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System and method for in situ testing of the leak-tightness of a tubular member

  • US 5,438,862 A
  • Filed: 02/14/1994
  • Issued: 08/08/1995
  • Est. Priority Date: 02/14/1994
  • Status: Expired due to Term
First Claim
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1. A system for in situ testing of the leak-tightness of a tubular member, comprising:

  • (a) a body insertable into the tubular member;

    (b) seal means surrounding said body for sealingly engaging the tubular member to define a sealed chamber in the tubular member to define a sealed chamber in the tubular member;

    (c) fluid supply means in fluid communication with the chamber for supplying a fluid to the chamber to pressurize the chamber to a predetermined pressure;

    (d) control means connected to said fluid supply means for controlling said fluid supply means, so that the predetermined pressure is continuously maintained in the chamber as a breach in the tubular member allows the fluid to leak from the chamber; and

    (e) pressure dampening means connected to said fluid supply means for dampening pressure spikes in said fluid supply means.

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