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随着鄂尔多斯盆地延长探区勘探开发程度的不断深入,急需一套评价延长探区剩余可探明石油地质储量的计算标准。本次研究依据鄂尔多斯盆地岩性油藏独特的石油地质特点,紧密结合延长勘探开发实际,首次从区块勘探程度、源岩、油气运移优势路径、有效砂体发育程度、保存条件、构造背景、试油试采效果及后期投入工作量等八大方面提出了一套延长探区剩余可探明石油地质储量预测的标准流程。通过在延长探区的实际应用,新发现了多个有利区域,最终预测出的剩余可探明储量超过10亿t,取得了较好的应用效果。
With the deepening of exploration and development in the extended exploration area of the Ordos Basin, a set of criterions are urgently needed to evaluate the calculation criteria for prolonging the remaining proven oil reserves. Based on the unique characteristics of petroleum geology of lithologic reservoirs in Ordos Basin, this research, combining closely with the extension of exploration and development practice, firstly analyzes the extent of exploration, the dominant pathways of source rock and hydrocarbon migration, the development of effective sand bodies, preservation conditions, tectonic setting , The effect of trial oil and test mining and the workload of late-stage investment put forward a set of standard procedures to extend the prediction of remaining proven oil-related geological reserves in the exploration area. By extending the practical application of the exploration area, a number of favorable areas were newly discovered, and the remaining proved reserves surpassed 1 billion tons, which has achieved good application results.