Well drilling waste mud integrated processing system
Technical field
The present invention relates to a kind of well drilling waste mud treating apparatus.
Background technology
In petroleum natural gas exploration drilling process, vibrosieve in drilling facilities, desander, old mud device and centrifuge all can produce mud, these discarded slurries by solid phase, liquid phase and chemical treatments three part form, multinomial colloidal suspension system wherein containing a large amount of clay, weighting material, various chemical treatments, sewage, sump oil and drilling cuttings, if do not processed, immeasurable harm will be caused to natural environment.
The domestic processing mode to waste drilling fluid has three kinds at present: directly discharge, systemic circulation pond precipitation and solidification process.
(1) direct exhaust method
Some waste drilling fluid directly can be discharged in environment and go, but this is only limitted to low toxicity or nontoxic drilling fluid, or the drilling fluid discarded object of easily biological-degradable, and the method is not suitable for the higher oil base drilling fluid of harmful components and polymer class drilling fluid.
(2) the systemic circulation pond precipitation method
Waste drilling fluid is separated by natural sedimentation in systemic circulation pond, the top stillness of night reach environmental protection standard after discharge on the spot, remaining solid through natural drying landfill on the spot in circulatory pool, but must keep the thickness of upper soil horizon 1 meter to 1.5 meters.Through petroleum environments research committee, to landfill region surface water and radiation soil, tracking and monitoring is carried out by instruments such as neutron probe, lisimeters to the drilling fluid discarded object after landfill, find that the method has a significant impact surface water and radiation area soil, must be cautious use of.
(3) method of treated drilling fluid is solidified
Solidification method points in waste drilling fluid to add curing compound, it is made to be converted into soil or the very large solid of cementing strength, landfill or for constructional materials etc. on the spot, the method can to eliminate in drilling fluid heavy metal ion and organic matter to the impact of soil, water quality and ecological environment and harm.For the waste drilling fluid that water content is higher, in conjunction with solid-liquid isolation method, good effect can be obtained.Solidification method is the method for the most frequently used process well drilling waste mud at present.
This several mode all can not reuse, and causes potential impact to surrounding enviroment, adds environmental risk and cost pressure.
Summary of the invention
The technical problem to be solved in the present invention is: provide a kind of well drilling waste mud integrated processing system.
In order to solve the problems of the technologies described above, the present invention includes automatic classification collection module, multistage Separation of Solid and Liquid composite module and solid phase induction system, automatic classification collection module comprises landwaste centrifuge for removing liquid and the slurry can combination of multiple series connection, each landwaste centrifuge for removing liquid is connected slurry can with the liquid-phase outlet of landwaste centrifuge for removing liquid in slurry can combination, the slurry can that previous landwaste centrifuge for removing liquid and slurry can combine is connected the charging aperture of the landwaste centrifuge for removing liquid of a landwaste centrifuge for removing liquid and slurry can combination thereafter, multistage Separation of Solid and Liquid composite module comprises husky bits removing machine, multi-functional regulating tank and water treatment regenerating device, last slurry can connects the charging aperture of husky bits removing machine, multi-functional regulating tank comprises agent-feeding treatment district and clear water working area, the liquid-phase outlet of husky bits removing machine is communicated with the agent-feeding treatment district of multi-functional regulating tank, the agent-feeding treatment district of multi-functional regulating tank connects the charging aperture of water treatment regenerating device, the liquid-phase outlet of water treatment regenerating device connects the clear water working area of multi-functional regulating tank, the solid-phase outlet of each landwaste centrifuge for removing liquid and husky bits removing machine connects solid phase induction system, solid phase induction system is connected with curing compound adding machine.
For can meet drilling team's solid control equipment produce mud process can save cost again, described automatic classification collection module comprise two landwaste centrifuge for removing liquids and slurry can combination, be the first landwaste centrifuge for removing liquid and the first slurry can combination and the second landwaste centrifuge for removing liquid and the second slurry can combination.
Automatically precipitate in multipotency regulating tank to realize partial solid phase, described multi-functional regulating tank also includes sewage working area, overfall dam is provided with between sewage working area and agent-feeding treatment district, the liquid-phase outlet of husky bits removing machine connects sewage working area, the liquid-phase outlet of husky bits removing machine is communicated with agent-feeding treatment district by sewage working area, and sewage working area is connected by being with the bypass line of valve with the second slurry can.
