CN108238694A - A kind of drilling fluid depth piece-rate system and separation method - Google Patents
A kind of drilling fluid depth piece-rate system and separation method Download PDFInfo
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- CN108238694A CN108238694A CN201611203315.1A CN201611203315A CN108238694A CN 108238694 A CN108238694 A CN 108238694A CN 201611203315 A CN201611203315 A CN 201611203315A CN 108238694 A CN108238694 A CN 108238694A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
- C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
Abstract
The present invention relates to a kind of drilling fluid depth piece-rate system and separation method, wherein system includes drilling well liquid storage tank, cycle water pot, pipe-line mixer, ultrasonic emulsion breaking equipment, horizontal spiral centrifuge, horizontal spiral conveying equipment, differential separator, sandfiltration pot and carbon filter tank.Separation method is：The water recycled in water pot is sent into pipe-line mixer, water is adjusted and reaches rated discharge；It opens horizontal spiral centrifuge and reaches rated speed；Drilling fluid is gradually mixed by drilling well liquid storage tank to pipe-line mixer from less to more and into horizontal spiral centrifuge；Open ultrasonic emulsion breaking equipment；Solid phase after separation is sent into differential separator after being dried by horizontal spiral conveying equipment, into being about to solid phase and liquid phase separation.The present invention is simple with equipment, and random process is carried out to drilling fluid, adaptable；Chemicals dosage is few, does not cause secondary pollution；Isolate is reusable, does not cause to waste；Separative efficiency is high, and low energy consumption, is installed and used suitable for various places.
Description
Technical field
The present invention relates to a kind of system support equipment of drilling fluid depth separation, more particularly to a kind of water-based drillings of stabilization
Liquid dilution, demulsification take off surely, admittedly --- liquid depth piece-rate system and separation method.
Background technology
Water-base drilling fluid is most widely used drilling fluid types, always in occupation of predominantly in practical field application
Position.But after the completion of drilling well, surplus drilling fluid is starched always because of its emulsification degree height, containing a large amount of stable elements and complicated component,
It is difficult to be demulsified de- steady, so as to generate the problem of storage and processing, does not meet environmental protection requirement.
Take off that steady separation method process flow is complex, and coordinative composition of equipments is larger in discarded water-base drilling fluid at present.
Such as：China Patent No. 201320881564.1 discloses one kind《Waste drilling fluids disposal device》, including de- steady centrifugation
Unit, sheet frame separative element and sewage treatment unit.It takes off steady centrifugal separation unit and de- steady, broken glue processing is carried out to rejected well drilling liquid
And solid phase and liquid phase are centrifuged out, sheet frame separative element carries out plate compression to the liquid phase isolated, and secondary separation goes out solid phase
And liquid phase, sewage treatment unit carry out oxidation reaction and adsorption filtration to the liquid phase that secondary separation goes out, realize the up to standard of water successively
Discharge recycles.The mating complexity of this appliance arrangement, takes up a large area, labo r usage is big.Cannot to the solid phase isolated into
The further screening of row, causing active ingredient can not recycle.Processing procedure need to add in de- surely broken glue medicament, cause secondary
Pollution, and the liquid phase isolated cannot be recycled.For another example：China Patent No.：201320685234.5 disclose one
Kind《Abandoned drilling fluid of oilfield processing unit》, including lifting tipper, drill cuttings transhipment slot, buffer bin, screw mixing
Conveyer, bidirectional screw conveyer, the first Forced Mixing blender, the second Forced Mixing blender, screw conveyor, automatic packet
Installation, the first compound pump, chelated dispersants case, second medicament pump and curing agent case.Drill cuttings transhipment slot is located at lifting and overturns
On machine, lifting tipper closes on buffer bin installation settings, and the outlet of buffer bin and the entrance of screw mixing conveyer are led
Logical, the outlet of screw mixing conveyer is connected with the entrance of bidirectional screw conveyer, the one outlet of bidirectional screw conveyer
It is connected with the entrance of the first Forced Mixing blender, another outlet of bidirectional screw conveyer and the second Forced Mixing blender
Entrance conducting.This waste drilling fluids disposal device is more using equipment, takes up a large area, and flow is complicated；Processing procedure needs
Using a large amount of medicament, secondary pollution is caused；Advanced treating is not carried out, and processing is not thorough, it is impossible to realize resource circulation utilization.
