钻井

However, as a new drive technology, there are many problems and issues to be investigated and be solved in oil rig as a potential alternative to the conventional SCR, for example, energy consumption brake technol...

给出了现场试验结果并对转盘控制系统的工作特性进行了分析，现场试验结果表明：该转盘控制系统的矢量调速方案及转速环、转矩电流环的设计是可行的、正确的，能够满足钻井工艺的要求。

The Model 2800 pneumatic plunger regulator is recommended for use in a variety of applications where mechanical actuation is required, including control stations and test panels, and in construction machinery and industrial or oil rig control equipment.

示范2800气动活塞调节，建议为在使用各种应用在机械驱动是必需的，包括控制站和测试面板，并在工程机械和工业或石油钻井平台的控制设备。

As a main power equipment in the oil-field, PZ12V190 Diesel engine plays a important role and works in hard conditions.

PZ12V190柴油机是油田钻井的主要动力设备，鉴于它地位的重要性以及恶劣的工作条件，及时有效地预测和发现故障可以极大地减少突发事故的发生，同时。。。

Thus a complete section of stratigraphic sequences from Oligocene to Quarternary is obtained, showing 5 second order sequences and 20 third order sequences.

自 1985年起，中国海洋石油东部公司微体古生物分析鉴定人员对珠江口盆地近 5 0口钻井的有孔虫化石进行了定量统计，为高分辨率生物地层划分与对比提供了丰富的资料。

UBD (Under-balanced Drilling) has been applied widely onshore to improve the development of oil and gas fields.

欠平衡钻井在国内外陆地油田已得到了广泛的推广和应用，可有效提高油气田开发效益。

The results are in favor of inquiring operating characteristic in drilling system deeply, and play an active role in maintaining system voltage stability.

该结论有利于深入了解钻井系统的运行特性，对维护系统电压稳定有着积极的作用。

It is the first time for the thickness isoline maps with a scale of 1: 1, 000, 000 of all the 10 formations of Ordovician were drawn based on various field sections, wells and interpretation of seismic profiles.

第一次在大量野外剖面、钻井剖面和全区系统的地震解释的基础上，作出了奥陶系以组为单位的1∶100万厚度等值线图。

According to data of research region and study degree in the basin , on the basis of core, outcrop and testing analysis indoor data etc.

在本文研究过程中，通过大量的钻井岩心、露头、室内测试分析等资料的综合分析，总结了盆地的地层特征和构造特征。

Second, even if a plateau is reached, it may indicate equilibrium with the higher local pore pressure induced by overbalance drilling .

其次，即使达到稳定期，它可能表明与过平衡钻井所诱发的较高本地孔隙压力取得平衡。

Proper well planning requires the hydrostatic head of the drilling fluid to overbalance the formation pressureby a certain safety margin.

合适的钻井计划需要使水面保持在一个确定的安全落差来平衡掉地层压力。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。