Model SSD & SSU Sliding Sleeve
The Model SSD and SSU Sliding Sleeves are communication devices designed to facilitate controlled circulation and selective zone production or injection between the annulus and tubing through a ported inner sleeve. Both models are constructed from chemically inert, non-elastomeric thermoplastic materials, providing exceptional durability and reliability in high-temperature and harsh well environments.
The Model SSD features a shift-down-to-open mechanism, while the Model SSU offers a shift-up-to-open design. These differing operational methods provide flexibility, allowing operators to select the optimal mechanism based on specific well conditions and operational requirements. Both models are compatible with standard wireline single or selective shifting tools, ensuring ease of operation and precise control.
To protect the seal units, the SSD and SSU are equipped with equalization ports that allow gradual pressure equalization between the casing annulus and tubing string during high-pressure differential scenarios. Additionally, a redundant protection ring is incorporated in both models to enhance seal protection and durability.
Versatility is a key attribute of the SSD & SSU Sliding Sleeve, as it can be configured with various nipple locking profiles and a lower honed seal bore, facilitating integration with other intervention tools such as separation tools, packoffs, and blanking plugs. This adaptability ensures the SSD can meet diverse operational requirements. Engineered to withstand differential pressures up to 10,000 psi (68.9 MPa) and service temperatures up to 350°F (177°C), the SSD offers a robust solution for challenging well conditions. The internal sleeve shifting force varies from 500 lbs to 700 lbs (227 kg to 318 kg), depending on the desired size of the sliding sleeve, ensuring flexibility in design and application.
Key Features & Benefits:
- Fewer leak paths by locating housing connections between seal units, eliminating the need for metal-to-metal seals or O-ring connections
- Dedicated slots to permit gradual equalization in order to protect seals against damage due to sudden rush of fluid
- A seal unit protection ring is incorporated between the upper seal unit and milled slots to protect the seals from the rush of passing fluid during sleeve opening
- Seal units are made from chemically inert non-elastomeric compounds for harsher environments
- Variety of nipple profiles may be configured to accept other intervention tools
