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:
Apr. 03, 2012
Filed:
Jun. 18, 2007
James R. Bragg, Houston, TX (US);
Joseph P. Lederhos, Houston, TX (US);
Sergio A. Leonardi, Pearland, TX (US);
Scott E. Hommema, Pearland, TX (US);
Amy L. Chen, Cypress, TX (US);
Shan H. Yang, Sugar Land, TX (US);
James R. Bragg, Houston, TX (US);
Joseph P. Lederhos, Houston, TX (US);
Sergio A. Leonardi, Pearland, TX (US);
Scott E. Hommema, Pearland, TX (US);
Amy L. Chen, Cypress, TX (US);
Shan H. Yang, Sugar Land, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying agent and a solvent. The emulsion is formulated to be a liquid at a temperature greater than a targeted temperature in the subsurface formation, but a solid at the targeted temperature. The targeted temperature is typically the maximum operating temperature for the formation. A method of formulating the emulsion is also provided. Further, a method of plugging a high permeability zone using the emulsion is disclosed.