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. 08, 2019
Filed:
Oct. 31, 2013
Halliburton Energy Services, Inc., Houston, TX (US);
Thomas Paul Galley, Spring, TX (US);
Daniel M. Winslow, Spring, TX (US);
HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US);
Abstract
A control mechanism for a drill string tool is configured to activate the drill string tool by hydraulically actuated movement of the switching element to an activated position, with drilling mud serving as actuating medium. Movement of the switching element to the activated position is automatically regulated, so that tool activation is conditional upon application of above-threshold downhole drilling fluid conditions for at least a predetermined switching duration. A switch regulator that regulates movement of the switching element to the activated position can be configured to regulate a rate of movement of the switching element such that a substantially constant switching duration is maintained regardless of fluctuations in the magnitude of an actuating pressure differential during above-threshold downhole drilling fluid conditions.