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:
Jul. 17, 2018
Filed:
Feb. 20, 2013
Halliburton Energy Services, Inc., Houston, TX (US);
Paul David Ringgenberg, Frisco, TX (US);
HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US);
Abstract
A pressure responsive downhole tool includes a bi-directional collet utilized in conjunction with a pressure retaining chamber to control a ball valve utilizing a change in wellbore annulus pressure. Without substantially altering the pressure change between various operative functions, the tool can utilize the rate of pressure increase/decrease to drive the tool to different configurations. Initially, a pressure increase is utilized to engage the operation mechanism of a ball valve. Subsequently, the pressure increase can be utilized to open and close the ball valve. By varying the rate of the pressure increase and/or decrease, the position of the ball valve when the annulus pressure is bled off can be controlled, thereby permitting the ball valve to either closed when annulus pressure is decreased or remain locked-open when the annulus pressure is decreased.