Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union |
| Supply Ability | 100000 pcs Per Month |
| Delivery Time | 15 days |
| Packaging Details | Pallet or wooden case |
| Size | 2-1/2" ~ 6" |
| Package | Plywood Box(free-fumigation) |
| Processing Type | Forging |
| Steel Grade | 4145H |
| Brand Name | TR Solids Control |
| Model Number | TRFZG |
| Certification | API 7-1, ISO 9001 |
| Place of Origin | Xi'an China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union | Supply Ability | 100000 pcs Per Month |
| Delivery Time | 15 days | Packaging Details | Pallet or wooden case |
| Size | 2-1/2" ~ 6" | Package | Plywood Box(free-fumigation) |
| Processing Type | Forging | Steel Grade | 4145H |
| Brand Name | TR Solids Control | Model Number | TRFZG |
| Certification | API 7-1, ISO 9001 | Place of Origin | Xi'an China |
| High Light | Oilfield Hexagonal Kelly ，Rotary Drill Hexagonal Kelly ，3 1/2" Hexagonal Kelly | ||
Oil and Gas Rotary Kelly Drill String Square or Hexagonal Type
Product Overview
Kelly is located in the top of the drill string, with square and hexagonal. In rotary drilling, when it is drilling, kelly connected with square bushing and rotary bushing, transfer the ground rotary torque to drill pipe and to drive the drill bit,bearing the weight of the drill string.In the drilling of the turbine and screw, the weight of the drill string and the counter torque are supported.
Our Square& Hexagonal kelly are made from AISI 4145H modified alloy bars that are quenched and tempered full length. After such heat treatment, its brinell hardness can reach 285-341. Kelly's end, drive cross-section and joint are all processed and tested comform to API criterion.
Straightness of the kelly is very crucial in the manufacturing process, thus straightness inspections are carried out before, during and after each machining operation. All milling processes are performed on specially designed rigid Kelly mills to ensure tight tolerances and high quality drive sections.
Main Specialities of Our Square & Hexagonal Kelly
Technical Data of Our Square & Hexagonal Kelly
| Kelly size | 63.5 | 76.2 | 88.9 | 108 | 108 | 133.4 | 133.4 | ||
| 2 1/2 | 3 | 3 1/2 | 4 1/4 | 4 1/4 | 5 1/4 | 5 1/4 | |||
| Lengthdrive Section | LD Standard | 11280 | 11280 | 11280 | 11280 | 11280 | 11280 | 11280 | |
| LD optional | 15540 | 15540 | 15540 | 15540 | |||||
| Lengthoverall | L Standard | 12190 | 12190 | 12190 | 12190 | 12190 | 12190 | 12190 | |
| L optional | 16460 | 16460 | 16460 | 16460 | |||||
| Length Drive Section | DFL Across flate | 63.5 | 76.2 | 88.9 | 108 | 108 | 133.4 | 133.4 | |
| DC Across cornere | 83.3 | 100 | 115.1 | 141.3 | 141.3 | 175.4 | 175.4 | ||
| DCC Across flate | 82.55 | 98.43 | 122.7 | 139.7 | 139.7 | 171.45 | 171.45 | ||
| RC Radlue | 7.9 | 9.5 | 12.7 | 12.7 | 12.7 | 15.9 | 15.9 | ||
| RCC Radlue | 41.3 | 49.2 | 56.4 | 69.9 | 69.9 | 85.7 | 85.7 | ||
| Wall thickness eccentric bore | 11.43 | 11.43 | 11.43 | 12.07 | 12.07 | 15.88 | 15.88 | ||
| Upper box connection | Thread size and style LF | Standard | 6 5/8 REG | 6 5/8 REG | 6 5/8 REG | 6 5/8 REG | 6 5/8 REG | 6 5/8 REG | 6 5/8 REG |
| Optional | 4 1/2 REG | 4 1/2 REG | 4 1/2 REG | 4 1/2 REG | 4 1/2 REG | ||||
| OD | Du Standard | 196.9 | 196.9 | 196.9 | 196.9 | 196.9 | 196.9 | 196.9 | |
| Du Optional | 146.1 | 146.1 | 146.1 | 146.1 | 146.1 | ||||
| Bevel diameter | Lu | 406.4 | 406.4 | 406.4 | 406.4 | 406.4 | 406.4 | 406.4 | |
| DF Standard | 186.1 | 186.1 | 186.1 | 186.1 | 186.1 | 186.1 | 186.1 | ||
| DF Optional | 134.5 | 134.5 | 134.5 | 134.5 | 134.5 | ||||
| Lower pin connection | Label | NC26 | NC31 | NC38 | NC46 | NC50 | 5 1/2 FH | NC56 | |
| Outsize diameter | 85.7 | 104.8 | 120.7 | 158.8 | 161.9 | 177.8 | 177.8 | ||
| LL | 508 | 508 | 508 | 508 | 508 | 508 | 508 | ||
| DF Bevel diameter | 82.9 | 100.4 | 116.3 | 145.3 | 154 | 170.7 | 171.1 | ||
| Inside diameter | 31.8 | 44.5 | 57.2 | 71.4 | 71.4 | 82.6 | 82.6 | ||
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.
Company Details
Business Type:
Manufacturer
Year Established:
2010
Total Annual:
40 Million-50 Million
Employee Number:
350~450
Ecer Certification：
Verified Supplier
Xi'An TianRui Petroleum Machinery Equipment Co.,Ltd. (For short: TR Solids Control) is a professional manufacturer of solids control equipment and mud recovery system, located in Xi'an City, China. Since 2010, TR Solids Control focused on the development and production of... Xi'An TianRui Petroleum Machinery Equipment Co.,Ltd. (For short: TR Solids Control) is a professional manufacturer of solids control equipment and mud recovery system, located in Xi'an City, China. Since 2010, TR Solids Control focused on the development and production of...
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