CN110628450B - Improved treatment process for oil-containing mixtures produced during oil drilling and production - Google Patents
Improved treatment process for oil-containing mixtures produced during oil drilling and production Download PDFInfo
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- CN110628450B CN110628450B CN201910796940.9A CN201910796940A CN110628450B CN 110628450 B CN110628450 B CN 110628450B CN 201910796940 A CN201910796940 A CN 201910796940A CN 110628450 B CN110628450 B CN 110628450B
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- oil
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- heating kettle
- waste gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/002—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
- C10G1/02—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation
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- 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
- E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
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- 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
- E21B21/067—Separating gases from drilling fluids
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
Abstract
The invention belongs to the technical field of mixture separation and recovery processes, and particularly relates to an improved treatment process of an oil-containing mixture generated in the petroleum drilling and oil extraction processes, wherein a fluid mixture in the oil-containing mixture firstly flows through a condenser to be preheated; continuously heating the preheated fluid mixture in the oil-containing mixture and the solid mixture in the oil-containing mixture in the two-stage heating kettle through the feed inlet of the heating kettle, and gasifying and separating the oil base; the gas-phase oil base is filtered by a filter screen on the distillation pipeline and then enters a two-stage condenser for heat dissipation and condensation, the liquid-phase oil base enters a recovery tank for centralized collection, and the residual waste gas is purified and then is exhausted; and (3) allowing the mixture in the heating kettle after oil base separation to enter a high-temperature tempering furnace through a discharge port of the heating kettle for continuous tempering, purifying and evacuating newly generated waste gas, allowing the residual solid material to enter a solid material cooling system through an outlet of the tempering furnace, and bagging and collecting the cooled solid material. The improved oil-based mixture recovery process provided by the invention can completely separate oil bases and other impurities in the oil-containing mixture.
Description
Technical Field
The invention belongs to the technical field of a mixture separation and recovery process, and particularly relates to an improved treatment process of an oil-containing mixture generated in the petroleum drilling and oil extraction processes.
Background
In the process of petroleum drilling and exploitation, a large amount of oil-based mud and oil-based mud drill cuttings are generated, wherein the oil-based mud and the oil-based mud drill cuttings mainly comprise a solid phase, an oil phase and a water phase, the solid phase mainly comes from broken rock debris, mud additives and sundries such as stones in the transportation process, and the oil phase mainly comprises diesel oil, white oil, biological oil, mineral oil and the like. Part of the oil mud in the oil-based mud and oil-based mud drill cuttings and the oil adsorbed on the solid phase surface are important resources, and if the oil in the oil-based mud and oil-based mud drill cuttings cannot be effectively recycled, the oil can have serious influence on the regional environment and cause serious resource waste.
Similarly, during the process of storing and transporting petroleum produced by drilling to an oil refinery, a large amount of oil sludge falling to the ground can be produced, and a large amount of precipitated oil sludge can be produced in a crude oil storage tank and an oil pipeline, and the oil storage and oil transportation capacity of the oil tank and the pipeline can be seriously affected by the precipitated oil sludge if the precipitated oil sludge is not cleaned regularly. However, if the oil bases in the collected and cleaned falling oil sludge and the precipitated oil sludge cannot be effectively recovered, the regional environment is seriously influenced, and meanwhile, serious resource waste is caused.
The company simultaneously discloses a treatment process of an oil-containing mixture, which basically realizes harmless treatment and resource recycling of the oil-containing mixture, but the recovered solid material also contains less than 1 percent of oil and a very small amount of bitumen, which are not completely desorbed, and although the solid material meets the environmental protection discharge standard, the separation and recovery of the mixture are objectively not completely realized.
Disclosure of Invention
The invention aims to provide an improved treatment process of an oil-containing mixture generated in the oil drilling and oil extraction process, which completely separates stubborn oil base and other impurities in the mixture and realizes complete and thorough separation and recovery of the oil-containing mixture.
In order to achieve the purpose, the invention adopts the technical scheme that:
an improved process for treating an oil-containing mixture produced during oil drilling and production, comprising the steps of,
1) preheating the fluid mixture in the oil-containing mixture by passing through a condenser;
2) the preheated oil-containing mixture fluid mixture and the oil-containing mixture solid mixture are continuously heated in the two-stage heating kettle through the feed inlet of the heating kettle, and the oil base is gasified and separated;
3) the gas-phase oil base subjected to thermal gasification separation in the heating kettle is filtered by a filter screen on a distillation pipeline and then enters a two-stage condenser for heat dissipation and condensation, the condensed liquid-phase oil base enters a recovery tank for centralized collection, and the residual waste gas is purified and then emptied;
4) and the mixture in the heating kettle after the oil base is fully separated enters a high-temperature tempering furnace through a discharge port of the heating kettle to be continuously heated and tempered, newly generated waste gas is purified and then emptied, the residual solid material enters a solid material cooling system through an outlet of the tempering furnace, and the cooled solid material is bagged and collected.
