CN103132935B - Oil drilling drilling cuttings classification vacuum drying treatment technique and treating apparatus - Google Patents
Oil drilling drilling cuttings classification vacuum drying treatment technique and treating apparatus Download PDFInfo
- Publication number
- CN103132935B CN103132935B CN201310057482.XA CN201310057482A CN103132935B CN 103132935 B CN103132935 B CN 103132935B CN 201310057482 A CN201310057482 A CN 201310057482A CN 103132935 B CN103132935 B CN 103132935B
- Authority
- CN
- China
- Prior art keywords
- vacuum
- oil
- pump set
- temperature
- vacuum desiccator
- 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.)
- Expired - Fee Related
Links
Landscapes
- Drying Of Solid Materials (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Oil drilling drilling cuttings classification vacuum drying treatment technique and treating apparatus, while auxiliary heating, by vacuum pump set, dryer inside is extracted into respectively the vacuum of different stage, classification vacuum is utilized the moisture in oil drilling drilling cuttings and diesel oil to be vaporized successively, again by condenser by steam liquefied, to the Water Sproading of a small amount of oil be contained to water tank respectively, diesel oil containing a small amount of water is recovered to oil storage tank for subsequent use, drilling cuttings drying is outer row afterwards, automatically starts as required or close heating system in using.Oil-based drill cuttings can be dried to that moisture content is less than 0.1%, oil content is less than 0.3% by this drying process and drying device, to reach the object of drilling cuttings minimizing and direct outer row to greatest extent.This treating apparatus can distinguish recovered oil and water by same condenser under classification vacuum condition; eliminate huge fractionating column; apparatus structure is compact; easy and simple to handle; disposal of cuttings efficiency is high; good environmental protection, is suitable for the harmless treatment of oil-based drill cuttings on off-lying sea or region, deep-sea offshore boring island.
Description
Technical field
The present invention relates to oil drilling oil-contained drilling cuttings classification vacuum drying treatment technique and implement this technique treating apparatus used; belong to oil field environment-protection field; can be used for the drying and other treatment of oil-contained drilling cuttings or oily sludge, be particularly suitable for the harmless treatment of oil-based drill cuttings on off-lying sea or region, deep-sea offshore boring island.
Background technology
At present, oil base drilling fluid is widely used in drilling technology, and the oil being used as continuous phase in water-in-oil type drilling fluid is called base oil, and the base oil the most generally used is diesel oil (China commonly uses No. zero diesel oil).In oil-based drilling mud, diesel oil is as the concentration by volume of additive often beyond 50%, and water is evenly dispersed in diesel oil as necessary component, and its water content is generally 10 ~ 60%.The drilling cuttings produced during drilling well may containing the oil more than 7.5%, oil-contained drilling cuttings directly discharges, serious environment pollution will be caused, affect drinking-water water source, affect soil and animal and plant growth, even directly jeopardize human health and life security, therefore a series of relevant laws and regulations restriction use of oil base drilling fluid and the discharge of oil-contained drilling cuttings have been formulated in countries in the world.
Oil-based drill cuttings needs to carry out strict process, can not advanced treating during offshore drilling, often through preliminary treatment, then transports land back and carries out advanced treating again.Drill cutting treatment method conventional at present has drier to take off dry method, hot fractionating process, re-injection method, hot water washing etc.After drier takes off dry process, the comprehensive oil-containing mass fraction of drilling cuttings is higher than 4.8%, can not directly discharge; The drilling cuttings crude quality mark of hot fractionating process process is lower than 1%, but the method equipment is complicated, operating condition is harsh, mostly is the application of professional treatment factory; Landwaste re-injection method is that select suitable stratum to inject, this technical finesse is thorough, but cost is very high, often exceeds the ability to bear of drilling team by drilling cuttings by grinding and sieve and adding appropriate seawater and thickening agent.Hot water washing (also claiming thermal desorption method) displacement efficiency is very high, but occupation area of equipment is large, and water consumption is large, and can cause secondary pollution.
