利用碳氧比测井资料识别气层

Finding Gas Zones from Carbon/Oxygen Logs

天然气作为主要能源正变得日益重要。国内对气层的判别方法不下十余种,但在套管井或正在开发的调整井中尚缺有效的测井方法。本文介绍利用碳氧比测井资料识别气层的方法,即利用FCC与Cl重叠、So与SOCO交会的方法来识别气层。该方法不仅能识别浅层气层,而且对判别深层气层也见到了可喜的地质效果。

Gas is becoming more and more important as one of the main energy resources. There are about ten more kinds of methods to determine gas zones in China. However, there is no effective method yet for cased wells and adjustment wells in production. This paper presents a gas zone determination method, which overlaps FCC with CI and crossplots S_0 with SOCO to find out gas zones. The method is able to identify not only shollow gas zones but also deep gas zones.