本文阐述了重油油藏冷采后采用注空气法(地下燃烧)的潜在应用状况。由于冷采油田在冷采的经济界限内仍遗留大量的能源,而且蚯蚓洞型的通道处于衰竭油藏之中,因此它是注空气的理想候选油藏。作者认为,蒸汽短时期进入衰竭油藏,会破坏“蚯蚓洞”,从而使受热通道产生较高的渗透率。受热的通道为可流动的原油到达生产井提供流路后,随即实施油藏点火和注空气。蒸汽/燃烧法的综合应用可在薄油藏,且持续注蒸汽无经济效益的油藏得到较高的经济效益。另外,该方法涉及到重油燃烧项目中失败的三个技术问题:无效点火、不适当的注空气速率以及由于流体的高饱和度造成的阻碍使地层临时性堵塞。本文概述了稠油冷采和稠油地下燃烧技术,并对推荐的注空气法进行了详细的讨论。 This paper describes the potential application of the air injection method (underground combustion) after heavy oil recovery. It is an ideal candidate reservoir for air injection due to the large amount of energy left over from the cold-drawn economic limits of the cold-field and the passage of earthworm holes in depleted reservoirs. The authors believe that steam entering the depleted reservoirs in a short period of time will destroy the “earthworm hole”, resulting in a higher permeability of the heated channel. The heated channel, after the flowable crude oil reaches the production well to provide a flow path, immediately ignites and injects air into the reservoir. The comprehensive application of steam / combustion method can be economically beneficial in thin reservoirs with no economic benefits of continuous steam injection. In addition, the method involves three technical problems that have failed in a heavy oil combustion project: ineffective ignition, improper air injection rates, and temporary blockage of the formation due to obstruction by high saturation of the fluid. This paper presents an overview of the heavy oil cold extraction and heavy oil underground combustion techniques, and a detailed discussion of the recommended air injection method.