Daily Drilling Report
Well: NO 15/9-19 B
Report period: 1997-11-27T00:00:00+01:00 to 1997-11-28T00:00:00+01:00
Wellbore info:
dTimSpud: 1997-11-10T00:00:00+01:00
daysBehind: 18.1
operator: Statoil
rigAlias: name: BYFORD DOLPHIN
name: 341331
Status:
dTim: 1997-11-28T00:00:00+01:00
dTimDiaHoleStart: 1997-11-09T22:00:00+01:00
diaHole: 8.5
distDrill: 147
elevKelly: 25
fixedRig: false
forecast24Hr: BACKOFF DRILL STRING AND POOH. RIH WITH CEMENT STINGER AND SET SIDE
TRACK PLUG. POOH. P/U STEERABLE DRILLING ASSEMBLY AND RIH.
hpht: 0
md: 3272
mdCsgLast: 4643
mdDiaHoleStart: 2231
mdKickoff: 2911
mdPlanned: -999.99
presTestType: leak off test
reportNo: 19
ropCurrent: -999.99
strengthForm: 1.73
sum24Hr: DRILLED 8 1/2" HOLE FROM 3212M TO 3272M. BEGAN LOSING MUD RETURNS.
PIPE STARTED STICKING. WORKED AND JARRED PIPE TO 3241 WHERE NO FURTHER
PROGRESS COULD BE MADE. RIGGED UP TO RUN STRINGSHOT TO BACKOFF PIPE.
tightWell: 0
tvd: 2511
waterDepth: 85
wellheadElevation: 106.5
Drilling fluid:
dTim: 1997-11-27T06:43:00+01:00
density: 1.49
md: 3219
mudClass: other
presBopRating: 999
pv: 34
type: ULTIDRILL
visFunnel: 65
yp: 11.5
dTim: 1997-11-27T21:00:00+01:00
density: 1.49
md: 3125
mudClass: other
presBopRating: 999
pv: 35
type: ULTIDRILL
visFunnel: 78
yp: 9.5
Pore pressure:
dTim: 1997-11-28T00:00:00+01:00
equivalentMudWeight: 1.03
md: 3272
readingKind: estimated
Survey stations:
azi: 158.8
dTim: 1997-11-28T00:00:00+01:00
incl: 32.9
md: 3215
tvd: 2463.3
azi: 158.8
dTim: 1997-11-28T00:00:00+01:00
incl: 33.1
md: 3244
tvd: 2487.6
Activities:
comments: DRILLED 8 1/2" HOLE FROM 3125M TO 3212M. INCREASED CONTROLLED ROP TO 30 MPH AND STAGED CIRCULATION RATE UP TO 2000 LPM. ECD 1.61-1.62 SG.
dTimEnd: 1997-11-27T06:00:00+01:00
dTimStart: 1997-11-27T00:00:00+01:00
md: 3212
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: DRILLED 8 1/2" HOLE FROM 3212M TO 3268M AT CONTROLLED ROP OF 20-30 MPH, CIRCULATING RATE OF 2000 LPM. NO ABNORMAL TORQUE OR DRAG INDICATIONS. ECD TENDING TO INCREASE.
dTimEnd: 1997-11-27T09:30:00+01:00
dTimStart: 1997-11-27T06:00:00+01:00
md: 3268
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: CIRCULATED BOTTOMS UP AND UNTIL SHAKERS CLEANED UP AT 2000 LPM. NO LOSSES. ECD DECREASED FROM 1.62 SG TO 1.60 SG.
dTimEnd: 1997-11-27T10:30:00+01:00
dTimStart: 1997-11-27T09:30:00+01:00
md: 3268
phase: fixed
proprietaryCode: drilling -- circulating conditioning
state: ok
stateDetailActivity: success
comments: DRILLED 8 1/2" HOLE FROM 3268M TO 3272M.
dTimEnd: 1997-11-27T11:00:00+01:00
dTimStart: 1997-11-27T10:30:00+01:00
md: 3272
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: AT 3272 METERS STARTED LOSING MUD AT 20-30 M3/HR. PICKED UP FROM BOTTOM - NO UNUSUAL DRAG. REDUCED PUMP RATE TO 800 LPM. STILL LOSING MUD. QUIT CIRCULATING AND MONITORED ANNULUS ON TRIP TANK. HOLE STAYING FULL. STAGED PUMPS TO 600 LPM WHERE MUD LOSSES RESUMED. RACKED BACK 1 STAND. REDUCED RATE TO 300 LPM WITH FULL RETURNS. MIXED LCM PILL.
dTimEnd: 1997-11-27T13:30:00+01:00
dTimStart: 1997-11-27T11:00:00+01:00
md: 3272
phase: fixed
proprietaryCode: interruption -- lost circulation
state: fail
stateDetailActivity: success
comments: WORKED STRING WITH REDUCED PUMP RATE WHILE MIXING LCM PILL. BEGAN EXPERIENCING ERRATIC TORQUE AND LOSSES OF 12 M3/HR. PICKED UP TO 3248M WHERE COMPLETE RETURNS WERE LOST AND PIPE STUCK - NO RETURNS, NO NO ROTATION, NO RECIPROCATION POSSIBLE.
dTimEnd: 1997-11-27T14:00:00+01:00
dTimStart: 1997-11-27T13:30:00+01:00
md: 3248
phase: fixed
proprietaryCode: interruption -- lost circulation
state: fail
stateDetailActivity: success
comments: ATTEMPTED TO RIH - NO GO. JARRED DOWN WITH NO PROGRESS. JARRED AND WORKED DRILL STRING UP FROM 3248M TO 3241M. INITIALLY ATTAINED ROTATION AND A WINDOW OF A FEW METERS PIPE RECIPROCATION BUT LOST IT AGAIN. CONTINUED JARRING AND WORKING STRING. HOLE STANDING FULL - NO GAINS, NO LOSSES. ATTEMPTED CIRCULATION WITH NO SUCCESS.
dTimEnd: 1997-11-28T00:00:00+01:00
dTimStart: 1997-11-27T14:00:00+01:00
md: 3241
phase: fixed
proprietaryCode: interruption -- fish
state: fail
stateDetailActivity: stuck equipment
Lithology and shows:
dTim: 1997-11-28T00:00:00+01:00
lithology: CLAYSTONE WITH MINOR LIMESTONE STRINGERS
mdBottom: -999.99
mdTop: 3183
dTim: 1997-11-28T00:00:00+01:00
lithology: SANDSTONE WITH CLAYSTONE AND LIMESTONE BEDS
mdBottom: -999.99
mdTop: 3208