Open AccessNEW MODEL TO DETERMINE THE PRESSURE GRADIENT OF PELLETIZED GEL PPG IN THE ANTHROPOGENIC FRACTURE
Author(s) -
S. K. Sokhoshko,
Gulzar Ali
Publication year - 2015
Publication title -
izvestiâ vysših učebnyh zavedenij. neftʹ i gaz
Language(s) - English
Resource type - Journals
ISSN - 0445-0108
DOI - 10.31660/0445-0108-2015-6-34-37
Subject(s) - pressure gradient , fracture (geology) , viscoplasticity , constant (computer programming) , materials science , consistency (knowledge bases) , mechanics , thermodynamics , composite material , mathematics , physics , constitutive equation , computer science , geometry , finite element method , programming language
The ultimate goal of this paper is to develop a method to to determine the pelletized gel pressure gradient, PPG, in fractures resulted from FHF applied at later stages of oil fields development. Using the laboratory fracture model the values of constants (apparent constant of consistency and apparent index of pseudoductility) for viscoplastic fluid equation were obtained. These constants were also used in the derived equation for pressure gradient along the induced fracture. The gel pressure gradient was calculated by the equation of gel movement along the fracture. This equation enables to calculate the pressure gradient for each size of pelletized gel granules depending on the fracture width and the gel injection rate.