CAJ | 학술논문

页岩含气量主要包括游离气含量和吸附气含量，其中游离气含量的影响因素有孔隙度、含气饱和度、密度、压力、温度等，而影响吸附气含量的因素有有机碳含量、有机质成熟度、压力、温度等。不同有机质类型的页岩吸附能力（吸附量／有机碳含量）差别较大，且Ⅲ型＞Ⅱ型＞Ⅰ型，并分别建立了游离气含量和吸附气含量的计算公式。为了快速、准确地获取页岩含气量，分析并筛选了页岩含气量主控关键参数，基于含气量理论计算公式等相关理论计算得出不同有机质类型的页岩含气量图版。总体上，页岩含气量随深度增加而变大，但变大趋势逐渐降低。页岩含气量图版理论值与页岩现场测试含气量相关性拟合表明图版具有广泛的实用性。在页岩气勘探初期地质参数较少的情况下，页岩含气量图版的建立从理论上预测含气量，为合理评价页岩气资源潜力和预测有利区提供了依据。
혈암함기량주요포괄유리기함량화흡부기함량，기중유리기함량적영향인소유공극도、함기포화도、밀도、압력、온도등，이영향흡부기함량적인소유유궤탄함량、유궤질성숙도、압력、온도등。불동유궤질류형적혈암흡부능력（흡부량／유궤탄함량）차별교대，차Ⅲ형＞Ⅱ형＞Ⅰ형，병분별건립료유리기함량화흡부기함량적계산공식。위료쾌속、준학지획취혈암함기량，분석병사선료혈암함기량주공관건삼수，기우함기량이론계산공식등상관이론계산득출불동유궤질류형적혈암함기량도판。총체상，혈암함기량수심도증가이변대，단변대추세축점강저。혈암함기량도판이론치여혈암현장측시함기량상관성의합표명도판구유엄범적실용성。재혈암기감탐초기지질삼수교소적정황하，혈암함기량도판적건립종이론상예측함기량，위합리평개혈암기자원잠력화예측유리구제공료의거。
Shale gas content is composed of free gas contentand adsorbed gas content .The free gas content may be inf-luenced by porosity ,gas saturation ,density ,pressure and temperature ,whilethe adsorbed gas content is affected by organic carbon content ,organic matter maturity , pressure and temperature .The adsorption capacities of organic matters of diffe-rent types(adsorption/TOC)of shale are quite different,and show the sequence of Ⅲ>Ⅱ>Ⅰ.Thus,different formulas were proposed for the calculation of free gas content and adsorbed gas content .Through analyzing and selecting the key factors for shale gas content ,and based on relational theoretical calculations ,charts of shale gas content were developed for different organic matter types ,so as to quickly and accurately calculate shale gas content .Overall,shale gas content increases with depth ,but the increment decreases progressively .The theoretical values calculated with the charts correlate well with the field measured values , indicating the wide applicability of these charts .The theoretical shale gas content obtained with these charts can provide a reliable basis for the reasonable evaluation of shale gas resource potential and prediction of play fairways in the early stage of shale gas exploration when the available geologic parameters are rare .