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. 20, 2013
Filed:
Feb. 06, 2007
Marat Tokhtarovich Nukhaev, Moscow Region, RU;
Vladimir Vasilievich Tertychnyi, Moscow, RU;
Alexandr Nikolaevich Shandrygin, Moscow, RU;
Yan Kuhn DE Chizelle, Houston, TX (US);
Marat Tokhtarovich Nukhaev, Moscow Region, RU;
Vladimir Vasilievich Tertychnyi, Moscow, RU;
Alexandr Nikolaevich Shandrygin, Moscow, RU;
Yan Kuhn De Chizelle, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
A method of determining a permeability profile of a heavy-oil bearing formation includes pre-heating of the formation by circulation of steam in a well, creating an excessive pressure inside the well during the pre-heating stage, stopping circulation of steam in the well, measuring temperature along a well bore of the well using distributed temperature sensors, wherein the measuring is performed from a moment at which steam circulation stops until a thermally stable condition is achieved, creating a conductive heat exchange model relating a quantity of steam penetrated into the formation to a local permeability of the formation, the model being created using the temperature measurement results of the pre-heating stage for solving an inverse problem, and determining the formation permeability profile from the created model.