Hourly activities:
00:00 - 00:30: POOH with wireline gyro.
00:30 - 01:00: Drilled 26" hole from bottom of rat hole at 208 m to 210 m, 4470 LPM, 133 bar, 60 RPM, 2-3 KNM. Made several attempts to take survey with MWD go.
01:00 - 01:15: Drilled 26" hole from 210 m to 215 m, 4450 LPM, 132 bar, 90 RPM, 6-9knm. At 1 15hrs while drilling 26" hole at 215 m one half kg) of a 2 piece top drive pipe handler stabbing guide and three x 200 grm) of the seven bolts securing same to top drive fell down 8 m from the top dive to the drill floor.
01:15 - 01:30: Impact of the dropped 5kg part of the stabbing guide was estimated as 400 joules. Barriers were in place at the rig floor, no personal were on the rig floor, and the objects fell down within the red zone. No personnel injury took place. Notification was given to statoil and MDN offshore and onshore management. Picked up off bottom from 215 m to to 213 m and held time out for safety meeting.
01:30 - 02:00: Evaluated situation and formulated forward plan.
02:00 - 03:00: Held pre-job meeting. Prepared permits and isolated drilling equipment on drill floor. Used work basket to inspect top drive.
03:00 - 03:30: Pulled back 26" BHA from 213 m to inside 30" conductor shoe at 202 m to 184 m. Racked back one 5 1/2" DP stand.
03:30 - 05:00: Lowered top drive to rig floor inspected same. Recorded details of dropped object incident. Re-installed pipe handler stabbing guide onto top drive.
05:00 - 06:00: M/u 5 1/2" DP stand and attempted to test communication to MWD tools, no go.
06:00 - 07:00: Drilled 26 hole from 215 m to 224 m,4500 LPM, 147 bar, 60 RPM, 3-6 KNM, gross ROP 11 m/hr, wob 1-2 MT. Evaluated situation and prepared to POOH. Meanwhile baker discussed MWD operational problems with onshore support and reported the MWD tool failure mode to be a failure that would not be possible to solve with the MWD tools in hole. Prepared to inspect drilling equipment in derrick prior to POOH 26" BHA to change out MWD tools.
07:00 - 10:00: Performed full derick and equipment inspection prior to POOH. Meanwhile mixed 1. 40 SG mud.
10:00 - 11:00: Displaced well with 30 m3, 1. 40 SG mud, 2500 LPM, 40 bar, 10 RPM, 1-2 KNM. POOH from botton at 224 m to 144 m.
11:00 - 11:30: Topped up well with 10 m3, 1. 40 SG mud, 2000 LPM, 40 bar.
11:30 - 12:00: Waited on prodution to complete shuting-in wells.
12:00 - 14:00: At 12 06hrs production confirmed wells f-7, f-12 and f-14 shut-in. POOH 26" BHA from CTS funnel at 144 m to 37 m, observed by ROV.
14:00 - 15:00: Chanded handling equipment. POOH 26" BHA and inspected bit, observed no indication of junk in hole.
15:00 - 17:30: RIH 26" motor steerable BHA to 32 m and resumed braking down same to 22 m. Gyrotrack tested and found to be re-runable
17:30 - 19:00: Seal ring between top of ontrack and modular stabilizer observed to be out of position. Directional driller advised that this could be caused by a leaking and/or exploded lithium battery within the ontrak tool, with risk of personal being exposure to toxic gas and liquids. All personnel were immediately moved off the drill floor to a safe area in the dog house. Barriered off rig floor. Evaluated situation baker discussed with onshore HSE organisation. Informed offshore and onshore management.
19:00 - 23:00: Performed SJA meeting and formulated plan with involvement of baker onshore organization and technical management.
23:00 - 00:00: Prepared permits and held pre-job/sja meeting with all involved personal.

24-hour summary: Drilled 26" hole from 208 m to 224 m. POOH from 224 m to surface due to MWD tool failure. Next 24 hrs. M/u new 26" motor steerable BHA. RIH drill and orientate 26" hole from 224 m.