摘要
通过层序地层和沉积相研究以及成藏条件分析认为,万安盆地主要发育渐新统、下中新统和中中新统3套烃源岩;主要发育了渐新统-中新统砂岩、中-上中新统碳酸盐岩台地灰岩或礁灰岩两类储集层,储层物性好,储盖组合发育;发育了背斜圈闭、断块圈闭、潜山圈闭和非构造圈闭等四种圈闭类型,成藏条件好。在上述研究的基础上,评价认为中新统砂岩、上-中中新统碳酸盐岩两大成藏组合为万安盆地有利成藏组合。
According to the research on sequence stratigraphy and sedimentary facies and analysis on hydrocarbon accumulationconditions,there exist three types of resource rock that include Oligocene、Lower Miocene and Middle Miocene;two types of reservoirsare formed to Oligocene-Miocene sandstone,middle-upper Miocene carbonate platform limestone or reef limestone with fine physicalproperties and reservoir-caprock assemblage;four major traps with perfect hydrocarbon accumulation conditions are formed as well coveringanticline,fault block,buried hill and nonstructural. Based on these conclusions. The reseaches show that Miocene sandstone and uppermiddleMiocene carbonate rock are favorable plays in Wan’an basin.
出处
《石化技术》
CAS
2015年第5期230-231,共2页
Petrochemical Industry Technology
关键词
万安盆地
成藏条件
成藏组合
Wan’an basin
hydrocarbon accumulation condition
play