In addition the chemical agent using a large amount of De-emulsification flocculent, shape are needed in discarded water-base drilling fluid takes off steady separation method
Into secondary pollution.Separation process is mostly that drilling fluid is divided into solid phase and water phase, and it is repeatable can not to recycle native powder therein, mountain flour etc.
The ingredient utilized, it is impossible to carry out the advanced treating of drilling fluid, cause the waste of resource.Such as：China Patent No.：
200810141519.6 disclose one kind《For the process of comprehensive treatment for waste drilling fluid following drill for oil-gas field》, liquid separation bits point
From, separation of solid and liquid, sewage disposal, purified water storage reuse four-stage, cleaned according to primary purification, Swirling flow sand-removing, eddy flow remove
Oil, double purification cleaning, three times purification cleaning, muddy water take off steady separation of solid and liquid, filtrate dosing break it is steady, air supporting, light electrolysis, forced
Filter aoxidizes, the flow processing of fine adsorption filtration, realizes liquid bits cleaning separation after-purification utilization.Wherein, a part of muddy water reuse
With slurry, remaining muddy water solid-liquid separation dehydration sludge is utilized into cake.Sewage disposal major pollutants index is up to standard, is returned convenient for place
With the bits separation cleaning water reuse of, liquid or qualified discharge with boring comprehensive treatment target.This patent equipment floor space is huge, place
It is extremely complex to manage flow, eddy flow and light electrolysis, air supporting operation consume energy greatly, and whole process can not be torn open according to operating mode
Point, it is impossible to realize that solid phase depth detaches.For another example：China Patent No.：201210372639.3 disclose one kind《A kind of Discarded Drilling Materials
The processing method of liquid》.Rejected well drilling liquid is sent into stirring pool, water-soluble demulsifier is injected into stirring pool stirring, after stirring
It send to flat flow sloping plate oil separation tank；Upper strata oil slick is transported to gravity type oil sump；The sludge of bottom is delivered to sludge conditioning pond, to
Adding sludge conditioner in sludge conditioning pond, sludge conditioner enters sludge transporting pipeline after being sufficiently mixed with sludge, while
Flocculant is injected in sludge transporting pipeline end, is dehydrated into sleeping spiral shell discharging sedimentation centrifuge, and dewatered separation water is back to
Flat flow sloping plate oil separation tank；The sewage flowed out from flat flow sloping plate oil separation tank is sequentially entered into level-one oil removal filter and two level is removed
Oil strainer carries out sewage water filtration de-oiling；Flat flow sloping plate oil separation tank, level-one oil removal filter and two level oil removing filtering will be come from
Device top oil slick is transported to gravity type oil sump and carries out water-oil separating.Oil base drilling fluid is biased toward when processing method is applied at the scene
Separating treatment, and the method can not sub-sieve go out solid phase components in drilling fluid, such equipment is related to a variety of flat flow equipment
And gravity installation, larger sedimentation separation space is needed, suitable for being used in the larger environment in the spaces such as station.This kind equipment
Dehydrating effect it is poor, the moisture content of sludge is higher, is unable to reach transport requirement, while this flow can not also realize following for resource
Ring uses.
Invention content
The purpose of the present invention is be directed in the prior art lack station treatment scale it is intensive, flow is simple, equipment is small-sized,
Can depth separation stablize drilling fluid system equipment, the problem of cannot being recycled to ingredient available in drilling fluid,
Propose a kind of drilling fluid depth piece-rate system and separation method.
