Measuring and testing – Borehole or drilling – Downhole test
Patent
1983-12-28
1986-09-02
Myracle, Jerry W.
Measuring and testing
Borehole or drilling
Downhole test
73 76, E21B 4700
Patent
active
046088598
ABSTRACT:
A process for analyzing a sample of cuttings from oil or gas wells includes as its first step the determination of the water and light hydrocarbon content of the sample. The sample may then be sieved to remove any powders which may affect subsequent steps. The sample is also sieved to separate it into medium and large size fragments which are then weighed. A medium sized fragment is ground, mixed with potassium bromide (KBr) and tested with a Fourier transform infra red spectrometer to determine its mineral content. The larger size fragments are heated in an oven to burn off their volatiles and reweighed to determine their heavy hydrocarbon content. The large size fragments may now be tested with a helium pycnometer to determine the grain density of the sample, a second pycnometer, which uses a clay suspension as the working fluid, to determine the bulk density and porosity of the sample and a permeameter to determine the permeability of the sample. A conventional porosimeter may be used if a pore spectrum of the cutting is desired.
REFERENCES:
patent: 2296852 (1942-09-01), Horner
patent: 2667782 (1954-02-01), Shea
patent: 3489002 (1970-01-01), Thompson
Microlytics, Inc.
Myracle Jerry W.
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