Along with the great development of sea oil drilling and production; the oil pollution problem of ocean also grows in intensity; on ocean platform, drilling cuttings pretreatment often adopts centrifuge to carry out preliminary mummification; screen drum and rotary drum serious wear when this kind of centrigugal swing dryer runs; application life is short, and discharge drilling cuttings mass dryness fraction is not high enough, therefore current in the urgent need to a kind of compact conformation, oil-based drill cuttings harmless treatment device easy and simple to handle; directly can arrange sea after making disposal of cuttings, meet the demand of deep-sea or off-lying sea drilling well.
Summary of the invention
The present invention, mainly for the deficiency of existing drill cutting treatment method, provides a kind of compact conformation, oil-based drill cuttings harmless treatment process easy and simple to handle and implements the treating apparatus of this treatment process.The key issue solved forms classification vacuum at a lower temperature, moisture and oil product are vaporized in different phase, only just water and oil content can not liquefied with condenser, play the effect of separation, avoid harsh high temperature fractionation process and huge fractionating column, disposal of cuttings is thorough, simple to operate, good environmental protection.
Technical scheme of the present invention is achieved in that by auxiliary heating system raising drilling cuttings temperature, and with vacuum pump set, dryer inside is extracted into respectively the vacuum of different stage, classification vacuum is utilized the moisture in oil drilling drilling cuttings and diesel oil to be vaporized successively, again by condenser by steam liquefied, to the Water Sproading of a small amount of oil be contained to water tank respectively, diesel oil containing a small amount of water is recovered to oil storage tank for subsequent use, drilling cuttings drying is outer row afterwards; Reduced the temperature of outer gang drill bits by heat-obtaining system, and keep the temperature of water tank, reclaim heat.
Oil drilling drilling cuttings classification vacuum drying treatment device, it is characterized in that: comprise vacuum desiccator, heating system, temperature pick up, pressure sensor, vacuum pump set, deduster, condenser, water tank, oil storage tank, heat-obtaining system, heating system comprises controller and heater, vacuum desiccator is the closed container that an inside is provided with agitator, vacuum desiccator top has temperature-measuring port, pressure tap and extraction opening, and heat-obtaining system comprises water pump, valve and heat exchanging pipe; The heater cartridge of heating system is in vacuum desiccator, be loaded in vacuum desiccator containing liquid drilling cuttings, the extraction opening of vacuum desiccator is connected with deduster entrance, house outlet is connected with the entrance of vacuum pump set, vacuum pump set outlet is connected with condenser, condenser is connected with water tank and oil storage tank respectively by valve, and heat-obtaining system one end is loaded in vacuum desiccator, and the other end is loaded in water tank; The temperature-measuring port mounting temperature sensor of vacuum desiccator, temperature pick up is connected with the controller of heating system; The pressure tap setting pressure sensor of vacuum desiccator, pressure sensor is connected with the controller of vacuum pump set.
Apply the technique that described treating apparatus carries out oil drilling drilling cuttings classification vacuum drying treatment, it is characterized in that: airtight after in vacuum desiccator, filling is less than the wet drilling bit of 2/3 volume, heating system is opened, and drilling cuttings temperature is higher than 0 DEG C, temperature sensor feedback signal, heating system is closed; If environment temperature is higher than 0 DEG C, then heating system does not start; Vacuum pump set starts, and the vacuum pressure in vacuum desiccator is less than 400Pa, pressure sensor feedback signal, reduce vacuum pump set flow, vacuum pressure is greater than 500Pa, pressure sensor feedback signal, increase vacuum pump set flow, maintaining pressure in vacuum desiccator is 400 ~ 500Pa; From the steam of the band solid impurity that vacuum desiccator extraction opening is extracted out, first remove solid impurity through deduster, enter vacuum pump set again, the steam that vacuum pump set outlet is discharged, liquefy through condenser pressure charging temperature reduction, when in vacuum desiccator, pressure is 400 ~ 500Pa, water tank inlet valve is opened, and condensate liquid enters water tank; When vacuum pump set flow is less than 0.1m
3during/min, then water tank inlet valve cuts out, and first order process terminates; Oil storage tank inlet valve is opened, and second level process starts; Heating system is opened, and in vacuum desiccator, temperature is higher than 150 DEG C, and heating system is closed, and in vacuum desiccator 1, temperature is lower than 100 DEG C, and heating system starts, and keeps temperature in vacuum desiccator to be 100 ~ 150 DEG C; Vacuum pump set starts, pressure sensor feedback signal, and the corresponding adjustment of vacuum pump set flow, ensures that vacuum pressure is 10 ~ 50Pa; Oil storage tank inlet valve is opened, and condensate liquid enters oil storage tank 10; When vacuum pump set 5 flow is less than 0.1m
3during/min, vacuum pump set is closed, and second level process terminates; Heat-obtaining system is opened, and in vacuum desiccator, temperature reduces, and in vacuum desiccator, temperature is lower than 50 DEG C, heat-obtaining system closing, vacuum desiccator discharging.
