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Proven reserves of oil and gas reflect the value of the oilfield and its future development. At present, the developed reserves of Daqing oilfield play an absolutely dominant role in the proved reserves. Under the condition of certain parameters, the economic limit yield plays a decisive role in the developed reserves, and the split ratio of operation cost is one of the key factors affecting the economic limit yield. The impact of operation cost splitting ratio on the evaluation of listed developed reserves is studied to provide support for the objective and reasonable evaluation of developed reserves in the future. Based on the formula of economic limit production, the relationship between economic limit production and operating cost splitting ratio of a single well is derived, and the effect of operating cost splitting ratio on the verified developed reserves under different oil prices is obtained. The results show that the change of operation cost splitting ratio under low oil price has great influence on the proved developed reserves.

Impact of Oilfield Operating Cost Splitting Ratio on the Evaluation of Listed Developed Reserves