Recently, I learned from the Provincial Science and Technology Department: Jiangsu Jinshi Machinery Group Co., Ltd. "High-pressure oil and gas wellhead equipment and automatic safety control system research and industrialization" project was approved as the 2005 provincial scientific and technological achievements into a special fund project. The project requires a total investment of 1 to 2 billion yuan, of which the provincial government subsidies 10 million yuan free of subsidies, loan interest 234 million yuan, totaling 12.34 million yuan, is the largest industrialization in Jinhu County, the government subsidies up to science and technology research and development projects. Jinshi Group has five patented technologies, such as flat-plate valve, slip-type casing hanger, tubing head cable sealing device, hydraulically actuated safety valve and stem metal self-sealing device. The high-pressure wellhead equipment and automatic safety control technology can automatically release the pressure of the safety valve control line when the pressure in the wellhead is abnormal or the fire in the wellsite occurs, so that the well head closes automatically. The technology is in a leading position in the world.