Crossover Tubing from 3 1/2 inch JFE Bear to 2 3/8 inch Hydril 533 is a single-piece connector used to join two different types of tubing in oil and gas wells. It allows a larger 3 1/2 inch JFE Bear tubing to be connected to a smaller 2 3/8 inch Hydril 533 tubing, enabling a safe and reliable transition between tubing strings of different sizes and connection types.

The JFE Bear connection is used on the larger tubing because it is designed to handle high loads, with metal-to-metal sealing and a 15° internal torque shoulder that ensures a secure, leak-resistant joint under high pressure or tension. Its negative load flank thread and coupled design provide full tensile efficiency, which is important for tubing that must carry the maximum expected loads in the well.

The Hydril 533 connection is commonly used on smaller tubing because it provides a strong, reliable seal in a compact design. By combining these two connections, operators can safely link tubing strings with different performance characteristics: the JFE Bear provides strength where it is needed most, and the Hydril 533 ensures a consistent, leak-resistant connection on the smaller section.

The crossover tubing is made from seamless steel and is fully licensed to API standards (API 5CT, API 7, ISO 9001, API Q1). It is designed and tested to withstand high pressures and torque, ensuring reliability during installation and operation.

The combination of JFE Bear and Hydril 533 connections is chosen to take advantage of the strengths of each type. JFE Bear is used on the larger tubing because it provides high load capacity, metal-to-metal sealing, and full tensile efficiency. Hydril 533 is used on the smaller tubing because it maintains a reliable seal and resists torque and pressure in a compact design. Together, they allow tubing strings of different sizes and performance characteristics to be joined safely and efficiently, ensuring both strength and leak protection throughout the connection.