关键词: 薄层砂岩, 分形, 分形插值, 储层描述, 油气勘探

Abstract: For the reason of complexity,the spatial geometry of thin sandstone can not be precisely described by seismic data as the limitation of its resolution,and random deposition can not be done by the method of classic linear mathematics.The analyses of a great quantity of depositional data in micro macroscope as well as well logging facies indicate that the sedimentation of horizons has its own fractal characteristic,thus the geologic model can consequentially be created through the statistical geologic data,under the constraint of the data of seismic and well logging,the spatial geometry of interwell thin sandstones can then be determined by the fractal interpolational algorithm.The non linear mathematic method has higher resolution and reliability,and further reduce the uncertainty in the description of thin sandstones.So that,it is of great significance in predicting the distribution and thickness of thin sandstone reservoirs.

Key words: thin sandstone, fractal interpolation algorithm, reservoir description, exploration of oil & gas