US 12,065,929 B2
Petro-steering methodologies during under balanced coiled tubing (UBTC) drilling operations
Ferney Geovany Moreno Sierra, Dhahran (SA); Ahmad Azly Bin Abdul Aziz, Dhahran (SA); Neil W. Craigie, Dhahran (SA); Faisal S. Al Reshedan, Dammam (SA); and Nawaf Aldossary, Dammam (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jan. 12, 2022, as Appl. No. 17/647,814.
Prior Publication US 2023/0221267 A1, Jul. 13, 2023
Int. Cl. E21B 7/04 (2006.01); E21B 44/00 (2006.01); G01N 23/20 (2018.01); G01N 23/223 (2006.01); G01N 33/24 (2006.01)
CPC E21B 7/04 (2013.01) [E21B 44/00 (2013.01); G01N 23/20 (2013.01); G01N 23/223 (2013.01); G01N 33/24 (2013.01); E21B 2200/20 (2020.05); G01N 2223/05 (2013.01); G01N 2223/076 (2013.01); G01N 2223/616 (2013.01)] 18 Claims
OG exemplary drawing
 
8. A system, comprising:
one or more memory modules;
one or more hardware processors communicably coupled to the one or more memory modules, the one or more hardware processors configured to execute instructions stored on the one or more memory modules to perform operations comprising:
obtaining rock fabric data using petrography, X-Ray diffraction (XRD), and X-Ray fluorescence (XFD);
integrating rock fabric data with dynamic productivity data in real time to identify patterns between the rock fabric data and dynamic productivity data, wherein a gas gain of the dynamic productivity data increases when a lateral well penetrates productive intervals; and
predicting gas rates and steering values in drilled intervals of underbalanced coiled tubing wells based on the patterns; and
petro-steering across laterals of the underbalanced coiled tubing wells at the productive intervals based on the predicted gas rates and steering values to maximize reservoir contact within productive intervals during drilling.