US 12,332,230 B2
Prediction of cement longevity using digital cement modeling
Arpita P. Bathija, Houston, TX (US)
Assigned to SAUDI ARABIAN OIL COMPANY, Dhahran (SA)
Filed by ARAMCO SERVICES COMPANY, Houston, TX (US)
Filed on Oct. 12, 2022, as Appl. No. 18/046,079.
Prior Publication US 2024/0125755 A1, Apr. 18, 2024
Int. Cl. G01N 33/24 (2006.01); E21B 47/005 (2012.01); E21B 49/00 (2006.01); G01N 23/046 (2018.01); G01N 33/38 (2006.01); G06F 30/13 (2020.01); G06F 30/20 (2020.01)
CPC G01N 33/24 (2013.01) [E21B 47/005 (2020.05); E21B 49/00 (2013.01); G01N 23/046 (2013.01); G01N 33/383 (2013.01); G06F 30/13 (2020.01); G06F 30/20 (2020.01); G01N 2223/616 (2013.01)] 20 Claims
OG exemplary drawing
 
15. A system comprising:
a wellsite having a borehole penetrating a subterranean formation in a field; and
a data gathering and analysis system comprising:
a processor; and
memory storing instructions, when executed by the computer processor comprising functionality for:
acquiring computed tomography (CT) scan data of a metal-cement core sample and a cement-rock core sample that are associated with a borehole;
generating, based on the CT scan data of the metal-cement core sample and the cement-rock core sample, a three-dimensional (3D) image of a synthesized metal, cement, and rock core sample;
identifying, in the 3D image, structural pores and heterogeneous material segments in each of a metal section, cement section, and rock section of the synthesized metal, cement, and rock core sample, wherein the heterogeneous material segments comprise minerals, sand, and steel;
generating, by at least assigning corresponding physical properties to the heterogeneous material segments in the 3D image, a composite digital rock model, wherein the physical properties comprise Young's modulus, Poisson's ratio, and compressive strength of the minerals, sand, and steel;
generating, by at least upscaling the synthesized metal, cement, and rock core sample according to a geometry of the borehole, a multi-scale borehole digital model of the borehole;
simulating, using the multi-scale borehole digital model, a well operation condition of the borehole at different time points to generate a predicted time to cement failure, wherein the cement failure corresponds to when simulated elastic deformation in the cement section exceeds a limit based on the compressive strength in the cement section; and
facilitating, based on the predicted time to cement failure, the field operation.