Apparatus and method for maintaining low temperatures about an object at a remote location

Title: Apparatus and method for maintaining low temperatures about an object at a remote location

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Abstract

The disclosure is directed to an apparatus and method for maintaining a body at cryogenic temperatures at a remote location such as down a borehole for an extended period of time. A housing contains a body comprising a material having a high specific heat at cryogenic temperatures such as between about 2 and 15 K. The body contains an orifice for containing an instrument or instruments operable at superconducting temperatures. The apparatus is precooled at the surface and lowered into a borehole to a desired depth, such as 2 to 3 miles. The instruments are operated, and the apparatus withdrawn, the material of the body maintaining the very low temperatures at which the instrument(s) operate for a sufficient period of time at the remote or downhole location. The material may comprise a rare earth compound, such as Gd.sub.2 O.sub.3, Gd.sub.2 Se.sub.3, Gd.sub.2 O.sub.2 S or GdAlO.sub.3. Monoclinic and C-phase gadolinium oxides work well. A low temperature is maintainable at a remote location for several hours.

Inventors:

Steyert, Jr., William A. ^[1]; Overton, Jr., William C. ^[1]

(Los Alamos, NM)

Issue Date:: 1982-01-01

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

OSTI Identifier:: 864270

Patent Number(s):: 4340405

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: G - PHYSICS G12 - INSTRUMENT DETAILS G12B - CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25D - REFRIGERATORS

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G - PHYSICS G12 - INSTRUMENT DETAILS G12B - CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILS OF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR
G12B15/00 - Cooling

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25D - REFRIGERATORS
F25D3/00 - Devices using other cold materials

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S505/889 - Utilizing rare earth material

F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25D - REFRIGERATORS
F25D3/10 - using liquefied gases, e.g. liquid air {

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
G01V3/18 - specially adapted for well-logging

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DOE Contract Number:: W-7405-ENG-36

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: apparatus; method; maintaining; temperatures; remote; location; disclosure; directed; cryogenic; borehole; extended; period; time; housing; contains; comprising; material; specific; heat; 15; orifice; containing; instrument; instruments; operable; superconducting; precooled; surface; lowered; desired; depth; miles; operated; withdrawn; operate; sufficient; downhole; comprise; rare; earth; compound; gd; gdalo; monoclinic; c-phase; gadolinium; oxides; temperature; maintainable; hours; specific heat; cryogenic temperature; superconducting temperatures; cryogenic temperatures; rare earth; remote location; sufficient period; extended period; earth compound; housing contains; desired depth; gadolinium oxide; downhole location; superconducting temperature; /62/165/505/

Citation Formats


                    Steyert, Jr., William A., and Overton, Jr., William C. Apparatus and method for maintaining low temperatures about an object at a remote location.  United States: N. p., 1982. 
        Web.

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                    Steyert, Jr., William A., & Overton, Jr., William C. Apparatus and method for maintaining low temperatures about an object at a remote location.  United States.

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                    Steyert, Jr., William A., and Overton, Jr., William C. Fri .  
        "Apparatus and method for maintaining low temperatures about an object at a remote location".  United States.  https://www.osti.gov/servlets/purl/864270.

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@article{osti_864270,

  title        = {Apparatus and method for maintaining low temperatures about an object at a remote location},

  author       = {Steyert, Jr., William A. and Overton, Jr., William C.},

  abstractNote = {The disclosure is directed to an apparatus and method for maintaining a body at cryogenic temperatures at a remote location such as down a borehole for an extended period of time. A housing contains a body comprising a material having a high specific heat at cryogenic temperatures such as between about 2 and 15 K. The body contains an orifice for containing an instrument or instruments operable at superconducting temperatures. The apparatus is precooled at the surface and lowered into a borehole to a desired depth, such as 2 to 3 miles. The instruments are operated, and the apparatus withdrawn, the material of the body maintaining the very low temperatures at which the instrument(s) operate for a sufficient period of time at the remote or downhole location. The material may comprise a rare earth compound, such as Gd.sub.2 O.sub.3, Gd.sub.2 Se.sub.3, Gd.sub.2 O.sub.2 S or GdAlO.sub.3. Monoclinic and C-phase gadolinium oxides work well. A low temperature is maintainable at a remote location for several hours.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1982},

  month        = {1}

}

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