Wellbore Surveying

  

Wellbore surveys provide definitive data that depict the position of a borehole or well path in three-dimensional space. Sperry Drilling services' wellbore surveying service delivers a comprehensive well positioning approach, generating the necessary risk versus reward analysis and survey program. Sperry can also help ensure survey executions per expectations and provide a one-stop shop for well position information.

  • Early analysis of well position requirements
  • Evaluation of risk versus reward and creation of a survey program
  • Help ensure wellbore construction surveys meet operator and well position expectations
  • Capture of lessons learned regarding wellbore placement
  • Load wellbore data into definitive database
  • Reporting and distribution of final survey
At-Bit Inclination (ABI™) Sensor
Compares inclination measured at the bit with inclination measured higher up at the MWD tool.
Directional Sensors
When drilling vertical, horizontal, or extended reach wells, obtaining accurate measurements of inclination and azimuth is a fundamental requirement. For these measurements, Sperry Drilling services offers three types of MWD directional sensors and the Evader® MWD gyro service.
Evader® Gyro-While-Drilling Service
Aids in orienting and steering the drillstring. Improves wellbore guidance to avoid collision with other wells on multi-well platforms. Immune to magnetic interference.
GABI™ Sensor - Gamma/At-Bit Inclination
LWD sensor provides at-bit azimuthal gamma ray and inclination measurements for improved geosteering and optimum well placement.

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