复杂小断块油气藏滚动勘探开发研究

The rolling E&P of reservoirs in small complicated faultedblocks

（中国石化江苏油田试采一厂， 江苏扬州 225265）

Geology Research Institue, the First Recovery Factory, Jiangsu Oil Exploration Co.

YA是江苏油田最为典型的复杂小断块油气藏。断块破碎、玄武岩多次波干扰、辉绿岩屏蔽是地震勘探面临的主要困难。为此，在该地区采取了针对性的措施：①资料采集采用了合适的观测系统，如优化测网方向、提高覆盖次数；②采用处理解释一体化方法并借助于一些针对性的处理技术，以提高资料的处理质量；③运用综合的、多阶段的解释研究方法，即从研究火成岩的侵入机制入手，用地质理论指导地震解释，辅以三维立体解释技术,实现精细构造解释。上述措施的实施，使该区的滚动勘探开发取得了很好的成果，探明地质储量显著增加。

The geologic structure of YA area is very complex because of broken fault blocks, the mutiple interference caused by basalt and shielding action of diabase,which is a typical small complex hydrocarbon reservoir in Jiangsu oilfield. In order to make a breakthrough, to start with seismic data acquisition,using an proper layout,such as, optimzation survy grid direction、increasing coverage； Then, on the basis of integrated study for processing and interpretation, improve the quality of data process by means of some effective process technologies; Later, the fine structure interpretation is realized by means of comprehensive, mutiple periodic interpretation and research, ie.,beginning with resarching the mechanism of igneous rock invasion, geology theories as a guide, and 3D interpretation techology as an asistance; Finally, the rolling exploration and development to the area achieves complete success.