Daily Drilling Report
Well: NO 15/9-F-15
Report period: 2008-11-24T00:00:00+01:00 to 2008-11-25T00:00:00+01:00
Wellbore info:
dTimSpud: 2008-10-24T00:00:00+02:00
dateDrillComplete: 2008-12-11
operator: StatoilHydro
rigAlias: name: MÆRSK INSPIRER
name: 369304
Status:
dTim: 2008-11-25T00:00:00+01:00
dTimDiaHoleStart: 2008-11-13T06:00:00+01:00
diaHole: 8.5
distDrill: -999.99
elevKelly: 54.9
fixedRig: false
forecast24Hr: Continue to POOH to 2649m. Establish loss free pump rate at 1700 lpm. RIH and start drilling 8½" hole.
hpht: 0
md: 3670
mdCsgLast: 2534
mdDiaHoleStart: 2536
mdPlanned: -999.99
mdStrengthForm: 1381
presTestType: formation integrity test
reportNo: 51
ropCurrent: -999.99
strengthForm: 1.5
sum24Hr: Conditioned mud weight to 1.35 SG. Attempted to stage up pump rate. average losses 3½ m³/hour @ 1300 lpm.
Conditioned mud weight to 1.32 SG. Flow checked. POOH to 2922m and spotted 10.2 m³ LCM pill. Started to POOH from 2922m to 2655m. 

tightWell: 0
tvd: 2910
tvdCsgLast: 2348.8
tvdStrengthForm: 1349
waterDepth: 91
wellheadElevation: 139.4
Drilling fluid:
Pore pressure:
dTim: 2008-11-25T00:00:00+01:00
equivalentMudWeight: 1.15
md: 3670
readingKind: estimated
Survey stations:
Activities:
comments: Continued to establish pump rate - 1500 l/m and 80 rpm with losses, 3-4 m³/h.

dTimEnd: 2008-11-24T00:30:00+01:00
dTimStart: 2008-11-24T00:00:00+01:00
md: 3632
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: RIH while logging from 3626 m to 3660m at 20 m/hour, 80 rpm, 1500 l/m, max ECD 1.46 sg EMW. Losses increased to 8m³/hour and SPP picked up. Mud weight in return uneven, max 1.38 SG.

dTimEnd: 2008-11-24T02:15:00+01:00
dTimStart: 2008-11-24T00:30:00+01:00
md: 3660
phase: fixed
proprietaryCode: drilling -- survey
state: ok
stateDetailActivity: success
comments: Conditioned the mud weight to 1.35 SG with 800-1000 l/m, 52-62 bars SPP, 10 rpm.
dTimEnd: 2008-11-24T06:00:00+01:00
dTimStart: 2008-11-24T02:15:00+01:00
md: 3660
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Conditioned the mud weight to 1.35 SG with 800 l/m, 52 bars SPP, 10 rpm.

dTimEnd: 2008-11-24T07:00:00+01:00
dTimStart: 2008-11-24T06:00:00+01:00
md: 3660
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Continued to condition mud, attempted to stage up pump rate. Monitored for losses, average losses 3½ m³/hour @ 1300 lpm.

dTimEnd: 2008-11-24T09:00:00+01:00
dTimStart: 2008-11-24T07:00:00+01:00
md: 3660
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Lined up pit #13 & pump 8½ m³ LCM pill. Staged up flow rate to 1300 lpm & monitored loss rate. Circulated LCM pill out of hole to skips. Average losses 3½ m³.  Meanwhile prepared equipment for pulling wet.

dTimEnd: 2008-11-24T11:30:00+01:00
dTimStart: 2008-11-24T09:00:00+01:00
md: 3660
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Flow checked well, observed rapid increase to Trip Tank, shut in well on upper rams, monitored pressure built up SIDP 0bar (float installed), SICP 6,7 bars.
11:50 bled off approx 1m³ from well and closed in, SICP 5,0 bar - no pressure built up.
12:18 bled off additional 2.75 m³ from well and closed in, SICP 3,2 bars - no pressure built up.
As no pressure built up to original SICP was observed, conclusion is supercharged formation. Continued to bleed off from well, observed decreasing trend in flow back and decided to open BOP. Total volume bled back from well: 4½ m³.

dTimEnd: 2008-11-24T14:00:00+01:00
dTimStart: 2008-11-24T11:30:00+01:00
md: 3660
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Flushed across BOP prior to open up pipe ram. Broke circulation, staged up to 20 RPM, staged up mud pumps to 800lpm. Decided to cut mud weight. Bled into active to reduce mud weight to 1.32 SG. Circulated to even mud weight. Total losses approx. 5½ m³.
dTimEnd: 2008-11-24T19:00:00+01:00
dTimStart: 2008-11-24T14:00:00+01:00
md: 3660
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Continued to circulate and condition mud to even mud weight 1.32 SG. 

dTimEnd: 2008-11-24T20:45:00+01:00
dTimStart: 2008-11-24T19:00:00+01:00
md: 3640
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Stopped pumps and monitored return flow. Active volume increased 2.45 m³ when pumps turned off.

dTimEnd: 2008-11-24T21:00:00+01:00
dTimStart: 2008-11-24T20:45:00+01:00
md: 3640
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Monitored returns on Trip Tank rotating the string 5 rpm. Flow reducing over time. Table below.
Time                          Actual gain                    Gain
21.00-21.15              0.51 m³                      2.04 m³/h
21.15-21.30              0.51 m³                      2.04 m³/h
21.30-21.45              0.20 m³                      0.80 m³/h
21.45-22.00              0.13 m³                      0.52 m³/h
22.00-22.15              0.09 m³                      0.36 m³/h
22.15-22.30              0.08 m³                      0.32 m³/h
22.30-22.45              0.06 m³                      0.24 m³/h
22.45-23.00              0.04 m³                      0.16 m³/h
23.00-23.15              0.03 m³                      0.12 m³/h
23.15-23.30              0.03 m³                      0.12 m³/h

dTimEnd: 2008-11-24T23:30:00+01:00
dTimStart: 2008-11-24T21:00:00+01:00
md: 3640
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: Started to POOH wet from 3640m to 3540m.

dTimEnd: 2008-11-25T00:00:00+01:00
dTimStart: 2008-11-24T23:30:00+01:00
md: 3540
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
Lithology and shows: