For industrial drilling wellhead solidified gel ingredients, improve the viscosity.

用于工业钻探井口凝固胶体配料、提高粘度。

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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。

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It is necessary for deepwater drilling to analyse the geological data in shallow formation and mechanical stability of wellhead.

有必要通过现场取样获得浅部地层的地质资料，对深水钻井井口力学稳定性进行分析。

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As the oil industry consolidates, drilling for natural gas, whose wellhead price has held relatively steady -- at least compared with oil -- helps keep Dawson and his crews busy.

FORBES: The case for oil

Meanwhile, drilling for natural gas -- whose wellhead price has held relatively steady, at least compared with oil -- helps keep Dawson and his crews busy.

FORBES: Optimistic on oil