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Title: Drilling jar for use in a downhole network

Abstract

Apparatus and methods for integrating transmission cable into the body of selected downhole tools, such as drilling jars, having variable or changing lengths. A wired downhole-drilling tool is disclosed in one embodiment of the invention as including a housing and a mandrel insertable into the housing. A coiled cable is enclosed within the housing and has a first end connected to the housing and a second end connected to the mandrel. The coiled cable is configured to stretch and shorten in accordance with axial movement between the housing and the mandrel. A clamp is used to fix the coiled cable with respect to the housing, the mandrel, or both, to accommodate a change of tension in the coiled cable.

Inventors:
; ; ; ;
Publication Date:
Research Org.:
IntelliServ, Inc., Provo, UT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175635
Patent Number(s):
6,991,035
Application Number:
10/653,604
Assignee:
IntelliServ, Inc. (Provo, UT) OSTI
DOE Contract Number:  
FC26-01NT41229
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Hall, David R., Fox, Joe, McPherson, James, Pixton, David S., and Briscoe, Michael. Drilling jar for use in a downhole network. United States: N. p., 2006. Web.
Hall, David R., Fox, Joe, McPherson, James, Pixton, David S., & Briscoe, Michael. Drilling jar for use in a downhole network. United States.
Hall, David R., Fox, Joe, McPherson, James, Pixton, David S., and Briscoe, Michael. Tue . "Drilling jar for use in a downhole network". United States. doi:. https://www.osti.gov/servlets/purl/1175635.
@article{osti_1175635,
title = {Drilling jar for use in a downhole network},
author = {Hall, David R. and Fox, Joe and McPherson, James and Pixton, David S. and Briscoe, Michael},
abstractNote = {Apparatus and methods for integrating transmission cable into the body of selected downhole tools, such as drilling jars, having variable or changing lengths. A wired downhole-drilling tool is disclosed in one embodiment of the invention as including a housing and a mandrel insertable into the housing. A coiled cable is enclosed within the housing and has a first end connected to the housing and a second end connected to the mandrel. The coiled cable is configured to stretch and shorten in accordance with axial movement between the housing and the mandrel. A clamp is used to fix the coiled cable with respect to the housing, the mandrel, or both, to accommodate a change of tension in the coiled cable.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 31 00:00:00 EST 2006},
month = {Tue Jan 31 00:00:00 EST 2006}
}

Patent:

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