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:
May. 12, 2015
Filed:
Feb. 25, 2014
Halliburton Energy Services, Inc., Houston, TX (US);
James William Ogle, Houston, TX (US);
Jeremy Holtsclaw, Houston, TX (US);
David Loveless, Houston, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
Crosslinked gelling agents employed during subterranean operations use electronically-modified boronic acids to enable higher operating temperatures while allowing reduced gelling agent loadings; the boronic acids having Formula I: Xand Xare independently selected from O, CH, CHO, OCH, bond, and null, Yand Yare independently N or C, Ar is a 5- or 6-membered ring aryl or heteroaryl group with a link L to monomer unit M, m is 1 or 2, n is 0, 1, 2, or 3, and each Z is independently an electron withdrawing group selected from nitro, ester, carboxylic acids, carboxylates, halogen, cyano, amide, acyl, alkylsulfonyl, arylsulfonyl, heteroarylsulfonyl, CF, a quaternary ammonium salt, polyhaloalkyl, and carbamate, with the proviso that when n is 0, the link L between Mand Ar includes an electron withdrawing group attached to Ar, and introducing the treatment fluids into subterranean formations.