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:
Mar. 23, 2010
Filed:
Nov. 06, 2007
John K. Montgomery, Houston, TX (US);
Stuart R. Keller, Houston, TX (US);
Nancy M. Krahel, Katy, TX (US);
Martin V. Smith, Friendswood, TX (US);
Robert S. Williamson, Montrose, GB;
John K. Montgomery, Houston, TX (US);
Stuart R. Keller, Houston, TX (US);
Nancy M. Krahel, Katy, TX (US);
Martin V. Smith, Friendswood, TX (US);
Robert S. Williamson, Montrose, GB;
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
A method of managing lost returns in a wellbore includes contacting a filter cake with a treating fluid to remove metallic weighting agents from the filter cake, wherein the filter cake is disposed on a face of a formation fracture in the wellbore. The method also includes contacting the filter cake with a proppant slurry, wherein the proppant slurry contacts the filter cake concurrently with the treating fluid or after the treating fluid contacts the filter cake. This method may include increasing the filter cake permeability and may utilize a barite removal agent, such as a chelation agent. At least one related wellbore management method creates a fracture in the wellbore and props open the fracture to increase wellbore integrity to utilize higher weight drilling fluids and prevent fractures from forming further down the wellbore.