Skjold

Location and Geology

• The Skjold oil field is located in the Danish part of the North Sea, in shallow water.
• It is part of the North Sea rift system, which includes Upper Jurassic-source rocks, Cretaceous chalk, and lower Tertiary sandstones. The Skjold Field specifically involves chalk reservoirs, which are known for their low permeability.

Field Characteristics

• The Skjold Field is a conventional oil field and operates as a satellite development to the Gorm Field. It includes two wellhead platforms, Skjold A and B.
• The field is characterized by a fractured chalk reservoir, which presents unique challenges and opportunities for oil recovery. The low permeability of the chalk reservoirs requires specialized production strategies.

Production and Operations

• The Skjold Field receives support from the Gorm Field, including injection water and lift gas, which are crucial for maintaining and enhancing oil recovery.
• The production from the Skjold Field is managed by Total E&P Denmark.
• Given the nature of the chalk reservoir, advanced techniques such as fracture stimulation may be employed to improve oil recovery, similar to those used in other Danish fields like Halfdan.

History and Development

• The Skjold Field was discovered in 1977 and began production in 1982.
• Early evaluations of the field's performance highlighted the challenges and opportunities associated with fractured chalk reservoirs. These evaluations were crucial for optimizing the field's development and production strategies.

Production Levels and Impact

• While specific current production levels for the Skjold Field are not detailed in the sources, it is known that the field is one of the smaller fields in the Danish North Sea. The overall production from Danish oil fields has been declining, with the Skjold Field contributing to this broader trend.
• The field's production is part of the larger context of Danish oil and gas production, which has seen significant declines in recent years due to the depletion of major fields like Dan, Gorm, and Halfdan.

Infrastructure and Integration

• The Skjold Field is closely integrated with the Gorm Field, relying on it for essential services such as injection water and lift gas. This integration is typical of the Danish oil and gas sector, where larger fields often serve as hubs for smaller satellite fields.

In summary, the Skjold oil field is a smaller, conventional oil field in the Danish North Sea, characterized by a fractured chalk reservoir with low permeability. It operates as a satellite to the larger Gorm Field and faces production challenges that require specialized techniques to optimize oil recovery.