The cleaning system of drilling wastewater

 

(57) Abstract:

Usage: for drilling wastewater in oil prospecting and oil drilling. The inventive system includes sequentially connected site wastewater collection, separation unit of the solid phase, the cleaning unit, the unit of collection and processing of sediment storage capacity for treated process water and at least three electrodialyzer with electrically-controlled valves connected through the control unit with sensor salinity mounted to the vessel for the purified process water, and the cleaning unit is made of communicated between the unit air preparation, ozone generator and contact camera connected to a separation unit of a solid phase and a block of collection and processing of sediment, the latter consists of two filters, equipped with a washing system, connected to the separation unit of the solid phase. The system has an effective purification and meets environmental requirements. 1 Il.

The invention relates to the cleaning of drilling wastewater during drilling and can be used in oil prospecting and oil drilling.

The traditional system is similar to Kaznacheyev, representing the United pits, do not meet environmental requirements, as is the filtration of wastewater into the soil, evaporation of hydrocarbons, increases the degree of pollution of surface and groundwater [1]

Known purification system waste water drilling, which is the closest to the claimed object containing communicated between a host of wastewater collection, separation unit of the solid phase, the cleaning unit including the unit of chemical coagulation and block parascardolo defend, block collection and processing of sediment capacity for purified process water [2]

The disadvantage of this system is the relatively high cost and scarcity of used coagulants, additionally, the system has a low cleaning efficiency as generate significant amounts of precipitation, high humidity, trudnootdelema dehydration and require before returning into the circulation system of additional processing chemical reagents, all associated with transportation and storage of coagulants and chemicals, which also reduces the ecological system.

A disadvantage of the known system is that it does not provide complete cleaning (the country: Russia vain.

The basis of the invention is to create a wastewater treatment system rig with a more effective degree of cleanup that satisfies environmental requirements.

This task is solved in that in the system of drilling wastewater containing connected in series site wastewater collection, separation unit of the solid phase, the cleaning unit, the unit of collection and processing of sediment storage capacity for treated process water, according to the invention, the treatment unit consists of a communicated between the unit air preparation, ozone generator, contact camera connected to a separation unit of a solid phase and a block of collection and processing of deposits made in the form of two filters with wash system, connected to the separation unit of the solid phase. In addition, it is advisable that after the vessel for the purified process water were installed at least three electrodialyzer with electrically-controlled valves connected through the control unit with sensor salinity mounted to the vessel for the purified process water.

Use as a treatment unit ozonation systems due to the high reactivity of ozone, with benefits per the of anitelea with the height of efficiency.

The connection of the flushing system filters block solids separation eliminates the discharge of wet precipitation.

Three electrodialyzers after you installed capacity for purified process water provides clean water corresponding to GOST 2877-82 "drinking Water" (with adjustable stiffness). Equipment electrically operated valves connected through the control unit with sensor salinity, allows you to connect the required number of electrodialyzers and depending on the degree of salinity of water.

The invention is further illustrated by the drawing, which shows a conventionally purification system of drilling wastewater, according to the invention.

The cleaning system of drilling wastewater includes connected in series site 1 wastewater collection, made for example in the form of capacity. Unit 2 separation of the solid phase, this unit can be used centrifuge, the cleaning unit 3, comprising communicated between an air preparation unit 4, the ozone generator 5 and at least one contact chamber 6 installed between the block 2 separation of solids and block 7 of the collection and processing of sediment, including two filters 8 and 9 and 10 washing the filter 8 and 9 is connected to the tank 18 for purified process water, after the tank 18 is installed at least three electrodialyzer 19 21 electrically-controlled valves 22 and 26 connected through the block 27 of the control sensor 28 degrees of salinity, placed in the vessel 18 for purified process water.

The cleaning system of drilling wastewater works as follows.

Drilling waste water generated during the execution of various technological operations, mechanisms, and devices, are collected in site 1 wastewater collection, then sent in block 2 of the separation of the solid phase, where the solid dehydrated wastes are discharged, and the centrate water from unit 2 enters the contact chamber 6, where it is mixed with ozonopause mixture supplied from the ozone generator 5, which is in the process of electrosynthesis of ozone. As a result of oxidation of the impurities contained in the centrate ozonopause the mixture is formed flocculent sludge, sorption on the surface of metal oxides and unreacted ozone is removed in the upper part of the chamber 6. Then processed ozonopause mixture centrate flows alternately in one of the filters 8 and 9, block 7 collection and processing of sediment in the filtering process is removed from the liquid flocculent sludge generated AC 11, the valve 12 is in the closed position, the treated water is supplied to the filter 8, filtered, the valve 13 is closed, the valves 15, 17 are open filtered water enters the tank 18 for purified process water, if the valves 15, 17 are closed and open valves 13, 14, the filtered water is fed to the rinsing of the filter 9, washes formed there and concentrate enters the block 2 separate solid phase. In operation of the filter 9 are open, the valves 12, 16, 17, and valves 11, 13, 14 are closed, the water enters the tank 18. For washing of the filter 8 when filter 9 are opened, the valves 12 and 14, and closes 11, 15, 16, 17.

From the tank 18 to the purified process water water arrives for technological needs: for the preparation of drilling mud, for consumption auxiliary and utility industries, wash production sites and equipment and so forth. For further purification of process water enters electrodialyzer 19 and depending on the magnitude of the degree of salinity measured by the sensor 28 installed in the tank 18, the signal through the control block 27 is fed to the electrically-controlled valves 23, 25 and they are opened and water is supplied to the electrodialyzers 20 and 21 for dal is it reduces the degree of salinity of the water about 50 g/l, therefore, when fixing the sensor 28 to the degree of salinity of no more than 50 g/l has one electrodialyzer 19 and only open valves 22 and 23. If the degree of salinity exceeds 50 g/l, open valves 22,23, 26 and work electrodialyzers 19, 20. When the degree of salinity in excess of 100 g/l open the valve 22,23,25 and operates three electrodialyzer 19 21. Get a water (GOST 2877-82 "drinking Water").

The cleaning system of drilling wastewater containing connected in series site wastewater collection, separation unit of the solid phase, the cleaning unit, the unit of collection and processing of sediment storage capacity for treated process water, wherein the cleaning unit comprises communicated between the unit air preparation, ozone generator and contact camera connected to a separation unit of a solid phase and a block of collecting and processing sediment, made in the form of two filters with wash system, connected to the separation unit of a solid phase, in addition, after the vessel for the purified process water is additionally installed at least three electrodialyzer with electrically-controlled valves connected through the control unit with sensor salinity established in the

 

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FIELD: training tools and devices for the training process.

SUBSTANCE: the invention is dealt with the field of training tools and devices for the training process, in particular, with research of engineering and technology of the automated water supply systems, automatic control of a water supply system in a training process using engineering tools of the new information technologies of training. The multifunctional automated complex training-research laboratory consists of blocks connected in series and-or in parallel through intermediate tanks and devices of water-pump over and a water purification. The laboratory has a pumping plant of the first water rise connected by pressure conduits with chambers of switching with an intermediate tank of influent water, which through a pumping plant of the second water rise is interconnected with the technological apparatuses and blocks of the automated plant of the water purification including a block of clarification of water by settling, consisting of a chamber of a flocculation, a horizontal settler, a block of a reactant system, a block of a clarification of water in a suspension layer, including an air separator connected with a clarifier containing a suspended slurry bed, a block of a water clarification by filtration, that consists of a non-pressure fast and a pressure fast or ultra-speed filter with an intermediate tank of a clarified water, which through the pumping plant of the second water rise is connected to the apparatus of disinfection of water and is connected with an intermediate tank of purified water. The laboratory has an automated system of control over technological processes and a supervisory console with use of a PC and a symbolic circuit. The technical result is creation and implementation in the training-research process of the multifunction automated complex training-research laboratory operating in conditions of model engineering of real water supply systems.

EFFECT: the invention presents a created and introduced multifunction automated complex training-research laboratory operating in the real water supply systems.

18 cl, 7 dwg

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