CAJ | 학술논문

基于大量钻井、测井、录井及试油资料,结合岩心观察和薄片鉴定,对下寺湾油田龙咀沟地区长2油藏的油气富集规律及主控因素进行了研究。结果表明：下寺湾油田长2油藏的形成和富集受沉积相带、优质储层、鼻状隆起背景、断裂、区域盖层、运移通道等因素的控制。其中,鼻状隆起部位油藏最为富集,裂缝等垂向运移通道对长2油藏的形成和分布具有重要控制作用。长2油藏类型复杂多样,除岩性油藏以外,构造-岩性油藏也是其主要类型。
기우대량찬정、측정、록정급시유자료,결합암심관찰화박편감정,대하사만유전룡저구지구장2유장적유기부집규률급주공인소진행료연구。결과표명：하사만유전장2유장적형성화부집수침적상대、우질저층、비상륭기배경、단렬、구역개층、운이통도등인소적공제。기중,비상륭기부위유장최위부집,렬봉등수향운이통도대장2유장적형성화분포구유중요공제작용。장2유장류형복잡다양,제암성유장이외,구조-암성유장야시기주요류형。
Based on the data of well drilling,well logging,geological log and production test,combined with the core observation and thin section analysis,the hydrocarbon enrichment law and its main controlling factors of Chang 2 oil reservoir set in Xiasiwan Oilfield of Ordos Basin were studied.The result shows that the formation and enrichment of Chang 2 oil reservoir set are controlled by sedimentary facies,high quality reservoirs,nose-shaped uplift,fault,areal cap rock and migration pathway in Xiasiwan Oilfield,among which the nose-shaped uplift is the most favorable place for hydrocarbon enrichment.As migration pathways,fractures have significant effects on the formation and distribution of Chang 2 oil reservoir set.Lithologic reservoir and structural-lithologic reservoir are the main types of the Chang 2 oil reservoir set.