Xi'An Tiptop Machinery Co., Ltd.
Xi'an Tiptop Machinery Co., Ltd. Oilfield Comprehensive Solution Provider One-Stop Procurement Service Provider Downhole Drilling Tools Expert
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High Strength Oil Well Drilling Tools API 11B Hollow sucker rods
Introduction:
Hollow sucker rods is a special product used for “hypercoagulabitity,high-viscosity,and high waxy”crude oil in addition to injecting heat carrier (thermal oil,hot water,steam)and chemicals into underground or putting the cable to reduce viscosity and dissolve wax through the center of the rod hole,it can also be adopted into sand cut,Jie salt,small well oil extraction,aying oil extraction,as well as screw pump driving by use the characteristics of strong stiffness and big torque bearing.
Mechanical properties:
| Strength level | Yield strength σs (Mpa) | Tensile strength σb (Mpa) | Elongation δ % | Reduction of area Ψ % | Impact toughness AKJ | Hardness HB |
| Level D | ≥ 590 | 795-965 | ≥ 10 | ≥ 48 | 58.8 | 273-291 |
| Level HL | ≥ 795 | 965-1195 | ≥ 10 | ≥ 45 | - | 291-332 |
