balance pressure

Technical difficulties and Countermeasures of carbonate reservoir under-balance pressure drilling

碳酸盐岩储层欠平衡钻井技术难点与对策碳酸亚乙烯酯的合成

In the process of balance pressure drilling in fractured carbonate formation, fluid loss is possible when the hole penetrates the fracture.

碳酸盐裂缝性地层，在平衡钻进过程中，一旦钻遇裂缝，就可能发生井漏。

Under balance pressure drilling of Bo-601 well

渤601井欠平衡钻井技术

That would keep the pressure on bank balance sheets, keeping credit tight.

这将对银行资产负债表带来持续压力, 令信贷保持在紧缩状态.

The result show that the effect of tonsil vegetation on pharyngotympanic tube function of balance pressure is mild or moderate, and that can not result in tympanic cavity effusion.

结果表明：肥大性扁桃体对咽鼓管气压平衡的功能具有一定的影响，大多数属于轻度和中度，一般不诱发鼓室积液。

Approach to earth balance pressure of shield tunneling across ultra-near metro tunnel in operation

盾构近距离穿越施工的工作面土压力研究

The formation pressure prediction by the efficiency stress method may offer dependable parameters for drilling design and balance pressure drilling.

介绍了有效应力法预测地层压力的原理及参数的求取方法。

The geological design and engineering design of Bo-601 well, the main technical difficulties in drilling construction, and the pre-drilling preparation, drilling, completing and construction result of the under balance pressure drilling of Bo-601 well are introduced in detail.

结合渤601井实际情况，给出了地质设计和工程设计，分析了施工过程中主要技术难点，介绍了钻前准备工作、欠平衡钻进、完井和施工效果。

Relax pressure and tired , balance centrum nerve.

舒缓精神紧张,减缓工作压力平衡中枢神经.

China is wanted the pressure that begs a RMB to appreciate ceaselessly by the United states, with favourable balance pressure.

中国不断受到美国要求人民币升值的压力，和顺差压力。

Under balance pressure drilling techniques of the horizontal well and high

塔里木轮南奥陶系碳酸盐岩高压油气藏水平井及大斜度井欠平衡钻井技术

Formation damage can be prevented by reducing differential pressure, using aerated drilling fluid, choosing the lowest over balance pressure or reducing the interface tension of gas and water.

采用减小生产压差、应用气体或含气钻井液、合理选择最小过平衡压力或减小气水界面张力的方法，可以预防和减轻地层损害。

In this paper the heat balance of pressure leaching for zinc sulphide concentrate is calculated.

笔者对硫化锌精矿加压浸出过程的热平衡进行了计算.

The effect of tonsil vegetation on pharyngotympanic tube function of balance pressure

肥大性扁桃体对咽鼓管气压平衡功能的影响

It should have high density so as to balance pressure and improve the displacement efficiency in the well cementation for more and more high-density drilling fluid used in complex deep wells.

由于复杂深井中高密度钻井液的使用越来越多，因此在固井中为平衡压力、提高顶替效率，要求隔离液也有相应的高密度。

The result would be weaker domestic demand, more balance sheet pressure and more financial stress.

结果，国内需求将会减弱，资产负债表压力和金融压力将会加大。

It is a key to how to balance the pressure from between the optimization of objective function and the satisfaction of constraints.

解决约束优化问题的关键是如何平衡来自目标函数最优化与满足约束条件这两方面的压力。

Under balance pressure drilling technology and coalbed gas development

欠平衡钻井技术与煤层气开发

Earth pressure balance ( EPB ) shield is used most extensively in shield construction.

土压平衡式 盾构 机是盾构法施工中应用最为广泛的盾构机.

Auto control of soil pressure balance for pressure inserted tube excavator

顶管掘进机土压平衡的自动化控制

This alloy is easy to be activated, balance pressure is moderate and flat, and the difference of balance pressure between the hydrogen absorbing and releasing is little.

在气态储氢方面，合金活化容易、平衡压力适中且平坦、吸放氢平衡压力差小等特性。

By increasing negative surface, controlling the charge state of positive and negative and controlling electrolyte volume in cell, we have solved the problem of oxygen combination during charge so that the internal balance pressure of charged battery was only 0.045 MPa.

通过增大负极面积、控制正负极荷电状态和电液量，较好地解决了充电时氧气的迅速复合问题，使电池充电平衡内压达到0.045MPa；

Thirdly the expanded gas was introduced to a dynamic flow system and the dynamic balance partial pressure of test gas was measured and compared.

静态膨胀后，测量它们在动态流量法系统中产生的动态平衡分压力，再进行线性近似比较计算出被校正压漏孔的漏率。

Designing of balance cage pressure reducing valve

平衡套筒式减压阀设计

Air drilling, as a member of under balance pressure drilling family, is different from conventional drilling methods.

气体钻井是一种与传统钻井方式相比有着很大区别的欠平衡钻井。

Carnelian: Balance creativity and mental processes. Helps asthma, and blood pressure .2 nd chakra.

玛瑙: 平衡创造力和精神程序, 有助于治疗哮喘, 血压,用于第二个穴位.

Technique and technology for under balance pressure drilling with foam fluid

欠平衡泡沫流体钻井工艺技术

In design of multi-axis force sensor used in underwater robot, the problem how to balance hydraulic pressure must be resolved firstly.

水下机器人用多轴力传感器的设计必须首先解决水压力平衡的问题。

Torricelli's work on water barometers showed that the pressure of the atmosphere could balance a column of water just over 30 feet in height.

托里切利在水银气压计方面的研究表明大气的压力可以让气压计中的水银柱上升30多英尺。

Based on careful analysis, it is considered that the root causing the complex accident is the pressure difference between the balance pressure needed and the actual water static pressure down hole.

本文通过分析得出，造成大26井井壁坍塌及其后的井下复杂情况的根本原因是起钻所需平衡压力与实钻井底水静压力之间存在压差。