Productivity of the Horizontal Well with Finite-conductivity Fractures

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  • (1. Vehicle and Energy College, Yanshan University, Qinhuangdao 066004, China;
    2. Dagang Oilfield Company, PetroChina, Tianjin 300280, China)

Received date: 2009-05-26

  Revised date: 2009-08-04

  Online published: 2009-10-10

Abstract

Based on the fluid theory and analysis of the advantages and disadvantages of existing models, this paper studies the characteristics of fractured horizontal wells and the distribution of fracture production in formation. According to the principle of Dupuit formula of finite conductivity vertical wells, it calculates the effective wellbore radius of production formula for horizontal wells. With the effective wellbore radius, it sets up a productivity formula group for a horizontal well with N fractures. With three fractures as examples, it analyzes the production dynamic characteristics, and gets the relationship among some parameters, including formation parameters, horizontal well fractures geometry parameters and physical parameters. This paper also studies the the impact of fractures number, spacing and other factors on flow distribution for the horizontal well fracture. It shows that this method can guide the low permeability fractured horizontal well optimization.

Cite this article

ZHANG Feng, DIAO Shi-Min, QIN Jian-Min, DENG Si-Qing, SUN Wei-Gang, YI Ji-Gui- . Productivity of the Horizontal Well with Finite-conductivity Fractures[J]. Natural Gas Geoscience, 2009 , 20(5) : 817 -821 . DOI: 10.11764/j.issn.1672-1926.2009.05.817

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