Daily Drilling Report
Well: NO 15/9-19 A
Report period: 1997-08-01T00:00:00+02:00 to 1997-08-02T00:00:00+02:00
Wellbore info:
dTimSpud: 1997-07-25T00:00:00+02:00
dateDrillComplete: 1997-08-30
daysBehind: 8
operator: Statoil
rigAlias: name: BYFORD DOLPHIN
name: 341331
Status:
dTim: 1997-08-02T00:00:00+02:00
dTimDiaHoleStart: 1997-07-25T00:30:00+02:00
diaHole: 8.5
distDrill: 15
elevKelly: 25
fixedRig: false
forecast24Hr: MAKE WIPER/CHECK TRIP TO TD WITH SLICK BHA TO DETERMINE HOLE'S
CONDITION. NOTE:WILL FINISH TESTING SURFACE EQUIPMENT BEFORE ENTERING
OPEN HOLE.
hpht: 0
md: 2783
mdCsgLast: 4643
mdDiaHoleStart: 2202
mdKickoff: 2178
mdPlanned: -999.99
mdStrengthForm: 2178
presTestType: leak off test
reportNo: 9
ropCurrent: -999.99
strengthForm: 1.73
sum24Hr: DRILLED 8 1/2" HOLE FROM 2771-2783 M; NOT MAKING PROGRESS. POOH FOR
BIT/BHA CHANGE - GOT STUCK WHILE PREPARING TO PULL THROUGH WINDOW.
FIGHT LOST RETURNS/TIGHT HOLE. SUCCESSFUL IN PULLING THROUGH WINDOW.
FINISHED POOH. TEST BOPS.
tightWell: 0
tvd: 2089
tvdStrengthForm: 1627
waterDepth: 84
wellheadElevation: 106.5
Drilling fluid:
dTim: 1997-08-01T13:45:00+02:00
density: 1.5
locationSample: Flowline
md: 2783
mudClass: other
presBopRating: 999
pv: 38
type: ULTIDRILL
visFunnel: 70
yp: 13
dTim: 1997-08-01T22:00:00+02:00
density: 1.5
locationSample: Flowline
md: 2783
mudClass: other
presBopRating: 999
pv: 39
type: ULTIDRILL
visFunnel: 72
yp: 13.5
Pore pressure:
dTim: 1997-08-02T00:00:00+02:00
equivalentMudWeight: 1.03
md: 2783
readingKind: estimated
Survey stations:
Activities:
comments: CONTINUED CIRCULATING WHILE RU TO RUN GYRO.
dTimEnd: 1997-08-01T00:30:00+02:00
dTimStart: 1997-08-01T00:00:00+02:00
md: 2768
phase: fixed
proprietaryCode: drilling -- survey
state: ok
stateDetailActivity: success
comments: MU SIDE-ENTRY SUB INTO DRILLSTRING & RIH WITH GYRO ON ATLAS E/LINE. BIT 1 JOINT OFF BOTTOM DURING SURVEY. RAN GYRO FROM 1880 TO 2710 M. POOH WITH GYRO & RD SIDE-ENTRY SUB.
dTimEnd: 1997-08-01T05:30:00+02:00
dTimStart: 1997-08-01T00:30:00+02:00
md: 2768
phase: fixed
proprietaryCode: drilling -- survey
state: ok
stateDetailActivity: success
comments: DRILLED FROM 2768 - 2771 M / SLIDING.
dTimEnd: 1997-08-01T06:00:00+02:00
dTimStart: 1997-08-01T05:30:00+02:00
md: 2771
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: DRILLED FROM 2771-2783 M. DECREASE IN ROP - TOOK APPROX. 2,5 HRS. TO DRILL LAST METER.
dTimEnd: 1997-08-01T13:30:00+02:00
dTimStart: 1997-08-01T06:00:00+02:00
md: 2783
phase: fixed
proprietaryCode: drilling -- drill
state: ok
stateDetailActivity: success
comments: FLOW CHECKED & PUMPED SLUG. POOH TO 2190 M WITH NO PROBLEMS.
dTimEnd: 1997-08-01T15:00:00+02:00
dTimStart: 1997-08-01T13:30:00+02:00
md: 2190
phase: fixed
proprietaryCode: drilling -- trip
state: ok
stateDetailActivity: success
comments: CIRCULATED W/2500LPM & ORIENTED TOOLFACE PRIOR TO PULLING THROUGH CSG. WINDOW. HOLE PACKED-OFF & STRING TORQUED-UP & LOST CIRC-STRING STUCK 2 MIN. WORKED STRING FREE BY GOING DOWNWARDS;MAX WEIGHT SLACKED-OFF=40 MT. ESTABLISHED CIRCULATION AT 600 LPM.
dTimEnd: 1997-08-01T16:00:00+02:00
dTimStart: 1997-08-01T15:00:00+02:00
md: 2190
phase: fixed
proprietaryCode: drilling -- drill
state: fail
stateDetailActivity: circulation loss
comments: WORKED STRING DOWN TO 2199 M BIT DEPTH - 16 M BELOW WINDOW'S BOTTOM. HOLE PACKED-OFF;LOST CIRCULATION SEVERAL TIMES. ATTEMPTED TO ESTABLISH CIRCULATION - IN STEPS - AT DIFFERENT FLOW RATES WHILE ROTATING AT 80- 120 RPM / PROBLEMS =PACKING-OFF,LOST CIRCULATION, TORQUING-UP OF DRILLSTRING. TORQUE WOULD INCREASE & THEN RETURNS WOULD BE LOST.
dTimEnd: 1997-08-01T19:30:00+02:00
dTimStart: 1997-08-01T16:00:00+02:00
md: 2199
phase: fixed
proprietaryCode: drilling -- drill
state: fail
stateDetailActivity: circulation loss
comments: FINALLY ESTABLISHED CIRCULATION WITH FULL RETURNS AT 1860 LPM/164 BAR. STARTED MOVING UPWARDS TOWARD WINDOW-STOPPED AT 2188 M. ORIENTED TOOL- FACE & THEN FLOW CHECKED. STARTED PULLING UP WHILE PUMPING AT 450 LPM- LOSING CIRCULATION AGAIN. STOPPED PUMPING & CONTINUED POOH-PULLED THROUGH WINDOW WITH NO ROTATING/PUMPING WITH MAXIMUM DRAG = 5 MT.
dTimEnd: 1997-08-01T20:30:00+02:00
dTimStart: 1997-08-01T19:30:00+02:00
md: 2167
phase: fixed
proprietaryCode: drilling -- drill
state: fail
stateDetailActivity: circulation loss
comments: AT 2167 M - FLOW CHECKED FOR 15 MINUTES; HOLE STATIC. FLUSHED CHOKE & KILL LINES & BOOSTED RISER CLEAN. CONTINUED TO POOH WITH BHA.
dTimEnd: 1997-08-02T00:00:00+02:00
dTimStart: 1997-08-01T20:30:00+02:00
md: 540
phase: fixed
proprietaryCode: drilling -- trip
state: ok
stateDetailActivity: success
Lithology and shows:
dTim: 1997-08-02T00:00:00+02:00
lithology: CLAYSTONE WITH INCREASING AMOUNT OF ANHYDRITE/GYPSUM TOWARDS 2783M
mdBottom: -999.99
mdTop: 2768