Wellhead isolation tool and setting and method of using same

Details Wellhead isolation tool and setting and method of using same Wellhead isolation tool and setting and method of using same

1988-06-13

1989-09-19

Massie, IV, Jerome W.

Textiles: knitting

United needle machines

Straight

166 77, E21B 1900, E21B 3303, E21B 4325

Patent

active

048672432

ABSTRACT:
A well tree isolation apparatus comprising a single hydraulic cylinder supported in axial alignment over a well tree by at least two elongated support rods. The hydraulic cylinder support rods are connected between a base plate and a hydraulic cylinder mounting plate to support the hydraulic cylinder above the well tree a distance approximately equal to the height of the production tree. The apparatus permits the insertion of a single length of high pressure tubing through any well tree, regardless of its height. Once the high pressure tubing is seated in a well tubing or casing, the hydraulic cylinder, hydraulic cylinder plate and support rods are removed to provide 360.degree. access to a high pressure valve attached to the top of the high pressure tubing.

REFERENCES:
patent: 2927642 (1960-03-01), Meredith et al.
patent: 2927643 (1960-03-01), Dellinger
patent: 3830304 (1974-08-01), Cummins
patent: 4241786 (1980-12-01), Bullen
patent: 4460039 (1984-07-01), Knight
patent: 4632183 (1986-12-01), McLeod

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