If the wellhead pressure exceeds that of the pipeline, then the gas can be passed through a choke or throttled in a constant-enthalpy Joule-Thomson expansion to provide cooling.
如果井口压力超过管道所需的压力，则可使气体通过节流件，以等焓焦耳-汤姆逊膨胀获取冷量。
If the wellhead pressure exceeds that of the pipeline, then the gas can be passed through a choke or throttled in a constant-enthalpy Joule-Thomson expansion to provide cooling.
如果井口压力超过管道所需的压力，则可使气体通过节流件，以等焓焦耳-汤姆逊膨胀获取冷量。
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