CAJ | 학술논문

勘探实践证实，车镇凹陷存在油气“倒灌”运移成藏现象。物理模拟实验也证实，油气运移过程中，存在以断裂为运移通道和以骨架砂体为运移通道的两种油气“倒灌”类型。以断裂为运移通道的油气“倒灌”，断裂是油气“倒灌”的重要通道，而分子置换是油气“倒灌”的形成机制，其所形成的油气藏规模较小；以骨架砂体为运移通道的油气“倒灌”，压力差是控制油气向下运移的重要动力，油气“倒灌”所需的最大压力取决于与其相关的砂体物性，可形成规模可观的油气藏。油气“倒灌”的物理模拟为含油气盆地扩大深层油气勘探提供了理论支持。
감탐실천증실，차진요함존재유기“도관”운이성장현상。물리모의실험야증실，유기운이과정중，존재이단렬위운이통도화이골가사체위운이통도적량충유기“도관”류형。이단렬위운이통도적유기“도관”，단렬시유기“도관”적중요통도，이분자치환시유기“도관”적형성궤제，기소형성적유기장규모교소；이골가사체위운이통도적유기“도관”，압력차시공제유기향하운이적중요동력，유기“도관”소수적최대압력취결우여기상관적사체물성，가형성규모가관적유기장。유기“도관”적물리모의위함유기분지확대심층유기감탐제공료이론지지。
The exploration practice proves that the phenomenon of the oil and gas backflow exists in Chezheng Depression, the physical simulation experiments of the oil and gas accumulation confirmed that there are two types of oil and gas intrusion in hydrocarbon migration process,i.e. fracture as migration channel and the sand body framework as migration channel,the former is the important channel of the oil and gas backflow,however molecular replacement is the formation mechanism,and the oil and gas pool is of small size. the latter in sand body framework for migration of oil and gas intrusion,is that pressure difference controlling petroleum downward migration is an important driving force. The desired maximum pressure depends on the related physical property of sandbody,and it can form large-scale oil and gas reservoirs. The research provides theoretical support for the expansion of deep oil and gas exploration in petroliferous basin.