Halliburton successfully developed a position-in-focus resistivity instrument while drilling

September 20 03:02:16, 2018

Resistivity borehole imaging logging is a basic requirement for modern formation evaluation, especially in high-angle/horizontal wells or complex geological environments. Due to the rotation of the drill string and extremely low mechanical drilling speed, uniform azimuth coverage and high density are facilitated. Sampling, so water-based mud logging while drilling is an attractive resistivity imaging logging method.

Halliburton's newly developed Azimuth Focusing Resistivity (AFR) instrument combines high-resolution resistivity imaging with deep-detection while drilling lateral logging to provide three measurements: omnidirectional lateral logging resistivity Data, formation resistivity image, resistivity measurement at the drill bit.

The AFR instrument has the following advantages: providing high-resolution resistivity images, detecting cracks, thin layers, and formation dip; visualizing AFR data in the Strata Steer 3D geosteering model to keep the wellbore in the pay zone; in highly conductive mud and high resistance In the formation, the log interpretation is improved with accurate resistivity values; the resistivity measurements at the drill bit indicate fluid type and lithology changes, which facilitate real-time decision making.