34/10-37 A
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Generell informasjon
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Brønnhistorie
GeneralWell 34/10-37 was drilled in the Tampen Spur area, ca 8 km WNW of the Gullfaks Sør Field. The results from 34/10-37 indicated a more complex fault pattern at the crest of the structure than expected and it was decided to drill a sidetrack.The objective of the sidetrack, 34/10 - 37 A, was to investigate the presence of a low angle fault at the crest of the D-prospect, which could explain the missing sections of the Tarbert Formation in 34/10-37. The well was planned to penetrate the top of the Brent Group at a higher level than in 34/10-37 and terminate 50 m TVD below the oil-water contact in the Brent Group.Operations and resultsAppraisal well 34/10 - 37 A was kicked off through casing at 2049 m in well 34/10-37 on 22 February 1995 using the semi-submersible installation Deepsea Bergen. It was drilled to TD at 2950 m in the Middle Jurassic Ness Formation. No significant problems were reported from the operations. The well was drilled with KCl/PAC mud from kick-off to TD.In addition to the formations encountered in 34/10-37 the well encountered the Rødby Formation, the Mime Formation and the Draupne Formation. Well 34/10-37 A penetrated the top of the Brent Group 15 m deeper than prognosed, but higher than in 34/10-37. An almost complete sequence of the Tarbert Formation was found in this well. The Brent Group proved to be hydrocarbon bearing with an "oil down to" at 2622 m TVD MSL.Four conventional core were cut from 2664 m to 2741 m in the Tarbert and Ness Formations. No FMT samples were collected in the well.The well was suspended on 3 April 1995 as an oil appraisalTestingThe well was tested over the interval 2667 to 2697 m, and flowed with a rate of 1950 Sm3/day oil and 645000 Sm3/day gas (GOR = 330 Sm3/Sm3). The bottom hole temperature measured during the test was 97.2 deg C. A total of 4235 Sm3 oil was transferred to the vessel Crystal Sea and shipped to Mongstad. -
Borekaks i Sokkeldirektoratet
Borekaks i Sokkeldirektoratet Borekaks tilgjengelig for prøvetaking?YESBorekaks i Sokkeldirektoratet Borekaksprøve, topp dybde [m]Borekaksprøve, bunn dybde [m]2060.002950.00 -
Borekjerner i Sokkeldirektoratet
Borekjerner i Sokkeldirektoratet Kjerneprøve nummerKjerneprøve - topp dybdeKjerneprøve - bunn dybdeKjerneprøve dybde - enhet12664.02684.1[m ]22684.52704.9[m ]32705.52717.3[m ]42720.52729.3[m ]52731.02740.8[m ]Borekjerner i Sokkeldirektoratet Total kjerneprøve lengde [m]70.8Borekjerner i Sokkeldirektoratet Kjerner tilgjengelig for prøvetaking?YES -
Kjernebilder
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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 formasjonstestOPEN HOLE2950.08 1/22950.00.00LOT -
Borestrengtester (DST)
Borestrengtester (DST) Test nummerFra dybde MD
[m]Til dybde MD
[m]Reduksjonsventil størrelse
[mm]1.02667269720.01.12667011.11.2266700.01.3266700.01.42667011.1Borestrengtester (DST) Test nummerEndelig avstengningstrykk
[MPa]Endelig strømningstrykk
[MPa]Bunnhullstrykk
[MPa]Borehullstemperatur
[°C]1.08.50035.400971.11.21.31.4Borestrengtester (DST) Test nummerOlje produksjon
[Sm3/dag]Gass produksjon
[Sm3/dag]Oljetetthet
[g/cm3]Gasstyngde rel. luftGOR
[m3/m3]1.019506450000.8200.7303301.15000.8200.7203001.219690.8200.7303201.319690.8200.7303201.4595309 -
Logger
Logger Type loggTopp dyp for logg [m]Bunn dyp for logg [m]DIPLOG GR25452951DLL MLL DAC ZDL CN DSL25502946FMT QDYNE GR26602903MWD - RGD20522950SWC GR25252912VSP22152882 -
Litostratigrafi
Litostratigrafi Topp Dyb [mMD RKB]Litostrat. enhet1639169581754175418301858256925692576258725872593266026602718 -
Geokjemisk informasjon
Geokjemisk informasjon Dokument navnDokument formatDokument størrelse [KB]pdf5.16 -
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk)
Dokumenter – rapportert av utvinningstillatelsen (frigitt ihht til regelverk) Dokument navnDokument formatDokument størrelse [KB]pdf33.54 -
Boreslam
Boreslam Dybde MD [m]Egenvekt, slam [g/cm3]Viskositet, slam [mPa.s]Flytegrense [Pa]Type slamDato, måling20561.6250.0WATER BASED22101.5730.0WATER BASED23621.5727.0WATER BASED26501.5737.0WATER BASED26841.5736.0WATER BASED29501.5741.0WATER BASED -
Palynologiske preparater i Sokkeldirektoratet
Palynologiske preparater i Sokkeldirektoratet Prøve dybdeDybde enhetPrøve typeLaboratorie2510.0[m]DCGEOST2520.0[m]DCGEOST2530.0[m]DCGEOST2540.0[m]DCGEOST2550.0[m]DCGEOST2560.0[m]DCGEOST2593.0[m]SWCSTATO2596.0[m]SWCSTATO2602.0[m]DCGEOST2608.0[m]DCGEOST2614.0[m]DCGEOST2620.0[m]DCGEOST2626.0[m]DCGEOST2629.0[m]DCGEOST2635.0[m]DCGEOST2641.0[m]DCGEOST2647.0[m]DCGEOST2653.0[m]SWCSTATO2657.0[m]SWCSTATO2664.0[m]CGEOST2668.0[m]CGEOST2672.0[m]CGEOST2679.0[m]CGEOST2685.0[m]CGEOST2691.0[m]CGEOST2696.0[m]CGEOST2699.0[m]CGEOST2702.0[m]CGEOST2708.0[m]CGEOST2711.0[m]CGEOST2716.0[m]CGEOST2721.0[m]CGEOST2724.0[m]CGEOST2727.0[m]CGEOST2729.0[m]CGEOST2731.0[m]CGEOST2735.0[m]CGEOST2738.0[m]CGEOST2740.0[m]CGEOST2743.0[m]DCGEOST2747.0[m]SWCSTATO2749.0[m]DCGEOST2755.0[m]DCGEOST2761.0[m]DCGEOST2767.0[m]DCGEOST2773.0[m]DCGEOST2779.0[m]DCGEOST2785.0[m]DCGEOST2793.0[m]SWCSTATO2797.0[m]DCGEOST2803.0[m]DCGEOST2804.0[m]SWCSTATO2809.0[m]DCGEOST2815.0[m]DCGEOST2817.0[m]SWCSTATO2821.0[m]DCGEOST2827.0[m]DCGEOST2833.0[m]DCGEOST2835.0[m]SWCSTATO2842.0[m]DCGEOST2849.0[m]SWCSTATO2857.0[m]DCGEOST2862.0[m]SWCSTATO2869.0[m]DCGEOST2875.0[m]DCGEOST2881.0[m]DCGEOST2887.0[m]DCGEOST2894.0[m]SWCSTATO2899.0[m]DCGEOST2908.0[m]DCGEOST2914.0[m]DCGEOST2920.0[m]DCGEOST2929.0[m]DCGEOST2935.0[m]DCGEOST2941.0[m]DCGEOST2944.0[m]DCGEOST2950.0[m]DCGEOST2993.0[m]DCGEOST