Multistage series-parallel connected type oil-water separating equipment adopting crude oil emulsion breaking

Abstract

The invention relates to a multistage series-parallel connected type oil-water separating equipment adopting crude oil emulsion breaking. The multistage series-parallel connected type oil-water separating equipment mainly consists of a vibration device and a power unit, wherein the vibration device mainly consists of a feeding oil-water separation pipe, an intermediate oil-water separation pipe, adischarging oil-water separation pipe, a vibration exciting shaft and a vibration exciter which is fixed to the vibration exciting shaft in a serial connection manner. According to the multistage series-parallel connected type oil-water separating equipment disclosed by the invention, by utilizing an excitation effect produced by the vibration exciter, the vibration device is driven to produce vibration; through physical effect on the crude oil, the oil-water separation is realized through the crude oil emulsion breaking technology. In addition, switching between serial connection and parallel connection of the separation pipeline can be quickly realized through a flow divider, and different operation effects under different practical working conditions are realized. The separating equipment disclosed by the invention has the advantages of compact structure and small occupied area; moreover, transportation and mounting are convenient, and the equipment can be widely used for meeting requirements on oil-water separation with different moisture contents in actual oil extraction plants through adoption of the crude oil emulsion breaking technology.

Description

technical field [0001] The invention relates to the field of crude oil demulsification, in particular to a multi-stage series-parallel hybrid crude oil demulsification oil-water separation device. Background technique [0002] In the process of oil recovery, the demulsification of crude oil is extremely important for crude oil extraction, gathering, transportation and processing. At present, with the continuous deepening of oilfield exploitation, most of my country's oilfields have entered the middle and late stages. In order to improve the recovery rate, domestic oilfields usually adopt the development methods of water injection and tertiary oil recovery. The emulsified crude oil produced by primary oil recovery is mostly water-in-oil emulsified crude oil, and the emulsified crude oil produced by water injection and tertiary oil recovery (especially alkali flooding and surfactant flooding) is mostly oil-in-water emulsified crude oil. Rising, and crude oil with high water c...

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Problems solved by technology

[0003] At present, the traditional oil-water demulsification methods widely used in China have different technical problems. For example, the physical methods on the market such as gravity sedimentation dehydration, cyclone separation dehydration method and ultrasonic method have problems such as complex equipment, serious energy consumption, and high cost; Such as adding demulsifiers, electric dehydration and other chemical methods have problems such as high cost of consumables in the treatment process and excessive residues of oil additives in the later stage, which seriously restrict the promotion of equipment and the application of crude oil processing units.

In view of these situations, various parts of the country are also actively researching new crude oil dehydration technology and developing new crude oil dehydration process and production equipment, but there are still many problems: on the one hand, there are problems in technical stability, which are affected by the component differences of crude oil from different origins , the stability of crude oil demulsification and dehydration effect is relatively poor; on the other hand, the designed production equipment can be realized in principle, but the energy consumption is too high and the economic efficiency is too low when dehydrating crude oil in the actual production process, so it is not suitable as a batch of crude oil dehydration Production equipment use

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