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4 2 珠江口盆地珠三坳陷油气成藏动力学系统研究 珠三坳陷面积 12 180ｋｍ2 ,由 6个凹陷、3个凸起组成 ,目前油气发现主要集中在文昌Ａ、Ｂ两个主要生烃凹陷 (图 16 )。截至 1999年底 ,珠三坳陷及其邻区共作图 16 珠江口盆地珠三坳陷构造单元划分图 二维地震 5 1× 10
4 2 STUDY ON HYDROCARBON ACCUMULATION DYNAMICS OF THE ZHU SAND DEPRESSION IN THE PEARL RIVER MOUTH BASIN The Pearl River Mouth depression area is 12-180 km2 and consists of 6 depressions and 3 bulges. At present, hydrocarbon discoveries are mainly concentrated in the two major hydrocarbon generating stations of Wenchang A and B Depression (Figure 16). As of the end of 1999, the Pearl River Sag and its adjacent areas are co-developed. Figure 16: The structural units of the Zhujiang-Sanzhu depression in the Pearl River Mouth Basin 2-D seismic 5 1 × 10