Abstract:

Condensed section could be identified according to seismic data,well log, geochemical and fossil markers. Since its deposition environment was relatively stable, the species of orgomisms are various and organic matter is rich enough, the section could be taken as a key in stratigraphic correlation. It has been proved in practice that this kind of sections are usually important source rocks or regional cap rocks. According to the above mentioned markers, the Jiergalangtu Depression could be divided into five condensed sections with considerable oil generation potential.