盘河地区是低序级断块富集的油气田。由于各级别的断层发育，导致勘探开发难度增大，正确识别低序级断层对于该区复杂断块油藏的勘探开发具有重要意义。随着地震资料采集、处理与解释技术的不断进步，低序级断层构造油藏三维精细描述逐渐成为可能，为此从多角度、多方位研究了开发地震技术以识别低级序断层，并系统优化了低序级断层的平面组合配套技术，重点应用了精细综合标定、水平切片、分频相干体、井控成图等地球物理勘探技术，将这些技术应用于该区低序级断层的识别与重新组合中，厘清了该区低序级断层的展布规律，对各断块和油水系统的边界进行了重新认识，明确了挖潜、调整的方向，取得了较好的滚动开发效果。
Panhe area is an oilfield with many low-level faults. Because of the complex fault system, the exploitation and exploration would become increasingly difficult, and it is important to identify correctly the low-level faults for the exploration of complex fault-block reservoirs. The well developed technology of collecting, processing and interpretating seismic data makes the 3D fine interpretation possible for low-level fault-block reservoirs. In this paper, an analysis of several exploitation seismic technologies is carried out from various angles to identify low-level faults, and the plane association matching technology of low-level fault is optimized. Then an explanation is made for the technologies of fine horizon calibration, horizontal slice, frequency-divided coherence, seismic forward modeling, as well as the well-controlled structure mapping technology. Panhe Area is taken as an example to apply these techniques to identify and recombine low-level faults. As a result, the distribution pattern of low-level faults in the area is obtained. In addition, the boundary of each fault block and oil-water system is identified, and the direction of exploration and regulation is made clear. The results show that these technologies can help petroleum exploration and development.
