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A New Model to Predict Productivity of Multiple-Fractured Horizontal Well in Naturally Fractured Reservoirs

Author

Listed:
  • Junchao Wang
  • Haitao Li
  • Yongqing Wang
  • Ying Li
  • Beibei Jiang
  • Wei Luo

Abstract

In order to predict productivity of multiple-fractured horizontal well in fractured reservoir, flow models of reservoir and hydraulic fractures based on the volumetric source idealization are developed. The models are solved by utilizing Laplace transformation and orthogonal transformation, and flow rate of the well is calculated by coupling the two models. Compared to traditional point source functions, volumetric source function has many advantages in properties of function and programming calculation. The productivity predicting model is verified via an analytical ternary-porosity model. Moreover, a practical example of fractured horizontal well is studied to analyze the productivity and its influent factors. The result shows that flow rate of each fracture is different and inner fracture contributes least to productivity. Meanwhile, there are optimizing ranges for number, length, and conductivity of hydraulic fractures. In low-permeability reservoir, increasing surface area in contact with reservoir by increasing number and length of hydraulic fractures is the most effective method to improve the productivity.

Suggested Citation

  • Junchao Wang & Haitao Li & Yongqing Wang & Ying Li & Beibei Jiang & Wei Luo, 2015. "A New Model to Predict Productivity of Multiple-Fractured Horizontal Well in Naturally Fractured Reservoirs," Mathematical Problems in Engineering, Hindawi, vol. 2015, pages 1-9, February.
    • Handle: RePEc:hin:jnlmpe:892594
    DOI: 10.1155/2015/892594
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