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Overcoming drilling challenges with accuracy and precision

Operators producing heavy crude oil and bitumen require in-situ thermal recovery techniques such as steam-assisted gravity drainage (SAGD) development to recover hydrocarbons. The Aurora™ surface-access magnetic ranging service is designed for SAGD applications where parallel stacked horizontal wells require to be drilled into the reservoir just a few meters apart with a high degree of accuracy. The service uses surface excitation to determine a ranging distance and direction relative to the drilling wellbore.

The Aurora service helps operators overcome challenges, including high infrastructure and operational costs, large pad design and wide slot spacing, uncertain well placement, conveyance challenges and removal of wireline conveyed tools that have temperature limitations.

Benefits

  • Reduce logistic challenges by no longer needed downhole access to wellbores
  • Remove need to run guide strings for conveyance
  • Reduce wireline costs by removing the need to convey a magnetic source downhole
  • Eliminate equipment and personnel from surface operations to reduce HSE risks and surface infrastructure costs
  • Lower carbon footprint due to reduced pad sizes
  • Maximize reservoir recovery through accurate well placement

Features

  • Connection to the target wellhead via the surface instead of downhole (limited access)
  • No wireline conveyance (removes tractor or e-coil)
  • Parallel ranging with realtime survey accuracy qualifiers
  • Readings integrated into the drilling bottomhole assembly (BHA)

Surface access simplifies ranging

An industry first, the Aurora service connects to the target wellbore via the wellhead. The surface access allows operators to eliminate the need for wireline ranging conveyance. Streamlining the ranging process helps reduce rig time, operation costs, and health, safety, and environmental (HSE) risks.

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