Nowadays, the throttling condition of natural gas field often means very high working pressure difference, and the medium is gas-liquid multi-phase flow or even the wellhead medium of gas-liquid-solid multi-phase flow. Such condition will cause extremely serious damage to the valve structure. The traditional throttle valve is no longer suitable for this kind of working conditions, frequent maintenance work will cause adverse effects on production.
In the ordinary high pressure gas throttling condition, the multistage decompression technique has been successfully applied. However, in the throttling condition of the wellhead medium, because of the existence of liquid and solid phases, the ordinary multistage decompression inner parts will be destroyed quickly. Therefore, SJV combined with the multistage decompression technology and special material manufacturing technology, developed the all-tungsten carbide multistage throttle valve. The multi-stage decompression technology can effectively reduce the speed of the medium is throttled, so that the root of the destruction of the throttle valve is contained; At the same time, because of the application of full tungsten carbide internals, it can resist the erosion and wear of liquid phase and solid relative internals, greatly improve the service life of internals and process control accuracy.
Long-life internals mean longer continuous production time and less maintenance cost, which has positive significance to improve the efficiency of the factory. Because the internal component can maintain its working characteristics for a long time, it avoids the adverse impact on wellhead control performance caused by the distortion of working characteristics caused by internal erosion.
The product is widely used in oil drilling system is a key equipment in the field, also is our national patent products, because this product belongs to high parameter products, for the structure performance of the product and manufacturing process has strict requirements, so the use of the equipment in our country still relies on import, my company to the success of the product development, Making premises of suiting to future oil development products in China would establish a good foundation.
