残余气

煤中残余气含量及其影响因素

Residual Gas In Coals And Control Factors

残余气在煤层气中占的比例变化很大，为1.5%～30.0%；

The ratios of residual gas content to coalbed gas content are greatly variable from 1 5 % to 30 0 % .

相渗曲线越陡，残余气饱和度越小对气产出越有利；等温吸附线在地层压力变化范围内的缓陡程度决定气产量的高低。

The curve steep degree of isothermal absorption within formation pressure change extent determines the gas production . The Qi ( vital energy )

北部地区由于供气不足，形成弱动力成藏型残余气水区。

As a result of inadequate gas supply , The north of the study area formate weak driving force for the residual gas-water distribution area .

此外，本文还给出了室内实验得到的气顶砂岩束缚水饱和度、原始含气饱和度、残余气饱和度数据表，以及原始含气饱和度与残余气饱和度的关系曲线。

In addition , a table including the data of irreducible water saturation , initial gas saturation , residual gas saturation obtained from lab experiments were also given , as well as the plot of initial gas saturation vs residual gas saturation .

根据全组分模拟器模拟结果可知：水气比、不同的注入段塞、渗透率和残余气饱和度对凝析油采收率的影响非常明显；

In the light of the simulation results by use of full composition simulator , it is known that the water / gas ratio , different injection slug , permeability ratio and residual gas saturation have an obvious effect on the condensate recovery ;

窑多线高效率、低能耗大型烧天然气马蹄焰池窑设计喜山构造运动使研究区天然气重新大规模运移聚集，形成充满度很高的残余气藏。

Design of High Efficiency Low Energy Consumption Natural Gas Fired End Port Furnace for Multi-line Production A large scale migration and accumulation took place during Later Himalayan movement , as a result a type of called remained gas pools with higher gas columns were formed .

早期现场试验是利用微生物开采残余油气。

Early field trials were initiated to utilize microorganisms to recover residual oil or gas .

这将有助于用阿尔奇公式准确地评价低孔隙度低渗透率地层的含油气饱和度和冲洗带残余油气饱和度。

These results are conducive to evaluation of the oil saturation in low porous and permeable formation and residual oil saturation in the flushed zones with Archie equation .

多年来，石油行业一直将液化二氧化碳注入油井，以从成熟油田开采残余油气。

The oil industry has been pumping liquefied carbon dioxide into wells for years in order to get the last traces of oil and gas out of mature fields .

油层减阻侵入是有条件的，当泥浆滤液与地层水矿化度差异较大、束缚水饱和度、残余油气饱和度较高时，油层可表现为增阻侵入。

For reservoirs with high bound water saturation and high residual oil saturation , the increased resistance invasion can appear in oil layer if the salinity difference between formation water and mud filtration is large enough .

研究孔隙表面结构的分形特征，对油气储集层的评价、研究残余油气饱和度和提高油气采收率有重大的指导意义。

Analyzing and studying the fractal characteristic of pore space structure greatly contributes to the evaluation of reservoir , the studying of residual oil ( or gas ) saturation and the raising of oil ( or gas ) recovery percent .

残余盆地油气地质条件复杂，一般分两个步骤对其进行油气地质评价：一是运用反演技术恢复原型盆地构造格局、沉积特征以及原生油气地质特征；

Usually one should adopt two steps to assess the petroleum geological conditions in relict basins : ( 1 ) use inversion technology to reconstruct the structural framework of the prototype basin , the deposition feature and the primary oil and gas geological feature of the prototype basin ;

前者多为继承性盆地，含油层系多、远景好，后者多为残余盆地，含油气情况复杂。

The former are mostly an inherited basin , with various oil-bearing sequences and better oil potential ; and the latter are mostly a residual basin , with complex hydrocarbon condition .