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TABLE 4.1 <br /> NCPA Lodi STIG#1 <br /> Cleanout and Production by Nitrogen Lift <br /> 15-May-93 <br /> Average Cumulative <br /> Coil Tbg Nitrogen Tbg Head Wtr Prod Water <br /> Depth Rate Pressure Rate* Produced** <br /> Time (ft KB) (scfm) (psig) (gpm) (gallons) Comments <br /> 09:30 0 0 0 0 0 Displace tbg w/wtr <br /> 09:38 450 0 0 Stopped RIH <br /> 09:40 450 0 0 End displacement <br /> 09:42 450 300 0 Start Nitrogen <br /> 09:43 450 300 0 Start RIH coil tog <br /> 09:47 700 300 0 Well unloading wtr <br /> 09:50 900 300 0 Well unloading wtr <br /> 09:54 1120 300 0 Well unloading wtr <br /> 09:55 1175 300 0 N2 @ btm of tog <br /> 10:00 1442 300 0 Well unloading wtr <br /> 10:10 1442 300 0 22 860 Producing 63 gpm <br /> 10:14 1442 300 0 Producing 105 gpm <br /> 10:15 1442 300 First N2 in returns <br /> 10:25 1785 300 175 48/64 choke <br /> 10:35 2220 300 55 <br /> 10:45 2650 300 0 Producing 32 gpm <br /> 10:46 2695 400 Incr N2 rate <br /> 10:53 3000 400 50 Producing 42 gpm <br /> 11:03 3363 400 25 34 2,646 <br /> 11:10 3570 400 0 Low prod rate <br /> 11:25 4060 400 <br /> 11:35 4250 400 60 Wtr flow increased <br /> 11:40 4320 400 20 Producing 52 gpm <br /> 12:01 4370 400 <br /> 12:05 4370 400 50 <br /> 12:18 4420 400 <br /> 12:23 4420 400 250 Producing fine sand <br /> 12:35 4470 400 200 <br /> 12:39 4470 400 42 6,636 <br /> 12:54 4520 400 <br /> 13:07 4520 400 250 Prod coarser sand <br /> 13:13 400 225 RIH with CT <br /> 13:15 4564 400 CT on hard fill <br /> 13:25 4564 400 38 8,400 Sand cut out Chksn <br /> 13:50 4564 400 Pmpd wtr,c/o fill <br /> 14:00 4590 400 C/0 to 4590'(FC?) <br /> 14:04 4590 400 250 No choke on rtns <br /> 14:10 4590 400 9,282 <br /> 14:45 4585 400 50 76 11,928 Producing fine sand <br /> 15:35 4585 400 250 Sand coarse&fine <br /> 15:55 4585 400 200 Sand prod decrsng. <br /> 16:00 4585 400 Start filtering wtr <br /> 16:10 4585 400 200 Sand coarse&fine <br /> Page 1 of 2 -g <br />