Products

VNIIGIS-ZTK has certificates of conformity for all its activities and a quality Management System certificate in accordance with ISO 9001:2015.
The ZTK-42EM-M MWD system with a wireless electromagnetic communication link is designed for monitoring and real-time path control of directional and horizontal wells and sidetracks drilled with mud motors.
Details

Description


Specific features and advantages:
  • Reduces well drilling time
  • Improves well targeting quality
  • Makes it possible to control the wellbore path for directional and horizontal wells with a curvature radius of up to 12-15 m
  • Allows for formation evaluation by gamma-ray logging
  • Allows static measurements

Technical Features

Parameters Values
Measuring range:
  • inclination angle, degrees
  • azimuth, degrees
  • toolface, degrees
  • natural gamma radiation exposure rate, kR/h
  • 0-180
  • 0-360
  • 0-360
  • 1-100
Measurement error, degrees:
  • inclination angle
    • azimuth in the range of inclination angles 3°, 7°; 173°, 177°
    • azimuth in the range of inclination angles 7°, 173°
  • toolface:
    • in the range of inclination angles 3°, 7°; 173°, 177°
    • in the range of inclination angles 7°, 173°
  • ±0,1
  • ±3
  • ±1,5

  • ±4
  • ±1
Maximum operating temperature, °С 120
Maximum hydrostatical pressure, MPa 60
Minimum internal non-magnetic drill pipe diameter, mm 57
Overall dimensions of the downhole tool modules, mm: diameter/length 42/ 1000

Downhole tool weight without casework, kg

50

The NDM-EM near-bit module is used as part of ZTS-42EM-M and ZTS-42KK type MWD systems.

The combination of measured parameters is defined by the customer.

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