1. The purpose of bottomhole cleaning units.
Designed to clean the bottom of the well from mechanical impurities, small metal objects from the bottom-hole zone of the well, as well as to create shock loads directed downward when eliminating sand plugs mechanical well cleaning devices (bottomhole cleaning units).
2. Climatic version.
Climatic version of the device-UHL, category of placement in operation I according to GOST 15150-69.