In order to improve treatment effect, described landwaste centrifuge for removing liquid adopts vibrosieve, and husky bits removing machine adopts centrifuge, and water treatment regenerating device adopts folded spiral shell machine.
The first described slurry can and the second slurry can are formed by a tank body segmentation, weir divider is provided with in tank body, weir divider is lower than the tank skin of tank body, and the both sides of weir divider are respectively the first slurry can and the second slurry can, and the volume of the second slurry can is less than the first slurry can.The density of liquid phase that the first landwaste centrifuge for removing liquid that first slurry can is collected produces is greater than the liquid phase that the second landwaste centrifuge for removing liquid that the second slurry can collects produces, when the liquid measure that the first slurry can and the second slurry can receive discarded slurry is suitable, because the second slurry can volume is less than the volume of the first slurry can, when the second landwaste centrifuge for removing liquid discarded slurry of collecting of second slurry can is too much, the first slurry can only be overflowed to, the discarded slurry that the first landwaste centrifuge for removing liquid that first slurry can is collected discharges, can not overflow to the second slurry can.
In order to emergency processing, also include emergent storage tank and liquid level automatic compensating controller, the first delivery pump is provided with in first slurry can, the second delivery pump is provided with in emergent storage tank, first delivery pump outlet connects the charging aperture of emergent storage tank and the second landwaste centrifuge for removing liquid respectively by the pipeline with electrically operated valve, second conveying delivery side of pump connects the charging aperture of the first landwaste centrifuge for removing liquid by pipeline, liquid level detection device is provided with in first slurry can, liquid level detection device, first delivery pump, second delivery pump and electrically operated valve are all connected with liquid level automatic compensating controller, liquid level automatic compensating controller is used for the signal of receiving liquid level detecting apparatus and controls the first delivery pump, the keying of the second delivery pump and electrically operated valve.When the liquid level in the first slurry can reach a certain height, liquid level automatic compensating controller automatically can start the first delivery pump and liquid phase is squeezed into emergent storage tank by corresponding electrically operated valve, when in the first slurry can, liquid level is reduced to certain value, liquid level automatic compensating controller can start the second delivery pump automatically, liquid phase is directly got to the charging aperture of the first landwaste centrifuge for removing liquid.When the first slurry can liquid level is between aforementioned two kinds of liquid levels, liquid level automatic compensating controller automatically can start the first delivery pump and liquid phase is squeezed into the second landwaste centrifuge for removing liquid by corresponding electrically operated valve.
In order to evening is easy to use and prevent solid phase to be gathered in slurry can, in described all slurry cans, be equipped with agitator and LED explosion-proof illuminating lamp, husky bits removing machine is provided with LED explosion-proof illuminating lamp.
For the ease of adding sewerage treatment with medicament, described multistage Separation of Solid and Liquid composite module also includes chemicals feeder, the water inlet of chemicals feeder connects the clear water working area of multi-functional regulating tank by pump, the discharging opening of chemicals feeder meets the agent-feeding treatment district of multi-functional regulating tank, and clear water working area is connected with clean water tank.Water in clean water tank can reuse.
In order to make sewerage treatment with medicament mix with sewage, in the agent-feeding treatment district of described multi-functional regulating tank, be provided with agitator.
For the ease of conveying solid phase, described solid phase induction system comprises the first conveyer, second conveyor, the 3rd conveyer, the 4th conveyer and the 5th conveyer of connecting successively, five conveyers are conveying worm, first conveyer is connected by curing compound adding machine with second conveyor, the solid-phase outlet of all landwaste centrifuge for removing liquids connects the first conveyer, the solid-phase outlet of husky bits removing machine connects the 4th conveyer, and the solid-phase outlet of water treatment regenerating device connects the 5th conveyer.
