致密油水平井产能主控地质因素研究

发布时间：2018-06-20 06:13

本文选题：致密油 + 主控因素　；参考：《特种油气藏》2017年02期

【摘要】：为明确地质因素对致密油水平井产能的影响,建立压裂水平井模型,利用数值模拟方法研究不同地质因素对产能的影响。通过定义影响因子,量化各因素对产能的影响,明确了产能的主控因素。结果显示:储层各参数对致密油水平井初期日产油量和累计产油量均有影响,但程度不同;通过对各参数影响因子的计算可知,天然裂缝发育程度、基质孔隙分布情况是致密油水平井单井初期产能的主控因素,而渗透率、天然裂缝发育程度及基质孔隙分布是致密油水平井单井累计产油量的主控因素。该成果明确了研究区单井产能的地质主控因素,有利于水平井的优化设计,对于提高致密油水平井单井产量具有一定的指导意义。
[Abstract]:In order to clarify the influence of geological factors on productivity of tight horizontal wells, a fracturing horizontal well model was established, and the effects of different geological factors on productivity were studied by numerical simulation method. By defining the influencing factors and quantifying the influence of each factor on productivity, the main controlling factors of productivity are defined. The results show that the reservoir parameters have influence on the daily oil production and accumulative oil production in the initial stage of the tight oil horizontal well, but the degree is different, and through the calculation of the influence factors of each parameter, it can be known that the natural fracture development degree, The distribution of matrix pores is the main controlling factor for the initial productivity of a single well in a tight horizontal well, while permeability, the degree of development of natural fractures and the distribution of matrix pores are the main factors controlling the cumulative oil production of a single well in a tight horizontal well. The results make clear the geological control factors of single well productivity in the study area, which is beneficial to the optimum design of horizontal wells, and has certain guiding significance for improving the single well production of dense horizontal wells.
【作者单位】：中国石油勘探开发研究院;中国地质大学(北京);
【基金】：国家科技重大专项“致密油开发目标评价优选”(2016ZX05046003-001-002)
【分类号】：TE155

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