Geostatistical 3D geological model construction to estimate the capacity of commercial scale injection and storage of CO2 in Jacksonburg-Stringtown oil field, West Virginia, USA

In geological settings characterised by folded and faulted strata, and where good field data exist, we have been able to automate a large part of the 3D modelling process directly from the raw geological database (maps, bedding orientations and drillhole data). The automation is based upon the deconstruction of the geological maps and databases into positional, gradient and spatial and temporal topology information, and the combination of deconstructed data into augmented inputs for 3D geological modelling systems, notably LoopStructural and GemPy.When we try to apply this approach to more complex terranes, such as greenstone belts, we come across two types of problem:<ul><li>1) Insufficient structural data, since the more complexly deformed the geology, the more we need to rely on secondary structural information, such as fold axial traces and vergence to &#8216;solve&#8217; the structures. Unfortunately these types of data are not always stored in national geological databases. One approach to overcoming this is to analyse the simpler (i.e. bedding) data to try and estimate the secondary information automatically.</li> </ul>&#160;<ul><li>2) The available information is unsuited to the logic of the modelling system. Most modern modelling platforms assume the knowledge of a chronostratigraphic hierarchy, however, especially in more complexly deformed regions, a lithostratigraphy may be all that is available. Again a pre-processing of the map and stratigraphic information may be possible to overcome this problem.</li> </ul>This presentation will highlight the progress that has been made, as well as the road-blocks to universal automated 3D geological model construction.&#160;We acknowledge the support of the MinEx CRC and the Loop: Enabling Stochastic 3D Geological Modelling (LP170100985) consortia. The work has been supported by the Mineral Exploration Cooperative Research Centre whose activities are funded by the Australian Government's Cooperative Research Centre Programme. This is MinEx CRC Document 2020/xxx.&#160;

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3D geological modeling of the Upper Cretaceous reservoirs in GPT oil field, Abu Sennan area, Western Desert, Egypt

Journal of Petroleum Exploration and Production Technology ◽

10.1007/s13202-019-00780-9 ◽

2019 ◽

Vol 10 (2) ◽

pp. 371-393

Author(s):

Mohamed F. Abu-Hashish ◽

Hamdalla A. Wanas ◽

Emad Madian

Keyword(s):

Seismic Data ◽

Upper Cretaceous ◽

Structural Model ◽

Oil Field ◽

Western Desert ◽

Geological Model ◽

3D Geological Modeling ◽

Petrophysical Analysis ◽

3D Geological Model ◽

Property Modeling

Abstract This study aims to construct 3D geological model using the integration of seismic data with well log data for reservoir characterization and development of the hydrocarbon potentialities of the Upper Cretaceous reservoirs of GPT oil field. 2D seismic data were used to construct the input interpreted horizon grids and fault polygons. The horizon which cut across the wells was used to perform a comprehensive petrophysical analysis. Structural and property modeling was distributed within the constructed 3D grid using different algorithms. The workflow of the 3D geological model comprises mainly the structural and property modeling. The structural model includes fault framework, pillar girding, skeleton girding, horizon modeling and zonation and layering modeling processes. It shows system of different oriented major and minor faults trending in NE–SW direction. The property modeling process was performed to populate the reservoir facies and petrophysical properties (volume of shale (Vsh), fluid saturations (Sw and Sh), total and effective porosities (Φt and Φe), net to gross thickness and permeability) as extracted from the available petrophysical analysis of wells inside the structural model. The model represents a detailed zonation and layering configuration for the Khoman, Abu Roash and Bahariya formations. The 3D geological model helps in the field development and evaluates the hydrocarbon potentialities and optimizes production of the study area. It can be also used to predict reservoir shape and size, lateral continuity and degree of interconnectivity of the reservoir, as well as its internal heterogeneity.

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Assessing the Geothermal Resource Potential of an Active Oil Field by Integrating a 3D Geological Model With the Hydro-Thermal Coupled Simulation

Frontiers in Earth Science ◽

10.3389/feart.2021.787057 ◽

2022 ◽

Vol 9 ◽

Author(s):

Yonghui Huang ◽

Yuanzhi Cheng ◽

Lu Ren ◽

Fei Tian ◽

Sheng Pan ◽

...

