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Anordning og fremgangsmåte for kjøling av nedihullsverktøy, samt anvendelse av et forhåndskjølt, massivt kuldekildelegeme som en kuldekilde for en kjølekretstermisk forbundet med et nedihullsverktøy
Anordning og fremgangsmåte for kjøling av nedihullsverktøy, samt anvendelse av et forhåndskjølt, massivt kuldekildelegeme som en kuldekilde for en kjølekretstermisk forbundet med et nedihullsverktøy
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机译:用于冷却井下工具的装置和方法,以及使用预冷的固态冷源体作为热连接到井下工具的冷却回路的冷却源
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摘要
A downhole tool cooling device (2) is described, wherein a downhole tool (1) is thermally coupled to a rechargeable cold source (21) comprising a solid cold source body (211) being contained in an insulated cooling medium vessel (22), and wherein the downhole tool (1) is thermally coupled to the cold source (21) by means of a cooling circuit (23) comprising a first heat exchanger (11) arranged at the downhole tool (1) and in a fluid communicating manner being interconnected with a second heat exchanger (231) arranged in the solid cold source body (211), wherein a refrigeration system (5) is thermally coupled to the cold source (21) during a downhole operation of the cooling device (2). Furthermore is described a method for cooling a downhole tool (1). Also is described use of a pre-cooled solid cold source body (211) contained in an insulated cooling medium vessel (22) as a cold source (21) for a cooling circuit (23) being thermally coupled to a downhole tool (1) being in the need of cooling during downhole operations.
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