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:
Jun. 07, 2011
Filed:
Feb. 04, 2009
Applicants:
D. V. Satyanarayana Gupta, The Woodlands, TX (US);
Madhukar Chetty, Houston, TX (US);
Paul Carman, Spring, TX (US);
Inventors:
D. V. Satyanarayana Gupta, The Woodlands, TX (US);
Madhukar Chetty, Houston, TX (US);
Paul Carman, Spring, TX (US);
Assignee:
BJ Services Company LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/04 (2006.01); E21B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present disclosure is directed to a method comprising introducing into a well bore a fluid comprising a zwitterionic polymer. The polymer is prepared by inverse emulsion polymerization of at least one monomer Acomprising a betaine group and optionally one or more nonionic monomers B. The well bore is chosen from a natural gas well bore and an oil well bore.