The technical scheme of the invention is further improved as follows: in the step 2), the two-stage heating kettles are single-stage long-shaft heating kettles, and the two-stage heating kettles are connected through a spiral conveying pipeline; the single-stage long shaft heating kettle is a horizontal reaction kettle for continuous reaction;
the technical scheme of the invention is further improved as follows: heating and distilling the oil base in the first-stage heating kettle of the two-stage heating kettle in the step 2), and performing high-temperature thermal desorption on the mixture in the second-stage heating kettle;
the technical scheme of the invention is further improved as follows: and 3) purifying the waste gas in the step 3), and emptying the waste gas after the waste gas is subjected to spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal in sequence.
The technical scheme of the invention is further improved as follows: step 4), tempering with a medium-high temperature tempering furnace at 1300 ℃;
the technical scheme of the invention is further improved as follows: and 4) purifying the waste gas in the step 4), and emptying the waste gas after the waste gas is subjected to spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal in sequence.
The technical scheme of the invention is further improved as follows: and 4), the solid material cooling system in the step 4) is a water cooling system, and the main body of the water cooling system is a spiral water cooling unit.
Due to the adoption of the technical scheme, the invention has the following technical effects:
the improved treatment process of the oil-containing mixture produced in the petroleum drilling and oil extraction processes provided by the invention adopts a high-temperature sintering quenching process, and can realize complete separation of oil base and other impurities in the oil-containing mixture, particularly difficult-to-separate asphalt grease and the like, without consuming excessive catalysts, so as to realize complete and complete separation and recovery of the mixture.
The invention provides an improved treatment process of an oil-containing mixture generated in the petroleum drilling and oil extraction processes, which links two reaction kettles through a sealed spiral pipeline to realize continuous production. The yield is improved to more than 2 times of the second generation yield, the energy consumption is reduced by one third of the original energy consumption, the slurry density is not considered, and various fluids and solid oil-containing mixtures and the like can be treated.
The invention provides an improved treatment process of an oil-containing mixture generated in the petroleum drilling and oil extraction processes, wherein the mixture which is fully separated from oil base in a heating kettle enters a high-temperature tempering furnace through a discharge port of the heating kettle to be continuously heated and tempered, and the tempering temperature of the high-temperature tempering furnace is 1300 ℃; the high temperature of 1300 ℃ can realize the re-separation and desorption of various oil-based impurities which are still doped in the oil-based mixture and are difficult to separate, such as pitch grease and the like, after the distillation thermal desorption process, and realize the complete separation of the oil base and other impurities in the oil-containing mixture.
The invention provides an improved treatment process of an oil-containing mixture generated in the oil drilling and production process, which improves and optimizes a preheating system: the condenser heat dissipation principle is applied, the fluid mixture in the oil-containing mixture is preheated at high temperature, and the heating power consumption in the reaction kettle is saved.
According to the improved treatment process of the oil-containing mixture generated in the petroleum drilling and oil extraction processes, waste gas is purified and emptied after being sequentially subjected to the spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal, so that the waste gas is purified more thoroughly, and the emptying process is more environment-friendly.
Drawings
FIG. 1 is a flow diagram of a method for improving the treatment of oil-containing mixtures produced during oil drilling and production.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific embodiments:
the invention discloses an improved treatment process of oil-containing mixture generated in the process of petroleum drilling and oil production, which is used for realizing complete and thorough separation and recovery of the mixture. The following are specific examples:
according to the method flow chart of the improved treatment process of the oil-containing mixture generated in the oil drilling and oil production process, which is shown in the attached figure 1, the improved treatment process of the oil-containing mixture generated in the oil drilling and oil production process, which is disclosed by the invention, comprises the following steps:
1) the fluid mixture in the oil-containing mixture is preheated by passing through a condenser.
2) And the oil-based mixture is continuously heated in the two-stage heating kettle sequentially through the feed inlet of the heating kettle.
In the specific embodiment provided by the invention, the two-stage heating kettles are single-stage long-shaft heating kettles, and the single-stage long-shaft heating kettle is a continuous reaction horizontal reaction kettle; the two stages of heating kettles are connected through a spiral conveying pipeline; specifically, the oil base of the oil-based mixture is heated and distilled in a first-stage heating kettle of a two-stage heating kettle, and the mixture in a second-stage heating kettle is subjected to high-temperature thermal desorption.
