公开(公告)号：US20220127946A1

公开(公告)日：2022-04-28

申请号：US17211884

申请日：2021-03-25

Applicant: Qingdao University of Technology

Inventor： Xinfu LIU ,  Qingping LI ,  Youqiang WANG ,  Chunhua LIU ,  Zhongxian HAO ,  Feng LIU ,  Ji CHEN ,  Guanghai YU ,  Xiaoming WU ,  Xiaolei WANG

IPC: E21B43/34 ,  B01D17/02 ,  B01D19/00

Abstract: The three-stage degassing and dewatering technology with vertical, horizontal and elevated T-shaped tubes combined as well as a high-frequency and high-voltage dynamic electric field dewatering technology with a mouse cage formation constructed by rod electrodes are adopted. The first-stage degasser implements a first-stage axial-flow type collision buffer degassing and dewatering operation, forming a first-stage crude oil after removing some of the gas and water in the gas-containing and water-containing crude oil. The second-stage degasser implements a second-stage elevated efficient degassing operation, forming a second-stage crude oil after removing the remaining gas in the first-stage crude oil. The rod electrode constructs a dynamic electric field with a high frequency and a high voltage, and implements a third-stage high-frequency and high-voltage rapid dewatering operation together with the elevated dewaterer, forming a qualified crude oil after removing the remaining water in the crude oil emulsion.