Well drilling waste mud integral treatment method
Technical field
The present invention relates to a kind of well drilling waste mud processing method.
Background technology
Vibrosieve, desander, old mud device and centrifugation in petroleum natural gas exploration drilling process, in drilling facilities
Machine can all produce mud, and these discarded slurries are made up of solid phase, liquid phase and three part of chemical treatments, wherein containing substantial amounts of
The multinomial colloidal suspension system of clay, weighting material, various chemical treatments, sewage, sump oil and drilling cuttings, if do not located
Reason, will cause immeasurable harm to natural environment.
The domestic processing mode to waste drilling fluid has three kinds at present:Directly discharge, systemic circulation pond are precipitated and cured.
(1)Direct exhaust method
Some waste drilling fluids can be directly discharged in environment, but this is only limitted to low toxicity or nontoxic drilling fluid, or
The drilling fluid garbage of easily biological-degradable, the method are not suitable for the higher oil base drilling fluid of harmful components and polymerization species drilling well
Liquid.
(2)The systemic circulation pond sedimentation method
Waste drilling fluid is arranged after reaching environmental protection standard by natural sedimentation separation, the top stillness of night in systemic circulation pond on the spot
Put, remaining solid Jing is spontaneously dried and filled in circulatory pool on the spot, but must keep the thickness of 1 meter to 1.5 meters of upper soil horizon.
Pass through the instruments such as neutron probe, lisimeter to the drilling fluid garbage after landfill to filling region Jing petroleum environments research committee
Surface water and radiation soil are tracked monitoring, it is found that the method has a significant impact to surface water and radiation area soil, it is necessary to careful
With.
(3)The method of cured drilling fluid
Solidification method adds firming agent in being directed to waste drilling fluid so as to be converted into the very big solid of soil or cementing strength,
Fill on the spot or for construction material etc., the method can eliminate in drilling fluid heavy metal ion with Organic substance to soil, water quality
And the impact of ecological environment and harm.The waste drilling fluid higher for water content, with reference to solid-liquid isolation method, can obtain preferably
Effect.Solidification method is currently the method for the most frequently used process well drilling waste mud.
This several ways can not all be reused, and surrounding enviroment are caused with potential impact, increased environmental risk
With cost pressure.
The content of the invention
The technical problem to be solved in the present invention is:A kind of well drilling waste mud integral treatment method is provided.
In order to solve above-mentioned technical problem, by the present invention mud produced by drilling team intrinsic desander, desilter and vibrosieve
Slurry carries out solid-liquid separation successively by landwaste centrifuge for removing liquid, husky bits removal machine and water process regenerating device, makes liquid phase pass sequentially through landwaste
Centrifuge for removing liquid, husky bits removal machine and water process regenerating device collect reuse after processing, by landwaste centrifuge for removing liquid, husky bits removal machine, water process
Solid phase produced by the intrinsic centrifuge of regenerating device and drilling team is transported to haulage vehicle by conveying worm, in conveying worm
To the solid phase addition firming agent in conveying worm in course of conveying.
In order to improve solid-liquid separation effect, described landwaste centrifuge for removing liquid adopts vibrosieve, husky bits removing machine to adopt centrifuge,
Water process regenerating device is using folded spiral shell machine.
In order to easy to operate, the equipment that this method is adopted includes automatic classification collection module, multistage solid-liquid separation combination die
Block and solid phase induction system, automatic classification collection module include the described landwaste centrifuge for removing liquid of multiple series connection and slurry can combination,
Each landwaste centrifuge for removing liquid and slurry can combination in landwaste centrifuge for removing liquid liquid-phase outlet connection slurry can, previous landwaste centrifuge for removing liquid and
The slurry can of slurry can combination connects the charging aperture of the landwaste centrifuge for removing liquid of its latter landwaste centrifuge for removing liquid and slurry can combination, multistage
Solid-liquid separation composite module includes described husky bits removing machine, multi-functional regulation tank and described water process regenerating device, last
The charging aperture of individual slurry can connection sand bits removing machine, multi-functional regulation tank include agent-feeding treatment area and clear water working area, and husky bits are removed
The liquid-phase outlet of machine is gone to connect the multi-functional agent-feeding treatment area for adjusting tank, the agent-feeding treatment area connection water process of multi-functional regulation tank
The charging aperture of regenerating device, the liquid-phase outlet of water process regenerating device connect the multi-functional clear water working area for adjusting tank, each landwaste centrifuge for removing liquid
Solid phase induction system is connect with the solid-phase outlet of husky bits removing machine, solid phase induction system is connected with firming agent addition machine, solid phase conveying
System is described conveying worm, adds machine by firming agent and adds firming agent to conveying worm.
