Product Details

Integral spiral stabilizer: three and four spiral stabilizer consist of bottom and stem type, the anti-wear materials on the surface usually include Carbide Mosaic column on the surface, Composite inlay diamond on the surface, hardfacing electrode, Low temperature brazing of carbide etc.
Specification:

Bit Dia. (in)	OD (mm)	Dia.of both ends (mm)	ID (mm)	Length (mm)	Connections of both ends
					Stem type		Bottom type
					Top end	Bottom end	Top end	Bottom end
6	152.2	121	51	1200	NC38			3 1/2 REG
6 1/4	158.7
6 1/2	165.1
7 1/2	190.5	159	57	1600	NC46			4 1/2 REG
7 7/8	200
8 3/8	212.7	159 165	71	1600 1800	NC46 NC50
8 1/2	215.2	159 165 178
8 3/4	222.2
9 1/2	241.3	178 197		1600	NC50	NC50	NC50
9 5/8	244.5			1800				6 5/8 REG
9 7/8	250.8
12 1/4	311.2	203 209	76	1800	NC56 6 5/8 REG	NC56 6 5/8 REG	NC56 6 5/8 REG	6 5/8 REG
16	406	229 241.3		2000 2200	NC61 7 5/8 REG	NC61 7 5/8 REG	NC61 7 5/8 REG	NC61 7 5/8 REG
17 1/2	444.5
24	609.6
26	660.4
28	711.2

Product description:
    1. Application: applicable to oil drilling, mud pump drilling riser in the system between the top and the vertical movement of the tap hose as a flexible connection, and is suitable for drilling pump pipe line between the riser and used to adjust the installation error, so that the connection and vibration isolation.
    It Can also be used to transport from rotary drilling equipment under the condition of high pressure large pumping and minimum aniline point is 66 ℃ of water-based or oil-based mud, and can prevent the erosion of hydrogen sulfide, oilfield underground conveying water, oil, mud such as interfaces.
    2, structure: the rubber or stainless steel sheathed inside the tube, carbon fiber reinforced layer, middle layer, steel wire reinforced layer (layer steel chain line enhancement), carbon fiber outer rubber cover.
    3, enhanced products divided into steel wire, steel chain line is enhanced.
    4, executive standard: API Spec 7 k and SY/T 5469-92.