Proppants coated by piezoelectric or magnetostrictive...

Wells – Processes – With indicating – testing – measuring or locating

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C166S250100, C166S280200, C428S407000

Reexamination Certificate

active

08006755

ABSTRACT:
A method for “tagging” proppants so that they can be tracked and monitored in a downhole environment, based on the use of composite proppant compositions comprising a particulate substrate coated by a material whose electromagnetic properties change at a detectable level under a mechanical stress such as the closure stress of a fracture. In another aspect, the invention relates to composite proppant compositions comprising coatings whose electromagnetic properties change under a mechanical stress such as the closure stress of a fracture. The substantially spherical composite proppants may comprise a thermoset nanocomposite particulate substrate where the matrix material comprises a terpolymer of styrene, ethylvinylbenzene and divinylbenzene, and carbon black particles possessing a length that is less than 0.5 microns in at least one principal axis direction incorporated as a nanofiller; upon which particulate substrate is placed a coating comprising a PZT alloy manifesting a strong piezoelectric effect or Terfenol-D manifesting giant magnetostrictive behavior to provide the ability to track in a downhole environment.

REFERENCES:
patent: 3843566 (1974-10-01), Barrett
patent: 4427793 (1984-01-01), Reed et al.
patent: 5597784 (1997-01-01), Sinclair et al.
patent: 6116342 (2000-09-01), Clark
patent: 6248838 (2001-06-01), Albright
patent: 6330916 (2001-12-01), Rickards et al.
patent: 6451953 (2002-09-01), Albright
patent: 6499536 (2002-12-01), Ellingsen
patent: 6607036 (2003-08-01), Ranson et al.
patent: 6632527 (2003-10-01), McDaniel et al.
patent: 6737386 (2004-05-01), Moorhouse et al.
patent: 6759463 (2004-07-01), Lorah et al.
patent: 7032664 (2006-04-01), Lord et al.
patent: 7073581 (2006-07-01), Nguyen
patent: 7082993 (2006-08-01), Ayoub et al.
patent: 7189767 (2007-03-01), Gore et al.
patent: 7210526 (2007-05-01), Knobloch
patent: 7632688 (2009-12-01), Oka et al.
patent: 7803740 (2010-09-01), Bicerano et al.
patent: 7803741 (2010-09-01), Bicerano et al.
patent: 7803742 (2010-09-01), Bicerano et al.
patent: 7819181 (2010-10-01), Entov et al.
patent: 2007/0021309 (2007-01-01), Bicerano
patent: 2007/0066491 (2007-03-01), Bicerano
patent: 2007/0131424 (2007-06-01), Fripp
patent: 2007/0154268 (2007-07-01), Barron
patent: 2007/0161515 (2007-07-01), Bicerano
patent: 2007/0181302 (2007-08-01), Bicerano
patent: 2007/0259183 (2007-11-01), Knobloch
patent: 2007/0287636 (2007-12-01), Bicerano
patent: 2007/0298978 (2007-12-01), Crews
patent: 2008/0062036 (2008-03-01), Funk
patent: 2008/0139419 (2008-06-01), Huang
patent: 2008/0149345 (2008-06-01), Marya
patent: 2008/0149881 (2008-06-01), Park
patent: 2009/0029878 (2009-01-01), Bicerano
patent: 06773059 (2009-09-01), None
patent: 9927229 (1999-06-01), None
patent: 2004087798 (2004-10-01), None
patent: 2004092732 (2004-10-01), None
patent: 2006072069 (2006-07-01), None
patent: 2006135892 (2006-12-01), None
patent: 2007146067 (2007-12-01), None
patent: 2008124080 (2008-10-01), None
patent: 2009005880 (2009-01-01), None
patent: 2009124029 (2009-10-01), None
patent: PCT/US2009/52825 (2009-10-01), None
patent: 2010019424 (2010-02-01), None

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

Proppants coated by piezoelectric or magnetostrictive... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Proppants coated by piezoelectric or magnetostrictive..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Proppants coated by piezoelectric or magnetostrictive... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2782154

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