API 7K Oil Gas HDS HDP Heavy Type Roller Kelly Bushing
HDP Heavy Type Roller Kelly Bushing for Oil and Gas
Product Interview
Kelly roller bushing includes square drive and four-pin drive: it is applicable to the ZP175-ZP375 rotary table and to 3 1/2” – 6” square and hexagonal kelly’s of different sizes. The design and fabrication conforms to API Spec. 7K and SY/T5080 as well as other technical standards and the special structural design can facilitate the change and adjustment of the roller.
Roller Kelly bushing is a necessary tool tor drilling, by matching with the rotary square to drive Kelly pipe. The product can reduce its friction with Kelly by rotation of four rollers and extend its service life .Change different rollers to match with different square and hexagonal Kelly pipes and connect with different rotary tables .Two transmission styles(square and pin connect)are available. The product is designed and manufactured according to API Spec 7k”Specification for Drill Equipment".
Main Benefits of Oilfield Roller Kelly Bushing
- Pulling out or feeding off string can be done while rotating
- The bushing is easily installed into the master bushing, maintaining good alignment;
- Two transmission styles (square and pinconnect) are available.
- Through the rotation of four rolls, the friction between rolls and kelly pipes is reduced to extend service life.
- Because of its intergral construction, it can not fly out and hurt you.
- The contact between Kelly and roller is rolling contact, so friction is lower, and weight on bit is accurate.
Technical Parameters of Our Oilfield Roller Kelly Bushing
| Model | Type | Way of Drive | Square(in) | Hex(in) |
| HDS | Heavy | Square Drive | 3-6 | 3-6 |
| 27-HDP | Pin Drive | 3-6 | 3-6 | |
| 20-HDP | Pin Drive | 3-6 | 3-6 | |
| RTM4 | Medium | Square Drive | 2 1/25 1/4 | 3-4 1/4 |
| 20-MDP | Pin Drive | 2 1/2--4 1/4 | 3-4 1/4 | |
| 17-MDP | Pin Drive | 2 1/2--4 1/4 | 3-4 1/4 | |
| RTS4 | Light -duty | Square Drive | 2 1/2--4 1/4 | 3-4 1/4 |
Xi'an TianRui Petroleum Machinery Equipment Company Limited was established in 2010 and located in Xi'an city of China. Our main products include: solid control equipment, dowhole tools, oilfield drilling rig and workover rig and their parts, wellhead tools, BOP and spare parts, mud pump spare parts.
Our products include solid control equipment, cement tools, PDC drilling bits, Wellheading tools, Mud pumps and their acceossries. They are exported to Russia, America, Middle East, South America, Southeast Asia, Central Asia , African, Australia,Europe etc. Our company is willing to cooperate and make common progress with friends at home and abroad with first-class products, first-class service and reasonable prices.
Competitive Advantages
1. We offer high quality products at competitive price.
2. Shortest delivery time.
3. Flexible payment terms.
4. Timely after-sale service.
5. Most of our equipment can be replaceable with international brands.
6. Our products have been exported to Argentina, Egypt, US, Australia, Romania, Pakistan, Dubai, Abu Dhabi, Iran, India, Indonesia, Vietnam, Malaysia and many other countries.
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