Leak detection in circulated fluid systems for heating subsurface formations
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United States of America Patent
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Jan 21, 2014
Grant Date -
Oct 13, 2011
app pub date -
Apr 8, 2011
filing date -
Apr 9, 2010
priority date (Note) -
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Abstract
A method of treating a subsurface formation includes circulating at least one molten salt through at least one conduit of a conduit-in-conduit heater located in the formation to heat hydrocarbons in the formation to at least a mobilization temperature of the hydrocarbons. At least some of the hydrocarbons are produced from the formation. An electrical resistance of at least one of the conduits of the conduit-in-conduit heater is assessed to assess a presence of a leak in at least one of the conduits.
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