RU8269U1 - PLANT FOR PROCESSING INDUSTRIAL AND BARN TRAP EMULSIONS - Google Patents

Abstract

1. Installation for processing industrial layers and barn trap emulsions, including a tank-settler connected in series with a pipeline to the inlet and outlet pipelines, a pump and a demulsifier dispenser, characterized in that the installation is additionally equipped with a heater and a unit for destroying the armor shells - a Venturi tube connected sequentially between the demulsifier dispenser and the inlet of the settling tank, and the settling tank is equipped with vertical risers of different heights, of which at least it has at least three risers - receiving, and at least three risers - intake, and all receiving risers are connected to the inlet pipe, and all intake risers are connected to the outlet pipe, while each of the receiving risers and each of the intake risers is installed with the possibility of alternating connection in a closed cycle with simultaneous cross or parallel inclusion in a closed cycle of different-height receiving and intake risers. 2. The installation according to claim 1, characterized in that, in order to resolve industrial layers and emulsions with a high content of iron sulfide more than 300 mg / l, it further comprises a reagent dispenser for breaking iron sulfide installed between the heater and the venturi.

Description

INSTALLATION FOR OEPAEOTKI I WATER LAYERS AND BARN TRAP EMULSIONS The utility model relates to the field of oil production, in particular, to installations for processing industrial layers and barn trap emulsions, and can be used in oil producing and oil-refining emulsions, which are difficult to develop.

At oil-producing enterprises in oil-processing plants, when the primary, initial oil-water emulsion is destroyed, in addition to oil and water, an intermediate emulsion layer is formed, which is a persistent highly concentrated secondary emulsion (industrial layer). This industrial layer is usually poured into storage barns. All kinds of oil pollution from technological sites, leaks from oil seals of pumps, control and sampling valves, oil-containing soil residues during the liquidation of the consequences of accidental oil spills, etc. also enter the same storage barns-storage tanks. The mixture formed in such storage barrels is called oil and water barn trapping emulsion. It contains a large number of natural emulsifiers and mechanical impurities, as a result of which it is the most (goyka and difficult to destroy from all water-oil emulsions.

IPC BOID17 / 00 C 10 G 33/04

oil heater, mixer, device for atheistic coalescence, filter, separation tank (sedimentation tank), a pipeline of water separated in the separation tank, and a demulsifier dispenser. Moreover, the oil heater and mixer are installed sequentially after the block of water supply. And the filter is located after the device for A1D static coalescence, while the pipeline through the demulsifier dispenser is connected to the water supply unit (see AS USSR No. 1 502 044, class VOYU 17/00, from 1987).

However, this known installation requires significant metal consumption and a large number of pieces of equipment.

In addition, due to the pumping of water on the day of increasing the water cut of trap oil, energy costs increase significantly. All this reduces the efficiency of the known installation.

The closest in technical (validity to the claimed technical solution) is an installation for breaking the intermediate emulsion layer, which includes a process tank (RVS) connected in series with the pipeline to the inlet and outlet pipelines, a demulsifier dispenser, a centrifugal substandard oil pump and an end separation unit (KSU) (see RF patent MQ 2017792, CL CIOG 33/04, from 1991).

The specified known installation works as follows. The creep layer (industrial layer) is taken from a height of b m and the centrifugal pump is pumped in a closed cycle according to the RBC-pump {KSU-RVS scheme, moreover, the emulsion treated with dek / shgging composition is returned through the mother liquor to the water stream, where washing and further settling takes place. The disadvantage of this known installation is its lack of effectiveness in the processing of granary, hard-to-break emulsions, especially those containing a large amount of iron sulfide. In the destruction of such emulsions using the known installation, an increased consumption of demulsifier is required - at least 300 - 350 g / g. And even with Such an increased flow rate of the demulsifier, the sludge time in this known installation is 4-5 days, and only during this time the production of conditioned oil is ensured. ate is to improve processing efficiency while snyukenii deemupgatora flow. The goal is achieved by the fact that in the known processing apparatus for promsloev and granary trapped emulsions comprising

the settling tank with the inlet and outlet piping, the demulsifier pump and dispenser, it is new that the installation is additionally equipped with a heater and the destruction unit of the armor shells - a Venturi tube connected in series between the demulsifier dispenser and the inlet of the settling tank, and the settling tank is equipped with vertical risers of different heights, of which at least three risers are receiving and at least three (goyak are intake, and all receiving risers are connected to the inlet pipe, and the entire fence s risers are connected to the outlet conduit, each of the receivers (ggoyakov and each of the intake risers mounted vozms knostyu alternately under shyucheniya in closed loop, while the cross or parallel connection in a closed loop and receiving raznovysotnyh intake risers.

In addition, for the purpose of breaking emulsions with an iron sulfide content of more than 300 mg / p, the unit additionally supplies 1 with a dosing agent for the day of destruction of iron sulphide.

Thanks to the current / that the installation is equipped with a heater, an increase in the temperature of the hard-to-break emulsion is provided. This allows you to reduce its viscosity. And due to the fact that the heater is installed in front of the Veshuri tube, the process is accelerated

coagulation of water in this node and the difference in the density of oil and water increases, which leads to an increase in the sedimentation rate and a decrease in the strength of the armor shells due to the weakening of molecular bonds.

