通过吸附作用、压缩作用或冷却作用，从套管头气回收到的液态烃，为一种汽油。套管头气是从地面上的一口油井所采到的气体。
The liquid hydrocarbon recovered from casing head gas by adsorption, compression, or refrigeration. Casing head gas is the gas recovered at the surface from an oil well.
带电缆可回收的钻井锁组合是套管钻井的核心部分。
The wireline retrievable drill lock assembly is the heart of the casing drilling system.
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