Apparatus in a drill string

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

Title: 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 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:

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

Provo, UT
Alpine, UT
(Provo, UT)
Lehi, UT

Issue Date:: 2007-07-17

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

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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}
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, Dahlgren, Scott, Hall, Jr., Tracy H., Fox, Joe, and Pixton, David S. Apparatus in a drill string.  United States: N. p., 2007. 
        Web.

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                    Hall, David R, Dahlgren, Scott, Hall, Jr., Tracy H., Fox, Joe, & Pixton, David S. Apparatus in a drill string.  United States.

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                    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.

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@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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