在油井流入动态研究和井筒流体PVT分析的基础上，结合海上油田的实际情况，以系统效率为目标对潜油电泵井进行了优化设计。
Based on study of the inflow performance and analysis of the wellbore fluid PVT, combined the actual conditions in offshore oilfield, the optimal design were proceeded by aiming at system efficiency.
为研究其竖向承载特性，在国内首次采用自平衡法对黄土地区某桥梁的井筒式地下连续墙基础进行了现场静载试验。
To study vertical bearing behavior of the foundation, a shaft diaphragm wall foundation of bridge in loess area was tested for bearing capacity by use of the self-balanced method.
在立井井筒建设中，我们在原设计的基础上，对箱形永久钢井架凿井的实际方法作了改进。
This text introduced the practice method of the box permanent steel petroleum derrick shaft sinking in the construction of vertical shaft pit shaft.
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