Combustion-tube tests were conducted on a tar of physical and chemical characteristics similar to a natural reservoir tar. Ottawa sand of 20-30 mesh size was used to prepare tar-sand mixtures of about 37% porosity, 19 to 25% water saturation and 21 to 32% tar saturation. In runs with distilled water, a combustion front was successfully initiated and moved into the sand pack. Later, however, the...

New analysis of the baseline (pre-injection) seismic data at Sleipner has revealed large-scale, roughly north-trending, channelled ‘fairways’ a range stratigraphical levels in Utsira Sand. The also reveal localised ‘point discontinuities’ within reservoir, some which show evidence having provided vertical conduits for earlier natural gas flow. repeat time-lapse datasets, where finer details res...

BACKGROUND Phlebotomus perniciosus is the main vector in the western Mediterranean area of the protozoan parasite Leishmania infantum, the causative agent of canine and human visceral leishmaniases. Infected dogs serve as a reservoir of the disease, and therefore measuring the exposure of dogs to sand fly bites is important for estimating the risk of L. infantum transmission. In bitten hosts, s...

The evaluation of rock mechanic characteristics shale reservoir is the key for success fracturing. Several limitations such as complex lithology can affect accuracy property computation. In this research, mechanical properties reservoirs were analyzed based on experimental tests including shale-reservoir mineral composition, uniaxial compressive strength, and triaxial compression tests. results...

C oilfield is a heavy oil field developed by horizontal wells and single sand body in Bohai oilfield. The edge bottom water of the reservoir active natural energy development mode adopted. comprehensive cut was 95.3%, which had entered stage high production. Some reservoirs were limited crude viscosity column height. Under condition existing well pattern, some reserves not produced or degree pr...

Managing sediments dredged from reservoirs of recharge dams is an environmental issue, however, these can be abundant and economical source fine-grained fill soil. This experimental investigation quantifies the geotechnical properties a reservoir sediment used to improve engineering poorly graded dune sand in Oman. The binary mixes were prepared with different percentages (5, 10, 20, 50, 75, 90...

The beach-bar sand reservoir of the Sha 4 Member Shahejie Formation in Dongying Sag is main oil-bearing formation this area. In recent years, its proven reserves have been getting lower and lower, poor petrophysical properties made water injection development difficult. turn, it results a rapid decline elastic productivity low oil recovery. study, experimental evaluation numerical simulation re...

The upstream effects of reservoirs on stream fish assemblages were highly localized in 3rdthrough 5thorder streams in the Great Plains, USA. Streams that differed in connectivity to reservoirs were sampled at their confluences with a river or reservoir and between the confluence and the stream’s origin. Sites at confluences had higher total, nonnative, and reservoir species richness than middle...