








Tubing Adapter X-over subs are essential tools for well drilling, designed to facilitate the transition between different connection sizes in a tubing string. They play a vital role in protecting more expensive tubing components and prolonging their lifespan. Tubing X-over subs come in various sizes, weights, lengths, and grades, ensuring flexibility and adaptability in a wide range of drilling operations.
Available in various diameters, weights, lengths, grades, and connection types, Tubing X-over Subs provide an adaptable solution for meeting the unique specifications of any tubing operation. This range enables operators to maintain the integrity of tubing strings across different sections and pressure requirements, ensuring seamless operation and reduced maintenance needs.
Tubing X-over Subs are used for crossing over from the size of a single connection to the other in the tubing string.They are also used for prolonging the life of the more expensive components of the tubing string.
Available in a wide range of sizes, weights, lengths and grades with any combination of connections.
1. Diameters – 2 3/8” to 4 1/2”
2. Weights - As Per API-5CT.
3. Lengths - Any length.
4. Grades - J-55, K-55, N-80, L-80, P-110
5. Connections - EUE, NUE, STC, LTC, BTC
The connections of the X-over Subs are available in the following types of configurations:
Models | Features | |||
2-3/8"EU*2-7/8"EU | 1.External thread 2.Reducing coupling 3. Having Good Sealing Property | |||
2-7/8"NU*3-1/2"NU | ||||
3-1/2"NU*3-1/2"EU | ||||
2-3/8"NU*2-3/8"EU | ||||
2-7/8"NU*2-7/8"EU | ||||
2-3/8"EU*2-7/8"NU | ||||
1. Grade: J55, K55, N80-1, N80-Q, L80, C90, P110 | ||||
2. We also supply permium thread products by customer' s request | ||||
3. Size: tubing coupling from 1.9" to 4-1/2" , Casing coupling fro4-1/2" to 13-3/8" | ||||
4. Type: NU, EU(tubing coupling), STC, LC, BTC(casing coupling). | ||||
5. Surface treatment: Whole phosphating, or inside phosphating and outside coating |
The Tubing Adapter X-over Sub, also known as a crossover sub, is a critical component in well drilling operations, designed to connect different sizes of tubing and enhance the durability of the tubing string. Manufactured using premium alloy steel and subjected to rigorous forging and testing processes, it provides reliable and long-lasting performance under extreme conditions. Its adaptability to various grades, lengths, and connection types makes it indispensable in oilfield applications, ensuring seamless operations and minimizing the wear of high-cost equipment.
The Tubing Adapter X-over Sub serves a vital function in oil well drilling, enabling the crossover between two different connection sizes within a tubing string. This adaptability protects the more expensive elements of the tubing from excessive wear, thereby prolonging their lifespan. Available in a wide range of diameters, grades, and thread types, this tool is engineered for versatility and durability. The material composition, mainly alloy steel (4140), and the forging process ensure that the product is suitable for demanding applications.
The X-over subs can be customized to meet specific
We are a company, which conducts scientific research, development, manufacture, sale and after sale service, is one enterprise for oilfield tool and equipment manufacturer. We cover an area of more than 9000 square meters which manufacture different oilfield products. Our main products include drilling equipment, oil production equipment, oil well service tools. Such as sucker rod, drill pipe, OCTG products, bridge plug. Currently, our products are already exported to North America, South America, Middle East, Middle Aisa, India and other countries and regions. The warranty period of all our products is 18 months.
We have all the quality systems in place for design, planning,manufacturing and quality monitoring & traceability to ensure that River Petro products match the highest quality & reliability Standards similar to any International major in this field.River Petro with perfect attitude, product and service, is going to make further development together with customers at home and abroad .