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Anchor Type Weight Indicators
Anchor Type Weight Indicators

Accurate and reliable indications of hook load and weight on bit are essential to drillers for the efficient control of ROP and hole direction. The hydraulic deadline anchor type weight indicator is a standard of the industry, and M/D Totco weight indicators set the standards for quality, accuracy, and reliability against which all others are judged.

 

Accurate and reliable indications of hook load and weight on bit are essential to drillers for the efficient control of ROP and hole direction. The hydraulic deadline anchor type weight indicator is a standard of the industry, and M/D Totco weight indicators set the standards for quality, accuracy, and reliability against which all others are judged.

NOV M/D Totco has weight indicator models designed to work in conjunction with all industry-standard deadline anchors using either tension or compression hydraulic load cells. Indicator systems are supplied as either portable box-mount instrument systems or panel-mounted as part of a driller's console.

Each system accurately senses tension in the deadline and uses this to indicate hook load and weight on bit. Many models have separate pointers for both hook load and weight on bit. In addition, integral circular hydraulic recorders are also offered on several models.

 

Standard features

  • Unique friction-free diaphragm-type hydraulic load cell withstands the toughest drilling and environmental conditions
  • Complete with high pressure hose assembly and disconnect fittings
  • Needle-type dampers to eliminate hydraulic shock loads and extreme pointer oscillation during rough drilling or jarring operations
  • 4:1 vernier movement for sensitive bit weight indications

Type 200, AWE-Series

  • For deadline loads to 200,000 lb
  • 10, 12, 14, and 16 lines strung
  • E551 compression load cell
  • 16" indicator

Type 150, AWE-Series

  • For deadline loads to 150,000 lb
  • 10, 12, 14, and 16 lines strung
  • E551 compression load cell
  • 16" dial indicator

Type 125, AWE-Series

  • For deadline loads to 125,000 lb
  • 10, 12, 14, and 16 lines strung
  • E551 compression load cell
  • 16" dial indicator

Type EB, AWE-Series

  • For deadline loads to 100,000 lb
  • 8, 10, 12, and 14 lines strung
  • E551 compression load cell or E80 Sensater tension load cell
  • 16" dial indicator

Type E, AWE-Series

  • For deadline loads to 75,000 lb
  • 6, 8, 10, and 12 lines strung
  • E551 compression load cell or E80 Sensater tension load cell
  • 16" dial indicator

Type D, AW-Series

  • For deadline loads to 50,000 lb
  • 6, 8, 10, and 12 lines strung
  • E543 compression load cell or E80 Sensater tension load cell
  • 16" dial indicator

Type FS, AWA-Series

  • For deadline loads to 40,000 lb
  • 4, 6, 8, and 10 lines strung
  • E542 compression load cell or E160A Sensater tension load cell
  • 12" dial indicator with actual bit weight pointer or 8" fluid filled indicator with target pointer for bit weight

Type G, AWG-Series

  • For deadline loads to 30,000 lb
  • 4, 6, and 8 lines strung
  • E190A compression load cell
  • 12" dial indicator with target pointer