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An operator deployed the FASTrak™ fluid analysis, sampling, and testing service on two complex J-profile wells in the Thai Binh marginal field in the Song Hong basin, Vietnam. This maiden run of the new technology proved highly successful by efficiently acquiring reservoir gas samples in a challenging environment.

The FASTrak service combines three distinct functions while drilling—accurate real-time formation pressure, real-time in-situ measurements of reservoir fluid properties, and downhole capture and retrieval of representative formation fluid samples.

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Challenges & Results


  • Obtain pressure tests in 8½-in. section that presented high chance for stuck tools
  • High over-balance conditions
  • Mixed mobility targets for pressure testing and sampling
  • Reservoir fluid identification and representative sampling to finalize completion intervals and deliver the wells timely


  • Performed 49 depth-station pressure tests
  • Identified reservoir fluid type and acquired six representative samples
  • Experienced no tool sticking events on the second well and no NPT
  • Saved operator rig time