Blast Joint is used to protect the tubing string from the abrasive action of
flowing gas or oil when positioned opposite the perforations. It may also be
used directly below the well head to protect from the abrasion of doing a
hydraulic fracturing operation down the annulus.
Blast Joint is made from high quality alloy steel to ensure maximum abrasion
resistance and strength. For H2S service the Blast Joint is available heat
treated to between 18 and 22 RC Hardness as per NACE Specification
MR-01-75.
Full tubing I.D. is maintained through the Blast Joint with the O.D. the same as
tubing couplings. As standard it is available in API tubing connections. Most
tubing connections can be supplied, however, I.D./O.D. dimensions may vary
depending on the tubing connection and tubing weight.
Blast Joint is available in lengths of .6m(2 ft.), 1.2m(4 ft.), 1.8m(6 ft.), 2.4m(8ft),
3m(10ft.) and 6m(20ft.).

Size	OD Inch	IDi nch	Length (FT)	Pressure
2-3/8” 4.6 PPF	2.707	1.995	As Require	10,000 Psi
2-3/8” 4.7 PPF	3.063	1.995	As Require	10,000 Psi
2-7/8” 6.4 PPF	3.240	2.441	As Require	10,000 Psi
2-7/8” 6.5 PPF	3.668	2.441	As Require	10,000 Psi
3-1/2” 9.2 PPF	3.900	2.992	As Require	10,000 Psi
3-1/2” 9.3 PPF	4.500	2.992	As Require	10,000 Psi
4-1/2” 12.60 PPF	4.892	3.958	As Require	10,000 Psi
4-1/2” 12.75 PPF	5.563	3.958	As Require	10,000 Psi
5-1/2” 17 PPF	6.050	4.892	As Require	10,000 Psi
7.00” 29 PPF	7.658	6.184	As Require	10,000 Psi