大牛地气田盖层及烃源岩对气产量的影响

Influence of caprock and source rock on gas production in Daniudi gasfield

通过用测井方法来研究盖层的厚度、孔隙度等参数及烃源岩厚度分析的基础上,从盖层封闭质量和烃源岩厚度等角度,探讨了气田盖层的质量对气层产量的制约关系,进而对大牛地气田气层高产、低产及出水等几方面问题进行了分析,提出了测井解释要引入盖层和储层及烃源岩相结合的综合解释方法。

By using logging method, based on the analysis of the following parameters such as the depth of caprock, porosity, and the depth of source rock, and from the angle of sealing quality and the depth of source rock, this paper discusses the constrain relationship between the caprock quality and gas production, and makes a further a-nalysis on high yield, low yield and water output of gas production. It is suggested that the comprehensive interpretation method with the source- reservoir - cap rock combinations should be introduced into logging interpreta- tion.