Specifications
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"
Material :
4145 H
Length :
R1~R3
Package :
Plywood Box(free-fumigation)
Warranty :
12 MOUNTHS
Processing Type :
Forging
Description

API Spec 7-1 and SY5411 Standard Hexagonal Kelly for Oilfield

Product Introduction

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.

Square drill kelly are made from AISI 4145H alloy bars that are quenched and tempered full length. A hardness range of 285 to 341 BHM and a minimum impact value of 54 Joules as per ASTM A 370 are maintained one inch bellow the surface at room temperature. To improve resistance to galling, all connections are phosphate-coated with an API thread compond. Each bar used to manufacture kellys has been examined with magnetic partice inspections and ultrsonic inspections.

Main Benefits of Our Square & Hexagonal Kelly

  1. Shipped in a protective steel -cased scabbard.
  2. Ultrasonic inspection is performed on all section.
  3. 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.
  4. Ends and drive section,IDs and connections machined and inspected to API specification.

Technical Specifications 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

1/2

Why do I choose you?


Our company was registered in the year 2010. Before we start our own business, our team members all worked more than 8 years in some other big petroleum companies. Our members have abundant supplier channels, trading and project implementation experience. Besides, we also have our own after-sales service team. Therefore, we could provide the required equipment with superior quality and competitive price.

When ordering please specify:

  • Kelly type (Square or hexagonal).
  • Nominal size and overall length.
  • Upper and lower connection.

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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1/2" Forging Oilfield Hexagonal Kelly Drill Spare Parts

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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
Contact Supplier
1/2 Forging Oilfield Hexagonal Kelly Drill Spare Parts
1/2 Forging Oilfield Hexagonal Kelly Drill Spare Parts
1/2 Forging Oilfield Hexagonal Kelly Drill Spare Parts

Xi'an TianRui Petroleum Machinery Equipment Co., Ltd.

Verified Supplier
8 Years
Since 2010
Business Type :
Manufacturer
Total Annual :
40 Million-50 Million
Employee Number :
350~450
Certification Level :
Verified Supplier
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