WellWatcher Neon DTS, DAS &
PT Gauge System

Multiple downhole measurements through one optoelectric cable

WellWatcher Neon DTS, DAS, and PT gauge system combines a fiber-optic line and an electrical conductor in a single permanent downhole cable. With the option of up to three fibers per cable, you can use one for DTS, a second for distributed acoustic sensing (DAS), and a third for deployment of an optical pressure gauge. The electrical conductor transmits data from downhole electrical PT gauges.

Simultaneous acquisition of distributed temperature and acoustic data through optical fibers and pressure and temperature data through electrical gauges improves reservoir understanding and helps increase productivity. The DTS data is typically used for allocation of injection or production and for optimization and diagnostics of the upper completion. The DAS data is used for vertical seismic profiles (VSPs) as well as leak detection and flow properties analysis. More than 130 systems are deployed worldwide, making WellWatcher Neon systems the industry leader.

Rapid diagnostics without interrupting production

Temperature measurements at about 0.5-m intervals along the length of the cable produce a profile of temperature effects along the production string and, when applicable, across the mudline. The cable can be interrogated continuously or intermittently to provide rapid wellsite diagnostics without interfering with production. At the surface, well profiles can be stored on site and viewed locally or securely transmitted via cable or wireless technologies.

Improved well and reservoir management

THERMA thermal modeling and analysis DTS software defines flow rate from individual zones by analyzing distributed temperature data in the wellbore and near-wellbore area, taking reservoir, fluid, well, and completion properties
into account.

Dramatic performance enhancement even at
high temperatures

The proprietary optical fibers are qualified at high temperatures and high levels of hydrogen concentration, proving their ability to combat the hydrogen degradation suffered by conventional fibers. The WellWatcher Neon system is rated 20,000 psi [138 MPa] and 365 degF [185 degC].

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Identify Flow Anomalies and Manage Zonal Flow Without Intervention

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WellWatcher Neon System Applications

  • Reservoir production or
    injection allocation
  • Borehole seismic (optical VSP)
  • Gas lift optimization and diagnostics
  • Downhole leak integrity and
    flow assurance
  • Riser integrity
  • Redundant measurements
    (optical and electrical)