CN107120078A - Oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment - Google Patents
Oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment Download PDFInfo
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- CN107120078A CN107120078A CN201710421938.4A CN201710421938A CN107120078A CN 107120078 A CN107120078 A CN 107120078A CN 201710421938 A CN201710421938 A CN 201710421938A CN 107120078 A CN107120078 A CN 107120078A
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- oil
- working chamber
- drilling cuttings
- desorption
- microwave
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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
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- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The present invention discloses a kind of oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment, it includes raw material conveying device, processing unit, oil gas collecting device and cutting catcher box, the right-hand member of raw material conveying device connects one end of processing unit, the other end connection oil gas collecting device and cutting catcher box of processing unit, processing unit includes desorption working chamber, cold water absorber, reflection-absorption device and microwave launcher, reflection-absorption device is connected with desorption working chamber, cold water absorber is located at the charging aperture of desorption working chamber, microwave launcher is installed on heating desorption working chamber, oil gas collecting device includes condenser, aspiration pump and fluid reservoir, it is desorbed working chamber and is provided with gas outlet and discharging opening.The present invention can make the oil content of oil-contained drilling cuttings be less than 1%, heating is quick, handling process is short, process cycle is short, safety non-pollution, with explosion prevention function, efficient energy-saving.
Description
Technical field
The present invention relates to technical field, and in particular to a kind of oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment.
Background technology
China attaches great importance to the protection work of marine environment always in recent years, and from nineteen ninety September, China promulgates in succession
Multi-section relevant regulations.By constantly improving, China promulgated on May 1st, 2009《Offshore oil exploration and exploitation is arranged
Put limit value》, the oil content of wherein clear stipulaties emission should be less than 1%.But existing processing scheme is difficult to reach this effect.Its
Secondary, relevant laws and regulations have formulated different content of beary metal also directed to different heavy metal elements.In summary as can be seen that drilling cuttings
In oil content in indices be in very important status, prevent oily pollution be various countries common recognition, can effectively handle
Oil component in drilling cuttings is directly connected to the safety dumping problem of drilling cuttings.Contain substantial amounts of oil component in discarded drilling cuttings, if obtaining not
High risks will be caused to environment, to dealing carefully with while containing substantial amounts of resource again, if effective economy can be obtained
Processing, will form considerable environmental benefit and economic benefit.
The method of current filed application or pilot test processing oil-contained drilling cuttings mainly includes drying-centrifugation, normal temperature
Learn the technologies such as desorption, microbiological treatment and thermal desorption.The main equipment of drying-centrifugal separation technology is vertical drier and sleeping spiral shell
Centrifuge.Vertical drier utilizes 0.3 mm screen cloth, and bulky grain is isolated in inside screen cloth, by blade by solid in screen cloth
Scrape, form the low dry slag of oil content, little particle and drilling fluid are passed through from screen cloth, then after centrifugation, quality is preferable
Drilling fluid reclamation, the more solid phase containing dust and little particle enters the further separation of solid and liquid processing of centrifuge after collecting.Drier
The dry slag part about of the total volume 50% of discharge, reclaims drilling fluid and accounts for 10% ~ 15%, VERTI-G type driers, maximum
Treating capacity can reach 40 t/h, is applied successfully more than 200 mouthfuls of wells all over the world at present.Drier is mutually tied with horizontal screw centrifuge
Close, drilling wastes oil content can be down to 3% ~ 5%, reclaim mud to greatest extent, but after drier processing residue and
High oil-containing greasy filth is still danger wastes, it is impossible to handle.And the chemical desorption technology of normal temperature typically utilizes chemical agent to oil-containing
Drilling cuttings is handled, and oil is separated with drilling cuttings, recycles the means such as heating, is reclaimed desorption medicament and is recycled.Compare at present
Ripe is LRET technologies, separation of solid and liquid after being leached to oil-containing drilling fluid after drying-centrifugal treating, the mud in oil-contained drilling cuttings
Slurry enters in solvent, then by distilling cooling way, recycling design is recycled.The solid phase of separation carries out landfill disposal or preparation
The resource products such as baking-free ceramicite.The oil base drilling fluid performance of recovery meets drilling well requirement, and the residue oil that control is finally discharged
Content is less than 1%.Although the recovery of oil-base mud can be realized, there is also oil-contained drilling cuttings depth solvent desorbing after centrifugation
