Operators today are more likely to encounter challenging well environments than routine ones. Designed and engineered by Weatherford for critical environments, the IntegraLine high-performance liner system provides maximum reliability in critical applications such as ultra deepwater, extended-reach, and sour-gas wells with high pressures and temperatures.
The IntegraLine liner system is comprised of three premium components: the polished bore receptacle, liner-top packer, and rotational hanger. The packer features swage sealing technology that forms an anti-extrusion, gas-tight barrier between the outer diameter of the packer body and the inner diameter of the host casing. This configuration reduces equipment failures that may threaten well integrity, allowing clients to achieve total depth efficiently while withstanding harsh conditions. Alternative components are also available to create a fit-for-purpose liner-hanger solution for specific, complex applications.
“Mitigating risks through the use of reliable technology is crucial to any operation,” said Brent Emerson, Vice President of Well Construction at Weatherford. “We are here to do that for critical wells. Our new IntegraLine system is another step in our continued technology evolution to provide premium solutions to our clients. We offer a comprehensive service from application engineering to the successful installation of liner systems that will ensure well integrity.”
In a gas and condensate well in Alberta, Canada, the IntegraLine liner system with SwageSet packer established a gas-tight seal that enabled fracturing through the liner. Stimulation pressures reached 8,288 psi (57,144 MPa), and the system maintained zero pressure losses throughout the frac application.
SwageSet high-performance polished bore receptacle
Resistant to backoff during vigorous liner rotation
Designed for use with the IntegraLine tieback seal stem, our SwageSet PBR provides a means of tying back into the liner and an extension for setting integral liner-top packers. The PBR houses and protects the running tool assembly during deployment. Using the PBR with a debris-protection system enhances this protection.
The PBR connects directly to the SwageSet packer body for gas-tight, extrusion-resistant performance that eliminates the need for a high-pressure connection seal. The PBR-packer connection forms a hydrostatically locked chamber that prevents the PBR from backing off and makes it well suited for drill-down applications.
Chamfered upper end facilitates liner-top re-entry to minimize the risk of damage to the liner top.
Honed ID provides a reliable seal bore for effective sealing of the PBR and the IntegraLine tieback.
Threaded lower end makes up to the threaded connection with O-ring seals on the SwageSet packer.
Application
- Extended-reach wells x High-angle wells
- Horizontal wells
- HPHT wells
- Ultradeepwater wells
- Carbon dioxide environments
- Hydrogen sulfide environments
SwageSet high-performance liner-top packer
High-performance value in cemented and uncemented liners
An integral component of the IntegraLine liner system, our SwageSet packer provides a high-integrity seal for annular isolation. Our design makes this packer especially effective for drill-down applications: A high-torque connection with seals between the SwageSet PBR and the packer prevents PBR backoff while rotating. The castellated profile provides compatibility with high-torque running tools used to ream or drill liner to depth.
Applying weight to the SwageSet PBR activates the SwageSet packer. Once the set-down weight is transferred, the hold- down slips and the packer element are set. This unique design directs all the available setting force to the element after the hold- down slips are set, thereby retaining the setting force within the element and body- lock rings.
The V0-rated packer is validated for safe operation up to 400 ̊F (204 ̊C) and 12,500 psi (86 MPa) as a standard. Some sizes of SwageSet packers are validated for extended service up to 15,000 psi (103 MPa).
Swage sealing technology swages to casing ID to form an anti-extrusion, gas-tight barrier between the packer body OD and host casing ID.
Aflas elastomers resist swab off to enable high circulation rates past the packer assembly, remove debris during well cleaning, and improve cement quality.
High-torque one-piece mandrel provides superior hydraulic sealing and improved tensile capacity.
Hold-down slips lock the applied setting force to ensure the packer stays set.
XYLAN®-coated cone reduces the setting force required to energize the packing element for such applications as extended- reach wells.
Applications
- Cemented and uncemented liners that need a seal between the liner OD and the host casing ID
- High-pressure environments
- High-temperature scenarios
- High-angle, horizontal, or extended-reach wells
IntegraLine R high-performance rotational hanger
Dependable setting for deep, highly deviated wells
Engineered to meet stringent ISO 14310 V0 criteria, our IntegraLine R high- performance rotational hanger is the first liner hanger tested and qualified to 15,000 psi (103 MPa) at 400°F (204°C). The IntegraLine R hanger suits deep and highly deviated wells, which commonly include high pressures and temperatures.
Differential hydraulic pressure across the hydraulic cylinder activates the IntegraLine R liner hanger. Setting weight sets the hanger, which forces the slips to bite into the host casing. A bearing enables rotation after the hanger is set. For applications that do not require rotation, we offer our IntegraLine S high- performance static hanger, which features a spacer ring rather than a roller bearing.
High-torque, one-piece mandrel meets or exceeds the torque of liner connections.
Heavy-duty bearing enables rotating the liner after setting the hanger and during cementing operations.
Hardened slips have up to 1,000,000 lb (453,592 kg) of hanging capacity to enable setting the liner in even the hardest grades of casing.
Steel shear screws support predetermined pressure settings, even in high temperatures.
Custom-designed seal helps the liner hanger withstand high pressures and temperatures.
Cone-and-slips section protects the slips and optimizes bypass to suit drill-down and liner-reaming applications.
Stroke eliminator prevents the slips from overstroking in worn and oversized well casings.
Select the right product to enhance well integrity
A proper cement job can help ensure zonal isolation and well integrity for the life of the well. Proper casing and liner placement can help increase the effectiveness of this initial protective barrier. After the cement, the liner-top packer creates the next well-integrity barrier, and selecting the optimal liner system can further enhance well integrity.
- Identify drilling challenges and objectives in deepwater, shale, HPHT, and conventional applications.
- Design out risk; design in lower well construction costs and longer productive life.
- Select products and services that meet design requirements with our reliable technology.
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