First the present invention provides drilling fluid depth piece-rate system, scheme includes：
First kind drilling fluid depth piece-rate system is set including drilling well liquid storage tank 1, cycle water pot 2, pipe-line mixer 3, ultrasonic emulsion breaking
Standby 4, horizontal spiral centrifuge 6, horizontal spiral conveying equipment 7, differential separator 8, sandfiltration pot 10 and carbon filter tank 11, wherein：It bores
Well liquid storage tank 1 and cycle water pot 2 are connect respectively with pipe-line mixer 3, and ultrasonic emulsion breaking equipment 4 is installed on pipe using one or more groups of
Outside road mixer 3,6 input terminal of horizontal spiral centrifuge is connect with 3 output terminal of pipe-line mixer, horizontal spiral conveying equipment 7,
Differential separator 8 is sequentially connected to 6 solid phase output terminal of horizontal spiral centrifuge, and sandfiltration pot 10 and carbon filter tank 11 are sequentially connected to crouch
The liquid phase output of formula screw centrifuge 6.
Separation method for first kind drilling fluid depth piece-rate system is：The water recycled in water pot 2 is sent into pipeline to mix
Clutch 3 adjusts water and reaches rated discharge；It opens horizontal spiral centrifuge 6 and reaches rated speed；By drilling fluid by drilling well liquid storage tank
1 is gradually mixed into pipe-line mixer 3 and enters horizontal spiral centrifuge 6 from less to more；Open ultrasonic emulsion breaking equipment 4；After separation
Solid phase is sent into differential separator 8 after being dried by horizontal spiral conveying equipment 7, by solid phase be separated into mountain flour, native powder and
Landwaste；Water after separation is sent into sandfiltration pot 10, carbon filter tank 11 is purified.
Second class drilling fluid depth piece-rate system is to further include to connect with pipe-line mixer 3 on the basis of the first scheme
Pharmacy jar 5 and regulating valve.
Further, the ultrasonic emulsion breaking equipment 4 is equipped with continuous impulse double-frequency ultrasound generator；The horizontal screw centrifugal
Machine 6 is frequency-changing horizontal screw centrifuge 6；The horizontal spiral conveying equipment 7 is with having heaters；The class of the pipe-line mixer 3
Type includes vortex patern, nozzle type, special-shaped template or porous template.
Separation method for the second class drilling fluid depth piece-rate system is：The water recycled in water pot 2 is sent into pipeline to mix
Clutch 3 adjusts water and reaches rated discharge；It opens frequency-changing horizontal screw centrifuge 6 and reaches rated speed；By drilling fluid by drilling fluid
Storage tank 1 is gradually mixed into pipe-line mixer 3 and enters frequency-changing horizontal screw centrifuge 6 from less to more；Open ultrasonic emulsion breaking equipment 4；
When the higher old slurry demulsification of emulsification degree is de- steady difficult, the demulsifier in pharmacy jar 5 is mixed into pipe-line mixer 3 and accelerates to be demulsified
It is de- steady；Solid phase after separation is sent into differential separation after being dried by the horizontal spiral conveying equipment 7 of confining zone heating function
Solid phase is separated into mountain flour, native powder and landwaste by machine 8；Water after separation is sent into sandfiltration pot 10, carbon filter tank 11 and is further purified.
Third class drilling fluid depth piece-rate system is advanced optimized on the basis of second scheme, including：The company
The frequency of continuous pulse double-frequency ultrasound generator is respectively 20KHZ, 40KHZ；Layering is filled out successively from the bottom to top in the sandfiltration pot 10
Quartz sand particle is filled, quartz sand particle size is required in 4-40 mesh, is loaded by the ascending layering of particle size, and every layer of grain size is consistent,
Highly not less than 30cm, the number of plies is no less than 5 layers；Activated carbon is filled in the carbon filter tank 11.
Sandfiltration pot 10 and carbon filter tank 11 and the liquid phase output of horizontal spiral centrifuge 6 are connected with triple valve 9, threeway simultaneously
One branch of valve 9 is connected to cycle water pot 2.
Drilling well liquid storage tank 1 and cycle water pot 2 are connect respectively by centrifugal pump with pipe-line mixer 3；Pharmacy jar 5 is in pipeline
3 top of mixer, and connect by regulating valve with pipe-line mixer 3.
