我国东部某地油气微渗漏的遥感研究

我国东部某地一些油气田区的遥感图像(本文为国土卫星彩红外片)上,常见有一些灰白色、浅褐色云雾状色调异常,经过地植物、土壤的地面光谱测试和土壤气体化探检查,发现色调；异常范围内、外植物和土壤光谱存在一定差异,异常内还发现有烃类气体异常,这种色调异常极有可能与油气微渗漏有关。对这种遥感图像上的色调异常进行的计算机增强处理研究表明,正规化与频谱变量、时间变量标准化交换组合处理效果较好,处理后的图像上色调异常显示十分明显。据永安地区国土卫星彩红外片正规化、标准化组合处理图像上显示的色调异常与已知油气田十分吻合,说明该处理方法是有效的。

A STUDY OF SLIGHT-SEEPAGE OF OIL-GAS BY REMOTE SENSING,TECHNOLOGY IN AN OIL FIELD

Some foggy tone anomalies of grey-white and light-brown are always seen on the remote sensing imageries in some oil fields of Eastern China. The ground spectral test of vegetation and soil, and, the chemical inspection of soil. gas discovered that the spectra of vegetation and soil were different inside and outside the tons anomalies, and in which some hydrocarbon anomalies existed. Thus, the author supposed the tone anomalies might be related to the slightseepage of oil and gas. Through the digital processing of the imageries, such as contrast enhancement, regularizational alternation both of spectral and time variations etc, the tone anomalies on the imageries showed more clearly, and coincided with the known oil-gas structures very well.