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:
Oct. 01, 2019
Filed:
Feb. 10, 2015
Halliburton Energy Services, Inc., Houston, TX (US);
Kay Ann Galindo, Montgomery, TX (US);
Sandeep Kulkarni, Kingwood, TX (US);
Matthew Lynn Miller, Spring, TX (US);
Dale E. Jamison, Humble, TX (US);
Jessica Paola Ramirez Angulo, Kingwood, TX (US);
William Walter Shumway, Spring, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
The present disclosure relates to systems and methods for wellbore pressure control with separated fluid columns. One embodiment is a composition comprising: a base fluid, a hectorite clay, a secondary clay comprising at least one clay selected from the group consisting of an attapulgite clay, a sepiolite clay, a palygorskite clay, and any combination thereof, and a plurality of fibers. Another embodiment is a method comprising: introducing a first fluid into a wellbore; introducing a barrier pill into the wellbore, wherein the barrier pill comprises: a base fluid, a hectorite clay, and a plurality of fibers; and introducing a second fluid into the wellbore. Another embodiment is a method comprising: introducing a first fluid into a wellbore; introducing a barrier pill into the wellbore, wherein the barrier pill comprises: a base fluid, a hectorite clay, and a secondary clay comprising at least one clay selected from the group consisting of an attapulgite clay, a sepiolite clay, a palygorskite clay, and any combination thereof; and introducing a second fluid into the wellbore.