在钻机或修井作业机的绞车中使用提升滚筒。
A hoisting drum is used in the drawworks of a drilling or workover rig.
油田的修井作业机是维护和保证采油生产不可缺少的施工机械，其主要用途是修井提升或下放油管、抽油杆等。
The workover rig is a necessary device to maintain and ensure mining technics in the oil field, and its main application is to elevate or drop oil pipes and pumps.
为解决油田修井作业落地油污染问题，研制出一种在不压井的前提下进行作业的防喷作业机。
To solve the pollution problem of dropping crude during field workover operation, a type of blowout controlling unit was researched and manufactured without the prerequisite of well control.
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