海相油气地质
海相油氣地質
해상유기지질
Marine Origin Petroleum Geology
2015年
4期
38-42
,共5页
早寒武世%牛蹄塘组%海相地层%页岩气%保存条件%勘探前景%贵州
早寒武世%牛蹄塘組%海相地層%頁巖氣%保存條件%勘探前景%貴州
조한무세%우제당조%해상지층%혈암기%보존조건%감탐전경%귀주
Early Cambrian%Shale gas%Preservation condition%Exploration prospect%Guizhou
贵州绥阳地区广泛发育下寒武统牛蹄塘组海相黑色碳质页岩.页岩的厚度在30~50 m,埋藏深度小于3 000 m,具有较好的区域性封盖层,保存条件良好,是区内主要的页岩气目的层.页岩的有机质丰度TOC为1.5%~3.0%,成熟度Ro为1.0%~3.5%.推测总含气量为0.3~1.2 m3/t,地质资源量为639.5×108 m3,资源潜力较大.页岩气可在区内隆起的低部位等处富集成藏.综合页岩气的区域地质特征和保存条件,提出了绥阳地区东北部是今后页岩气的重点勘探区域.
貴州綏暘地區廣汎髮育下寒武統牛蹄塘組海相黑色碳質頁巖.頁巖的厚度在30~50 m,埋藏深度小于3 000 m,具有較好的區域性封蓋層,保存條件良好,是區內主要的頁巖氣目的層.頁巖的有機質豐度TOC為1.5%~3.0%,成熟度Ro為1.0%~3.5%.推測總含氣量為0.3~1.2 m3/t,地質資源量為639.5×108 m3,資源潛力較大.頁巖氣可在區內隆起的低部位等處富集成藏.綜閤頁巖氣的區域地質特徵和保存條件,提齣瞭綏暘地區東北部是今後頁巖氣的重點勘探區域.
귀주수양지구엄범발육하한무통우제당조해상흑색탄질혈암.혈암적후도재30~50 m,매장심도소우3 000 m,구유교호적구역성봉개층,보존조건량호,시구내주요적혈암기목적층.혈암적유궤질봉도TOC위1.5%~3.0%,성숙도Ro위1.0%~3.5%.추측총함기량위0.3~1.2 m3/t,지질자원량위639.5×108 m3,자원잠력교대.혈암기가재구내륭기적저부위등처부집성장.종합혈암기적구역지질특정화보존조건,제출료수양지구동북부시금후혈암기적중점감탐구역.
Based on observation and analysis of samples from outcrops and wells,a set of 30~50m thick Lower Cambrian Niutitang carbonaceous black shale is deep buried in Suiyang area,in the north of Guizhou.Thick regional overlying cap make the shale good condition of gas preservation so it is a good target of shale gas prospect in Guizhou.The analysis result shows that TOC is in the range of 1.5%~3% and Ro changes in 1.0%~3.5% in the gas-bearing black shale.The total desorbed gas content of 0.3~1.2m3/t and the potential gas reserves of 639.5 × 108m3 mean great resources potential in this area.It is indicated that shale gas can accumulate in the low positions of arches in this area.It is suggested that the best favorable prospecting area of shale gas is in the northeast of Suiyang area in the future.
