US 11,946,361 B2
Setting two or more probes in a borehole for determining a one stop formation pressure gradient in the formation
Christopher Michael Jones, Katy, TX (US); Bin Dai, Spring, TX (US); and Anthony Herman van Zuilekom, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on May 25, 2022, as Appl. No. 17/824,280.
Application 17/824,280 is a continuation of application No. 16/651,893, granted, now 11,346,210, previously published as PCT/US2019/034521, filed on May 30, 2019.
Prior Publication US 2022/0282612 A1, Sep. 8, 2022
Int. Cl. E21B 47/06 (2012.01); E21B 47/04 (2012.01); E21B 47/13 (2012.01); E21B 49/08 (2006.01)
CPC E21B 47/06 (2013.01) [E21B 47/04 (2013.01); E21B 47/13 (2020.05); E21B 49/088 (2013.01); E21B 2200/20 (2020.05)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
receiving one or more well logs of formation properties in a geologic formation;
determining quality factors associated with formation pressure measurements performed at different depths in the geologic formation based on the one or more well logs, wherein the quality factors indicate likelihood of success of obtaining respective formation pressure measurements at the different depths in the geological formation;
positioning a formation testing tool with two or more probes in a borehole of the geologic formation based on the quality factors, wherein a given quality factor is associated with each probe position, and wherein the two or more probes are separated by a given distance along a body of the formation testing tool;
obtaining, by the two or more probes, respective formation pressure measurements in the borehole, wherein each formation pressure measurement is performed at a respective depth; and
determining a formation pressure gradient based on the formation pressure measurements and the given distance which separates the two or more probes.