The invention has the beneficial effects as follows: the present invention a set ofly integrates slurry collecting, storage, Separation of Solid and Liquid, slurries purification, solid phase conveying and the multi-functional high-end dumping mud treatment combined system such as cured in place, liquid phase reuse thereof, scientificlly and effectively can carry out classification to the discarded slurry in drilling well drilling process to divide and rule, achieving the innovation mode with boring with solidification, having filled up the domestic blank of this aspect.Present invention achieves the minimizing of hazardous waste disposal, innoxious and resource, eliminate pollution sources, be conducive to soil and the groundwater resources of protecting well site surrounding enviroment.After the present invention carries out multistage Separation of Solid and Liquid to well drilling waste mud, solid phase can go out well site by transport vehicle transports, carries out subsequent treatment, and liquid phase can be recycled in drilling mud system and reuse, to reduce the discharge of hazardous substances.The processing mode of one aspect of the present invention by dividing and ruling, can greatly reduce the use of solidification medicament, thus fundamentally reduces the discharge of harmful solid phase; Another aspect owing to carrying out Separation of Solid and Liquid when not adding curing compound, greatly can improve the reclamation rate of the rear liquid phase of process like this, thus fundamentally realizing the minimizing of discarded slurry in processing procedure.
Accompanying drawing explanation
Fig. 1 is 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 Separation of Solid and Liquid composite module, 4. software clean water tank, 5. haulage vehicle, 6. combined emergency storage tank, 1-1. first landwaste centrifuge for removing liquid, 1-2. first slurry can, 1-3. second slurry can, 1-4. second landwaste centrifuge for removing liquid, 1-5. curing compound adding machine, 1-6. liquid level detection device, 1-7. valve, 1-8. pump, 1-9.LED explosion-proof illuminating lamp, 1-10. agitator, 3-1. sand bits removing machine, the multi-functional regulating tank of 3-2., 3-3. valve, 3-4. agitator, 3-5. pump, 3-6. chemicals feeder, 3-7. water treatment regenerating device, 3-8.LED explosion-proof illuminating lamp, 7, vibrosieve, 8, desander, 9, desilter, 10, centrifuge.
Detailed description of the invention
A kind of specific embodiment as shown in Figure 1, it comprises automatic classification collection module 1, solid phase induction system 2, multistage Separation of Solid and Liquid composite module 3 and software clean water tank 4.
As shown in Figure 2, automatic classification collection module 1 comprises the first landwaste centrifuge for removing liquid 1-1, the first slurry can 1-2, the second slurry can 1-3, the second landwaste centrifuge for removing liquid 1-4, curing compound adding 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 is formed by a tank body segmentation, weir divider is provided with in tank body, weir divider is lower than the tank skin of tank body, the both sides of weir divider are respectively the first slurry can 1-2 and the second slurry can 1-3, and the volume of the second slurry can 1-3 is less than the first slurry can 1-2.
Agitator 1-10, LED explosion-proof illuminating lamp 1-9 and pump 1-8 is equipped with in first slurry can 1-2 and the second slurry can 1-3, the liquid-phase outlet of the first landwaste centrifuge for removing liquid 1-1 meets the first slurry can 1-2, the charging aperture of the second landwaste centrifuge for removing liquid 1-4 meets the first slurry can 1-2, and the liquid-phase outlet of the second landwaste centrifuge for removing liquid 1-4 meets the second slurry can 1-3.
Also include emergent storage tank 6 and liquid level automatic compensating controller, the first delivery pump is provided with in first slurry can 1-2, i.e. pump 1-8, the second delivery pump is provided with in emergent storage tank 6, first delivery pump outlet connects the charging aperture of emergent storage tank 6 and the second landwaste centrifuge for removing liquid 1-4 respectively by the pipeline with electrically operated valve (in Fig. 2 valve 1-7), second conveying delivery side of pump connects the charging aperture of the first landwaste centrifuge for removing liquid 1-1 by pipeline, liquid level detection device 1-6 is provided with in first slurry can 1-2, liquid level detection device 1-6, first delivery pump, second delivery pump and electrically operated valve are all connected with liquid level automatic compensating controller, liquid level automatic compensating controller is used for the signal of receiving liquid level detecting apparatus and controls the first delivery pump, the keying of the second delivery pump and electrically operated valve.