Automatically precipitate in tank to realize that partial solid phase is adjusted in multipotency, described automatic classification collection module includes two
Landwaste centrifuge for removing liquid and slurry can combination, are the first landwaste centrifuge for removing liquid and the combination of the first slurry can and the second landwaste centrifuge for removing liquid and the
Two slurry cans are combined, and described multi-functional regulation tank also includes sewage working area, between sewage working area and agent-feeding treatment area
Overfall dam is provided with, the liquid-phase outlet connection sewage working area of husky bits removing machine, the liquid-phase outlet of husky bits removing machine pass through sewage
Working area connection agent-feeding treatment area, sewage working area is connected by the bypass line with valve with the second slurry can.
In order that the first slurry can is compensated to the capacity of the second slurry can, while floor space is reduced at guarantee
Reason effect, the first described slurry can and the second slurry can are to split to be formed by a tank body, be provided with tank body overflow every
Plate, tank skin of the weir divider less than tank body, the both sides of weir divider are respectively the first slurry can and the second slurry can, the second storage slurry
The volume of tank is less than the first slurry can, controls the liquid level of the first slurry can and the second slurry can, makes only the second slurry can to the
One slurry can overflow, and the first slurry can is not to the second slurry can overflow.
For emergency processing, the equipment that this method is adopted also includes emergent storage tank and liquid level automatic compensating controller, the
The first delivery pump is provided with one slurry can, the second delivery pump in emergent storage tank, is provided with, the first conveying pump discharge passes through band respectively
There are the emergent storage tank of pipeline connection and the charging aperture of the second landwaste centrifuge for removing liquid of electrically operated valve, the outlet of the second delivery pump passes through pipeline
Connect the charging aperture of the first landwaste centrifuge for removing liquid, in the first slurry can, be provided with liquid level detection device, liquid level detection device, the first conveying
Pump, the second delivery pump and electrically operated valve are connected with liquid level automatic compensating controller, and liquid level automatic compensating controller is used to receive
The keying of first delivery pump of signal and control, the second delivery pump and electrically operated valve of liquid level detection device, when in the first slurry can
Liquid level reach setting high level when, the slurry outlet of drilling team intrinsic vibrosieve is connect into the first slurry can, and makes the mud of vibrosieve
Starch by emergent storage tank transfer in landwaste centrifuge for removing liquid processing procedure, when the liquid level in the first slurry can reaches setting low value,
The slurry outlet of drilling team intrinsic vibrosieve is connect into the charging aperture of the first landwaste centrifuge for removing liquid, the first delivery pump is closed, and is made to meet an urgent need
Storage tank conveys discarded slurry to the first landwaste centrifuge for removing liquid, when the first slurry can liquid level is between aforementioned two kinds of liquid levels, by drilling team
The slurry outlet of intrinsic vibrosieve connects the charging aperture of the first landwaste centrifuge for removing liquid, the emergent storage tank of cut-out, and makes the mud of vibrosieve
By emergent storage tank transfer in landwaste centrifuge for removing liquid processing procedure.
For the ease of adding sewage disposal medicament, described multistage solid-liquid separation composite module also to include chemicals feeder,
The water inlet of chemicals feeder connects the multi-functional clear water working area for adjusting tank by pump, and the discharging opening of chemicals feeder connects multi-functional regulation tank
Agent-feeding treatment area, clear water working area is connected with clean water tank.
In order that sewage disposal medicament is mixed homogeneously with sewage, set in the agent-feeding treatment area of described multi-functional regulation tank
There is agitator.
