Cryogenic cleaning methods for reclaiming and reprocessing oilfield tools
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United States of America Patent
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Dec 2, 2014
Grant Date -
May 8, 2014
app pub date -
Nov 7, 2013
filing date -
Nov 7, 2012
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Abstract
The disclosure relates to the cleaning of rods made of metal, particularly to the method of reclamation of used standard length rods, such as pump rods already used in the mechanical deep-pumping extraction of oil, as well as to the product made with the help of the mentioned method. The method of remanufacturing of standard length rods includes cleaning the rod with cryogenic liquids to eliminate environmental contamination and to assist in workplace safety.
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