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MONTAGEL BP 50

MONTAGELTM
BP 50

Water shut-off and relative permeability modifier technology in offshore and onshore Oil&Gas fields.

MONTAGELTM grades of precrosslinked polyacrylamides are used as active treatments for water shutoff and sand control in offshore and onshore oil and gas fields. MONTAGELTM BP 50 is classified as non-toxic and fully biodegradable by the OCNS organization.
TDS MONTAGEL BP 50
TDS MONTAGEL BP 50

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Mechanism of action

High water cut can occur under various production conditions, such as moving oil-water contacts causing water coning and breakthrough, watered out layers or cross-flow in multi-layered reservoirs, or altered relative permeability. Washed out MONTAGELTM BP 50 consists of colloidal particles of acrylamide-based polymers crosslinked with organic covalent crosslinkers.
In these environments, MONTAGELTM BP 50 microgels, once placed in the formation, are swollen by the water present in the formation pore space, and adsorb onto the rock surface.
Thereafter the microgel collapses under capillary pressure, with the water entrapped. The result is that the relative permeability of water decreases, allowing for oil flow. Relative permeability changes are also stable over a long period of time.

SDS MONTAGEL BP 50
SDS MONTAGEL BP 50

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Characteristics

Main characteristics of MONTAGELTM BP 50 are:

  • Narrow size controlled distribution
  • Excellent thermal (up to 165°C) and chemical resistance
  • Non-toxic and comply with OSPAR regulation
  • Water soluble
  • Not affected by parameters such as pH or presence of electrolytes
  • Good injectivity and depth of propagation