Drilling well service的意思|示意

They are employed by drilling and well service contracting companies and by petroleum producing companies.

他们受雇于钻井、油井服务承包公司和石油生产公司。

Supervisors in this unit group supervise and co-ordinate the activities of workers engaged in drilling for oil or gas, operating service rigs, or providing oil and gas well services.

本单元组监督元监督和协调从事钻探石油或天然气，运营服务的钻机，或提供石油和天然气井技术服务的工人的活动。

They are employed by drilling and well service contractors and by petroleum producing companies.

钻探和服务承办商会雇佣这类人员而且他们也可以在石油生产公司就业。

Model QW50A Air Operated Slips is a wellhead tools. Mainly used to clipping tubing and drilling rod which raise or put down at well repairing service operation.

QW50A气动卡瓦是油田修井作业时，安装在井口上用于卡紧油管及类似管柱的一种工具。

Supervisors in this unit group supervise and co-ordinate the activities of workers engaged in drilling for oil or gas, operating service rigs, or providing oil and gas well services.

石油和天然气钻探和服务主管主管负责监督和协调从事石油或天然气钻探工作人员的相关工作，经营服务平台，或提供石油和天然气方面的服务。

Taking use of the shock absorber, it can raise the service life for drill bit and drill tool, speed up drilling, get rid of drilling jumping, well protect surface equipments and drilling tools.

所以在钻井作业中采用减震器，对于延长钻头使用寿命，加快钻进速度、克服严重跳钻、保证正常钻井、保护地面设备及钻具是十分可靠的。