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API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling

    Buy cheap API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling from wholesalers
     
    Buy cheap API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling from wholesalers
    • Buy cheap API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling from wholesalers
    • Buy cheap API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling from wholesalers
    • Buy cheap API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling from wholesalers
    • Buy cheap API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling from wholesalers

    API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling

    Ask Lasest Price
    Brand Name :
    Model Number : Square Kelly & Hexagonal Kelly
    Certification : ISO
    Price : USD800-2000/pc
    Payment Terms : T/T, Western Union, MoneyGram
    Supply Ability : 500 pcs per month
    Delivery Time : 20-30 days
    • Product Details
    • Company Profile

    API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling

    API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling

    Kelly is the drive part of whole drill string, it transmits the torsional energy from the rotary table to the bit in the bottom of the hole. Kelly is supported by the swivel through the rotary table and connected to the first joint of drill pipe in the drill string. Kelly has been approved by the API certification. Straightness is the key manufacturing process. Straightness is checked before, during and after each machining operation. Flats are precision-milled to API specifications. All millings are performed on specially designed rigid Kelly mills. Each Kelly is furnished with a pressed steel thread protector. We supply both square kelly and hexagonal kelly.

    Product Details:

    • Kelly is manufactured strictly according to API Spec7-1 standard. Manufactured from AISI 4145H-modified, fully heat-treated alloy steel with a Brinell hardness range of 285-341 and a minimum average Charpy impact value of 40 ft-lbs.

    • The end, drive section and connection of Kelly are machined and inspected according to API standard.

    • Ends and drive sections, IDs and connections machined and inspected to API specifications.

    • Kelly bars are ultrasonically inspected over full length and section.

    • Shipped in a protective steel-cased scabbard.

    Specifications:

    Size

    (inch)

    Upper Box Connection Lower Pin Connection ID(mm) Driving Section mm
    Type(LH) OD(mm) Thread Four Six

    Cross

    Flat

    For Square

    Kelly

    Cross Corner For Hexa Kelly
    Std Optional Std Optional Four

    OD

    (mm)

    Six

    OD

    (mm)

    2-1/2" 6 5/8 REG 4 1/2REG 196.8 146.0 NC26 85.7 31.8 63.5 83.3
    3" 6 5/8 REG 4 1/2REG 196.8 146.0 NC31 104.8 NC26 85.7 44.4 31.8 76.2 100.0 85.7
    3-1/2" 6 5/8 REG 4 1/2REG 196.8 146.0 NC38 120.6 NC31 104.8 57.2 44.4 88.9 115.1 100.8
    4-1/4" 6 5/8 REG 4 1/2REG 196.8 146.0 NC46 158.8 NC38 120.6 71.4 57.2 108.0 141.3 122.2
    6 5/8 REG 4 1/2REG 196.8 146.0 NC50 161.9 NC40 120.6 71.4 57.2 108.0 141.3 122.2
    5-1/4" 6 5/8 REG 196.8 5 1/2FH 177.8 NC46 158.8 82.6 76.2 133.3 175.4 151.6
    6 5/8 REG 196.8 NC56 177.8 NC50 161.9 82.6 82.6 133.3 175.4 151.6
    6" 6 5/8 REG 196.8 5 1/2FH 177.8 88.9 152.4 173
    6 5/8 REG 196.8 NC56 177.8 88.9 152.4 173

    API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling

    Any enquiry please contact us by email: christal@oilmancn.com.

    Visit our website: www.oilmanchina.com for more products information.

    Our WhatsApp/WeChat:+86 13475294399

    Quality API 7-1 5-1/4′′ Square Or Hexagonal Kelly Drill Pipe For Oilfield Drilling for sale
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