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Pressure test method for permanent downhole wells and apparatus therefore

  • US 5,934,371 A
  • Filed: 06/25/1998
  • Issued: 08/10/1999
  • Est. Priority Date: 02/09/1995
  • Status: Expired due to Term
First Claim
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1. A remotely controlled shut-off valve and variable choke assembly comprising:

  • a housing having a longitudinal passage;

    a shut-off valve in said passage;

    at least one variable choke valve in said passage;

    a control assembly operatively connected to said shut-off valve and said variable choke valve for selectively actuating said valves between open and closed positions;

    an electronic controller in communication with said control assembly for actuating said control assembly.

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