DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample

Abstract

A system for determining the relative permeabilities of gas, water and oil in a core sample has a microwave emitter/detector subsystem and an X-ray emitter/detector subsystem. A core holder positions the core sample between microwave absorbers which prevent diffracted microwaves from reaching a microwave detector where they would reduce the signal-to-noise ratio of the microwave measurements. The microwave emitter/detector subsystem and the X-ray emitter/detector subsystem each have linear calibration characteristics, allowing one subsystem to be calibrated with respect to the other subsystem. The dynamic range of microwave measurements is extended through the use of adjustable attenuators. This also facilitates the use of core samples with wide diameters. The stratification characteristics of the fluids may be observed with a windowed cell separator at the outlet of the core sample. The condensation of heavy hydrocarbon gas and the dynamic characteristics of the fluids are observed with a sight glass at the outlet of the core sample.

Inventors:
 [1];  [2];  [3];  [4]
  1. Sugar Land, TX
  2. Marlton, NJ
  3. Tulsa, OK
  4. Bartlesville, OK
Issue Date:
Research Org.:
IIT Research Institute (Chicago, IL)
OSTI Identifier:
869465
Patent Number(s):
5341101
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
DOE Contract Number:  
FC22-83FE60149
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; utilizing; ionizing; microwave; radiation; saturation; determination; water; oil; gas; core; sample; determining; relative; permeabilities; emitter; detector; subsystem; x-ray; holder; positions; absorbers; prevent; diffracted; microwaves; reaching; reduce; signal-to-noise; ratio; measurements; linear; calibration; characteristics; allowing; calibrated; respect; dynamic; range; extended; adjustable; attenuators; facilitates; samples; wide; diameters; stratification; fluids; observed; windowed; cell; separator; outlet; condensation; heavy; hydrocarbon; sight; glass; cell separator; signal-to-noise ratio; dynamic range; hydrocarbon gas; microwave radiation; core sample; apparatus utilizing; noise ratio; microwave detector; microwave emitter; heavy hydrocarbon; utilizing ionizing; wide diameter; microwave absorber; microwave measurement; wave absorber; core samples; /324/73/250/

Citation Formats

Maerefat, Nicida L, Parmeswar, Ravi, Brinkmeyer, Alan D, and Honarpour, Mehdi. Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample. United States: N. p., 1994. Web.
Maerefat, Nicida L, Parmeswar, Ravi, Brinkmeyer, Alan D, & Honarpour, Mehdi. Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample. United States.
Maerefat, Nicida L, Parmeswar, Ravi, Brinkmeyer, Alan D, and Honarpour, Mehdi. Sat . "Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample". United States. https://www.osti.gov/servlets/purl/869465.
@article{osti_869465,
title = {Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample},
author = {Maerefat, Nicida L and Parmeswar, Ravi and Brinkmeyer, Alan D and Honarpour, Mehdi},
abstractNote = {A system for determining the relative permeabilities of gas, water and oil in a core sample has a microwave emitter/detector subsystem and an X-ray emitter/detector subsystem. A core holder positions the core sample between microwave absorbers which prevent diffracted microwaves from reaching a microwave detector where they would reduce the signal-to-noise ratio of the microwave measurements. The microwave emitter/detector subsystem and the X-ray emitter/detector subsystem each have linear calibration characteristics, allowing one subsystem to be calibrated with respect to the other subsystem. The dynamic range of microwave measurements is extended through the use of adjustable attenuators. This also facilitates the use of core samples with wide diameters. The stratification characteristics of the fluids may be observed with a windowed cell separator at the outlet of the core sample. The condensation of heavy hydrocarbon gas and the dynamic characteristics of the fluids are observed with a sight glass at the outlet of the core sample.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}

Works referenced in this record:

The effects of viscous forces on three-phase relative permeability
report, April 1989


A New X-Ray Absorption Method for Measurement of Three-Phase Relative Permeability
journal, February 1988