Separation method for third class drilling fluid depth piece-rate system is：The water recycled in water pot 2 is sent into pipeline to mix
Clutch 3 adjusts water and reaches rated discharge；It opens frequency-changing horizontal screw centrifuge 6 and reaches rated speed；By drilling fluid by drilling fluid
It is pumped out in storage tank 1, gradually adjusts drilling well liquid measure and be mixed into pipe-line mixer 3 from less to more and enter frequency-changing horizontal screw centrifuge 6；
Open ultrasonic emulsion breaking equipment 4；When the higher old slurry demulsification of emulsification degree is de- steady difficult, the valve addition demulsification of pharmacy jar 5 is opened
Agent, which is mixed into pipe-line mixer 3, accelerates demulsification de- steady；Solid phase after separation is conveyed by the horizontal spiral of confining zone heating function
Equipment 7 is sent into differential separator 8 after being dried, and solid phase is separated into mountain flour, native powder and landwaste；Mountain flour, native powder recycling, rock
Bits qualified discharge after burning or Thermal desorption removes oil；Liquid phase after separation controls liquid phase to shunt by triple valve 9, part point
Water from after is reentered in cycle water pot 2 and is recycled, remaining water is sent into sandfiltration pot 10, carbon filter tank 11 and is further purified simultaneously
As with pulp-water in drilling process reuse or be further processed it is up to standard after discharge.
Show that the present invention is will to be drilled the surplus drilling fluid depth after well to be separated by above-mentioned a series of technical solution
Liquid phase, solid phase, liquid phase are further separated into oil, water, and solid phase is further separated into native powder, mountain flour, landwaste.Wherein water is as drilling well
It is qualified discharge water with water reuse or further purified treatment.Solid phase can be " native powder ", " mountain flour " further according to Density Separation
And " landwaste " waste, wherein native powder and mountain flour are recyclable, the part of " landwaste " waste and oil-containing carries out " heat treatment "
Or it is discharged after burning disposal, the final purpose for realizing depth separation.
The invention has the advantages that：
1. the equipment flowsheet of the present invention is simple, device volume is small, floor space is small, circulate operation is carried out using water phase after separation,
It realizes online, closing, random walk, random process can be carried out to drilling fluid according to actual needs, it is adaptable；
2. main Applied Physics method of the invention is handled, chemicals dosage is few, does not cause secondary pollution；
3. the water phase of the present invention after isolation can be recycled, the waste of water is not caused；Native powder, the mountain flour isolated simultaneously can weigh
It is multiple to use, it does not cause to waste, it is cost-effective.After recycling, need the solid, liquid amount discharged few.
4. the separative efficiency of the present invention is high, low energy consumption, high treating effect, can according to the rational selecting module flow of operating mode into
Row installation, suitable for being installed and used in the various places such as situ of drilling well and station.
Description of the drawings
Attached drawing 1 is a kind of structure diagram of exemplary embodiments of the present invention.
In figure：1 drilling well liquid storage tank, 2 cycle water pots, 3 pipe-line mixers, 4 ultrasonic emulsion breaking equipment, 5 pharmacy jars, 6 is sleeping
Formula screw centrifuge, 7 horizontal spiral conveying equipments, 8 differential separators, 9 triple valves, 10 sandfiltration pots, 11 carbon filter tanks.
Specific embodiment
Below in conjunction with the accompanying drawings 1 and specific embodiment the invention will be further described.
Embodiment 1, a kind of drilling fluid depth piece-rate system, including drilling well liquid storage tank 1, cycle water pot 2, pipe-line mixer 3,
Ultrasonic emulsion breaking equipment 4, horizontal spiral centrifuge 6, horizontal spiral conveying equipment 7, differential separator 8, sandfiltration pot 10 and carbon filter tank
11, wherein：Drilling well liquid storage tank 1 and cycle water pot 2 are connect respectively with pipe-line mixer 3, and ultrasonic emulsion breaking equipment 4 uses one group or more
Group is installed on outside pipe-line mixer 3, and 6 input terminal of horizontal spiral centrifuge is connect with 3 output terminal of pipe-line mixer, horizontal spiral
Conveying equipment 7, differential separator 8 be sequentially connected to 6 solid phase output terminal of horizontal spiral centrifuge, sandfiltration pot 10 and carbon filter tank 11 according to
The secondary liquid phase output for being connected to horizontal spiral centrifuge 6.
