Cold Drawn Welded Oil And Gas Stainless Steel Coiled Tubing

Cold drawn welded hydraulic control line tube for oil and gas

TIPTOP manufactures precision control line tubing for hydraulic and chemical injection of onshore and subsea oil and gas wells. The control line tubing is manufactured in a number of different product forms including seam welded and redrawn, seam welded and floating plug redrawn and seamless depending on the customer’s specification and application.

Cold drawn welded control line tube,Coiled seam welded pressure tubing in the heat treated condition is typically used in oil and natural gas wells for applications including hydraulically actuated surface-controlled subsurface ety valves, chemical injection, and instrumentation. In such applications, it is commonly referred to as control line tubing.

The tubing is generally deployed by strapping it to the outside of the production casing. It may be encapsulated and can be included along with other pressure tubing or TEC and mechanical components, such as bumpers, within a flatpack. The tubing is frequently supplied as 5000 ft to 35000 ft. coils on a wooden or steel reel, depending on size.

MANUFACTURING PROCESS AND RESULTANT PROPERTIES

The desired sizes are obtained by repeat cold drawing process, any welded joints are not acceptable in each one coil ranging from 0.125 inch to 1 inch O.D. (3.2 mm to 25.4 mm) and a variety of wall thicknesses.

The strip is formed into a tubular cross section and longitudinally seam welded using either the gas tungsten arc (GTAW). The tubing may be welded at a larger outside diameter, sunk to final size and subsequently heat treated. Heat treated tubing is one continuous length of tubing, completely free of any welded joints or seams. Each coil is 100% hydrostatic tested.

NONDESTRUCTIVE TESTING (NDT)

Eddy current testing (ECT) is performed on the longitudinally seam welded tubing. Radiographic testing and ECT are performed on material in the final heat treated condition. Yield pressure hydrostatic testing is performed on the heat treated tubing at final size.

Size chart:

Chemical Composition :

The length can be customized according to request!

With the leading direction of producing High pressure extra long stainless steel control line tube(stainless steel coiled tubes), TIPTOP has become a high-tech industrial company integrating domestic research and development, production and sales. The company successfully developed a series of stainless steel testing cables in 2000. In recent years, the company has been committed to the research and development of duplex steel and nickel alloy control lines, and has been widely approved in the international market.

The company covers an area of 20,000 square meters and a building area of 12,000 square meters. The company has several stainless steel tube production lines, tube making units, tube drawing units, well-type electric furnaces, online vacuum light furnaces and other production equipment. The company also has a quality inspection center that meets the national stainless steel tube quality inspection requirements. The quality inspection center has a 300Mpa hydraulic test machine, tensile test bench, Vickers hardness tester, 500°C temperature resistance test furnace, eddy current flaw detector and a series of stainless steel products. Testing and inspection equipment to ensure the reliability and stability of the chemical and physical properties of stainless steel products.　

The company annually produces more than 3,000 tons of stainless steel control lines and other products, sales marked covers both domestic and overseas, for domestic, we are network-enterprise company of CNOOC, Petro China and Sinopec, as for international,it has been widely used in Middle East, Southeast Asia, South America, Australia and so on.　

On the premise of improving the quality of its own brand products, the company has continuously increased the research and development of new products, and has cooperated and actively invested with many domestic universities and scientific research institutions. In recent years, the company has passed the certifications of CCS, GL, DNV and other classification societies.

With our support,you will have:

1. Technical data, technical guidance and training for free
2. Professional engineer to the site for tracking service
3. "just-in-time supply"(that is, supply at any time according to the actual demand of customer), in this way customers achieve zero inventory, maximize profits.
4. Most favorable offer,we take "taking small profits" as the principle.
5. 100% qualified product,Our company will strictly follow the requirements of relevant technical standards , grasp various links of production, and ensure product performance .
6. sufficient after sales services.

We are looking forward to developing business with friends from home and abroad on the basis of equality and mutual benefits!welcoming your enquiries!