drill cuttings contain the complicated heterogeneous system of mineral oil, phenolic compound and heavy metal, burning process is carried out to it and can produce a large amount of air pollutants, in the process of process, inevitably create secondary pollution, and more not easily process.Oil-base mud and oil-based drill cuttings all process as a kind of pollutant by above-mentioned traditional processing method substantially, but have ignored the possibility of its resource reclaim recycling, and the present invention wishes to be solved preferably in economic benefit social benefit environmental benefit.
Summary of the invention
The object of the invention is for overcoming the deficiencies in the prior art, provide the treatment process of a kind of discarded oil-base mud and oil-based drill cuttings, a kind of cost is low, the simple to operate technique making base slurry and oil-base mud with discarded oil-base mud and oil-based drill cuttings.Oil base in described oil-base mud and oil-based drill cuttings comprises diesel oil based, white oil base, biological oil base, mineral oil based etc.The present invention can not only solve the pollution problem of oil-base mud and oil-based drill cuttings, also recycles discarded oil-base mud and oil-based drill cuttings, and has good environmental benefit and economic benefit.
The scheme that the present invention solves above technical problem is:
The treatment process of a kind of discarded oil-base mud of the present invention and oil-based drill cuttings, adopts step to be: 1. to the collection of discarded oil-base mud and oil-based drill cuttings; 2. utilize the separating treatment of equipping discarded oil-base mud and oil-based drill cuttings solid phase; 3. the discarded oil-base mud pair after removing bulky grain solid phase and oil-based drill cuttings carry out grinding process (include but not limited to ball milling, roller mill and other by particle grinding mode); 4. the discarded oil-base mud after grinding and oil-based drill cuttings are made into base slurry and oil-base mud; 5. the qualified discharge process of pair bulky grain solid phase be isolated to.
Compared with prior art, advantage of the present invention is, 1. discarded oil-base mud and oil-based drill cuttings are processed, utilize grinding process creatively to carry out grinding processing to discarded oil-base mud and oil-based drill cuttings, the solid phase particles in former discarded oil-base mud and oil-based drill cuttings becomes the granule of the mud property that can re-use or not affect new production because of grinding; 2. be made into base slurry or oil-base mud again, being separated the bulky grain solid-phase component one that obtains is account for smaller, is also convenient to qualified discharge process simultaneously.Substantially achieve the recycling again of discarded oil-base mud and oil-based drill cuttings, effectively process and reclaimed resource more economically.
Technique in the present invention can realize resource and the harmless treatment of discarded oil-base mud and oil-based drill cuttings, in former discarded slurry or the solid phase of oil-based drill cuttings can be made into base slurry or oil-base mud and recycling after grinding.Almost there is no secondary pollution, equipment investment and running cost lower, there is significant environmental benefit, Social benefit and economic benefit.
Accompanying drawing explanation
Fig. 1 is the block diagram of the treatment process of a kind of discarded oil-base mud of the present invention and oil-based drill cuttings.
Detailed description of the invention
The present invention is further illustrated below in conjunction with accompanying drawing:
As shown in Figure 1, the treatment process of a kind of discarded oil-base mud of the present invention and oil-based drill cuttings, the steps include: 1. collections to discarded oil-base mud and oil-based drill cuttings; 2. utilize the separating treatment of equipping discarded oil-base mud and oil-based drill cuttings solid phase; 3. the discarded oil-base mud after pair removing bulky grain solid phase and oil-based drill cuttings carry out grinding process; 4. the discarded oil-base mud after grinding and oil-based drill cuttings are made into base slurry and oil-base mud; 5. the qualified discharge process of pair bulky grain solid phase be isolated to.
Embodiment 1
The discarded oil-base mud collected in certain oil drilling is produced and oil-based drill cuttings, by corresponding grinding process, grinding process is carried out to discarded oil-base mud and oil-based drill cuttings on request, discarded oil-base mud and oil-based drill cuttings its index after grinding process reach the requirement being again made into base slurry or oil-base mud, can be used as raw material and directly join in the middle of manufacturing process.Its technique achieves resource and the harmless treatment of oil-base mud and oil-based drill cuttings, can reclaim the discarded oil-base mud of the wherein overwhelming majority.There is no secondary pollution, equipment investment and running cost lower, there is significant environmental benefit, Social benefit and economic benefit.
Example: 1 ton of discarded oil-base mud and oil-based drill cuttings process Economic and Efficiency Analysis
Suppose process service charge 1000 yuan (income); 1 ton of discarded oil-base mud and oil-based drill cuttings solid concentration 40% that is 400 kilograms, its disposal cost up to standard 600 yuan (expenditure); Need grinding part to need disposal cost 400 yuan (expenditure) altogether after 1 ton of discarded oil-base mud is separated with oil-based drill cuttings solid phase bulky grain and is separated, after grinding, be made as expense 1000 yuan (expenditure) needed for base slurry and oil-base mud; Income 5000 yuan sold by 1 ton of base slurry or oil-base mud, because 1 ton of discarded oil-base mud and oil-based drill cuttings only produce 0.6 ton of base slurry or oil-base mud, therefore the income that 1 ton of discarded slurry or oil-based drill cuttings are made into product is 3000 yuan (incomes), then process the income of 1 ton of discarded oil-base mud and oil-based drill cuttings:
Service charge 1000 yuan+product sells income 3000 yuan-disposal cost up to standard 600 yuan-disposal cost 400 yuan-disposal cost 1000 yuan=2000 yuan.
Therefore economic benefit is very remarkable.
Claims (1)
1. a treatment process for discarded oil-base mud and oil-based drill cuttings, the step of employing is: 1. to the collection of discarded oil-base mud and oil-based drill cuttings; 2. utilize the separating treatment of equipping discarded oil-base mud and oil-based drill cuttings solid phase; 3. the discarded oil-base mud after pair removing bulky grain solid phase and oil-based drill cuttings carry out grinding process; 4. the discarded oil-base mud after grinding and oil-based drill cuttings are made into base slurry and oil-base mud; 5. the qualified discharge process of pair bulky grain solid phase be isolated to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529344.1A CN104389557A (en) | 2014-10-10 | 2014-10-10 | Processing technology of waste oil-based mud and oil-based drilling cuttings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410529344.1A CN104389557A (en) | 2014-10-10 | 2014-10-10 | Processing technology of waste oil-based mud and oil-based drilling cuttings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104389557A true CN104389557A (en) | 2015-03-04 |
Family
ID=52607506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410529344.1A Pending CN104389557A (en) | 2014-10-10 | 2014-10-10 | Processing technology of waste oil-based mud and oil-based drilling cuttings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104389557A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863563A (en) * | 2016-06-07 | 2016-08-17 | 成都诺德源环保科技有限公司 | Method and system applicable to harmless treatment and sustainable utilization of oil and gas field drilling waste |
| CN110964335A (en) * | 2018-09-30 | 2020-04-07 | 北京化工大学 | Method for using oil-based drilling cutting treatment residues for paving asphalt filler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863563A (en) * | 2016-06-07 | 2016-08-17 | 成都诺德源环保科技有限公司 | Method and system applicable to harmless treatment and sustainable utilization of oil and gas field drilling waste |
| CN105863563B (en) * | 2016-06-07 | 2018-10-26 | 成都诺德源环保科技有限公司 | A kind of method and system being applied to oilfield drilling waste innoxious governance and sustainable use |
| CN110964335A (en) * | 2018-09-30 | 2020-04-07 | 北京化工大学 | Method for using oil-based drilling cutting treatment residues for paving asphalt filler |
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| PB01 | Publication | ||
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Application publication date: 20150304 |