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The downhole tool sliding sleeve seal, we usually call it sliding sleeve or V stack, is a two-way elastic energy storage combination seal. It is a commonly used sealing element in downhole tools for oil production. When the sliding sleeve is pushed to the proper position, the sliding sleeve activates the sealing function to seal off the upstream, so that the fracturing work can be carried o...
According to different materials, hydraulic rotary seals must have the following performance characteristics: 1. The seals has certain mechanical and physical properties: such as tensile strength, constant elongation strength, and elongation; 2. The material structure of the seals has a certain degree of elasticity, the hardness is verified, and the compression permanent deformation is small; 3.3....
V-Packing (Vee Packing), also called V-Stacks, chevron packings and parachute packing. It is a highly adaptable sealing product. They are used in a wide range of applications, including oil drilling, well downhole, fracturing pumps and presses, construction equipment, industrial machinery, farm machinery, off road equipment, service station equipment, and hydraulic valves. They are available in va...
Polyster resin fabric wear strip is manufactured by a patented process, using a woven fabric reinforced polyester resin material, and is proven to be compatible with a wide range of fluids including mineral oils, water based fluids, and phosphate esters. The construction of the bearing strip incorporates micro-indentations on the surface to trap fluid and provide built-in lubrication to the bearin...
Backup Ring (anti-extrusion rings) fit in the gland between the seal and the clearance gaps to provide zero clearance. Back-up rings provides additional resistance support to the seal and minimizes the risk of the seal being squeezed out of its housing under pressure. Although they do not be designed with sealing function in themselves. They used with o ring play an important role in whole sealing...
PEEK is a colorless organic thermoplastic semi-crystalline polymer with excellent mechanical and chemical resistance properties. It’s high-resistance to terminal degradation makes it useful in oil and gas environments. The processing conditions used to mold PEEK can influence the crystallinity and hence the mechanical properties. As with PTFE, PEEK has several benefits for oil and gas companies. I...
V-packings and Chevron Stacks are used in various Oilfield Downhole equipment such as various Valves etc. They significantly decrease the hazard of hidden gaps, flow lines, and inlet expansions. They are extremely suitable for usage in medium to heavy duty applications. V-packings and Chevron Stacks can withstand temperatures of between -45°C to +260°C, and pressure of up to 30,000 PSI and beyond ...
There are many factors that can cause RGD damage. It mainly includes the following aspects: Type of gas All types of gases can cause RGD damage, but H2S and CO2 have high permeation rates, so the effects of RGD can be particularly problematic. Due to aggressive carbon dioxide and hydrogen sulfide gas, rapid gas decompression (RGD) leads to degradation and collapse of polymer components, while putt...
JST Seals manufactures spring energized seals of different materials. Spring energized seals are composed of two parts: a PTFE or polymer jacket and a corrosion-resistant, metal energizer spring. comparing to other seals, the seals provide better performance over elastomeric seals and metal gaskets that typically fail. Its sealing jacket is a U-shaped shell made of high-performance non-metallic po...
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