JNO16.2015 CLEANING AND SETTING STRADDLE

Cleaning and setting straddle

  • TOTAL DISTANCE TRACTORED
    7,497 ft
  • MAX. WELL DEPTH
    9,386 ft
  • MAX. DEVIATION
    70º
  • MAX. TEMPERATURE
    162ºF
  • MAX. PRESSURE
    300 BARS

Background

A client needed a well cleaned in Norway, so the zone below could be perforated and a 50 ft straddle assembly set. The technical solution was chosen due to the Well Cleaner’s capacity to clean in various IDs; in this case 4” and 3.62” in one run. Furthermore, the Well Stroker’s pushing/pulling force was optimal for ensuring that the seal stack of the straddle assembly was correctly set against the NO-GO.

Operation

The operation took four runs:
1st Run: Cleaning the designated area for packer element and sealing stack using a 218 Well Tractor and Well Cleaner configured with a Well Brush*.

2nd Run: Ensuring the seal stack was properly set in real profile/NO-GO with a 318 Well Tractor and 318 Well Stroker.

3rd Run: Conveying a 25 ft 2 7/8” gun with a 318 Well Tractor.

4th Run: Ensuring the seal stack entering completely into the seal bore/NO-GO by using a 318

Well Stroker in conjunction with a 318 Well Tractor; the straddle assembly was pushed downwards with about 15,000 lbs pre-set force.

Achievements

Performing this operation on wireline saved this operator approx. USD 1.5 million.

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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  • Well Stroker®

    The Well Stroker® can push or pull multiple times in the same run irrespective of the depth and deviation. It delivers up to 100,000 lbs of axial force downhole using a bi-directional hydraulic ram.

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  • Well Cleaner® Wishbone Honer (WBH)

    The Well Cleaner® Wishbone Honer (WBH) is designed to clean deposits from tubular walls over intervals where the internal diameter changes, such as mandrels and profiles.

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  • Well Cleaner® Power Suction Tool

    Our clean-out solutions ensure access into new wells and optimized production from old wells: removing sand and debris; cleaning SSSV seats; clearing obstructions; eliminating scale deposits; accessing isolation valves.

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