What does hermeticity mean, how is it defined and tested, and what is the difference between hermetic and quasi-hermetic packaging?
Application example: Oil & Gas equipment
Oil & Gas equipment must not only survive, but function flawlessly under extreme pressure, vibrations, and temperatures. Failure is not an option for electrical and optical components as equipment deep underground is inaccessible for easy repairs or replacement due to prohibitively high costs.
Pressure sensors in Oil & Gas subsea production must withstand extremely harsh HPHT (high temperature, high pressure) environments and require a very long design lifetime of more than 25 years. In contrast, sensors in oil & gas exploration applications (such as Wireline, MWD, and LWD) are typically exchanged after several years. However, the pressure requirements in these downhole drilling applications are some of the harshest on earth. A potential weak point of these systems is the robustness and longevity of the electrical connectors and hermetic packages that are needed to transmit valuable data and information provided by the sensors.
The solution: 35,000 PSI pressure resistance and maintenance-free reliability
Unlike conventional thermoplastic oil & gas drilling connectors, SCHOTT Eternaloc® connectors are hermetically sealed using only inorganic, non-aging materials. Thanks to this, they reliably uphold mechanical stability at 35,000 PSI (2413 bar) design pressure and temperatures in excess of 260º C (500º F). These conditions were previously nearly impossible to withstand using conventional connectors.
In subsea oil & gas applications, electrical connectors from SCHOTT offer proven maintenance-free longevity even after many years of use that can prevent costly component replacements They are designed to withstand 20,000 PSI (1379 bar) pressure and temperature ranges from -170º C to +450º C (-274º F to +842º F).