US 12,116,889 B2
Single side determination of a first formation fluid-second formation fluid boundary
Christopher Michael Jones, Houston, TX (US); Mehdi Ali Pour Kallehbasti, Houston, TX (US); Anthony Herman VanZuilekom, Houston, TX (US); and Darren George Gascooke, Houston, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Jul. 5, 2022, as Appl. No. 17/857,489.
Prior Publication US 2024/0011394 A1, Jan. 11, 2024
Int. Cl. E21B 49/08 (2006.01); E21B 49/10 (2006.01)
CPC E21B 49/0875 (2020.05) [E21B 49/10 (2013.01); E21B 2200/22 (2020.05)] 23 Claims
OG exemplary drawing
 
1. A method, comprising:
positioning, at a first location, a formation tester within a borehole, of a well site, proximate a subterranean formation;
making a hydraulic seal of the formation tester with a fluid bearing formation, wherein the first location has at least a first formation fluid and a second formation fluid, where the first formation fluid and the second formation fluid are different phases, the first formation fluid and the second formation fluid are fluids in the subterranean formation, and the phases comprise a hydrocarbon fluid phase or a water phase;
measuring at least one fluid gradient utilizing at least one fluid pressure of an immobile phase fluid by injecting, into the subterranean formation, an injectable fluid miscible with the immobile phase fluid, wherein the immobile phase fluid is the first formation fluid; and
using the at least one fluid gradient to determine a first formation fluid-second formation fluid boundary, wherein the first formation fluid-second formation fluid boundary is a multiple phase boundary, and the first formation fluid-second formation fluid boundary is added to a first set of characteristic parameters as a first formation fluid-second formation fluid boundary parameter.