the rapid growth in natural gas consumption has increased the need for gas storage, in particular in the form of injection into depleted reservoirs. also, co2 sequestration into the depleted reservoirs has attracted a large attention recently. however, it is important to ensure that the injection pressure is maintained below a certain limit to avoid unsealing the cap rock or reactivation of any...

Image logs of 13 wells in the Rag Sefid Anticline show two systems of fractures developed under two deformation phase in the Dezful Embayment. This deformation phases are folding resulted from Zagros NE contraction and reactivation of the basement fault rotated the fold axial trace within the Hendijan-Izeh fault zone. Folding phase comprises four sets of fractures, which include axial and cross...

Abstract Because of the special geographical location adjacent to Tibetan Plateau, geological setting Sichuan Basin is very complex, which brings a great challenge shale gas development. In this study, we conducted an integrated microseismic and geomechanical analysis on refracturing well in Basin. We observed that casing deformation occurred area fault reactivation. However, reactivation pre-e...

Recollection of events is accompanied by selective reactivation of cortical regions which responded to specific sensory and cognitive dimensions of the original events. This reactivation is thought to reflect the reinstatement of stored memory representations and therefore to reflect memory content, but it may also reveal processes which support both encoding and retrieval. The present study us...

Memory stability and change are considered opposite outcomes. We tested the counterintuitive notion that both depend on one process: hippocampal binding of memory features to associatively novel information, or associative novelty binding (ANB). Building on the idea that dominant memory features, or "traces," are most susceptible to modification, we hypothesized that ANB would selectively invol...

Learning and Memory 22: 203–214 (2015) Corrigendum: Cholinergic manipulations bidirectionally regulate object memory destabilization Mikaela L. Stiver, Derek L. Jacklin, Krista A. Mitchnick, Nevena Vicic, Justine Carlin, Matthew O’Hara, and Boyer D. Winters In Figures 4, 6, 9, and 10, the procedural schematic above each graph depicts a 72-h delay between sample (S) and reactivation (RA) phases....

The onshore continental margins of western Central Africa have been hosting potentially damaging earthquake events for decades; yet, the links between seismicity, contemporary stress field, and pre-existing faults are not well understood. Here, we analyze regional fields offshore along coastal margin, in interior areas using focal mechanisms, map characterize detailed structure preexisting faul...

Abstract Jiaocheng fault ground fissure is the longest extending intermittently in Fen Wei depression zone. The occurrence and development of fissures are affected by rainfall, groundwater pumping, activity, strata other factors. research shows that with rainwater flowing down replenishing confined water layer, there will be undercutting, scouring hollowing, which aggravate fissures; In structu...

Hydraulic fracturing is commonly applied in the shale gas exploitation industry. However, mechanical mechanism of permeability under has so far been unclear. In this study, an analysis laboratory experiments on hydraulic fracture propagation and bedding plane reactivation presented. To investigate microcrack occurrence fracturing, several small slices were collected from surface scanned with a ...