×

Electro-hydraulic surface controlled subsurface safety valve actuator

  • US 6,269,874 B1
  • Filed: 04/29/1999
  • Issued: 08/07/2001
  • Est. Priority Date: 05/05/1998
  • Status: Expired due to Fees
First Claim
Patent Images

1. An actuation system for a downhole tool comprising:

  • a downhole actuation fluid reservoir;

    a fluid pump in communication with said reservoir and in communication with said tool;

    a motor connected to said fluid pump;

    a draw sensor connected to said motor for automatic shut-off of said motor; and

    a dump valve having access to pressurized fluid moving between said pump and said tool.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×