And due to the fact that the installation is equipped with a venturi, through which the emulsion with the demulsifier passes already heated,

Intensive discharging of armor shells is provided.

particles of ecgulsion due to the passage of droplets in the discharge zone, and thus the thermodynamic equilibrium of the particles of the emulsion is violated, which ensures, at a lower consumption of the demulsifier, the high destruction efficiency of the persistent action and the process efficiency.

And due to the fact that the tank-settler is equipped with vertical risers of different heights, each of which is installed with the possibility of alternating connection in a closed loop, while at the same time cross-linking or parallel switching in the closed loop of various height receiving and intake risers

uniform layered heating of the emulsion is achieved, eliminated

formation of stagnant zones in the settling tank and is ensured

the ability to pass the entire full volume (all amount) of the emulsion being destroyed in a closed cycle through a dispenser, heater. Veshuri tube, As a result of which tayuku increases the efficiency of the process. The inventive installation is illustrated, where figure 1 shows a General diagram of the installation and figure 2 section aa in figl. The installation (figL) contains a settling tank I, with inlet 2 and outlet 3 pipelines with a drain for pumping oil to consumer 4 and a water view pipe 5-; pump 6; dispenser for dispenser 7, consisting of two containers: one for a water-soluble demulsifier, and the second for an oil-soluble dispenser; heater 8 and a venturi 9 connected to the inlet pipe 2. The sump tank 1 has additional vertical risers of which four risers 0, 11 12, and 13 are receiving pipes connected to the pipe 2 by means of the backflow valves 18 (FIG. 2 and FIG. 2) and four risers 14 15 16 and 17 are intake pipes connected to the pipeline 3 by means of valves 19. In case of destruction of E1 with a content of iron sulfide of more than 300 mg / l, the installation additionally contains a reagent dispenser for the destruction of iron sulfide installed by a heater and a tube oh Venturi. Installation works as follows. The industrial layer or barn emulsion located in the tank sump I through the riser 17 through the pipe 3 is taken by the pump 6. At this time, a water-soluble dumugtator is fed into the pipe 3 from the dispenser 7. Further, with the dealers

shells of particles of the emulsion. And further along the pipeline; 2 through the intake riser 10, which can be crossed over to the intake riser 17, the emulsion enters the settling tank I. And in this way the emulsion is pumped four times in a closed cycle, changing both the intake and intake risers in each cycle, namely, when introduced into the intake riser 16 the emulsion, having passed the entire technological scheme, returns to the settling tank 1 through the receiving riser 11; when the intake riser 15 through the receiving riser 12; when the intake riser 14 through the receiving riser 13. Moreover, in the third and fourth cycle, an oil-soluble d-mulgator is fed into the emulsion. Moreover, the amount of water-soluble and oil-soluble desiccant introduced into the emulsion is significantly less than in known installations, which is explained by the design features of the proposed technological scheme (the presence of a Veshuri tube after the heater) and the special design of the settling tank. The dosage of the demulsifier is carried out by feeding into the emulsion no more than 15 - 25 t1t in one cycle.

With a large content in the action of iron sulfide, a reagent of the day of destruction of iron sulphide is added to it.

The implementation of the process of destruction of the industrial layer and barn trap emulsion according to the proposed technological scheme ensures uniform heating of the entire volume of water to the required temperature + 65 4-80 ° C. Then, the heated emulsion is sedimented in the settling tank 1 for no more than one day. Settled oil is flowed through TAP 4 to the Tank of Oil

water separated through pipe 5 into the wastewater collection and treatment system.

The proposed installation allows to increase the processing efficiency of hard-to-break emulsions (industrial layers and barn trap ecgssies), including those containing a large amount of iron sulfide, ensuring the production of conditioned oil, reduce demulsifier costs by at least 30%, and also reduce energy and time spent on processing.

Head of Sekgor of Patent Licensing Work of PermNYIPIneft OJSC /A...U.T.A. Yushkina

December 30, 1997

Claims (2)

1. Installation for processing industrial layers and barn trap emulsions, including a tank-settler connected in series with a pipeline to the inlet and outlet pipelines, a pump and a demulsifier dispenser, characterized in that the installation is additionally equipped with a heater and a unit for destroying the armor shells - a Venturi tube connected sequentially between the demulsifier dispenser and the inlet of the settling tank, and the settling tank is equipped with vertical risers of different heights, of which at least it has at least three risers - receiving, and at least three risers - intake, and all receiving risers are connected to the inlet pipe, and all intake risers are connected to the outlet pipe, while each of the receiving risers and each of the intake risers is installed with the possibility of alternating connection in a closed cycle with simultaneous cross-sectional or parallel inclusion in a closed cycle of different-height receiving and intake risers. 2. Installation according to claim 1, characterized in that, in order to resolve industrial layers and emulsions with a high content of iron sulfide more than 300 mg / l, it further comprises a reagent dispenser for breaking iron sulfide, installed between the heater and the venturi.