..., and the relationship to the reservoir theory. Modeling & Simulation production forecasting reserves evaluation Reserve Estimation Upstream Oil & Gas gas well eur prediction complex reservoir shale gas reservoir prediction Arp shale gas gas reservoir Exhibition production data spe annual...

... techniques such as the Dynamic Material Balance (DMB) method. The application of such methods to volumetric gas reservoirs and naturally fractured reservoirs resulted in accurate and reliable estimations. However, for water drive gas reservoirs, where the water influx term should be introduced...

.... The most common of these techniques is gas compression; but another feasible technique, which is rarely ever explored, is water injection. This paper evaluates the incremental benefit of water injection in a conventional gas reservoir when compared to gas compression. This was achieved through analytical...

... that it is possible to monitor the movement of the GWC through time lapsed pressure build up analysis, and, effectively predict the timing of water breakthrough in a strong aquifer driven dry gas reservoir. This paper was selected for presentation by an SPE program committee following review of information...

... Abstract Commonly when a conventional gas reservoir is produced always the recovery factor expected is between 80-90%, but when the water appears always the plans are subjected to changes, different considerations and several questions raises regarding how the reservoir will be affected...

... Abstract Aquifer strength has a significant impact on recovery largely due to subsurface uncertainty in the aquifer connectivity and aquifer size. A wide range in recovery has been documented in the literature and has been similarly observed in gas reservoirs in the Columbus Basin (Trinidad...

... factor Bg for a gas reservoir: (2) B g = C 2 ( Z T P ) C1 and C2 are constants depending of the units. The decline method (DCA) is empirical and does not require knowledge of the parameters of the well and reservoir, it forecasts the behavior of well production. One...

..., the combination of low production rate and high permeability, together with low k v /k h ratio cases, lead to increased recovery with rising aquifer size until the aquifer achieved a threshold value of 25 times the gas reservoir's volume, following which its behavior reversed. Impact of Gas Column Thickness...

... Abstract Many shale/tight gas reservoirs can have pore scale values in the range from one to hundreds of nanometer. And the flow in nano-scale deviate the Darcy's law. Knudsen diffusion and/or gas slippage effects usually have modeled to character the non-Darcy flow mechanisms by many authors...

... Abstract A significant challenge in the development of gas reservoirs connected to strong aquifers is the prediction of aquifer movement and the timing of water breakthrough. Generally reservoir simulation techniques are used to solve this problem but we cannot calibrate the prediction until...

... reservoir units contain original gas in place of less than 0.5 tcf and are usually produced by one or two wells. The shallow gas reservoirs (< 4500 ft TVDSS) constitute a significant percentage of the non-producing BP Trinidad gas portfolio. Reservoir data, such as rock compressibility, and performance...

... Abstract Process or delivery speed represented by the ratio of permeability and porosity is shown to provide a continuum between conventional, tight and shale gas reservoirs. The surprising result, based on core data from various North American basins, leads to distinctive flow units for each...