ADVANCED SINGLE-TRIP, SINGLE-POINT TECHNOLOGY FOR MULTIZONE GRAVEL PACKING
Our WFXØ system provides an upper completion seal with a VØ rating—the highest possible gas-tight rating available under ISO/API standards—for reliable, gas-tight isolation without overstressing the formation. Not only that, the system performs single-trip, single-point gravel packing across multiple zones, which reduces the risk of tool sticking and saves significant rig time.
THE WFXØ SYSTEM REDUCES RIG TIME, ENHANCES SAFETY, AND ADDS FLEXIBILITY TO YOUR OPERATIONS.
ELIMINATE THE INTERMEDIATE COMPLETION
By integrating our Optibarrier™ ball valve into the lower completion, the WFXØ system acts as a deep-set isolation barrier. This integration eliminates the need to run an intermediate completion and the associated 2 to 3 days of installation time.
ACHIEVE MULTIZONE GRAVEL PACKING IN A SINGLE TRIP
With shunt-tube technology (STT) sand screens and an STT-equipped TerraForm® packer, the WFXØ system enables single-trip gravel-pack slurry delivery. The shunts help to sequentially transport the slurry to each gravel-pack zone in a single pump operation.
CUSTOMIZE THE MODULAR SYSTEM TO YOUR NEEDS
Whether your openhole well is equipped with a straightforward, single-zone or a complex, multizone completion, you can customize the modular WFXØ gravel-pack system to your needs. The system reduces unnecessary components and related expenses.
REDUCE RIG TIME, ENHANCE SAFETY, AND ADD FLEXIBILITY TO YOUR OPENHOLE GRAVEL-PACKING OPERATIONS.
Openhole gravel packing is critical to efficient recovery, but doing so across multiple zones presents challenges ranging from tool sticking and unreliable isolation to formation stress fractures. The Weatherford WFXØ openhole gravel-pack system puts an end to these common problems. The first gravel-pack system to incorporate a VØ-rated quick connect, closing sleeve, and gravel pack packer provides reliable, gas-tight reservoir isolation without overstressing the formation.
The system provides single-trip, single-point gravel packing, which reduces the chance of tool sticking and saves a significant amount of rig time on every job. Whether your openhole well requires a straightforward, single-zone completion or a complex, multizone completion, you now have the flexibility to customize the modular WFXØ gravel-pack system to your needs.
EFFECTIVE, SINGLETRIP GRAVEL PACKING
Retain gas-tight seals in any operating conditions.
The WFXØ system is the first VØ-rated gravel-pack system. The VØ rating, which allows no gas leakage, is the highest possible gas-tight rating available under ISO/API standards. The system incorporates three VØ-rated components—the WFXØ packer, WFXØ closing sleeve, and WFXØ quick connect—that stand up to the rigors of deepwater environments.
Attain cased-hole functionality in openhole environments.
When incorporated into the WFXØ system, the TerraForm® openhole packer system provides life-of-well zonal isolation and formation protection. The TerraForm packer uses proprietary cup-seal isolation technology that conforms tightly to non-uniform wellbores. With up to 24 independent setting mechanisms around the circumference of the elastomer seal, the packer provides effective expansion and isolation capabilities, even in oval wellbores. And because the cup seals are tension set, they hold form and maintain a robust seal through thermal swings.
Achieve multizone gravel packing in a single trip.
The WFXØ system provides a single-trip gravel-pack slurry delivery by integrating shunt-tube technology (STT) sand screens and an STT-equipped TerraForm packer into your completion. The shunts provide a secondary path that sequentially transports the slurry to each gravel-pack zone in a single pump operation—which enables successful, void-free gravel packs across multiple zones.
WFXØ completion string
OPTIBARRIER BALL VALVE (ISO 28781 V1 and API 19V V1)
- Provides a deep-set, bidirectional, and fully testable reservoir barrier for deepwater applications
- Opens and closes on demand using mechanical activation, hydraulic means, or radio-frequencyidentification (RFID) technology
- Maximizes flow area by maintaining a fullbore inside diameter
SHUNT-TUBE TECHNOLOGY，Single-trip Gravel Packing
- Provides complete gravel packing across the entire screen length by enabling the gravel-pack slurry to easily pack voids between sand screens and the borehole
- Facilitates single-trip gravel packing by providing an uninterrupted flow path that extends to all producing zones
- Is compatible with any Weatherford sand screen
- Is a built-in feature of the Terraform SZE packer
WFXØ GRAVEL-PACK PACKER ，(ISO 14310 VØ and API 11D1 VØ)
- Provides a gas-tight VØ seal
- Prevents differential-pressure transmission through the element, which eliminates boost pressure that could damage the mandrel
- Preserves casing integrity with a cylindrical slip system that evenly distributes loads through 360° of the casing
- Simplifies packer retrieval by preventing the slips from reengaging the lower cone
- Provides a 10,000-psi (69-MPa) differential pressure rating; a 400,000-lb (181,437-kg) hanging capacity; a 20,000-ft-lb (21,116-N∙m) rotational torque capacity for extendedlength screen placement; and a 10-bbl/min (1,590-L/min) washdown capacity
WFXØ GRAVEL-PACK CLOSING SLEEVE (IS0 14998 VØ and API 19AC VØ)
- Provides a flow path for up to 500,000 lb (226,796 kg) of gravel-pack slurry to enter the
- annulus above the sand screens at rates of up to 10 bbl/min (1,590 L/min)
- Opens and closes multiple times as needed
- Enables deployment of long assemblies by torsionally locking the sleeve to the packer
- Minimizes erosion of ports and adjacent casing
- Isolates seal surfaces from the flow path of slurry
- Pressure test post-gravel pack
- Provides a 10,000-psi (69-MPa) differential pressure rating and 20,000-ft-lb (27,116-N∙m) torque capacity
TERRAFORM SZE，Openhole Packer
- Enables multizone, openhole gravel packing with cased-hole functionality
- Provides a continuous flow path for gravel-pack slurry by connecting to sand screens equipped with external shunt tubes
- Conforms to non-uniform wellbores with proprietary cupseal isolation technology
- Maintains a tight seal through changing well conditions with up to 24 independent, tensionset mechanisms, which enables life-of-well zonal isolation and formation protection
WFXØ QUICK CONNECT，(IS0 14998 VØ and API 19AC VØ)
- Enables making up the gravel-pack packer to the blank pipe/screen without rotating the assembly or using casing tongs
- Reduces guesswork and enhances safety with a self-aligning profile that eliminates complex drill-floor operations
- Provides 10,000-psi (69-MPa) differential pressure rating and 17,250-ft-lb (23,388-N∙m) torque capacity
- Enables a post-assembly pressure test on the rig floor
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