Conformable apparatus in a drill string

Hall, David R; Pixton, David S; Fox, Joe

Title: Conformable apparatus in a drill string

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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 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. The metal tube may be adapted to stretch as the drill pipes stretch.

Inventors:

Hall, David R ^[1]; Hall, Jr., H. Tracy ^[2]; Pixton, David S ^[3]; Fox, Joe ^[4]

Provo, UT
(Provo, UT)
Lehi, UT
Spanish Fork, UT

Issue Date:: 2007-08-28

Research Org.:: IntelliServ, Inc. (Provo, UT); Novatek Engineering, Inc.

Sponsoring Org.:: USDOE

OSTI Identifier:: 913339

Patent Number(s):: 7261154

Application Number:: 10/710,936

Assignee:: IntelliServ, Inc. (Provo, UT)

Patent Classifications (CPCs):: E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

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E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
E21B17/1007 - {for the internal surface of a pipe, e.g. wear bushings for underwater well-heads}
E21B29/10 - Reconditioning of well casings, e.g. straightening
E21B17/003 - {with electrically conducting or insulating means
E21B43/103 - {of expandable casings, screens, liners, or the like}

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DOE Contract Number:: FC26-01NT41229

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING

Citation Formats


                    Hall, David R, Hall, Jr., H. Tracy, Pixton, David S, and Fox, Joe. Conformable apparatus in a drill string.  United States: N. p., 2007. 
        Web.

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                    Hall, David R, Hall, Jr., H. Tracy, Pixton, David S, & Fox, Joe. Conformable apparatus in a drill string.  United States.

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                    Hall, David R, Hall, Jr., H. Tracy, Pixton, David S, and Fox, Joe. Tue .  
        "Conformable apparatus in a drill string".  United States.  https://www.osti.gov/servlets/purl/913339.

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@article{osti_913339,

  title        = {Conformable apparatus in a drill string},

  author       = {Hall, David R and Hall, Jr., H. Tracy and Pixton, David S and Fox, Joe},

  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 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. The metal tube may be adapted to stretch as the drill pipes stretch.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2007},

  month        = {8}

}

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