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Science // Equipment

Weatherford introduces V0-qualified retrievable well barrier

25 September 2017 , 00:01Neftegaz.RU574

Weatherford announced the commercial release of the ISO Extreme retrievable well barrier, which is qualified to ISO 14310 V0 standards for gas-tight isolation.

The barrier has a large operational envelope: it is capable of withstanding pressure differentials up to 10,000 psi (68.95 MPa) and temperatures between 40 and 325°F (4 and 163°C), which reduces the loss-of-containment risk in extreme environments.

ISO Extreme well barriers are available for tubing sizes from 3.5 through 7 in.
The variety of deployment options - including electric line, slickline, tubing and coiled tubing - further increases operational flexibility.

Unlike comparable technologies available for the HPHT market, the ISO Extreme barrier does not require any nipple profiles and is retrieved by first shifting down to equalize the pressures then jarring up to release.
This safety feature reduces the risk of trapped pressure below the plug prior to releasing.

Additionally, the small diameter of the plug enables passage through typical wellbore restrictions for easy deployment and removal even in challenging environments.