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.

    With manufacturing shop covering an area of 50,000m2 , its registered capital values at 20.1 million Yuan, total fixed assets 20 million, current assets 48 million,floating debt 5 million and equity 49 million. The company has a total staff of 86, including 10 senior engineers, 25 engineers, 2 senior accountants, 5 accountants and 5 assistant accountants.

                                                                                                                                           Centralizers are an integral part of the cementing process. They provide the mechanism that  centers the casing in the hole and allows uniform cement flow around the casing to help prote-ct it at all points. Several styles of centralizers are available for matching different well specific-ations and hole sizes, including turbulence generating designs that help clean the annulus and 

distribute the cement more evenly and uniformly. All models offer ample clearance for fluid 

passage and are extra effective in centering the casing, even in highly deviated holes and impro-ve cement flow by reducing the effects of channeling.

     High quality centralizers are made of special alloy steel and hot formed in totally controlled heat treatment plant to achieve the uniform hardness all over. The woven centralizer is connected by pin in use, and the unfolded centralizer can be stacked flatly for convenient storage and transportation.

Features:

1. Spiral blades increase annular turbulence.

2.  With the shape of stream-lined, it enables casing run easily in wellbore.

3. Both straight blade and spiral blade are available.

4. The material can be cast steel or cast aluminum.

5. Solid Body Centralizer 
6. Casing size: 4"-14" 
7. Available with straight or spiral blades 

1. dual bow spring type

 4″×5-7/8″,  4-1/2″×6-1/8″,  5″×61/2″,  5-1/2″×8-1/2″,  7″×8-1/2″,  7-5/8″×9-1/2″ ,     

8-5/8″×10-5/8″,   9-5/8″×12-1/4″,   10-3/4″×14-3/4″,   13-3/8″×17-1/2″,   16″×20″,  20″×26″, ect.

2. spiral rolling rigid type fixed with screw

 4″×5-7/8″, 4-1/2″×6-1/8″, 5″×61/2″, 5-1/2″× 8-1/2″, 7″×8-1/2″, 7-5/8″×9-1/2″, 8-5/8″×10-5/8″, 9-5/8″× 12-1/4″, 10-3/4″×14-3/4″, 13-3/8″× 17-1/2″, 16" × 20",

20″×26″,ect.

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 quality to supply materials for PetroChina and Sinopec and Qualification Certificate of CNPC Well Control, 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 tubing coupling, sucker rod elevator, drill pipe slip, , 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!

      We have foreign clients and market in almost every corner of the world and will you be the next one? Sincerely look forward to cooperation with you!