Main Products: drilling equipment;Wellhead equipment;Handing tools
API Spiral Grooved Drill Collar for Oil Well Drilling, Oil Country Tublar Goods
Negotiable /Piece
Min.Order:1 Piece
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TOPLAND OILFIELD SUPPLIES LTD.
Business license
Business Type: Distributor/Wholesaler
Shanghai ChinaMain Products: drilling equipment;Wellhead equipment;Handing toolsProduct Details
This type of drill collar is made of 4145H or 4145H modified alloy steel and has spiral grooves on the pipe body of drill collar. This will decrease the surface area contacted with the hole of the oil well, which will greatly reduces the probability of pressure differential detention occurring.
Grooved Drill Collar
OD Range (in) | 4-4 3/8 | 4 1/2-5 1/8 | 5 1/4-6 3/8 | 6 1/2-7 | 7 1/8-7 7/8 | 8-8 7/8 | 9-9 7/8 |
Depth of cut (in) | 6 2/3 ± 1/32 | 7/32 ± 1/32 | 1/4 ± 1/32 | 5/16 ± 1/16 | 11/32 ± 1/16 | 3/8 ± 1/16 | 13/32 ± 3/32 |
Spiral Pitch (in) | 36 ± 1 | 38 ± 1 | 42 ± 1 | 42 ± 1 | 64 ± 1 | 68 ± 1 | 72 ± 1 |
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