Open AccessPerformance and Damage Evaluations of Fracturing Fluid in Tight Sandstone Oil Reservoirs
Author(s) -
Xibao Liu
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/295/4/042003
Subject(s) - fracturing fluid , petroleum engineering , residual oil , permeability (electromagnetism) , shear (geology) , rheology , geology , formation water , geotechnical engineering , materials science , composite material , petrology , chemistry , membrane , biochemistry
Fracturing fluid from M oilfield, Ordos’s basin, China was investigated. The shear viscosity, emulsification and demulsification performance, residual content in gel breaking fluid, compatibility among foreign fluid and formation water, and permeability damage were separately analyzed. Results show that the fracturing fluid system has better shear properties and sand carrying capacity at high temperature. The emulsification rate reached more than 60%, while the demulsification rate was less than 25%. The compatibility among working fluid and the formation water was relatively poor and precipitation was easily to generate. The residue content in broken gel was relatively low but the residue particles were more likely to enter micro fractures; permeability damage was moderately weak in fractured samples.