Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

System and method for damping vibration in a drill string

Patent ·
OSTI ID:1169117
; ; ;

A system for damping vibration in a drill string can include a valve assembly having a supply of a fluid, a first member, and a second member capable of moving in relation to first member in response to vibration of the drill bit. The first and second members define a first and a second chamber for holding the fluid. Fluid can flow between the first and second chambers in response to the movement of the second member in relation to the first member. The valve assembly can also include a coil or a valve for varying a resistance of the fluid to flow between the first and second chambers.

Research Organization:
APS Technology, Inc., Wallingford, CT (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-02NT41664
Assignee:
APS Technology, Inc. (Wallingford, CT)
Patent Number(s):
8,944,190
Application Number:
14/155,220
OSTI ID:
1169117
Country of Publication:
United States
Language:
English

References (5)

The Design of Steerable BHA's To Minimize the Adverse Effects of Motor Imbalance and Drilling Forces conference October 1991
Shock Sub Performance Tests conference March 1998
Experimental Evaluations of Drill Bit and Drill String Dynamics conference September 1994
Field Investigation of the Effects of Stick-Slip, Lateral, and Whirl Vibrations on Roller Cone Bit Performance conference October 1999
Phenomenological Model of a Magneto-rheological Damper for Semi-active Suspension Control Design and Simulation conference November 2006

Similar Records

Related Subjects

42 ENGINEERING