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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 is described 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. 11 figs.

Inventors:
; ; ;
Issue Date:
OSTI Identifier:
7250371
Patent Number(s):
5341101 A
Application Number:
PPN: US 8-050977
Assignee:
Dept. of Energy, Washington, DC (United States) PTO; EDB-94-128200
DOE Contract Number:  
FC22-83FE60149
Resource Type:
Patent
Resource Relation:
Patent File Date: 20 Apr 1993
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; 47 OTHER INSTRUMENTATION; MEASURING INSTRUMENTS; DESIGN; RESERVOIR ROCK; GAS SATURATION; OIL SATURATION; WATER SATURATION; DRILL CORES; HYDROCARBONS; MICROWAVE RADIATION; OPERATION; PERMEABILITY; SAMPLE HOLDERS; X RADIATION; ELECTROMAGNETIC RADIATION; IONIZING RADIATIONS; ORGANIC COMPOUNDS; RADIATIONS; SATURATION; 020200* - Petroleum- Reserves, Geology, & Exploration; 030200 - Natural Gas- Reserves, Geology, & Exploration; 440700 - Geophysical & Meteorological Instrumentation- (1990-)

Citation Formats

Maerefat, N.L., Parmeswar, R., Brinkmeyer, A.D., and Honarpour, M. 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, N.L., Parmeswar, R., Brinkmeyer, A.D., & Honarpour, M. Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample. United States.
Maerefat, N.L., Parmeswar, R., Brinkmeyer, A.D., and Honarpour, M. Tue . "Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample". United States.
@article{osti_7250371,
title = {Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample},
author = {Maerefat, N.L. and Parmeswar, R. and Brinkmeyer, A.D. and Honarpour, M.},
abstractNote = {A system is described 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. 11 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {8}
}