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:
Oct. 17, 2006
Filed:
Sep. 28, 2001
Laurent Jammes, Beijing, CN;
Ollivier Faivre, Paris, FR;
Emmanuel Legendre, Sèvres, FR;
Pascal Rothnemer, Clamart Cedex, FR;
Jean-claude Trouiller, Saint Remy les Chevreuse, FR;
Maria Teresa Galli, Milan, IT;
Mauro Gonfalini, Milan, IT;
Patrizio Gossenberg, Milan, IT;
Laurent Jammes, Beijing, CN;
Ollivier Faivre, Paris, FR;
Emmanuel Legendre, Sèvres, FR;
Pascal Rothnemer, Clamart Cedex, FR;
Jean-Claude Trouiller, Saint Remy les Chevreuse, FR;
Maria Teresa Galli, Milan, IT;
Mauro Gonfalini, Milan, IT;
Patrizio Gossenberg, Milan, IT;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Methods for evaluating the properties of formations surrounding a borehole, include the steps of measuring electrical properties of the formation from within the borehole; deriving a model of parameters of the formation surrounding the borehole; and estimating the properties of the formation using the model to interpret the measured electrical properties. In one aspect of the invention in which the formation includes a series of distributed beds, each bed having specific properties. Another aspect includes grouping similar beds, assigning one or more properties to all of the beds in a group, and using the assigned properties to estimate the properties of the formation for measurements relating to the beds of that group. Another aspect includes making several different measurements of formation electrical properties and simultaneously estimating the formation properties from the different measurements to provide a joint inversion. A still further aspect includes the use of a complex model incorporating electrical properties with other petrophysical information to estimate the properties of the formation from the electrical measurements.