Project Description
Dual Wall Threaded Drill Pipe
Dual wall—air travels through the annulus & tool joints
Cuttings exhaust through the center
Steel formulated, heat-treated, torqued, and welded for maximum strength
Holte Reverse Circulation Drill Pipe is a one piece, dual tube joint with no center tube connectors or o-rings to replace. We have designed and built many custom variations. All our pipe is made of heavy wall, durable drill steel and formulated and tempered for maximum wear resistance and strength.
Prior to assembly, each joint (Pin and Box) are machined from high strength steel alloy rich in nickel, chrome and molybdenum. They are then heat treated in house in a high carbon atmosphere to approximately 1,700 degrees to develop a file hard surface and tough core. The pins and boxes are then assembled in a unique, proven manner that ensures the ultimate in strength and durability.
| Holte Dual Wall RC Drill Threaded Pipe | |
| Description | Part #: |
| 4" OD x 2" ID Tool Joint OD 4.0" 10' Joint | 101117 |
| Outer pipe is 4" OD x .320" wall | |
| Inner pipe is 2 3/8" OD x .192" wall Weight per joint is 230 lbs | |
| 4" OD x 2" ID Tool Joint OD 4.0" 20' Joint | 101118 |
| Outer pipe is 4" OD x .320" wall | |
| Inner pipe is 2 3/8" OD x .192" wall Weight per joint is 400 lbs | |
| 4-1/2" OD x 2-1/4" ID Tool Joint OD 4.5" 10' Joint | 101119 |
| Outer pipe is 4 1/2" OD x .344" wall | |
| Inner pipe is 2.875" OD x .312" wall Weight per joint is 440 lbs | |
| 4-1/2" OD x 2-1/4" ID Tool Joint OD 4.5" 20' Joint | 101120 |
| Outer pipe is 4 1/2" OD x .344" wall | |
| Inner pipe is 2.875" OD x .312" wall Weight per joint is 530 lbs | |
| 4-1/2" OD x 2-1/4" ID Tool Joint OD 4.5" 30' Joint | 101121 |
| Outer pipe is 4 1/2" OD x .344" wall | |
| Inner pipe is 2.875" OD x .312" wall Weight per joint is 650 lbs | |
| 7" OD x 3.8" ID Tool Joint OD 7: 20' Joint | 101122 |
| Outer pipe is 7" OD x .317" wall | |
| Inner pipe is 4 1/2" OD x .337" wall Weight per joint is 870 lbs | |
| 8-5/8" OD x 4.89" ID Tool Joint OD 8-5/8" 20' Joint | 101123 |
| Outer pipe is 8 5/8" OD x .352" wall | |
| Inner pipe is 4 1/2" OD x .304" wall Weight per joint is 1,192 lbs | |
| Center Tube only with flush inside 20' Length | 101124 |
| and 5-1/2" OD for extending below | |
| the 8-5/8" RC pipe, 360lbs | |
| 9-5/8" OD x 6.25" ID Tool Joint OD 9-3/4" 20' Joint | 101134 |
| Outer pipe is 9-5/8" OD x .352" wall | |
| Inner pipe is 7" OD x .250" wall Weight per joint is 1210 lbs | |
| 10-3/4" OD x 6.25" ID Tool Joint OD 10-3/4" 10' Joint | 101125 |
| Outer pipe is 10 3/4" OD x .375" wall | |
| Inner pipe is 7" OD x .352" wall Weight per joint is ask ART | |
| 10-3/4" OD x 6.25" ID Tool Joint OD 10-3/4" 20' Joint | 101126 |
| Outer pipe is 10 3/4" OD x .375" wall | |
| Inner pipe is 7" OD x .352" wall Weight per joint is 1525 lbs | |
| 10-3/4" OD x 6.25" ID Tool Joint OD 10-3/4" 40' Joint | 101133 |
| Outer pipe is 10 3/4" OD x .375" wall | |
| Inner pipe is 7" OD x .352" wall Weight per joint is 1525 lbs |