Determination of irreducible water cut-off using two...

Details Determination of irreducible water cut-off using two... Determination of irreducible water cut-off using two...

2011-03-29

2011-03-29

Bui, Bryan (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

C324S303000

Reexamination Certificate

active

07917294

ABSTRACT:
A method for estimating a distribution of pore sizes of a fluid filled rock formation penetrated by a borehole, the method including: processing nuclear magnetic resonance (NMR) data to determine a distribution of diffusion coefficients and a distribution of relaxation time constants for at least one depth in the borehole; plotting the distribution of diffusion coefficients and the distribution of relaxation time constants as a cross-plot for the at least one depth; identifying a water line on the cross-plot, each point on the water line having substantially the same value for the diffusion coefficient; and estimating the distribution of pore sizes from the distribution of relaxation time constants plotted along the water line.

REFERENCES:
patent: 5497087 (1996-03-01), Vinegar et al.
patent: 5696448 (1997-12-01), Coates et al.
patent: 5838155 (1998-11-01), Bowers
patent: 6833698 (2004-12-01), Sun et al.
patent: 2003/0214287 (2003-11-01), Sun et al.
International Search Report and Written Opinion, Mailed Oct. 27, 2009, International Application No. PCT/US2009/038313, Written Opinion 7 Pages, International Search Report 3 Pages.
Chen, S., et.al., “MR Explorer Log Acquistion Methods: Petrophysical Object-Oriented Approach”, paper ZZ, 44th Annual Symposium and Exhibition, Galveston, TX, Jun. 2003.

Affiliated with

Also associated with

Rating

Determination of irreducible water cut-off using two... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Determination of irreducible water cut-off using two..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Determination of irreducible water cut-off using two... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2625646