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. 09, 2008
Filed:
Jul. 19, 2005
Ahmed Hammami, Edmonton, CA;
Gerald H. Meeten, Ware, GB;
Bernadette Craster, Waterbeach, GB;
Scott Jacobs, Edmonton, CA;
Joseph A. Ayoub, Katy, TX (US);
Philippe Lacour-gayet, New York, NY (US);
Jean Desroches, Paris, FR;
Simon G. James, Le Plessis-Robinson, FR;
Saad Bargach, Houston, TX (US);
Gary L. Rytlewski, League City, TX (US);
Iain Cooper, Sugar Land, TX (US);
Ahmed Hammami, Edmonton, CA;
Gerald H. Meeten, Ware, GB;
Bernadette Craster, Waterbeach, GB;
Scott Jacobs, Edmonton, CA;
Joseph A. Ayoub, Katy, TX (US);
Philippe Lacour-Gayet, New York, NY (US);
Jean Desroches, Paris, FR;
Simon G. James, Le Plessis-Robinson, FR;
Saad Bargach, Houston, TX (US);
Gary L. Rytlewski, League City, TX (US);
Iain Cooper, Sugar Land, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Methods and tools are described to reduce sanding including the steps of fracturing the cement sheath in a localized zone around the casing and having the fractured zone act as sand filter between the formation and openings in the casing, with the openings being best pre-formed but temporarily blocked so as to allow a conventional primary cementing of the casing. The fracturing step can also be used for remedial operation to reopen blocked formation or screens.