G105 Oil Well Drill Pipe for Sale

Drilling pipe specification:

1. Size: 2 3/8", 2 7/8", 3 1/2", 4", 4-1/2", 5", 5-1/2"
2. Grade: E75, X95, G105, S135
3. Operative Standard: API SPEC 5D, API SPEC 7.
Drilling pipe application:
Widely used for oil well and water well and other industrial.
Drilling pipe types:
According to T6194 SY / 96 "oil casing" points short thread casing and coupling and long thread casing couplings.
Drilling pipe specifications and appearance quality:
(1) according to domestic casing SY/T6194-96 regulations, casing length, its scope uncertain feet 8 to 13 m. But not less than 6 m casing can provide, the amount shall not exceed 20%.
(2) the internal and external surface casing shall not fold, hair grain, overburden bed separation grouting, crack, rolling fold and scarring. These defects shall be completely remove, clear the depth may not exceed 12.5% of the nominal thickness.
(3) the surface not couplings have folded, hair grain, overburden bed separation grouting, crack, rolling fold, scarred and other defects.
(4) the casing couplings and surface should be smooth and thread, does not allow to have the burr, tear and enough to make thread interrupt influence strength and the other is closely connected to the defects.