- Irving TX, US Ann Kamel Fitzgerald - Dallas TX, US Theodore Lee Cottrell - Keller TX, US Phillip Graham Knight - Allen TX, US
International Classification:
E21B 34/06 E21B 21/10
Abstract:
A valve for limiting differential pressure applied to a downhole tool includes a housing and a movable piston/mandrel assembly therein. In a closed position, drilling mud or other fluid may be communicated through a central bore of the valve to the tool. When the differential pressure between the central bore and the wellbore exceeds a first predetermined value, the piston/mandrel assembly moves from a first position obstructing one or more relief ports to a second position not obstructing them, thereby providing a fluid path from the central bore of the valve to the wellbore bypassing the tool and relieving the differential pressure thereacross. When the differential pressure decreases to less than another preselected value, the piston/mandrel assembly returns to its original position again obstructing the relief ports. A trigger mechanism is provided to allow more precise control and separation of the preselected differential pressure values.
University Of Nebraska Medical Center Infectious Disease 985400 Nebraska Medical Ctr, Omaha, NE 68198 (402)5595392 (phone), (402)5595581 (fax)
UNMC PhysiciansNebraska Medicine Specialty Care Center 804 S 52 St, Omaha, NE 68106 (402)5592666 (phone), (402)5535527 (fax)
Languages:
English Spanish
Description:
Ms. Fitzgerald works in Omaha, NE and 1 other location and specializes in Infectious Disease. Ms. Fitzgerald is affiliated with Nebraska Medical Center.
The University of Kansas
Bachelors, Bachelor of Fine Arts, Industrial Design, Finance
The University of Kansas
Masters, Master of Arts, Design
University of Massachusetts Lowell
Master of Science, Masters, Engineering, Design
Skills:
Business Innovation Management Oil Painting Oil and Gas Industry Environment Drilling Engineering Innovation Management Strategic Planning Industrial Design Floriculture Adventure Travel Safety Philanthropy Watercolor Painting Watercolor Illustration Health
Motive Drilling Technologies
Product Manager
Pioneer Natural Resources Company Mar 2014 - Nov 2016
Drilling Engineer Ii - Planning Team, Permian Basin Night Foreman, Barnett Divesture
Pioneer Natural Resources Company Nov 2013 - Aug 2014
Operations Analyst - Corporate Drilling and Completions
Pioneer Natural Resources Company Aug 2012 - Nov 2013
Innovation Lead For Corporate Innovation - Ann Fitzgerald Llc Consultant
Procter & Gamble Dec 2010 - Jun 2012
External Global Innovation Facilitator - Ann Fitzgerald Llc Consultant
Education:
University of Massachusetts Lowell 2012
Master of Science, Masters, Design, Engineering
The University of Kansas 2008
Masters, Fine Arts
The University of Kansas 2008
Bachelors, Bachelor of Fine Arts
Skills:
Product Development Entrepreneurship Business Development Marketing Strategic Planning Manufacturing Cross Functional Team Leadership Business Strategy Energy R&D Competitive Analysis Management Project Management Product Design International Sales Training Engineering Sustainability Microsoft Office Research and Development Innovation Management Business Innovation Drilling Engineering Oil and Gas Iadc Well Control