Vector-based three-dimensional (3D) well-path optimization assisted by geological modelling and borehole-log extraction

Almedallah, Mohammed K.; Mudhafar, Abdulrahman A. Al; Clark, Stuart; Walsh, Stuart

doi:10.1016/j.upstre.2021.100053

Cited by 6 publications

(1 citation statement)

References 19 publications

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“…Structural modeling is the first and most critical step in 3D geological modeling, providing the framework for facies and petrophysical modeling. The accuracy of the structural model is essential for ensuring high-quality modeling results (Wu et al, 2005;Marquer et al, 2006;Calcagno et al, 2008;Pakyuz-Charrier et al, 2018b;Zhong, 2019;Almedallah et al, 2021;Hillier et al, 2021;Lan et al, 2021). Structural modeling involves the development of both fault and surface models, with the well-to-seismic ties method employed to create the structural framework based on fine structural interpretation.…”

Section: Structural Modeling Under Well-toseismic Tiesmentioning

confidence: 99%

3D geological modeling of deep fractured low porosity sandstone gas reservoir in the Kuqa Depression, Tarim Basin

et al. 2023

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The fractured reservoir is one of the significant petroleum reservoir types in China, representing over one-third of total reserves. The Kuqa Depression in the Tarim Basin is dominated by fractured low-porosity sandstone gas reservoirs with characteristic tight matrix, developed fractures, and edge and bottom water. However, the continued development of these reservoirs has led to various problems, including strong reservoir heterogeneity, low well control, complex gas-water relationships, and early water invasion. Addressing these issues requires a detailed understanding of the reservoir’s geological characteristics. One method for achieving a fine reservoir description is through the use of 3D geological modeling. This high-level, comprehensive characterization technique is widely used throughout the entire life cycle of oil and gas field development. A 3D geological model can accurately predict the actual underground reservoir characteristics and provide a geological basis for later numerical simulation work. Based on a study of the geological characteristics of the Kuqa Depression in the Tarim Basin, a 3D geological modeling technique was developed, which includes structural modeling, facies modeling, petrophysical modeling, and fracture modeling. This technology has been successfully applied to many deep gas reservoirs in the Kuqa Depression of the Tarim Basin, leading to enhanced gas recovery.

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Section: Structural Modeling Under Well-toseismic Tiesmentioning

confidence: 99%

3D geological modeling of deep fractured low porosity sandstone gas reservoir in the Kuqa Depression, Tarim Basin

et al. 2023

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Optimal path planning for directional wells across flow units’ many-targets

Fernandes,

Coutinho,

Silva

et al. 2023

J Petrol Explor Prod Technol

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Over the past decades, directional drilling has continuously advanced to increase hydrocarbon recovery by effectively targeting high-productivity reservoirs. However, many existing approaches primarily focus on heuristic optimization algorithms. Moreover, existing models often neglect the incorporation of petrophysical attributes that can significantly impact the selection of production targets, such as the reservoir quality indicator. This article introduces a novel application of mixed-integer programming to define directional drilling paths, considering practical aspects of interest. The paths are subject to drift angle constraints and reference coordinates that align with the optimal reservoir targets. Such targets are identified using the authors’ proposed technique of maximum closeness centrality and the geologic model of hydraulic flow units. In order to evaluate the effectiveness of this approach, a realistic model of the Campos Basin in Brazil is studied. The results reveal that the highest recovery factors obtained with the proposed methodology (17%) exceed the historical average recovery factor of the studied reservoir (15.66%). We believe this study can contribute to the ongoing efforts to enhance directional drilling and maximize the production potential of offshore oil and gas reservoirs.

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Directional wellbore trajectory optimization incorporating cubic Bezier curves and collision-avoidance constraints

Wood

2024

Sustainable Natural Gas Drilling

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Vector-based three-dimensional (3D) well-path optimization assisted by geological modelling and borehole-log extraction

Cited by 6 publications

References 19 publications

3D geological modeling of deep fractured low porosity sandstone gas reservoir in the Kuqa Depression, Tarim Basin

3D geological modeling of deep fractured low porosity sandstone gas reservoir in the Kuqa Depression, Tarim Basin

Optimal path planning for directional wells across flow units’ many-targets

Directional wellbore trajectory optimization incorporating cubic Bezier curves and collision-avoidance constraints

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