Application of Attribute Carving Technology in Fine Description of River Facies Reservoirs in the Western Bohai Sea

Shallow fluvial sedimentary sandstone in the western Bohai Bay Basin is an important reservoir sedimentary type in Bohai Oilfield. During the sedimentation process, due to frequent river diversion, the interaction and rapid lateral changes of sandstone and mudstone, coupled with the limitation of seismic data resolution, reservoir prediction is difficult under sparse well network conditions in offshore oil fields. To further improve the accuracy of understanding river facies reservoirs, under the constraint of precise isochronous stratigraphic framework, the RMS fusion attribute is selected to characterize the planar connectivity of reservoirs: conducting reservoir configuration research under RMS attribute constraints to clarify reservoir genesis; selecting natural gamma attributes for genetic inversion to predict changes in reservoir properties and ultimately achieving high-precision prediction results.