High, difficult with processing application the is bored shortcoming of handling process length, cost.External many companies have begun to control using biologic treating technique
Manage oil-contained drilling cuttings and landwaste, such as shell, Chevron, Halliburton Company, while during part oil field environment-protection at home is constructed
Application experiment is carried out.Li Xueqing etc. is using the technology to the abundant eastern 081 well white oil bag aqueous drilling fluid of Xinjiang Oilfield and Soviet Union 10-
Drilling cuttings in the full oil base drilling fluid of 32-45CH wells is handled, and is achieved good effect, is passed through centrifuge dripping and biology
After method processing, the oil content of drilling cuttings has been down to 1.17%.Microorganism has to the treatment technology of oil-contained drilling cuttings reclaims mud, technique
Flow is short, subsequent treatment cost is relatively low a little, but oily resource is unrecovered in its drying slag；Biodegradable technique microbial inoculum sieve
Choosing preserves difficult, long processing period（30~60d）, high to climate requirements, floor space is big.Thermal desorption technology, refers to add in anoxybiotic
It will be reclaimed under heat condition after most liquid phase separations condensation in landwaste, so as to realize the purpose that drilling cuttings is separated with oil.Desorption
Stove is different according to heating medium, and mode of heating has fuel heating, electrical heating and sledge mill Thermal desorption technology, is heated using fuel
Thermal desorption technology can directly utilize fuel（Such as diesel oil, natural gas, associated gas）Heating, or steam is heated using fuel,
Steam heating analyzing device is recycled, using open firing, security risk is high；Easy coking, causes to heat uneven, oil-containing of slagging tap
Rate is unstable.Electromagnetic heating furnace is transformed by drying plant, explosion-proof inconsiderate complete；The snakelike arrangement of electromagnetic heating furnace, the easy heap of material
Product is blocked；Fixed gas processing and emission problem are not taken into full account.Microwave is heated, and this is a kind of brand-new heating means, by micro-
Ripple is penetrated inside material, and the interphase interaction with the polar molecule of material is converted into heat energy, makes material overall while obtaining heat
And heat up.Microwave heating is a kind of " Cooling and Heat Source ", and it is acted by electromagnetic energy with object, and heat is formed by the conversion of energy
Effect.Microwave heating method changes heat energy migration gesture and the migration potential gradient direction of conventional heating approach, forms the micro- of uniqueness
Wave heating mechanism.During desorption by microwave, thermograde, heat transfer direction are consistent with the direction of vapour pressure migration agent, so that
The water translocation condition of drying process is greatly improved, material is integrally dried from inside to outside, heated heating is hooked unanimously, is overcome
The problems such as being deformed caused by the heated inequality of material, and effect is substantially better than conventional drying.But, microwave is directed to outside Current Domestic
The research of method processing oil-contained drilling cuttings technology is analyzed without regularization, and drying mechanism is directly applied mechanically more and then attempts to realize industrialization
Past industrialization is also caused to attempt to end in failure using this.Also, in the industrial applications of microwave treatment oil-contained drilling cuttings,
Mechanism of various countries is not also further analyzed for waste gas, waste liquid, waste residue problem, and the safety anti-explosive of course of reaction is not asked
Topic proposes solution.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of oil-contained drilling cuttings microwave thermal desorption continuous processing
Device, can make that the oil content of oil-contained drilling cuttings is less than 1%, heating is quick, handling process is short, process cycle is short, safety non-pollution,
With explosion prevention function, efficient energy-saving.
The purpose of the present invention is achieved through the following technical solutions：
Oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment, it include raw material conveying device, processing unit, oil gas collecting device and
Cutting catcher box, the right-hand member of the raw material conveying device connects one end of processing unit, the other end connection of the processing unit
Oil gas collecting device and cutting catcher box, processing unit include desorption working chamber, cold water absorber, reflection-absorption device and microwave hair
Injection device, the reflection-absorption device is connected with desorption working chamber, and the cold water absorber is located at the charging aperture of desorption working chamber, institute
State microwave launcher to be installed on heating desorption working chamber, the oil gas collecting device includes condenser, aspiration pump and liquid storage
Tank, the desorption working chamber is provided with gas outlet and discharging opening, and the gas outlet is located at the right side of microwave launcher, gas outlet
Connect, the condenser is connected with fluid reservoir, the discharging opening is connected with cutting catcher box, set in desorption working chamber with condenser
There are multiple application members.
