Gravity MWD®

The Gravity MWD® system is the world’s first interference free survey technique. The Gravity MWD® system uses the modular HDS-1G tool where magnetic interference prevents the use of conventional MWD tools. The system is highly insensitive to downhole movement during survey allowing operation in environments where gyro surveying can be problematic.

Applications for the Gravity MWD® system are:

• Casing drilling
• Drill out of casing shoes/casing windows
• Re-entry work
• Geothermal wells with high magnetism
• Relief wells
• Anti-collision
• Multi-laterals
• For use in conjunction with WINNER passive ranging

Technical Data Sheets

• Technical Data Sheets (PDF)

Case Histories

• North Sea #1 (PDF)
• North Sea #2 (PDF)

Technical Discussions

• The First Use of Gravity Azimuth Drilling in Offshore Drilling
• Gravity Azimuth: A New Technique to determine your well path

Contact Sales by Region

• United States
• Brazil
• Canada
• Europe
• Middle East/North Africa

Related Links

• HDS-1G
• Survivor HDS-1G

• Directional Drilling
  • PathMaker 3DRS
  • 2DRS
  • PathFinder Drilling Motors
• Directional/Gamma MWD
  • HDS-1
  • HDS-1R
  • HDS-1G
  • Survivor HDS-1G
  • Survivor HDS-1R
  • Survivor HDS-1L
  • HDS-1S Split
• Gravity MWD
  • HDS-1G
  • Survivor HDS-1G
• Passive Ranging
  • Winner
• Gyro MWD
  • Gyro HDS-1
• At-Bit Inclination & Gamma Ray
  • PZIG
• Dynamic Pressure Module
  • DPM
  • Survivor DPM
• High Pressure/High Temperature
  • Survivor HDS-1
  • Survivor HDS-1R
  • Survivor HDS-1G
  • Survivor AWR
  • Survivor SDNSC
  • Survivor DPM
• Resistivity
  • AWR
  • Survivor AWR
  • CWR
• Density/Neutron
  • SDNSC
  • Survivor SDNSC
  • DNSC
• Sonic
  • e-Sonic
  • CLSS
  • SCLSS
• Drilling Formation Tester
• Pore Pressure
• PayZone Steering
• Real-time Communications
  • PathComms
  • 3rd Party Communications
• Formation Evaluation
  • PathFinder Analysis Logs Software
  • Post Processing Software
• Reliability Assurance
• Computing Center