Abstract:

Based on the analyzing of the internal rhythmicity, inter layer differences, sandbody continuity in plane, quantity evaluation of interlayer and micro-pore structures of the reservoir in the upper Guantao formation (Ng)in Chengdao oil field, the first very large oil field in shallow-very shallow sea of China. The macro and micro anisotropy of Ng has been studied. The result indicates there is close relation with micro-facies and the development of the sand bodies. Four types of Pore structure model of this formation has also been built, which is very useful for the development and adjustment of Ng oil pools of this oil field.

Key words: anisotropy, internal rhythmicity, interlayer differences, sandbody continuity, pore structures, Chengdao oil field