The Experts below are selected from a list of 18 Experts worldwide ranked by ideXlab platform
Zhiping Li - One of the best experts on this subject based on the ideXlab platform.
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a novel binomial deliverability equation for Fractured gas well considering non darcy effects
Journal of Natural Gas Science and Engineering, 2014Co-Authors: Cai Wang, Zhiping LiAbstract:Abstract Hydraulic fracturing is one of the most effective methods to improve the productivity of low permeability reservoirs. Now, the effects of non-Darcy flow mainly caused by high velocity gas in hydraulic Fracture are paid increasing attention to. But the binomial deliverability equation influenced by non-Darcy effects has never been seen in any paper for the difficulty in coupling linear flow model in the Fracture and radial flow model in the reservoir. Based on equivalent radius models for hydraulic Fracture, the authors put forward the concept of CTER , which is short for conductive thickness between equivalent radii . The value of equivalent radius for finite Conductivity Fracture is smaller than that of Infinite Conductivity Fracture because of the existence of Fracture Conductivity. CTER whose permeability is equal to reservoir permeability is a theoretical radial conductive thickness existing between equivalent radius models for finite Conductivity Fracture and Infinite Conductivity Fracture. By making use of CTER, we deduce the novel binomial deliverability equation with respect to the inertial non-Darcy effects in the Fracture. With the help of the new concept and the new equation, it is found that non-Darcy effect caused by high flow rate of gas in the Fracture influences high permeability reservoirs (>5 mD) more dramatically than those with low permeability (
Cai Wang - One of the best experts on this subject based on the ideXlab platform.
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a novel binomial deliverability equation for Fractured gas well considering non darcy effects
Journal of Natural Gas Science and Engineering, 2014Co-Authors: Cai Wang, Zhiping LiAbstract:Abstract Hydraulic fracturing is one of the most effective methods to improve the productivity of low permeability reservoirs. Now, the effects of non-Darcy flow mainly caused by high velocity gas in hydraulic Fracture are paid increasing attention to. But the binomial deliverability equation influenced by non-Darcy effects has never been seen in any paper for the difficulty in coupling linear flow model in the Fracture and radial flow model in the reservoir. Based on equivalent radius models for hydraulic Fracture, the authors put forward the concept of CTER , which is short for conductive thickness between equivalent radii . The value of equivalent radius for finite Conductivity Fracture is smaller than that of Infinite Conductivity Fracture because of the existence of Fracture Conductivity. CTER whose permeability is equal to reservoir permeability is a theoretical radial conductive thickness existing between equivalent radius models for finite Conductivity Fracture and Infinite Conductivity Fracture. By making use of CTER, we deduce the novel binomial deliverability equation with respect to the inertial non-Darcy effects in the Fracture. With the help of the new concept and the new equation, it is found that non-Darcy effect caused by high flow rate of gas in the Fracture influences high permeability reservoirs (>5 mD) more dramatically than those with low permeability (
Sohrab Zendehboudi - One of the best experts on this subject based on the ideXlab platform.
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semi analytical solution for productivity evaluation of a multi Fractured horizontal well in a bounded dual porosity reservoir
Journal of Hydrology, 2020Co-Authors: Mohammad Bagher Asadi, Morteza Dejam, Sohrab ZendehboudiAbstract:Abstract Development of horizontal drilling and multi-stage fracturing technologies makes the production of unconventional reservoirs economically and practically feasible. We study the productivity of the multi-Fractured horizontal well (MFHW) in a bounded dual-porosity formation. The Infinite Conductivity Fracture case is modeled by combining the Laplace transform (LT) and finite Fourier cosine transform (FFCT). The model is implemented to finite Conductivity cases by applying the distributed volumetric sources (DVS) method. The model outputs are verified by comparing them with the results of the separation of variables technique. Different possible flow regimes are observed. The capability of the finite Conductivity solution method for optimizing the Fracture geometry is approved. The effects of the interporosity coefficient and storativity ratio as the dual-porosity parameters on the productivity of a bounded dual-porosity reservoir are studied by conducting a sensitivity analysis. Similar to single-porosity reservoirs, it is found that the optimum Fracture design based on the pseudo-steady state flow regime leads to a higher productivity in the transient flow regimes in the dual-porosity cases. Finally, the proposed approach is used to perform an economic optimization of the hydraulic Fracture design. This research study assists researchers and engineers to make better/more accurate Fracture design in various applications such as production from unconventional petroleum reservoirs and remediation in Fractured underground porous systems.
Mohammad Bagher Asadi - One of the best experts on this subject based on the ideXlab platform.
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semi analytical solution for productivity evaluation of a multi Fractured horizontal well in a bounded dual porosity reservoir
Journal of Hydrology, 2020Co-Authors: Mohammad Bagher Asadi, Morteza Dejam, Sohrab ZendehboudiAbstract:Abstract Development of horizontal drilling and multi-stage fracturing technologies makes the production of unconventional reservoirs economically and practically feasible. We study the productivity of the multi-Fractured horizontal well (MFHW) in a bounded dual-porosity formation. The Infinite Conductivity Fracture case is modeled by combining the Laplace transform (LT) and finite Fourier cosine transform (FFCT). The model is implemented to finite Conductivity cases by applying the distributed volumetric sources (DVS) method. The model outputs are verified by comparing them with the results of the separation of variables technique. Different possible flow regimes are observed. The capability of the finite Conductivity solution method for optimizing the Fracture geometry is approved. The effects of the interporosity coefficient and storativity ratio as the dual-porosity parameters on the productivity of a bounded dual-porosity reservoir are studied by conducting a sensitivity analysis. Similar to single-porosity reservoirs, it is found that the optimum Fracture design based on the pseudo-steady state flow regime leads to a higher productivity in the transient flow regimes in the dual-porosity cases. Finally, the proposed approach is used to perform an economic optimization of the hydraulic Fracture design. This research study assists researchers and engineers to make better/more accurate Fracture design in various applications such as production from unconventional petroleum reservoirs and remediation in Fractured underground porous systems.
Morteza Dejam - One of the best experts on this subject based on the ideXlab platform.
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semi analytical solution for productivity evaluation of a multi Fractured horizontal well in a bounded dual porosity reservoir
Journal of Hydrology, 2020Co-Authors: Mohammad Bagher Asadi, Morteza Dejam, Sohrab ZendehboudiAbstract:Abstract Development of horizontal drilling and multi-stage fracturing technologies makes the production of unconventional reservoirs economically and practically feasible. We study the productivity of the multi-Fractured horizontal well (MFHW) in a bounded dual-porosity formation. The Infinite Conductivity Fracture case is modeled by combining the Laplace transform (LT) and finite Fourier cosine transform (FFCT). The model is implemented to finite Conductivity cases by applying the distributed volumetric sources (DVS) method. The model outputs are verified by comparing them with the results of the separation of variables technique. Different possible flow regimes are observed. The capability of the finite Conductivity solution method for optimizing the Fracture geometry is approved. The effects of the interporosity coefficient and storativity ratio as the dual-porosity parameters on the productivity of a bounded dual-porosity reservoir are studied by conducting a sensitivity analysis. Similar to single-porosity reservoirs, it is found that the optimum Fracture design based on the pseudo-steady state flow regime leads to a higher productivity in the transient flow regimes in the dual-porosity cases. Finally, the proposed approach is used to perform an economic optimization of the hydraulic Fracture design. This research study assists researchers and engineers to make better/more accurate Fracture design in various applications such as production from unconventional petroleum reservoirs and remediation in Fractured underground porous systems.