Vacuum desiccator is a closed container, and inside is provided with an agitator and is used for stirring drilling cuttings, prevents drilling cuttings from luming, and accelerates dry run.Vacuum desiccator top has temperature-measuring port, pressure tap and extraction opening, temperature-measuring port mounting temperature sensor, and pressure tap setting pressure sensor, extraction opening is connected with vacuum pump set entrance.The heater of heating system can be steam-heating pipe, also can be microwave applicator.
Vacuum pump set can be vacuum pump series connection more than two-stage or two-stage, to reach required vacuum level requirements.
Deduster, with removing the granule foreign carried in steam, can choose sack cleaner, or the strainer of band filter core.
Heat-obtaining system comprises water pump, valve and heat exchanging pipe, and one end loads in vacuum desiccator, and one end loads in water tank, both reduce the temperature of outer gang drill bits, reclaimed waste heat again, reclaim heat storage in water tank, the temperature of water storage can be kept, and improve the initial temperature of water for heating.
Condenser adopts water at low temperature as cooling medium, heat when condensing with recovered steam, and owing to adopting vacuum fractionation dry, oil and water share a condenser, and by opening corresponding valve, Jiang Shui and oil are stored in water tank and oil storage tank respectively.
Compared with prior art, the invention has the advantages that: the oil drilling drilling cuttings classification vacuum drying treatment technique provided and treating apparatus simple to operate, apparatus structure is compact, eliminate huge fractionating column, disposal of cuttings efficiency is high, good environmental protection, can be dried to oil-based drill cuttings that moisture content is less than 0.1%, oil content is less than 0.3%, to reach the object of drilling cuttings minimizing and direct outer row to greatest extent.
Come to illustrate in detail further technological process of the present invention and treating apparatus formation below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is oil drilling drilling cuttings classification vacuum drying treatment technique and treating apparatus schematic diagram.
Wherein 1 is vacuum desiccator, and 2 is heating systems, and 3 is temperature pick ups, 4 is pressure sensors, and 5 is vacuum pump set, and 6 is dedusters, 7 is condensers, 8 is oil storage tank inlet valves, and 9 is water tank inlet valves, and 10 is oil storage tanks, 11 is water tanks, 12 heat-obtaining systems, 1.1 is vacuum desiccator extraction openings, and 1.2 is pressure tap, 1.3 is temperature-measuring ports, 2.1 is heaters, and 2.2 is heating controllers, and 5.1 is vacuum pump set entrances, 5.2 is vacuum pump set outlets, 5.3 is vacuum pump set controllers, and 6.1 is deduster material inlets, 6.2 deduster gas outlets.
Detailed description of the invention
Embodiment is as follows:
With reference to Fig. 1, temperature-measuring port 1.3 mounting temperature sensor 3 of vacuum desiccator 1, temperature pick up 3 is connected with heating controller 2.2, temperature pick up 3 signal feedback heating system 2; The pressure tap 1.2 setting pressure sensor 4 of vacuum desiccator 1, pressure sensor 4 is connected with vacuum pump set controller 5.3, pressure sensor 4 signal feedback vacuum pump set 5; The heater 2.1 of heating system 2 is loaded in vacuum desiccator 1, vacuum desiccator extraction opening 1.1 is connected with the deduster material inlet 6.1 of deduster 6, deduster gas outlet 6.2 is connected with vacuum pump set entrance 5.1, vacuum pump set outlet 5.2 is connected with condenser 7, condenser 7 is connected with oil storage tank 10 and water tank 11 with water tank inlet valve 9 respectively by oil storage tank inlet valve 8, heat-obtaining system 12 one end is loaded in vacuum desiccator 1, and the other end is loaded in water tank 11.
