摘要
为了研究延长组页岩油气的资源前景,总结利于其赋存的有利地质要素,研究采用生烃潜力法获得了甘泉地区的页岩油气资源为2.1×10~8t油当量。基于岩心观察、镜下识别、解吸实验等技术手段,对甘泉地区利于页岩油气赋存的地质要素进行了综合分析。研究结果表明,甘泉地区页岩品质较好,具备生油气的物质基础;薄砂纹层发育,储层的孔渗条件提高;构造缝遭受充填,抑制了油气的散失;油气水共存,构造运动对油气的的破坏作用有限。
Shale hydrocarbon is generated and stored within the shale system, and the quantity of shale hydrocarbon can be approximately equivalent to the quantity of hydrocarbon remained in shale. Thus, the quantity of shale hydro- carbon can be obtained using the metholds for calculating generated hydrocarbon. The hydrocarbon generation potantial methold was used to study the shale hydrocarbon resources, and the result shows that the shale hydrocarbon resources is 2.1×10^8t oil equivalent. By means of core observation ,microscopic identification and desorption experiments, a comprehensive analysis of favorable geological elements for forming hydrocarbon was summarized, the geological factors favorable to the occurrence of shale oil and gas in the study area was made. The result shows that, shale developed in Ganquan area has good source quality which provides material for forming hydrocarbon; thin sand layer are highly developed which improves the porosity and permeability of reservoir; structural fractures are filled with minerals which prevent the loss of hydrocarbon ; oil, water and gas coexist within the shale which limit the damage of tectonic movements.
出处
《延安大学学报（自然科学版）》
2017年第2期35-39,46,共6页
Journal of Yan'an University：Natural Science Edition
基金
鄂尔多斯盆地中部页岩油气资源及有利地质要素项目(YDBK2016-15)
关键词
甘泉地区
页岩气
油气资源
地质要素
Ganquan area
shale hydrocarbon
hydrocarbon resources
geological elements
