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:
Feb. 07, 2006
Filed:
Sep. 08, 2001
Applicants:
Rogerio Tadeu Ramos, Bethel, CT (US);
Christian Besson, Moscow, RU;
Andrew Hunt, Dorset, GB;
Inventors:
Assignee:
Schlumberger Technology Corporation, Ridgefield, CT (US);
Primary Examiner:
Int. Cl.
CPC ...
E21B 28/00 (2006.01); E21B 33/14 (2006.01); E21B 37/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention describes a method of cement lining a wellbore to enable a fixed sensor internal of the lining to sense characteristics of the external formations surrounding the wellbore using, at the region of the sensor position, a permeability changing device before completion of setting of the cement to create, in use, a permanent fluid communication through the cement lining between the external formation and the sensor.