Reservoir quality evaluation and prediction in ultra-deep tight sandstones in the Kuqa depression, China

Diagenetic Controls on Tight Sandstone Reservoir Quality: A Case Study from the Huaqing Oilfield, Ordos Basin

“…Dissolution, on the other hand, may create secondary porosity and improve reservoir performance. , The concept of diagenetic facies analysis includes a comprehensive description of the type and intensity of diagenesis and the occurrence of diagenetic minerals . It is practically used to predict production sweet spots in tight reservoirs and to delineate facies types to categorize reservoir property classes. − However, at present, there are different methods to classify the diagenetic facies of tight sandstone reservoirs focusing on different parameters, and a more unified approach is urgently needed. ,− …”