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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;
The evaluation of coalbed gas logging with nerve network is one of the optimum method at present. 借助于神经网络技术进行煤层气测井评价,是现阶段的优选方法之一。
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 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;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;
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;
It is the mud sample taken while the gas logging was abnormal. 这是在气测异常时取的泥浆样。
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;
As well as the application of conventional hydrocarbon exploration and development,the well logging should be an important measure to evaluate coalbed gas. 同常规油气勘探和开发应用一样,测井也应成为煤层气评价的有力工具。
A mathematical model between coalbed gas content and log responses to syncline in Huaibei Sunan region is setup ultilizing progressive regression analysis method. 利用逐步回归方法建立了淮北宿南向斜煤层气含量与测井响应值之间的数学模型；
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。
The parameters for gas logging and ROP are different greatly from the parameter in normal drilling due to the effect of the crushed rock volume,the drilling fluid and so on. 取心井段由于受破碎岩石体积、钻井液等因素的影响,气测值和钻时与正常钻进时的录井值有较大差别。
Comprehensive logging includes gas logging ,drilltime ,drilling fluid,parameters of drilling engineering etc.It is an important means to discover abnormity instance without delay. 综合录井包括气测、钻时、钻井液、钻井工程参数等多方面录井技术,是及时发现异常情况的重要手段。
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。
The geoelectric field in geophysical field is effective on seepage properties of coalbed gas. 总结了该矿区地电场特征,论证了激电测深法的有效性。
Natural coke has good conditions of physical character,and contain abundant coalbed gas,is an ideal reservoir of gas. 天然焦具有良好的物性条件,含有大量的瓦斯气体,是一个理想的储气层。