Fundamental Studies on Natural Gas Hydrate Reservoir Development Program by Depressurizing 天然气水合物藏降压开发方案基础研究
2D experimental studies on hydrate synthesis electric capacity characteristic and production by depressurizing system 水合物合成电容特性与降压开采二维实验研究
The main depressurizing measures will be focus on the simple change of water flood pump. 将施工简便的注水泵减级作为主要的降压措施;
The physical simulation experiments of natural gas hydrate ( NGH) production by depressurizing in sand-packed porous media were carried out using a new type of apparatus self-designed. 使用自制的一维天然气水合物开采模拟实验装置,对天然气水合物降压开采进行了物理模拟实验研究,考察了降压幅度、降压速度对开采效果的影响。
Through computer numerical simulation calculation and in situ observation, the basic mechanism of in coal depressurizing roadway layout and loosening blasting technique applied to depressurize the surrounding rock of a roadway along gob area in sub level caving mining is analyzed. 采用计算机数值模拟计算及现场观测方法,结合松动爆破技术分析了本煤层布置卸压巷对综放沿空巷道围岩卸压的机理。
The research indicates that the depressurized towing tank, signal transmitting system and the depressurizing facilities are capable of accomplishing open water tests studying hydrodynamics performance of conventional propeller and semi-submerged propeller with or without cavitation. 试验研究证明,减压拖曳水池及其测力系统,信号传输系统和减压设备是能够完成普通桨和半浸桨空化与非空化水动力性能的敞水试验。
Study on depressurizing control of the surrounding rock of a roadway along gob area in sub-level caving mining 综放沿空巷道围岩卸压控制研究
Research on Depressurizing and Saving Energy of Alternating Current Motor and Its Realization 交流电动机降压节能研究与实现
It is reported that two cases of advanced marginal corneal degeneration were treated with autologous scleral transplantation combined with poaterior chamber depressurizing surgery. 本文报告了采用自体巩膜移植联合后房减压术治疗2例晚期角膜边缘性变性的过程。
The depressurizing modeling can also reduce their effect with the same Reynolds number, however, their reductions of the nature flow and the density difference flow are different. 而降压法在保持Reynolds数不变的前提下同样可明显抑制自然对流的影响和密度差对流动与传热传质的影响,但对自然对流和传质过程的密度流的抑制效果有所不同。
This article mainly studied the control technique of drainage and depressurizing to maintain the underground water level and the harbor water level falling synchronously in order to ensure the bank slope's stability during the variation of the harbor water level. 本文重点研究岸坡地下水位与港口水位同步降落的排水降压控制技术,以期在港口水位升降过程中,保障港口岸坡的稳定性。
A high-sensitive scintillation chamber and method for collection of radon by heating and depressurizing 高灵敏闪烁室和氡气收集方法
Research on hydrogeology conditions& feasibility of depressurizing from Daqing limestone in Xingtai coal mine 邢台矿大青灰岩水文地质条件及疏水降压可行性研究
The practical results have shown that depressurizing control is a reasonable and effective method of controlling the serious deformation of the roadway along gob area, and then technical and economic profit is remarkably made. 现场应用实践表明,卸压控制是治理综放沿空巷道围岩强烈变形破坏的科学有效方法,并取得了显著的技术经济效益。
In the paper, CFD ( computational fluid dynamics) software is used to analyze the flow field, choose the eccenter injection proration device with annular depressurizing channel as choking element, optimize the design of throttle components. 本文利用CFD(计算流体动力学)软件进行流场分析,选择具有环形降压槽结构的偏心配注器,优化设计节流元件。