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:
Jan. 13, 2009
Filed:
Mar. 06, 2007
Applicants:
James Michael Brown, Tomball, TX (US);
John Gregory Darby, Lafayette, LA (US);
Inventors:
James Michael Brown, Tomball, TX (US);
John Gregory Darby, Lafayette, LA (US);
Assignee:
BJ Services Company, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 37/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
The annular surface between the tubing and casing of an oil or gas well may be contacted with a foamed well treatment composition containing a gas, a foaming agent and a liquid well treatment agent, such as a scale inhibitor, corrosion inhibitor, salt inhibitor, scale remover or biocide. The foam, upon destabilization, renders a thin film of concentrated well treatment agent on the external surfaces of the tubing, inside the casing and in the perforations.