Coal layer reflection and its interpretating rock characteristic

Coal layer reflection has unique features of first break,phase,amplitude and frequency and wavegroup feature. By using variation of these dynamic characteristics, we can make interpretation of coal layer pinch out, analysis of coal layer depositional environment, comparison of coal layer branch and location of structure fault and infer variation trend of coal layer thickness and so on. The practical data in the article show clearly effect in interpretating rock characteristics by using coal layer reflection feature.