Low Friction Wireline Standoff

摘要

The low friction wireline standoff improves wireline cable performance during borehole logging operations. The use of low friction wireline standoffs ameliorates the effects of wireline cable differential sticking, wireline cable key-seating, and high wireline cable drags, by reducing or eliminating contact of the wireline cable with the borehole wall during the logging operation. The low friction wireline standoff comprises external wheels mounted on two finned half shells that clamp onto the wireline with precision cable inserts which are manufactured to fit a wide range of logging cables. The wheels reduce the cable drag down-hole resulting in lower surface logging tensions, aiding conveyance in deep and deviated wells.

主权项

1. A low friction wireline standoff, comprising:
adjacent opposing half shells; a plurality of external fins, wherein at least one of the plurality of external fins is disposed on each of the half shells; a wheel sub assembly disposed on at least one of the plurality of external fins, wherein at least one wheel is mounted within at least one wheel sub assembly; and a slotted wheel retainer that houses the at least one wheel in the wheel sub assembly.