Jilin Oilfield's Closed Core Sampling Guides the Potential Exploration in the Old Area

The causes of leakage at the valve sealing surface

The sealing surface of a valve is its core component. The leakage forms of the sealing surface can generally be classified into several types, namely, leakage from the sealing surface, leakage from the connection between the sealing ring and the valve body,

How to choose the connection method between valves and pipes?

Valves are usually connected to pipes in various ways such as threaded, flanged, welded, clamped, and ferrule wafer. So, how should one choose when using and selecting them?

The Changqing Heshui Oilfield Accelerates the Profitable Development of Tight Oil

On August 5th, with the successful completion of a horizontal well at the Guping 41-52 well site, the number of wells in the Changqing Heshui Oilfields tight oil block-level horizontal well

Tips for Preventing Freezing of Steam Traps

Huayou Hanwei was awarded the "Outstanding Construction Unit" certificate for the 2025 Phase II major maintenance of CNOOC Huizhou Petrochemical - Professionalism builds quality, strength earns recognition.

Recently, Tianjin Huayou Huanwei Technology Development Co., Ltd. (hereinafter referred to as "Huayou Huanwei") received an honorary certificate from CNOOC Huizhou Petrochemical Co., Ltd.

Huayou Hanwei was awarded the "Outstanding Award for Excellent Collaborative Quality Service" by ExxonMobil (Huizhou) Chemical Plant - Professional Support for the Safe Startup of International Chemical Giants

Tuha Oilfield: Accelerate Technological Innovation to Reduce Drilling and Fracturing Costs

Common Faults and Elimination Methods of Pneumatic Butterfly Valves

I. Testing and Adjustment of Pneumatic Butterfly Valves 1. Before leaving the factory, all components of butterfly valves, whether manual, pneumatic, hydraulic or electric,

Efficient Production Enhancement of Coalbed Methane in Huabei Oilfield