摘要
综合应用岩心、录井、测井、地震等资料,在地震剖面追踪和连井剖面对比的基础上,通过井震结合分析将海拉尔盆地呼南地区的南屯组一、二段细分为5个旋回,并对每个旋回的沉积特征和沉积相进行了对比分析。认为呼南地区南屯组一段地层以冲积平原、扇三角洲和滨浅湖相为主,南二段以扇三角洲、辫状河三角洲、滨浅湖相及沼泽相为主;南二段发育多个煤层,和暗色泥岩交互分布,构成煤系烃源岩;南二段上部2个旋回的三角洲前缘储层物性相对较好。
Comprehensively integrating the core samples, mud and well loggings and seismic data and so on, on the basis of the seismic cross-sections tracing and well-connected section contrast, No. 1 and No. 2 Members （ i. e. Kl n1 and K1 n2 } are further classified into five cycles for Nantun Formation in Hunan area of Hailar Basin with the help of well-seismic connected analysis. At the same time, the sedimentary characteristics and facieses are contrasted and analyzed for each cycle. The study shows that Member K1 nj takes alluvial plain, fan delta and shoreshallow lacustrine facies as the primary forms while Member K1 n2 indicates fan delta, braided river delta, shore shallow-lacustrine facies and swamp facies as main types; many coal beds are well developed in the latter and alter-nately distributed with dark mudstone, finally coal-measure hydrocarbon source rock is generated; the physical properties are much better for the reservoirs in the delta front of two cycles on the top of Member K1 n2.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2013年第3期52-56,共5页
Petroleum Geology & Oilfield Development in Daqing
基金
国家大型油气田及煤层气开发科技重大专项课题(2011ZX05007-002)
关键词
海拉尔盆地
呼南地区
南屯组
沉积特征
煤层
Hailar Basin
Hunan area
Nantun Formation
sedimentary characteristic
coal bed
