利用 Volve 油田数据展示快速生产和水突破分析方法

Q1 Earth and Planetary Sciences
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引用次数: 0

摘要

常规油田生产时,在油田生命周期的最初几年,油井的生产率主要受生产系统的制约,而在油田生命周期的后期,生产率主要受储层可开采性的制约。在后高原生产期,储层可输送性不再可能超过生产系统的井率限制。传统的节点分析方法使用的是分析方程,该方法将油藏油井流入点的压力(流入性能关系;IPR)与同一点向上的垂直举升性能(VLP;或垂直流动性能;VFP)所需的压力进行平衡。本研究提出了一种更快、更简单的方法。经典的 IPR 解决方案是基于扩散方程的恒定井率解决方案,而使用恒定井底压力假设则可以绕过节点分析类型的压力匹配解决方案来获得井率。取而代之的是,可以根据储层的压力下降直接计算出井率,并且可以根据储层质量对理论井率施加任何生产系统能力约束。通过使用 Volve 油田(挪威大陆架)的公开数据进行详细的生产分析案例研究,解释并说明了新方法的优点。此外,Volve 油田油井案例研究还展示了一种新的水突破分析方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fast production and water-breakthrough analysis methods demonstrated using Volve Field data

When producing from conventional fields, the well rates are primarily constrained by the production-system in the early years of the field-life, while later in the field-life the production rates are primarily constrained by the reservoir deliverability. For the post-plateau production period, the reservoir deliverability will no longer potentially exceed the production-system well-rate constraints. Traditionally, analytical equations are used in a nodal analysis method that balances the pressure at the well inflow point from the reservoir (inflow performance relationship; IPR) with the pressure required for the vertical lift performance (VLP; or vertical flow performance; VFP) from the same point upward. A faster and simpler approach is proposed in the present study. Whereas, the classical IPR solutions are based on a constant well-rate solution of the diffusivity equation, use of a constant bottomhole pressure assumption can bypass the need for nodal analysis type pressure matching solutions to obtain the well rate. Instead, the well rate can be directly computed from the pressure decline in the reservoir and any production system capacity constraint can be imposed on the theoretical well rate due to the reservoir quality. The merits of the new approach are explained and illustrated by way of a detailed production analysis case study using open-access data from the Volve Field (Norwegian Continental Shelf). In addition, the case study of the Volve Field wells demonstrates a new water-breakthrough analysis method.

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来源期刊
Petroleum Research
Petroleum Research Earth and Planetary Sciences-Geology
CiteScore
7.10
自引率
0.00%
发文量
90
审稿时长
35 weeks
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