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Title: Ultrasonic in-situ water-cut measurement using ultrasonic oil-water separation for affecting sound speed calibration

Abstract

An apparatus and method for the separation of an oil-water mixture into its components are described. An acoustic radiation force moves oil droplets to the nodes of an acoustic standing wave generated in a vertical column containing the oil-water mixture. Once the droplets are sufficiently close together, attractive forces become dominant and the droplets may coalesce to form larger droplets, which have greater buoyancy, and separation of the mixture into a layer of oil and a layer of water occurs, not possible by simple gravitational separation. Acoustically-driven oil-water separation may be used for water-cut measurements in oil production wells, since separation of the oil from the water permits accurate sound speed measurements to be made for both the oil and the water, thereby allowing frequent in situ calibrations of the apparatus to determine whether sound speed measurements on the mixture are accurate in the event that one or both of the mixture constituents is changing.

Inventors:
;
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771476
Patent Number(s):
10794865
Application Number:
15/563,603
Assignee:
Triad National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/01/2016
Country of Publication:
United States
Language:
English

Citation Formats

Sinha, Dipen N., and Pantea, Cristian. Ultrasonic in-situ water-cut measurement using ultrasonic oil-water separation for affecting sound speed calibration. United States: N. p., 2020. Web.
Sinha, Dipen N., & Pantea, Cristian. Ultrasonic in-situ water-cut measurement using ultrasonic oil-water separation for affecting sound speed calibration. United States.
Sinha, Dipen N., and Pantea, Cristian. Tue . "Ultrasonic in-situ water-cut measurement using ultrasonic oil-water separation for affecting sound speed calibration". United States. https://www.osti.gov/servlets/purl/1771476.
@article{osti_1771476,
title = {Ultrasonic in-situ water-cut measurement using ultrasonic oil-water separation for affecting sound speed calibration},
author = {Sinha, Dipen N. and Pantea, Cristian},
abstractNote = {An apparatus and method for the separation of an oil-water mixture into its components are described. An acoustic radiation force moves oil droplets to the nodes of an acoustic standing wave generated in a vertical column containing the oil-water mixture. Once the droplets are sufficiently close together, attractive forces become dominant and the droplets may coalesce to form larger droplets, which have greater buoyancy, and separation of the mixture into a layer of oil and a layer of water occurs, not possible by simple gravitational separation. Acoustically-driven oil-water separation may be used for water-cut measurements in oil production wells, since separation of the oil from the water permits accurate sound speed measurements to be made for both the oil and the water, thereby allowing frequent in situ calibrations of the apparatus to determine whether sound speed measurements on the mixture are accurate in the event that one or both of the mixture constituents is changing.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {10}
}

Works referenced in this record:

Distributed flow properties wellbore measurement system
patent, April 2005


Ultrasonic imaging system
patent, June 1989