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  • Drill Kelly For Drilling Operations - China

    price: contact company for price

    LUHAI provides square Kelly and hexagonal Kelly which is manufactured strictly according to API Spec7-1 and SY/T6509-2000 standard.

    Description & Specification:
    Size: full range from 2-1/2 to 6
    Material: AISI 4145H alloy steel
    Standard: API SPEC 7-1、SY/T6509-2000.

    Size(in) Top Connection(LH) Bottom Connection I.D. (in) Drive Section (in)
    Standard O.D.(in) Optional O.D.(in) Square O.D.(in) Hex. O.D.(in) Square Hex. A B
    2-1/2 6-5/8REG 7-3/4 4-1/2REG 5-3/4 NC26 85.7 1-1/4 3-2/7
    3 6-5/8 REG 7-3/4 4-1/2REG 5-3/4 NC31 4-1/8 NC26 3-3/8 1-3/4 1-1/4 4 3-3/8
    3-1/2 6-5/8 REG 7-3/4 4-1/2REG 5-3/4 NC38 4-3/4 NC31 4-1/8 2-1/4 1-3/4 4-1/2 4
    4-1/4 6-5/8REG 7-3/4 4-1/2REG 5-3/4 NC46 6-1/4 NC38 4-3/4 2-4/5 2-1/4 5-4/7 4-4/5
    6-5/8 REG 7-3/4 4-1/2REG 5-3/4 NC50 6-3/8 NC38 4-3/4 2-4/5 2-1/4 5-4/7 4-4/5
    5-1/4 6-5/8 REG 7-3/4 5-1/2FH 7 NC46 6-1/4 3-1/4 3 7 6
    6-5/8 REG 7-3/4 NC56 7 NC50 6-3/8 3-1/4 3-1/4 7 6
    6 6-5/8 REG 7-3/4 5-1/2FH 7 3-1/2 6-4/5
    6-5/8 REG 7-3/4 NC56 7 3-1/2 6-4/5


    Company Contact:


    • Phone: +86-10- 58677865

    • Address: Room 2101, Building 1, No 6 Shuguang Xili, Chaoyang Dist., Beijing, Beijing, China

    • Email: Email


    Published date: August 1, 2016 -

    • Business Description: Luhai Energy Co.,Ltd is the international business company of Shandong Luhai Petroleum Technology Co., Ltd. (Stock Code:832799)
      Shandong Luhai was founded in year 2008, which is a high-tech enterprise of producing drilling equipments and tools. Main products involve in well drilling, well cementing, well completion, and oil extraction, including more than ten series, hundreds of varieties of drilling equipment, accessories and tools. Especially, downhole motors, drilling pipes, collars, drilling bits and other core products obtain more than 20 national utility model patents.
      Through Luhai’s continuous efforts, the company established a set of standardized production quality control, inspection and testing management systems, having the international advanced testing tools and test equipments, which help Luhai to obtain API SPEC6A, API 7K, API 7-1, and API 5CT certifications, also ISO9001 quality system certification, ISO14001 environment system certification and ISO18001 occupational health and safety system certification.
      After be listed on the stock market, Luhai expands product lines with strong financial arm, the Logging While Drilling (LWD) and drilling fluid treatment equipments get rapid development. Furthermore, Luhai managed to build solid cooperation with many foreign famous brand, some core components of Luhai products are switched to those international products which enhance Luhai to provide more stable quality and high efficiency products for our customers.
      Luhai Energy Co.,Ltd. was established in March 2016. In addition to the advanced products, Luhai Energy will equipped by the capital advantages and technical specialty, to invest in the revolutionary technology R&D for drilling tools and drilling equipments, continuously develop overseas distributor system, seek the oversea cooperation opportunities, focus on the product performance enhancement, maintenance and repair services, and tools/equipments trade/leasing business.

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