河流相油田沉积微相与砂体规模、储层物性及地质储量的关系——以渤海周边陆区某油田一开发区块为例

The relationships of fluvial microfacies with sandbody size, petrophysics and oil reservesin place: a case of a development block in an onshore oilfield around Bohai Bay

以渤海周边陆区某油田一开发区块为例,研究了河流相油田沉积微相与砂体规模、储层物性及石油地质储量之间的关系。边滩微相砂体规模大、储层物性好,其次为天然堤;边滩微相砂体控制的储量约占总储量的73%,天然堤砂体控制的储量约占总储量的13%。研究结果对渤海类似油田经济有效的开发有借鉴意义。

Taking a development block in an onshore oilfield around Bohai Bay as an example, the relationships of fluvial microfacies here with sandbody size, petrophysics and oil in place are studied. The point bar microfacies is largest in sandbody size and best in petrophysics, and the natural levee microfacies comes second. The oil controlled by the point bar and levee sandbodies respectively accounts for 73% and 13% of the total reserves inplace in the block. These results will be useful to economic development of similar oilfields in Bohai Bay.