Patent ID: 9238963
Filing Date: 2016-01-19
CPC Classification: E21B

Claim Text:
1. A method, comprising: deploying a bottom hole assembly in a borehole on coiled tubing, the bottom hole assembly comprising a sensor, an imaging electrode and a drill bit; drilling the borehole with the coiled tubing deployed bottom hole assembly; circulating a drilling fluid down the coil tubing and out through the drill bit and back to the surface via an annulus between the borehole and the coil tubing; acquiring with the sensor a first property measurement associated with a first radial portion of the borehole at a particular axial point; acquiring with the sensor a second property measurement associated with a second radial portion of the borehole at the particular axial point; determining based on the first and the second property measurements that the borehole comprises at the particular axial point a gas phase separated from a liquid phase; replacing, in response to the determining, the drilling fluid with a viscous conductive pill and circulating the viscous conductive pill down the coil tubing and to the surface via the annulus to displace the gas phase from the particular axial point; and acquiring with the imaging electrode an imaging measurement at the particular axial point as the viscous conductive pill moves to a position directly in front of the imaging electrode.