Available sizes: 2 3/8”, 2 7/8”, 3 1/2”, 4”, 4 1/2”, 5”, 5 1/2'” and 7”.

The 5 1/2" Surface-Controlled Subsurface Safety Valve (SCSSSV) serves a critical safety function by enabling rapid well shut-in if uncontrolled flow occurs due to equipment malfunction or damage. Positioned in the upper section of the wellbore, this valve acts as a barrier to isolate the production pathway, helping to prevent uncontrolled release of fluids and protect personnel, equipment, and the environment.

Its fail-safe design means that any loss of control pressure or system failure causes the valve to close automatically, ensuring well integrity even in emergency situations. The valve uses a wireline-retrievable flapper mechanism that is surface-controlled, allowing operators to maintain or replace key components without pulling the tubing string—significantly reducing downtime and operational costs.

Engineered for wells utilizing 5 1/2" (139.70 mm) tubing, this valve fits landing nipples with a 4.562” seal bore and supports working pressures up to 5,000 psi. The internal valve diameter of 2.38” is designed to balance flow efficiency and tool passage capability. Additionally, by positioning the sealing surfaces outside the flow path when open, the valve minimizes wear caused by erosive fluids, enhancing durability and service life.

This SCSSSV provides a reliable, maintainable solution for well control in demanding operational environments, combining robust construction with practical features to support continuous production and rapid emergency response.

The 4 ½” x 2 3/8” tubing hanger coupling is a specialized downhole component designed to connect two different sizes of upset tubing within a wellhead assembly. Upset tubing refers to tubing that has thicker, reinforced sections at the ends—called “upsets”—which strengthen the threaded connections and help withstand the mechanical stresses and high pressures encountered during well operations. This coupling provides a secure and pressure-tight transition between a larger 4 ½-inch tubing hanger and a smaller 2 3/8-inch production tubing string, enabling effective management of wellbore fluids and maintaining pressure containment.

Engineered to integrate seamlessly with tubing hanger spools, wrap-around tubing hangers (PTHSW), and ‘PTHS’-type tubing spools, this coupling forms part of a modular wellhead completion system. Its union nut design allows installation by screwing the coupling in place without rotating the Christmas tree, simplifying assembly and reducing the risk of damage during installation.

Both the top and bottom ends of the coupling are threaded to customer specifications, offering flexibility for various well configurations and allowing the installation of back pressure valves to maintain well control during operations. Manufactured to API standards and constructed from high-grade materials, the coupling delivers durability and reliable performance in demanding downhole environments characterized by high pressure, temperature, and corrosive fluids.

By facilitating a smooth and strong size transition between different tubing strings, the 4 ½” x 2 3/8” tubing hanger coupling supports well integrity, operational efficiency, and safety throughout oil and gas production.

Available sizes: 2 3/8”, 2 7/8”, 3 1/2”, 4”, 4 1/2”, 5”, 5 1/2'” and 7”.

The 4-inch Surface-Controlled Subsurface Safety Valve (SCSSV) is designed for installation in wells with 4-inch production tubing and serves as a critical safety device to shut in the well during uncontrolled flow events caused by equipment failure or loss of surface hydraulic control pressure. The valve operates via a hydraulically actuated flapper mechanism that remains open under normal operating pressure but closes automatically if the hydraulic signal is lost. This fail-safe design isolates the wellbore, preventing unintended release of hydrocarbons and protecting both personnel and the environment.

The flapper mechanism is simple and robust, minimizing moving parts in the flow path and reducing potential points of failure. When open, the sealing surfaces are positioned out of the fluid flow path, which helps maintain smooth production flow and reduces wear on sealing components. The valve’s hydraulic actuation allows reliable operation under varying pressure and flow conditions commonly encountered in oil and gas wells.

The valve is wireline retrievable, which means it can be removed, serviced, or replaced using wireline tools without the need to pull the entire tubing string from the well. This capability significantly reduces well intervention time and associated costs while allowing maintenance or upgrades to be performed efficiently.

This SCSSV fits standard landing nipples with a seal bore of 3.313 inches and is rated for working pressures up to 5,000 psi. Its internal valve diameter is 1.75 inches, providing an appropriate balance between flow capacity and structural integrity for wells with moderate to high flow rates. The 4-inch tubing size is common in many oil and gas production wells, making this valve size versatile across different field conditions.

This size is commonly applied in production wells where 4-inch tubing is standard, supporting reliable well control and efficient maintenance. Its hydraulic surface control and simple flapper design contribute to dependable operation under varying well conditions.