Daily Drilling Report
Well: NO 15/9-19 B
Report period: 1998-01-03T00:00:00+01:00 to 1998-01-04T00:00:00+01:00
Wellbore info:
dTimSpud: 1997-12-05T00:00:00+01:00
daysBehind: 53.9
operator: Statoil
rigAlias: name: BYFORD DOLPHIN
name: 341331
Status:
dTim: 1998-01-04T00:00:00+01:00
dTimDiaHoleStart: 1997-12-18T21:00:00+01:00
diaHole: 6
distDrill: -999.99
elevKelly: 25
fixedRig: false
forecast24Hr: M/U CORE BARREL AND RIH. CUT CORE FROM 4037M.
hpht: 0
md: 4037
mdCsgLast: 4643
mdDiaHoleStart: 2911
mdKickoff: 2911
mdPlanned: -999.99
reportNo: 30
ropCurrent: -999.99
sum24Hr: CONTINUED REAMING FROM 3960M TO TD AT 4031M. DRILLED 6" HOLE FROM
4031M TO 4037M. CBU FOR SAMPLES. POOH TO P/U CORE BARREL.
tightWell: 0
tvd: 3175
waterDepth: 85
wellheadElevation: 106.5
Drilling fluid:
dTim: 1998-01-03T06:00:00+01:00
density: 1.4
locationSample: Active pit
md: 4031
mudClass: other
presBopRating: 999
pv: 27
type: ULTIDRILL
visFunnel: 54
yp: 11
dTim: 1998-01-03T00:00:00+01:00
density: 1.4
locationSample: Active pit
md: 4031
mudClass: other
presBopRating: 999
pv: 27
type: ULTIDRILL
visFunnel: 54
yp: 11
Pore pressure:
dTim: 1998-01-04T00:00:00+01:00
equivalentMudWeight: 1.3
md: 3775
readingKind: estimated
dTim: 1998-01-04T00:00:00+01:00
equivalentMudWeight: 1.13
md: 4037
readingKind: estimated
Survey stations:
Activities:
comments: CONTINUED REAMING HOLE FROM 3860M TO 3960M. HOLE IS TIGHT IN SHORT, DISCREET INTERVALS THAT TEND TO STALL ROTARY. WORST PLACES HAVE BEEN AT 3790M AND 3835M TO 3846M. AFTER REAMING THROUGH EACH PLACE ONCE IT IS CLEAR AND FREE.
dTimEnd: 1998-01-03T06:00:00+01:00
dTimStart: 1998-01-03T00:00:00+01:00
md: 3960
phase: fixed
proprietaryCode: drilling -- ream
state: ok
stateDetailActivity: success
comments: CONTINUED REAMING FROM 3960M TO 4031M. AS BEFORE, HOLE WAS TIGHT IN SHORT DISCREET INTERVALS THAT CLEARED UP AFTER REAMING THROUGH ONCE.
dTimEnd: 1998-01-03T14:30:00+01:00
dTimStart: 1998-01-03T06:00:00+01:00
md: 4031
phase: fixed
proprietaryCode: drilling -- ream
state: ok
stateDetailActivity: success
comments: DRILLED 6" HOLE FROM 4031M TO 4037M. FROM 4036M - 4037M ROTARY WAS STALLING OUT. AT 4037M PUMP PRESSURE DROPPED 4-5 BAR, ROTARY TORQUE SMOOTHED OUT AND NO PROGRESS WAS MADE FOR APPROX. 1 HOUR.
dTimEnd: 1998-01-03T17:00:00+01:00
dTimStart: 1998-01-03T14:30:00+01:00
md: 4037
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: CIRCULATED BOTTOMS UP FOR SAMPLES.
dTimEnd: 1998-01-03T19:00:00+01:00
dTimStart: 1998-01-03T17:00:00+01:00
md: 4037
phase: fixed
proprietaryCode: formation evaluation -- circulation samples
state: ok
stateDetailActivity: success
comments: POOH 10 STANDS - NO UNUSUAL DRAG. PUMPED SLUG AND CONTINUED POOH. 20 TONS OVERPULL AT 3530M OTHERWISE HOLE IN GOOD SHAPE.
dTimEnd: 1998-01-04T00:00:00+01:00
dTimStart: 1998-01-03T19:00:00+01:00
md: 2373
phase: fixed
proprietaryCode: drilling -- trip
state: ok
stateDetailActivity: success
Lithology and shows:
dTim: 1998-01-04T00:00:00+01:00
lithology: CLAYSTONE WITH MINOR SANDSTONE
mdBottom: -999.99
mdTop: 4031