US 12,134,949 B2
Processes for injection of fluids into a wellbore
Francois Xavier Dubost, Villahermosa (MX); Magdy Samir Osman, Bucharest (RO); Ashers Partouche, Katy, TX (US); Morten Kristensen, Lysaker (NO); Hadrien Dumont, Paris (FR); and Adriaan Gerard Gisolf, Voluntari (RO)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Dec. 21, 2022, as Appl. No. 18/069,365.
Prior Publication US 2024/0209728 A1, Jun. 27, 2024
Int. Cl. E21B 33/124 (2006.01); E21B 17/02 (2006.01); E21B 23/06 (2006.01); E21B 47/11 (2012.01); E21B 49/08 (2006.01)
CPC E21B 33/124 (2013.01) [E21B 17/023 (2013.01); E21B 23/06 (2013.01); E21B 47/11 (2020.05); E21B 49/083 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A process comprising:
placing a downhole apparatus at a desired station depth within a wellbore;
attaching a cable to the downhole apparatus from an up-hole environment;
performing a first test of a saturation level of a geological stratum at the desired station depth;
setting a dual packer to seal a space between at least a portion of the downhole apparatus and an inner surface of the wellbore;
introducing a fluid to the downhole apparatus through a drill pipe,
circulating at least a portion of the fluid through a first line from a circulating sub to a bottom outlet;
creating a suction in a dual packer interval from an upper inlet into a secondary flowline;
replacing at least a portion of fluid from the dual packer interval with the portion of fluid circulated;
taking fluid from the dual packer interval;
determining whether the fluid taken from the dual packer interval is clean;
in response to a determination that the fluid taken from the dual packer interval is clean, operating a pump powered by an onboard power module to inject at least a portion of the fluid from the downhole apparatus into the geological stratum at the desired station depth, the onboard power module being included in the downhole apparatus and in electrical communication with the cable;
performing a second test of the saturation level of the geological stratum at the desired station depth; and
determining a change in the saturation level from the first test to the second test.