This embodiment is for the wet drilling bit containing water and diesel oil, bavin main body of oil is the n-alkane of C16 to C20, monocyclic naphthenes and mononuclear aromatics, at 60 DEG C, the saturated vapour pressure of n-eicosane is less than 0.1Pa, hexadecane saturated vapor pressure is about 7Pa, saturated vapour pressure at n-eicosane 100 DEG C is less than 19Pa, the saturated vapour pressure of n-eicosane at 150 DEG C is 100Pa, and at 0 DEG C, water saturation vapour pressure is greater than 600Pa.
Airtight after in vacuum desiccator 1, filling is less than the wet drilling bit of 2/3 volume, heating system 2 is opened, drilling cuttings temperature higher than 0 DEG C, temperature pick up 3 feedback signal, heating system 2 is closed; If environment temperature is higher than 0 DEG C, then heating system 2 does not start.Vacuum pump set 5 starts, and the vacuum pressure in vacuum desiccator 1 is 400Pa, pressure sensor 4 feedback signal, reduce vacuum pump set 5 flow, vacuum pressure is greater than 500Pa, pressure sensor 4 feedback signal, increase vacuum pump set 5 flow, maintaining pressure in vacuum desiccator 1 is 400 ~ 500Pa.From the steam of the band solid impurity that vacuum desiccator extraction opening 1.1 is extracted out, first remove solid impurity through deduster 6, enter vacuum pump set 5 again, the steam that vacuum pump set outlet 5.2 is discharged, liquefy through condenser 7 pressure charging temperature reduction, when in vacuum desiccator 1, pressure is 400 ~ 500Pa, water tank inlet valve 9 is opened, and condensate liquid enters water tank 11.When vacuum pump set 5 flow is less than 0.1m
3during/min, then water tank inlet valve 9 cuts out, and first order process terminates.Oil storage tank inlet valve 8 is opened, and second level process starts.Heating system 2 is opened, and in vacuum desiccator 1, temperature is higher than 150 DEG C, and heating system 2 is closed, and in vacuum desiccator 1, temperature is lower than 100 DEG C, and heating system 2 starts, and keeps temperature in vacuum desiccator 1 to be 100 ~ 150 DEG C.Vacuum pump set 5 starts, pressure sensor 4 feedback signal, the corresponding adjustment of vacuum pump set 5 flow, ensures that vacuum pressure is 10 ~ 50Pa.Oil storage tank inlet valve 8 is opened, and condensate liquid enters oil storage tank 10.When vacuum pump set 5 flow is less than 0.1m
3during/min, vacuum pump set 5 is closed, and second level process terminates.Heat-obtaining system 12 is opened, and in vacuum desiccator 1, temperature reduces, and in vacuum desiccator 1, temperature is lower than 50 DEG C, and heat-obtaining system 12 is closed, vacuum desiccator 1 discharging.Intermittently operated like this, carries out multiple work period, and disposal of cuttings amount is greater than 10m
3/ h, meets the requirement that drilling cuttings processes online completely.
The above is the conventional embodiment of this invention, and according to the difference of material handling character, any those skilled in the art according to the technology contents of above-mentioned announcement, can set different operating temperatures and operation vacuum level, realize other embodiments of equivalence.
Claims (3)
1. oil drilling drilling cuttings classification vacuum drying treatment device, it is characterized in that: comprise vacuum desiccator, heating system, temperature pick up, pressure sensor, vacuum pump set, deduster, condenser, water tank, oil storage tank, heat-obtaining system, heating system comprises controller and heater, vacuum desiccator is the closed container that an inside is provided with agitator, vacuum desiccator top has temperature-measuring port, pressure tap and extraction opening, and heat-obtaining system comprises water pump, valve and heat exchanging pipe;
The heater cartridge of heating system is in vacuum desiccator, be loaded in vacuum desiccator containing liquid drilling cuttings, the extraction opening of vacuum desiccator is connected with deduster entrance, house outlet is connected with the entrance of vacuum pump set, vacuum pump set outlet is connected with condenser, condenser is connected with water tank and oil storage tank respectively by valve, and heat-obtaining system one end is loaded in vacuum desiccator, and the other end is loaded in water tank; The temperature-measuring port mounting temperature sensor of vacuum desiccator, temperature pick up is connected with the controller of heating system; The pressure tap setting pressure sensor of vacuum desiccator, pressure sensor is connected with the controller of vacuum pump set.