Separation method for embodiment 1 is：The water recycled in water pot 2 is sent into pipe-line mixer 3, water is adjusted and reaches volume
Fixed displacement；It opens horizontal spiral centrifuge 6 and reaches rated speed；Drilling fluid is gradually mixed into from less to more by drilling well liquid storage tank 1
Pipe-line mixer 3 simultaneously enters horizontal spiral centrifuge 6；Open ultrasonic emulsion breaking equipment 4；Solid phase after separation is defeated by horizontal spiral
Equipment 7 is sent to be sent into differential separator 8 after being dried, solid phase is separated into mountain flour, native powder and landwaste；Water after separation is sent into
Sandfiltration pot 10, carbon filter tank 11 are purified.
Embodiment 2 further includes the pharmacy jar 5 being connect with pipe-line mixer 3 and regulating valve on the basis of embodiment 1.
Further, the ultrasonic emulsion breaking equipment 4 is equipped with continuous impulse double-frequency ultrasound generator；The horizontal screw centrifugal
Machine 6 is frequency-changing horizontal screw centrifuge 6；The horizontal spiral conveying equipment 7 is with having heaters；The class of the pipe-line mixer 3
Type includes vortex patern, nozzle type, special-shaped template or porous template.
Separation method for embodiment 2 is：The water recycled in water pot 2 is sent into pipe-line mixer 3, water is adjusted and reaches volume
Fixed displacement；It opens frequency-changing horizontal screw centrifuge 6 and reaches rated speed；Drilling fluid is gradual from less to more by drilling well liquid storage tank 1
It is mixed into pipe-line mixer 3 and enters frequency-changing horizontal screw centrifuge 6；Open ultrasonic emulsion breaking equipment 4；The higher old slurry of emulsification degree
When demulsification is de- steady difficult, the demulsifier in pharmacy jar 5 is mixed into pipe-line mixer 3 and accelerates demulsification de- steady；Solid phase after separation
Differential separator 8 is sent into after being dried by the horizontal spiral conveying equipment 7 of confining zone heating function, solid phase is separated into
Mountain flour, native powder and landwaste；Water after separation is sent into sandfiltration pot 10, carbon filter tank 11 and is further purified.
Embodiment 3 advanced optimizes on the basis of embodiment 2, including：
The frequency of the continuous impulse double-frequency ultrasound generator is respectively 20KHZ, 40KHZ；In the sandfiltration pot 10 from the bottom to top
Layering loads quartz sand particle successively, and quartz sand particle size is required in 4-40 mesh, is loaded by the ascending layering of particle size, every layer
Grain size is consistent, and highly not less than 30cm, the number of plies is no less than 5 layers；Activated carbon is filled in the carbon filter tank 11.
Sandfiltration pot 10 and carbon filter tank 11 and the liquid phase output of horizontal spiral centrifuge 6 are connected with triple valve 9, threeway simultaneously
One branch of valve 9 is connected to cycle water pot 2.
Drilling well liquid storage tank 1 and cycle water pot 2 are connect respectively by centrifugal pump with pipe-line mixer 3；Pharmacy jar 5 is in pipeline
3 top of mixer, and connect by regulating valve with pipe-line mixer 3.