For the ease of conveying solid phase, described solid phase induction system includes the first conveyer, the second conveying being sequentially connected in series
Machine, the 3rd conveyer, the 4th conveyer and the 5th conveyer, five conveyers are conveying worm, the first conveyer and
Two conveyers add machine connection by firming agent, and the solid-phase outlet of all landwaste centrifuge for removing liquid connects the first conveyer, and drilling team is intrinsic
The solid-phase outlet of centrifuge connects second conveyor, and the solid-phase outlet of husky bits removing machine connects the 4th conveyer, water process regenerating device
Solid-phase outlet connects the 5th conveyer, and solid phase passes sequentially through the first conveyer, second conveyor, the 3rd conveyer, the 4th conveyer
Haulage vehicle is transported to the 5th conveyer.
The invention has the beneficial effects as follows:The present invention can not change former drilling technology, not construct landing mud pit and not
Fully realize processing the live solid-liquid separation of discarded slurry using materialization technology in the case of adding medicament, it is to avoid traditional to give up
The increment of the secondary pollution and pollutant effulent brought because of a large amount of delivering medicaments in sludge treatment process is abandoned, it is truly real
The live minimizing to drilling wastes and harmless treatment are showed.The present invention can scientificlly and effectively in drilling well drilling process
Discarded slurry carry out classification and divide and rule, realize with the innovation mode bored with solidification, filled up the domestic blank of this aspect.This
The bright minimizing for realizing hazardous waste disposal, innoxious and resource, eliminate polluter, are conducive to protecting well site periphery
The soil and groundwater resources of environment.The present invention is carried out to well drilling waste mud after multistage solid-liquid separation, and solid phase can be by transporting
Vehicle transport goes out well site, carries out subsequent treatment, and liquid phase is reused in being recycled into drilling mud system, has to reduce
The discharge of evil material.One aspect of the present invention can greatly reduce the use of solidification medicament by the processing mode divided and ruled, so as to
The discharge of harmful solid phase is reduced fundamentally;On the other hand due to carrying out in the case of without firming agent in processing procedure
Solid-liquid separation, is so greatly improved the reclamation rate of liquid phase after processing, so as to fundamentally realize the minimizing of discarded slurry.
Description of the drawings
Fig. 1 is the structure flow chart of the present invention;
Fig. 2 is the structural representation enlarged drawing of part 1 in Fig. 1;
Fig. 3 is the structural representation enlarged drawing of part 3 in Fig. 1;
In figure:1. automatic classification collection module, 2. solid phase induction system, 3. multistage solid-liquid separation composite module, 4. software
Clean water tank, 5. haulage vehicle, 6. combined emergency storage tank, 1-1. the first landwaste centrifuge for removing liquid, the first slurry cans of 1-2., 1-3. second are stored up
Slurry tank, 1-4. the second landwaste centrifuge for removing liquid, 1-5. firming agent addition machine, 1-6. liquid level detection devices, 1-7. valves, 1-8. pumps, 1-
9.LED explosion-proof illuminating lamps, 1-10. agitators, the husky bits removing machines of 3-1., the multi-functional regulation tanks of 3-2., 3-3. valves, 3-4. stirrings
Device, 3-5. pumps, 3-6. chemicals feeders, 3-7. water process regenerating devices, 3-8.LED explosion-proof illuminating lamps, 7, vibrosieve, 8, desander, 9,
Desilter, 10, centrifuge.
Specific embodiment
Example one
The mud produced by drilling team intrinsic desander, desilter and vibrosieve is by landwaste centrifuge for removing liquid, husky bits removal machine
Solid-liquid separation is carried out successively with water process regenerating device, makes liquid phase pass sequentially through landwaste centrifuge for removing liquid, husky bits removal machine and water process again
Reuse is collected after life process, landwaste centrifuge for removing liquid, husky bits removal machine, water process regenerating device and drilling team intrinsic centrifuge is produced
Raw solid phase is transported to haulage vehicle by conveying worm, to consolidating in conveying worm in conveying worm course of conveying
Mutually add firming agent.
Landwaste centrifuge for removing liquid adopts vibrosieve, husky bits removing machine to adopt centrifuge, water process regenerating device to be sludge dewatering equipment,
Sludge dewatering equipment can be using folded spiral shell machine.
