Vacuum Insulation Tubing & Casing

Shengji owned 2 seamless steel pipe production lines, 3 VIT tubing production
lines, 7 tubing & casing processing lines and 2 steel pipe upsetting lines.
The annual production reaches 1 million meters.

The products have been provided in many oilfields of China and exported to
Canada, Oman, Kazakhstan and etc. In Shengli Oilfield, market share of SJ Vacuum
Insulated Tubular exceed 80% in 3 years.

Key Feature

1. For conventional thermal recovery under 380℃ and supercritical environment
of 400℃

2. Well depth can reach 1500 meters

3. With good quality control system, 85% of grade E, and the rest are grade
D.

4. Been sold to Canada, Kazakhstan, Oman.

5. Internal connection, External connection and Direct connection

6.Stable and reliable in quality. Defect detective 100% before delivery.

Insulation Type

Shengji Vacuum Insulated Tubular has A variety of heat insulation materials,
currently mainly used aerogel and Gridding Cloth Aluminium Foil.

aerogel is a nanoporous solid state material. Because of its low density,
aerogel is known as the lightest solid material in the world. Aerogels have
outstanding properties in thermal, acoustic, optical and mechanical fields due
to its fine nano porous structure and large surface area. Aerogel insulation
felt is made of special fiber yarn as the base material, and is prepared by nano
composite process. It is mainly used for thermal insulation of heavy oil high
temperature steam injection pipeline and the insulation of the refinery device
medium pipeline. The general temperature is between 200 ~500℃. Aerogel products
are light and have excellent hydrophobicity, hydrophobicity rate is more than
98% and pH value is neutral. It will not corrode the heat preservation pipeline,
thus prolonging the service life and reducing the later maintenance cost.

Date sheet

Vacuum Insulation Tubing and Casing
No.	Spec		Key Parameters							Service Parameters
	Spec		Thermal Conductivity	Tensile Strength at Room Temperature	Internal Pressure		Collapse Resistance		straightness	Well Depth	Work Temperature		Casing
	OD*ID	OD*ID	Thermal Conductivity	Tensile Strength at Room Temperature	Room Temp.	Steam Injection	Room Temp.	Steam Injection	straightness	Well Depth	Regular	Over	Casing
	mm*mm	in*in	W ( M ℃)	KN	MPa	MPa	MPa	MPa	%	meter	℃	℃	in
1	89*50	3 1/2* 2 3/8	0.002-0.08	432	32	20	30	28	≤0.2	≤1500	350	380	5
2	114*62	4 1/2*2 7/8	0.002-0.08	506	32	20	26	24	≤0.2	≤1500	350	380	7
3	114*76	4 1/2*3 1/2	0.002-0.08	537	32	20	26	24	≤0.2	≤1500	350	380	7
4	127*76	5*2 7/8	0.002-0.08	615	32	20	23	21	≤0.2	≤1500	350	380	9 5/8
5	177*101	7*5 1/2	0.002-0.08	780	32	17	22	17	≤0.2	≤1500	350	380

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