Patent ID: 8453738
Filing Date: 2013-06-04
Classification: E21B

Abstract:
1. A subterranean tool configured to operate at elevated temperatures downhole in a well traversing a formation, comprising: a tool conveyance configured for deployment in the well; a downhole tool comprising high-temperature sensitive components attached to the tool conveyance; and a downhole cooling system, comprising: the subterranean tool further comprising: an inverted Y tubular junction, wherein an upper end of the Y tubular junction is configured for connection with an upper portion of the tool conveyance extending from the surface of the well; a first lower end of the Y tubular junction is configured for connection with a lower portion of the tool conveyance extending downhole into the well, the lower portion of the tool conveyance comprising a plurality of tool cartridges or shuttles for deployment in the well; a second lower end of the Y tubular junction is configured for connection with the cooling fluid conduit, the cooling fluid conduit being attached to the lower portion of the tool conveyance; and a plug in the inverted Y tubular junction such that cooling fluid flowing through the upper portion of the tool conveyance flows into the cooling fluid conduit and does not flow into the lower portion of the tool conveyance.