Experimental Study of Discontinuous Proppant Placement in Conductivity

  • Guoqing XuEmail author
  • Xianyou Yang
  • Yang Shi
  • Yun Jiang
  • Futao Li
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)


Most of the existing hydraulic fracturing adopts continuous placement of proppant. However, there are few studies about discontinuous proppant placement. In order to evaluate the effect of discontinuous proppant pillar in conductivity, conductivity experiments are done to testify by using sandstone and shale rock cells. The result shows that, for ceramic sands and coated sands, in low closure pressure which is less than 40 MPa, it has extremely higher conductivity, and the conductivity declines as the pressure increases higher than 40 MPa which indicates that the highway constructed by pillars is the main factor to affect the conductivity. It has little difference with continuous placement of proppant when it is in high pressure. For high sand concentration, it is easy to get high conductivity. However, the increase rate will decline with the increase of closure pressure, while when the resin coated sand is placed in monolayer pillar, the conductivity could be 1–2 orders of magnitude higher than homogeneous proppant placement which indicates that under the premise of obtaining the same conductivity using less proppant could lead to higher conductivity so that we can save material and time for treatment.


Discontinuous placement Proppant pillar Conductivity Closure pressure Proppant 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Guoqing Xu
    • 1
    Email author
  • Xianyou Yang
    • 1
  • Yang Shi
    • 1
  • Yun Jiang
    • 1
  • Futao Li
    • 1
  1. 1.Research Institute of Petroleum Exploration and Development (RIPED)BeijingChina

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