中国矿业
中國礦業
중국광업
China Mining Magazine
2015年
10期
102-107
,共6页
祁星%胡秋祥%易锡华%张水根
祁星%鬍鞦祥%易錫華%張水根
기성%호추상%역석화%장수근
修武盆地%页岩气%形成条件%储集空间%勘探前景
脩武盆地%頁巖氣%形成條件%儲集空間%勘探前景
수무분지%혈암기%형성조건%저집공간%감탐전경
Xiuwu basin%shale gas%formation conditions%reservoir space%exploration prospect
为了解江西修武盆地下寒武统王音铺组的页岩气勘探前景,采取了野外地质调查、岩芯观察、实验测试分析及数学模拟等方法,对王音铺组富有机质页岩的厚度与埋深、有机地球化学特征、储层特征、含气性等方面进行了初步的研究。研究表明：王音铺组富有机质页岩为浅海陆棚相沉积,有效厚度约53m,顶界埋深在200~4000m 之间；有机质丰度较高,一般为2%~14%,干酪根类型为Ⅰ型,有机质成熟度达到了过成熟阶段；页岩的矿物成分以石英和黏土为主,其中黏土矿物中又以伊利石为主；页岩中的微孔隙主要有粒间孔、粒内孔、有机质孔和微裂缝四种类型；数学模拟和等温吸附实验结果显示,王音铺组页岩气的含气量平均为2m3/t,页岩气资源丰度为2.54×108 m3/km2,具有较好的页岩气资源潜力。采用地质类比、综合地质分析,初步预测江西修武盆地下寒武统王音铺组具有较好的页岩气勘探前景。
為瞭解江西脩武盆地下寒武統王音鋪組的頁巖氣勘探前景,採取瞭野外地質調查、巖芯觀察、實驗測試分析及數學模擬等方法,對王音鋪組富有機質頁巖的厚度與埋深、有機地毬化學特徵、儲層特徵、含氣性等方麵進行瞭初步的研究。研究錶明：王音鋪組富有機質頁巖為淺海陸棚相沉積,有效厚度約53m,頂界埋深在200~4000m 之間；有機質豐度較高,一般為2%~14%,榦酪根類型為Ⅰ型,有機質成熟度達到瞭過成熟階段；頁巖的礦物成分以石英和黏土為主,其中黏土礦物中又以伊利石為主；頁巖中的微孔隙主要有粒間孔、粒內孔、有機質孔和微裂縫四種類型；數學模擬和等溫吸附實驗結果顯示,王音鋪組頁巖氣的含氣量平均為2m3/t,頁巖氣資源豐度為2.54×108 m3/km2,具有較好的頁巖氣資源潛力。採用地質類比、綜閤地質分析,初步預測江西脩武盆地下寒武統王音鋪組具有較好的頁巖氣勘探前景。
위료해강서수무분지하한무통왕음포조적혈암기감탐전경,채취료야외지질조사、암심관찰、실험측시분석급수학모의등방법,대왕음포조부유궤질혈암적후도여매심、유궤지구화학특정、저층특정、함기성등방면진행료초보적연구。연구표명：왕음포조부유궤질혈암위천해륙붕상침적,유효후도약53m,정계매심재200~4000m 지간；유궤질봉도교고,일반위2%~14%,간락근류형위Ⅰ형,유궤질성숙도체도료과성숙계단；혈암적광물성분이석영화점토위주,기중점토광물중우이이리석위주；혈암중적미공극주요유립간공、립내공、유궤질공화미렬봉사충류형；수학모의화등온흡부실험결과현시,왕음포조혈암기적함기량평균위2m3/t,혈암기자원봉도위2.54×108 m3/km2,구유교호적혈암기자원잠력。채용지질류비、종합지질분석,초보예측강서수무분지하한무통왕음포조구유교호적혈암기감탐전경。
To understand shale gas exploration prospect of Lower Cambrian Wangyinpu Formation in Xiuwu basin,took the methods of field geological survey,core observation,experimental test analysis and mathematical modeling,preliminary studied the thickness,buried depth,organic geochemical characteristics, reservoir characteristics and gas-bearing features of the rich-organic matter shale in Wangyinpu Formation of Xiuwu basin.Research shows that the rich-organic matter shale in Wangyinpu Formation is shallow shelf facies.The effective thickness is 53m.The top buried depth is 200~4000m.The shale has higher abundance of organic matter with generally of 2%~14%.The kerogen types isⅠ.The maturity of organic matter had reached a mature stage.The mineral composition of shale is given priority to with quartz and clay,which illite is dominated in clay mineral.The micro pores in the shale are mainly inter-particle pores,intra-particle pores,organic pores and microfractures.Mathematical simulation and isothermal adsorption experiment shows that the average shale gas content and Shale gas resource abundance of Wangyinpu Formation respectively is 2m3/t and 2.54 × 10 8 m3/km2 .According to the geological analogy and comprehensive geological analysis,preliminary prediction that the Lower Cambrian Wangyinpu Formation in Xiuwu basin has a good exploration prospect of shale gas.
