[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...

Abstract Resistivity survey was carried out in Enugu North, Southeastern Nigeria, order to evaluate the groundwater condition of area. The inadequacy surface water, proper knowledge aquifer and increasing population has affected extraction development Resistivity, thickness, depth, curve frequencies protection level were determined. result revealed a total 5–6 geoelectric layers with model curv...

To investigate the drainage conditions that might be expected to develop beneath soft-bedded ice sheets, we modeled the subglacial hydrology of the James Lobe of the Laurentide Ice Sheet from Hudson Bay to the Missouri River. Simulations suggest the James Lobe had little effect on regional groundwater flow because the poorly conductive Upper-Cretaceous shale that occupies the upper layer of the...

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...