海底扇水道储层参数建模新思路——以西非A油田为例

发布时间：2018-11-09 07:56

【摘要】：海底扇水道以深水重力流沉积为主,由于其成因机制复杂,导致岩石相类型多样,储层孔、渗分布复杂且相关性差,这给其储层参数建模带来一定的困难。以西非A油田为例,通过深入分析海底扇水道储层特征及其与地震属性的关系,在常规的"相控协同"建模的基础上,提出了一种适合于海底扇水道储层的"多级相控约束,多重属性协同"的储层参数建模新思路。与常规的相控建模相比,该思路在孔隙度建模中不是单纯的"沉积相控",而是在相构型建模约束下建立储集相模型,并以储集相模型约束建立孔隙度模型;考虑到深水水道砂体整体孔、渗关系差,但不同岩石相的孔、渗关系较好,故在渗透率建模中增加了"岩石相控";同时,在常规的协同建模的基础上,该思路还增加了地震属性协同建立储集相模型的环节。
[Abstract]:The submarine fan waterway is dominated by deep-water gravity flow deposition. Because of its complex genetic mechanism, the rock facies are diverse, the distribution of pore and permeability is complex and the correlation is poor, which brings some difficulties to the modeling of reservoir parameters. Taking West Africa A Oilfield as an example, by analyzing the characteristics of submarine fan waterway reservoir and its relationship with seismic attributes, and on the basis of conventional "phase control cooperation" modeling, a "multistage phase control constraint" suitable for submarine fan waterway reservoir is proposed. A new idea of reservoir parameter modeling based on multiple attributes synergy. Compared with conventional phase control modeling, this idea is not a simple "sedimentary facies control" in porosity modeling, but a reservoir phase model is established under the constraints of phase configuration modeling, and porosity model is established by the constraints of reservoir phase model. Considering that the whole pore in deep water channel has poor permeability relationship, but the permeability relation of different rock facies is good, the "rock facies control" is added in permeability modeling. At the same time, based on the conventional collaborative modeling, this idea also adds the link of seismic attribute collaborative establishment of reservoir phase model.
【作者单位】：中国石油大学(北京)地球科学学院;中海油研究总院;
【基金】：国家科技重大专项(2011ZX05030-005-02)
【分类号】：P618.13

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