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:
Sep. 25, 2007
Filed:
Jun. 03, 2005
Applicants:
Michael J. Szymaski, Duncan, OK (US);
J. Michael Wilson, Duncan, OK (US);
Samuel J. Lewis, Duncan, OK (US);
Bryan K. Waugh, Comanche, OK (US);
Inventors:
Michael J. Szymaski, Duncan, OK (US);
J. Michael Wilson, Duncan, OK (US);
Samuel J. Lewis, Duncan, OK (US);
Bryan K. Waugh, Comanche, OK (US);
Assignee:
HalliburtonCEnergy Services, Inc., Duncan, OK (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/138 (2006.01); E21B 43/00 (2006.01); C09K 8/035 (2006.01); C09K 8/38 (2006.01); C09K 8/42 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided herein are defoaming agents that comprise lecithin and a solvent. Optionally, they may comprise hydrophobic particles. One embodiment provides a method comprising: providing a well fluid that comprises foam; providing a defoaming agent that comprises lecithin and a solvent; and contacting the well fluid with the defoaming agent so that the amount of foam present in the well fluid is reduced.