Measuring and testing – Borehole or drilling – Downhole test
Patent
1988-02-16
1988-12-13
Levy, Stewart J.
Measuring and testing
Borehole or drilling
Downhole test
E21B 4902
Patent
active
047901802
ABSTRACT:
Core samples are obtained from a plurality of differing depths in a subterranean formation. The samples are dried to effect an evaporation of the water content, leaving behind a salt precipitate. The dried samples are weighed. The salt precipitate is then leached out of the samples and the samples are again weighed, the difference in such weighings identifying the amount of salt precipitate. Alternatively, the salt content can be more accurately determined by chemical analysis of the leached solution. A measurement is made of the pore volume of the samples. From the measured weights of salt precipitates and sample pore volumes, the salt content in mass per unit volume is determined for each sample. Such salt content is plotted versus formation depth from which the core samples were taken. Trends in such plotted salt content are used to identify fluid characteristics of the formations at the in-situ reservoir conditions of pressure and temperature and at the in-situ wettability state of the reservoir.
REFERENCES:
patent: 3839899 (1974-10-01), McMillen
patent: 4005290 (1977-01-01), Allen
patent: 4021666 (1977-05-01), Allen
patent: 4413512 (1983-11-01), Zemanek, Jr.
patent: 4506548 (1985-03-01), Zemanek, Jr.
patent: 4508169 (1985-04-01), Mut et al.
patent: 4517836 (1985-05-01), Lyle, Jr. et al.
patent: 4649483 (1987-03-01), Dixon, Jr.
patent: 4687523 (1987-08-01), Hall et al.
patent: 4688238 (1987-08-01), Sprunt et al.
"Petroleum Production Engineering", L. C. Uren, McGraw-Hill Book Co., Inc., 4th Ed., pp. 660-669.
"API Recommended Practice for Core-Analysis Procedure", Am. Petroleum Institute, New York, N.Y., 1st Ed., Aug. 1960, pp. 2-55.
Gilman Michael G.
Hager Jr. George W.
Levy Stewart J.
McKillop Alexander J.
Mobil Oil Corporation
LandOfFree
Method for determining fluid characteristics of subterranean for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for determining fluid characteristics of subterranean for, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining fluid characteristics of subterranean for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2190085