成熟领域

三向耦合模型评估枯竭油藏中的二氧化碳封存

本文的作者描述了一种三向耦合建模方法,该方法集成了动力学、地球化学和地质力学模型,以获得所有三种变化的累积效应,以评估未来的二氧化碳储存。

显示碳酸盐岩顶部的深度图。
图1'显示了碳酸盐岩顶部的深度图。

马来西亚沙捞越州近海 Central Luconia 气田的三个主要枯竭气藏正在接受未来二氧化碳 (CO 2 ) 封存的评估。采用集成动力、地球化学和地质力学模型的三向耦合建模方法来获得所有三种变化的累积效应。该集成模型提供了对CO 2存储容量、盖层完整性评估、CO 2羽流迁移路径以及通过不同机制存储的CO 2体积的更准确的估计

背景

正在评估的CO 2封存地点是已经生产了几十年的枯竭气藏。在其生产寿命结束时,它们有可能转变为CO 2储存场所。

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Mature fields

Three-Way Coupled Modeling Evaluates CO2 Sequestration in Depleted Reservoir

The authors of this paper describe a three-way coupled modeling approach that integrates dynamic, geochemistry, and geomechanics models to obtain cumulative effects of all three changes to evaluate future carbon dioxide storage.

Depth map showing the top of the carbonate.
Fig. 1—Depth map showing the top of the carbonate.

Three major depleted gas reservoirs in the Central Luconia field offshore Sarawak, Malaysia, are being evaluated for future carbon-dioxide (CO2) storage. A three-way coupled modeling approach that integrates dynamic, geochemistry, and geomechanics models is used to obtain the cumulative effect of all three changes. This integrated model provides a more-accurate estimate of CO2 storage capacity, caprock-integrity evaluation, CO2-plume migration path, and volume of CO2 stored through different mechanisms.

Background

The CO2 storage sites being evaluated are depleted gas reservoirs that have been in production for a few decades. At the end of their producing life, they have the potential to be converted into CO2 storage sites.

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