Subsurface drill string

William L Casper; Don T Clark; Blair K Grover; Rodney O Mathewson; Craig A Seymour

Subsurface drill string

William L Casper (Inventor), Don T Clark (Inventor), Blair K Grover (Inventor), Rodney O Mathewson (Inventor), Craig A Seymour (Inventor)

Fuel Fabrication & Nuclear Materials Management

Research output: Patent

Abstract

A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square threads, the male end having a non-threaded extension portion coaxial with the threaded portion, and the male end further having a bearing surface, the female end having a female threaded portion having corresponding female threads, the female end having a non-threaded extension portion coaxial with the female threaded portion, and the female end having a bearing surface. Installation methods, including methods of installing instrumented probes are also provided.

Original language	American English
Patent number	7,431,348
State	Published - Oct 2008

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http://www.osti.gov/scitech/servlets/purl/985416

Cite this

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title = "Subsurface drill string",

abstract = "A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square threads, the male end having a non-threaded extension portion coaxial with the threaded portion, and the male end further having a bearing surface, the female end having a female threaded portion having corresponding female threads, the female end having a non-threaded extension portion coaxial with the female threaded portion, and the female end having a bearing surface. Installation methods, including methods of installing instrumented probes are also provided.",

author = "Casper, {William L} and Clark, {Don T} and Grover, {Blair K} and Mathewson, {Rodney O} and Seymour, {Craig A}",

year = "2008",

month = oct,

language = "American English",

type = "Patent",

note = "7,431,348",

}

TY - PAT

T1 - Subsurface drill string

AU - Casper, William L

AU - Clark, Don T

AU - Grover, Blair K

AU - Mathewson, Rodney O

AU - Seymour, Craig A

PY - 2008/10

Y1 - 2008/10

N2 - A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square threads, the male end having a non-threaded extension portion coaxial with the threaded portion, and the male end further having a bearing surface, the female end having a female threaded portion having corresponding female threads, the female end having a non-threaded extension portion coaxial with the female threaded portion, and the female end having a bearing surface. Installation methods, including methods of installing instrumented probes are also provided.

AB - A drill string comprises a first drill string member having a male end; and a second drill string member having a female end configured to be joined to the male end of the first drill string member, the male end having a threaded portion including generally square threads, the male end having a non-threaded extension portion coaxial with the threaded portion, and the male end further having a bearing surface, the female end having a female threaded portion having corresponding female threads, the female end having a non-threaded extension portion coaxial with the female threaded portion, and the female end having a bearing surface. Installation methods, including methods of installing instrumented probes are also provided.

M3 - Patent

M1 - 7,431,348

ER -

Subsurface drill string

Abstract

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