PRESSURE TESTING A WELLHEAD

Abstract: a wellhead isolation tool includes a hydraulic assembly including a hydraulic line fluidly and a setting tool hydraulic ram that includes a mandrel head; a mandrel coupled to the hydraulic ram and including an uphole end and a downhole end configured to sting into a wellhead; a packing assembly including a bore that is configured to receive the mandrel; and a pack-off cup assembly coupled to the downhole end. the pack-off cup assembly includes a cup mounted on the mandrel and including a circular frustum that includes an uphole end defined by a first diameter; a downhole end opposite the uphole end and defined by a second diameter less than the first diameter; a bore that extends between the uphole end and the downhole end and is configured to receive a least a portion of the mandrel; and a radial surface between the uphole and downhole ends.

Inventor(s): Mustafa Karakaya, Sohrat Baki

CPC Classification: E21B47/117 (Detecting leaks, e.g. from tubing, by pressure testing)

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