计算机X射线层析，简称CT，是一种新的测量不透明物体内部密度及结构的放射性成像技术。其问世之初，仅应用于医疗辐射学上。八十年代后期，CT扫描仪经历了很大的发展，CT技术应用领域也逐渐拓展。石油工程中的CT应用在国外已开展多年，但在国内，这个领域的CT技术的应用几乎还 Computer tomography, referred to as CT, is a new radiological imaging technique that measures the internal density and structure of opaque objects. When it came out, it only applied to medical radiology. The late eighties, CT scanner has undergone great development, CT technology applications are gradually expanding. The CT application in petroleum engineering has been carried out in foreign countries for many years, but in China, the application of CT technology in this field almost