FIELD: oil industry.
SUBSTANCE: invention relates to oil industry, in particular to devices for delivering geophysical instruments to a horizontal wellbore for its investigation. Device includes a body with a conical tip and flushing channels, a fiber optic cable fixing unit and a process pipe connection unit. Fiber optic cable is passed outside the pipe string and is equipped uniformly along the length of the horizontal wellbore with sensors to measure the required parameters. Body is provided on the outside along the perimeter with rigid centralizers. Pipe string is equipped with a hollow nipple at the end. Connection unit is made in the body with offset relative to the cable fixing unit with a possibility of an airtight slip joint connection limited by an abutment to the nipple of the pipe string. Flushing water-jet channels are located near the top of the cone tip and are communicated with the connection unit.
EFFECT: technical result is to increase the efficiency of the device.
1 cl, 2 dwg
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Authors
Dates
2018-04-04—Published
2016-09-20—Filed