March 2000
Supplement
00-03_cementing_T14.htm (Mar-2000)
A monthly magazine offering industry news, statistics and technical editorial to the oil and gas drilling, exploration and production industry.
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Spacers And Chemical Washes/Preflushes |
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| Spacer or Wash Type | Description | BJ Services | Halliburton | Nowsco- Fracmaster Canada | San Antonio | Schlumberger |
| Chemical Washes (Not weighted with solid weighting agents) | Reactive – containing sodium silicate or similar reactive materials | Flowcheck, Flo Guard | Super Flush | Thix-Seal Flush | Zonelock, Zonelock SC | |
| Aqueous – containing surfactants and solvents. No fluid loss control. | Mud Clean, MRS-2 | Mud Flush | Nowflush 6, Nowflush 7 | CW-7, CW-8, CW-8ES | ||
| Aqueous – Containing surfactants and solvents. Contains agents to reduce fluid loss to formations and/or to viscosify solution. | Mud Sweep, Ultraflush II | Alpha Preflush | CW-100, CW101 | |||
| Non-aqueous – blend of surfactants, solvents, etc. in hydrocarbon carrier fluid. | N-Ver-Sperse 0 | |||||
| Chemical Washes Recommended for use in wells drilled with oil base drilling fluids | N-Ver-Sperse 0, Alpha Preflush | Nowflush 5, Nowflush 6 | CW-8, CW-8ES, CW-101 | |||
| Chemical washes designed for mixability at sub-zero temperatures for cold environments | Aqueous formulations containing a freeze point depressant | |||||
| Spacers – Aqueous, weighted | Turbulent Flow – formulated for turbulent flow regime at low pump rates | MCS-2, MCS-3, MCS-4, MCS-5, Ultraflush II, Turbo Flo 3 | Dual Spacer, SD Spacer, Spacer 500 | MUDPUSH* XT, MUDPUSH XTO, MUDPUSH XS, MUDPUSH XSO | ||
| Laminar Flow – formulated for laminar flow under most cementing conditions | Tuned Spacer | Supersweep | MUDPUSH XL, MUDPUSH XLO | |||
| Flow regime not specified | Alpha Spacer | MUDPUSH WHT | ||||
| Spacers – Emulsion, weighted | Water continuous (external) phase | APS-1 | MUDPUSH XEO | |||
| Oil continuous (external) phase | OB-1, RSB | SAM-4 | ||||
| Solvent continuous (external) phase | Turbo Solvent | |||||
| Spacers – Recommended for use in wells drilled with oil base drilling fluids | MCS-3, MCS-4, RSB, Turbo-Solvent | Dual Spacer, Alpha Spacer, SAM-4, Tuned Spacer | Nowflush 5, Nowflush 6, | MUDPUSH XLO, MUDPUSH XTO, MUDPUSH XEO | ||
| Spacers – Formulations compatible with high salt concentrations | Dual Spacer, Dual Spacer E | MUDPUSH XS | ||||
| Spacers – Fluids containing blast furnace slag for use with Slag- Mix and slag cement | OMR-2 |
| * Available in Europe only. MUDPUSH is a mark of Schlumberger. APS-1, OB-1, OMR-1 and Turbo-Flo 3 are marks of BJ Services. |
Copyright © 2000 World Oil
Copyright © 2000 Gulf Publishing Company
