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. 10, 2012
Filed:
Sep. 03, 2008
David E. Clark, Humble, TX (US);
Lirio Quintero, Houston, TX (US);
Thomas A. Jones, Cypress, TX (US);
Chad F. Christian, Houston, TX (US);
Alexander Mckellar, The Woodlands, TX (US);
David E. Clark, Humble, TX (US);
Lirio Quintero, Houston, TX (US);
Thomas A. Jones, Cypress, TX (US);
Chad F. Christian, Houston, TX (US);
Alexander McKellar, The Woodlands, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Nanoemulsion, macroemulsions, miniemulsions, microemulsion systems with excess oil or water or both (Winsor I, II or III phase behavior) or single phase microemulsions (Winsor IV) improve the removal of filter cakes formed during hydrocarbon reservoir wellbore drilling with OBM. Such filter cakes and their particles can contact, impact and affect the movement of the drill string undesirably resulting in a 'stuck pipe' condition. The macroemulsion, nanoemulsion, miniemulsion, microemulsion systems with excess oil or water or both or single phase microemulsion removes oil and solids from the filter cake, thereby releasing the drill string from its stuck condition. In one non-limiting embodiment, the emulsion system may be formed in situ (downhole) rather than produced or prepared in advance and pumped downhole.