Title:
METHOD AND APPARATUS FOR SELECTIVE ACID DIVERSION IN MATRIX ACIDIZING OPERATIONS
Document Type and Number:
WIPO Patent Application WO/2012/033621
Kind Code:
A3
Abstract:
An apparatus and method for selectively delivering a fluid to a targeted area through the use of vortices that are experiencing Taylor-Couette flow. Rotation of the outer surface of a body of the apparatus causes fluid within the annular area between a wellbore and the outer surface to form opposing vortices, which can then be used to selectively deliver the fluid to the targeted area, such as areas of low permeability of a reservoir, in order to improve flow characteristics of a producing area.
Inventors:
NOUI-MEHIDI MOHAMED NABIL (SA)
Application Number:
PCT/US2011/048191
Publication Date:
June 14, 2012
Filing Date:
August 18, 2011
Export Citation:
Assignee:
SAUDI ARABIAN OIL CO (SA)
ARAMCO SERVICES CO (US)
NOUI-MEHIDI MOHAMED NABIL (SA)
ARAMCO SERVICES CO (US)
NOUI-MEHIDI MOHAMED NABIL (SA)
International Classes:
E21B43/26; E21B43/16; F04D13/08
Foreign References:
| US6382321B1 | 2002-05-07 |
Other References:
ZENO, P. ET AL: "The Role of Taylor Vortices in the Transport of Drill Cuttings", SPE, vol. SPE, 39504, 7 April 1998 (1998-04-07), pages 1 - 7, XP007920443
NOUI-MEHIDI M.N. ET AL: "Effect of Borehole Inclination, Annular Clearance, on the Hole Cleaning Efficiency for Water Based Drilling Muds", SPE, vol. SPE, 136937, 4 April 2010 (2010-04-04), pages 1 - 6, XP007920437
NOUI-MEHIDI M.N. ET AL: "Effect of Borehole Inclination, Annular Clearance, on the Hole Cleaning Efficiency for Water Based Drilling Muds", SPE, vol. SPE, 136937, 4 April 2010 (2010-04-04), pages 1 - 6, XP007920437
Attorney, Agent or Firm:
GALL RHEBERGEN, Constance (P.O. Box 61389Houston, TX, US)
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