The 4 ½ x 2 7/8” Tubing Hanger Coupling is a specialized connection component used in oil and gas wellhead systems to join two different sizes of upset tubing—4 ½-inch and 2 7/8-inch. This size combination is commonly selected when there is a need to transition from a wider tubing hanger profile to a smaller production string, without significantly restricting flow or compromising mechanical strength. The slightly larger 2 7/8” production tubing allows for greater internal flow area than smaller alternatives, making this configuration well-suited for completions that aim to support moderate to high production rates.

The coupling is designed with a union nut mechanism, which enables installation without rotating the Christmas tree or disturbing other surface equipment. This simplifies operations, especially in space-limited or sensitive surface environments. Both the top and bottom threads of the coupling can be manufactured to meet specific customer requirements, ensuring compatibility with a range of tubing string designs. Additionally, the coupling is threaded to accommodate a back pressure valve, offering an important safety feature by allowing well pressure to be managed during maintenance or pressure control procedures.

Constructed from high-grade steel and compliant with API standards, the 4 ½ x 2 7/8” Tubing Hanger Coupling offers high durability, corrosion resistance, and the mechanical integrity required for challenging downhole conditions. By supporting a secure, pressure-tight connection between tubing sizes, it plays a key role in maintaining well integrity and operational efficiency in various oil and gas production scenarios.

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

The 4 1/2" Surface-Controlled Subsurface Safety Valve (SCSSSV) is selected for wells that require dependable emergency shut-in capability while handling moderate to high flow rates. This size is appropriate when production demands a larger flow area to minimize pressure drop and maintain efficient fluid flow. It provides essential well control by automatically isolating the wellbore in cases of equipment failure or loss of surface control pressure, ensuring safety without compromising production efficiency.

This SCSSSV is designed for compatibility with 4 1/2" (114.3 mm) tubing and is available with landing nipple seal bores of 3.437", 3.688", or 3.813". It supports working pressures up to 5,000 psi and comes with internal valve bore options of 1.75", 1.87", and 2.12"—allowing operators to balance flow capacity with safety requirements.

The self-equalizing mechanism minimizes differential pressure across the valve during opening, improving control and reducing mechanical wear. With sealing surfaces located outside the flow path in the open position, the valve is less susceptible to erosion and damage during production.

Constructed with a robust flapper made from bar stock, the valve features a flapper-type mechanism that reliably closes to prevent uncontrolled flow. The valve is wireline retrievable, which allows for extraction and servicing of major components without removing the entire tubing string. This capability reduces intervention time and operational costs, contributing to overall well uptime and efficiency.

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

The 2 7/8" Surface-Controlled Subsurface Safety Valve (SCSSSV) is designed to shut in a well to prevent uncontrolled flow caused by equipment failure or damage. It is installed in the upper wellbore to provide emergency closure of the production tubing, isolating the wellbore if there is a failure in the surface production control system or downhole equipment.

The valve operates on a fail-safe principle, closing automatically when control pressure is lost. It features a flapper-type mechanism and is surface-controlled through hydraulic pressure. The design is self-equalizing, which helps maintain pressure balance across the valve during shut-in and restart, ensuring consistent performance.

This valve is wireline retrievable, meaning it can be removed or serviced without pulling the entire tubing string, reducing well intervention time. It is compatible with landing nipples having seal bore diameters of 2.125", 2.188", or 2.313", allowing flexibility in well design.

The valve is rated for working pressures up to 5,000 psi and offers internal flow passage options of 0.81" or 1.12". The sealing surfaces are located outside the flow path when the valve is open, minimizing erosion and wear. The flapper is made from solid bar stock to provide mechanical strength and durability.

This configuration is commonly applied in wells where emergency shut-in is necessary and regular maintenance without tubing retrieval is preferred.

The 2 9/16” 10M Coiled Tubing Hanger is used to suspend coiled tubing during well intervention and workover operations in high-pressure environments. It is rated for a working pressure of up to 10,000 psi and is typically installed as part of the wellhead assembly to maintain well control during live operations.

Coiled tubing (CT) is a continuous length of small-diameter steel pipe deployed into a well without the need for threaded connections. It allows operators to perform various tasks—such as cleaning out debris, stimulating production zones, or running diagnostic tools—without removing existing production tubing. This makes CT a common method for non-invasive well maintenance.

The hanger supports coiled tubing sizes from 1” to 1¾” outer diameter. It connects to the surface system using standard API 6B or 6BX flanges. A wireline entry sub is included, which serves two functions: it guides wireline tools into the tubing and provides a secondary annular seal to help control pressure and prevent tubing movement.

This component is part of the broader coiled tubing unit and is required to safely manage tubing and tool access while maintaining pressure integrity. It is typically used in wells where continuous intervention work is needed without shutting in the well, especially in high-pressure or deeper formations.

The 4” Tubing End Locator is designed specifically for use with larger production tubing strings common in wells that require greater flow capacity or enhanced mechanical strength. This size is typically found in wells with higher production rates or more demanding operational requirements, where accurate depth confirmation becomes even more critical.

This model is specifically sized for 4-inch outer diameter tubing, featuring a maximum outside diameter that fits comfortably within the tubing’s internal dimensions. This sizing ensures that the locator can move smoothly without obstruction while maintaining effective contact to detect the tubing end. The core mechanism involves a spring-loaded finger that extends outward upon contacting the tubing bottom. This movement translates into a tactile signal felt at the surface, eliminating the need for complex electronic systems and reducing the risk of failure in harsh downhole environments.

Equipped with standardized threaded connections—commonly a 1-9/16 - 10 UN pin on the top and a 1 - 11 ½ NPT box on the bottom—the tool integrates easily into typical slickline, wireline, or coiled tubing toolstrings. The fully mechanical design enhances reliability, making it well-suited for use in conditions of high pressure, elevated temperatures, and corrosive fluids often found in oil and gas wells.

The 4” Tubing End Locator is especially valuable in wells with larger tubing sizes where accurate depth confirmation is critical to avoid operational errors. By providing a straightforward and dependable method to locate the tubing end, it supports safe and efficient well intervention, helping to reduce downtime and operational risks.