Daily Drilling Report
Well: NO 15/9-F-12
Report period: 2007-07-25T00:00:00+02:00 to 2007-07-26T00:00:00+02:00
Wellbore info:
dTimSpud: 2007-03-15T00:00:00+01:00
dateDrillComplete: 2007-08-26
daysBehind: 12.8
operator: Statoil
rigAlias: name: MÆRSK INSPIRER
name: 369304
Status:
dTim: 2007-07-26T00:00:00+02:00
dTimDiaHoleStart: 2007-07-21T13:30:00+02:00
diaHole: 17.5
distDrill: 323
elevKelly: 54.9
fixedRig: false
forecast24Hr: Drill 17 1/2" section to section TD at approx. 2585 m MD. Circulate well clean.
hpht: 0
md: 2403
mdCsgLast: 1357
mdDiaHoleStart: 1372
mdPlanned: -999.99
mdStrengthForm: 1353
presTestType: leak off test
reportNo: 43
ropCurrent: -999.99
strengthForm: 1.7
sum24Hr: Drilled 17 1/2" hole section from 2150 m to 2438 m MD.
tightWell: 0
tvd: 2322
tvdCsgLast: 1333
tvdStrengthForm: 1353
waterDepth: 91
wellheadElevation: 138.7
Drilling fluid:
dTim: 2007-07-25T23:50:00+02:00
density: 1.35
locationSample: Active pit
md: 2403
mudClass: water based
presBopRating: 690
pv: 34
type: HPWBM
visFunnel: -999.99
yp: 12
dTim: 2007-07-25T16:00:00+02:00
density: 1.35
locationSample: Active pit
md: 2325
mudClass: water based
presBopRating: 690
pv: 30
type: HPWBM
visFunnel: -999.99
yp: 12.5
dTim: 2007-07-25T10:00:00+02:00
density: 1.35
locationSample: Active pit
md: 2200
mudClass: water based
presBopRating: 690
pv: 33
type: HPWBM
visFunnel: -999.99
yp: 11
dTim: 2007-07-25T04:00:00+02:00
density: 1.35
locationSample: Active pit
md: 1875
mudClass: water based
presBopRating: 690
pv: 31
type: HPWBM
visFunnel: -999.99
yp: 9.5
Pore pressure:
dTim: 2007-07-26T00:00:00+02:00
equivalentMudWeight: 1.05
md: 2438.8
readingKind: estimated
Survey stations:
azi: 176.3
dTim: 2007-07-26T00:00:00+02:00
incl: 10.2
md: 2292.6
tvd: 2213
azi: 160.73
dTim: 2007-07-26T00:00:00+02:00
incl: 11.11
md: 2333.7
tvd: 2253.4
azi: 151.46
dTim: 2007-07-26T00:00:00+02:00
incl: 12.74
md: 2372.2
tvd: 2291.1
azi: 243.38
dTim: 2007-07-26T00:00:00+02:00
incl: 11.5
md: 2132.1
tvd: 2054.8
azi: 233.9
dTim: 2007-07-26T00:00:00+02:00
incl: 9.85
md: 2172.8
tvd: 2094.8
azi: 215.05
dTim: 2007-07-26T00:00:00+02:00
incl: 9.25
md: 2213.4
tvd: 2134.9
azi: 194.63
dTim: 2007-07-26T00:00:00+02:00
incl: 9.12
md: 2253.1
tvd: 2174.1
Activities:
comments: Drilled 17 1/2" hole section from 2080 m to 2146 m MD. Drilling parameters : Flow 4500 lpm / SPP 258 bar / 180 rpm / 3-4 MT WOB /  23 kNm / ECD 1,37-1,38. Downlinked Powerdrive as required. Performed pit drill at 02:00. Bled 2-3 m3 mud into active. Good response from driller and Geoservice. Experienced problems with mud pumps, standpipe pressure eratic and lower than before.

dTimEnd: 2007-07-25T03:30:00+02:00
dTimStart: 2007-07-25T00:00:00+02:00
md: 2146
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: Troubleshot problems with mudpumps, isolated one pump at the time. Problem with mud pump #2, took pump out of service. Attempted to drill ahead using mud pump #1 and #3. Got problem with mud pump #1.
dTimEnd: 2007-07-25T04:15:00+02:00
dTimStart: 2007-07-25T03:30:00+02:00
md: 2150
phase: fixed
proprietaryCode: interruption -- other
state: ok
stateDetailActivity: equipment failure
comments: Stopped drilling. Worked on mud pump #2, changed ejection valve and valve seat. Meanwhile reciprocated string pumping 1500 lpm with mud pump #3. Rotated string 20 rpm.
dTimEnd: 2007-07-25T06:00:00+02:00
dTimStart: 2007-07-25T04:15:00+02:00
md: 2150
phase: fixed
proprietaryCode: interruption -- other
state: ok
stateDetailActivity: equipment failure
comments: Continued drilling from 2150  to 2320 m MD. Drilling parameters : Flow 4500 lpm / SPP 265 bar / 180 rpm / 10-12 MT WOB / Torque 20-25 kNm / ECD 1,37-1,38. Performed survey and reamed stand on connection. Downlinked Power as required.

dTimEnd: 2007-07-25T16:30:00+02:00
dTimStart: 2007-07-25T06:00:00+02:00
md: 2320
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: Drilled 17 1/2" hole section from 2320 to 2403 m MD. ROP dropped to 5-10 m/hrs, increased WOB. Drilling parameters : Flow 4500 lpm / SPP 265-272 bar / 180 rpm / 10-18 MT WOB / Torque 16-23 kNm / ECD 1,37-1,38. Top of Balder encounterd at 2345 m MD. Stick slip tendencies at 2380 m MD, reduced WOB as required.
dTimEnd: 2007-07-26T00:00:00+02:00
dTimStart: 2007-07-25T16:30:00+02:00
md: 2403
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
Lithology and shows:
dTim: 2007-07-26T00:00:00+02:00
lithology: Homogenous claystone with variable reduction colours with rare, intermittent sandstone/siltstone and dolomite horizons.
mdBottom: 2300
mdTop: 2150
tvdBottom: 2220.3
tvdTop: 2072.4
dTim: 2007-07-26T00:00:00+02:00
lithology: Tuffaceous claystone with variable reduction colours with rare, intermittent tuff horizons.
mdBottom: 2390
mdTop: 2310
tvdBottom: 2308.5
tvdTop: 2230.2
dTim: 2007-07-26T00:00:00+02:00
lithology: Homogenous claystone with very rare tuffaceous horizons.
mdBottom: 2420
mdTop: 2400
tvdBottom: 2337.7
tvdTop: 2318.2