In coupled flow and poromechanics phenomena representing hydrocarbon production or CO2 sequestration in deep subsurface reservoirs, the spatial domain in which fluid flow occurs is usually much smaller than the spatial domain over which significant deformation occurs. The typical approach is to either impose an overburden pressure directly on the reservoir thus treating it as a coupled problem ...

[Containment Confidence (CC) analysis of the seal and overburden, applied to northern Utsira Fm. (a) Workflow followed provide a regional CC summary. (b) Schematic scenarios ond overburden bypass that could result in migration out through overburden. (c) Well data tied seismic showing typical response sandstone mudstone interfaces. URU, Upper Regional Unconformity; sandst., sandstone; int., int...

SUMMARY Geophysicists have widely used least-squares reverse-time migration (LSRTM) to obtain high-resolution images of the subsurface. However, LSRTM is computationally expensive and it can suffer from multiple reflections. Recently, a target-oriented approach has been proposed, which focuses wavefield above target interest. Remarkably, this be helpful for imaging below complex overburdens sub...

Since the weight of overburden is sustained by both the backfill body and the unmined solid coal in coal mining with compacted backfilling (CMCB) panels, the stress and deformation characteristics of the surrounding rocks in coal mining are radically changed. The overburden movement control mechanism by coordinating with backfill body and shield in CMCB was studied systematically in this paper....

Increasing population growth worldwide is putting increasing pressure on water resources. In arid and semi area pressure goes to groundwater. Keeping in view havoc capability of remote sensing and GIS, a study for the integrated groundwater development has been under taken in part of Lalitpur district, Uttar Pradesh. The Satellite data of IRS -IC and ID have been used to prepare the hydrogeomor...

[1] Six different geophysical investigations, (1) ground-penetrating radar, (2) DC resistivity sounding, (3) seismic refraction, (4) very low frequency (VHF) electromagnetic, (5) helicopter borne electromagnetic (HEM), and (6) transient electromagnetic (TEM) techniques, were employed to obtain information on the ice body properties of pingos near Fairbanks, Alaska. The surface nuclear magnetic ...