Molecular Membrane Agent

MoM-ACID™HT

Molecular Membrane Agent

As an acid additive, it subverts the traditional mechanism of reducing the acid-rock reaction rate relying on the viscosity of the acid. It reduces the contact between hydrogen ions and carbonates through the synergistic effect of chemical bonds and physical bonds, thereby delaying the acid-rock reaction rate and achieving low viscosity and high retardation. The retardation rate of the acid with a viscosity of 1-3mP·s is equivalent to that of the gelled acid with a viscosity of 60mPa·s. It can meet the requirements of high retardation, deep penetration, and volume-fracture-network acid fracturing stimulation in reservoirs at 180℃.

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Characteristics

Low viscosity: The viscosity of the molecular film agent in acid is ≤5mPa·s

High retardation: The reaction rate of high-temperature molecular film acid is reduced by more than 40% compared with conventional gelled acid

Deep penetration: With a low acid-rock reaction rate and high retardation, it can improve the stimulation effect at the far end of the fracture

High temperature resistance: It can meet the acid fracturing requirements of ultra-high temperature reservoirs at 180℃

Technical Specifications

  • Appearance
    Colorless to light yellow transparent liquid
  • Reduction rate of dynamic acid-rock reaction at 180℃
    ≥70%
  • Solution viscosity
    ≤5mPa·s
  • pH
    3~5
  • Density
    1.000~1.200 g/cm³
  • Open flash point
    ≥60℃
  • Pour point
    ≤0℃
  • Dissolution and dispersion property
    When dissolved in 3% acid, there is no delamination, turbidity or precipitation