Determining multiphase saturations by NMR imaging of multiple nu

Details Determining multiphase saturations by NMR imaging of multiple nu Determining multiphase saturations by NMR imaging of multiple nu

1986-07-02

1988-09-06

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using well logging device

324307, G01R 3320

Patent

active

047696028

ABSTRACT:
The present invention provides a method for measuring fluid saturations during multiphase flow in porous media by NMR imaging of preselected nuclides in preselected fluids. For two-phase imaging, one of the fluids to be imaged may contain protons and the other fluid may contain fluorine. For three phase imaging, the third fluid contains neither protons nor fluorine. The radiofrequency transmitters and receivers may be alternated between proton and fluorine Larmor frequencies on sequential or interleaved imaging cycles. Proton and fluorine calibration standards may also be imaged with the sample and the nuclide signal intensities from the sample normalized to the respective proton and fluorine calibration standards. The saturation of two and three-phases may then be determined throughout the porous media. The porosity of a porous media may also be determined from the images of a calibration standard of a first fluid and the media saturated to one hundred percent with the first fluid.

REFERENCES:
patent: 3238446 (1966-03-01), Zimmerman
patent: 4022276 (1977-05-01), Dreher
patent: 4291271 (1981-09-01), Lauffer
patent: 4411270 (1983-10-01), Damadian
patent: 4424487 (1984-01-01), Lauffer
patent: 4425547 (1984-01-01), Sugimoto
patent: 4528510 (1985-07-01), Loeffler et al.
patent: 4564811 (1986-01-01), Walker
patent: 4583044 (1986-04-01), Case et al.
patent: 4636730 (1987-01-01), Bottomley
patent: 4644283 (1987-02-01), Vinegar

Affiliated with

Also associated with

Rating

Determining multiphase saturations by NMR imaging of multiple nu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Determining multiphase saturations by NMR imaging of multiple nu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determining multiphase saturations by NMR imaging of multiple nu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1608510