Tekst: The Patos Marinza Oilfield, an established oil field in Albania with nearly a century of development, has undergone various transformations in its development methods. These include conventional cold production, PCP (progressive cavity pump) sand-carrying production, polymer flooding, and horizontal well sand-carrying cold production technologies, each yielding notable results. At its peak, annual output exceeded 1.1 million tons. However, as the field’s recovery degree increased, formation energy decreased significantly. The development of favorable cold recovery reservoirs has reached its final stage, while polymer injection development has also entered its later phase. These factors have led to pronounced challenges. Consequently, the entire oil field has entered a continuous period of decline in cold production, with annual output once dropping to 520,000 tons. The sustainable development of the Banks PM Oilfield now faces significant challenges.
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