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针对阿尔及利亚Zarzaitine油田海底扇相储层沉积特征,综合各种地质、测井及分析化验资料,对油田F4油藏储层非均质性进行了深入研究。研究表明,F4储层具有强烈的层间、平面、层内及微观非均质性,发育稳定隔层,其平面上非均质性受砂体成因类型控制明显,层内渗透率韵律特征明显,压实、胶结及溶解作用共同影响储层孔隙度,并形成了强烈的微观孔隙结构非均质性。储层非均质性的研究进一步加深了对F4油藏储层的认识,可以为开发层系调整、开发调整方案编制等提供地质依据。
Aiming at the sedimentary characteristics of submarine fan facies reservoirs in the Zarzaitine field in Algeria, the reservoir heterogeneity of F4 reservoir in the oil field has been studied based on various geological, well logging and analytical laboratory data. The results show that the F4 reservoir has strong interlayer, planar, intra-layer and micro-heterogeneity and stable barrier. The in-plane heterogeneity is controlled by the genetic type of sand body, and the rhythm of permeability in the layer is obvious Compaction, cementation and dissolution together affect the reservoir porosity and form a strong microscopic pore structure heterogeneity. The study of reservoir heterogeneity further deepens the understanding of F4 reservoirs and provides geological basis for the adjustment of development strata system and development adjustment plan.