2. treating apparatus as claimed in claim 1, is characterized in that: the heater of described heating system is steam-heating pipe or microwave applicator.
3. apply the technique that treating apparatus as claimed in claim 1 carries out oil drilling drilling cuttings classification vacuum drying treatment, it is characterized in that:
Airtight after filling is less than the wet drilling bit of 2/3 volume in vacuum desiccator, heating system is opened, drilling cuttings temperature higher than 0 DEG C, temperature sensor feedback signal, heating system is closed; If environment temperature is higher than 0 DEG C, then heating system does not start;
Vacuum pump set starts, and the vacuum pressure in vacuum desiccator is less than 400Pa, pressure sensor feedback signal, reduce vacuum pump set flow, vacuum pressure is greater than 500Pa, pressure sensor feedback signal, increase vacuum pump set flow, maintaining pressure in vacuum desiccator is 400 ~ 500Pa; From the steam of the band solid impurity that vacuum desiccator extraction opening is extracted out, first remove solid impurity through deduster, enter vacuum pump set again, the steam that vacuum pump set outlet is discharged, liquefy through condenser pressure charging temperature reduction, when in vacuum desiccator, pressure is 400 ~ 500Pa, water tank inlet valve is opened, and condensate liquid enters water tank; When vacuum pump set flow is less than 0.1m
3during/min, then water tank inlet valve cuts out, and first order process terminates;
Oil storage tank inlet valve is opened, and second level process starts; Heating system is opened, and in vacuum desiccator, temperature is higher than 150 DEG C, and heating system is closed, and vacuum desiccator (1) interior temperature is lower than 100 DEG C, and heating system starts, and keeps temperature in vacuum desiccator to be 100 ~ 150 DEG C; Vacuum pump set starts, pressure sensor feedback signal, and the corresponding adjustment of vacuum pump set flow, ensures that vacuum pressure is 10 ~ 50Pa; Oil storage tank inlet valve is opened, and condensate liquid enters oil storage tank (10); When vacuum pump set (5) flow is less than 0.1m
3during/min, vacuum pump set is closed, and second level process terminates; Heat-obtaining system is opened, and in vacuum desiccator, temperature reduces, and in vacuum desiccator, temperature is lower than 50 DEG C, heat-obtaining system closing, vacuum desiccator discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310057482.XA CN103132935B (en) | 2013-02-23 | 2013-02-23 | Oil drilling drilling cuttings classification vacuum drying treatment technique and treating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310057482.XA CN103132935B (en) | 2013-02-23 | 2013-02-23 | Oil drilling drilling cuttings classification vacuum drying treatment technique and treating apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103132935A CN103132935A (en) | 2013-06-05 |
| CN103132935B true CN103132935B (en) | 2015-07-29 |
Family
ID=48493320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310057482.XA Expired - Fee Related CN103132935B (en) | 2013-02-23 | 2013-02-23 | Oil drilling drilling cuttings classification vacuum drying treatment technique and treating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103132935B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO342321B1 (en) * | 2013-04-19 | 2018-05-07 | Trond Melhus | METHOD AND SYSTEM FOR SEPARATION OF OIL AND WATER FROM WATER DRILL |
| CN106219938B (en) * | 2016-08-24 | 2019-05-03 | 李天舒 | A kind of processing method of greasy filth or sludge |
| CN110201984B (en) * | 2019-06-24 | 2024-01-26 | 中国石油天然气集团有限公司 | Microwave deoiling recovery device for oil-containing article and use method thereof |
| CN111577176A (en) * | 2020-06-08 | 2020-08-25 | 浙江铂沣环保科技有限公司 | Offshore oil and gas platform oil-based drilling fluid drilling cuttings while-drilling treatment system |
