| 摘要 |
FIELD: measurement equipment.SUBSTANCE: invention relates to the field of electromagnetic geophysical survey and may be used to perform electromagnetic logging of wells. Substance: the device comprises a body (1), made in the form of a solid metal cylinder. In the body (1) there are at least two receiving (2) and two transmitting (3) antenna units, connected with an electronics unit (4). Inside the body (1) there are two longitudinal holes (5, 6), one of which (5) is made as through for letting through a drilling mud, and in the other one (6) there is an electronics unit (4).EFFECT: higher wear resistance of an instrument, its longer service life.4 dwg |
