A Study of Fluid Leakoff in Hydraulic Fracture Propagation Conference Paper uri icon

abstract

  • Abstract A pressure dependent fluid leakoff (PDFL) model and a constant fluid leakoff model (CRFL) model are incorporated into a 3D fracture simulator for studying the effect of fluid leakoff on propagation of a hydraulic fracture. In order to make a meaningful comparison, the leakoff coefficient used in the CFL model is calculated by equating its final fracture area to that predicted by the PDFL model. The propagation behavior of a hydraulic fracture based on these two fluid leakoff models are assessed and evaluated by comparing the calculated time histories of the bottom hole pressure, fracture opening width, and proppant distribution inside the fracture. Although the agreement between the predicted results from these two fluid leakoff models are good, detailed features in the calculated time histories of BHP and fracture opening width are very different. The difference is large during the fracture growth period, but starts to decrease when proppant packing begins. The results from this study suggest that a more accurate information on propagation of a hydraulic fracture can be obtained by taking the pressure dependent fluid leakoff into consideration.

name of conference

  • All Days

published proceedings

  • All Days
  • Proceedings of the International Oil and Gas Conference and Exhibition in China, IOGCEC

author list (cited authors)

  • Yew, C. H., Ma, M. J., & Hill, A. D.

citation count

  • 7

complete list of authors

  • Yew, CH||Ma, MJ||Hill, AD

publication date

  • November 2000