一种页岩气藏抬升阶段侧向封闭性评价方法和装置
By collecting initial benchmark and uplift response data, dividing geological structural units and coupling multiphysics field equations, the problem of accurate quantification of lateral sealing evaluation of shale gas reservoirs was solved, reducing exploration risks and improving exploration success rate and economy.
CN122064900BActive Publication Date: 2026-07-17CHINA UNIV OF PETROLEUM (BEIJING)
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF PETROLEUM (BEIJING)
- Filing Date
- 2025-12-15
- Publication Date
- 2026-07-17
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Figure CN122064900B_ABST
Abstract
本发明公开了一种页岩气藏抬升阶段侧向封闭性评价方法和装置，包括：采集页岩气藏的初始基准数据及各抬升阶段的抬升响应数据；将目标区划分为多个地质构造单元并网格化，在各网格中耦合多物理场耦合方程，包括应力方程、基于初始基准数据和抬升响应数据构建的物性方程及气体渗流方程；迭代求解多物理场耦合方程，经应力方程处理后输出网格有效应力和网格抬升幅度，经物性方程处理后输出网格孔隙度和网格渗透率，经气体渗流方程处理后输出气体质量通量；根据气体质量通量和网格渗透率确定各地质构造单元的最大侧向封闭距离，再计算封闭系数，评价页岩气藏各地质构造单元在抬升阶段的侧向封闭性。本发明可实现抬升阶段侧向封闭性的精准、量化评价。
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