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Title: Portable apparatus and method for assisting in the removal and emplacement of pipe strings in boreholes

Abstract

A portable pipe installation/removal support apparatus for assisting in the installation/removal of a series of connectable pipe strings from a ground-level borehole. The support apparatus has a base, an upright extending from the base, and, in an exemplary embodiment, a pair of catch arms extending from the upright to define a catch platform. The pair of catch arms serves to hold an upper connector end of a pipe string at an operator-convenient standing elevation by releasably catching an underside of a pipe coupler connecting two pipe strings of the series of connectable pipe strings. This enables an operator to stand upright while coupling/uncoupling the series of connectable pipe strings during the installation/removal thereof from the ground-level borehole. Additionally, a process for installing and a process for removing a series of connectable pipe strings is disclosed utilizing such a support apparatus.

Inventors:
Issue Date:
Research Org.:
Univ. of California, Oakland, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175281
Patent Number(s):
6868923
Application Number:
10/233,227
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Mitchell, Brian R. Portable apparatus and method for assisting in the removal and emplacement of pipe strings in boreholes. United States: N. p., 2005. Web.
Mitchell, Brian R. Portable apparatus and method for assisting in the removal and emplacement of pipe strings in boreholes. United States.
Mitchell, Brian R. Tue . "Portable apparatus and method for assisting in the removal and emplacement of pipe strings in boreholes". United States. https://www.osti.gov/servlets/purl/1175281.
@article{osti_1175281,
title = {Portable apparatus and method for assisting in the removal and emplacement of pipe strings in boreholes},
author = {Mitchell, Brian R.},
abstractNote = {A portable pipe installation/removal support apparatus for assisting in the installation/removal of a series of connectable pipe strings from a ground-level borehole. The support apparatus has a base, an upright extending from the base, and, in an exemplary embodiment, a pair of catch arms extending from the upright to define a catch platform. The pair of catch arms serves to hold an upper connector end of a pipe string at an operator-convenient standing elevation by releasably catching an underside of a pipe coupler connecting two pipe strings of the series of connectable pipe strings. This enables an operator to stand upright while coupling/uncoupling the series of connectable pipe strings during the installation/removal thereof from the ground-level borehole. Additionally, a process for installing and a process for removing a series of connectable pipe strings is disclosed utilizing such a support apparatus.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {3}
}

Patent:

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