well drill

If drill pipe can be risen to go out, the well is entered below bushing inside.

若钻杆能被起出, 则套管下入井内.

The paper discusses an automatic rectifying-deviation technique of drill during oil-well drilling, it is composed of automatic rectifying-deviation system, power generation system and switch power.

本文研究了一种油井钻探过程中钻头自动纠偏技术，其是由井下闭环自动纠偏系统、发电系统和开关电源三部分组成，本文主要围绕这三个部分展开研究和分析。

In the last chapter also briefly describes the PDC bit designed by this system, provided the use of this drill bit, as well as on-site testing and results.

也为PDC钻头的数字化加工打下基础。在本文的最后一章，还简要介绍了运用本文提供的系统设计钻头的情况，以及进行的现场试验及其结果。

In drilling exploration and well drilling Industry, the drilling pipe and drill collar are key apparatus.

钻杆和钻铤等管状螺纹连接件,是钻探和石油钻井工业中的关键设备.

The GZ-2000 type water source drill rig and TBW-850/ 50 mud pump were used in the test well construction, drilling depth 2202.98m.

该试验井施工使用GZ-2000型水源钻机，TBW-850/50型泥浆泵，钻探深度2202.98m。

Mechanics model for lengthwise vibration analysis of deep well drill string is established.

本文以整体钻柱为研究对象,建立了深井钻柱纵向振动分析的力学模型.

In addition to the fleetness connects single root, can also use at salvage the homework, search direction or demands the slow the artesian well tool that turn last, and drill the size rat hole use.

除快速接单根外，还可用在打捞作业，找寻方向或需要慢转的钻井工具上，以及钻大小鼠洞用。

LPR N testing valve is the main valve for testing drill stem of APR tools, of which the key role is to make true the close and open of well during testing period.

LPR N测试阀是APR工具测试管柱的主阀。其主要作用是实现测试中的开关井。

Calculating results show that fluctuation pressure decrease with eccentricity between drill stem and well bore increase.

计算结果表明:随钻柱与井眼间偏心度增大,波动压力减小.全偏心情况下的波动压力大约只有同心情况下的一半.

Type QQP Pneumatic spiders are utilized to grip drill pipe and tubing in oil well repairing.

QQP气动卡盘适用于油田修井作业中卡持钻杆、油管等.

Last week, Royal Dutch Shell was forced to temporarily abandon attempts to drill the first well in Alaska in two decades, after a piece of safety equipment was damaged during testing.

上周，荷兰皇家壳牌（Royal Dutch Shell）被迫暂停钻探阿拉斯加20年来第一口油井的努力，此前一件安全设备在测试中严重受损。