Further, it also includes nitrogen supply (NS) pipeline and controller, is set between desorption working chamber and nitrogen supply (NS) pipeline
There is flow control valve, the flow control valve is electrically connected with the controller.
Further, it also includes alarm, and the alarm is electrically connected with the controller, and is also set in the desorption working chamber
There is the supervising device for detection flows and oxygen concentration, the supervising device includes flowmeter and oxygen densitometer, the control
Device processed is electrically connected with supervising device, and flow control valve is provided between supervising device and nitrogen supply (NS) pipeline.
Described processing unit also includes conveyer belt and the transmission wheel cooperated, and the top of the conveyer belt is located at desorption
In working chamber, direction of transfer of the application member along conveyer belt is uniformly arranged and positioned at the top of conveyer belt.
Described conveyer belt is provided with temperature sensor and humidity sensor, and the temperature sensor and humidity sensor are equal
It is electrically connected with the controller.
Described raw material conveying device includes glass conveyer belt and belt wheel, and the belt wheel is connected with glass conveyer belt.
Described cold water absorber at least two, two cold water absorbers are respectively positioned at the bottom of charging aperture and discharging opening
Bottom.
Described microwave launcher includes first transmitter and second transmitter, the gas outlet at least two, one
Individual gas outlet is located at the right side of first transmitter and positioned at the left side of second transmitter, and another gas outlet is located at the second transmitting
The right side of device.
Described microwave launcher is provided with magnetic control circulator and automatically adjusts device.
The beneficial effects of the invention are as follows：Heated using microwave, object molecule, thing are directly acted on by microwave penetration object
Heat inside and outside, it is not necessary to heat transfer, can complete in a short time whole heating and de- liquid stage simultaneously, heating is rapid, uniform,
It is time-consuming short；The maximum temperature point of heating is in the centre of material, and penetrability is good；Do not need high-temperature medium to conduct heat, remove from
The energy of high-temperature medium consumption, efficient energy-saving；Ensure the temperature difference of object, it is to avoid hot-spot, with self-balancing ability；Thermal inertia
Small, it is easy to control, the electric energy energy is thought in microwave heating, and environment is not polluted.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is application member structural representation；
In figure, 1- raw material conveying devices, 2- processing units, 3- cutting catcher boxes, 4- desorption working chambers, 5- cold water absorbers, 6-
Reflection-absorption device, 7- condensers, 8- fluid reservoirs, 9- aspiration pumps, 10- gas outlets, 11- discharging openings, 12- application members, 13- nitrogen is supplied
Answer pipeline, 14- flow control valves, 15- supervising devices, 16- belt wheels, 17- glass conveyer belts, 18- transmission wheels, 19- conveyer belts,
20- first transmitters, 21- second transmitters, 22- magnetic control circulators, 23- automatically adjusts device, 24- microwave launchers.
Embodiment
Technical scheme is described in further detail with reference to specific embodiment, but protection scope of the present invention is not
It is confined to as described below.
Embodiment 1
As shown in Figure 1, 2, oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment, it include raw material conveying device 1, processing unit 2,
Oil gas collecting device and cutting catcher box 3, the right-hand member of the raw material conveying device 1 connect one end of processing unit 2, the processing
The other end connection oil gas collecting device and cutting catcher box 3 of device 2, processing unit 2 include desorption working chamber 4, cold water and absorbed
Device 5, reflection-absorption device 6 and microwave launcher 24.
The energy microwave reflection of reflection-absorption device 6, makes magnetic field energy be uniformly dispersed in cavity, prevents microwave to outward leakage.It is described anti-
Penetrate absorber 6 to connect with desorption working chamber 4, the cold water absorber 5 is located at the charging aperture and discharging opening 11 of desorption working chamber 4,
Because can add water when drilling cuttings raw material is added, excess moisture can penetrate into the desorption bottom of working chamber 4 by cold water absorber 5
Absorb, unnecessary moisture can reduce energy consumption after being absorbed.The microwave launcher 24 is installed on heating desorption working chamber 4
On, the oil gas collecting device includes condenser 7, aspiration pump 9 and fluid reservoir 8, and the desorption working chamber 4 is provided with gas outlet 10
With discharging opening 11, the gas outlet 10 is located at the right side of microwave launcher 24, and gas outlet 10 is connected with condenser 7, described cold
Condenser 7 is connected with fluid reservoir 8, and the discharging opening 11 is connected with cutting catcher box 3, and multiple application members are provided with desorption working chamber 4
12, application member 12 is pierced provided with multiple ribs, drilling cuttings can be stirred in cavity, shakeout, and improves the efficiency of heating surface.
