WELLHEAD ISOLATION TOOL AND SETTING DEVICE AND METHOD OF USING SAME

摘要

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 well 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 production 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.