中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2014年
6期
18-21
,共4页
煤层气%地质特征%赋存条件%储量估算%开发条件%有利区%寿阳马首区段
煤層氣%地質特徵%賦存條件%儲量估算%開髮條件%有利區%壽暘馬首區段
매층기%지질특정%부존조건%저량고산%개발조건%유리구%수양마수구단
CBM%geological features%hosting condition%reserve estimation%exploitation condition%favorable area%Mashou sector,Shouyang block
通过对寿阳区块马首区段地质条件、煤层赋存特征、煤层气含气性、渗透性、解吸/吸附特征等研究，认为该区段构造简单，岩层覆盖条件较好；水文地质条件简单，地下水缓流或滞流有利于煤层气富集；主采煤层发育基本稳定，埋藏深度适中；煤层气含量较高，主要在6～16m3/t；煤层割理裂隙发育，整体渗透率较高，非均质性较明显；煤储层处于欠压状态、实测含气饱和度较低、原地应力较低，整体上适合进行煤层气开采。在此基础上估算了煤层气资源储量，并优选区段的中、北部为煤层气开发的有利区。
通過對壽暘區塊馬首區段地質條件、煤層賦存特徵、煤層氣含氣性、滲透性、解吸/吸附特徵等研究，認為該區段構造簡單，巖層覆蓋條件較好；水文地質條件簡單，地下水緩流或滯流有利于煤層氣富集；主採煤層髮育基本穩定，埋藏深度適中；煤層氣含量較高，主要在6～16m3/t；煤層割理裂隙髮育，整體滲透率較高，非均質性較明顯；煤儲層處于欠壓狀態、實測含氣飽和度較低、原地應力較低，整體上適閤進行煤層氣開採。在此基礎上估算瞭煤層氣資源儲量，併優選區段的中、北部為煤層氣開髮的有利區。
통과대수양구괴마수구단지질조건、매층부존특정、매층기함기성、삼투성、해흡/흡부특정등연구，인위해구단구조간단，암층복개조건교호；수문지질조건간단，지하수완류혹체류유리우매층기부집；주채매층발육기본은정，매장심도괄중；매층기함량교고，주요재6～16m3/t；매층할리렬극발육，정체삼투솔교고，비균질성교명현；매저층처우흠압상태、실측함기포화도교저、원지응력교저，정체상괄합진행매층기개채。재차기출상고산료매층기자원저량，병우선구단적중、북부위매층기개발적유리구。
Through studies on geological condition, coal seam hosting features, CBM gas-bearing property, permeability, desorption/ad-sorption characteristics in the Mashou sector, Shouyang block have considered that structures in the sector are simple, covering condi-tion of rock layers better, hydrogeological condition simple, subcritical flow or viscous flow of groundwater is beneficial to CBM enrich-ment;main minable coal seam development basically stable, buried depth moderate, CBM content rather high, mostly 6~16m3/t;devel-oped coal seam cleats and fractures, overall permeability rather high, anisotropy rather obvious;coal reservoir is in underbalanced pres-sure situation, rather low measured gas saturation and in situ stress, on the whole is propitious to CBM exploitation. On this basis, CBM resources and reserves have been estimated and selected middle and north parts as favorable areas to exploit CBM.