Keyword(s):

Numerical Model ◽

Oil Field ◽

Natural State ◽

Geological Model ◽

Geothermal Resource ◽

Geothermal Resources ◽

New Town ◽

3D Geological Model ◽

Coupled Numerical Model ◽

Geothermal Potential

Assessment of available geothermal resources in the deep oil field is important to the synergy exploitation of oil and geothermal resources. A revised volumetric approach is proposed in this work for evaluating deep geothermal potential in an active oil field by integrating a 3D geological model into a hydrothermal (HT)-coupled numerical model. Based on the analysis of the geological data and geothermal conditions, a 3D geological model is established with respect to the study area, which is discretized into grids or elements represented in the geological model. An HT-coupled numerical model was applied based on the static geological model to approximate the natural-state model of the geothermal reservoir, where the thermal distribution information can be extracted. Then the geothermal resource in each small grid element is calculated using a volumetric method, and the overall geothermal resource of the reservoirs can be obtained by making an integration over each element of the geological model. A further parametric study is carried out to investigate the influence of oil and gas saturations on the overall heat resources. The 3D geological model can provide detailed information on the reservoir volume, while the HT natural-state numerical model addressed the temperature distribution in the reservoir by taking into account complex geological structures and contrast heterogeneity. Therefore, integrating the 3D geological modeling and HT numerical model into the geothermal resource assessment improved its accuracy and helped to identify the distribution map of the available geothermal resources, which indicate optimal locations for further development and utilization of the geothermal resources. The Caofeidian new town Jidong oil field serves as an example to depict the calculation workflow. The simulation results demonstrate in the Caofeidian new town geothermal reservoir that the total amount of geothermal resources, using the proposed calculation method, is found to be 1.23e+18 J, and the total geothermal fluid volume is 8.97e+8 m3. Moreover, this approach clearly identifies the regions with the highest potential for geothermal resources. We believe this approach provides an alternative method for geothermal potential assessment in oil fields, which can be also applied globally.

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A 3D Geological Model Construction Approach Based on Virtual Boreholes

Geo-information Science ◽

10.3724/sp.j.1047.2013.00672 ◽

2013 ◽

Vol 15 (5) ◽

pp. 672 ◽

Cited By ~ 1

Author(s):

Bingxian LIN ◽

Liangchen ZHOU ◽

Guonian LV

Keyword(s):

Model Construction ◽

Geological Model ◽

3D Geological Model

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MACHINE LEARNING METHODS FOR 3D GEOLOGICAL MODEL CONSTRUCTION

10.1130/abs/2020am-355922 ◽

2020 ◽

Author(s):

Michael Hillier ◽

◽

Florian Wellmann ◽

Boyan Brodaric ◽

Eric de Kemp ◽

...

Keyword(s):

Machine Learning ◽

Model Construction ◽

Geological Model ◽

Learning Methods ◽

Machine Learning Methods ◽

3D Geological Model

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CONSTRUCTION OF THE DIRECTIONAL WATER-OIL CONTACT OF THE BED JV1(1) OF THE FIELD TIVANSKOYE

Oil and Gas Studies ◽

10.31660/0445-0108-2015-2-74-79 ◽

2015 ◽

pp. 74-79

Author(s):

I. A. Schetinin ◽

I. N. Maksimyuk

Keyword(s):

Contact Surface ◽

Main Part ◽

Practical Experience ◽

Oil Field ◽

Type Structure ◽

Model Construction ◽

Block Type ◽

Geological Model ◽

Water Saturated ◽

Field Area

The article is based on the practical experience of the Tivanskoye oil field geological model construction. The main part of the article is dedicated to the problem of creation of the WOC (water saturated contact) surface taking into account a significant gradient of the WOC’s depth marks over the field area. The possibility of a block-type structure of the deposit and a plicated type is considered as the most probable hypotheses. As a result a comparison is made of the forecast on the absolute depth mark of the WOC for each of the models and the actual information is presented on the results of pilot wells drilling.

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