Abstract: Systems and methods for cooling a drive for downhole electric equipment such as an ESP, wherein the drive's electrical components are contained in one or more sealed enclosures to protect them from contaminants in external cooling air. In one embodiment, the drive has two sealed compartments that contain electrical components. Air internal to these compartments is circulated through air-to-air heat exchangers that are positioned in an adjacent duct. Alternating horizontal and vertical passageways through the heat exchangers are formed by flat plates that are offset from each other and connected alternately at their top/bottom and side edges. Air external to the sealed compartments is circulated through the duct to cool the heat exchangers. The amount of air circulated through each heat exchanger may be controlled by valves that regulate airflow through one or more outlets from the duct.

Abstract: Systems and methods for cooling a drive for downhole electric equipment such as an ESP, wherein the drive's electrical components are contained in one or more sealed enclosures to protect them from contaminants in external cooling air. In one embodiment, the drive has two sealed compartments that contain electrical components. Air internal to these compartments is circulated through air-to-air heat exchangers that are positioned in an adjacent duct. Alternating horizontal and vertical passageways through the heat exchangers are formed by flat plates that are offset from each other and connected alternately at their top/bottom and side edges. Air external to the sealed compartments is circulated through the duct to cool the heat exchangers. The amount of air circulated through each heat exchanger may be controlled by valves that regulate airflow through one or more outlets from the duct.