摘要
由于煤层气的储存机理不同于天然气的储存机理,将天然气的测井资料解释技术强加于煤层气的测井解释上是行不通的。为找到一种合乎煤层气自身规律的解释方法,中原油田结合以往常用的岩石物理模型原理,提出了双体积模型的方法,采用煤系地层和非煤系地层两个不同的模型来分别计算一口井中非煤系地层和煤系地层中各种岩性的特征值,并且主要针对于煤系地层找出了煤层各主要参数值的求取方法。经过实际应用,证实该方法对煤层的分析评价十分有效。
Because the coal-bed gas storage mechanism was different from that of natural gas, the interpretating technique of natural gas logging data used for coal-bed gas logging interpretation was not feasible.To find out an interpreting method suitable for coal-bed gas logging, in combination with the principle of rock physical model, a method of dual-bulk model was proposed.Two different models of coal measure strata and non-coal measure strata were used for calculating various lithological property valves for both of a well, the methods for deriving the main parameters of coal-bed logging are found out.Application shows that the methods are proven to be effective for coal-bed evaluation.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2008年第2期474-476,共3页
Journal of Oil and Gas Technology
关键词
煤层气
测井解释
含气量
岩石物理模型
coal-bed gas
logging interpretation
gas content
rock physical model