As shown in Figure 3, multistage Separation of Solid and Liquid composite module 3 comprises husky bits removing machine 3-1, multi-functional regulating tank 3-2, valve 3-3, agitator 3-4, pump 3-5, chemicals feeder 3-6, water treatment regenerating device 3-7 and LED explosion-proof illuminating lamp 3-8.LED explosion-proof illuminating lamp 3-8 is arranged on husky bits removing machine 3-1.Multi-functional regulating tank 3-2 comprises sewage working area, agent-feeding treatment district and clear water working area, overfall dam is provided with between sewage working area and agent-feeding treatment district, clear water working area and sewage working area and agent-feeding treatment district isolated, the liquid-phase outlet of husky bits removing machine 3-1 connects the sewage working area of multi-functional regulating tank 3-2, agitator 3-4 and pump 3-5 is provided with in the agent-feeding treatment district of multi-functional regulating tank 3-2, the agent-feeding treatment district of multi-functional regulating tank 3-2 connects the charging aperture of water treatment regenerating device 3-7 by pump 3-5, the liquid-phase outlet of water treatment regenerating device 3-7 connects the clear water working area of multi-functional regulating tank 3-2, the clear water working area of multi-functional regulating tank 3-2 connects software clean water tank 4 by pump.The water inlet of chemicals feeder 3-6 connects the clear water working area of multi-functional regulating tank 3-2, and the discharging opening of chemicals feeder 3-6 meets the agent-feeding treatment district of multi-functional regulating tank 3-2.The sewage working area of multi-functional regulating tank 3-2 meets the second slurry can 1-3 by the bypass line of band valve 3-3.
The charging aperture of husky bits removing machine 3-1 meets the second slurry can 1-3.
The solid control equipment involving vibrations sieve 7 of well system, desander 8, desilter 9 and centrifuge 10.
The slurry outlet of vibrosieve 7 meets the first landwaste centrifuge for removing liquid 1-1, and the slurry outlet of desander 8 and desilter 9 all meets the second landwaste centrifuge for removing liquid 1-4.
Solid phase induction system comprises the first conveyer, second conveyor, the 3rd conveyer, the 4th conveyer and the 5th conveyer of connecting successively, five conveyers are conveying worm, first conveyer is connected by curing compound adding machine 1-5 with second conveyor, 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, the solid-phase outlet of husky bits removing machine 3-1 connects the 4th conveyer, and the solid-phase outlet of water treatment regenerating device 3-7 connects the 5th conveyer.Solid phase is seen off from the outlet of the 5th conveyer by haulage vehicle 5.
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, the first slurry can 1-2 and combined emergency storage tank 6, second slurry can 1-3 and sand are considered removing machine 3-1, multi-functional regulating tank 3-2 and water treatment regenerating device 3-7 to be worth doing and are equipped with pump between multi-functional regulating tank 3-2 and software clean water tank 4, thus can accelerate the flowing of liquid phase.
Two landwaste centrifuge for removing liquids adopt vibrosieve, preferably adopt high G vibrosieve, and husky bits removing machine adopts centrifuge, and water treatment regenerating device is sludge dewatering equipment, and sludge dewatering equipment can adopt folded spiral shell machine.
What in this patent, the isolated density of each separation equipment was larger is called solid phase, what density was less is called liquid phase, solid phase alleged in this patent is not absolute solid phase, liquid phase neither be absolute liquid phase, such as water treatment regenerating device 14 to isolate solid phase also may be moist earth or the mud having certain fluidity.
6, basic procedure and explanation(as shown in Figure 1, Figure 2, Figure 3 shows)
:
This device mainly can realize following basic procedure in running:
(1) liquid phase flow process:
1) normal plasma discharge:
Clear water working area → software clean water tank 4 → the reuse of the agent-feeding treatment district → water treatment regenerating device 3-7 → multi-functional regulating tank 3-2 of the sewage working area → multi-functional regulating tank 3-2 of 1.: drilling team's intrinsic vibration sieve 7 → the first landwaste centrifuge for removing liquid 1-1 → the first slurry can 1-2(liquid levels remain between setting high level 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 regulating tank 3-2, when the first slurry can 1-2 is lower than setting low value, control combination meets an urgent need storage tank 6 to the first landwaste centrifuge for removing liquid 1-1 fluid infusion.
