Oil Drilling Professional Bow Spring Centralizer
This is an API 4-12 oil drilling rig Casing centralizer, it is an effective tool for keeping the casing centered in the cementing operation, which can improve the quality of cementing, prevent borehole wall erosion, and ensure the integrity of oil and gas wells and yield. Its design conforms to API standards, and the appropriate size and model can be selected according to different well conditions and needs. Its material is durable and resistant to high temperature, pressure and corrosion.
This API 4-12 oil rig casing centralizer is available in three different styles: integral centralizers, non-welded integral centralizers, and bow spring centralizers.
The integral centralizer is a kind of centralizer that fixes the reinforcing ribs and diversion grooves on the outer wall of the casing by welding or riveting. It can generate centripetal force in the wellbore to keep a certain gap between the casing and the well wall, which is beneficial to the flow and solidification of cement slurry. The integral centralizer has the characteristics of solid structure, wear resistance and strong adaptability, and can be used for cementing operations in various vertical or inclined wells1.
The non-welded integral centralizer is a kind of centralizer that combines the rib plate and the diversion groove into one by molding method. There is no welding or riveting gap, which avoids stress concentration and embrittlement, and improves the strength and stability of the centralizer. The non-welded integral centralizer has the characteristics of light weight, small starting force and large restoring force, and can be used for cementing operations of complex well structures such as horizontal wells, extended-reach wells, J-shaped wells, and S-shaped wells2.
The bow spring centralizer is a centralizer with bow ribs made of ultra-high-strength spring steel, which can generate an outward force in the wellbore to keep a certain gap between the casing and the well wall, which is beneficial to the cement slurry Flow and solidify. The bow spring centralizer has the characteristics of simple structure, safety and reliability, good elasticity, and convenient use on site, and can be widely used in cementing operations of vertical wells or highly deviated wells3.
We, Dongfanglong, can produce these three types of casing centralizers, which can be traded completely according to your needs. Our casing centralizer is one of the important tools to improve the efficiency and quality of oil and gas well construction, and is an indispensable part of the industry.
Henan Dongfanglong Machine Manufacture Co., Ltd. was founded in 1999, mainly engaged in oil pipes and Pipe Fittings, oil special drilling and production tools and oil automation equipments. The company is named as national integration and standard implementation enterprise, a national science and technology-based small and medium-sized enterprise. With honors of"Henan enterprise technology center", "Henan postdoctoral innovation practice base", the company hold 35 senior engineers, engineers and technicians, and has successively obtained ISO9001 Quality system certificates, API 5CT certificate authorized by American Petroleum Institute and BV Quality supplier evaluation certificate issued by company of France. Owing more than 30 independent intellectual property rights, forming an industrial chain integrating design, development, manufacturing, testing and experiment of numerical control automation equipment for petroleum machinery products, which can meet customers' demand for products Full cycle service. 
