US 12,086,515 B2
Well planning based on hazard predictive models
Valerian Guillot, Montpellier (FR); Florian Karpfinger, Dhahran (SA); Ali Ozbek, Cambridge (GB); Riadh Boualleg, Stonehouse (GB); and Ling Li, Stonehouse (GB)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Appl. No. 17/999,291
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed May 20, 2021, PCT No. PCT/US2021/033316
§ 371(c)(1), (2) Date Nov. 18, 2022,
PCT Pub. No. WO2021/236877, PCT Pub. Date Nov. 25, 2021.
Claims priority of provisional application 63/043,970, filed on Jun. 25, 2020.
Claims priority of provisional application 63/027,464, filed on May 20, 2020.
Prior Publication US 2023/0195952 A1, Jun. 22, 2023
Int. Cl. E21B 7/04 (2006.01); E21B 41/00 (2006.01); E21B 44/00 (2006.01); E21B 49/00 (2006.01); G06F 30/13 (2020.01); G06F 30/27 (2020.01)
CPC G06F 30/27 (2020.01) [E21B 7/04 (2013.01); E21B 41/00 (2013.01); E21B 44/00 (2013.01); E21B 49/00 (2013.01); G06F 30/13 (2020.01); E21B 2200/20 (2020.05); E21B 2200/22 (2020.05)] 15 Claims
OG exemplary drawing
 
1. A method for planning a wellbore, the method comprising:
obtaining geological data corresponding to a geographic area including plurality of offset wellbores;
obtaining drilling operational data from drilling of the plurality of offset wellbores;
identifying hazard events that occurred during drilling of the plurality of offset wellbores, wherein the hazard events include drilling fluid loss events in the plurality of offset wellbores;
correlating the hazard events with geological features in the geological data and with the drilling operational data;
building a hazard predictive model based on the correlating of the hazard events with the geological features and the drilling operational data, wherein the hazard predictive model predicts drilling fluid loss events in the wellbore; and
developing a well plan based on the hazard predictive model.