在致密裂缝性油藏中采用常规驱替方法(例如水驱)采油效果不好。在这种油藏中,必须依靠天然机理从储集岩基质中采油。在中东裂缝性碳酸盐岩中,基质一般是油湿和混合润湿的,并且只有重力泄油是可行的工艺。但是,渗透率通常较低,导致重力泄油采油量低,剩余油饱和度和/或毛 In conventional fractured reservoirs, conventional flooding (eg water flooding) is not effective. In this reservoir, it is essential to rely on natural mechanisms to recover oil from the reservoir rock matrix. In the Middle East fissured carbonate, the matrix is ​​generally oil-wet and mixed-wet, and only gravity drainage is a viable process. However, the permeability is usually low, resulting in low gravity oil drainage, residual oil saturation and / or gross