Oil casing material, oil pipe (certified), China Petroleum casing

 J-55 oil casing, K-55 oil casing, N-80 oil casing, C-75 oil casing, L-80 oil casing, C-90 oil casing, C-95 oil casing, P -110 oil casing, Q-125 oil casing, 13Cr oil casing, and so on. Three years of the Qing dynasty (1904) in November, governor of Shaanxi Qin Cao Hongxun oil to extend the pilot plant, was aimed consented, dial silver 8100 two of capital, and so do the magistrate Hung Yin total. By Wuhan laboratory oily petroleum casing coupling component is very high. Created in 1905 to extend the mine Shiyou Guan Bureau (extend oil factory official), and sent troops to extend Xi'an road construction segment. After learning to teach Japanese in Shaanxi Abe is wild Lang's introduction, hired Japanese Satoh Yaichiro for technicians, sent to Japan to buy drilling oil refining machinery, while Japan Drilling Assistant Technician employed six people. Shaanxi provincial government and sent four people by Yunfei, Japan to study petroleum engineering. Thirty-three years Guangxu (1907) April 25 drilled in the county to extend outside the West played the first oil well casing, the beginning of the daily output of 1.5 tons. The wells to obtain industrial oil flow, is China's first oil wells. This is China's first oil well in the land, known as the old one well. This well drilling success, marked the beginning of China's industrial exploitation of oil, from the history of China opened a new chapter in the development of oil and oil casing thread, ending the history of Chinese oil-free continent. 1985, State Councilor Kang Shien wells for this title: "China's onshore oil wells in the first." This well preserved, as a witness of history. The first is located in China's onshore oil wells in Shaanxi Yanchang County Petroleum Hope School campus. Shaanxi Yanchang Petroleum famous. China is the world's first oil discovery and use of national oil casing material, but also to extend the county, Shaanxi Province is China's first oil discovery and use of the place. Casing: Surface oil casing - protection drilling to avoid the shallow aquifers and shallow gas pollution - wellhead equipment to support and maintain the weight of the casing other layers. Technical Oil Casing - separate different pressure levels in order to limit the normal flow of drilling fluid and protect the production casing. - In order to install the anti-burst device, leak-proof devices and tailpipes in the drilling. Reservoir oil casing - Export of oil and gas from the reservoir in the subsurface layer. - For the protection of drilling, the drilling mud stratification. When the oil casing production, diameter is usually 508 mm to 114.3 mm. 2Cr oil casing pipe, oil pipe steel grade DLP-33Cr, casing steel grade DLP-31Cr, casing steel grade DLP-32Cr, casing steel grade DLP-33Cr, oil casing steel grade DLP-16Cr18Ni, oil sets tube steel grade DLP-17Cr22Ni, oil casing steel grade DLP-18Cr22Ni, casing steel grade DLP-34Cr, casing steel grade DLP-35Cr, casing steel grade DLP-36Cr, casing steel grade DLP-37Cr, casing grade DLP-38Cr, N80-Q oil casing collapse strength (MPa), STC short round thread casing, LTC long round thread casing, BTC partial ladder thread Casing steel grade DLP-39Cr, steel casing Class DLP-40Cr, oil casing steel grade DLP-18Cr, oil casing steel grade DLP-19Cr, casing steel grade DLP-35Cr, casing steel grade DLP-36Cr, casing steel grade DLP-37Cr, oil casing grade DLP-20Cr, oil casing steel grade DLP-21Cr, oil casing steel grade DLP-22Cr, oil casing steel grade DLP-23Cr, L80 short round thread casing, oil pipe steel grade DLP-32Cr, Q125 special gap threaded sleeve, L80-Q Oil Casing Weight (kg / m), P110 grade steel casing color a vaginal discharge, oil pipe steel grade DLP-1Cr, oil pipe steel grade DLP-2Cr, 193.7 * 9.53 Oil sets pipe, oil casing material, oil pipe (certified), China Petroleum casing provided by the Tianjin Pipe Co., Ltd. Dali Pu petroleum oil Hattori. Oil Pipe Co., Ltd., Tianjin Da Lipu oil Hattori (www.cnoctgs.com) Tianjin Jinghai County, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . In Dali Pu oil pipe leading the staff warmly welcome all inquiries negotiations to create Dali Pu oil pipe a better future.