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Analysis and Measures of the Collapse of the Electric Field of the Electric Dehydrator

Author: MaJianWei
Tutor: SongHua
School: Daqing Petroleum Institute
Course: Chemical processes
Keywords: Crude Emulsion Electric dehydration Electric current FeS Collapse of the electric field
CLC: TE977
Type: Master's thesis
Year: 2005
Downloads: 309
Quote: 9
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Abstract


This article established within the chamber of a small set of static analog electric dehydrator test device , and the A / D converter card installed on your computer in order to achieve on the the electric dehydrator Dehydration current real-time monitoring . Dehydration time varying current curve can quickly and accurately reflect the impact of the dewatering parameter of dehydrated current , thus saving time and costs . The small set of the static analog electric dehydrator test device investigated under DC electric field , the dehydration temperature , dehydration field , , demulsifier , Fe content , polymer content , alkali content of surfactant content , and water content of crude oil dehydration current the impact of electric dehydrator collapse of the reasons of the electric field , and reduce crude oil emulsion dehydration current . The experimental results showed that : a DC electric field between the plates , the higher the voltage , the lower the dehydration temperature , the water content of the oil sample and the iron content increases , the dehydration current increases , reaches a certain value , will produce a spark discharge phenomenon , leading to serious the experimental apparatus trip , so-called \Found that the water content and the iron content is the collapse of the electric field \Natural surfactant , polymer , and the role of ferrous sulfide colloids or particles is the main reason for the formation of a more stable water-in- oil intermediate layer in the four plants of Daqing oilfield crude oil dehydration . Screening and compound 2 # demulsifier with acid and oxidant compound used to effectively destroy the variety of different types of crude oil oil-water transition of the middle layer , and can effectively suppress the electric dehydrator collapse electric field \When the acid and 2 # demulsifier composite water flooding , polymer flooding and ASP flooding liquid and oil dehydration current decreased significantly in the current curve peaks disappear , the electric dehydration process in ignition the discharge phenomenon also been effectively suppressed .

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CLC: > Industrial Technology > Oil and gas industry > Oil machinery and equipment and automation > Oil and gas storage and transportation machinery and equipment > Oil and gas gathering and transportation machinery and equipment
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