Flow Control Equipment Manufacturer | Sleeves & Nipples | Maximus OIGA

Flow control equipment is the family of downhole devices that manages communication between production tubing and the casing annulus, controls inflow from individual reservoir zones, and enables intervention operations like well kill and fluid displacement. The core product families are circulating sleeves, sliding sleeves (also called SSDs), landing nipples, lock mandrels, and equalizing check valves. Precise flow control determines whether a multi-zone well produces as designed or suffers crossflow, premature water and gas breakthrough, and lost production. SpectraMax flow control covers all of these families under a single quality system.

A sliding sleeve — also called a sliding side door, or SSD — provides on-demand communication between production tubing and the casing annulus. A three-position collet holds it open, equalizing, or closed; wireline and a B-type shifting tool handle actuation. Applications include well kill before workover, gas-lift equalization, selective zone production, and landing blanking plugs for tubing tests. SpectraMax sliding sleeves are available with selective and no-go lock profiles in both Otis and Baker patterns.

Both open ports between tubing and annulus, both use a Model B wireline shifting tool, and both stay permanently in the completion string — but they are optimized for different intent. Circulating sleeves handle fluid displacement during completion and intervention; sliding sleeves handle selective zone production and long-term flow management. A standard multi-zone configuration uses one circulating sleeve at depth for kill and displacement, plus one sliding sleeve per producing zone.

Standard SpectraMax configurations in common tubing sizes and sweet-service materials (AISI 4140) follow a tighter shop schedule than custom builds. Sour-service grades (13Cr, 9Cr-1Mo, Inconel) and non-standard sizes go through pre-order engineering review to confirm material grade against well conditions. Material test reports and certificates of conformance accompany every shipment. For confirmed lead times against specific tubing size, working pressure, temperature, and service category, send well-condition details through the enquiry form.

Yes — compatibility with Otis and Baker patterns is the default. SpectraMax sliding sleeves are available in both configurations. Landing nipples cover the F selective profile, the X and XN standard-weight profiles, the R and RN heavy-weight profiles, and the RPT positive-location no-go system. Lock mandrels are profile-matched to engage F, X, XN, R, RN, and RPT grooves. No proprietary tools — standard wireline service tools, including the B-type shifting tool and slickline locks, operate the equipment.