3) The gas-phase oil base subjected to thermal gasification separation in the heating kettle is filtered by a filter screen on the distillation pipeline and then enters a two-stage condenser for heat dissipation and condensation, the condensed liquid-phase oil base enters a recovery tank for centralized collection, and the residual waste gas is purified and then emptied.
In the specific embodiment provided by the invention, the waste gas purification is sequentially carried out by a spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal, and then is emptied.
4) And the mixture in the heating kettle after the oil base is fully separated enters a high-temperature tempering furnace through a discharge port of the heating kettle to be continuously heated and tempered, newly generated waste gas is purified and then emptied, the residual solid material enters a solid material cooling system through an outlet of the tempering furnace, and the cooled solid material is bagged and collected.
In the specific embodiment provided by the invention, the tempering temperature of the high-temperature tempering furnace is 1300 ℃; similarly, the waste gas is purified and emptied after sequentially passing through a spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal.
Further, in the specific embodiment provided by the invention, the solid material cooling system is a water cooling system, and the main body of the water cooling system is a spiral water cooling unit. The water cooling system is high in cooling efficiency, can realize cooling of solid materials quickly and efficiently, and can also realize quick cooling of pipelines on the condenser and other high-temperature pipelines simultaneously, so that the stability and reliability of the system in a two-stage heating kettle continuous working mode are guaranteed.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (5)
1. An improved process for treating an oil-containing mixture produced during oil drilling and production, characterized in that: comprises the following steps of (a) carrying out,
1) preheating the fluid mixture in the oil-containing mixture by passing through a condenser;
2) continuously heating the preheated fluid mixture in the oil-containing mixture and the solid mixture in the oil-containing mixture in a two-stage heating kettle through a feeding hole of the heating kettle, gasifying and separating oil bases, heating and distilling the oil bases in a first-stage heating kettle of the two-stage heating kettle, and performing high-temperature thermal desorption on the mixture in a second-stage heating kettle;
3) the gas-phase oil base subjected to thermal gasification separation in the heating kettle is filtered by a filter screen on a distillation pipeline and then enters a two-stage condenser for heat dissipation and condensation, the condensed liquid-phase oil base enters a recovery tank for centralized collection, and the residual waste gas is purified and then emptied;
4) and the mixture in which the oil base is sufficiently separated in the heating kettle enters a high-temperature tempering furnace through a discharge port of the heating kettle to be continuously heated and tempered, the tempering temperature of the high-temperature tempering furnace is 1300 ℃, newly generated waste gas is purified and then is exhausted, the rest solid material enters a solid material cooling system through an outlet of the tempering furnace, and the cooled solid material is bagged and collected.
2. The improved process of claim 1 for treating oil-containing mixtures produced during oil drilling and production, wherein: in the step 2), the two-stage heating kettles are single-stage long-shaft heating kettles, and the two-stage heating kettles are connected through a spiral conveying pipeline; the single-stage long shaft heating kettle is a horizontal reaction kettle for continuous reaction.
3. The improved process of claim 1 for treating oil-containing mixtures produced during oil drilling and production, wherein: and 3) purifying the waste gas in the step 3), and emptying the waste gas after the waste gas is subjected to spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal in sequence.
4. The improved process of claim 1 for treating oil-containing mixtures produced during oil drilling and production, wherein: and 4) purifying the waste gas in the step 4), and emptying the waste gas after the waste gas is subjected to spray tower, cyclone dust removal, speed reduction and temperature reduction, electrostatic dust removal, electrostatic smoke removal and cloth bag dust removal in sequence.
5. The improved process of claim 1 for treating oil-containing mixtures produced during oil drilling and production, wherein: and 4), the solid material cooling system in the step 4) is a water cooling system, and the main body of the water cooling system is a spiral water cooling unit.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178200A (en) * | 2014-08-14 | 2014-12-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Oil-base drilling cuttings thermal analytical treatment method |
| CN107200455A (en) * | 2017-06-21 | 2017-09-26 | 巴州华源泰克油田技术有限公司 | The processing method of oil-based drill cuttings and oily sludge |
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- 2019-08-27 CN CN201910796940.9A patent/CN110628450B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178200A (en) * | 2014-08-14 | 2014-12-03 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Oil-base drilling cuttings thermal analytical treatment method |
| CN107200455A (en) * | 2017-06-21 | 2017-09-26 | 巴州华源泰克油田技术有限公司 | The processing method of oil-based drill cuttings and oily sludge |
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