The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2014
Filed:
Feb. 14, 2012
Mohan K. R. Panga, Novosibirsk, RU;
Philip F. Sullivan, Bellaire, TX (US);
Balkrishna Gadiyar, Katy, TX (US);
Ryan Hartman, Northport, AL (US);
Bruno Drochon, Cambridge, GB;
John W. Still, Katy, TX (US);
Bryan Stamm, Houston, TX (US);
Mohan K. R. Panga, Novosibirsk, RU;
Philip F. Sullivan, Bellaire, TX (US);
Balkrishna Gadiyar, Katy, TX (US);
Ryan Hartman, Northport, AL (US);
Bruno Drochon, Cambridge, GB;
John W. Still, Katy, TX (US);
Bryan Stamm, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A slurry and method are disclosed for low damage gravel packing. The slurry comprises a solids mixture comprising a plurality of volume-averaged particle size distribution (PSD) modes such that a packed volume fraction (PVF) exceeds 0.75; a carrier fluid in an amount to provide a solids volume fraction (SVF) less than the PVF of the solids mixture; and a stability additive to inhibit settling of the solids mixture. The method comprises circulating the slurry into a wellbore to deposit the slurry downhole; terminating the slurry circulation for a period of time, wherein the stability additive inhibits settling of the solids mixture; and thereafter circulating the deposited slurry in contact with a surface of a screen. Stability additives disclosed include colloidal particles, hydratable polymer particles, and particles having an aspect ratio above 6.