非常规/复杂油藏

研究详情 稠油油藏自下而上注水策略

本文介绍了一项综合研究的结果,该研究旨在提高对深层自下而上注水的理解,从而优化阿曼南部稠油油田的采收率。

马维斯组

完整的论文介绍了一项综合研究的结果,旨在提高对深层自下而上注水的理解,从而优化阿曼南部稠油油田的采收率。该研究的结论是,稠油油田的油藏管理 (WRM) 策略与经典的轻油注水开发策略不同。然而,储层非均质性、油柱厚度和饱和度历史也是稠油油田注水响应变化的重要因素。

领域背景

G油田位于马斯喀特以南700公里处的南阿曼盐盆地东侧。主要生产储层是海马群的 Mahwis 砂,最终形成两个储集层(G Main 和 G East)。Mahwis 地层由碎屑沉积物和多个胶结带夹层组成,这些胶结带在某些地区经常充当挡板(图 1)。

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Unconventional/complex reservoirs

Study Details Strategy of Bottom-Up Water injection in a Heavy Oil Reservoir

This paper presents the results of a comprehensive study performed to improve understanding of deep bottom-up water injection, which enabled optimizing the recovery of a heavy oil field in South Oman.

Mahwis formation

The complete paper presents the results of a comprehensive study aimed at improving the understanding of deep bottom-up water injection, which enabled optimizing recovery in a heavy oil field in south Oman. The work concludes that the well-reservoir-management (WRM) strategy for a heavy oil field is not the same as one for a classic light oil waterflood. Nevertheless, the reservoir heterogeneity, oil-column thickness, and saturation history also are important factors for variable water-injection response in a heavy oil field.

Field Background

The G field is on the eastern flank of the South Oman Salt Basin 700 km south of Muscat. The main producing reservoir, the Mahwis sand of the Haima group, culminates in two accumulations (G Main and G East). The Mahwis formation is composed of clastic sediments interlayered with several cemented zones, which often act as baffles in some areas (Fig.

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