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:
Jun. 07, 2005
Filed:
Oct. 06, 2003
Tom R. Bratton, Kingwood, TX (US);
Bikash Kumar Sinha, West Redding, CT (US);
Thomas J. Plona, New Milford, CT (US);
Benjamin P. Jeffryes, Cambridgeshire, GB;
Tom R. Bratton, Kingwood, TX (US);
Bikash Kumar Sinha, West Redding, CT (US);
Thomas J. Plona, New Milford, CT (US);
Benjamin P. Jeffryes, Cambridgeshire, GB;
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Systems and methods for determining a formation property related to formation strength and stresses are disclosed. A method for determining a formation strength includes obtaining radial formation property measurements at different wellbore pressures; generating a radial stress profile based on a formation model; generating a radial stress function from the radial stress profile; and comparing the radial formation property measurements with the radial stress function to determine the formation strength. A method for determining a formation stress profile includes deriving formation parameters from a formation radial profiling; obtaining formation log data that comprise formation density data; estimating formation stresses from the formation log data; and deriving a radial stress profile based on a formation model, the derived formation parameters, and the estimated formation stresses.