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. 06, 2006
Filed:
Oct. 14, 2002
Neil Grainger, Stockton-on-Tees, GB;
Benjamin Herzhaft, Suresnes, FR;
Mark White, Whitby, GB;
Annie Audibert Hayet, Croissy sur Seine, FR;
Neil Grainger, Stockton-on-Tees, GB;
Benjamin Herzhaft, Suresnes, FR;
Mark White, Whitby, GB;
Annie Audibert Hayet, Croissy sur Seine, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Imperial Chemical Industries Plc, London, GB;
Abstract
A well drilling method comprises removing the drilling cuttings using an aqueous drilling fluid such as a foam including a foaming agent which includes at least one mono-(aliphatic hydrocarbyl) phosphate ester. More specifically, the drilling fluid takes the form of a potassium and/or alkanolamine and/or alkylalkanolamine salt, the foam also comprising a foam stabiliser.