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:
Feb. 24, 2009
Filed:
Mar. 16, 2006
Brian S. Shaw, Broken Arrow, OK (US);
Ryan J. Morgan, Tulsa, OK (US);
Brian S. Shaw, Broken Arrow, OK (US);
Ryan J. Morgan, Tulsa, OK (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Devices and methods for selectively closing and opening flow of production fluid (oil, gas, or water) through the flowbore of a production string by chemically altering the phase of fluid media flowing through the production tubing to form a substantially solid plug or blockage. The phase of the fluid media is altered by selectively injecting a predetermined catalyst into a portion of the flowbore wherein it is desired to create a plug or blockage. When it is desired to remove the blockage, a dissolving agent is selectively added to the flowbore via a reversing sub to reverse the phase of the blockage from solid to liquid/gas. As the blockage is dissolved, flow is reestablished within the flowbore.