Daily Drilling Report
Well: NO 15/9-19 A
Report period: 1997-08-15T00:00:00+02:00 to 1997-08-16T00:00:00+02:00
Wellbore info:
dTimSpud: 1997-07-25T00:00:00+02:00
dateDrillComplete: 1997-08-30
daysBehind: 22
operator: Statoil
rigAlias: name: BYFORD DOLPHIN
name: 341331
Status:
dTim: 1997-08-16T00:00:00+02:00
dTimDiaHoleStart: 1997-07-25T00:30:00+02:00
diaHole: 8.5
distDrill: 27
elevKelly: 25
fixedRig: false
forecast24Hr: RETRIEVE CORE NO 4. RIH AND CUT CORE NO 5. CIRC OUT GAS AND POOH
WITH COREBARREL.
hpht: 0
md: 3935.5
mdCsgLast: 4643
mdDiaHoleStart: 2202
mdKickoff: 2178
mdPlanned: -999.99
mdStrengthForm: 2178
presTestType: leak off test
reportNo: 23
ropCurrent: -999.99
strengthForm: 1.73
sum24Hr: RETRIEVED CORE NO 3. 99,6 % RECOVERY. CUT CORE NO 4. CIRC DOWN GAS
GAS LEVEL AND POH TO CURRENT DEPTH 1195M.
tightWell: 0
tvd: 3136.4
tvdStrengthForm: 1627
waterDepth: 84
wellheadElevation: 106.5
Drilling fluid:
dTim: 1997-08-15T14:00:00+02:00
density: 1.55
locationSample: Flowline
md: 3908
mudClass: other
presBopRating: 999
pv: 36
type: ULTIDRILL
visFunnel: 75
yp: 12
dTim: 1997-08-15T23:00:00+02:00
density: 1.55
locationSample: Flowline
md: 3936
mudClass: other
presBopRating: 999
pv: 36
type: ULTIDRILL
visFunnel: 75
yp: 14
Pore pressure:
dTim: 1997-08-16T00:00:00+02:00
equivalentMudWeight: 1.22
md: 3600
readingKind: estimated
dTim: 1997-08-16T00:00:00+02:00
equivalentMudWeight: 1.13
md: 3935.5
readingKind: estimated
Survey stations:
Activities:
comments: CONTINUED CIRC BTM'S UP. MAX GAS FROM CORING 12,75 % DECLINED TO 2,8 %
dTimEnd: 1997-08-15T02:00:00+02:00
dTimStart: 1997-08-15T00:00:00+02:00
md: 3820
phase: fixed
proprietaryCode: formation evaluation -- circulating conditioning
state: ok
stateDetailActivity: success
comments: FLOW CHECKED OK. PUMP SLUG AND POOH. FLOW CHECKED INSIDE CSG WINDOW.OK CURRENT DEPTH AT REPORT TIME 1412M.
dTimEnd: 1997-08-15T06:00:00+02:00
dTimStart: 1997-08-15T02:00:00+02:00
md: 1412
phase: fixed
proprietaryCode: formation evaluation -- trip
state: ok
stateDetailActivity: success
comments: CONTINUED POOH WITH CORE NO 3. FLOW CHECKED AT CSG WINDOW AND BEFORE PULLING BHA INTO BOP.
dTimEnd: 1997-08-15T08:30:00+02:00
dTimStart: 1997-08-15T06:00:00+02:00
md: 0
phase: fixed
proprietaryCode: formation evaluation -- trip
state: ok
stateDetailActivity: success
comments: RETRIEVED CORE NO 3. INITIAL TOP OF CORE HAD 80 PPM H2S GAS CONTENT WHICH DISPERSED, CHECKS WHILE RETRIEVING WERE 10 PPM DOWN TO 0 PPM. 99,6 % CORE RECOVERY.
dTimEnd: 1997-08-15T10:00:00+02:00
dTimStart: 1997-08-15T08:30:00+02:00
md: 0
phase: fixed
proprietaryCode: formation evaluation -- trip
state: ok
stateDetailActivity: success
comments: SERVICED CORE BARREL AND MADE UP COREBARREL WITH INNERBARREL.
dTimEnd: 1997-08-15T11:30:00+02:00
dTimStart: 1997-08-15T10:00:00+02:00
md: 0
phase: fixed
proprietaryCode: formation evaluation -- trip
state: ok
stateDetailActivity: success
comments: RIH TO 3820M. BROKE CIRC EACH 1000M.
dTimEnd: 1997-08-15T17:30:00+02:00
dTimStart: 1997-08-15T11:30:00+02:00
md: 3820
phase: fixed
proprietaryCode: formation evaluation -- trip
state: ok
stateDetailActivity: success
comments: WASH AND ROTATE FROM 3820 TO BTM AT 3908,5M.
dTimEnd: 1997-08-15T18:30:00+02:00
dTimStart: 1997-08-15T17:30:00+02:00
md: 3908
phase: fixed
proprietaryCode: formation evaluation -- trip
state: ok
stateDetailActivity: success
comments: CIRC BTM'S UP IN ORDER TO CLEAN WELL FOR GAS. MAX GAS 4,5 %, DECLINED TO 1 %.
dTimEnd: 1997-08-15T20:00:00+02:00
dTimStart: 1997-08-15T18:30:00+02:00
md: 3908
phase: fixed
proprietaryCode: formation evaluation -- circulating conditioning
state: ok
stateDetailActivity: success
comments: DROP BALL AND SPACE OUT STRING. SEATED BALL IN COREBARREL WITH 17 BAR PRESSURE INCREASE. TAKE SCR'S.
dTimEnd: 1997-08-15T21:00:00+02:00
dTimStart: 1997-08-15T20:00:00+02:00
md: 3908
phase: fixed
proprietaryCode: formation evaluation -- circulating conditioning
state: ok
stateDetailActivity: success
comments: CUT CORE NO 4 FROM 3908,5 TO 3935,5M. MAX GAS FROM CORING 9%.
dTimEnd: 1997-08-15T23:00:00+02:00
dTimStart: 1997-08-15T21:00:00+02:00
md: 3935
phase: fixed
proprietaryCode: formation evaluation -- core
state: ok
stateDetailActivity: success
comments: BROKE CORE ON 3RD ATTEMPT HOLDING 16T OVER PULL. PUMPED AND ROTATED SLOWLY WHILE PULLING BACK TO 3820M.
dTimEnd: 1997-08-16T00:00:00+02:00
dTimStart: 1997-08-15T23:00:00+02:00
md: 3820
phase: fixed
proprietaryCode: formation evaluation -- trip
state: ok
stateDetailActivity: success
Lithology and shows:
dTim: 1997-08-16T00:00:00+02:00
lithology: SANDSTONE
mdBottom: -999.99
mdTop: 3881.5