Formation-based interpretation of NMR data for carbonate...

Electricity: measuring and testing – Particle precession resonance – Using well logging device

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

06977499

ABSTRACT:
An apparatus and method for determining a parameter of interest of a formation composed of carbonate rock. A nuclear magnetic resonance (NMR) sensor assembly produces a pulsed RF field designed for obtaining measurements indicative of the parameter of interest of the formation. A downhole processor processes the measurements for obtaining BVI and BVM using a cutoff time based on classification of the carbonate. Further processing is done to estimate the permeability of the carbonate.

REFERENCES:
patent: 3258681 (1966-06-01), Brown et al.
patent: 3439260 (1969-04-01), Bene
patent: 3528000 (1970-09-01), Schwede
patent: 5306640 (1994-04-01), Vinegar et al.
patent: 5680043 (1997-10-01), Hurlimann et al.
patent: 5831433 (1998-11-01), Sezginer et al.
patent: 6040696 (2000-03-01), Ramakrishnan et al.
patent: 6069477 (2000-05-01), Chen et al.
patent: 6088656 (2000-07-01), Ramakrishnan et al.
patent: 6111408 (2000-08-01), Blades et al.
patent: 6111409 (2000-08-01), Edwards et al.
patent: 6229308 (2001-05-01), Freedman
patent: 6232778 (2001-05-01), Speier et al.
patent: 6331775 (2001-12-01), Thern et al.
patent: 6346813 (2002-02-01), Kleinberg
patent: 6369567 (2002-04-01), Song et al.
patent: 6559639 (2003-05-01), Minh et al.
patent: 6570382 (2003-05-01), Hurlimann et al.
patent: 6571619 (2003-06-01), Herron et al.
patent: 6577125 (2003-06-01), Prammer et al.
patent: 2002/0153888 (2002-10-01), Kruspe et al.
patent: 2003/0231017 (2003-12-01), Kiesl et al.
Flavio et al., “Quantitative Characterization of Carbonate Pore Systems by Digutal Image Analysis”, AAPG Bulletin, V. 82 No. 10 Oct. 1998, P1815-1836.
http://www.pe.utexas.edu/Dept/Academic/Courses/F2001/PGE368/PDFs/Petrophysical_Approach.pdf; “ThePetrophysical Approach”, P1-24.
http://www.scaweb.org/assets/pdf/scal-2000_carbonates.pdf,“ Carbonate Rocks”; P 1-10.
J.O. Parra et al., “NMR Acoustic Signatures in Vuggy carbonate Aquifiers”, 42nd Annual SPWLA Meeting, Jun. 2001, P1-12.
http://www.oilfield.slb.com/media/resources/ mewr/wer18/chapter2.pdf, “Carbonates the inside story”, P1-17.
http://faculty.uaeu.ac.ae/˜sadooni/reservoir/lecture1.htm, Quick introduction to “Carbonate Reservoirs”, P1-16.
Leslie A. Melim et al.;The Importance of Pore Type on Permeability of Neogene Carbonates, Great Bahama Bank,SEPM (Society for Sedimentary Geology), ISBN 1-56576-007-8, pp. 217-238.
http://www.pcai.com/web/ai info/expert systems.html; PCAI—Expert Systems; pp. 1-21.
http://www-ra.informatik.uni-tuebingen.de/SNSS/announce.html; What is SNNS? pp. 1-2.
T.S. Ramakrishnan et al.;A Model-Based Interpretation Methodology for Evaluating Carbonate Reservoirs,SPE 71704, 2001 SPE Annual Technical Conference and Exhibition held in New Orleans, Louisiana, Sep. 30-Oct. 3, 2001, pp 1-15, 13 Figs.
Mahmood Akbar et al.;A Snapshot of Carbonate Reservoir Evaluation,Oilfield Review, Winter 2000/2001, pp. 20-41.
Oxford University Press; xreter—Dunham classification, p. 1.
Bureau of Economic Geology,Carbonate Classification by Interparticle Pore Space,The University of Texas at Austin, Reservoir Characterization Research Laboratory, Rock Fabric Studies, pp. 1-2.
Carbonates: Classification;The ‘How-To’ of Classification,pp. 1-2.
Ben Lowden;Some simple methods for refining permeability estimates from NMR logs and generating capillary pressure curves,http://www.lps.org.uk/dialogweb/archive/permeability_estimates_lowden/lowden.html, pp. 1-7.
Frederick Hayes-Roth;The Knowledge-Based Expert System: A Turtorial ,vol. 17, No. 9, (ISSN 0018-9162) Sep. 1984, pp. 11-28, 3 Tables.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Formation-based interpretation of NMR data for carbonate... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Formation-based interpretation of NMR data for carbonate..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Formation-based interpretation of NMR data for carbonate... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3497724

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.