US 11,753,933 B2
System and methods for estimating subsurface horizontal principal stresses in anisotropic formations
Brian Crawford, The Woodlands, TX (US); William C. Reese, Cypress, TX (US); Jordan A. Freysteinson, Cypress, TX (US); and Janelle M. Homburg, The Woodlands, TX (US)
Assigned to ExxonMobil Technology and Engineering Company, Spring, TX (US)
Appl. No. 17/650,922
Filed by ExxonMobil Technology and Engineering Company, Spring, TX (US)
PCT Filed Sep. 3, 2020, PCT No. PCT/US2020/070488
§ 371(c)(1), (2) Date Feb. 14, 2022,
PCT Pub. No. WO2021/087501, PCT Pub. Date May 6, 2021.
Claims priority of provisional application 62/928,790, filed on Oct. 31, 2019.
Prior Publication US 2023/0082833 A1, Mar. 16, 2023
Int. Cl. E21B 49/02 (2006.01); G01N 33/24 (2006.01); E21B 49/00 (2006.01); E21B 21/08 (2006.01); E21B 43/26 (2006.01); E21B 49/06 (2006.01)
CPC E21B 49/006 (2013.01) [E21B 21/08 (2013.01); E21B 43/26 (2013.01); E21B 49/06 (2013.01); G01N 33/24 (2013.01); G01N 2203/0075 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
measuring Young's moduli parallel ±150 and perpendicular ±15° to a transverse isotropy plane of a horizontal core sample from a subterranean formation;
measuring Poisson's ratios parallel ±15° and perpendicular ±15° to the transverse isotropy plane of the horizontal core sample;
inputting the measured Young's moduli and Poisson's ratios of the horizontal core sample into a 1-dimensional mechanical earth model (1-D MEM); and
calculating, using the 1-D MEM, a predicted total minimum horizontal stress (σh) and a predicted total maximum horizontal stress (σH).