Daily Drilling Report
Well: NO 15/9-F-12
Report period: 2007-08-11T00:00:00+02:00 to 2007-08-12T00:00:00+02:00
Wellbore info:
dTimSpud: 2007-03-15T00:00:00+01:00
dateDrillComplete: 2007-08-26
daysBehind: 23.5
operator: Statoil
rigAlias: name: MÆRSK INSPIRER
name: 369304
Status:
dTim: 2007-08-12T00:00:00+02:00
dTimDiaHoleStart: 2007-08-11T15:00:00+02:00
diaHole: 12.25
distDrill: 3.5
elevKelly: 54.9
fixedRig: false
forecast24Hr: Drill 12 1/4" hole to 2760 m MD. Circulate hole clean and take pressure points i Ty formation.
hpht: 0
md: 2576
mdCsgLast: 1357
mdDiaHoleStart: 2576
mdPlanned: -999.99
mdStrengthForm: 2506
presTestType: formation integrity test
reportNo: 60
ropCurrent: -999.99
strengthForm: 1.48
sum24Hr: Cleaned out rathole with 1.35 sg WBM and drilled 3 m new formation. Circulated and performed FIT to 1.48 sg EMW. Displaced well to 1.35 sg OBM. Trouble-shot problem with MWD transmision of data. Drilled 12 1/4" hole from 2576 m to 2640 m MD.
tightWell: 0
tvd: 2485.2
tvdCsgLast: 1333
tvdStrengthForm: 2419.5
waterDepth: 91
wellheadElevation: 138.7
Drilling fluid:
dTim: 2007-08-11T11:30:00+02:00
density: 1.38
locationSample: Active pit
md: 2572
mudClass: water based
presBopRating: 690
pv: 31
type: HPWBM
visFunnel: -999.99
yp: 8.5
dTim: 2007-08-11T18:00:00+02:00
density: 1.35
locationSample: Flowline
md: 2576
mudClass: oil based
presBopRating: 690
pv: 31
tempHthp: 120
type: OBM-Standard
visFunnel: -999.99
yp: 10
dTim: 2007-08-11T22:00:00+02:00
density: 1.35
locationSample: Active pit
md: 2576
mudClass: oil based
presBopRating: 690
pv: 26
tempHthp: 120
type: OBM-Standard
visFunnel: -999.99
yp: 6
Pore pressure:
dTim: 2007-08-12T00:00:00+02:00
equivalentMudWeight: 1.05
md: 2520
readingKind: estimated
dTim: 2007-08-12T00:00:00+02:00
equivalentMudWeight: .73
md: 2640
readingKind: estimated
Survey stations:
azi: 125.92
dTim: 2007-08-12T00:00:00+02:00
incl: 22
md: 2577
tvd: 2486
Activities:
comments: Drilled out shoe track and shoe with 1.35 sg WBM from previous section, 2490 lpm, 125 bar, 70 rpm, 16-29 kNm, 0-0.5 MT WOB. Started to see WOB (3-4 MT) from 2503.9 - 2505.9 m. Cleaned shoe track stepwise in 1-2 m steps. Spaced out with one single to have only one connection during cleaning of rate hole. Pulled through shoe track without rotation to verify no restrictions.
dTimEnd: 2007-08-11T04:00:00+02:00
dTimStart: 2007-08-11T00:00:00+02:00
md: 2505.9
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: Cleaned out rathole from 2505.9 m to 2520 m with 1.35 sg WBM from previous section, 3340 lpm, 194-202 bar, 70 rpm, 25-29 kNm, 0.5-1 MT WOB, ECD 1.39. Cleaned rathole stepwise in 2-3 m steps. No bridge/ledge encountered when drilling out the section from 2512 to 2515 m where the casing couldn't pass.
dTimEnd: 2007-08-11T06:00:00+02:00
dTimStart: 2007-08-11T04:00:00+02:00
md: 2520
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: Cleaned out rathole from 2520 m to 2573 m MD with 1.35 sg WBM from previous section, 3340 lpm, 200 bar, 70 rpm, 26-28 kNm, 0.5-1 MT WOB, ECD 1.39, ROP 20 m/hr. Up weight 195 MT/ down weight 160 MT.
dTimEnd: 2007-08-11T10:30:00+02:00
dTimStart: 2007-08-11T06:00:00+02:00
md: 2573
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: Drilled new formation from 2572.5 m to 2576 m MD, 3600 lpm, 225 bar, 100 rpm, 29-33 kNm, 6 MT WOB, ECD 1.39, ROP 6 m/hr.
dTimEnd: 2007-08-11T11:00:00+02:00
dTimStart: 2007-08-11T10:30:00+02:00
md: 2576
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: Circulated 1 1/2 btms up until shakers were clean. Mud weight stable at 1.38 sg.
dTimEnd: 2007-08-11T13:00:00+02:00
dTimStart: 2007-08-11T11:00:00+02:00
md: 2576
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: RB 2 stds and one single to pull into 14" shoe. Held tool box talk prior to FIT. Verified correct line up and performed line test, 50 bar/5 min. Performed FIT to 1.48 sg EMW. Pumped up a MWD survey to confirm FIT to 1.486 sg EMW. Meanwhile built stds of 5 1/2" DP.
dTimEnd: 2007-08-11T15:00:00+02:00
dTimStart: 2007-08-11T13:00:00+02:00
md: 2576
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: RIH to bottom and observed no obstruction while RIH. Meanwhile held tool box meeting prior to displacement and confirmed line up. Displaced well to 1.35 sg OBM, 3600 lpm, 260 bar, 60 rpm, 22 kNm according to Baroids displacement plan. Filled sand traps and surface equipment with OBM and started to condition mud, 3340 lpm, 225 bar, 60 rpm. Up weight 180 MT/ down weight 145 MT. Meanwhile down linked MWD tools.
dTimEnd: 2007-08-11T19:15:00+02:00
dTimStart: 2007-08-11T15:00:00+02:00
md: 2576
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Trouble shot MWD transmission failure. Worked mud pumps at different rates and different configurations while rotated and resiprocated pipe.  Bleed down and increased pressure on pulsation dampners, 300 psi/1100 psi. Closed one stand pipe. Managed to get good signal.
dTimEnd: 2007-08-12T00:00:00+02:00
dTimStart: 2007-08-11T19:15:00+02:00
md: 2576
phase: fixed
proprietaryCode: interruption -- repair
state: ok
stateDetailActivity: equipment failure
Lithology and shows:
dTim: 2007-08-12T00:00:00+02:00
lithology: Sandstone and claystone
mdBottom: 2640
mdTop: 2580
tvdBottom: 2544
tvdTop: 2488