��������ϵͳ��Ȧ�յ���ģ��̽��

油气评价系统中传统圈闭地质模型建立时的“生、储、盖、运、圈、保”可以分成三个层次：①圈闭获得油气的能力；②圈闭的储集能力；③圈闭的后期保存条件。这三个层次构成圈闭地质建模的“三要素”，依据不同的地质条件，其侧重点不同。在对圈闭模型参数赋值、计算得到圈闭含油气性系数的基础上，结合圈闭可靠性评价结果，便可以得到圈闭的成藏系数或圈闭的地质风险系数。

Discussion on Establishing Trap Geological Model in Oil and Gas Evaluation Systems

When the conventional trap geological model was being established in oil and gas evaluation systems，the “Generation，Reservoir，Sealing，Migration，Trap and Preservation” might be divided into three parts，ie① the ability for entrapping oil and gas in trap；② the one for storing oil and gas in trap；③ the late preservation conditions of the trap，which makes up the “Three Key Factors” of establishing the trap geological modelObviously the emphasis is various according to different geological conditionsOn the basis of assigning values to the trap model parameters to calculate the hydrocarbon potential coefficient of the trap，the reservoir formation or geological risk coefficient of the trap may be achieved in combination with the evaluation results of trap reliability.