Limiting the inflow of injected and reservoir waters in producing wells (selective water isolation)

Appointment:

• Shutdown of washed (worked out) intervals heterogeneous formation
• Elimination of breakthrough of injected waters on highly permeable interlayers (layers)
• Disconnection of plantar waters as a result of cone formation.

Scope of application:

• Terrigenous and carbonate reservoirs
• Permeability of at least 100 *10-3 microns 2
• The temperature in the installation area of the hydraulic screen is up to 90°C.
• Mandatory tightness of casing production columns

sic properties:

• Adjustable induction gelation period (5~20 hours)
• High rate of transition of the solution to the gel (0.5~1.5 hours)
• Selectivity of penetration
• High shear pressure gradient (up to 10.0 MPa/m)

Technology Feature:

1. The technological process is carried out continuously installation of USPZS-4 of own production.
2. The basis of the applied technology is low molecular weight water-soluble polymers.