Global to push GA events into
skip to main content

Title: System and method for damping vibration in a drill string

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.
Inventors:
 [1];  [2];  [3];  [3]
  1. Kingwood, TX
  2. Durham, CT
  3. Middletown, CT
Issue Date:
OSTI Identifier:
1025577
Assignee:
APS Technology, Inc. (Wallingford, CT) NETL
Patent Number(s):
7,997,357
Application Number:
12/109,328
Contract Number:
FC26-02NT41664
Research Org:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING