The development of fluvial stochastic modelling in the Norwegian oil industry: A historical review, subsurface implementation and future directions

Keogh, Kevin J.; Martinius, Allard W.; Osland, Rune

doi:10.1016/j.sedgeo.2007.05.009

Cited by 58 publications

(39 citation statements)

References 33 publications

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“…The aim of this study was to evaluate to what extent the concept of outcrop analogue studies, as commonly applied in hydrocarbon exploration (Budding and Inglin 1981;Keogh et al 2007), could be used to improve predictions about the quality of geothermal reservoirs, with focus on permeability.…”

Section: Discussionmentioning

confidence: 99%

Predictability of properties of a fractured geothermal reservoir: the opportunities and limitations of an outcrop analogue study

et al. 2017

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Section: Discussionmentioning

confidence: 99%

Predictability of properties of a fractured geothermal reservoir: the opportunities and limitations of an outcrop analogue study

et al. 2017

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“…The SAFARI project from the mid-1980s to the early 1990s Keogh et al 2007) was undertaken by a consortium of Norwegian Oil Companies, universities and the Norwegian Petroleum Directorate. The project collected outcrop data from seven outcrops, with the specific goal of compiling a database of analogues for conditioning the new breed of stochastic reservoir modelling tools that were emerging at that time from the Norwegian Computing Centre.…”

Section: Early Development and Evolution Of Quantitative Outcrop Analmentioning

confidence: 99%

“…Over the last 30 years, computer-based, geocellular models have become a routinely used tool for understanding subsurface reservoirs (Budding & Inglin 1981; review in Keogh et al 2007). Such models are typically built to aid field development and reservoir management business decisions, but also serve the purpose of integrating disparate scales and types of subsurface data, and visualizing complex three-dimensional (3D) distributions of rocks and fluids.…”

mentioning

confidence: 99%

The application of outcrop analogues in geological modelling: a review, present status and future outlook

2014

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Analogues, especially outcrop analogues, have played a central role in improving understanding of subsurface reservoir architectures. Analogues provide important information on geobody size, geometry and potential connectivity. The historical application of outcrop analogues for understanding geobody distributions in reservoirs is reviewed, from the pioneering work of the 1960s to the high-tech virtual outcrop methodologies of today. Four key types of analogue data are identified: hard data, which describe the dimensions and geometry of the geobody; soft data, which describe the conceptual relationships between different geobody types; training images, which record the dimensions, proportions and spatial relationship; and analogue production data, which are taken from direct subsurface production analogues. The use of these different data types at different stages of the geomodelling workflow is discussed and the potential sources of error considered. Finally, a review of geobody and analogue studies in different clastic environments is discussed with reference to selected previous work and the range of papers in the current volume.Over the last 30 years, computer-based, geocellular models have become a routinely used tool for understanding subsurface reservoirs (Budding & Inglin 1981; review in Keogh et al. 2007). Such models are typically built to aid field development and reservoir management business decisions, but also serve the purpose of integrating disparate scales and types of subsurface data, and visualizing complex three-dimensional (3D) distributions of rocks and fluids. Since the application of early modelling tools, to the present day, it has been common practice to supplement sparse subsurface datasets (e.g. wells and seismic) with data and concepts derived from reservoir analogues. The intention of this process is to generate more accurate representations of the subsurface than would otherwise be possible. Considerable effort has been expended in recent years by industry and academia on the description of reservoir analogues for this purpose. This paper examines the challenges inherent in selection and application of appropriate analogue data, particularly quantitative datasets, during construction of geological models.The most commonly used type of analogue is the outcrop, where information on geometric data that are limited in the subsurface is more readily available in cliff sections. Analogues may also include subsurface data but this is less common. This aspect is considered briefly in this review. The perspective on the application of analogues as discussed here is with regard to sedimentology and stratigraphy applied to hydrocarbon reservoir analysis, and the insights that 3D facies models bring to the distribution of petrophysical properties that control hydrocarbon flow. The discussion is based on clastic systems, but many of the aspects described are equally as applicable to carbonates, although they are not discussed explicitly here. Other branches of subsurface modelling, no...

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“…Uma forma de predizer a performance e planejar o desenvolvimento de reservatórios petrolíferos é caracterizá -los quantitativamente, ou seja, atribuir propriedades a eles, reconhecendo informações geológicas e incertezas relativas à variabilidade espacial (Keogh et al, 2007). No entanto, os dados disponíveis nos poços são geralmente insuficientes e incompletos diante da dimensão do reservatório.…”

Section: Justificativaunclassified

“…As heterogeneidades de um reservatório podem ser definidas como o resultado da variação lateral e vertical das rochas do reservatório, nas mais diversas escalas, sendo as principais relacionadas à textura dos grãos, aos processos diagenéticos e aos processos de carstificação em rochas carbonáticas. Contribuem também as feições deformacionais, como as falhas e fraturas, responsáveis pela conectividade entre os corpos ou a existência de barreiras de fluxo.Uma forma de predizer a performance e planejar o desenvolvimento de reservatórios petrolíferos é caracterizá -los quantitativamente, ou seja, atribuir propriedades a eles, reconhecendo informações geológicas e incertezas relativas à variabilidade espacial (Keogh et al, 2007). No entanto, os dados disponíveis nos poços são geralmente insuficientes e incompletos diante da dimensão do reservatório.…”

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Imageamento digital e modelagem virtual 3D de um bloco de rocha travertina

Silva

Castro

Souza

et al. 2014

Geol. USP, Sér. cient.

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Disponível on-line no endereço www.igc.usp.br/geologiausp -75 -Resumo Neste trabalho são apresentados os procedimentos metodológicos envolvidos no imageamento digital de um bloco de rocha travertina quaternária em uma escala não convencional, pesando 21,2 ton e medindo 1,60 x 1,60 x 2,70 m, que se encontra no Laboratório Experimental de Petróleo "Kelsen Valente" (LabPetro), da Universidade Estadual de Campinas (UNICAMP). O bloco, denominado de T-Block, foi disponibilizado pela Petrobras com o objetivo de permitir o seu imageamento digital e a realização de ensaios petrofísicos por pesquisadores de universidades e centros de pesquisa brasileiros que atuem nas áreas de caracterização de reservatório. A proposta deste trabalho consiste na elaboração de um Modelo Sólido Digital, envolvendo técnicas de imageamento digital 3D das superfícies interna e externa do T-Block. Para o imageamento das superfícies externas, foi utilizada a tecnologia Light Detection and Range (LIDAR), enquanto que para o imageamento das superfícies internas foi utilizado o Ground Penetrating Radar (GPR). Além disso, foram adquiridos perfis de raios gama com um gamaespectrômetro portátil. O uso da tecnologia Light Detection and Range associada ao Ground Penetrating Radar possibilitou a identificação e mapeamento 3D de três radarfácies distintas, as quais foram correlacionadas a três fácies sedimentares identificadas: "Radarfácies Travertino em Domos", "Radarfácies Travertino Transicional" e "Radarfácies Travertino Laminado". Os perfis de raios gama mostraram uma baixa variação na amplitude dos valores de radioatividade, provavelmente, em razão de as camadas sedimentares perfiladas apresentarem a mesma composição mineralógica (carbonática), sem argila siliciclástica e/ou minerais radioativos, nas camadas mais pelíticas.Palavras-chave: Modelo Sólido Digital; Travertino; GPR; Laser Scanner terrestre. AbstractMethodological procedures adopted in the digital imagery process, in a non-conventional scale, of a block of travertine rock from the quaternary age were presented on this paper. The rock, named T-Block, weighting 21.2 ton and measuring 1.60 x 1.60 x 2.70 m, was stored in the courtyard of the Laboratório Experimental de Petróleo "Kelsen Valente" (LabPetro) at the Universidade Estadual de Campinas (UNICAMP). Petrobras, the Brazilian Petroleum Company, had sponsored its shipment from Italy to Brazil in order to perform geological studies and petrophysical essays, mainly by research groups from universities and research centers of Brazil that work in the areas of reservoir characterization and 3D digital imaging. The purpose of this work was to develop a Digital Solid Model involving 3D digital imaging techniques of internal and external surfaces of the T-Block. Light Detection and Range technology and Ground Penetrating Radar were used to capture the imaging of the external and internal surfaces, respectively. Additionally, gamma ray profiles were generated by using a portable gamma-spectrometer. The use of Light Detection and Range technology c...

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The development of fluvial stochastic modelling in the Norwegian oil industry: A historical review, subsurface implementation and future directions

Cited by 58 publications

References 33 publications

Predictability of properties of a fractured geothermal reservoir: the opportunities and limitations of an outcrop analogue study

Predictability of properties of a fractured geothermal reservoir: the opportunities and limitations of an outcrop analogue study

The application of outcrop analogues in geological modelling: a review, present status and future outlook

Imageamento digital e modelagem virtual 3D de um bloco de rocha travertina

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