Method and apparatus utilizing ionizing and microwave radiation for saturation determination of water, oil and a gas in a core sample
Patent
·
OSTI ID:7250371
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.
- DOE Contract Number:
- FC22-83FE60149
- Assignee:
- Dept. of Energy, Washington, DC (United States)
- Patent Number(s):
- A; US 5341101
- Application Number:
- PPN: US 8-050977
- OSTI ID:
- 7250371
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
440700 -- Geophysical & Meteorological Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
DESIGN
DRILL CORES
ELECTROMAGNETIC RADIATION
GAS SATURATION
HYDROCARBONS
IONIZING RADIATIONS
MEASURING INSTRUMENTS
MICROWAVE RADIATION
OIL SATURATION
OPERATION
ORGANIC COMPOUNDS
PERMEABILITY
RADIATIONS
RESERVOIR ROCK
SAMPLE HOLDERS
SATURATION
WATER SATURATION
X RADIATION
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
440700 -- Geophysical & Meteorological Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
DESIGN
DRILL CORES
ELECTROMAGNETIC RADIATION
GAS SATURATION
HYDROCARBONS
IONIZING RADIATIONS
MEASURING INSTRUMENTS
MICROWAVE RADIATION
OIL SATURATION
OPERATION
ORGANIC COMPOUNDS
PERMEABILITY
RADIATIONS
RESERVOIR ROCK
SAMPLE HOLDERS
SATURATION
WATER SATURATION
X RADIATION