- Generell informasjon
Brønnbane navn
7016/2-1
Type
EXPLORATION
Formål
WILDCAT
Status
P&A
Pressemelding
Faktakart i nytt vindu
Hovedområde
BARENTS SEA
Brønn navn
7016/2-1
Seismisk lokalisering
Survey MCD 3D troms 111 inline 1408 & trace 3478
Boret i utvinningstillatelse
Boreoperatør
Eni Norge AS
Boretillatelse
1465-L
Boreinnretning
Bore dager
113
Borestart
14.07.2013
Boreslutt
03.11.2013
Frigitt dato
01.10.2015
Publiseringsdato
01.10.2015
Opprinnelig formål
WILDCAT
Gjenåpnet
NO
Innhold
DRY
Funnbrønnbane
NO
Avstand, boredekk - midlere havflate [m]
34.0
Vanndybde ved midlere havflate [m]
1366.0
Totalt målt dybde (MD) [m RKB]
4061.0
Totalt vertikalt dybde (TVD) [m RKB]
4060.0
Maks inklinasjon [°]
9.1
Eldste penetrerte alder
LATE PALEOCENE
Eldste penetrerte formasjon
SOTBAKKEN GP
Geodetisk datum
ED50
NS grader
70° 50' 48.93'' N
ØV grader
16° 33' 33.23'' E
NS UTM [m]
7861269.63
ØV UTM [m]
557093.48
UTM sone
33
NPDID for brønnbanen
7232
 
 
- Brønnhistorie
General
Well 7016/2-1 was drilled on the Bønna prospect in the Harstad Basin in the remote south-west part of the Barents Sea. The objective of the well was to prove petroleum in Eocene and Paleocene reservoir rocks belonging to the Sotbakken Group.
Operations and results
Between 3 August and 6 August 2012 a 9 7/8" pilot hole 7016/2-U-1 was drilled from the seabed to 1984 m using the semi-submersible installation Scarabeo 8. The pilot was drilled 50 m away from the planned location of the main well. It was logged with MWD gamma ray, resistivity and sonic logging tools together with visual and sonar observation of the seabed by an ROV. There was no indication of shallow gas.
The year after, on 14 July 2013, Scarabeo 8 returned to the location and spudded wildcat well 7016/2-1. Due to wellbore stability issues, the well was sidetracked on 31 August 2013 at 2396 m after reaching the 12 1/4" section TD at 3035 m. The sidetrack was drilled to TD at 4061 m in Late Paleocene sediments in the Sotbakken Group, Torsk Formation.
The well was drilled with seawater and hi-vis sweeps down to 1973 m, with Glydril mud from 1973 m to 2376 m, and with FormPro/brine mud from 2376 m to 2396 m (TD) in the primary well. The sidetrack well was drilled with Glydril mud from kick-off to final TD.
No Sandstone reservoirs were encountered and no significant gas shows above background gas were recorded. Only minor gas shows were observed over depth ranges 2730 - 2745 m, 2760 - 2772 m and 3400 - 3408 m, probably corresponding to more drillable and porous zones. Eni Norge wellsite geologists examined cuttings for the presence of oil shows. No shows were observed.
No conventional or sidewall cores were taken. No wireline pressure points or fluid samples were taken.
The well was permanently abandoned on 3 November 2013 as a dry well.
Testing
No drill stem test was performed.
 
 
- Borekaks i OD
Borekaksprøve, topp dybde [m]
Borekaksprøve, bunn dybde [m]
1980.00
3035.00
Borekaks tilgjengelig for prøvetaking?
YES
 
 
- Litostratigrafi
Top depth [m]
Lithostrat. unit
1400
1400
3091
3091
 
 
- Logger
Type logg
Topp dyp for logg [m]
Bunn dyp for logg [m]
GR RES DIR SON
1435
2370
GR RES DIR SON
3176
3324
GR RES ECD DIR DEN NEU
3070
4057
RAB NBGR GR RES ECD
2292
3101
 
 
- Foringinsrør og formasjonsstyrketester
Type utforing
Utforing diam.
[tommer]
Utforing dybde
[m]
Brønnbane diam.
[tommer]
Brønnbane dyp
[m]
Slam egenvekt ekvivalent
[g/cm3]
Type formasjonstest
CONDUCTOR
36
1460.0
42
1460.0
1.23
LOT
SURF.COND.
20
1968.0
24
1973.0
1.42
LOT
LINER
16
2370.0
17 1/2
2376.0
1.54
FIT
INTERM.
13 3/8
2782.0
14 3/4
2782.0
0.00
INTERM.
9 5/8
3102.0
12 1/4
3102.0
0.00
OPEN HOLE
4061.0
8 1/2
4061.0
0.00
 
 
 
- Boreslam
Dybde MD [m]
Egenvekt, slam [g/cm3]
Viskositet, slam [mPa.s]
Flytegrense [Pa]
Type slam
Dato, måling
1430
0.00
23000.0
 
GL
 
1973
0.00
1000.0
 
GE
 
2795
0.00
16000.0
 
KF
 
2845
0.00
24000.0
 
GL
 
3280
0.00
21000.0
 
GL
 
4061
0.00
21000.0
 
GL