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SUPER AUTOCHOKE – Automatic Pressure Regulation Under All conditions
The M-I SWACO SUPER AUTOCHOKE™ provides easier, more precise well pressure control. It reduces the risk of formation breakdown or secondary bubbles during well-control operations, assuring faster, safer completion of kick control.
The SUPER AUTOCHOKE regulates pressure automatically under all conditions. Choke operators no longer have to fight the controls during transition operations, such as mud pump startup or shutdown, or when mud and gas are flowing alternately through the choke.
The SUPER AUTOCHOKE also makes stripping pipe simpler and safer by maintaining casing pressure. As drill pipe is lowered into the hole, an equal volume of fluid is automatically displaced through the choke.
Typical applications include
- Underbalanced drilling
- H2S service
- All pressure control up to 10,000 psi
- Controlling kicks and killing wells
FeaturesS
- Patented sliding shuttle/sleeve design automatically adjusts fluid flow to regulate well, casing and drill pipe pressures
- Triple wear sleeves provide downstream choke bore protection
- No leak shut-in seals (metal-to-metal and Teflon-to-metal)
- High-capacity, 3-in. choke bore
- Long-life, reversible tungsten carbide dynamic and static trim sleeves
- Rated for hydrogen sulfide service
- Chrome-plated internal bores for corrosion resistance
- Plated and stainless external surfaces eliminate painting
- Simple seal replacement
- Electronic position indicator, computer compatible
- Pre-set maximum pressure capability
- Control console includes digital pump stroke counters with rate meter, stop watch and clock
Benefits
- Easy, predictable standpipe pressure control
- No-leak shut-in
- Precision control for stripping pipe into the hole
- Sensitive control for underbalanced drilling with back pressure
- Self-cleaning orifice
- Easy-to-maintain internal components
- Internal design is more durable than needle valve or rotating disc chokes
- Improved flow characteristics at throttle point and through choke bore
- Simple, eight-bolt design allows internal inspection in only five minutes
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SUPER AUTOCHOKE |
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