Pulsation effects from pressure cycling, vibration, or reciprocating motion subject downhole tool seals to dynamic loading causing fatigue damage accumulating over thousands of cycles. Each pressure pulse stresses seal material, potentially initiating microscopic cracks propagating to failure. Mechanical vibration from drill string rotation or bottomhole assembly operation creates hig... https://globalsealstech.com/product-category/oil-gas-seals/downhole-completion-tools-seals/