印尼苏拉威西地区波尼盆地形成及其石油地质特征

波尼盆地是一个新生代裂谷盆地，勘探程度极低，其含油气系统及主要勘探层系不明。采用类比分析方法，通过对周边构造演化和沉积特征相似盆地的烃源岩、储层特征及含油气系统分析，进一步推测波尼盆地发育始新统潮坪-潟湖相烃源岩，品质较好，为Ⅱ—Ⅲ型干酪根，普遍处于成熟—高成熟阶段，以生油为主。该盆地共发育3套潜在储盖组合，最主要为中、上中新统—上新统Tacipi组生物礁储层及上新统区域性海相泥岩储盖组合，油气勘探前景较好。

FORMATION AND PETROLEUM GEOLOGICAL CHARACTERISTICS OF BONE BASIN IN SULAWESI AREA,INDONESIA

The Bone Basin is a Cenozoic rift basin with very low exploration degree. Its petroleum system and main exploration targets are both unclear. Based on the comparative analysis of source rocks, reservoir characteristics and petroleum systems with the basins having similar tectonic history and depositional characteristics, we recognized that the Eocene tidal flat-lagoon facies source rocks are of good quality with type II-III kerogen. They are generally in a mature-high mature stage and oil-prone. Three sets of potential reservoir-seal assemblages are developed in the Bone Basin, the most important of which are the reef reservoirs in the Tacipi Formation from Mid-Upper Miocene to Pliocene and the Pliocene regional marine mudstone as covers. Therefore, the basin has great potential for oil and gas accumulation.