In February, the daily production of coalbed methane in Qinshui coalbed methane field of Huabei Oilfield continued to maintain a high operating state of more than 7.2 million cubic meters.
The 21st Tianjin Industry Expo (CIEX) will be held at the National Convention and Exhibition Center (Tianjin) from March 6 to 9. It serves the whole industrial chain of industrial
In the fluid piping system, the valve is the control element, its main role is to isolate the equipment and piping system, regulate the flow rate, prevent backflow, regulate and
1. Valve stem corrosion and protection
Main causes of valve stem corrosion:
The corrosion damage of the valve body is mainly caused by the corrosive medium, and the valve stem corrosion problem is mainly the packing.
At 13:00 today, with the issuance of gas production instructions, the production valve of Nanpu No. 1 gas storage well of Jidong Oilfield Branch of petrochina Co., LTD.,
At 15:58 on November 12, with the opening of the last valve room No. 2 of Qinggao Line (Qing1 gas collection Station to Gaoshawo), natural gas in Ningqing block of Yumen Oilfield
Fixed shaft ball valve is commonly used on natural gas pipelines, and its general inspection method is: turn the valve to the fully open or fully closed position
Since the beginning of this year, Tuha Oilfield has established a "highway" for shale oil, tight oil and other reservoirs through various fracturing methods,
1. Inspection of appearance and logo
Check content: whether the appearance of the valve has defects, such as cracks, bubbles, dents, etc. Check signage, nameplate and finish for compliance.