查询词典 drilling stem

Air and gas drilling is one of the most promising under-balanced drilling technology, which is developing at a surprising speed.

气体钻井技术是目前正在迅速发展的欠平衡钻井技术中的一种。

This paper presented some main factors affecting the development of revolving-drilling technique.Finally,the paper presented the problems existed in the aspect of using air hammer for geophysical drilling and the direction of studied d...

阐述了影响冲击旋转钻井技术发展的主要因素，提出了气动冲击器用于物探钻井开发方面存在的问题和研究方向。

By analysis of enforcement of drilling tools of air downhole hammer 's following pipe, the factors affecting the drilling speed and depth of the following pipe are obtained.

通过对空气潜孔锤跟管钻进钻具的受力分析，得到影响潜孔锤跟管钻进速度和跟管深度的因素。

The air DTH hammer drilling technically mainly used for drilling, shotting drills and wells in the past.

风动潜孔锤钻进技术过去主要用于钻凿爆破孔、基岩水井等。

It also analyzes the reasonable method to determine such drilling parameters as drill pressure,rotation speed,gas injection pressure,gas injection volume in view of the character of air hammer drilling in detail,elabora.

分析了我国煤层气勘探开发现状，基于煤层气生产特征分析了煤层气开发向产业化、商业化发展降低钻井成本的主要技术方法。

In order to implement simultaneous casing while drilling of larger diameter pile holes and water wells in complex strata, a new type of bit for simultaneous casing while reverse circulation drilling with DTH air hammer was developed.

为实现在复杂地层用同步跟管钻进工艺钻凿直径较大的桩孔和水井，设计了一种气动潜孔锤反循环跟管钻进钻头。

Finally,the method and procedure of calculating downhole bit weight by use of the drilling weight and apparent pressure during drilling are proposed in the paper also.

并给出了利用钻进时的钻重和视压力，计算出井底钻压的方法及步骤。

It now processes solid technical strength and advanced technological equipment, specializing in producing diamond tools :metallic bonding agent, resin bonding agent and rubber bonding agent, Various diamond grinders,core drilling machine, grinding head for fine engraving ,various special polishing wheels (The tool of special use sole diamond wheel), diamond drilling bit,diamond fingers-trimmer,and all kinds of glass special use polish wheel have been the optimum assorter for the glass deep-processing machine and sole proceessing machine.

现拥有 雄厚的技术力量和先进的工艺设备。专业生产：金属结合剂、树脂结合剂、橡胶结合剂系列金刚石工具，如各式金刚石砂轮，金刚石钻头，精雕磨头，金刚石修指器，各式玻璃专用抛光轮等工具。

It now processes solid technical strength and advanced technological equipment,specializing in producing diamond tools :metallic bonding agent,resin bonding agent and rubber bonding agent,Various diamond grinders,core drilling machine,grinding head for fine engraving ,various special polishing wheels(The tool of special use sole diamond wheel), diamond drilling bit,diamond finger-trimmer,and all kinds of glass special use polish wheel have been the optimum assorter for the glass deep-processing machine and sole proceessing machine.

现拥有雄厚的技术力量和先进的工艺设备，专业生产：金属结合剂、树脂结合剂、橡胶结合剂系列金刚石工具，如各式金刚石砂轮，金刚石钻头，精雕磨头，金刚石修指器，各式玻璃专用抛光轮等工具。

Backfill drilling hole system is a complex gray system, and backfill drilling hole's life relating to a lot of uncertainty factors.

充填钻孔系统是一个复杂的灰色系统，钻孔的使用寿命与很多不确定性因素有关。

I want to be a big fish in a small pond.

我要做一条在小池塘里的大鱼。

While the software functioned well, we did not feel the same about their customer support!

虽然该软件运行良好，我们没有同样的感觉他们的客户支持！