Spinner Array Tool (SAT)

Description

MAPS - Multiple Array Production Suite brochure

Phase segregation occurs in many wells, including even those with little deviation from vertical; the lighter phases migrate to the high side of the well, the heavier phases to the low side. The individual phases flow at different velocities and possibly in different directions. Historically correlations have been used to estimate these from the total fluid velocity log. The Spinner Array Tool provides direct measurement of individual phase velocities. This makes it possible to provide quantitative estimates of the volumetric flow rate of each phase with a much higher degree of certainty and thus provide vital information for reservoir management.

The six miniature turbines are mounted on bowspring arms and use low friction jewelled bearings to reduce the mechanical threshold of the spinner and improve sensitivity to fluid flow. The tool outputs the direction and speed of spinner rotation and speed. A relative bearing measurement is incorporated to indicate the high side of the hole.

Features

• Cross-sectional velocity profiling.
• 3D imaging of velocity profile with MAPview software.
• Phase velocities in segregated fluid streams in deviated and horizontal wells.
• Option of larger, 0.6in diameter spinner.Memory and surface read out operations.
• Combinable with other Ultrawire^TM tools.
• Optional Rotational Alignment Sub (RAS).