2000年1月1日 · In the central North Sea, OWCs in the Cretaceous Chalk Group and in Paleocene sandstones can be naturally tilted by bed-parallel hydrodynamic activity as the Central Graben dewaters. Examples of fields with interpreted tilted OWCs are described, and set within their regional hydrodynamic context.

2018年2月11日 · Understanding the characteristics of tilted oil-water contacts within reservoirs is important for well deployment, selection of well pattern and types, determination of test section, reservoir...

2016年12月1日 · In this paper, we derived an equation defining the surface of a tilted OWC. Based on the derived tilted OWC equation, an easy-to-understand alternative approach, “structure surface transformation approach”, was developed for mapping hydrodynamic traps.

根据该油藏储集层、流体和隔夹层特征,建立相应的地质模型,通过调整隔夹层的数量、分布范围、毛细管压力、天窗数量等,模拟该油藏油气二次运移成藏过程。 隔夹层数量及分布对倾斜油水界面的形成和油水分布有明显影响;隔夹层毛细管压力越大,油水界面倾斜幅度越大;隔夹层延伸长度越大,油水界面倾斜幅度越大;隔夹层天窗数量和位置不同,油藏成藏期末油水分布和油水界面也明显不同。 该油藏油水界面大幅度倾斜成因主要是隔夹层遮挡作用和成藏过程中油水重力分异作用,其 …

In the North Sea tilted oil–water contacts (OWCs) are recognized in fields of Paleocene, Cretaceous and Jurassic age. In areas where lateral pressure (potentiometric) gradients exist in the aquifer, OWCs dip in the direction of pressure drop and hydrodynamic flow occurs.

1998年7月1日 · In the central North Sea, tilted oil-water contacts (OWCs) are observed in several traps in the Cretaceous chalk and Palaeocene sandstone. These are thought to be caused by hydrodynamic activity in the aquifers as the Central Graben continually de-waters.

2005年1月1日 · In the North Sea tilted oil-water contacts (OWCs) are recognized in fields of Paleocene, Cretaceous and Jurassic age. In areas where lateral pressure (potentiometric) gradients exist...

It is found that the complex oil-water relationship in this oilfield is caused by the presence of a tilted OWC in the reservoir which is a structural-lithological reservoir with bottom/edge water.

2020年11月9日 · This study attempts to describe and model the process leading to the genesis of the tilted oil-water contact (OWC) observed in the lower part of the Thamama Group in an offshore Abu Dhabi field. Post-oil-migration deformation is thought to be the mechanism that produced a tilted OWC dipping towards the Northeast.

2000年12月31日 · In the central North Sea, OWCs in the Cretaceous Chalk Group and in Paleocene sandstones can be naturally tilted by bed-parallel hydrodynamic activity as the Central Graben dewaters. Examples of...