Hollow glass microspheres has a good rolling performance, and it can increase the drilling rate, and Significantly improve the drilling efficiency.

空心玻璃微珠的滚动性能好，可提高机械钻速，从而显著提高钻井效率。

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Providers rotation torque to 17,500 ft-lbs (23,727 Nm) with variable rotation speed to 180 RPM for exceptional horizontal and direction drilling performance.

最高转矩17，500 英尺·磅（23，727 牛顿·米），可变转速最高180 转/分，带来无与伦比的水平钻井与定向钻井性能。

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To raise drilling performance of new micro-drill, a novel method was advanced for reginding of chisel edge.

为了提高新型微钻头的钻削性能，提出了一种适合于微钻头的横刃修磨原理及方法。

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The goal of the hearings is to examine the design and performance of the drilling rig's blowout preventer, a mammoth set of valves that is the last line of defense against an oil spill.

WSJ: Transocean Cites Safety in Bonuses

This is partly because of its poor fourth-quarter stock performance and partly because of recent favorable drilling reports.

FORBES: Magazine Article

In the fourth quarter of 2012 exploration behemoth Anadarko (APC) reported a 40% drop in drilling and completion time along with a 14% reduction in drilling costs in its Marcellus shale performance.

FORBES: My Prediction Was Wrong: Why We Didn't Get To $8 Natural Gas