(Surface casing) the Company's production of surface casing, surface casing is a large diameter pipe, played the role of the fixed oil and gas wells wall or borehole. The casing is inserted into the borehole, fixed with cement to prevent the borehole to separate the rock formations and borehole collapse, and to ensure the flow of drilling mud circulation, in order to facilitate the drilling mining. Different types of casing used in oil extraction process: surface oil casing - the protection of drilling, so that it avoid the pollution of shallow aquifers and shallow gas reservoir - other layers of the weight of the support wellhead equipment and keep the casing. Technical oil casing - separated by different levels of pressure, so that the amount of normal circulation of drilling fluid and to protect the production casing. - In order to install the anti-explosive device within the drilling, leakage devices and tailpipes. Reservoir oil casing - oil and gas derived from the storage layer under the surface. - For the protection of the drilling, drilling mud stratification. The oil produced by our company the casing in press SY/T6194-96 regulations. Tensile testing for the flattening test (GB246-97) (GB228-87) and hydrostatic test. Welcome to call 0317-5128533 mobile phone: 13323270092 Fax :0317-6322267 Contact: Wang Yuehong URL: http://www.baiyipipe.com