MyJournals Home  

RSS FeedsEnergies, Vol. 14, Pages 5857: Study on Deliverability Evaluation of Staged Fractured Horizontal Wells in Tight Oil Reservoirs (Energies)


16 september 2021 11:30:42

Energies, Vol. 14, Pages 5857: Study on Deliverability Evaluation of Staged Fractured Horizontal Wells in Tight Oil Reservoirs (Energies)

At present, the existing deliverability evaluation models mainly consider the impact of specific factors on production, and the description of the complex fracture network structure primarily remains at the stage of an ideal dual-pore medium with uniform distribution. However, this cannot reflect the actual fracture network structure and fluid flow law of fractured horizontal wells. Thus, in this paper, a non-uniform fracture network structure is proposed considering the influence of the threshold pressure gradient and stress sensitivity characteristics on the production performance of horizontal wells. The stress sensitivity and the fractal theory are combined to characterize the permeability of the complex fracture network, and a three-zone compound unsteady deliverability model for staged fractured horizontal wells in tight oil reservoirs is successfully developed. Laplace transformation, perturbation theory, and numerical inversion are applied to obtain the semi-analytical solution of the proposed deliverability model. The reliability and accuracy of the analytical solution are verified by the classical tri-linear flow model and an oil field example. The effects of related influential parameters on the production of horizontal wells are analyzed. The deliverability evaluation method proposed in this paper can provide a theoretical basis for formulating rational development technology policies for tight oil reservoirs.

51 viewsCategory: Biophysics, Biotechnology, Physics
Energies, Vol. 14, Pages 5855: Storage and Upgrading of Biogas by Physicochemical Purification in a Sudano-Sahelian Context (Energies)
Energies, Vol. 14, Pages 5858: Impact of Wind and Solar Generation on the Italian Zonal Electricity Price (Energies)
blog comments powered by Disqus
The latest issues of all your favorite science journals on one page


Register | Retrieve



Copyright © 2008 - 2021 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Nachrichten