Abstract Horizontal well is an important way to develop thin reservoir with edge-bottom water aquifer. For the horizontal near oil–water contact, have features of edge and bottom at same time. The productivity formula in pure or not fully applicable this type reservoir. heterogeneous composite aquifer, divided into multiple sections by using concept multi-segment well. Based on seepage mechanic...

The reservoir water level in the Three Gorges Reservoir (TGR) of Yangtze River is adjusted between 145 m and 175 throughout year. landslide below bears periodic dynamic seepage pressure on basis original steady-state pressure. In process rising levels particular, effective stress sliding zone soil line reduced, shows an unloading state. order to study creep characteristics landslides a area, di...

Based on the results of previous research fracture systems reservoirs middle- and low-rank coal, we took high-rank coal in southern Qinshui Basin as study object this paper summarize characteristics both macro- micro-fractures different rank coals, establish a geometric model network for explore mechanism reservoir permeability change under conditions. The found that structure developed unevenl...

Maisiagala RADON type radioactive waste storage facility was commissioned in 1963 in a marshy, ecologically sensitive locality, where soluble radionuclides easily can penetrate and migrate with groundwater. To assure the requirements of radiation safety, the analysis of radionuclide leakage from the radioactive waste storage facility is performed continuously. H (tritium, T1/2=12.33 years) is o...

In the present study, analytical solutions are obtained for two-dimensional advection dispersion equation for conservative solute transport in a semi-infinite heterogeneous porous medium with pulse type input point source of uniform nature. The change in dispersion parameter due to heterogeneity is considered as linear multiple of spatially dependent function and seepage velocity whereas seepag...

foam injection is widely applied in amounts of fields to drilling, production, and formation protection. sometimes, the application result is disappointing, which is caused by the failure of bubble generation in foam flooding. therefore, it is necessary to seek ways for improving the performance of foam injection. an increased disturbance to the stratum, like the vibration caused by a seismic o...

Fractured seepage is an important factor affecting the interface stability of rock mass. It is closely related to fracture properties and hydraulic conditions. In this study, the law of seepage in a single fracture surface based on modified cubic law is described, and the three-dimensional discrete element method is used to simulate the dam foundation structure of the Capulin San Pablo (Costa R...

Seepage zones have been shown to be of critical importance in controlling contaminant export from agricultural watersheds. To date, no multipurpose agricultural water quality model has seepage zones incorporated into its process-level representations. We chose to test two widely used models of agricultural water quality, the Groundwater Loading Effects of Agricultural Management Systems (GLEAMS...

The seepage velocity and temperature externally manifest the changing structure, gas desorption and energy release that occurs in coal containing gas failure under loading. By using the system of coal containing gas failure under loading, this paper studies the law of seepage velocity and temperature under different loading rates and at 1.0 MPa confining pressure and 0.5 MPa gas pressure, and c...