公开(公告)号：US11603747B2

公开(公告)日：2023-03-14

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: B01D17/06 ,  E21B43/34 ,  B01D17/02 ,  B01D19/00

Abstract: A three-stage degassing and dewatering device includes a first-stage degasser, a second-stage degasser, an oil drainer, a rod electrode, a dewaterer, and a water drainer. 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 dewaterer, forming a qualified crude oil after removing the remaining water in the crude oil emulsion.

公开(公告)号：US11931672B2

公开(公告)日：2024-03-19

申请号：US17206157

申请日：2021-03-19

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Xinfu Liu ,  Huifeng Wang ,  Zhongxian Hao ,  Chunhua Liu ,  Ji Chen ,  Feng Liu ,  Xiaoming Wu ,  Peng Gao ,  Xiaolei Wang

IPC: B01D19/00

CPC classification number: B01D19/0068 ,  B01D19/0057

Abstract: The three-stage axial flow degassing device adopts an efficient degassing technology including a vertical high speed swirling field, a horizontal rapid axial flow field and a vertical reversing scrubbing field formed by a combination of vertical tubes; the first-stage degasser performs the first-stage segmental vertical high speed swirling degassing operation, removes the gas phase carried by the gas-containing fluid, and forms a primary gas and a primary fluid; the microporous uniform mixer breaks bubbles of the primary fluid and forms a gas-liquid uniform mixed flow; the second-stage degasser performs the second-stage horizontal vane wheel swirling generating rapid axial flow degassing operation, removes the gas phase carried by the gas-liquid uniform mixed flow, and forms a secondary gas and a secondary fluid; the third-stage degasser performs the third-stage vertical reversing deep degassing operation, removes liquid phase carried by the secondary gas, and forms a tertiary gas and a tertiary fluid.