Daily Drilling Report
Well: NO 15/9-19 B
Report period: 1998-01-24T00:00:00+01:00 to 1998-01-25T00:00:00+01:00
Wellbore info:
dTimSpud: 1997-12-05T00:00:00+01:00
daysBehind: 74.9
operator: Statoil
rigAlias: name: BYFORD DOLPHIN
name: 341331
Status:
dTim: 1998-01-25T00:00:00+01:00
dTimDiaHoleStart: 1998-01-18T18:00:00+01:00
distDrill: -999.99
elevKelly: 25
fixedRig: false
forecast24Hr: CONTINUE WITH P&A OPERATIONS: PULL SEAL ASSEMBLY FROM WELLHEAD.
PULL 10 3/4" X 9 5/8" CASING STRING.
hpht: 0
md: 4250
mdCsgLast: 4643
mdDiaHoleStart: 110
mdKickoff: 2911
mdPlanned: -999.99
mdPlugTop: 3146
reportNo: 51
ropCurrent: -999.99
sum24Hr: FINISHED POOH WITH 5 7/8" BIT. MU & RIH WITH 9 5/8" CASING CUTTING
ASSEMBLY. CUT CASING Ø 1485 M. SWEPT GAS FROM STACK;CIRCULATED BOTTOMS
UP. POOH WITH CUTTING ASSEMBLY.
tightWell: 0
tvd: 3360
waterDepth: 85
wellheadElevation: 106.5
Drilling fluid:
dTim: 1998-01-24T06:00:00+01:00
density: 1.4
locationSample: Active pit
md: 4250
mudClass: other
presBopRating: 999
pv: 22
type: ULTIDRILL
visFunnel: 54
yp: 11
dTim: 1998-01-24T00:00:00+01:00
density: 1.4
locationSample: Active pit
md: 4250
mudClass: other
presBopRating: 999
pv: 22
type: ULTIDRILL
visFunnel: 54
yp: 11
Pore pressure:
Survey stations:
Activities:
comments: COMPLETED BUILDING 1,40 SG WATER BASE MUD FOR TRIP OUT OF HOLE.
dTimEnd: 1998-01-24T00:30:00+01:00
dTimStart: 1998-01-24T00:00:00+01:00
md: 3146
phase: fixed
proprietaryCode: plug abandon -- other
state: ok
stateDetailActivity: success
comments: CIRCULATED 1 DP VOLUME TO SHEAR THICK MUD WHILE BUILDING SLUG. BUILD SLUG FOR TRIP OUT OF HOLE.
dTimEnd: 1998-01-24T01:30:00+01:00
dTimStart: 1998-01-24T00:30:00+01:00
md: 3146
phase: fixed
proprietaryCode: plug abandon -- circulating conditioning
state: ok
stateDetailActivity: success
comments: POOH - LD 5" DRILLPIPE ON TRIP OUT OF HOLE. AT REPORT TIME - 52 JTS. LD - BIT DEPTH = 2639 M. NOTE: LOSING APPROXIMATELY 1,5 M3/HR. VIA RISER LEAK.
dTimEnd: 1998-01-24T06:00:00+01:00
dTimStart: 1998-01-24T01:30:00+01:00
md: 2639
phase: fixed
proprietaryCode: plug abandon -- trip
state: ok
stateDetailActivity: success
comments: CONTINUED TO POOH FROM 2639-178 M/TOP OF BHA. LD TOTAL OF 84 JTS. 5" DRILLPIPE ON TRIP OUT OF HOLE. NOTE:Ø 0700 HRS. DISPLACED RISER TO SEAWATER VIA CHOKE LINE BECAUSE RISER LEAK STARTED AGAIN. LOST 3,3 M3 WATER BASE MUD VIA RISER BEFORE DISPLACING MUD FROM RISER.
dTimEnd: 1998-01-24T11:00:00+01:00
dTimStart: 1998-01-24T06:00:00+01:00
md: 178
phase: fixed
proprietaryCode: plug abandon -- trip
state: ok
stateDetailActivity: success
comments: LD 9 JTS. 3 1/2" HWDP, 1 - JAR, + 9-4 3/4" DC / BHA / WHILE POOH.
dTimEnd: 1998-01-24T12:30:00+01:00
dTimStart: 1998-01-24T11:00:00+01:00
md: 0
phase: fixed
proprietaryCode: plug abandon -- trip
state: ok
stateDetailActivity: success
comments: RIH & RETRIEVED 9 5/8" WEAR BUSHING FROM WELLHEAD.
dTimEnd: 1998-01-24T14:00:00+01:00
dTimStart: 1998-01-24T12:30:00+01:00
md: 107
phase: fixed
proprietaryCode: plug abandon -- cut
state: ok
stateDetailActivity: success
comments: MU 9 5/8" CASING CUTTING ASSEMBLY & RIH; LANDED MARINE SWIVEL INTO WELLHEAD - SPACED-OUT CUTTERS Ø 1485 M. DISPLACED RISER BACK TO 1,40 SG WATER BASE MUD Ø 2030 HRS. - VIA CHOKE LINE.
dTimEnd: 1998-01-24T21:00:00+01:00
dTimStart: 1998-01-24T14:00:00+01:00
md: 1485
phase: fixed
proprietaryCode: plug abandon -- cut
state: ok
stateDetailActivity: success
comments: CUT 9 5/8" CASING Ø 1485 M - WITH UPPER ANNULAR CLOSED. FREE ROTATING TORQUE BEFORE = 7860 NM. WHILE CUTTING TORQUE = 10800 NM PUMP PRESSURE = 76 BAR Ø 540 LPM. AFTER CUT TORQUE RETURNED TO 7860 NM PUMP PRESSURE = 38 BAR Ø 540 LPM. NOTE: ROTARY SPEED = 140 RPM WHILE CUTTING.
dTimEnd: 1998-01-24T21:30:00+01:00
dTimStart: 1998-01-24T21:00:00+01:00
md: 1485
phase: fixed
proprietaryCode: plug abandon -- cut
state: ok
stateDetailActivity: success
comments: SWEPT GAS FROM BOPS VIA SEAWATER & MUD. CLOSED LOWER ANNULAR & OPENED UPPER ANNULAR & ALLOWED TRAPPED GAS TO MIGRATE UP RISER. THEN OPENED LOWER ANNULAR & ALLOWED GAS TO AGAIN MIGRATE UP RISER. NOTE: VISUALLY OBSERVED GAS "BREAKING-OUT". ALSO OBSERVED MUD LEVEL DROPPING IN RISER ANNULUS; RISER LEAKING AGAIN.
dTimEnd: 1998-01-24T22:30:00+01:00
dTimStart: 1998-01-24T21:30:00+01:00
md: 1485
phase: fixed
proprietaryCode: plug abandon -- cut
state: ok
stateDetailActivity: success
comments: CIRCULATED BOTTOMS-UP FROM 1485 M. UNABLE TO CIRCULATE FASTER THAN 800 LPM BECAUSE LOSING SUCTION DUE TO HIGH VISCOSITY OF WATER BASE MUD.
dTimEnd: 1998-01-25T00:00:00+01:00
dTimStart: 1998-01-24T22:30:00+01:00
md: 1485
phase: fixed
proprietaryCode: plug abandon -- cut
state: ok
stateDetailActivity: success
Lithology and shows: