For a long time, the cementing industry has generally adopted the method of cementing the cementing tools on the joint surface of the joint section. With the continuous development of drilling technology in Dagang Oilfield, the use of batch drilling to speed up petroleum engineering is imminent. In order to shorten the cementing cycle and reduce the cementing construction intensity, Dagang Oilfield Group Cementing Technology Service Co., Ltd. has started the project “Research on Integrated Technology of Ending Island without Drilling Cementing†since the end of 2006. After nearly one year of research and implementation, the project has been successfully tackled, and its supporting project “Fast Wellhead Device for No-Drilling Cementing†has obtained national practical technical patents.
"Fast-filled wellhead device for drilling-free cementing" successfully solved the need of manual tightening and raising short joints and cementing cement heads during cementing construction. It has high labor intensity, difficult to buckle, extremely easy to damage the thread buckle, and the degree of tightening is also It is difficult to control, the pressure bearing capacity of the thread can not be guaranteed, and the construction safety hazard is large, which provides technical support for ensuring the safety of cementing construction and shortening the drilling cycle.
From the beginning of 2007 to the present, "Tiandao No-drilling Cementing Comprehensive Supporting Technology Research" has been successfully implemented in the Bohai No. 1 artificial island, and a total of 19 wells have been cemented, which has proved the advanced and effective technical solutions. feasibility.
Galvanized Steel Strip is the cold rolled or hot rolled, long and narrow strip of steel with different degrees of plating on a layer called (zinc, aluminum) raw materials. Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life. Complex physical and chemical reactions occur between the substrate of hot dip galvanized steel strip and molten bath to form a corrosion-resistant zinc iron alloy layer with compact structure. The alloy layer is integrated with pure zinc layer and strip substrate. Therefore, it has strong corrosion resistance.
The first stage is pickling the whole coil of strip steel to achieve bright and clean surface. The second stage is hot-dip galvanizing or hot-dip galvanizing, and the third stage is the storage of strip steel after galvanizing. Galvanized steel strip has the characteristics of no rust and corrosion resistance for many years. It can not be affected by external adverse environment, and always maintain its own performance and appearance. In the process of using galvanized steel strip, in order to improve its operation efficiency and its own characteristics, we can carry out post-treatment on the finished galvanized steel strip to make its performance more excellent.
Galvanized Steel Strip
Galvanized Steel Strip,Galvanzied Steel Coil,Galvanized Steel Sheet,Zinc Coated Steel Coil,Galvanized Aluminium Steel Coil
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