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Title: Data transmission element for downhole drilling components

Abstract

A robust data transmission element for transmitting information between downhole components, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The data transmission element components include a generally U-shaped annular housing, a generally U-shaped magnetically conductive, electrically insulating element such as ferrite, and an insulated conductor. Features on the magnetically conducting, electrically insulating element and the annular housing create a pocket when assembled. The data transmission element is filled with a polymer to retain the components within the annular housing by filling the pocket with the polymer. The polymer can bond with the annular housing and the insulated conductor but preferably not the magnetically conductive, electrically insulating element. A data transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe.

Inventors:
 [1];  [1];  [2];  [1];  [3];  [1];  [2]
  1. (Provo, UT)
  2. (Lehi, UT)
  3. (Spanish Fork, UT)
Publication Date:
Research Org.:
Novatek Engineering Inc
OSTI Identifier:
880261
Patent Number(s):
US 6,992,554
Application Number:
10/707234
Assignee:
IntelliServ, Inc. (Provo, UT) NETL
DOE Contract Number:
FC26-97FT34365
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Hall, David R., Hall, Jr., H. Tracy, Pixton, David S., Dahlgren, Scott, Fox, Joe, Sneddon, Cameron, and Briscoe, Michael. Data transmission element for downhole drilling components. United States: N. p., 2006. Web.
Hall, David R., Hall, Jr., H. Tracy, Pixton, David S., Dahlgren, Scott, Fox, Joe, Sneddon, Cameron, & Briscoe, Michael. Data transmission element for downhole drilling components. United States.
Hall, David R., Hall, Jr., H. Tracy, Pixton, David S., Dahlgren, Scott, Fox, Joe, Sneddon, Cameron, and Briscoe, Michael. Tue . "Data transmission element for downhole drilling components". United States. doi:. https://www.osti.gov/servlets/purl/880261.
@article{osti_880261,
title = {Data transmission element for downhole drilling components},
author = {Hall, David R. and Hall, Jr., H. Tracy and Pixton, David S. and Dahlgren, Scott and Fox, Joe and Sneddon, Cameron and Briscoe, Michael},
abstractNote = {A robust data transmission element for transmitting information between downhole components, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The data transmission element components include a generally U-shaped annular housing, a generally U-shaped magnetically conductive, electrically insulating element such as ferrite, and an insulated conductor. Features on the magnetically conducting, electrically insulating element and the annular housing create a pocket when assembled. The data transmission element is filled with a polymer to retain the components within the annular housing by filling the pocket with the polymer. The polymer can bond with the annular housing and the insulated conductor but preferably not the magnetically conductive, electrically insulating element. A data transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe.},
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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  • An apparatus for installing data transmission hardware in downhole tools includes an insert insertable into the box end or pin end of drill tool, such as a section of drill pipe. The insert typically includes a mount portion and a slide portion. A data transmission element is mounted in the slide portion of the insert. A biasing element is installed between the mount portion and the slide portion and is configured to create a bias between the slide portion and the mount portion. This biasing element is configured to compensate for varying tolerances encountered in different types of downhole tools.more » In selected embodiments, the biasing element is an elastomeric material, a spring, compressed gas, or a combination thereof.« less
  • The present invention includes an element for use in an inductive coupler in a downhole component. The element includes a plurality of ductile, generally U-shaped leaves that are electrically conductive. The leaves are less than about 0.0625" thick and are separated by an electrically insulating material. These leaves are aligned so as to form a generally circular trough. The invention also includes an inductive coupler for use in downhole components, the inductive coupler including an annular housing having a recess with a magnetically conductive, electrically insulating (MCEI) element disposed in the recess. The MCEI element includes a plurality of segmentsmore » where each segment further includes a plurality of ductile, generally U-shaped electrically conductive leaves. Each leaf is less than about 0.0625" thick and separated from the otherwise adjacent leaves by electrically insulating material. The segments and leaves are aligned so as to form a generally circular trough. The inductive coupler further includes an insulated conductor disposed within the generally circular trough. A polymer fills spaces between otherwise adjacent segments, the annular housing, insulated conductor, and further fills the circular trough.« less
  • A precise downhole clock that compensates for drift includes a prescaler configured to receive electrical pulses from an oscillator. The prescaler is configured to output a series of clock pulses. The prescaler outputs each clock pulse after counting a preloaded number of electrical pulses from the oscillator. The prescaler is operably connected to a compensator module for adjusting the number loaded into the prescaler. By adjusting the number that is loaded into the prescaler, the timing may be advanced or retarded to more accurately synchronize the clock pulses with a reference time source. The compensator module is controlled by amore » counter-based trigger module configured to trigger the compensator module to load a value into the prescaler. Finally, a time-base logic module is configured to calculate the drift of the downhole clock by comparing the time of the downhole clock with a reference time source.« less
  • A system for transmitting information between downhole components has a first downhole component with a first mating surface and a second downhole component having a second mating surface configured to substantially mate with the first mating surface. The system also has a first transmission element with a first communicating surface and is mounted within a recess in the first mating surface. The first transmission element also has an angled surface. The recess has a side with multiple slopes for interacting with the angled surface, each slope exerting a different spring force on the first transmission element. A second transmission elementmore » has a second communicating surface mounted proximate the second mating surface and adapted to communicate with the first communicating surface.« less
  • A robust transmission element for transmitting information between downhole tools, such as sections of drill pipe, in the presence of hostile environmental conditions, such as heat, dirt, rocks, mud, fluids, lubricants, and the like. The transmission element maintains reliable connectivity between transmission elements, thereby providing an uninterrupted flow of information between drill string components. A transmission element is mounted within a recess proximate a mating surface of a downhole drilling component, such as a section of drill pipe. To close gaps present between transmission elements, transmission elements may be biased with a "spring force, urging them closer together."