pgs4dSubsurface Monitoring Requires Strict Desn Thresholds. 4D seismic monitoring of reservoir depletion, often assisted by enhanced recovery processes, relies upon the acquisition34 Followers, 190 Following, 129 Posts - PGS4D OFFICIAL (@pgs4d_) on : ️MIN DEPO 10K & MIN WD 50K ️SLOT ️TOGEL ️SPORTBOOK ️LIVE CASINO ️SABUNG