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:
Aug. 29, 2006
Filed:
Jun. 05, 2003
Robert L. Horton, Sugar Land, TX (US);
Bethicia Prasek, Houston, TX (US);
Frederick B. Growcock, Houston, TX (US);
John W. Vian, Deer Park, TX (US);
Catalin D. Ivan, Sugar Land, TX (US);
Robert L. Horton, Sugar Land, TX (US);
Bethicia Prasek, Houston, TX (US);
Frederick B. Growcock, Houston, TX (US);
John W. Vian, Deer Park, TX (US);
Catalin D. Ivan, Sugar Land, TX (US);
M-I L.L.C., Houston, TX (US);
Abstract
A process to substantially reduce fluid loss in which an appropriate amount of a non-flowing gel of sufficient strength is emplaced to substantially eliminate or reduce loss of the drilling fluid. The gel composition of the process includes: (1) a non-cellulose containing copolymer having vinyl phosphonate co-monomer units which may be incorporated into the polymer by copolymerization with the other co-monomer(s) comprising the polymer or by grafting upon an already existing polymer or co-polymer, (2) a crosslinking agent active upon the phosphonate groups, (3) a crosslinking initiator comprising a Bronsted Lowry base or Lewis base and (4) an aqueous solvent.