The poor rock quality and matrix permeability several orders of magnitude lower than conventional oil reservoirs observed in unconventional liquid reservoirs (ULR) presents many uncertainties on the storage capacity of the rock and the possibility of enhancing recovery. The technological advances in multiple stage hydraulic fracturing and horizontal drilling have improved the overall profitabil...

“Coal measure gas,” excluding tight (low-permeability) sandstone gas, refers in this study to the self-sourcing unconventional natural gas stored coal, shale, and fine siltstone. It is characterized by various types of occurrences reservoirs, a distinct cyclic succession coal strata, widely distributed mosaic hydrocarbon accumulations, three configurations vertically multiple-stacked gas-bearin...

A novel computationally highly e cient realization of sharp symmetrical bandstop FIR lter is proposed. The new structure is derived using the frequency-response-masking technique, where the bandedge-shaping lter is derived from half-band lter by substituting each delay of the half-band lter by M delays. The masking lters are unconventional. They are quadrature lters derived from linear combinat...

With growing global demand for hydrocarbons and decreasing conventional reserves, the gas industry is shifting its focus in direction of unconventional reservoirs. Tight reservoirs have typically been deemed uneconomical due to their low permeability which understood be below 0.1mD, requiring advanced drilling techniques stimulation enhance hydrocarbons. However, first step determining economic...

Spontaneous imbibition is a phenomenon of fluid displacement under the action capillary force, which great significance to reservoir protection, enhanced oil recovery, flow-back optimization, and fracturing selection in unconventional gas reservoirs. Remarkable progress has been made research gas, overall situation needs be analyzed more systematically. This paper aims provide scientometric rev...

Mediterranean Sea considered as a main hydrocarbon province in Egypt huge reservoirs have been discovered till now. Port Fouad marine is gas and condensate field located Eastern about 30 KM off Egyptian coast, water depth of m. The Concession operated by PETROBEL on behalf Petrosaid (Port Said Petroleum Company). was put production April 1996, from the Miocene turbidities sands Wakar Formation ...

Abstract As an important unconventional resource, shale gas can alleviate energy shortage, and its efficient development ensures the long-term growth of oil gas. The prediction production levels estimated ultimate recovery with high accuracy is necessary for development. Conventional methods are widely applied in industry owing to their simplicity effectiveness; however, none them accurately pr...