| CN113404451B (en) * | 2021-02-04 | 2022-08-02 | 中国石油大学(北京) | Method for rock debris reinjection layer selection based on logging information |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4747961A (en) * | 1986-12-19 | 1988-05-31 | Atlantic Richfield Company | Method and system for treating drill cutting slurries and the like |
| CN101506464A (en) * | 2006-10-04 | 2009-08-12 | 国民油井华高有限合伙公司 | Method and apparatus for preparing drill cuttings for reinjection into a well |
| CN102187051A (en) * | 2008-10-29 | 2011-09-14 | 丹尼尔·盖·波默洛 | System and method for drying drill cuttings |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8118172B2 (en) * | 2005-11-16 | 2012-02-21 | National Oilwell Varco L.P. | Shale shakers with cartridge screen assemblies |
-
2013
- 2013-02-23 CN CN201310057482.XA patent/CN103132935B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4747961A (en) * | 1986-12-19 | 1988-05-31 | Atlantic Richfield Company | Method and system for treating drill cutting slurries and the like |
| CN101506464A (en) * | 2006-10-04 | 2009-08-12 | 国民油井华高有限合伙公司 | Method and apparatus for preparing drill cuttings for reinjection into a well |
| CN102187051A (en) * | 2008-10-29 | 2011-09-14 | 丹尼尔·盖·波默洛 | System and method for drying drill cuttings |
Non-Patent Citations (2)
| Title |
|---|
| 《油田钻井钻屑在线干化技术浅析》;张春雪等;《石油矿场机械》;20110925;第40卷(第9期);第11页第1栏倒数第1段至第12页第1栏倒数第3段 * |
| 易绍金等.《海上钻井含油钻屑处理技术》.《中国海上油气(工程)》.2001,第13卷(第6期),第53页倒数第1段至第54页第3段. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103132935A (en) | 2013-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103132935B (en) | Oil drilling drilling cuttings classification vacuum drying treatment technique and treating apparatus | |
| CN204571890U (en) | Discarded oil-base mud is with brill treating apparatus | |
| NO165576B (en) | PROCEDURE FOR THE REMOVAL OF ORGANIC POLLUTIONS FROM PARTICULAR SOLIDS AND APPARATUS FOR IMPLEMENTATION OF THE PROCEDURE. | |
| US10173146B2 (en) | Method of treating a material | |
| CN110395857A (en) | The method and apparatus for handling oil-containing hydrous matter | |
| CN104358535A (en) | Agent-free treatment and recovery process for shale gas development drilling oil base drilling cuttings | |
| CN103396830B (en) | Device and method for dehydrating heavy sump oil | |
| CN207271789U (en) | A kind of oil-containing solid waste microwave thermal desorbs recycling treatment system | |
| CN101121571B (en) | Method for treating well drilling waste liquid by diesel engine tail gas | |
| CN105921489A (en) | Animal harmless treatment equipment and method | |
| CN108675590A (en) | A kind of periodic greasy filth pyrolysis treatment device and its application method | |
| FI75360B (en) | SAETT ATT AVVATTNA EN KAKA AV BIOMASS. | |
| CN205012945U (en) | Abandoned oil basement rock drill chip processing apparatus | |
| CN206553370U (en) | A kind of sludge combined treatment device | |
| CN204402409U (en) | A kind of drilling well oil-based drill cuttings cleaning device | |
| CN101269380B (en) | Method for removing oil-containing drill cuttings and oil component in oil polluted soil | |
| CN106915891A (en) | A kind of oil plant oily sludge is innoxious and processing method of resource | |
| CN205974231U (en) | Oil plant contains oil sludge mummification and tail gas treatment integration processing system | |
| CN205762913U (en) | Animal innocent treatment equipment | |
| CN213327292U (en) | Oil base drill chip processing apparatus | |
| CN204369814U (en) | Dewatering and oil removing device for oil field | |
| CN205035239U (en) | Board -like processing oiliness sludge drying vaporization system | |
| CN115044387B (en) | Oil-based rock debris treatment system and process | |
| CN218642684U (en) | Oil-based rock debris extraction and oil extraction system | |
| CN219098952U (en) | Mud does not fall to ground pressure filtration equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20160223 |