GET STRONG, RELIABLE LINES FOR CONTROL AND INJECTION
IN DIFFICULT DOWNHOLE COMPLETIONS

NOVOMET » Products and Services » Well Completions » Flow Control » Hydraulic Control Line

HYDRAULIC CONTROL LINE

The hydraulic control line, also known as a chemical injection line, is a small-diameter line, usually ⅛ in. (32 mm) or ⅝ in. (16 mm), used to execute tool recovery, perform chemical injection, and operate downhole completions equipment such as surface-controlled subsurface safety valves (SCSSV). When used with an SCSSV, the hydraulic control line maintains constant pressure to keep the safety valve open. If a leak occurs, pressure in the control line drops, enabling the safety valve to snap closed and prevent low of well control.

Strong, corrosion-resistant, and reliable, these lines meet all ASTM standards and operate effectively in difficult environments to maintain production flow. Lines are pressure-tested and certified before deployment. They are available for any length well.

BENEFITS

Maintain fluid flow in harsh environments

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Safely operate downhole completion equipment to maintain optimal flow in challenging environments

Reduce intervention costs

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Keep up performance and avoid costly interventions in difficult wells and tool recovery operations

Extend well life

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Strong, virtually seamless lines exploit the most difficult conditions to maximize production

applications

Subsea and downhole applications
Harsh environments, such as high-pressure, high-temperature (HPHT) wells and corrosive conditions
Tool recovery operations
Chemical injection
Annular gas venting
Capillary pressure monitoring

capabilites

Control of subsurface safety valves
Hydraulically controlled sliding sleeves

features

Lines are welded and drawn to homogenize the seam weld for a better sealing surface, rounder OD, and an mproved external surface finish
Orbital welds are used to join lengths of seamless coil to achieve smooth, strong tube lengths suitable for any well application
Seamless tubing for orbital welds is also available

SIZES AVAILABLE

TUBE MATERIALS

316L Stainless steel
A825 Alloy
A825 Alloy enhanced properties
Duplex 2205/2507
Alloy 625

AFTER WELDING

After welding, the line is drawn through a reduction die and reworked externally to homogenize the seam weld. By drawing through a die, the line has an improved sealing surface, a truly round OD, and an improved external surface finish. A metal billet is extruded into a tube and drawn to finished size. Strong, error-free orbital welds join the lengths of seamless coil together for the desired tube lengths.

OTHER SIZES

Other sizes and options can be requested.

⅛ in.	0.125 x 0.028 in. (3.18 x 0.71 mm)
⅛ in.	0.125 x 0.035 in. (3.18 x 0.89 mm)
¼ in.	0.25 x 0.035 in. (6.35 x 0.89 mm)
	0.25 x 0.049 in. (6.35 x 1.25 mm)
	0.25 x 0.065 in. (6.35 x 1.65 mm)
⅜ in.	0.375 x 0.035 in. (9.53 x .89 mm)
	0.375 x 0.049 in. (9.53 x 1.25 mm)
	0.375 x 0.065 in. (9.35 x 1.65 mm)
½ in.	0.5 x 0.049 in. (12.7 x 1.25 mm)
	0.5 x 0.065 in. (12.7 x 1.65 mm)
	0.5 x 0.083 in. (12.7 x 2.11 mm)
⅝ in.	0.625 x 0.049 in. (15.88 x 1.25 mm)
	0.625 x 0.065 in. (15.88 x 1.65 mm)
	0.625 x 0.083 in. (15.88 x 2.11 mm)

PARAMETER GUIDE

	½ in. (12.7 mm) THREAD DOWN	1 in. (25.4 mm) THREAD DOWN
General Information
Product functionality	Annular Vent Valve	Annular vent valve
Conveyance method	Mounted on ESP Packer	Mounted on ESP packer
Materials	AISI 4140 (80Ksi, 22HRC Max.)	AISI 4140 (80Ksi, 22HRC Max.)
Service	NACE MR0175 / H2S15156	NACE MR0175/H2S15156
O-ring material	HNBR / VITON	HNBR/VITON
Upper connection	¼ in. (6 mm) NPT Box	¼ in. (6 mm) NPT Box
Lower connection	½ in. (12.7 mm) NPT Box	1 in. (25.4 mm) NPT Box
Performance Data
Pressure rating, internal	5,000 psi (352 kg/cm)	5,000 psi (352 kg/cm)
Minimum internal flow area	0.196 in.²(5 mm²)	0.196 in.²(5 mm²)
Start to open pressure	2,600 psi (183 kg/cm) +/- 10%	2,600 psi (183 kg/cm) +/- 10%
Fully opened pressure	3,000 psi (211 kg/cm) +/- 10%	3,000 psi (211 kg/cm) +/- 10%
Fully closed pressure	1,000 psi (70.32 kg/cm) +/- 10%	1,000 psi (70.32 kg/cm) +/- 10%
Maximum OD	1.6 in. (41 mm)	1.6 in. (41 mm)
Approximate overall length	24 in. (610 mm)	24 in. (610 mm)
Temperature rating	122–257°F (50–125°C)	122–257°F (50–125°C)