Example two
This specific embodiment adopts following well drilling waste mud integrated equipment for wastewater treatment on the basis of one method of example.
A kind of well drilling waste mud integrated equipment for wastewater treatment as shown in Figure 1, it includes automatic classification collection module 1, consolidates
Phase induction system 2, multistage solid-liquid separation composite module 3 and software clean water tank 4.
As shown in Fig. 2 automatic classification collection module 1 includes the first landwaste centrifuge for removing liquid 1-1, the first slurry can 1-2, the second storage
Slurry tank 1-3, the second landwaste centrifuge for removing liquid 1-4, firming agent addition machine 1-5, valve 1-7, pump 1-8, LED explosion-proof illuminating lamp 1-9 and and
Agitator 1-10.First slurry can 1-2 and the second slurry can 1-3 are to split to be formed by a tank body, in tank body are provided with excessive
Stream dividing plate, tank skin of the weir divider less than tank body, the both sides of weir divider are respectively the first slurry can 1-2 and the second slurry can 1-
The volume of 3, the second slurry can 1-3 is less than the first slurry can 1-2.It is equipped with first slurry can 1-2 and the second slurry can 1-3 and stirs
Device 1-10, LED explosion-proof illuminating lamp 1-9 and pump 1-8 are mixed, the second slurry can 1-3 is provided with liquid level automatic compensating controller 1-6, liquid
The compensation liquid entrance of position automatic compensating controller 1-6 connects combined emergency storage tank 6, and the liquid-phase outlet of the first landwaste centrifuge for removing liquid 1-1 connects
The charging aperture of the first slurry can 1-2, the second landwaste centrifuge for removing liquid 1-4 connects the first slurry can 1-2, the liquid of the second landwaste centrifuge for removing liquid 1-4
Mutually outlet meets the second slurry can 1-3.
Emergent storage tank 6 and liquid level automatic compensating controller are also included, in the first slurry can 1-2, the first conveying is provided with
Pump, i.e. pump 1-8, are provided with the second delivery pump in emergent storage tank 6, the first conveying pump discharge is respectively by with electrically operated valve(In Fig. 2
Valve 1-7)The emergent storage tank 6 of pipeline connection and the second landwaste centrifuge for removing liquid 1-4 charging aperture, the outlet of the second delivery pump is by pipe
Line connects the charging aperture of the first landwaste centrifuge for removing liquid 1-1, and liquid level detection device 1-6, Level Detection dress are provided with the first slurry can 1-2
Put 1-6, the first delivery pump, the second delivery pump and electrically operated valve to be connected with liquid level automatic compensating controller, liquid level is compensated automatically
Controller is used for the keying of the first delivery pump of signal and control, the second delivery pump and the electrically operated valve for receiving liquid level detection device.
As shown in figure 3, multistage solid-liquid separation composite module 3 includes husky bits removing machine 3-1, multi-functional regulation tank 3-2, valve
3-3, agitator 3-4, pump 3-5, chemicals feeder 3-6, water process regenerating device 3-7 and LED explosion-proof illuminating lamp 3-8.LED explosion-proof illuminating lamps
3-8 is arranged on husky bits removing machine 3-1.Multi-functional regulation tank 3-2 includes that sewage working area, agent-feeding treatment area and clear water are kept in
Area, is provided with overfall dam, clear water working area and sewage working area and agent-feeding treatment area between sewage working area and agent-feeding treatment area
It is isolated, the liquid-phase outlet of husky bits removing machine 3-1 connects the sewage working area of multi-functional regulation tank 3-2, multi-functional regulation tank 3-2's
Agitator 3-4 and pump 3-5 is provided with agent-feeding treatment area, the agent-feeding treatment area of multi-functional regulation tank 3-2 is connected at water by pump 3-5
The charging aperture of reason regenerating device 3-7, the liquid-phase outlet of water process regenerating device 3-7 connects the clear water working area of multi-functional regulation tank 3-2, many
The clear water working area of function point analysis tank 3-2 connects software clean water tank 4 by pump.The water inlet of chemicals feeder 3-6 connects multi-functional regulation tank
The clear water working area of 3-2, the discharging opening of chemicals feeder 3-6 meet the agent-feeding treatment area of multi-functional regulation tank 3-2.Multi-functional regulation tank 3-
2 sewage working area meets the second slurry can 1-3 by the bypass line with valve 3-3.
