6406/9-1
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Generell informasjon
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Brønnhistorie
GeneralWell 6406/9-1 is located in the southern Haltenbanken area, offshore Mid Norway. The well was drilled near the crest of the prospect structure, a rotated fault block. The primary objective of well 6406/9-1 was to test the hydrocarbon potential in the Middle to Early Jurassic reservoirs of the Garn, Ile, Ror/Tofte and Tilje Formations, and to production test possible hydrocarbon occurrences.Operations and resultsWildcat well 6406/9-1 was spudded with the semi-submersible installation Transocean Leader on 15 June 2004 and drilled to TD at 5080 m in Early Jurassic sediments of the Åre Formation. The well was a high temperature / high pressure well, with a formation temperature of ca 184 deg C at TD, according to DST and wire line measurements. The well was drilled with seawater and bentonite sweeps down to 1375 m, with Glydril mud from 1375 m to 2893 m, and with Paratherm oil based (paraffin base) mud from 2893 m to TD. Shallow gas was neither predicted nor encountered. Due to labour disputes and bad weather the well was not terminated until 2 June 2005.The Jurassic Ile, Tofte, Tilje and Åre Formations were all found to be entirely gas bearing. The Garn Formation, a reservoir interval in some of the neighbouring wells, was found to be shaled out here. The presence of hydrocarbons was confirmed by RCI samples in the Ile, Tofte and Tilje. The discovery appeared to be a stacked reservoir sequence with up to 5 different compartments with small pressure differences between the formations. All reservoirs were intersected in Gas-Down-To situations. The total hydrocarbon column in-well was 492.5 m. The gas was significantly drier than expected when compared to other accumulations in the area. Reservoir quality was very variable with large sections of low/medium permeability, but also two distinct sands of exceedingly high quality.A total of four cores were taken from the Early and Middle Jurassic intervals. The first core was taken from the upper part of the Ile Formation and is 13.44 m long. Operations were cut short because of jamming of the core, possibly due to junk in the hole. The second core was taken from the lower part of the Ile Formation and is 27.7 m long. A 26 m core was taken from the Tofte Formation as well as a 28.47 m core from the Lower Ror Formation. The RCI fluid samples sampled gas from four depths: 4625.5 m (Ile), 4682.1 m (Tofte), 4908.5 m (upper Tilje), and 5021.9 m (Tilje).The well was permanently abandoned on 2 June 2005 as a gas discovery.TestingTwo full well tests were performed aimed at the most promising Formations: the lower Tilje and the lower Ile. The perforation intervals were limited and selected to include the two high quality sands.DST 1 tested the interval 4989.2 - 5029.75 m in the lower Tilje Formation. It produced gas at a rate of 1410000 Sm3/day and with a condensate/gas ratio of less than 1.0E-6 Sm3/Sm3 (GOR > 1000000 Sm3/Sm3). The CO2 content was 7-8% (vol) and the H2S content was 20 - 30 ppm on average. DST 2 tested the interval 4619 - 4633.7 m in the lower Ile Formation. It produced gas at a rate of 770000 Sm3/day and with a condensate/gas ratio of ca 25E-6 Sm3/Sm3 (GOR ca 40000 Sm3/Sm3). The CO2 content was 7-8% (vol), and the H2S content was 15-18 ppm on average.Maximum temperatures recorded were 182 and 172 deg C in DST 1 and DST 2, respectively. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]1390.005079.