16/7-10
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Generell informasjon
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Brønnhistorie
GeneralWell 16/7-10 was drilled on the Theta Prospect in the South Viking Graben in the North Sea, close to the Sleipner field. The prospect was seen as a possible extension of the 16/7-2 discovery in the Ty Formation. The main target was Ty Formation turbidite sands.Operations and resultsThe semi-submersible installation Ocean Vanguard drilled this well. A 8 1/2" pilot hole 16/7-U-1 was drilled to 610.5 m prior to the main well due to shallow gas warning. At this depth a substantial amount of shallow gas was detected with the ROV sonar. The pilot hole was plugged back. Wildcat well 16/7-10 was spudded on 9 July 2011, 16 m away from the pilot hole. After intermediate wire line logging in the 12 1/4" section, it was not possible to get the 9 5/8" liner to section TD. A technical side-track (16/7-10 T2) was performed from the 16/7-10 well, with a kick-off point at 1916 m, and drilled to final TD at 2514 m in the Late Cretaceous Tor Formation. The well was drilled with sea water and sweeps down to 503 m, with Performadril mud from 503 m to 1151 m, and with XP-07 #14 oil based mud from 1151 m to TD.Rocks of Quaternary, Tertiary and Cretaceous age were penetrated. The Ty Formation was encountered with Good reservoir sand at 2348.5 m (2347.5 m TVD), 35.5 m deeper than prognosed. Results of the Theta NE well showed a considerably reduced hydrocarbon column relative to prognosis (2 m gross HC bearing interval vs. 36 m expected). The GWC was found to be at 2349 m (2328 m TVD MSL), the same as encountered at 16/7-2, supporting pressure communication between the two wells. Reservoir parameters were also similar, with Ty Formation 115 m gross reservoir interval, 88 % Net to Gross and 27 % porosity. Hydrocarbon saturation was estimated to 51 %. No oil shows were reported from the well. The use of oil based mud obscured visible shows analysis below 1151 mNo conventional cores were cut in the well. MDT wire line fluid samples were taken in the Ty Formation at 2348.6 m (2347.6 m TVD; gas/condensate with ca 3% hydrocarbon contamination from mud) and 2383.0 m (2382 m TVD; water).The well was permanently abandoned on 13 September 2011 as a minor gas discovery.TestingNo drill stem test was performed. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]510.002270.00 -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligMDT2348.700.00CONDENSATE09.02.2011 - 00:00NO -
Foringsrør og formasjonsstyrketester
Foringsrør og formasjonsstyrketester Type utforingUtforing diam.
[tommer]Utforing dybde
[m]Brønnbane diam.
[tommer]Brønnbane dyp
[m]LOT/FIT slam eqv.
[g/cm3]Type formasjonstestCONDUCTOR30172.036172.00.00LOTSURF.COND.20497.026503.01.46LOTPILOT HOLE610.08 1/2610.00.00LOTINTERM.13 3/81151.017 1/21151.01.76LOTINTERM.9 5/81905.012 1/42265.00.00LOTLINER72282.08 1/22282.01.35LOTOPEN HOLE2514.062514.00.00LOT -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]GPIT MSIP PEX5031160GPIT MSIP PEX GR10302265GPIT MSIP PEX GR21402513MDT23472347MDT24902490MDT TLC23482383MWD LWD - ARC ECOS SON TELES107610MWD LWD - ARCVRES6 TELE19442283MWD LWD - ARCVRS9 TELES5032278MWD LWD - IMPVRES4 VPWD422832514PEX GR11172185USIT20002280VSP19562350VSP GR5202183 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet10779311071398141419512002217221722217226423352349246724672500 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling1501.0315.0Spud Mud3471.3319.0Spud Mud4871.3120.0Spud Mud5031.2412.0Performadril11601.3028.0Performadril11801.1819.0XP-07 - #1419061.4532.0XP-07 - #1419441.4523.0XP-07 - #1420721.3116.0Spud Mud20721.3015.0Spud Mud22781.3519.0XP-07 - #1422781.3521.0XP-07 - #1422831.4725.0XP-07 - #1425141.2417.0XP-07 - #1425141.2016.0XP-07 - #14 -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1160.0[m]DCFUGRO1180.0[m]DCFUGRO1200.0[m]DCFUGRO1220.0[m]DCFUGRO1240.0[m]DCFUGRO1260.0[m]DCFUGRO1280.0[m]DCFUGRO1300.0[m]DCFUGRO1330.0[m]DCFUGRO1340.0[m]DCFUGRO1370.0[m]DCFUGRO1390.0[m]DCFUGRO1400.0[m]DCFUGRO1420.0[m]DCFUGRO1440.0[m]DCFUGRO1460.0[m]DCFUGRO1480.0[m]DCFUGRO1500.0[m]DCFUGRO1520.0[m]DCFUGRO1540.0[m]DCFUGRO1560.0[m]DCFUGRO1580.0[m]DCFUGRO1600.0[m]DCFUGRO1620.0[m]DCFUGRO1640.0[m]DCFUGRO1660.0[m]DCFUGRO1680.0[m]DCFUGRO1700.0[m]DCFUGRO1720.0[m]DCFUGRO1740.0[m]DCFUGRO1760.0[m]DCFUGRO1790.0[m]DCFUGRO1800.0[m]DCFUGRO1820.0[m]DCFUGRO1840.0[m]DCFUGRO1860.0[m]DCFUGRO1880.0[m]DCFUGRO1900.0[m]DCFUGRO1920.0[m]DCFUGRO1940.0[m]DCFUGRO1960.0[m]DCFUGRO1980.0[m]DCFUGRO2000.0[m]DCFUGRO2020.0[m]DCFUGRO2040.0[m]DCFUGRO2060.0[m]DCFUGRO2080.0[m]DCFUGRO2100.0[m]DCFUGRO2120.0[m]DCFUGRO2140.0[m]DCFUGRO2160.0[m]DCFUGRO2180.0[m]DCFUGRO2200.0[m]DCFUGRO2220.0[m]DCFUGRO2240.0[m]DCFUGRO2270.0[m]DCFUGRO2280.0[m]DCFUGRO2283.0[m]DCFUGRO2289.0[m]DCFUGRO2295.0[m]DCFUGRO2301.0[m]DCFUGRO2307.0[m]DCFUGRO2313.0[m]DCFUGRO2319.0[m]DCFUGRO2325.0[m]DCFUGRO2331.0[m]DCFUGRO2337.0[m]DCFUGRO2343.0[m]DCFUGRO2349.0[m]DCFUGRO2355.0[m]DCFUGRO2361.0[m]DCFUGRO2367.0[m]DCFUGRO2373.0[m]DCFUGRO2379.0[m]DCFUGRO2385.0[m]DCFUGRO2391.0[m]DCFUGRO2397.0[m]DCFUGRO2403.0[m]DCFUGRO2406.0[m]DCFUGRO2412.0[m]DCFUGRO2418.0[m]DCFUGRO2424.0[m]DCFUGRO2430.0[m]DCFUGRO2436.0[m]DCFUGRO2442.0[m]DCFUGRO2448.0[m]DCFUGRO2454.0[m]DCFUGRO2460.0[m]DCFUGRO2466.0[m]DCFUGRO2484.0[m]DCFUGRO2490.0[m]DCFUGRO2496.0[m]DCFUGRO2502.0[m]DCFUGRO2508.0[m]DCFUGRO2515.0[m]DCFUGRO