US 11,692,400 B2
Formation evaluation based on pulse power electrode discharge measurements
Matthew Eugene Cammack, Houston, TX (US); and Boguslaw Wiecek, Kingwood, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Mar. 24, 2021, as Appl. No. 17/211,817.
Prior Publication US 2022/0307323 A1, Sep. 29, 2022
Int. Cl. E21B 7/15 (2006.01); E21B 49/00 (2006.01); E21B 44/00 (2006.01)
CPC E21B 7/15 (2013.01) [E21B 44/00 (2013.01); E21B 49/003 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method comprising:
determining a first characteristic of a first discharge of electrodes of a pulse power drilling assembly in a borehole of a subterranean formation, wherein the first characteristic is based on a measurement of the first discharge;
determining a second characteristic of a second discharge of the electrodes, wherein the second discharge occurs after the first discharge, and wherein the second characteristic is based on a measurement of the second discharge;
determining that a difference between the first characteristic and the second characteristic has exceeded a threshold value; and
determining a boundary layer of the subterranean formation based on the difference between the first and second characteristics of the first and second discharges.