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Data acquisition to monitor pressure buildup in a shut-in well

 

Technical Challenge:

Data acquisition to monitor pressure buildup in a shut-in well.

Well Type:

4 ½-in coal seam gas (70 degree deviation, 250 degF).

Peak Solution:

2.2-in Peak eSetting tool and Hi-Ex Gauge Hanger slim high-expansion gauge hanger tool deployed into 4 1/2 in 18.8 lbm/ft tubing

Customer:

International gas explorer/producer, onshore Queensland

The Challenge:

The well consisted of heavy-walled tubing resulting in a restricted ID for this size of tubing. As a result the client required a hanger device with minimal restriction to flow in order to attain accurate data. Due to both the well location and time constraints a slickline deployed nonpyrotechnic gauge hanger system was the preferred solution in order to minimize OPEX. A new solution was required to ensure rapid, successful completion of the data acquisition exercise.

Considerations:

The following key requirements and concerns were highlighted by the customer:

  • Slickline deployment preferred method
  • Pinpoint data acquisition required
  • Safety concerns raised with use of explosives and transportation licences
  • Required a cost-efficient solution
  • Required rapid mobilization
  • Long shut-in time

Summary:

The Hi-Ex Gauge Hanger tool was set on slickline on the first run using the Peak eSetting tool which allowed it to be placed as close as is desired to the area of interest for pinpoint data acquisition.

The slim design of the Hi-Ex Gauge Hanger tool minimizes restriction to flow enabling better quality data to be recorded during production and/or injection conditions.

The Peak eSetting tool, used exclusively with the Hi-Ex Gauge Hanger tool provided a reliable deployment technique without the need for pyrotechnics, pressurized nitrogen or complex hydraulic pumps – ideal for remote locations.

All gauges were successfully set within a four-hour period.

Value to Customer:

All operations were carried out safely and efficiently:

  • Zero harm to personnel
  • Significant cost savings
  • Pinpoint data acquisition
  • Specialist Peak technician present onsite to ensure successfully deployment
  • No radio-silence requirement, zero NPT
  • Disposable, low-cost electronics allows for simple field redress
  • Range of preprogrammed countdown times provided operational flexibility and control
  • The gauge hanger can be set in a range of tubing sizes from 4 1/2 in through to 9 5/8 in

 

Product Codes: 341, 342