关键词: 拟合 Q 体, 吸收衰减, 分辨率, 振幅谱, 谱比法, 频谱

Abstract:

 Clay minerals are main component of hydrocarbon source rocks. They play an important role on oil and gas formation. There are a lot of disputes on present and absent of catalyst for catalytic role, and catalytic behavior performance in what aspects. Most of the researches support that clay minerals have no catalytic effect even have inhibitory effect on hydrocarbon generation In the open water system, but have catalysis in the closed system. There are two views on the catalysis of clay minerals. One view is that the catalysis of clay minerals can improve the hydrocarbon production rate, and increase the kinds of products of hydrocarbon; another think is that the catalysis of clay minerals only changes the composition of the product, without changing the hydrocarbon yield. The catalytic mechanisms of clay minerals are mainly carbon ion mechanism and the mechanism of free radical, which one plays a leading role in geological processes is not clear. The present study mainly focused on catalytic cracking supported by carbon ion mechanism which is lack of research on free radical mechanism, especially the role of free radicals playing in geological process. The research achievements of predecessors in this field were analyzed, to seek the causes of different results, expound new understanding of clay minerals catalytic research and put forward collaborative catalytic systems concept.

Key words:  fitting stereoscopic Q, attenuation, resolution, amplitude spectrum, spectral ratio method, frequency spectrum