US 12,000,277 B2
Water detection for geosteering in directional drilling
Alberto F. Marsala, Dhahran (SA); and Eric Donzier, Versailles (FR)
Assigned to Saudi Arabian Oil Company, Dhahran (SA); and Openfield Technology, Versailles (FR)
Appl. No. 17/290,051
Filed by Saudi Arabian Oil Company, Dhahran (SA); and Openfield Technology, Versailles (FR)
PCT Filed May 26, 2020, PCT No. PCT/IB2020/000529
§ 371(c)(1), (2) Date Apr. 29, 2021,
PCT Pub. No. WO2021/240196, PCT Pub. Date Dec. 2, 2021.
Prior Publication US 2022/0307372 A1, Sep. 29, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 49/08 (2006.01); E21B 7/04 (2006.01); E21B 21/08 (2006.01); E21B 44/00 (2006.01); E21B 47/07 (2012.01); E21B 47/10 (2012.01); E21B 47/13 (2012.01); E21B 47/26 (2012.01)
CPC E21B 49/087 (2013.01) [E21B 7/04 (2013.01); E21B 21/085 (2020.05); E21B 44/00 (2013.01); E21B 47/07 (2020.05); E21B 47/10 (2013.01); E21B 47/13 (2020.05); E21B 47/26 (2020.05); E21B 2200/20 (2020.05)] 25 Claims
OG exemplary drawing
 
1. A method for geosteering in directional drilling, comprising:
determining a signal-to-noise ratio (SNR) for an electromagnetic communication between devices on a bottom hole assembly;
determining a distance to water based, at least in part, on the SNR;
determining adjustments to geosteering vectors for the bottom hole assembly based, at least in part, on the distance to water; and
making the adjustments to the geosphere vectors to change a trajectory of a wellbore.