Selvol™ Premiol DWC-50

High performance, “all temperature” technology

Selvol™ Premiol DWC50 is a fluid loss control additive that was designed specifically for high-temperature applications.

Selvol™ Premiol DWC50 is a nonretarding powder that provides fluid-loss control and gas migration control properties for cement slurries at temperatures ranging up to 300 F.

Typical Selvol™ Premiol concentrations range from 0.5% to 1.5% by weight of cement (%bwoc). Concentration will depend on bottom hole temperature and desired slurry density. Selvol™ Premiol DWC50 can be used in slurries with a wide range of densities (15.6 ppg up to 17.1 ppg).

Features

  • Brown powder
  • Easy to handle
  • Dissolves easily under ambient conditions
  • Compatible with broad range of additives
  • Mixable at high densities
  • Adjustable rheology
  • Functions at high temperature (150ºC)
  • Functions at low temperature (50-60ºC)・z
  • Meets industry standards for FLC agents:
    • API fluid loss (1000 psi) of < 100 mL/30-min
    • PV < 200 cp, YP > 0 lb/100-sq.ft. YP > 0 lb/100-sq.ft.
    • Free fluid < 2%

Benefits

Selvol™ Premiol DWC additive works well to 300 F (150 C)

  • Powder form
  • Meets industry standards for fluid loss control agents
    • API fluid loss (1000 psi) of < 100 mL/30-min
    • PV < 200 cp, YP > 0 lb/100-sq.ft.
    • Free fluid < 2%
  • Gas migration control
  • Nonretarding
  • Compatible with multiple additives
  • Mixable at high densities
  • Adjustable rheology
  • Easy to design
  • Environmentally friendly
  • Dissolves easily under ambient conditions
  • Easy to handle
  • Could be used across a large temperature range
  • Lower in cost than other high temperature additives

Studies

  • DWC FLC Slurry Designs
  • DWC Condition A Results
    • Rheology
    • Fluid loss
    • Free fluid
    • Thickening time
    • Compressive strength
  • DWC Condition B Results
    • Thickening time
    • Compressive strength

Contact us for more information.on Selvol™ Premiol DWC-50

Application

  • Deep well cementing
  • Annular gas migration
Typical Performance for different slurries with Selvol™ Premiol DWC 50
Temperature100150200250250250263300300
Density (ppg)17.017.017.016.516.516.816.416.416.5
Selvol™ Premiol DWC 50 (%bwoc)0.560.560.560.561.00.561.01.50.71
API Fluid Loss (ml/30min)122020924452527082
Thickening Time
(to reach 70 Bc)
5h12m4h56m
Free Water (%) at a90F1.22.40.80.82.42.40.00.0
Compressive Strength12hr (psi)172619051148
Compressive Strength24hr (psi)182326252113
RECOMMENDED SLURRY DESIGN
WELL CONDITIONSLURRY
7″ LinerTexas Lehigh Class H Cement0.25 gal/sk Kelig-32
17,000 depth35% bwoc 100-mesh silica flour4.94 gal/sk fresh water
BHST=337 F(169F)1.13% bwoc Selvol™ PremiolDensity = 16.5 lb/gal
BHST=300 F(149F)\up0\nosupersubDWC 50Yield = 1.39 cu-ft/sk
BH Pressure=12,3500.03 gal/sk FP-6L
Rheology
Temperature300
rpm
200
rpm
100
rpm
60
rpm
30
rpm
6
rpm
3
rpm
PVYP
80 °F510364204134762014459cP264 lb/100ft2
190 °F28019410464348651cP16 lb/100ft2
Free Water
TemperatureMeasured FluidFree Water (%)
190 °F0 mL0.0
Fluid Loss
TemperatureCollected FluidTimeFluid Loss
300 °F26 mL30 min52cc/30-min
Compressive Strength
ConditionTime
50 psi7:44 (hrs:min)
500 psi9:03 (hrs:min)
2380 psi12:00 (hrs:min)
3548 psi24:00 (hrs:min)
Thickening Time
ConditionTimePressureTemperature
Initial0 min760 psi80 °F
Fimal37 min6000 psi120 °F

Time to 70 BC 4:20 (hr:min)

Products

b_Selvol-PolyvinylAlcohol
b_Selvol-Ultalux
b_Selvol-Ultiloc
b_Selvol-Premiol
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