What is the packaging of downhole high-temperature lithium batteries? The packaging is designed with insulating materials to prevent short-circuiting and ensure that the battery terminals are adequately protected. Because lithium batteries may be at risk of fire or explosion under certain conditions, the outer packaging is made of flame retardant materials and includes an explosion-proof design. The outer package is…

How do you control the cost of using downhole batteries? Selection of high energy density and long life battery technology reduces the frequency of replacement and lowers long-term costs. At the same time, the parallel equalization control technology can curb the phenomenon of circulating current and control the current equalization to improve the capacity utilization and life of the battery…

What are the technical standards for downhole batteries? Strict requirements for the battery’s energy density, high temperature resistance and other performance indicators. Highly detectable explosion protection technology for battery safety performance. Classification, technical requirements, test methods, inspection rules and other applicability of underground electrical equipment. The level of technology, product quality, energy saving and comprehensive utilization of resources, environmental protection,…

What are the measures for waterproofing and moisture-proofing downhold batteries? Place desiccants (e.g., vapor barrier with quicklime) inside batteries and other electrical equipment to absorb any moisture that may be present. Improve the drainage system of underground distribution points and substations to ensure that there is no accumulation of water around electrical equipment. For locations where wetness cannot be avoided,…

What are the monitoring components of a downhole battery? The Battery Management System (BMS) is the core of monitoring the battery status and is responsible for real-time monitoring of the battery’s voltage, current, temperature, and other parameters to ensure that the battery operates within a safe range. Temperature sensors, voltage sensors and current sensors for real-time acquisition of battery status…

How can downhole batteries be better used in MWD systems? The physical size and shape of the battery should be matched to the battery compartment of the MWD system to ensure that it can be properly installed and secured. When assembling batteries, they need to be handled with care to ensure that the positive and negative terminals are correctly connected…

What happens when an downhold battery is punctured in an accident? There is a high probability that thermal runaway will occur in downhole batteries in the event of a puncture, and the positive and negative materials inside the battery may be short-circuited, resulting in an uncontrolled chemical reaction inside the battery that generates a large amount of heat and gas….

What are the advantages of downhole batteries in applications? Energy density is much higher than traditional lead-acid batteries, which means that lithium batteries can deliver more power for the same volume or weight. With a large thermal stability range, it is not easy for thermal runaway to occur, which ensures the normal operation of the equipment, so it is safer…

What is the relationship between MWD and downhole batteries? MWD systems are required to operate in high-temperature and high-pressure downhole environments with very high power requirements. The downhole battery is designed to adapt to this harsh environment. It is able to work stably at high temperatures and provide the required power for the MWD instrument. In practice, to ensure continuous…

How fast do lithium batteries react at high temperatures downhole? During normal operation, the battery temperature will gradually increase due to the heat generated by internal electrochemical reactions. If the Battery Management System (BMS) is not able to control it effectively, or if there are manufacturing defects in the battery, it may lead to a further increase in battery temperature….