The leakage curves in the indicator diagram of a pumping well reflect the forces born by the sucking rod in static state.
抽油机井示功仪测试的上、下漏失曲线反映了抽油杆在静止状态下的受力。
2
The variation of groundwater levels could reflect the watertight effect of the retaining structures, which could be used as an important indicator to find out whether there is water leakage.