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:
Mar. 14, 2006
Filed:
Nov. 07, 2002
Applicants:
Howard P. Klein, Austin, TX (US);
Chris E. Godinich, Houston, TX (US);
Inventors:
Howard P. Klein, Austin, TX (US);
Chris E. Godinich, Houston, TX (US);
Assignee:
Huntsman Petrochemical Corporation, The Woodlands, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 7/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
Drilling fluid additives that act to control clay swelling in drilled formations without adversely effecting the properties of the drilling fluid. The drilling fluid additives preferably comprise a polyether amine, a polyether amine derivative, or mixtures thereof. Drilling fluids that comprise such drilling fluid additives and a method of reducing clay swelling in drilled formations are also disclosed.