The Balder Field: Refined Reservoir Interpretation with the Aid of High Resolution Seismic Data and Seismic Attribute Mapping

Rye-Larsen, M.

doi:10.1007/978-94-011-0896-6_8

Cited by 13 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…4a). The use of the dip map for structural interpretation has been documented by Dalley et al (1989), Hoetz & Watters (1992), Voggenreiter (1993), Rye-Larsen (1994) and Dorn et al (1995). This sample level attribute map highlights changes in dip of an interpreted seismic reflection.…”

Section: Dip Mapsmentioning

confidence: 96%

Seismic attribute analysis in structural interpretation of the Gullfaks Field, northern North Sea

Hesthammer

Fossen

1997

View full text Add to dashboard Cite

Seismic attribute maps provide a useful tool in interpreting faults, particularly those close to or below seismic resolution. Dip, relief, azimuth and amplitude maps are most useful. Optimal use of such maps requires careful filtering and appropriate use of colours and light sources. One of the challenges is to distinguish between anomalies related to real geological features and to seismic noise -both of which may occur as linear or curvi-linear, continuous features on the attribute maps. This challenge must be solved by use of independent data. In the North Sea Gullfaks Field, a family of (curvi-)linear features on the attribute maps are subparallel to contour lines on time maps. Core data, dipmeter data, stratigraphic log correlation and forward modelling show that these features are related to seismic noise rather than real faults.

show abstract

Section: Dip Mapsmentioning

confidence: 96%

Seismic attribute analysis in structural interpretation of the Gullfaks Field, northern North Sea

Hesthammer

Fossen

1997

View full text Add to dashboard Cite

show abstract

“…Over-steeped angles of the flanks of mound-like features (Larsen, 1994;Candace et al, 1995;Dixon et al, 1995). The top of such structures is often poorly imaged on seismic data.…”

Section: Fig 2 Randommentioning

confidence: 97%

Hydrocarbon leakage interpreted on seismic data

Løseth

Gading

Wensaas

2009

Marine and Petroleum Geology

335

244

View full text Add to dashboard Cite

“…For example, sand remobilization processes can result in significant changes to the reservoir geology, as summarized below ( Fig. 1 Jenssen et al, 1993;Rye-Larsen, 1994); development of pod-like sandbodies (e.g., Balder and Alba Fields); vertical intrusion of clastic dikes and sills above the reservoir (e.g., Forth/Harding, Frigg, Gryphon and Alba Fields; Newman et al 1993;Dixon et al, 1995), and sand intrusion up faults along the reservoir margins (Alba Field, Lonergan and Cartwright, 1999;MacLeod et al, 1999).…”

Section: Remobilization and Its Effect On Reservoir Geologymentioning

confidence: 99%

Remoblization and Injection in Deepwater Depositional Systems: Implications for Reservoir Architecture and Prediction

Lonergan¹,

Lee²,

Johnson³

et al. 2000

Deep-Water Reservoirs of the World: 20th Annual

View full text Add to dashboard Cite

$EVWUDFWSeveral productive Paleogene deepwater sandstone reservoirs in the North Sea show evidence of having undergone post-depositional remobilization and clastic injection, which can result in major disruption of the primary reservoir distribution (e.g., Alba, Forth/Harding, Balder, and Gryphon fields). Case studies of deepwater sandstones from UK Quadrants 9, 15, 16 and 21 are presented to illustrate the wide spectrum of remobilization features, which range from centimeters (e.g., core-scale) to hundreds of meters (e.g., seismic-scale). Most common are clastic injection structures such as dikes and sills. Sills of massive sand, over 20 m thick, have been identified. Intrusions associated with the propagation of syn-to early post-depositional, dewatering-related polygonal fault systems in adjacent deepwater mudrocks are also common. The scale of the clastic intrusion and remobilization has significant impact on reservoir architecture and production performance, including changes in (a) original depositional geometries; (b) reservoir properties; (c) connectivity, (d) top reservoir surface structure, (e) reservoir volumetrics, and (f) recovery/performance predictions.There are several prerequisites for sandstone intrusions to form: the source sediment must be uncemented, and the 'parent' sand body must be sealed such that an overpressure with a steep hydraulic gradient can be generated. The seal on the overpressured sand body must then be breached for the sand to fluidize and inject. The stress state within the basin, burial depth, fluid pressure and the nature of the sedimentary host rock all contribute to the final style, geometry and scale of intrusion. At shallow depths, within a few meters of the surface, small irregular intrusions are generated, more commonly forming sills, whereas at greater depth larger and more continuous dikes and sills form clastic intrusion networks. Field examples from the Ordovician in Ireland, and Panoche Hills in California are used to illustrate the control of burial depth/ stress on intrusion scale.Earthquake induced liquefaction, tectonics stresses and build-up of excess in-situ pore pressure are the most commonly cited explanations for the occurrence of clastic intrusions. However, our work suggests that the largescale, 'catastrophic' sandstone intrusions within the North Sea Paleogene, which remobilized hundreds of cubic meters of sediment, probably require the presence of fluids migrating from deeper within the basin (e.g., gas charge) to drive the injection. Deepwater sand bodies within the North Sea that appear most susceptible to remobilization occur in mud-dominated successions and include (1) narrow, elongate channel or gully-filled sands (i.e., non-

show abstract

The Balder Field: Refined Reservoir Interpretation with the Aid of High Resolution Seismic Data and Seismic Attribute Mapping

Cited by 13 publications

References 4 publications

Seismic attribute analysis in structural interpretation of the Gullfaks Field, northern North Sea

Seismic attribute analysis in structural interpretation of the Gullfaks Field, northern North Sea

Hydrocarbon leakage interpreted on seismic data

Remoblization and Injection in Deepwater Depositional Systems: Implications for Reservoir Architecture and Prediction

Contact Info

Product

Resources

About