Separation method for embodiment 3 is：The water recycled in water pot 2 is sent into pipe-line mixer 3, water is adjusted and reaches volume
Fixed displacement；It opens frequency-changing horizontal screw centrifuge 6 and reaches rated speed；By drilling fluid by being pumped out in drilling well liquid storage tank 1, gradually adjust
Section drilling well liquid measure is mixed into pipe-line mixer 3 and enters frequency-changing horizontal screw centrifuge 6, frequency-changing horizontal screw centrifuge from less to more
6 treating capacities in 10m3/h~20m3/h,；Open ultrasonic emulsion breaking equipment（4）（Four groups of ultrasonic emulsion breaking equipment 4 uniform peace symmetrical above and below
Outside pipe-line mixer 3）；When the higher old slurry demulsification of emulsification degree is de- steady difficult, the valve addition for opening pharmacy jar 5 is broken
Emulsion, which is mixed into pipe-line mixer 3, accelerates demulsification de- steady；Solid phase after separation is defeated by the horizontal spiral of confining zone heating function
Equipment 7 is sent to be sent into differential separator 8 after being dried, wherein differential separator rotating speed can be in 100r/min~3000r/min models
Interior adjusting is enclosed, the solid phase of different densities can finely be detached, can be ensured that solid phase is aqueous after multistage centrifugal and be less than 60%.
Solid phase is separated into mountain flour, native powder and landwaste；Mountain flour, native powder recycling, landwaste remove oil through burning or Thermal desorption
Qualified discharge after point；Liquid phase after separation controls liquid phase to shunt by triple valve 9, and the water after being partially separated reenters recirculated water
It is recycled in tank 2, remaining water is sent into sandfiltration pot 10, carbon filter tank 11 and further purifies and be used as with pulp-water in drilling process
Reuse is further processed rear discharge up to standard.
Claims (9)
1. a kind of drilling fluid depth piece-rate system, including drilling well liquid storage tank（1）, cycle water pot（2）, pipe-line mixer（3）, ultrasound
Emulsion breaking device（4）, horizontal spiral centrifuge（6）, horizontal spiral conveying equipment（7）, differential separator（8）, sandfiltration pot（10）With
Carbon filter tank（11）, it is characterised in that：Drilling well liquid storage tank（1）With cycle water pot（2）Respectively with pipe-line mixer（3）Connection, ultrasound
Emulsion breaking device（4）Pipe-line mixer is installed on using one or more groups of（3）Outside, horizontal spiral centrifuge（6）Input terminal and pipe
Road mixer（3）Output terminal connects, horizontal spiral conveying equipment（7）, differential separator（8）It is sequentially connected to horizontal screw centrifugal
Machine（6）Solid phase output terminal, sandfiltration pot（10）With carbon filter tank（11）It is sequentially connected to horizontal spiral centrifuge（6）Liquid phase output
End.
2. drilling fluid depth piece-rate system according to claim 1, it is characterised in that：It further includes and pipe-line mixer（3）
The pharmacy jar of connection（5）And regulating valve.
3. drilling fluid depth piece-rate system according to claim 1 or 2, it is characterised in that：The ultrasonic emulsion breaking equipment（4）
Continuous impulse double-frequency ultrasound generator is installed；The horizontal spiral centrifuge（6）For frequency-changing horizontal screw centrifuge（6）；Institute
State horizontal spiral conveying equipment（7）Band having heaters；The pipe-line mixer（3）Type include vortex patern, nozzle type, abnormity
Template or porous template.
4. drilling fluid depth piece-rate system according to claim 3, it is characterised in that：The continuous impulse double-frequency ultrasound hair
The frequency of raw device is respectively 20KHZ, 40KHZ；The sandfiltration pot（10）Inside layering loads quartz sand particle, stone successively from the bottom to top
Sand Particle size requirements are loaded by the ascending layering of particle size in 4-40 mesh, and every layer of grain size is consistent, highly not less than 30cm,
The number of plies is no less than 5 layers；The carbon filter tank（11）Middle filling activated carbon.
5. drilling fluid depth piece-rate system according to claim 4, it is characterised in that：Sandfiltration pot（10）With carbon filter tank（11）
With horizontal spiral centrifuge（6）Liquid phase output be connected with triple valve simultaneously（9）, triple valve（9）A branch be connected to
Recycle water pot（2）.
