Carbonate Reservoir Quality Variations in Basins with a Variable Sediment Influx: A Case Study from the Balkassar Oil Field, Potwar, Pakistan oleh Muhammad Raiees Amjad, Muhsan Ehsan, Muyyassar Hussain, Nadhir Al-Ansari, Abdul Rehman, Zohaib Naseer, Muhammad Nauman Ejaz, Rafik Baouche, Ahmed Elbeltagi