Hourly activities:
00:00 - 00:30: De-activated batteries in sonic vision tool. Torque tested 6. 5" jar to 20 KNM both left and right hand turn. OK.
00:30 - 02:00: Continued to POOH with 8 1/2" BHA from 30 m to OOH. Removed radio active source from ecoscope. Inspected bit and xceed. OK. Torque tested bit shaft on xceed to 17 KNM. No movement observed.
02:00 - 02:30: Broke 8 1/2" bit from xceed. Broke out xceed on the BTM sub of the ecoscope by mistake.
02:30 - 03:00: Broke out another sub on the ecoscope and made up a connection by hand to not damage the extender.
03:00 - 04:30: Broke out and lo the xceed. PU backup xceed and MU to 8 1/2" PDC bit. MU ecoscope and inserted radioactive source. MU and RIH with sonic vison and stetoscope to 42 m and re-activated batteries.
04:30 - 05:30: Changed elevator inserts to 5". PU and RIH with backup 6. 5" drilling jar to 70 m. Continued PU 8 1/2" BHA and RIH from 70 m to 99 m.
05:30 - 06:00: Dressed and installed ps21 slips. RIH with 8 1/2" BHA on 5" DP from 99 m to 303 m.
06:00 - 06:30: RIH with 8 1/2" BHA on 5" DP from 303 m to 506 m.
06:30 - 07:00: Installed XO and filled pipe. Broke circulation and pumped 2000 LPM 80 bar.
07:00 - 07:15: Performed shallow test of schlumberger tools at 2000 LPM 80 bar. OK. Meanwhile held tool box talk for RIH.
07:15 - 11:45: RIH with 8 1/2" BHA on 5" DP from 506 m to 1727 m. Changed to 5 1/2" handling equipment and RIH with 8 1/2" BHA on 5 1/2" DP from 1727 m to 2374 m. Filled pipe every 15 stnds.
11:45 - 13:00: Investigated why BX-ELEVATORS opened without command. Changed out BX-ELEVATOR.
13:00 - 13:30: RIH with 8 1/2" BHA on 5 1/2" DP from 2374 m to 2534 m. Filled pipe every 15 stnds.
13:30 - 14:45: MU TDS and filled pipe. Washed down with 8 1/2" BHA from 2534 m to 2595 m on 5 1/2" DP from derrick. Parameters 1600 LPM SPP 75 bar 50 RPM torque 9-11 KNM. Up weigh 150 MT rotational weight 138 MT down weight 128 MT. Lined up manifold to one stand pipe due to noise in mud signal. Took survey. Tagged 2595 m and observed 15 bar pressure increase.
14:45 - 16:00: Reduced flow and attempted to come down. Parameters 1100 LPM SPP 41 bar 50 RPM torque 9-11 KNM. Tagged 2595 m and observed 30 bar increase in pressure. Pressure dropped back to 41 bar after 1 m drilled. Drilled 8 1/2" hole from 2595 m to 2603 with 1. 25 SG OBM Drilling parameters 1100 LPM SPP 41 bar 50 RPM torque 16-18 KNM wob 8 MT ECD 1. 27 SG EMW. Observed torque increase and wob fluctuate from 6-12 MT when stabilizers passed 2595 m. Continued drilling 8 1/2" hole from 2603 m to 2616 with 1. 25 SG OBM Drilling parameters 2000 LPM SPP 123 bar 80 RPM torque 12-15 KNM wob 4-7 MT ECD 1. 28 SG EMW.
16:00 - 16:45: Reamed back from 2616 m to 2600 m before taking connection. Parameters 2000 LPM SPP 123 bar 80 RPM torque 12-15 KNM. No obstruction observed. RIH with no rotation to verify stabilizers were clear. POOH to 2590 m while pumping 200 LPM 1 bar. RIH and took 8 MT drag at 2595 m. PU to 2590 m and washed down to 2604 m without obstructions. Parameters 1000 LPM SPP 30 bar 50 RPM torque 8-10knm.
16:45 - 19:00: Reamed back from 2604 m to 2594 m. Parameters 2000 LPM SPP 118 bar 80 RPM torque 8-10 KNM. Attempted to RIH to TD but observed obstruction at 2610 m. Reduced flow and attempted to get past obstruction. Parameters 1100 LPM SPP 41 bar 50 RPM torque 7-10 KNM. Observed 35 bar pressure increase and wob increased while TDS was stationary PU above obstruction and changed flow/rotation. Parameters 1800 LPM SPP 100 bar 120 RPM torque 6-12 KNM. Worked past obstruction to 2614 m.
19:00 - 22:30: Worked past obstruction at 2614 m and tagged TD at 2616 m. Parameters 1800 LPM SPP 100 bar 120 RPM torque 6-12 KNM. Reduced string rotation to 80 RPM and reamed from 2616 m to 2576 m. While reaming down took weight at 2596 m and observed pressure of 15 bar. Worked past tight spots to 2516 m.
22:30 - 00:00: Circulated hole clean while reaming from 2616 m to 2610 m tools in open hole). Parameters 2150 LPM SPP 130 bar 140 RPM torque 8-10 KNM. Observed red fiber-glass material and swarf coming over the shakers.

24-hour summary: RIH with 8 1/2" BHA from 303 m to TD. Drilled 8 1/2" hole section from 2596 m to 2616 m with 1. 25 SG OBM. Reamed stand and worked through several tight spots. Circulated hole clean and pumped 5 m3 slug pill. Reamed stand and worked through several tight spots. Pumped second 5 m3 slug pill.