FEP Encapsulated Incoloy 825 Control Line Tubing

Short Description:

A downhole safety valve that is operated from surface facilities through a control line strapped to the external surface of the production tubing. Two basic types of SCSSV are common: wireline retrievable, whereby the principal safety-valve components can be run and retrieved on slickline, and tubing retrievable, in which the entire safety-valve assembly is installed with the tubing string. The control system operates in a fail-safe mode, with hydraulic control pressure used to hold open a ball or flapper assembly that will close if the control pressure is lost.

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Product Introduction

The tubing products for the oil & gas sector have been successfully applied in some of the most aggressive subsea and downhole conditions and we have a long proven track record of supplying products that meet the strict quality requirements of the oil and gas sector.

Meilong Tube offers coiled tubing in a wide range of corrosion resistant stainless steels, nickel alloys. We have extensive experience in product supply and innovation in this sector, from the technological advances required for subsea developments in the 1999 to the deepwater challenges of today.

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FEP Encapsulated Incoloy 825 Control Line Tubing (3)

FEP Encapsulated Incoloy 825 Control Line Tubing (2)

Chemical Composition

Incoloy 825
Nickel	Chromium	Iron	Molybdenum	Carbon	Manganese	Silicon	Sulfur	Aluminum	Titanium	Copper
%	%	%	%	%	%	%	%	%	%	%
		min.		max.	max.	max.	max.	max.
38.0-46.0	19.5-23.5	22.0	2.5-3.5	0.05	1.0	0.5	0.03	0.2	0.6-1.2	1.5-3.0

Norm Equivalence
Grade	UNS No	Euro norm
Grade	UNS No	No	Name
Alloy	ASTM/ASME	EN10216-5	EN10216-5
825	N08825	2.4858	NiCr21Mo

Dimensional Tolerance

ASTM B423 / ASME SB423, Incoloy 825, UNS N08825
Size OD	Tolerance OD	Tolerance WT
1/8’’≤OD<3/16’’ (3.18≤OD<4.76 mm)	+0.003’’ (+0.08 mm) / -0	±10%
3/16≤OD<1/2’’ (4.76≤OD<12.7 mm)	+0.004’’ (+0.10 mm) / -0	±10%
1/2’’≤OD≤1’’ (12.7≤OD≤25.4 mm)	+0.005’’ (+0.13 mm) / -0	±10%

Meilong Standard
Size OD	Tolerance OD	Tolerance WT
1/8’’ ≤OD<3/16’’ (3.18≤OD<4.76 mm)	+0.003’’ (+0.08 mm) / -0	±10%
3/16≤OD<1/2’’ (4.76≤OD<12.7 mm)	+0.004’’ (+0.10 mm) / -0	±10%
1/2’’≤OD≤1’’ (12.7≤OD≤25.4 mm)	+0.004’’ (+0.10 mm) / -0	±8%