为界定小油砂体薄油层参数,提高老油田的采收率和可采储量,针对孤东油田的沉积特点,应用精细油藏描述技术,研究了孤东油田七区西非主力小油砂体薄油层参数的界定标准,然后根据确定的标准对孤东油田七区西非主力小油砂体薄油层石油地质储量动用情况进行分析,并运用油藏工程及数值模拟技术确定开发技术政策界限,最后在分析目前注采状况的基础上,研究分析了剩余油潜力区,并预测可提高采收率12%以上,为进入开发后期的孤东油田提供了有利的开发依据。 In order to define the parameters of thin oil reservoirs in small oil sands and improve the recovery rate and recoverable reserves of old oil fields, according to the sedimentary characteristics of Gudong oil field, fine oil reservoir description techniques are applied to study the main oil sands According to the defined criteria, the paper analyzes the utilization of thin oil reservoirs in the West African small oil-bearing sandstone reservoirs in the 7th region of Gudong Oilfield and determines the limits of development technology policy by means of reservoir engineering and numerical simulation. Finally, Based on the analysis of current injection and production conditions, the remaining oil potential areas are studied and analyzed, and the predicted oil recovery rate can be increased by more than 12%. This provides a favorable basis for the development of Gudong Oilfield into the late development stage.