The missing complexity in seismically imaged normal faults: what are the implications for geometry and production response?

Wood, Alan; Paton, Douglas; Collier, Richard E. Ll.

doi:10.1144/sp421.12

Cited by 6 publications

(8 citation statements)

References 51 publications

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“…Wood et al (2015) describe an integrated study where seismic and outcrop resolution datasets were combined to construct a geocellular model to simulate the flow behaviour of oil within a reservoir under depletion. The structural and stratigraphic resolution of the model was shown to have a significant impact on the modelled production history of the reservoir, primarily as a result of the degree to which cross-fault reservoir juxtaposition and permeability is represented, and underscores the importance of capturing sufficiently detailed and realistic structural complexity within dynamic models.…”

Section: Structural Integration and Case Studies From Industrymentioning

confidence: 99%

Industrial structural geology: principles, techniques and integration: an introduction

Richardson¹,

Richards

Rippington³

et al. 2015

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This volume explores how structural geology can be applied to industrial activities. It includes case studies that exhibit the state of the art and provides an overview of current and future trends in structural geology. The constituent papers cover a wide range of topics, including regional tectonics; trap and prospect definition; fault, fold and fracture analysis; seal analysis; interpretation of geophysical, borehole, core and outcrop data. The volume demonstrates how structural concepts ultimately create value and how academic institutions, specialist consultants and operating companies work together at a variety of scales and in varied geological settings to explore for and produce natural resources for the economic benefit of society.

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Section: Structural Integration and Case Studies From Industrymentioning

confidence: 99%

Industrial structural geology: principles, techniques and integration: an introduction

Richardson¹,

Richards

Rippington³

et al. 2015

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show abstract

“…inlines ILs or crosslines XLs), which are then used to generate fault surfaces (e.g. Yielding and Freeman, 2016). Fault displacement is analysed by studying the interaction between the displaced horizon reflectors and the fault surface (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…multiple maxima), which can help to determine the structural history of fault linkage (Needham et al, 1996). A complete workflow for 3D structural interpretation in seismic data using various attribute volumes, reflection data, rendered volumes, and an overview of structural framework building has been presented by Yielding and Freeman (2016). In addition, Solum et al (2016) recommended a combination of seismic interpretation, the analysis of structure maps, fieldwork, and geomodelling as the fundamentals of structural analysis.…”

Section: Introductionmentioning

confidence: 99%

The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea

et al. 2021

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Abstract. Five seismic interpretation experiments were conducted on an area of interest containing a fault relay in the Snøhvit field, Barents Sea, Norway, to understand how the interpretation method impacts the analysis of fault and horizon morphologies, fault lengths, and throw. The resulting horizon and fault interpretations from the least and most successful interpretation methods were further analysed to understand their impact on geological modelling and hydrocarbon volume calculation. Generally, the least dense manual interpretation method of horizons (32 inlines and 32 crosslines; 32 ILs × 32 XLs, 400 m) and faults (32 ILs, 400 m) resulted in inaccurate fault and horizon interpretations and underdeveloped relay morphologies and throw, which are inadequate for any detailed geological analysis. The densest fault interpretations (4 ILs, 50 m) and 3D auto-tracked horizons (all ILs and XLs spaced 12.5 m) provided the most detailed interpretations, most developed relay and fault morphologies, and geologically realistic throw distributions. Sparse interpretation grids generate significant issues in the model itself, which make it geologically inaccurate and lead to misunderstanding of the structural evolution of the relay. Despite significant differences between the two models, the calculated in-place petroleum reserves are broadly similar in the least and most dense experiments. However, when considered at field scale, the differences in volumes that are generated by the contrasting interpretation methodologies clearly demonstrate the importance of applying accurate interpretation strategies.

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“…Given that factors controlling this rate are mostly related to synsedimentary tectonic processes, the subsidence curves can also explain the geodynamic evolution of sedimentary basins [6][7][8] including, paradoxically, those tectonically stable [9]. Subsidence analysis is a methodology widely employed in the study of basins of very different ages and origins, particularly in relation to hydrocarbon exploration [10][11][12][13][14]. It is also increasingly used in land planning, specifically, in the identification and quantification of subtle accommodation changes anthropically related [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Basin Evolution and Massive Sulfide Deposition at Rammelsberg (Germany): Updating the Subsidence Analysis

2019

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The Rammelsberg sulfide deposit is classically considered as a SEDEX-type deposit. The origin of SEDEX-type massive sulfides links with the evolution of their hosting basins. They frequently constitute the source for the metal-enriched basinal brines transported afterwards as mineralizing hydrothermal fluids. This study revisits previous data concerning the analysis of the basin that hosts the Rammelsberg deposit, the Goslar basin, updating its subsidence analysis and providing new tectonic and total subsidence curves from two different paleogeographic locations: the depocenter and the basin margin. The basin evolution is defined by five stages depicting different subsidence intensity and mechanisms for each of these locations. The stratigraphic position of Rammelsberg coincides with a drastic change in the basin evolution. A rapid tectonic subsidence event is proposed as a trigger mechanism for hydrothermal activity. The paleogeographic location and the relation between supply of mineralizing fluids and sedimentation rate were critical for the concentration or dissemination of sulfides.

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The missing complexity in seismically imaged normal faults: what are the implications for geometry and production response?

Abstract: 13The impact of geometric uncertainty on across-fault flow behaviour at the scale of individual

Cited by 6 publications

References 51 publications

Industrial structural geology: principles, techniques and integration: an introduction

Industrial structural geology: principles, techniques and integration: an introduction

The impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents Sea

Basin Evolution and Massive Sulfide Deposition at Rammelsberg (Germany): Updating the Subsidence Analysis

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