In Chapter ⅲ, the author first introduces several big petroleum engineering enterprises in the world and the present situation of Yellow River Drilling Corporation, then using the theory introduced in chapter ⅱ to analyze the constitution and deficiency of the SCM for petroleum engineering enterprises. 第三章首先介绍了世界上几大石油工程企业和本文主要关注的黄河钻井总公司现状,然后用第二章介绍的供应链相关理论分析石油工程企业供应链的构成和存在的问题。