Fracture conductivity decrease due to proppant deformation and crushing, a parametrical study

Jiahang Han, John Yilin Wang

Research output: Contribution to conferencePaper

7 Citations (Scopus)

Abstract

Sustainable high fracture conductivity is a key to successful stimulation. The reduction of hydraulic fracture conductivity due to proppant deformation and crushing is frequently observed. Previous researches are based on laboratory experiments and empirical correlations, which can not fully explain proppant damage in field cases. In this paper, we applied our fully coupled fluid flow and geomechanical model to further understand the proppant pack deformation and crushing. Parametric studies on wellbore and reservoir pressures, formation properties, and proppant biot constant were performed to understand proppant deformation and crushing in different conditions. Additionally, an analytical model for avoiding proppant crushing was developed for fractured wells. Through this research, we found fracture conductivity loss due to deformation and crushing are severer than laboratory results. Large deformation and high probability of crushing were observed near wellbore according to the net pressure. Fast flow back (low bottom hole pressure) would generate large proppant crushed zone. Various reservoir properties as pressure gradient, formation stiffness, and matrix permeability were also investigated. Strong proppant is highly recommended for natural fractures, and hydraulic fracture near well bore especially for tight formations. Small chock size (high BHP) is also recommended during early production. Additionally, a simple analytical model is provided, accoding to the parametrical studies, for operating well without breaking proppant pack.

Original languageEnglish (US)
Pages219-231
Number of pages13
StatePublished - Jan 1 2014
EventSociety of Petroleum Engineers Eastern Regional Meeting 2014: Ramping up in Appalachia - Charleston, United States
Duration: Oct 21 2014Oct 23 2014

Other

OtherSociety of Petroleum Engineers Eastern Regional Meeting 2014: Ramping up in Appalachia
CountryUnited States
CityCharleston
Period10/21/1410/23/14

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Proppants
Crushing
Analytical models
Hydraulics
Bottom hole pressure
Pressure gradient
Flow of fluids
Stiffness

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Han, J., & Wang, J. Y. (2014). Fracture conductivity decrease due to proppant deformation and crushing, a parametrical study. 219-231. Paper presented at Society of Petroleum Engineers Eastern Regional Meeting 2014: Ramping up in Appalachia, Charleston, United States.
Han, Jiahang ; Wang, John Yilin. / Fracture conductivity decrease due to proppant deformation and crushing, a parametrical study. Paper presented at Society of Petroleum Engineers Eastern Regional Meeting 2014: Ramping up in Appalachia, Charleston, United States.13 p.
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Han, J & Wang, JY 2014, 'Fracture conductivity decrease due to proppant deformation and crushing, a parametrical study' Paper presented at Society of Petroleum Engineers Eastern Regional Meeting 2014: Ramping up in Appalachia, Charleston, United States, 10/21/14 - 10/23/14, pp. 219-231.

Fracture conductivity decrease due to proppant deformation and crushing, a parametrical study. / Han, Jiahang; Wang, John Yilin.

2014. 219-231 Paper presented at Society of Petroleum Engineers Eastern Regional Meeting 2014: Ramping up in Appalachia, Charleston, United States.

Research output: Contribution to conferencePaper

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Han J, Wang JY. Fracture conductivity decrease due to proppant deformation and crushing, a parametrical study. 2014. Paper presented at Society of Petroleum Engineers Eastern Regional Meeting 2014: Ramping up in Appalachia, Charleston, United States.