SU352928A1 - INSTALLATION FOR CLEANING OIL FROM GAS AND PLAST WATER - Google Patents

Description

The plant for the purification of oil from gas and formation waters is intended for the treatment of crude oil at the field itself and can be used in the oil industry as an installation for the commercial preparation of oil.

The stationary installations for the commercial preparation of oil are known, which are complex in design and require the use in the technological cycle of terminal structures providing gas separation processes. In addition, block demulsifiers with heating are also known.

However, their design solutions provide commercial preparation of oil without taking into account the possibility of carrying out demulsification in pipelines, which causes a constructive complication and decrease in efficiency in the industrial application of known devices.

In order to eliminate the above disadvantages, the installation for cleaning oil from gas and produced water is provided with a dropping agent, spaced between the compartments of preliminary gas separation and preliminary dehydration, and the hot ires water supply unit in the compartment of preliminary dehydration, the coaler being designed as a package of partitions, of which, alternately, one reaches the top, and the other - to the bottom of the technological capacity, and the number of partitions and the distance between them is chosen based on the odneni feed and plant capacity.

The drawing shows a diagram of an installation for refining oil from gas and formation water.

The installation consists of a process tank / divided into compartments of preliminary gas separation 2, preliminary dehydrated 1 3, deep dehydration 4 and terminal gas separation 5. The preliminary gas separation compartment contains a separation device 6, an input device 7, water

a cushion 8, a gas preheater 9 and a core-forming 10. Pre and deep dewatering compartments are formed by distributors and and 12, made as an angular structure from a vertical partition and perforated flooring, and free partitions 13 and 14. In the pre-dehydration compartment, a hot supply unit is mounted fresh water 15, and in the deep dehumidification compartment - a coalescing filter 16, filled with a coalescing load (iapri.mer, broken or figured glass, wood chips, etc.) or made of coalescing material. The end gas separation compartment contains an installation. The installation also contains level controllers 18, controllers for the interfacial level 19, tazo-dehydration 20 connected to the ejector 21, and the flow meters 22. operates as follows. Crude oil with gas and liquid water is pumped from production facilities or from stationary stations through a filter from mechanical impregnations to the process tank / to the senaration unit 6 of the preliminary gas-gas installation 2. In the notes of crude oil at the indicated facilities there is a demulsifier unit. The joint motion of pipelines of a mixture of crude oil and reagent and a resultant intensive destruction of the emulsion and the water globules due to the action of the reagent and the turbulent flow regime of the gas-liquid mixture. The passage of the filter from mechanical impurities and separation device 6 by the liquid together with the gas evolution process and attenuates the destruction of the emulsions. The partially degassed water-gas-oil connection by the input device 7 is fed under the water nodushka 8 of the preliminary gas-sensing compartment 2, where it is heated by the heater .9 to the required temperature depending on the physicochemical properties of the oil being processed. Pagret water-gas-oil to the mixture from the upper layers enters the co-former. The movement of water and gas mixture along the cauluating agent 10 increases the efficiency of the effect of heat and reagent and additional turbulization of fluid flow on the process of demulsification. Then, the water-gas-oil mixture is distributed dispersedly supplied by the distributor 11 under the water cushion 8 of the preliminary dewatering compartment 3, where the main amount of nlastic water is separated by flushing and contacting the water with free water at the water-emulsion interface. The destruction of the emulsion continues as it moves through the liquid column due to the bubbling of the gas emitted from the oil. Freshwater is fed to the flow by the feed unit 15, which provides desalting of the oil with additional heating of the liquid flow. From the upper layers, the partially dehydrated and desalted oil enters through the partition 13 and the dispenser 12 with a coalescing filter 16 into the compartment of deep dehiscence 4 under the water cushion 8 Prn by a significant decrease in the speed of movement of the emulsion. The impact of coalescing filter loading 16 and repeated washing with free water at zero gravity forces provide deep dehydration of the oil. From the upper layers, through the non-enclosure 14, the oil enters the gas compartment terminal 5 at the separation device 17. In the gas separation compartment, the oil is completely degassed and is passed to the consumer. The recovery of oil from or pumped out by the pump is controlled by a level 18 control team. The postmission of crude oil to the sump is regulated by a level regulator 18, which acts on an additional mechanism installed on the gas manifold or on an additional mechanism installed on the inlet pipe. After separating gas 1 from the compartments 2, the precursor of the 1st and terminal gas flow 5 through the gas dryer 20 by the ejector 21 is passed to the consumer. The reservoir water from the preliminary and deep dewaxing compartments is automatically drained by an interfacial level 19 command to the team. Subsequently, the silt water is cleaned, ayte and used for injection into the reservoir. The water level of the cushion 8 of the gas pre-gasification compartment is maintained at the interfacial level regulator 19, and the excess produced water is supplied under the distributor 11. The flow meters 22 take into account the production of the settling tank with automatic registration of measurements and transfer to the dispatcher of the regional engineering service. The number and sizes of installations are selected depending on the water content of the raw material and the amount of produced fluid at the production site. If necessary, depending on the physicochemical properties of the oil, an additional supply of the reagent and recirculation of the drained ballast water into the crude oil flow can be carried out at the facility. The subject matter was invented and 1. An installation for cleaning oil from gas and formation water, containing a process tank divided into compartments of preliminary gas separation, preliminary dewatering, deep dewatering and end gas separation, gas separation and gas drying devices, distributors. supplying water and gas-oil notes under the water cushion, partitions, gas preheater under the water cushion in the compartment of the pre-gasification, coalescing filter and means of measuring, control and automation, in order to nitrate the process of dehydration and desalting and reduce and reduce and reduce and reduce and reduce and reduce and reduce and reduce and reduce and reduce the costs it is equipped with a canalizer, located between the compartments of the preliminary gas separation and preliminary dehydration, and the supply of hot fresh water in the compartment dehydration. 2. Installation of io p. 1, characterized in that the droplet forming agent is made in the form of a package of partitions, of which one does not reach the top one by one, and the other - to the bottom of the process tank, the number of partitions and the distance between them being chosen based on prediction of water feed

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