... and proper reuse of water on subsequent hydraulic fracturing. fracturing materials Upstream Oil & Gas water quality identification optimal proppant scale control sensitivity friction reducer fracturing fluid concentration water source Robinson hydraulic fracturing chemistry...

..., a new index called ration of dispersion coefficient is introduced to evaluate the sensitivity of each factor. The sensitivity decreases as the sequence of cutting particle size, drilling fluid flow behavior index, acceptable cutting bed height, wellbore diameter, ROP(8-15 m/h), drilling fluid density...

...-based ceramic proppants and sand proppants show a significant increase in crush with an increase in number of cycles. Clay based samples appear to be especially sensitive to stress cycling under thin layer/monolayer conditions. For example, 3 cycles at 0.5 lb/ft 2 loading, the crush resistance of clay...

... to the instrument sensitivity, limitation, measurement error, environmental effect, sample interval, location, the representative of sample, and Mother Nature of these properties, there is always uncertainty. In this research, a systematic study on the effects of fluid and rock properties on reserves estimation had...

... sensitivity slickwater upstream oil & gas fresh water Introduction The study of the effects of clay protection chemistries on shales in laboratory tests encompassed the scope of this work. Eight shale formations were evaluated for this project. By evaluating the properties and characteristics...

... coal as well as the injection of gases, such as carbon dioxide, for sequestration in coal. Sensitivity analysis of the model found that each of the input variables can have a significant impact on the outcome of the permeability forecast as a function of changing pore pressure; thus, accurate input...

... are discussed, results of simulation studies validating the method are presented and actual examples from Fruitland Coal wells in the San Juan Basin are used to test the applicability of the method to real world conditions. drillstem testing reservoir simulation reservoir surveillance sensitivity...

... in both air- and liquid-filled boreholes. Obtaining thermal neutron porosity measurement in air-filled boreholes is impractical because of poor porosity sensitivity and the combined effects of borehole size and thermal neutron absorption. In contrast, the epithermal ratio possesses good sensitivity...

... applications to date. By examining the potential of eight reservoirs from the four largest oil producing Appalachian states, the paper concludes that the three EOR methods most amenable are carbon dioxide, surfactant flooding, and steam drive. enhanced recovery exploration co 2 sensitivity reservoir...

... parts. Should be field be repairable. The valve should permit testing when desirable to do so. gas storage Upstream Oil & Gas diaphragm protection Reservoir Surveillance sensitivity Subsurface Safety Valve hanger mandrel assembly production control natural gas storage...