井

The analysis result shows that Kun 2# well and its vicinities is the beneficial oil-gas bearing province in Kunyite depression, and the sealing of Kun 1# fault zone is well, and the well wall in Kun 2# well region is relatively stable.

分析结果显示，昆2井及其附近地区为该凹陷的有利成藏地区，且昆1断裂带的封闭性较好，昆2井地区井壁较为稳定

And the main overtone source load is the new well 3 meters 25 winches and the auxiliary shaft winch.

其中主要谐波源负载为新井3 m25绞车和副井绞车。

The acoustic phased arc array transmitter can be used in azimuthal acoustic reflection logging. It evaluates the azimuthal variation of borehole formation acoustic properties, which is useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器用于方位反射声波测井新技术中，可评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

The acoustic phased arc array transmitter can be used in azimuth acoustic reflection logging and evaluate the azimuth variation of acoustic properties in the borehole formation and also be useful for complex reservoir recognition and evaluation.

这种相控圆弧阵声波辐射器可用于方位反射声波测井新技术中，能评价井旁地层声学性质沿井周方向的变化，有助于复杂油气藏的识别和评价。

With the help of modern computational fluid dynamics tecnology, this thesis carries on a numerical simulation of annulus multiphase flow of the conventional auger drill stabilizer; it points out the deficiency of the annulus gas in cutting-carrying and lifting; and attempts to develop a drill stabilizer that are suitable for the gas drilling.

本文试图借助现代计算流体力学技术，对常规螺旋钻柱稳定器环空多相流动规律进行数值模拟研究，指出在环空气体携岩举升方面存在的不足，开发一套适合于气体钻井的新型钻柱稳定器，提出全井段环空流场改善方法，实现气体钻井防斜打快，减少冲蚀，提高井眼净化能力的目的。

Analyses the features and the problems of the explosion door of the air shaft and improves the structural steel ring and the balance weight of door.

分析了煤矿风井防爆门存在的漏风、密封液选择、使用比较困难和开闭不便等问题及其原因，并针对这些问题对防爆门的型钢圈和平衡重锤进行了改进设计，实践证明，改造后的新型防爆门性能明显优于改造前，提高了煤矿风井防爆门的安全可靠性，具有一定的推广价值。

The dynamics of the beam pumping well system can be described in a more realistic way by solving the combined models,and hence a method for studying motion and forces of the beam pumping system driven by different types of motor is provided.

将这些数学模型联立求解，可更真实地描述抽油机井系统的运动规律，从而提供了一种研究不同特性电机驱动下抽油机井的运动和受力的方法。

Taking the well Hong-9-1 in Dagang Oil Field for example,the important role of the rotation of drilling string in removing cuttings bed in extended reach well is expounded.

并以国内大港油田大位移井红9—1为例，说明了钻柱旋转在大位移井中对清除岩屑床的重要作用。

In chapter 3, the author considers that approximate value of Bessel fuctions and transcendental equations are main ob stacle to realize computer simulation for isolated well principle. The character of Bessel functions are studied, new approximate values of Bessel function are set forth.

第3章中，针对&割离井法&微机实现的难点——贝塞尔函数的渐近计算和超越方程的合理求解，研究了贝塞尔函数的性质，提出了新的贝塞尔函数的渐近式，并采用ZEROIN法完成了超越方程的求解，最后编制出新的&割离井法&计算程序。

He lowered a bucket into the well to get some water.

空井打水，徒劳无益1。空井打水，徒劳无益

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。