Productivity Model of Multi-Layer Reservoir with Blocks
Pang Jin1, 2, *, Lei Guanglun1, Liu Hong2, Zhang Yalong2, Yue Yixing2
Identifiers and Pagination:Year: 2014
First Page: 113
Last Page: 118
Publisher Id: TOPEJ-7-113
Article History:Received Date: 13/11/2014
Revision Received Date: 9/12/2014
Acceptance Date: 10/12/2014
Electronic publication date: 31/12/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Based on the assumption of multi-layer reservoir with complex blocks and combined with the wellbore flow equations, we established a percolation mathematical model for the coupled multi-layer reservoir with blocks and wellbore, and then we utilized the Laplace change, Stehfest inversion and conjugate gradient method, . to solve the model. Then, we took the multi-layer reservoir with complex blocks as an example to simplify the shape of the reservoir and calculate the distribution of pressure and production of the horizontal well when it passes through two sand bodies. Finally, we calculated the dimensionless pressure derivative and productivity of four different types of oil wells (or have different relative positions). This model has provided a theoretical basis to select the reasonable well types for the multi-layer reservoir with complex blocks.