Nara Petroleum Mechanical Manufacture Co. Ltd, estabished in 2007 and located in the industrial park of Chinese second largest oil field in Dongying City-Shengli Oil Field, is a high-tech private limited liability company which takes the lead in developing, manufacturing and selling oil machinery.

    Cross-over sub acts for conversion and connection of drill stem component in petroleum , natural gas and geology drilling work. 

     They are disposed of in all-around quenching and backfire and inspected with all-sectional ultrasonic, its mechanical capability can achieve: σb≥965Mpaσ0.2≥760Mpaσ4≥13%Akv≥54jHB=285341

    We have fixed angle bending sub and drill stem crossover sub.  Bending sub is one of the most important tools for driving drilling tools for angle building. It makes the drilling tools bend and elastically deformed to offer the drill bit a side force and make it build angle, drop angle or change position so as to achieve the purpose of angle building, azimuth change, side turning and deviation control in straight well.

  Technical specifications and parameters  (adjust to your demands)

    We have first-class production equipment and  production team, so we can provide you first-class products with high quality and proper price!

   We have our own patented products and has passed the attestation of ISO9000:2000 quality system and API, obtained the certificate to enter the net of PetroChina and Sinopec and Class B qualification of PetroChina well control net, and had the honor to win Prizes of Technique Innovation and S&T of Dongying City in 2009.

   Our main business includes design and manufacture of downhole drilling tools and wired MWD equipment, manufacture and sales of oil pipe and screw drilling tools, and main products include integral spiral blade stabilizer, hydraulic pressure damping load, oil pressure tapered stabilizer, remote tapered stabilizer, IBOP, flapper type float valve, arrow check valve,casing protector,casing milling tool, adjustable tapered stabilizer, oil pressure tapered stabilizer, nonmagnetic drill collar and so on, totally over 30 series and 10 categories.

   We will package and ship products according to your requirements.

    Service contributes to quality and quality contributes to confidence, which is our enterpress slogan and  mission. We have developed a complete, transplantable enterprise management and operation mode of design, production and after-sale service, with the spirit of "unity, progressive, innovative and efficient," and design tools of three-dimensional solid, finite element analysis, motion simulation and so on.

    We will try our best to provide you best service! Looking forward to cooperate with you!

Sharon

Nera Petroleum Mechanical Manufacture Co., Ltd

Add:No. 2 Juzhou Road, Dongying Developing Zone, Dongying, Shandong, China (Mainland)

Mobile NO.: 15066013625

Tel: 86-0546-8175080

Fax: 86-0546-8175070

Skype: sharonzhang28

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