● VIT generally uses double concentric tube, in the two layers of annulus inside pack insulation materials, and the pipe ends sealed to ensure good insulating properties.
● Reduce the heat loss, increase the steam quality and the depth of steam injection.
● During oil production it will provide superior insulation and greatly reduce the loss of heat energy.

Parameter	Model
	139*101	139*88	114*76	114*62	88*50	73*40
Grade of insulating	DE		CDE		BCDE
Length (m)	9.0-10.0
Weight (kg/m)	42.04	40.7	32	28	21	15
Connecting Thread	5-1/2 BCSG	5-1/2 BCSG	4-1/2 BCSG 4-1/2 EUE		3-1/2 USS 3-1/2 EUE	2-7/8 EUE 2-7/8NUE
OD (mm)	139.7	139.7	114.3		88.9	73
ID (mm)	101.6	88	76	62	50.6	40.9
Coupling OD (mm)	154	154	132		108	88.9
Working Depth (m)	MAX. 1600-4600

Coiled Tubing