It also includes nitrogen supply (NS) pipeline 13, and nitrogen is passed through to the two ends of desorption working chamber 4, respectively from middle two outlets
Mouth 10 is discharged into condensation cycle with vapor.It also includes controller, and the flow control valve 14 is electrically connected with the controller.It
Also include being additionally provided with the supervising device 15 for detection flows and oxygen concentration, the prison in alarm, the desorption working chamber 4
Controlling device 15 includes flowmeter and oxygen densitometer, and the controller is electrically connected with supervising device 15, the alarm and control
Device is electrically connected.Oil absorption heat energy itself is few, and oil is to be taken out of by the evaporation of water from gas outlet 10, is monitored in real time by supervising device 15
And the air ambient in control chamber body is not up to explosion limit.Herein by controller, once it is too high to detect oxygen concentration, at once
Automatically interrupt whole heating process and alarm, can be just continuing with after oxygen concentration recovers stabilization, prevent blast.The transmission
Band 19 is provided with temperature sensor and humidity sensor, and the temperature sensor and humidity sensor are electrically connected with the controller,
For monitoring temperature and humidity.The cold water absorber 5 at least two, two cold water absorbers 5 are respectively positioned at charging aperture
Bottom and the bottom of discharging opening 11.The raw material conveying device 1 include glass conveyer belt 1917 and belt wheel 16, the belt wheel 16 with
Glass conveyer belt 1917 is connected；The processing unit 2 also includes conveyer belt 19 and the transmission wheel 18 cooperated, described to pass
Send band 19 top be located at desorption work described in microwave launcher 24 include first transmitter 20 and second transmitter 21, it is described go out
Gas port 10 at least two a, gas outlet 10 is located at the right side of first transmitter 20 and positioned at the left side of second transmitter 21,
Another gas outlet 10 is located at the right side of second transmitter 21, and the microwave launcher 24 is provided with magnetic control circulator 22 and certainly
Dynamic adjuster 23.Magnetic control circulator is used to prevent the ripple of reflection from reentering magnetron, damages magnetron, automatically adjusts device 23 and use
To adjust impedance matching, reduction reflection.Direction of transfer of the application member 12 along conveyer belt 19 is uniformly arranged and positioned at conveyer belt 19
Top.
Wherein preferred, first transmitter 20 chooses 130kw microwave emitter, and second transmitter 21 chooses 260kw's
Microwave emitter, it is progressive, after the microwave heating that first transmitter 20 is sent, big gauging and water have been evaporated, this
When oil content 1% or so, increasing power after the microwave heating that second transmitter 21 is sent, it is ensured that drilling cuttings comes out
Containing ratio is less than 1% afterwards.
Water is first added into oil-contained drilling cuttings, is sent to by conveying device in desorption working chamber 4, cold water absorber 5 absorbs
Unnecessary moisture, is transported to the right oil-contained drilling cuttings by conveyer belt 19, is heated by 130KW microwave emitters, and application member 12 is stirred
Mix, the water in drilling cuttings and a large amount of evaporations of oil, enter condenser 7 in gas outlet 10, You Heshui is separated into by condenser 7, deposited
Storage, now the oil content of oil-contained drilling cuttings is about 1%, and conveyer belt 19 continues to the right to transport oil-contained drilling cuttings, is sent out by 260KW microwaves
Emitter is heated, and application member 12 is stirred, the water in drilling cuttings and a large amount of evaporations of oil, enters condenser 7 in gas outlet 10, by condenser 7
You Heshui is separated into, is stored, now the oil content of oil-contained drilling cuttings is less than 1%, enters cutting catcher box 3 through discharging opening 11, reaches
To discharge standard.
Described above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and environment, and can be at this
In the text contemplated scope, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art are entered
Capable change and change does not depart from the spirit and scope of the present invention, then all should appended claims of the present invention protection domain
It is interior.
