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海上油田由于受海水深度和海况限制,钻井和录取资料的成本较高,如何最大限度地优化评价方案,减少钻井、取心和测试工作量,经济有效地加快新油田的评价,一直是海上油田评价的重点。以珠江口盆地新近系中新统NH-AB海相优质砂岩油田评价方案为例,在评价方案优化可行性分析基础上,通过对其评价井井位、井数、取心和测试资料的评价方案优化,可减少钻探评价井2口,只进行1次取心和1次试油,节约成本近亿元人民币,经济有效地加快了NH-AB油田探明石油地质储量的计算和开发评价,提高了海上油田评价的工作效率和经济性,为珠江口盆地该类型油田的快速评价提供借鉴。
Due to the limitation of seawater depth and sea conditions, the cost of drilling and admitting data is very high. How to optimize the assessment scheme, reduce the drilling, coring and testing workloads, and speed up the evaluation of new oilfields cost-effectively, has always been an issue of offshore oilfields Evaluation of the focus. Taking the evaluation of NH-AB marine sandstone oilfield in the Miocene of the Neogene in the Pearl River Mouth Basin as an example, based on the analysis of the feasibility of the evaluation scheme optimization, the evaluation of well location, well number, coring and test data of the evaluation well The program optimization can reduce 2 drilling evaluation wells, only 1 coring and 1 test oil, saving nearly 100 million RMB, and economically and effectively accelerating the calculation and development evaluation of proven oil geological reserves in NH-AB. Improve the efficiency and economy of offshore oilfield evaluation and provide a reference for the rapid assessment of this type of oilfield in the Pearl River Mouth Basin.