WELL JET DEVICE FOR WEEL-LOGGING OPERATIONS

摘要

The inventive device comprises a body (1) which is provided with bypass windows (2) and a landing seat (3) used for mounting an insert (4) with a jet pump (5) thereon and a sealing unit (10). Said sealing unit is provided with a channel (11) used for passing a logging cable (12). The insert (4) and the sealing unit (10) consist of two parts, the jointing plane of which passes along the axial channel (11) of the sealing unit (10) and through the pass channel (6) of the insert. Said pass channel (6) of the insert is rectangular-shaped in the from of a groove at least in one part of the insert downstream of the sealing unit (10), thereby making it possible to mount facilities of a required size on the logging cable.