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Title: Thermal indicator for wells

Abstract

Minute durable plate-like thermal indicators are employed for precision measuring static and dynamic temperatures of well drilling fluids. The indicators are small enough and sufficiently durable to be circulated in the well with drilling fluids during the drilling operation. The indicators include a heat resistant indicating layer, a co-acting meltable solid component and a retainer body which serves to unitize each indicator and which may carry permanent indicator identifying indicia. The indicators are recovered from the drilling fluid at ground level by known techniques. 8 figs.

Inventors:
;
Publication Date:
OSTI Identifier:
7255293
Patent Number(s):
US 4390291; A
Application Number:
PPN: US 6-215085
Assignee:
Spectro-Systems, Inc., Oakton, VA (United States)
Resource Type:
Patent
Resource Relation:
Patent File Date: 10 Dec 1980
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 47 OTHER INSTRUMENTATION; DRILLING FLUIDS; ADDITIVES; TEMPERATURE MEASUREMENT; HEAT RESISTANT MATERIALS; PERFORMANCE; PHASE CHANGE MATERIALS; WELL DRILLING; DRILLING; FLUIDS; MATERIALS; 422000* - Engineering- Mining & Underground Engineering- (1980-); 440800 - Miscellaneous Instrumentation- (1990-)

Citation Formats

Gaven, Jr, J V, and Bak, C S. Thermal indicator for wells. United States: N. p., 1983. Web.
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Gaven, Jr, J V, & Bak, C S. Thermal indicator for wells. United States.
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Gaven, Jr, J V, and Bak, C S. 1983. "Thermal indicator for wells". United States.
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@article{osti_7255293,
title = {Thermal indicator for wells},
author = {Gaven, Jr, J V and Bak, C S},
abstractNote = {Minute durable plate-like thermal indicators are employed for precision measuring static and dynamic temperatures of well drilling fluids. The indicators are small enough and sufficiently durable to be circulated in the well with drilling fluids during the drilling operation. The indicators include a heat resistant indicating layer, a co-acting meltable solid component and a retainer body which serves to unitize each indicator and which may carry permanent indicator identifying indicia. The indicators are recovered from the drilling fluid at ground level by known techniques. 8 figs.},
doi = {},
url = {https://www.osti.gov/biblio/7255293}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 28 00:00:00 EDT 1983},
month = {Tue Jun 28 00:00:00 EDT 1983}
}
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