A method of series/parallel adjustable ultrasonic tank demulsification

Abstract

The invention discloses a serial / parallel connection adjustable ultrasonic wave tank type demulsification method. At least two ultrasonic demulsification tanks are connected in series / in parallel to an intermediate pipeline of an oil-water emulsion storage tank or a pipeline before an oil-water emulsion enters the tank, one set of ultrasonic transduction distribution devices is arranged, an ultrasonic distributor is arranged in an ultrasonic demulsification tank and is connected with the ultrasonic demulsification tank through a pipeline, a fully-serial connection, fully-parallel connection or parallel-connection and serial-connection jointed any-transformation ultrasonic demulsification function is realized by regulation of a valve, and thus the oil-water emulsion is dewatered. The device and method are multi functional, convenient to install and simple in internal structure, are suitable for tank type demulsification and dewatering in an oil field or oil refinery, and particularly suitable for complicated and variable occasions with multifunctional requirements of needing multiple stages of serial connection and parallel connection for prolonging ultrasonic wave acting time or a parallel connection-serial connection joint function for the oil-water emulsion.

Description

technical field [0001] The invention discloses a series / parallel adjustable ultrasonic tank-type demulsification method, which belongs to the field of petrochemical technical equipment. Background technique [0002] In recent years, with the gradual reduction of petroleum resources and the continuous increase of people's demand for petroleum products, oilfield companies have been prompted to adopt various measures to increase production, using crude oil reserves that were difficult to exploit in the past, and widely applying tertiary oil recovery technologies, such as polymer flooding, multi-component compounding, etc. The extensive application of technologies such as flooding, surface active flooding, alkali flooding, carbon dioxide flooding, and thermal recovery of heavy oil has resulted in intensified emulsification of heavy and inferior crude oil and stable emulsified structure. It is difficult to quickly achieve effective emulsification by traditional thermochemical mean...

AI Technical Summary

Problems solved by technology

Over the years, the research on crude oil demulsification technology is mostly limited to the research of chemical demulsifiers, which has great limitations on different types of crude oil, and the application of demulsifiers has many production and environmental problems: resulting in increased production costs, resulting in The oil content and COD value of the drainage will increase, which will directly affect the normal operation and standard discharge of subsequent sewage treatment

Its device directly refits the raw material storage tank or settling tank. Since the upper head of the raw material storage tank or settling tank is a convex structure, its defect is that it takes a long time for the ultrasonic transducer to extend into the ultrasonic demulsification tank. The length of the rod directly affects the electroacoustic efficiency, and the ultrasonic waves generated by the ultrasonic distributor cannot effectively affect the oil-water emulsion; when the device is used, the raw material storage tank or the settling tank needs to be temporarily refitted to install multiple ultrasonic generators

The ultrasonic distributor directly acts on the oil-water emulsion to cause dead angle or short circuit phenomenon. The equipment structure is complicated, the inspection and maintenance are inconvenient, the manufacturing cost is high, and the reusability is poor.

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