Claims (9)
1. oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment, it is characterised in that：It include raw material conveying device, processing unit,
Oil gas collecting device and cutting catcher box, the right-hand member of the raw material conveying device connect one end of processing unit, the processing dress
The other end connection oil gas collecting device and cutting catcher box put, processing unit include desorption working chamber, cold water absorber, reflection
Absorber and microwave launcher, the reflection-absorption device are connected with desorption working chamber, and the cold water absorber is located at desorption work
Make the charging aperture of chamber, the microwave launcher is installed on heating desorption working chamber, and the oil gas collecting device includes condensation
Device, aspiration pump and fluid reservoir, the desorption working chamber are provided with gas outlet and discharging opening, and the gas outlet is filled positioned at Microwave emission
The right side put, gas outlet is connected with condenser, and the condenser is connected with fluid reservoir, and the discharging opening connects with cutting catcher box
It is logical, it is provided with multiple application members in desorption working chamber.
2. oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment according to claim 1, it is characterised in that：It also includes nitrogen
Gas supply line and controller, are provided with flow control valve, the flow control valve between desorption working chamber and nitrogen supply (NS) pipeline
It is electrically connected with the controller.
3. oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment according to claim 2, it is characterised in that：It also includes report
Alert device, the alarm is electrically connected with the controller, and is additionally provided with the desorption working chamber for detection flows and oxygen concentration
Supervising device, the supervising device includes flowmeter and oxygen densitometer, and the controller is electrically connected with supervising device, monitoring dress
Put and flow control valve is provided between nitrogen supply (NS) pipeline.
4. oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment according to claim 2, it is characterised in that：The processing dress
Conveyer belt and the transmission wheel for also including cooperating are put, the top of the conveyer belt is located in desorption working chamber, the application member
It is uniformly arranged along the direction of transfer of conveyer belt and positioned at the top of conveyer belt.
5. oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment according to claim 4, it is characterised in that：The conveyer belt
Temperature sensor and humidity sensor are provided with, the temperature sensor and humidity sensor are electrically connected with the controller.
6. oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment according to claim 1, it is characterised in that：The raw material is defeated
Device is sent to include glass conveyer belt and belt wheel, the belt wheel is connected with glass conveyer belt.
7. oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment according to claim 1, it is characterised in that：The cold water is inhaled
Device at least two is received, two cold water absorbers are respectively positioned at the bottom of charging aperture and the bottom of discharging opening.
8. oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment according to claim 1, it is characterised in that：The microwave hair
Injection device includes first transmitter and second transmitter, and the gas outlet at least two a, gas outlet is located at the first transmitting
The right side of device and the left side for being located at second transmitter, another gas outlet is located at the right side of second transmitter.
9. the oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment according to any one of claim 1 ~ 8, it is characterised in that：Institute
Microwave launcher is stated provided with magnetic control circulator and device is automatically adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421938.4A CN107120078A (en) | 2017-06-07 | 2017-06-07 | Oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710421938.4A CN107120078A (en) | 2017-06-07 | 2017-06-07 | Oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107120078A true CN107120078A (en) | 2017-09-01 |
Family
ID=59730027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710421938.4A Pending CN107120078A (en) | 2017-06-07 | 2017-06-07 | Oil-contained drilling cuttings microwave thermal desorption apparatus for continuous treatment |
Country Status (1)
| Country | Link |
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| CN (1) | CN107120078A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343391A (en) * | 2018-04-19 | 2018-07-31 | 西南石油大学 | A kind of disposal of cuttings thermal release structure of drum-type |
| CN110743905A (en) * | 2019-11-22 | 2020-02-04 | 江苏国瑞特环保工程技术有限公司 | Pyrolysis oil-containing solid waste treatment method and system |
| CN111364930A (en) * | 2020-03-23 | 2020-07-03 | 中石化江汉石油工程有限公司 | Oil-based drilling cutting treatment method |
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| CN105672918A (en) * | 2016-01-05 | 2016-06-15 | 西南石油大学 | Oil-containing drilling cutting microwave-processing technology |
| US20160340589A1 (en) * | 2015-05-22 | 2016-11-24 | Chengdu En-Shain Technology Incorporation | Microwave Processing Device |
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| US20030057205A1 (en) * | 2001-09-26 | 2003-03-27 | Tomio Minobe | Microwave continuous heating apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343391A (en) * | 2018-04-19 | 2018-07-31 | 西南石油大学 | A kind of disposal of cuttings thermal release structure of drum-type |
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| CN111364930A (en) * | 2020-03-23 | 2020-07-03 | 中石化江汉石油工程有限公司 | Oil-based drilling cutting treatment method |
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Application publication date: 20170901 |
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