Washed core and tracer tests data guide the characterization of single sand body in Low Permeable Reservoir

A Oilfield is Fluvial Facies Low Permeable Reservoir, main layer bend distributary channel sand body deposition, In order to better understand the distribution of single and remaining oil in reservoir, inspection well coring tracer tests have been carried out successively same area oilfield, based on these data, it found that, actual very different from original description both vertical plane. Discovered by core scale single-phase was too large. It originally considered be mudstone interlayer inside 0.2m body, which actually between bodies, this situation confirmed trace data five years later. The position plane are also description. thought that water with good internal connection not connected. Therefore, experience horizontal identification summarized guide subsequent characterization so as oilfield describe adjust tap potential.