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.

Date of Patent:
Oct. 31, 2006

Filed:

Aug. 24, 2005
Applicants:

James F. Heathman, Katy, TX (US);

Sears T. Dealy, Comanche, OK (US);

James H. Cantrell, Duncan, OK (US);

Dennis W. Gray, Comanche, OK (US);

Inventors:

James F. Heathman, Katy, TX (US);

Sears T. Dealy, Comanche, OK (US);

James H. Cantrell, Duncan, OK (US);

Dennis W. Gray, Comanche, OK (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/16 (2006.01); E21B 49/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

Apparatus and methods for determining suitable displacement fluids for use in subterranean cementing operations, and methods of cementing that use such displacement fluids, are provided. Examples of methods include methods of water-wetting an annulus in a subterranean formation having an oleaginous-external/aqueous-internal fluid disposed on at least a portion of one or more surfaces of the annulus. Another example of a method is a method of using an inverter fluid in a subterranean formation that includes a tubular string disposed therein having an annular region adjacent the outer surface of the tubular string, at least part of the annular region having an oleaginous-external/aqueous-internal fluid on a surface thereof. Another example of a method of the present invention is a method of identifying an inverter fluid to use for inverting an oleaginous-external/aqueous-internal fluid in a subterranean formation.


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