The charging aperture of husky bits removing machine 3-1 meets the second slurry can 1-3.
The solid control equipment of well system includes vibrosieve 7, desander 8, desilter 9 and centrifuge 10.
The slurry outlet of vibrosieve 7 connects the slurry outlet of the first landwaste centrifuge for removing liquid 1-1, desander 8 and desilter 9 and connects
Two landwaste centrifuge for removing liquid 1-4.
The first conveyer that solid phase induction system includes being sequentially connected in series, second conveyor, the 3rd conveyer, the 4th conveyer
With the 5th conveyer, five conveyers are conveying worm, and the first conveyer and second conveyor add machine by firming agent
1-5 connects, and the solid-phase outlet of the first landwaste centrifuge for removing liquid 1-1 and the second landwaste centrifuge for removing liquid 1-4 connects the first conveyer, husky bits removing machine
The solid-phase outlet of 3-1 connects the 4th conveyer, and the solid-phase outlet of water process regenerating device 3-7 connects the 5th conveyer.Haulage vehicle 5 is from
Solid phase is seen off by the outlet of five conveyers.
First slurry can 1-2 and the second landwaste centrifuge for removing liquid 1-4, combined emergency storage tank 6 and the first landwaste centrifuge for removing liquid 1-1,
One slurry can 1-2 and combined emergency storage tank 6, the second slurry can 1-3 and husky bits removing machine 3-1, multi-functional regulation tank 3-2 and Shui Chu
Pump is equipped between reason regenerating device 3-7 and multi-functional regulation tank 3-2 and software clean water tank 4, so as to accelerate the flowing of liquid phase.
Two landwaste centrifuge for removing liquid adopt vibrosieve, and preferably with high G vibrosieves, husky bits removing machine adopts centrifuge, water process
Regenerating device is sludge dewatering equipment, and sludge dewatering equipment can be using folded spiral shell machine.
The basic procedure of 2 processing method of example and explanation(As shown in Figure 1, Figure 2, Figure 3 shows):
(1)Liquid phase flow process:
1)Normal plasma discharge:
①:7 → the first landwaste centrifuge for removing liquid 1-1 → the first slurry can 1-2 are sieved in drilling team's intrinsic vibration(It is high that liquid level is maintained at setting
Between value and low value)→ the second landwaste centrifuge for removing liquid 1-4 → the second slurry can 1-3 → sand bits removing machine 3-1 → multi-functional regulation tank
The agent-feeding treatment area of the sewage working area of 3-2 → multi-functional regulation tank 3-2 → water process regenerating device 3-7 → multi-functional regulation tank 3-
2 clear water working area → software 4 → reuse of clean water tank, when the first slurry can 1-2 is less than setting low value, control combination is met an urgent need storage tank
6 to first landwaste centrifuge for removing liquid 1-1 fluid infusion.
②:The intrinsic desander 8 of drilling team, 9 → the second landwaste centrifuge for removing liquid 1-4 → the second slurry can 1-3 of desilter → sand bits are removed
Go the agent-feeding treatment area → water process regeneration of the sewage working area → multi-functional regulation tank 3-2 of machine 3-1 → multi-functional regulation tank 3-2
The clear water working area of machine 3-7 → multi-functional regulation tank 3-2 → software 4 → reuse of clean water tank
2)For slurry, meet an urgent need:Drilling team's intrinsic vibration is sieved into 7 first and is connected to the first slurry can 1-2.
