Extensive slug-test experiments have been performed at the Hydrogeological Experimental Site (HES) of Poitiers in France, made up of moderately fractured limestones. All data are publicly available through the "H+" database, developed within the scope of the ERO program (French Environmental Research Observatory, http://hplus.ore.fr). Slug-test responses with high-frequency (> 0.12 Hz) oscillat...

Abstract During an oil and gas well drilling the fluids are pumped through drill string to cool lubricate bit. This also serves purpose of bringing rock cutting back surface various other purposes like pressure control maintain bore stability. As is drilled casing lowed from caving in. results in a situation where there annular flow fluid inner pipe rotating while outer stationary. The understa...

The purpose of the software development presented in article is to obtain detailed information about surface walls wells necessary for more efficient and safe drilling casing wellbore. developed automated system “LogPWin” allows obtaining a clear idea mine itself, as well reducing time spent on processing analyzing model obtained during logging process. A product result work provides visualizat...

With the increasing concern of greenhouse gases emitted from oil and gas wells, wellbore leakage has been a topic interest lately. Previous research shown that annular cement used to complete well is primary barrier fluid migration can experience debonding casing causing microannulus. The microannulus propagate up sheath top depth continuous pathway. methods quantify corresponding using laminar...

Cropping trials were carried out with mushroom compost supplemented at casing and at spawning. Protein-rich organic substrates, some of which were formaldehydeand/or heat-treated, were used as supplements. Mushroom production could be increased significantly, both by supplementation at spawning and supplementation at casing. Results were compared to production figures obtained by using the comm...

The production of the button mushroom Agaricus bisporus with mycelium-colonized alginate pellets as an inoculant of the growing medium was investigated. Pellets having an irregular surface and porous internal structure were prepared by complexing a mixture of 1% sodium alginate, 2 to 6% vermiculite, 2% hygramer, and various concentrations of Nutrisoy (soy protein) with calcium chloride. The por...

casing material or soil (casing) is used in mushroom (agaricus bisporus) culture to cover a nutritional composted substrate colonised with mycelium, and has an essential function in stimulating and promoting the development of sporophores (fruit bodies). in order to use the agricultural by products (different wastes) to reduce peat consumption of casing soil in button mushroom production, an ex...

This paper deals with new concept of compressed air energy storage system using atmospheric air at ambient temperature as a zero pollution power source for running motorbikes. The proposed motorbike is equipped with an air turbine in place of an internal combustion engine, and transforms the energy of the compressed air into shaft work. The mathematical modeling and performance evaluation of su...