2.: the clear water working area → software clean water tank 4 → reuse of the agent-feeding treatment district → water treatment regenerating device 3-7 → multi-functional regulating tank 3-2 of the sewage working area → multi-functional regulating tank 3-2 of the intrinsic desander of drilling team 8, desilter 9 → the second landwaste centrifuge for removing liquid 1-4 → the second slurry can 1-3 → sand bits removing machine 3-1 → multi-functional regulating tank 3-2
2) for starching, meeting an urgent need: first drilling team's intrinsic vibration sieve 7 is received the first slurry can 1-2.
Drilling team intrinsic vibration sieve 7 → the first slurry can 1-2, when the first slurry can 1-2 reaches the clear water working area → software clean water tank 4 → reuse of the agent-feeding treatment district → water treatment regenerating device 3-7 → multi-functional regulating tank 3-2 of the sewage working area → multi-functional regulating tank 3-2 of setting high level → combined emergency storage tank 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 → sand bits removing machine 3-1 → multi-functional regulating tank 3-2
In whole processing procedure, control the liquid level of the first slurry can and the second slurry can, make to only have the second slurry can to the first slurry can overflow, and the first slurry can is not to the second slurry can overflow.
(2) solid phase flow process:
1.: the first landwaste centrifuge for removing liquid 1-1 and the second landwaste centrifuge for removing liquid 1-4 → solid phase induction system 2 → haulage vehicle
2.: the intrinsic centrifuge 10 → conveying worm → haulage vehicle of drilling team
3.: husky bits removing machine 3-1 and water treatment regenerating device 3-7 → solid phase induction system 2 → haulage vehicle
Process description:
The liquid phase well drilling waste mud that the drilling team's intrinsic vibration sieve 7 collected by the first landwaste centrifuge for removing liquid 1-1 is discharged, after the first landwaste centrifuge for removing liquid 1-1 carries out Separation of Solid and Liquid, liquid phase well drilling waste mud enters the first slurry can 1-2; Liquid phase well drilling waste mud in first slurry can 1-2 is pumped into the second landwaste centrifuge for removing liquid 1-4 by pump, come from the intrinsic desander 8 of drilling team, liquid phase well drilling waste mud that desilter 9 is discharged also enters the second landwaste centrifuge for removing liquid 1-4, after the second landwaste centrifuge for removing liquid 1-4 Separation of Solid and Liquid, 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 is extracted into husky bits removing machine 3-1 by pumping into, after sand bits removing machine 3-1 carries out Separation of Solid and Liquid, liquid phase well drilling waste mud enters multi-functional regulating tank 3-2, after a small amount of dosing, stirring, water treatment regenerating device 3-7 is pumped into by pump 3-5, after water treatment regenerating device 3-7 carries out Separation of Solid and Liquid, will the liquid phase of reuse standard be reached, be drained into the clear water working area of multi-functional regulating tank 3-2.According to on-site actual situations, liquid phase in the clear water working area of multi-functional regulating tank can be prepared medicines, or can go out in software clean water tank 4 by pump suction, the liquid phase in software clean water tank 4 can be transmitted back to drilling team's mud system and carry out reuse, also can keep in, wait for subsequent treatment.
The solid phase well drilling waste mud after Separation of Solid and Liquid is carried out through the first landwaste centrifuge for removing liquid and the second landwaste centrifuge for removing liquid, enter first order conveying worm, curing compound is added through curing compound adding machine 1-5, enter the mix and blend that second level conveying worm carries out in course of conveying, then, enter the solid phase well drilling waste mud that the intrinsic centrifuge 10 of drilling team that third level conveying worm and third level conveying worm receive gives off, after carrying out the mix and blend in course of conveying, enter that fourth stage conveying worm and fourth stage conveying worm receive through sand consider to be worth doing removing machine 3-1 carry out Separation of Solid and Liquid after solid phase well drilling waste mud, after carrying out the mix and blend in course of conveying, what enter that level V conveying worm and level V conveying worm receive carries out the solid phase well drilling waste mud after Separation of Solid and Liquid through water treatment regenerating device 3-7, after carrying out the mix and blend in course of conveying, be transported to haulage vehicle 5 and wait for subsequent treatment.