7 → the first slurry can 1-2 are sieved in drilling team's intrinsic vibration, when the first slurry can 1-2 reaches setting high level → combined emergency
6 → the first landwaste centrifuge for removing liquid 1-1 → the first slurry can 1-2 → the second landwaste centrifuge for removing liquid 1-4 → the second slurry can 1-3 of storage tank → sand
Agent-feeding treatment area → the water process of the sewage working area → multi-functional regulation tank 3-2 of bits removing machine 3-1 → multi-functional regulation tank 3-2
The clear water working area of regenerating device 3-7 → multi-functional regulation tank 3-2 → software 4 → reuse of clean water tank
In whole processing procedure, control the liquid level of the first slurry can and the second slurry can, make only the second slurry can to
First slurry can overflow, and the first slurry can is not to the second slurry can overflow.
(2)Solid phase flow process:
①:First landwaste centrifuge for removing liquid 1-1 and the second landwaste centrifuge for removing liquid 1-4 → solid phase 2 → haulage vehicle of induction system
②:Intrinsic 10 → conveying worm of the centrifuge → haulage vehicle of drilling team
③:Husky bits removing machine 3-1 and water process regenerating device 3-7 → solid phase 2 → haulage vehicle of induction system
Process description:
The 7 liquid phase well drilling waste muds discharged, Jing are sieved by drilling team's intrinsic vibration that the first landwaste centrifuge for removing liquid 1-1 is collected
After first landwaste centrifuge for removing liquid 1-1 carries out solid-liquid separation, liquid phase well drilling waste mud enters the first slurry can 1-2;First slurry can
Liquid phase well drilling waste mud in 1-2 is come from the intrinsic desander 8 of drilling team, is desilted by the second landwaste centrifuge for removing liquid 1-4 is pumped into
The liquid phase well drilling waste mud discharged by device 9 also into the second landwaste centrifuge for removing liquid 1-4, through the second landwaste centrifuge for removing liquid 1-4 solid-liquids
After separation, liquid phase well drilling waste mud enters the second slurry can 1-3;Liquid phase well drilling waste mud in second slurry can 1-3 by
Pump into and be extracted into husky bits removing machine 3-1, Jing after husky bits removing machine 3-1 carries out solid-liquid separation, liquid phase well drilling waste mud enters many work(
Tank 3-2 can be adjusted, after infrequent menstruation amount dosing, stirring, water process regenerating device 3-7, Jing water process regenerating device 3-7 is pumped into by pump 3-5
After carrying out solid-liquid separation, the liquid phase of reuse standard is up to, is drained into the clear water working area of multi-functional regulation tank 3-2.According to existing
Liquid phase in the multi-functional clear water working area for adjusting tank can be prepared medicines by practical situation, or can be by being pumped into out
In software clean water tank 4, the liquid phase in software clean water tank 4 can be transmitted back to drilling team's mud system and carry out reuse, can also be kept in, etc.
Treat subsequent treatment.
Solid phase well drilling waste mud Jing after the first landwaste centrifuge for removing liquid and the second landwaste centrifuge for removing liquid carry out solid-liquid separation, enters
First order conveying worm, adds firming agent through firming agent addition machine 1-5, carries out conveying into second level conveying worm
Mixing in journey, then, the drilling team received into third level conveying worm and third level conveying worm inherently from
The solid phase well drilling waste mud given off by scheming 10, after carrying out the mixing in course of conveying, into fourth stage spiral transferring
The solid phase drilling well waste sludge Jing after husky bits removing machine 3-1 carries out solid-liquid separation for sending machine to receive with fourth stage conveying worm
Slurry, after carrying out the mixing in course of conveying, receives into level V conveying worm and level V conveying worm
Solid phase well drilling waste mud Jing after water process regenerating device 3-7 carries out solid-liquid separation, after carrying out the mixing in course of conveying,
It is transported to haulage vehicle 5 and waits subsequent treatment.
Example two is, using a kind of overall coherent processing equipment, to be easy to control when processing relative to the difference of example one
System.Example two when using the data essentially identical with table 1-3 can reach the effect essentially identical with example one, but can shorten operation
Time, reduce the workload of workman.
What each separation equipment is isolated in this patent density was larger is referred to as solid phase, and density is less to be referred to as liquid phase, and this is specially
In profit, alleged solid phase is not absolute solid phase, and liquid phase is nor absolute liquid phase, such as water process regenerating device 14 is separated
It is also likely to be moist soil or the sludge for having certain fluidity to go out solid phase.