Due to the smaller angle of injection, the ratio of total pressure loss of aerodynamic ramp is less than the physical ramp and transverse injection stream. 由于喷流方向与主流方向夹角较小,总压损失也较物理斜坡、横向喷流等混合增强方式小。
Confirming injection and production ratio of edge water reservoir depends on accurate water influx. 边底水油藏注采比的确定,需要有准确的水侵量为依托。
Tile important cause that led to the stagnation of the increment of coal injection ratio in out country is that the special equipment for producing oxygen lacks. 我国炼铁喷煤比徘徊不前的重要原因是缺乏专用制氧设备。
The introduce of band gap discontinuity in heterostructure can obtain high injection ratio, decrease further threshold current and increase the output power. 异质结构引进的带隙差可以实现高注入比、进一步降低了阈值电流,同时提高了输出功率。
Theoretical model of injection-production ratio is set up. Researches show that injection to production ratio is not only related to reservoir physical properties but also limited by rational water injection pressure and flowing pressure. 建立了注采比理论模型,研究认为注采比除与储层物性有关外,还受合理注水压力、流动压力所制约。
The turbulent flow field in the horizontal well completed with perforation was simulated by solving the N-S equations. The effects of injection ratio on pressure drop and the mechanism of mixing pressure drop were studied by the analysis of axial pressure drop and three dimensional stream lines. 采用定常湍流N-S方程,数值模拟了水平井筒湍流变质量流场,通过分析轴线压降和孔眼附近三维流线图,研究注入比对水平井筒压降的影响规律及混合压降产生的机理。
Meanwhile, some of the most sensitive factors affecting nitrogen injection are miscible injection ratio, formation permeability, relative permeability and its oil viscosity. 影响注氮气最敏感的因素是混注比、地层渗透率、渗透率比值及其原油粘度。
To analyze the influence of coke thermal property for the utilization coefficient, fuel ratio, smooth running index and coal injection ratio of BF by researching the coke thermal property and building the statistical model. 通过对焦炭热性能的研究,并建立统计模型分析焦炭热性能对高炉的利用系数、燃料比、顺行指数、喷煤比的影响。
Effects of injection ratio on pressure drop in horizontal wells 注入比对水平井筒压降影响规律的研究
In the ideal condition, injection to production ratio turns out to become 1 as the time of waterflood lasts. 在理想情况下注采比的变化趋势是随注水时间的延续趋近1。
A study of critical injection production ratio in a steam flooding process 蒸汽驱过程中临界采注比的研究
According to the theory of seepage flow, this paper analyzes the relations between formation pressure and injection production ratio, flowing pressure, production and the factors that affect formation pressure. 根据渗流力学原理,分析了地层压力与注采比、地层压力与流压、地层压力与产液量之间的相互关系及其影响因素。
High injection production ratio is the important reason which reflect the droping of the oil production. 注采比高是导致研究区原油产量下降的重要原因。
After killing bacteria and increasing water injection, the ratio of bacteria killed is up to 100%, H_2S and various kinds of oil at the well bottom were eliminated completely. 杀菌增注试验处理后,井底水杀菌率达100%;H2S和油类全部去除。
To guarantee the project of steam drive works properly, it must be made sure that steam injection rate, production injection ratio and steam quality are above their critical value, otherwise the development result will drop rapidly. 要确保项目在真正的蒸汽驱条件下运作,就必须使注汽速度、采注比和蒸汽干度在其临界值以上,否则开发效果急剧下降。
This thesis gives a fundamental quantitative analysis of the cycle of recuperative gas turbine cogeneration with water injection and mainly discusses the influence of water injection ratio and pressure ratio on the specific power and the amount of heating. 本论文对功热并供回热注水燃气轮机热力循环进行了基本定量分析。主要分析了注水率和压比对比功和供热量的影响。
Different flooding pattern and different injection production ratio are used for different reservoirs to maintain the reservoir at a reasonable level. 根据不同的油藏类型采用不同的注水方式以及不同的注采比,确保油层在某一压力下生产。
Third, research on the relation between pressure buildup velocity and injection/ production ratio and water cut. 三是研究了压力恢复速度与注采比、含水的关系。
The results show that there exist a critical production and injection ratio ( CPIR) under an optimized steam injection rate for a given heavy oil reservoir. 研究结果表明,对于一个特定的油藏,在优选的注汽速度下,存在着一个临界采注比。
In the light of continuous rising of watercut and decrease of formation pressure in mature heterogeneous sandstone oilfield, injection production ratio must be adjusted above the reasonable lower limit of formation pressure so that better economic benefit can be obtained. 针对非均质砂岩油田开发后期由于含水率不断上升、地层压力水平下降而进行的注采结构调整,必须要在合理的地层压力下限值以上进行,才能获得好的经济效益。
Through numerical modelling, this paper studies the process parameters of steam drive such as steam injection rate, production injection ratio, and steam quality. 利用数值模拟方法对蒸汽驱中注汽速度、采注比和蒸汽干度等工艺参数进行了研究。
On the basis of a partial regenerative steam injected gas turbine ( PRSTIG) cycle analyzed is the impact of such parameters as turbine entry temperature, pressure ratio, injection ratio and regeneration ratio, etc on cycle efficiency and specific work. 以部分空气回热回注循环(PRSTIG)为基础,分析了燃气初温、压比、回注比、回热比等参数对循环效率、比功的影响。
ISF can also largely improve production injection ratio of steam flood and achieve the depressurization production mechanism of steam flood so that steam specific volume, steam swept volume, steam quality and heat utilization efficiency are all increased. 同时,间歇蒸汽驱可大幅度提高蒸汽驱采注比,实现蒸汽驱过程中降压开采机理:蒸汽比容增大,增加了蒸汽波及体积,使蒸汽干度、热利用率得以提高。
Study on transient flow regularity in low permeability reservoirs with consideration of injection-production ratio 低渗透油藏考虑注采比时不稳定渗流规律研究
The Determination of Injection-Production Ratio in High Water cut Stage 高含水期单元合理注采比确定
With the strategy of pressure compensation, the injection site residue ratio of liposomes decreased from 20% to 10%. 压力补偿后,脂质体在给药部位残留量由20%左右下降到10%以下。