casing head

基本解释

Through several year's research, a new type of casing head in view of the problems encountered in preceding stress cementing in thermal production well.
针对稠油热采井预应力固井中存在的问题，研制了一种适用于稠油热采井预应力固井的新型套管头。
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.
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。
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This article presented the research on matching technology of casing head and gas-producing wellhead for guaranteeing the safety of drilling and production test operation.
由于套管头和采气井口油管头牵涉到钻井和试油作业中的井口组合，为保证钻井和试油作业时配套使用的安全，要进行配套技术研究。

And so all you're left with is the little casing head, and usually a water collection tank at the top.
NPR: Drilling for Gas in Dallas-Fort Worth