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Title: Apparatus in a drill string

Abstract

An apparatus in a drill string comprises an internally upset drill pipe. The drill pipe comprises a first end, a second end, and an elongate tube intermediate the first and second ends. The elongate tube and the ends comprising a continuous an inside surface with a plurality of diameters. A conformable spirally welded metal tube is disposed within the drill pipe intermediate the ends thereof and terminating adjacent to the ends of the drill pipe. The conformable metal tube substantially conforms to the continuous inside surface of the metal tube. The metal tube may comprise a non-uniform section which is expanded to conform to the inside surface of the drill pipe. The non-uniform section may comprise protrusions selected from the group consisting of convolutions, corrugations, flutes, and dimples. The non-uniform section extends generally longitudinally along the length of the tube.

Inventors:
 [1];  [2];  [3];  [4];  [1]
  1. Provo, UT
  2. Alpine, UT
  3. (Provo, UT)
  4. Lehi, UT
Issue Date:
Research Org.:
IntelliServ, Inc. (Provo, UT)
Sponsoring Org.:
USDOE
OSTI Identifier:
913141
Patent Number(s):
7243717
Application Number:
10/711,454
Assignee:
IntelliServ, Inc. (Provo, UT)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
FC26-01NT41229
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Hall, David R, Dahlgren, Scott, Hall, Jr., Tracy H., Fox, Joe, and Pixton, David S. Apparatus in a drill string. United States: N. p., 2007. Web.
Hall, David R, Dahlgren, Scott, Hall, Jr., Tracy H., Fox, Joe, & Pixton, David S. Apparatus in a drill string. United States.
Hall, David R, Dahlgren, Scott, Hall, Jr., Tracy H., Fox, Joe, and Pixton, David S. Tue . "Apparatus in a drill string". United States. https://www.osti.gov/servlets/purl/913141.
@article{osti_913141,
title = {Apparatus in a drill string},
author = {Hall, David R and Dahlgren, Scott and Hall, Jr., Tracy H. and Fox, Joe and Pixton, David S},
abstractNote = {An apparatus in a drill string comprises an internally upset drill pipe. The drill pipe comprises a first end, a second end, and an elongate tube intermediate the first and second ends. The elongate tube and the ends comprising a continuous an inside surface with a plurality of diameters. A conformable spirally welded metal tube is disposed within the drill pipe intermediate the ends thereof and terminating adjacent to the ends of the drill pipe. The conformable metal tube substantially conforms to the continuous inside surface of the metal tube. The metal tube may comprise a non-uniform section which is expanded to conform to the inside surface of the drill pipe. The non-uniform section may comprise protrusions selected from the group consisting of convolutions, corrugations, flutes, and dimples. The non-uniform section extends generally longitudinally along the length of the tube.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {7}
}

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