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. 15, 2019

Filed:

Jan. 14, 2014
Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventors:

Donald Lee Whitfill, Kingwood, TX (US);

Sharath Savari, Stafford, TX (US);

Matthew L. Miller, Spring, TX (US);

Dale E. Jamison, Humble, TX (US);

Robert J. Murphy, Kingwood, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/00 (2006.01); C09K 8/42 (2006.01); E21B 33/138 (2006.01); C09K 8/504 (2006.01); C09K 8/508 (2006.01); C09K 8/512 (2006.01); C09K 8/514 (2006.01); C09K 8/52 (2006.01);
U.S. Cl.
CPC ...
C09K 8/426 (2013.01); C09K 8/5045 (2013.01); C09K 8/5083 (2013.01); C09K 8/512 (2013.01); C09K 8/514 (2013.01); E21B 21/003 (2013.01); E21B 33/138 (2013.01); C09K 8/52 (2013.01); C09K 2208/08 (2013.01);
Abstract

In some instances, a fluid loss control enhancement additive may synergistically work with lost circulation materials ('LCM') to arrest lost circulation in wellbores where LCMs alone have been ineffective. For example, a method may involve treating a wellbore penetrating a subterranean formation with a pill comprising an aqueous base fluid and a lost circulation material; observing fluid loss from the wellbore to the subterranean formation while treating the wellbore with the pill; and adding salt, a swellable polymer, and fibers to the pill.


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