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- Keywords coalbed gas pressure;gas flow equation;insitu stress;geothermal temperature; 煤层瓦斯压力;瓦斯渗流方程;地应力;地温;
- Keywords coalbed gas logging;filling pressure drop;MRO; 煤层气试井;注入压降;存储式电子压力计;
- Keywords coalbed gas;secondary biogenic origin;acyclic isoprenoid alkanes;methanogenic bacteria;Qinshui basin; 无环类异戊二烯烷烃;甲烷菌;煤岩;煤层气;次生生物成因;沁水盆地;
- Keywords coalbed gas;geological structure characteristics;gas preservation law;gassy outburst mine; 煤层瓦斯;地质构造特征;瓦斯赋存规律;高突矿井;
- Keywords coalbed gas;thermogenic gas;secondary biogenic gas;gas source rocks;biomarkers; 煤层气;热成因;次生生物成因;气源岩;生物标志化合物;
- Keywords coalbed gas;pinnate horizontal multilateral well;well profile;optimization; 煤成气;开采;水平井;定向羽状水平井;井身结构;优化;
- Keywords Coalbed gas;Fracturing;Fracture;Testing;Wellbore temperature;Geodetic potential; 煤成气;压裂;裂缝;测试;井温;大地电位;
- Keywords Coalbed Gas;Guar Gum/Borate Aqueous Gel;Hydrofracturing Fluid;Quartz Sands Proppant;Coalbed Fracturing; 煤层气;瓜尔胶硼冻胶;压裂液;支撑剂（石英砂）;煤层压裂;
- The Influence of In-situ Stress Gradient and Geothermal Temperature on The Calculation of Coalbed Gas Pressure 煤层温度和应力梯度变化对煤层瓦斯压力计算的影响
- Keywords coalbed gas;the pore-fissure double-medium model;finite difference method;storage and transportion law;recoverability evaluating;fuzzy mathematic assessment;throughput capacity sensibility; 煤层气;孔隙-裂隙双重介质模型;有限差分方法;储运规律;可采性评价;模糊数学评价;产能敏感性;
- They measure gas pressure five times per hour. 他们每小时测量五次气压。
- Keywords coalbed gases;thermogenic gases;secondary biogenic gases;mixing proportion;resources significance; 煤层气;热成因气;次生生物成因气;混合比例;资源意义;
- Gas pressure due to the materials inside the star. 第一种向外压力是恒星物质所造成的。
- Gas pressure gauge and fill valve. 气体压力表及充气阀。
- Abstract Under the action of coalbed water pressure,a certain quantity of gas is trapped in coal reservoir,forming coalbed gas reservoir. 在煤层水压力作用下，煤岩储层中“圈闭”了一定数量的气体从而形成煤层气藏。
- The gas pressure is adjusted so as to balance the beam. 通过调整气体的压力可以使天平横梁平衡。
- Then the gas pressure builds up until the volcano erupts. 这样，气体压力就会越来越大，以致引起火山爆发。
- Diffusion is a process surely occurring during the preduction of coalbed gas. 扩散作用主要影响煤层气井的早期产量。
- WOG=water,oil,gas pressure, WSP=working stream pressure. 600WOG表示英制球阀，150WSP表示压力，具体参数不明！
- Prospective study on coalbed gas resources in Carboniferous-Permian, West Henan. 豫西石炭-二叠系煤层气资源前景研究。
