COMPLEX FOR GEOPHYSICAL AND HYDRODYNAMIC EXPLORATION OF PRODUCING HORIZONTAL WELLS

摘要

A complex according to the invention is designed as an assembly lowered along tubings (1) connected by collars (2), comprising a logging cable (3), a propeller (4), a fastening device (5) for fastening the propeller to the logging cable, an extension cord (6), an electric connection device (7) connected to a surveying instrument (8). Mounted between the propeller fastening device (5) and the upper collar (9) of the propeller (4) is a tube tension preventer (10) including a protective element (11) and an emergency withdrawal coupling (12). An emergency withdrawal funnel (13) is mounted in the bottom part of tubings (1). The destroyable protective element (11) is designed so as to become destroyed in case of reaching axial forces that are 20-25 kN lower than the breaking load of the logging cable (3) used. The emergency withdrawal coupling (12) has a cross-like cross-section with a rib diameter exceeding the inside cross-section of the emergency withdrawal funnel (13). The tubular part of the electric connection device (7) includes a circulation valve (18) to provide pumping of borehole fluid through a contact cable head (19) fixed on the logging cable (3). The technical result of the invention is broadening of functional capabilities due to elimination of emergency situations with tubings, the instrument and the cable and related to withdrawal of the devices - the logging cable, the instrument and the tubings - in case any emergency occurs.