6. drilling fluid depth piece-rate system according to claim 5, it is characterised in that：Drilling well liquid storage tank（1）And recirculated water
Tank（2）Pass through centrifugal pump and pipe-line mixer respectively（3）Connection；Pharmacy jar（5）In pipe-line mixer（3）Top, and pass through
Regulating valve and pipe-line mixer（3）Connection.
7. the separation method of drilling fluid depth piece-rate system according to claim 1, it is characterised in that：Water pot will be recycled（2）
In water be sent into pipe-line mixer（3）, adjust water and reach rated discharge；Open horizontal spiral centrifuge（6）Reach rated speed；
By drilling fluid by drilling well liquid storage tank（1）It is gradually mixed into pipe-line mixer from less to more（3）And enter horizontal spiral centrifuge（6）；
Open ultrasonic emulsion breaking equipment（4）；Solid phase after separation passes through horizontal spiral conveying equipment（7）Differential separation is sent into after being dried
Machine（8）, solid phase is separated into mountain flour, native powder and landwaste；Water after separation is sent into sandfiltration pot（10）, carbon filter tank（11）It carries out net
Change.
8. the separation method of drilling fluid depth piece-rate system according to claim 3, it is characterised in that：Water pot will be recycled（2）
In water be sent into pipe-line mixer（3）, adjust water and reach rated discharge；Open frequency-changing horizontal screw centrifuge（6）Reach specified
Rotating speed；By drilling fluid by drilling well liquid storage tank（1）It is gradually mixed into pipe-line mixer from less to more（3）And enter frequency-changing horizontal spiral from
Scheming（6）；Open ultrasonic emulsion breaking equipment（4）；When the higher old slurry demulsification of emulsification degree is de- steady difficult, by pharmacy jar（5）In
Demulsifier is mixed into pipe-line mixer（3）It is middle to accelerate demulsification de- steady；The horizontal spiral shell that solid phase after separation passes through confining zone heating function
Revolve conveying equipment（7）Differential separator is sent into after being dried（8）, solid phase is separated into mountain flour, native powder and landwaste；After separation
Water be sent into sandfiltration pot（10）, carbon filter tank（11）Further purification.
9. the separation method of drilling fluid depth piece-rate system according to claim 6, it is characterised in that：Water pot will be recycled（2）
In water be sent into pipe-line mixer（3）, adjust water and reach rated discharge；Open frequency-changing horizontal screw centrifuge（6）Reach specified
Rotating speed；By drilling fluid by drilling well liquid storage tank（1）In pump out, gradually adjust drilling well liquid measure be mixed into pipe-line mixer from less to more（3）
And enter frequency-changing horizontal screw centrifuge（6）；Open ultrasonic emulsion breaking equipment（4）；The higher old slurry demulsification of emulsification degree is de- steady tired
When difficult, pharmacy jar is opened（5）Valve addition demulsifier be mixed into pipe-line mixer（3）It is middle to accelerate demulsification de- steady；Consolidating after separation
Mutually pass through the horizontal spiral conveying equipment of confining zone heating function（7）Differential separator is sent into after being dried（8）, by solid phase point
From as mountain flour, native powder and landwaste；Mountain flour, native powder recycling, landwaste qualified discharge after burning or Thermal desorption removes oil；Separation
Liquid phase afterwards passes through triple valve（9）Liquid phase shunting is controlled, the water after being partially separated reenters cycle water pot（2）Middle cycle makes
With remaining water is sent into sandfiltration pot（10）, carbon filter tank（11）Further purify and as with pulp-water in drilling process reuse or
Person is further processed rear discharge up to standard.
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| CN201611203315.1A CN108238694A (en) | 2016-12-23 | 2016-12-23 | A kind of drilling fluid depth piece-rate system and separation method |
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| CN201611203315.1A CN108238694A (en) | 2016-12-23 | 2016-12-23 | A kind of drilling fluid depth piece-rate system and separation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792701A (en) * | 2019-04-09 | 2020-10-20 | 北京化工大学 | Demulsification separation system and method for oil-water emulsion |
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