哈拉阿拉特山哈深2井油气来源及充注期次分析

Oil-gas Source and Timing of Hydrocarbon Charging for Well Hashen 2 in Hala′alt Area

准噶尔盆地北缘哈拉阿拉特山哈深2井在老山上获得10.08 m^3/d的工业油流,揭示了该区重大的勘探潜力。通过对该井油气来源、充注期次等的分析认为:哈深2井油藏为成熟的中质油、干气混杂,来源于哈拉阿拉特山下部深埋的二叠系风城组烃源岩;油气成藏时期为哈拉阿拉特山主体形成之后,侏罗纪时期烃源岩深埋达到高成熟,早期断层活化与后期新形成的断层联合输导,并在有利储层中聚集。

The Hala＇ ah area has huge exploration potential in the northern margin of Junggar basin, which can be revealed by the crude output 10.08 m3/d of well Hashen 2 located in this area. After studying the source and charging timing of hydrocarbon in well Hashen 2, comes to the conclusion that the the mixture of mature midlle oil and dry gas in this reservoir is from the source rock Fengcheng Formation of Permian system deeply buried under the Hala＇alt mountain; the timing of hydrocarbon charging is later than the formation time of the mountain; the maturity of the source rock reached a high level in Jurassic period, and the combined action of early-fault being active again and the newly formed fault as the migration pathways enabled the generated oil and gas to gather in the favorable reservoir.