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:
Dec. 02, 2008
Filed:
Feb. 14, 2003
Véronique Barlet-gouedard, Chatenay Malabry, FR;
Chrystel Cambus, Richebourg, FR;
Samuel Danican, Houston, TX (US);
Erik Nelson, Houston, TX (US);
Bruno Goffe, Paris, FR;
Véronique Barlet-Gouedard, Chatenay Malabry, FR;
Chrystel Cambus, Richebourg, FR;
Samuel Danican, Houston, TX (US);
Erik Nelson, Houston, TX (US);
Bruno Goffe, Paris, FR;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
In a process to design high temperature cement sluries, the temperature stable phases (anorthite, wairakite) are selected; aluminum modifiers and silica oxides are added to the dry cement so that the elemental composition of the blend corresponds to the phases selected; the control of the particle size distribution and the relative amount of those minerals allow their addition at high concentration while leaving the slurry easily mixable and pumpable; and the kinetics of the targeted phases formation is then controlled by adjusting the crystallinity and the particles sizes of the different solids.