The related theory has the meaning of directing the process of the down-hole method of shear wave testing.
有关理论对下孔法剪切波测试过程的简化具有一定的指导意义。
Electrical submersible pump lifted Wells is the main high rate artificial lift method in the high water cut period, but it is difficult to determine the down hole failure during productions.
油田进入高含水期所采用的电潜泵作为增大排液量的方法，在生产过程中容易出现许多不易判断的井下故障。
The machining project of control cavity was set down based on the orthogonal test method, and the influence of control hole A and B on the hydraulic response of injector was tested.
根据正交试验法，制定了喷油器控制腔偶件的加工方案，并就控制A、B量孔尺寸对液力响应的影响进行了试验研究。
Some superiorities of using down hole hammer counter circulation type continuous coring (sampling) method in gold ore exploration are expounded in this paper.
文中阐述了在金矿勘探中应用潜孔锤反循环连续取心（样）的优越性；
In the detection of deep high-pressure water hazard of coal mine, down-hole electromagnetic method plays a unique role.
在煤矿深部高压水害隐患探测中，井下电磁法发挥着独到的作用。
It is one of the important part of the down hole oil-gas separator study to studying the sport analysis of oil-gas two fluid by applying the experiment method.
运用试验的方法进行气液两相流的流体运动分析，是井下油气分离器研究的重要组成部分。
The first experimental of recovery heavy oil using down-hole catalytic method was described in this paper.
介绍了国内首次井下催化降粘开采稠油的现场试验。
The main contents of this thesis are the research of simultaneous casing & coring method by pneumatic Down-the-Hole (DTH) hammer drilling and the innovation of a novel vegetable-gum drilling fluid.
本文是以中国水电顾问集团成都勘测设计研究院负责“架空层钻进取心技术研究”项目为依托，研究的主要内容是空气潜孔锤跟管取心钻进技术和新型植物胶冲洗液的开发研究。
The invention provides a method for extracting coal bed gas by up-hole and down-hole combination, and relates to the technical field of extracting the coal bed gas (or named as gas).
井上下联合抽采煤层气的方法，涉及煤层气（或称瓦斯）的抽采技术领域。
The invention provides a method for extracting coal bed gas by up-hole and down-hole combination, and relates to the technical field of extracting the coal bed gas (or named as gas).
井上下联合抽采煤层气的方法，涉及煤层气（或称瓦斯）的抽采技术领域。
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