ISO15156 Hydraulic Control Line 3 / 8 '' OD X 0.065 '' WT Chemical Injection Line

3 / 8 '' OD x 0.065 '' WT Cold Drawn Tube in Coils Hydraulic Control Line for Oil and Gas Wells

Meilong Tube supplies a whole range of hydraulic control line products to the oil and gas sector, and it’s one of our most important markets. You’ll find our high performance hydraulic line tubes successfully used in some of the most aggressive subsea and downhole conditions thanks to our proven track record in meeting the strict quality requirements of the oil, gas and geothermal energy industries.

Improving technology has extended the range of ways in which oil and gas fields can be exploited, and increasingly projects require the use of long, continuous lengths of stainless steel control lines. These are employed in a variety of applications including hydraulic controls, instrumentation, chemical injection, umbilicals and flowline control. Meilong Tube supplies products for all of these applications, and more, lowering operating costs and improved recovery methods for our customers.

Thanks to advances in tubular control line technologies, it is now cheaper and easier to connect downhole valves and chemical injection systems with remote and satellite wells, for both fixed and floating central platforms. We offer coiled tubing for control lines in stainless steel and nickel alloys.

Testing Abilities for Quality of Hydraulic Control Line

We monitor product quality through a rigorous inspection and testing process conducted by our team of highly qualified professionals. The extensive training and experience of Meilong Tube members includes:

Features of Hydraulic Control Line Tubing

Close dimensional tolerances

Considerably enhanced mechanical properties

Superior surface finish

High cleanness of inside surface

Controlled ovality, eccentricity

Typical Hydraulic Control Line Tubing Size

Outside diameter of control lines is mainly 1/4’’ (6.35mm).

Wall thicknesses: 0.035’’ (0.89mm), 0.049’’ (1.24mm), 0.065’’ (1.65mm)

Control line tubing is available in lengths from 400 feet (122 meters) to 32,808 feet (10,000 meters). No orbitally butt welds.

Other specifications (1/8’’ to 3/4’’) are available on request.

Chemical Composition of Stainless Steel 316L

Standard Equivalence

Dimensional Tolerance of 316L Hydraulic Control Line

Meilong Standard

Control Line Tubing Weight per Meter (kg)

Stainless 316L (UNS S31603)

Control Line Tubing Properties

Seam-welded & floating internal plug redrawn tubing. Supplied in the annealed condition

Continuous length without orbital joint welds

Theoretical burst pressure based on minimum wall thickness, and minimum tensile strength

Theoretical collapse pressure based on minimum wall thickness, and minimum yield strength

Pressure rating at 100°F (38°C), neutral and static conditions

Hydraulic Control Line Process and Packing

Seamless: pierced, redrawn, annealed (multi-pass circulation process)

Welded: longitudinally welded (by TIG or Laser beam), redrawn, annealed (multi-pass circulation process)

Packing: Tubing is level wound coiled on the metal / wooden drums or spools.

All drums or spools are packed in wooden crates for easy logistic operation.