... and critical properties of gas condensate in shale gas reservoirs is significantly different than that of gas condensate as bulk in the PVT cell. It is highly affected by shale pore size distribution leading to changes in gas compressibility, viscosity, formation volume and original gas in place calculations...

... transfer model is used to allow conversion of WHP to bottomhole pressure (BHP) by accounting for changing fluid density and compressibility along the wellbore. This model, in turn, allowed us to assess the quality of solutions generated with the WHP data. For DFIT analysis, we adapted the modified-Hall...

... pressure transient testing diagnostic plot fracture half-length pressure transient analysis drillstem/well testing fraction 0 application wattenbarger drillstem testing compressibility psi -day conductivity upstream oil & gas unconventional reservoir reservoir pressure society...

... of fracture half-length, if permeability is known. The degree of this overestimation is influenced by initial pressure, flowing pressure and formation compressibility. An analytical method is presented to correct the slope of the square root-time plot to eliminate the overestimation of fracture half-length...

... to numerical simulation. shale gas compressibility square root-time plot production monitoring upstream oil & gas shale gas reservoir production control complex reservoir gas reservoir fracture half-length reservoir surveillance rate production wattenbarger numerical simulation new...

... CBM reservoirs have additional complexities. The gas storage mechanism as well as the compressibility of CBM reservoirs is dominated by adsorption. These and other CBM-specific characteristics have to be accounted for in any material balance calculations. Mattar and McNeil (1998) presented...

... from 3.8 to 6.6 Tscf. We attempted to history match each of these nine models by using an optimization routine to adjust aquifer support, vertical transmissibility across a potential seal, and rock compressibility. The optimization routine proved to be a very useful and efficient tool to attain good...

... data analysis of coal reservoirs only if appropriate reservoir inputs (i.e. desorption compressibility, fracture porosity) are used in the analysis. As the field examples demonstrate, type-curve and pressure-transient analysis methods for production data analysis are not used in isolation for reservoir...

... that is completely rigorous. This study presents a new, rigorous MBE for gas flow in the presence of a compressible formation and residual fluid saturation. Examples will be presented to highlight the capabilities of the new MBE. reservoir simulation resource in place estimate compressibility fraction 0...

... The effects of fracture and matrix compressibilities are included in this study. The optimum is to determine these compressibilities in the laboratory using cores from the reservoir under study. If these are not available, we have to resort to empirical correlations. For example, we can use...

... 75511 bulk modulus algorithm compressional velocity coalbed methane production uniaxial compaction poisson flow model subsidence reservoir characterization compressibility petrophysical algorithm upstream oil & gas coal seam gas geomechanical property reservoir simulation fanchi...

... step gas-condensate reservoir reservoir production monitoring society complex reservoir production control material balance intercept reservoir surveillance influx gas condensate reservoir compressibility condensate reservoir aquifer petroleum engineer Introduction Material...

... methane petroleum engineer decline behavior and drainage area compressibility society agreement exhibition reserves evaluation coal seam gas pressure transient analysis seidle spe 75519 fetkovich symposium Introduction Oil and gas well decline behavoir has been studied for over...

.... In this paper, a case study is presented to illustrate the application of the new equation for decline curve analysis in a gas reservoir. production monitoring gas reservoir flow rate exp reservoir surveillance drillstem testing upstream oil & gas compressibility type curve production control...

... pressure, bottomhole flowing pressure, and fluid properties. These data are that required in a typical decline-curve analysis (i.e., no extra data is required). A field example is presented to verify the developed concept and to demonstrate the utility. reserves evaluation compressibility...

... upstream oil & gas reservoir pressure future dimensionless ipr curve drillstem testing pseudosteady-state flow well performance effect permeability ipr curve compressibility base case spe 59759 houpeurt equation unfractured gas well billiter dimensionless inflow performance relationship...

... in coalbed reservoirs. 5 - 7 The bulk fluid flow, in turn, is controlled by the cleat physical properties, specifically their orientation, spacing, compressibility, and effective porosity. 6 - 12 This paper presents results from analysis of the effects of geologic variables on the cleat...

... distribution drillstem testing simulator reservoir pressure spe 39967 reservoir compressibility upstream oil & gas steady-state assumption pressure transient analysis procedure condensate reservoir pseudopressure function drillstem/well testing permeability gas condensate reservoir pressure...

... of the effective compressibility, ĉ e . Nevertheless, our technique gets around this problem and, with availability of reliable reservoir history data, accurately predicts the reservoir performance and original gas in place, especially in single-well reservoirs such as the Cotton Valley reefs in East Texas...

... wellhead pressures while a foamed fluid is used as a overflush fluid are presented. The study indicates the flow rate in fracture is a variable during injecting and continuous flow into fracture exists after shut-in because of thermal expansion and compressibility when foamed acid is adopt in treatments...