Dataset of the analytical solution of ground displacement in a half space for a pressurized or depleted deep reservoir intersected by a fault

Quick estimates of fluid-induced subsurface deformation are helpful to assess the land uplift/subsidence and to reveal precursors of induced seismicity. In this dataset, we present the programing codes of a closed-form solution for displacement, especially the ground displacement, induced by reservoir pressurization or depletion. The solution consider a compartmentalized reservoir crossed by a fault that can be offset and either transversely permeable or impermeable. With this solution, the programing codes display (1) the verification against the existing solutions, (2) the induced displacement in a zone of interest for both permeable and impermeable faults, (3) the ground displacement distribution under various fault and reservoir geometries, and (4) the comparison between the solution in a half space and in a full space. All the evaluated results are shown in a scaled form, which generalizes the problem and the results with respect to hydro-mechanical parameters. These codes establish a useful tool for estimating ground deformation, for gaining insights of reservoir and fault geometries by analyzing surface deformation patterns, and for managing the risk of induced seismicity.

流体诱发地下形变的快速估算，有助于评估地表抬升与沉降情况，并揭示诱发地震活动的前兆信号。本数据集提供了针对油藏加压或衰竭开采诱发位移（尤其是地表位移）的解析解编程代码。该解析解适用于被断层切割的分隔式油藏，断层可发生错动，且可设置为横向渗透或不渗透状态。依托该解析解，本编程代码可实现以下功能：（1）与现有解析解开展验证对比；（2）针对渗透型与非渗透型断层，计算目标区域内的诱发位移；（3）绘制不同断层与油藏几何形态下的地表位移分布；（4）对比半空间与全空间场景下的解析解结果。所有计算结果均以比例缩放形式呈现，可基于水力力学参数对研究问题与计算结果进行泛化推广。本套代码可为地表形变估算、通过地表形变模式反演油藏与断层几何形态，以及防控诱发地震活动风险提供实用工具。