Due to the difference in upstream and downstream pressure, the flow of material through the valve is called pressure drop (△P) or differential pressure. If the pipe size is the same upstream and downstream of the valve and the speed is constant, the valve must reduce …

Gate valve is the most common kind of industrial valve, widely used in petroleum, petrochemical, power station, long-distance pipeline and shipbuilding and other industrial fields. As a fluid control device, the gate valve opening and closing part is the gate plate, wh…

On May 21, Tarim Oilfield made full use of the natural advantages of the southern Xinjiang region located in the first and second solar radiation areas to strengthen the construction and operation and maintenance of new energy projects such as photovoltaic. At present,…

On May 14, Well Xinghua 1 Ping 5 in Bayan Oilfield of North China Oilfield was successfully drilled with a drilling depth of 6017 meters, a horizontal section length of 1032 meters, and a drilling cycle of 55.5 days, which broke the record of the deepest horizontal wel…

Recently, the new liquid polysaccharide gel water blocking agent independently developed by Northwest Oilfield was applied in well TH12133 of Tahe Oilfield, the water cut was reduced from 97% to 41%, and the daily oil production increased significantly.Northwest Oilfie…