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet14546.54559.9[m ]24591.04618.8[m ]34684.04710.1[m ]44784.04812.5[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]95.8Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie1390.0[m]DCICHRON1430.0[m]DCICHRON1490.0[m]DCICHRON1530.0[m]DCICHRON1560.0[m]DCICHRON1600.0[m]DCICHRON1660.0[m]DCICHRON1680.0[m]DCICHRON1720.0[m]DCICHRON1780.0[m]DCICHRON1800.0[m]DCICHRON1840.0[m]DCICHRON1880.0[m]DCICHRON1910.0[m]DCICHRON1940.0[m]DCICHRON1990.0[m]DCICHRON2020.0[m]DCICHRON2050.0[m]DCICHRON2080.0[m]DCICHRON2110.0[m]DCICHRON2140.0[m]DCICHRON2180.0[m]DCICHRON2200.0[m]DCICHRON2220.0[m]DCICHRON2250.0[m]DCICHRON2265.0[m]DCICHRON2275.0[m]DCICHRON2280.0[m]DCICHRON2295.0[m]DCICHRON2305.0[m]DCICHRON2315.0[m]DCICHRON2320.0[m]DCICHRON2325.0[m]DCICHRON2335.0[m]DCICHRON2340.0[m]DCICHRON2350.0[m]DCICHRON2360.0[m]DCICHRON2365.0[m]DCICHRON2370.0[m]DCICHRON2375.0[m]DCICHRON2380.0[m]DCICHRON2385.0[m]DCICHRON2390.0[m]DCICHRON2395.0[m]DCICHRON2400.0[m]DCICHRON3155.0[m]DCICHRON3180.0[m]DCICHRON3285.0[m]DCICHRON3320.0[m]DCICHRON3330.0[m]DCICHRON3350.0[m]DCICHRON3400.0[m]DCICHRON3420.0[m]DCICHRON3460.0[m]DCICHRON3490.0[m]DCICHRON3530.0[m]DCICHRON3550.0[m]DCICHRON3570.0[m]DCICHRON3780.0[m]DCICHRON3790.0[m]DCICHRON3805.0[m]DCICHRON3820.0[m]DCICHRON3850.0[m]DCICHRON3865.0[m]DCICHRON3875.0[m]DCICHRON3890.0[m]DCICHRON3905.0[m]DCICHRON3930.0[m]DCICHRON3940.0[m]DCICHRON4068.0[m]DCICHRON4071.0[m]DCICHRON4080.0[m]DCICHRON4095.0[m]DCICHRON4107.0[m]DCICHRON4125.0[m]DCICHRON4131.0[m]DCICHRON4137.0[m]DCICHRON4143.0[m]DCICHRON4155.0[m]DCICHRON4161.0[m]DCICHRON4173.0[m]DCICHRON4185.0[m]DCICHRON4197.0[m]DCICHRON4203.0[m]DCICHRON4209.0[m]DCICHRON4215.0[m]DCICHRON4221.0[m]DCICHRON4227.0[m]DCICHRON4233.0[m]DCICHRON4239.0[m]DCICHRON4242.0[m]DCICHRON4248.0[m]DCICHRON4251.0[m]DCICHRON4254.0[m]DCICHRON4263.0[m]DCICHRON4266.0[m]DCICHRON4269.0[m]DCICHRON4272.0[m]DCICHRON4281.0[m]DCICHRON4290.0[m]DCICHRON4296.0[m]DCICHRON4335.0[m]DCICHRON4374.0[m]DCICHRON4398.0[m]DCICHRON4419.0[m]DCICHRON4422.0[m]DCICHRON4428.0[m]DCICHRON4434.0[m]DCICHRON4437.0[m]DCICHRON4443.0[m]DCICHRON4449.0[m]DCICHRON4455.0[m]DCICHRON4461.0[m]DCICHRON4470.0[m]DCICHRON4476.0[m]DCICHRON4488.0[m]DCICHRON4506.0[m]DCICHRON4527.0[m]DCICHRON4536.0[m]DCICHRON4542.0[m]DCICHRON4550.3[m]CICHRON4556.8[m]CICHRON4559.3[m]CICHRON4569.0[m]DCICHRON4579.7[m]CICHRON4591.2[m]CICHRON4595.2[m]CICHRON4601.5[m]CICHRON4605.4[m]CICHRON4608.3[m]CICHRON4614.8[m]CICHRON4685.3[m]CICHRON4692.7[m]CICHRON4698.7[m]CICHRON4702.4[m]CICHRON4706.5[m]CICHRON4785.3[m]CICHRON4788.5[m]CICHRON4792.6[m]CICHRON4794.6[m]CICHRON4798.5[m]CICHRON4803.5[m]CICHRON4807.5[m]CICHRON4808.5[m]CICHRON4812.3[m]CICHRON -
Oljeprøver i Sokkeldirektoratet
Oljeprøver i Sokkeldirektoratet Test typeFlaske nummerTopp dyp
MD [m]Bunn dyp
MD [m]Væske typeTest tidspunktPrøver tilgjengeligDST0.000.00CONDENSATE30.04.2005 - 09:00YES -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet333333119116551655224722472333240524052516273229282928340542294254425442694415441544724533463446344681472148265024 -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.04964500422.02.04619463419.0Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.023.000432.028.00049Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.014100002.01440000 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]AIT DSI IS EMS GR ACTS GPIT27774308AIT DSI IS EMS GR ACTS GPIT42915058CBL30963813CBL35105047CMR LDS APS ECS HGNS ACTS ECRD42915058EARTH IMAGER43005075LDS APS HGNS ACTS ECRD27774308MFC READ3264184MFC READ41005020MWD LWD - ARC13674291MWD LWD - ARC45414591MWD LWD - ARC48655068MWD LWD - ARC TST6 STETO42894541MWD LWD - DVD ECOSCOPE42914878MWD LWD - GR3461363RCI MINI DST45224620RCI MINI DST45634684RCI MINI DST49084909RCI MINI DST50075022RCI PRESSURE45005024RCI SAMPLE46255022RCOR46845023VSP15005075 -
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 formasjonstestCONDUCTOR30417.036417.00.00LOTSURF.COND.201375.0261375.01.74LOTINTERM.162243.017 1/22244.01.89LOTINTERM.13 3/82873.014 7/82873.01.95LOTINTERM.9 5/84365.012 1/44365.02.13LOTLINER75080.08 1/25080.00.00LOT -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling4051.05SPUD MUD6441.05SPUD MUD13811.5519.0GLYDRIL MUD18201.8221.0GLYDRILL WBM22481.7030.0GLYDRIL MUD27931.7532.0GLYDRIL MUD32511.7730.0PHARATERM35441.7932.0PHARATERM40751.8740.0PARATHERM43061.8738.0PARATHERM45461.8932.0PARATHERM45911.8836.0PARATHERM47101.9040.0PARATHERM47181.8940.0PARATHERM48801.8840.0PARATHERM50631.8943.0PARATHERM50801.8849.0PARATHERM -
Trykkplott
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