中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2013年
10期
22-25
,共4页
页岩气%勘探前景%龙潭组-大隆组%有利区%江苏下扬子区
頁巖氣%勘探前景%龍潭組-大隆組%有利區%江囌下颺子區
혈암기%감탐전경%룡담조-대륭조%유리구%강소하양자구
shale gas%exploration prospect%Longtan Formation-Dalong Formation%favorable area%lower Yangtze area,Jiangsu
江苏下扬子区龙潭组-大隆组暗色泥页岩厚度较大（60~100m），有机碳含量较高（平均为2.0%~3.0%），热演化程度区域上差异较大（0.5%~3.0%），总体具有形成页岩气藏的良好潜力。暗色泥页岩中脆性矿物含量较高，利于后期的压裂和开发。根据研究区暗色泥页岩页岩厚度、埋深、有机碳含量和成熟度展布，以矿物成分和含气性特征等特征，运用信息叠合法，最终优选出溧水-句容、丹阳-海安为Ⅰ类有利区，无锡-张家港为Ⅱ类有利区。
江囌下颺子區龍潭組-大隆組暗色泥頁巖厚度較大（60~100m），有機碳含量較高（平均為2.0%~3.0%），熱縯化程度區域上差異較大（0.5%~3.0%），總體具有形成頁巖氣藏的良好潛力。暗色泥頁巖中脆性礦物含量較高，利于後期的壓裂和開髮。根據研究區暗色泥頁巖頁巖厚度、埋深、有機碳含量和成熟度展佈，以礦物成分和含氣性特徵等特徵，運用信息疊閤法，最終優選齣溧水-句容、丹暘-海安為Ⅰ類有利區，無錫-張傢港為Ⅱ類有利區。
강소하양자구룡담조-대륭조암색니혈암후도교대（60~100m），유궤탄함량교고（평균위2.0%~3.0%），열연화정도구역상차이교대（0.5%~3.0%），총체구유형성혈암기장적량호잠력。암색니혈암중취성광물함량교고，리우후기적압렬화개발。근거연구구암색니혈암혈암후도、매심、유궤탄함량화성숙도전포，이광물성분화함기성특정등특정，운용신식첩합법，최종우선출률수-구용、단양-해안위Ⅰ류유리구，무석-장가항위Ⅱ류유리구。
The Longtan Formation-Dalong Formation dark shale in the lower Yangtze area, Jiangsu has rather large thickness (60~100m), organic carbon content (average 2.0%~3.0%) and regional discrepancy on thermal evolution degree (0.5%~3.0%), thus endow with fine potential to form shale gas reservoir. Brittle mineral content in dark shale is rather high and advantageous to later stage fractur-ing and exploitation. Based on dark shale thickness, buried depth, organic carbon content and maturity distribution characteristics as well as gas-bearing properties, applying information stacking method, finally optimized out the Lishui-Jurong and Danyang-Haian zones as favorable area category I and Wuxi-Zhangjiagang zone as favorable area category II.
