DISTRIBUTION PATTERN OF THE MEANDERING RIVER RESERVOIR:A CASE FROM THE P OILFIELD IN BOHAI

Meandering river deposits are changing strongly in lateral direction. It is difficult to define the lateral distribution pattern only with drilling data. Seismic attributes incorporated with drilling data are applied in this paper to delineate the spatial distribution of meandering rivers and the boundaries of the fluvial deposits under the guidance of the existing depositional model. Firstly, well data are used together with spatial seismic attributes to disclose the general extension of river channels. Inter-well cross sections and the seismic attribute profiles are then adopted to define the boundaries of channels. As the result, the distribution pattern of the meandering river channel deposits in a three dimensional framework is established. Practice proves that the result is effective to support the design of development wells in the area.