A Method for Optimizing Crude Oil Dehydration Parameters in Pulse Electric Field

Abstract

The invention relates to a method for optimizing the parameters of pulse electric field crude oil dehydration, which is carried out by using a pulse electric field crude oil dehydration test device, and is completed through the following steps: (1) determining the distance between electric field constructions; (2) considering the pulse electric field parameters of the response of the dehydration medium (3) construction of pulsed electric field parameter optimization sequence; (4) optimization of frequency deviation series; (5) optimization of electric field strength and duty cycle, complete the optimization of pulsed electric field crude oil dehydration parameters, and obtain pulsed electric field parameters (f * ,E * 、D * ) optimal design value. The present invention establishes an M-N class pulse electric field parameter optimization sequence, and uses the two-dimensional plane sequence of this three-dimensional space sequence under a certain frequency offset series as the discrete point for electric field parameter optimization, which combines multiple parameters and multiple variables The optimization realizes scientific simplification, greatly reduces the scope of parameter tuning, and effectively improves the practicability and accuracy of parameter optimization design results.

Description

technical field [0001] The present invention relates to the oil-water separation process of the surface gathering and transportation system of the oil field, based on the M-N class pulse electric field parameter optimization sequence, the power supply separation of dense crude oil emulsion high-voltage pulse power supply and the operation parameter optimization technology, specifically related to an optimized pulse electric field crude oil dehydration parameter method. Background technique [0002] Oil-water separation is a major task of surface engineering when an oilfield enters the water-bearing development stage. For a long time, the gravity sedimentation separation method based on the principle of oil-water density difference, the chemical separation method based on the principle of demulsifier replacing the emulsion layer at the oil-water interface, and the water-based separation method have been formed. Electric field dehydration methods based on the principle of pola...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for optimizing the dehydration parameters of pulsed electric field crude oil, which is used to solve the difficulty of electric field construction or maintenance in the dehydration and separation process of tight crude oil emulsion in the prior art, and the separation efficiency The problem that the purification effect is not high enough, the purification effect cannot be fully guaranteed, and the problem that the property change of the crude oil emulsion is not adaptable to the operating parameters of the electric field method dehydration process

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