J55 oil casing manufacturers prices

J55 oil casing manufacturers (Manager Wu: 18333440848 QQ: 3024587634) Long steel industry in North China Cangzhou large J55 oil casing manufacturers, factory direct J55 oil casing low prices and a large inventory J55 oil casing, N80 oil sets pipe, L80 oil casing, K55 oil casing, P110 casing, partial ladder buckle oil casing, long round buckle casing, short round buckle casing, seamless steel pipe and other stock, welcomed the consultation and cooperation. The company is in Hebei J55 oil casing largest manufacturer, I produced the J55 oil casing Hebei best quality J55 oil casing. Over the years my company as a well-known brand manufacturers J55 oil casing in good faith, quality first The principle of hard work and positive, with the world's most advanced J55 oil casing manufacturers to learn and progress, continuous improvement in technology, management and orderly well strip, Hebei Province, the most powerful J55 oil casing manufacturers. oil casing It is used to support oil and gas pipe wall, in order to ensure the drilling process and after completion of normal operation of the wells. Each well depending on the depth of drilling and geological conditions, to use several layers of casing. After cementing casing go down to use it and tubing, drill pipe is different, can not be reused, are disposable consumable materials. Therefore, the casing consumption of more than 70% of all the oil well pipe. Casing according to usage can be divided into: a catheter, surface casing, casing and production casing. Casing according to usage can be divided into: a catheter, surface casing, casing and production casing. OCTG mainly used to transport oil and gas well drilling and oil and gas. It includes oil drill pipe, casing, tubing pumping. Oil drill pipe used to connect the drill collar and drill bit and drilling power transfer. Oil casing is mainly used to support the rear of the wall during drilling and completion, and after completion to ensure the normal operation of the entire drilling process wells. The main pipeline pumping oil at the bottom of the oil and gas transport to the surface. Oil well casing is run to maintain a lifeline. Due to different geological conditions, underground complex stress state, pulling, pressing, bending, torsional stress acting on the combined effect of the tube, which is the quality of the casing itself made a higher demand. Once the casing itself is damaged for some reason, it could lead to the whole production wells, or even scrapped. According to the strength of the steel casing itself can be divided into different grade, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150 and so on. Well conditions, depth of different steel grades used are different. In a corrosive environment also requires the casing itself has corrosion resistance. In complex geological conditions where the sleeve has also asked the collapsing performance. After nearly 20 years of efforts, China's oil production casing from scratch, from low-price to high-price, low-grade steel products to the API and then to the special needs of non-API products, from quantity to quality are close the level of foreign oil casing products. Domestic market share of OCTG has exceeded 80%, and has been for many years to become a net exporter of the product. China's crude oil output reached 204 million tons, compared with the same period in 2010 an increase of 0.32%; natural gas production reached 102.531 billion cubic meters, an increase of 6.9%, a record high. China is still in urbanization, industrialization and rapid development stage, the next few years, the average annual oil demand growth of around 4%. The growing demand for oil contributed to the rising demand of oil drilling equipment. From our domestic regional distribution, oil casing needs no longer concentrated in the eastern region. From the domestic oil and gas field development trends, from the initial development of Daqing, Liaohe, Shengli Oilfield later turned to the West oil fields in eastern Sichuan, Xinjiang and other development trends concern offshore oil fields, in addition to the beach also, from shallow water development from land to sea. Aviation pipe think coupled with deeper drilling depth, drilling working conditions increasingly complex requirements for oil casing inevitably increasing.