Method and support apparatus for supporting down hole rotary tools

摘要

A portable frame assembly having a skid assembly for supporting a vertically oriented mast assembly is disclosed. The mast assembly is comprised of at least two column assemblies that may be extended or retracted vertically as desired. The mast assembly is translatable to slide horizontally on the skid assembly without the need for tracks or rollers by means of powered actuators to allow for a desired placement of the mast assembly. The portable frame assembly may be positioned adjacent a wellhead for the purpose of performing plug and abandon operations and may include a power swivel and other such hydraulic or mechanical tools for performing a variety of operations on a well including removing and plugging well casing strings, milling pipe strings, cement drilling, removing wellhead assemblies, or setting and pulling plugs from pipe strings.

主权项

1. A method for gripping and extracting a pipe from a well bore comprising the steps of:
(a) placing a skid assembly at a desired position adjacent a wellhead opening, said wellhead opening having an inserted pipe string, said skid assembly comprising:
(i) a horizontally oriented frame, said frame having longitudinally extending support beams, each said support beams having a top surface;(ii) a mast assembly, said mast assembly having at least two vertically extendable and retractable columns, each said vertically extendable and retractable column supported upon a longitudinally extending mast beam, each said longitudinally extending mast beam being, positioned so as to be supported directly upon one of said longitudinally extending support beams of said frame;(iii) at least one horizontally oriented actuator, said actuator having an extendible and retractable rod, said horizontally oriented actuator mounted between said skid assembly and said mast assembly whereby extension and retraction of said rod of said horizontally oriented actuator will slide said mast beams of said mast assembly directly upon and along said top surface of said support beams of said frame of said skid assembly towards and away from said wellhead opening; (b) providing an elevator assembly supported on said extendable and retractable columns of said mast assembly; (c) extending said rod of said horizontally oriented actuator and thereby sliding said mast beams of said mast assembly directly upon and along said top surface of said support beams of said frame of said skid thereby positioning said mast assembly at a desired position over said wellhead opening and said pipe string without a roller; (d) attaching said elevator assembly to said pipe string in said wellbore opening; and (e) supporting said pipe string on said elevator assembly.