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Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.
Xi'an TianRui Petroleum Machinery Equipment Co., Ltd. Providing Cost-Effective Solids Control Solutions
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Forging 4145H 3 1/2" Rotary Oilfield Hexagonal Kelly

Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.
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Forging 4145H 3 1/2" Rotary Oilfield Hexagonal Kelly

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Brand Name : TR Solids Control

Model Number : TRFZG

Certification : API 7-1, ISO 9001

Place of Origin : Xi'an China

MOQ : 1 pc

Price : Negotiable

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

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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

  1. Shipped in a protective steel -cased scabbard.
  2. Ends and drive section,IDs and connections machined and inspected to API specification.
  3. Ultrasonic inspection is performed on all section.
  4. Manufactured from AISI4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341BHN and a minimum average Charpy impact value of 40ft-Ibs.

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

Forging 4145H 3 1/2" Rotary Oilfield Hexagonal Kelly

Xi'an TianRui Petroleum Machinery Equipment Company Limited is a professional manufacturer and supplier of all types of petroleum equipment. The company is located in Xi'an city of China. And we have many years of history in the petroleum equipment industry. Our main products include solid control equipment, oil production equipment, wellhead equipment, well control equipment, downhole tools, OCTG pipe, vavle & pipe fitting and oilfield tools.

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.


Product Tags:

Oilfield Hexagonal Kelly

      

Rotary Drill Hexagonal Kelly

      

3 1/2" Hexagonal Kelly

      
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