archigugl.blogg.se

1. Kappa saphir software buttons skin#
2. Kappa saphir software buttons series#

Kazemi proposed a new model which is assumed that the reservoir is composed of horizontal fractures and matrix, and the fracture system evenly divides the matrix system. The matrix system which is in a hexahedral shape is homogeneous and isotropic. They assumed that the fracture system evenly divides the matrix rock. Warren and Root proposed the idealized dual-porosity model and solved the governing equation of pseudosteady flow analytically. The porosity of fracture is much less than that of matrix, but the permeability of fracture is much greater than that of matrix. hypothesized that there are two continuous media, matrix and fracture. In order to characterize the complex pore structures and flow features of fractured and fractured-vuggy carbonate oil reservoirs, the concept of multiple-porosity is proposed. Nevertheless, it is difficult to predict the production and analyze production data for fractured and fractured-vuggy carbonate oil reservoirs.ĭescription of the fractured and fractured-vuggy carbonate reservoir. At present, depletion development is mainly applied to extract oil and gas from carbonate reservoirs, and the pressure drawdown is quite large to have a considerable production rate. Production wells of carbonate reservoirs typically have high production in the early production stage but they decline rapidly, leading to the difficulties of further exploitation. The complex structures of the reservoir are characterized by the presence of different porous media and transmissibility.

With further exploration and development, these fractured (see Figure 1(a)) and fractured-vuggy (see Figure 1(b)) carbonate reservoirs have been attracting considerable attention in recent years. IntroductionĬarbonate reservoirs, which approximately account for 60% of the world oil reservoirs, represent a significant amount of oil and gas reserves and have a great potential to be exploited. In correlation with other traditional well test analysis, this approach effectively reduces the multisolution probability of interpretation.

Kappa saphir software buttons skin#

are -shaped for dual-porosity reservoirs and -shaped for triple porosity reservoirs and also indicate that the interpreted parameters such as permeability, skin factor, storativity ratio, and interporosity flow coefficient using new decline type curves are aligned well test interpretation. The validation of the new method is demonstrated in comparison to the results of well test interpretation. Finally, two example wells from the fractured and fractured-vuggy carbonate reservoirs are used to perform rate decline analysis with both the Blasingame type curves and the new type curves. In addition, the effects of the storativity ratio, interporosity flow coefficient, skin factor, and dimensionless radial distance of external boundary on production performance are also analyzed.

Kappa saphir software buttons series#

Then, a new function and that related to the dimensionless production rate is introduced, and a series of new decline type curves are drawn to make a clear observation of different flow regimes. Firstly, analytical solutions to characterize the different multipore media and simulate transient production behavior of fractured and fractured-vuggy carbonate reservoirs during the transient flow regime are presented. In this paper, a new and practical methodology for production data analysis of fractured and fractured-vuggy carbonate reservoirs is proposed.

It is highly challenging to achieve accurate interpretation results. Carbonate reservoirs typically have complex pore structures, so the production wells typically have high production in the early production stage, but they decline rapidly.