ZoneSelect ComboFrac Openhole Packer - (en)
Provides both mechanical and swelling-elastomer isolation when high-pressure differentials are required
Applications
- Multizone openhole completions
- High-pressure stimulations
- Horizontal or vertical wells
- Completion of underbalanced wells or wells with losses
Features and Benefits
- The ComboFrac packer has a 5-ft (1.5-m) total element length for an effective seal over the irregular openhole section.
- The packer has a compression-set element for instant isolation and pressure integrity. This feature, along with the compliant seal of the swellable elastomer, enables an early pressure application across the packer.
- The packer withstands pressures up to 10,000 psi (68.9 MPa) during stimulation treatments for maximum effectiveness.
- An interlocking feature secures the setting device during deployment to prevent the packer from setting prematurely.
Tool Description
The Weatherford ComboFrac openhole packer provides both mechanical and swelling-elastomer isolation when high-pressure differentials are required. The packer incorporates a conventional compression-set element and a conforming swellable elastomer. The design combines the instant pack-off capabilities of a hydraulic-set element with the pressure support of a longer, more compliant swellable element. The swellable element can be supplied in a water-, oil-, or hybrid-swelling elastomer to meet individual well requirements.
The ComboFrac packer is part of the Weatherford ZoneSelect® fracturing system, which includes an extensive portfolio of openhole isolation packers, selective stimulation sleeves, and ancillary equipment. Together, these technologies optimize stimulation performance in various wellbore environments.
