油藏模拟

孔隙力学建模预测产量、分析生产率下降

本文描述了一种全油田和近井眼孔隙力学耦合方案，用于模拟生产力指数随时间下降的情况。

全场模型和井眼模型耦合。上图是12口井的全油田油藏模型；底部图是详细的半井模型。全场模型可以与多个井眼模型耦合。
图1'为全场模型与井筒模型耦合。上图是12口井的全油田油藏模型；底部图是详细的半井模型。全场模型可以与多个井眼模型耦合。
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生产率指数（PI）下降是由井筒区域和远场的不同机制引起的。井筒区域的损伤可以通过详细的井筒建模来模拟。整篇论文使用了新开发的全场和近井眼孔隙力学耦合方案来模拟 PI 随时间的退化。在将耦合方案应用于深水井时，可以识别近井眼损伤以及现场和井的相互作用。

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Reservoir simulation

Poromechanics Modeling Forecasts Production, Analyzes Productivity Decline

This paper describes a full-field and near-wellbore poromechanics coupling scheme used to model productivity-index degradation against time.

Full-field model and wellbore model coupling. The top plot is the full-field reservoir model with 12 wells; the bottom plot is the detailed half-well model. A full-field model can be coupled with multiple wellbore models.
Fig. 1—Full-field model and wellbore model coupling. The top plot is the full-field reservoir model with 12 wells; the bottom plot is the detailed half-well model. A full-field model can be coupled with multiple wellbore models.
 

Productivity index (PI) decline is caused by different mechanisms in both the wellbore region and the far field. Damage in the wellbore region can be simulated by detailed wellbore modeling. A newly developed full-field and near-wellbore poromechanics coupling scheme is used in the complete paper to model PI degradation against time. Near-wellbore damage and field and well interactions are identified when applying the coupling scheme for a deepwater well.

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