JUSLA13135 High Temperature Logging With DC Well Tractor

High temperature logging with DC Well Tractor®

  • MAX. DEVIATION
    94.20°
  • MAX. TEMPERATURE
    335°F (168°C)
  • TOTAL DISTANCE TRACTORED
    2,868 ft

Background

An operator needed to perform a casing inspection log for scale build-up across the perforations of a high temperature, cased hole, horizontal well, in the Haynesville Shale. Having heard of our e-line deployed conveyance solution being used in similar and higher temperatures than this case of 335°F (168°C).

Operation

For this job Welltec® proposed to run a Well Tractor® with the new, high temperature DC electronics. Prior to the job it was successfully tested at surface in combination with the e-line provider’s equipment and cable. A temperature strip was inserted into the electronics’ housing to record the maximum temperature reached in the well.

The toolstring was run in hole with the Well Tractor and logging tool to the kick-off point at about 11,581 ft (3,530 m), at which point the operator began pumping well fluid at approximately one bpm to help keep the temperature within limits. The Well Tractor was engaged and conveyed the toolstring ~1000 ft (~300 m) further before activating the ultrasonic tool for the caliper and bond information required around the perforations.

Achievements

This job was the first operational run of the newly designed, high temperature DC electronics for the Well Tractor. The operator was able to meet his objective and acquire data across the perforations to gain a better understanding of the downhole conditions and the scale buildup levels.

Well Tractor and DC electronics handled the high temperatures with no complications, proving its applicability to extreme environments.

Tools Applied

  • Well Tractor®

    The Well Tractor® was regarded as a revolution in the industry when it was introduced in the 1990’s. It enables operators to extend the reach of traditional e-line deployment into highly deviated and horizontal wells.

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