A predictive model of gas content in coal reservoirs based on multiple stepwise regression analysis: a case study from Qinshui Basin;
基于多元逐步回归分析的煤储层含气量预测模型——以沁水盆地为例
Quantitative analysis of geological factors affecting coal-seam gas content;
影响煤层含气量地质因素的定量分析
Coalbed gas content is an important information which is essential for exploration and development,selected area evaluation and reservoir study of coalbed methane,and to obtain the accurate lost gas is the key to determine the reliability of coalbed gas content.
煤层含气量是煤层气勘探开发、选区评价和储层研究必不可少的重要资料,而准确求取损失气量又是决定煤层含气量可靠性的关键。
Comprehensive evaluation of gas-bearing traps in volcanic rocks of Xujiaweizi depression;
徐家围子断陷火山岩圈闭含气性的综合评价
It is difficult to evaluate its gas-bearing correctly with conventional logging methods.
川西地区须家河组为特低孔渗的裂缝性致密碎屑岩储层,储层岩性多变,裂缝和溶蚀孔发育不均,储层各向异性极强,常规测井方法难以准确评价其含气性。
Analyses data as average methane content, saturation, critical desorption pressure and theoretical recovery in the main coal reservoirs as well as desorption rate and desorptionable volume of coal bed methane(CBM).
分析了潞安 -晋城 (新区 )矿区主煤储层的平均含气量、饱和度、临界解吸压力、理论采收率以及煤层甲烷解吸率、可解吸量等数据 ,得出本区主煤储层平均解吸率约为 37% ,高于全国其它地
The void fraction increases with prolonging of agitation time.
结果表明,表面活性剂SDS的浓度在临界胶束浓度、搅拌速度6400r/min、搅拌时间3min时制备的CGA最稳定,CGA的含气率会随着搅拌时间的延长而有所增加。
In this paper,the prediction of void fraction and pressure drop for upward gas-liquid annular flow in a vertical annulus is studied.
对垂直同心环形管内上升气液环状流的截面含气率及压降预测进行了研究 。
A sensor with semi-circle capacitor is adopted to on-line automatically and averagely measure the void fraction of crude oil.
根据原油含气时其介电常数变小的原理,分析了油气混合介质的相对介电常数与含气率的关系。
Discussion on air content in production of anti-freeze concrete;
抗冻混凝土生产中有关含气量的若干探讨
Influence of mixing speed on fresh concrete air content;
搅拌速度对新拌混凝土含气量的影响分析
Control measures for railroad concrete air content in upland seasonal frosty area;
高原季节性冻土地区铁路混凝土含气量施工控制措施