... significant amounts of gas but a better strategy for production must be developed to tap this large resource. well logging log analysis Reservoir Characterization complex reservoir water saturation Upstream Oil & Gas laminae hydraulic fracturing natural fracture shale gas Siltstone...

... maps are constructed within micro and nano-scale scale media using a quasi-static technique. The distribution profile of the non-wetting phase is then extracted to predict the effective permeability and analyze the effect of water saturation. To investigate the effect of gas slippage on the accuracy...

... testing flow in porous media isotherm complex reservoir Fluid Dynamics water saturation coal bed methane coal seam gas Upstream Oil & Gas calculation reservoir pressure composition boundary-dominated flow pseudotime production data Material Balance Equation pressure transient analysis...

... completed according to historical stimulation practices and two (2) wells completed with microemulsion additive. See Table 1 for baseline data. The damage mechanisms from past practices were exacerbated by depleted/ low bottom-hole pressures, high water saturations, and low bubble point crude. The use...

... permeability of the model rock. Abstract In tight gas sandstone the productivity of a well is sometimes quite different from that of a nearby well. Several mechanisms for this observation have been advanced. Of interest in this paper is the possibility that a small change in water saturation can change...

... rock heterogeneity permeability core permeability heterogeneity sandstone well 8 formation damage upstream oil & gas canada effective permeability fluid dynamics flow in porous media arithmetic basal colorado sandstone water saturation welltest permeability gas permeability...

... permeability drillstem/well testing capillary pressure core sample equation relative permeability relative permeability water saturation fracture storativity spe 71088 drillstem testing tiab spe 71088 reservoir characterization assumption fracture permeability Background The exploitation...

... Abstract Low permeability gas reservoirs often exhibit high resistivity and low initial water saturations. Reservoirs of this type may also be susceptible to problems associated with the retention of water or hydrocarbon based drilling and completion fluids, as well as the accumulation...

... decrease in "irreducible" water saturation ( S iw ) with increasing k i . However, lithologic variations that are related primarily to grain size and shaliness cause variance in S iw at any given permeability. Both eastern and western low-permeability sandstones exhibit sharp decrease in gas relative...

... of diagnostic and remedial treatment options are presented. water saturation flow in porous media permeability productivity gas reservoir illustration damage mechanism formation damage process upstream oil & gas matrix reservoir spe 60325 saturation low permeability gas reservoir...

... Abstract Well logs and cores are used to define formation thickness, porosity, and water saturation. These data are required to design well completions and to prepare workover and reservoir management plans. The presence of shale (clay) in the pay zone complicates log interpretation. This paper...

... drainage area ogip reservoir pressure equation upstream oil & gas production data drillstem testing average reservoir pressure reservoir simulation water saturation complex reservoir production monitoring production control initial reservoir pressure reservoir surveillance straight line...

... to quantify these values, a petrophysical analysis was performed. Open-hole well logs, sidewall cores, and specialized logs such as Combinable Magnetic Resonance (CMR) and Formation Multi Imager (FMI) were used to compute parameters such as effective porosity, water saturation and permeability...

... dynamics field experiment economics flow in porous media spe 39918 predictive model hydraulic fracturing correlation mesaverde formation water saturation treatment size piceance basin production history completion economics permeability application geology production monitoring complex...

... in porous media lance stimulation porosity water saturation formation damage concentration reservoir quality reservoir brine smectite upstream oil & gas stimulation channel sandstone permeability geology drillstem/well testing mineral geologist drillstem testing drilling fluids...

... cationic polymer sussex water breakthrough reservoir koh projection water saturation permeability enhanced recovery injection well saturation oil recovery upstream oil & gas water injection infectivity clastic rock phyllosilicate sussex unit fluid dynamics mineral sandstone...

... difficult datasets and to provide a starting point for more sophisticated history-matching methods. The final portion of this paper will include recommendations for field data collection and database utilization. P. 231 permeability holditch water saturation production control upstream oil...

... was performed. Two different pay cases were calculated, generating average effective porosity, permeability, and water saturations for each stratigraphic zone. Also the net feet of hydrocarbon pay volume [h* *(1-Sw)] was calculated for each zone in each well. These pay parameters were then compared...

... estimation rocky mountain area flow in porous media well logging compressional tectonics porosity estimation porosity & fluid saturation permeability estimate log analysis wyoming water saturation modern nmr fold and thrust belt county msec permeability crossplot geologist sedimentary...

.... well logging permeability saturation upstream oil & gas society of petroleum engineers separation histogram boundary water saturation boundary porosity histogram log analysis reservoir characterization geoscientist shale non-reservoir rock permeability histogram distinguish...