VALHALL
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General information
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Picture
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Discoveries included
Discoveries included Discovery name -
Activity status — history
Activity status — history StatusStatus fromStatus toProducing01.10.1982Approved for production02.06.197730.09.1982 -
Located in
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PDO – Plan for Development and Operations
PDO – Plan for Development and Operations Date PDO approvedDescriptionType28.06.2023Endret PUD Vallhall (PWP) behandlet i Stortinget 5.6.2023 og godkjent i brev av 28.6.2023Changed PDO23.03.2018Valhall Flanke VestPDO14.06.2007Valhall videreutvikling Valhall PH av StortingetPDO09.11.2001Vallhall-flanker av Kongen i StatsrådPDO03.11.2000Valhall vanninjeksjon av Kongen i StatsrådPDO02.06.1995Valhall WP av Kongen i StatsrådPDO02.06.1977behandlet i StortingetPDO -
Ownership — full history
Ownership — full history Owner kindOwner nameOwnership from dateOwnership to dateBUSINESS ARRANGEMENT AREA28.09.1982PRODUCTION LICENSE02.06.197727.09.1982 -
Operatorship — full history
Operatorship — full history Company nameOperatorship fromOperatorship to30.11.201612.03.200229.11.201623.12.199911.03.200202.06.197722.12.1999 -
Licensees — full history
Licensees — full history Company nameNation codeCompany share [%]Date licensee fromDate licensee toNO90.00000022.12.2017NO10.00000022.12.2017NO64.04688030.11.201621.12.2017NO35.95313030.11.201621.12.2017NO64.04688001.01.201029.11.2016NO35.95313001.01.201029.11.2016NO28.09377026.06.200631.12.2009NO28.09376026.06.200631.12.2009NO28.09376026.06.200631.12.2009NO15.71871026.06.200631.12.2009NO28.09377006.05.200325.06.2006NO28.09376006.05.200325.06.2006NO28.09376006.05.200325.06.2006NO15.71871006.05.200325.06.2006NO28.09377012.03.200205.05.2003NO28.09376012.03.200205.05.2003NO28.09376012.03.200205.05.2003NO15.71871012.03.200205.05.2003NO28.09377031.12.200111.03.2002NO28.09376031.12.200111.03.2002NO28.09376031.12.200111.03.2002NO15.71871031.12.200111.03.2002NO28.09377024.07.200030.12.2001NO28.09376024.07.200030.12.2001NO28.09376024.07.200030.12.2001NO15.71871024.07.200030.12.2001NO28.09377023.12.199923.07.2000NO28.09376023.12.199923.07.2000NO28.09376023.12.199923.07.2000NO15.71871023.12.199923.07.2000NO28.09377025.02.199222.12.1999NO28.09376025.02.199222.12.1999NO28.09376025.02.199222.12.1999NO15.71871025.02.199222.12.1999NO28.09377014.04.198924.02.1992NO28.09376014.04.198924.02.1992NO28.09376014.04.198924.02.1992NO15.71871014.04.198924.02.1992NO28.09377028.09.198213.04.1989NO28.09376028.09.198213.04.1989NO28.09376028.09.198213.04.1989NO15.71871028.09.198213.04.1989NO28.33333002.06.197727.09.1982NO28.33333002.06.197727.09.1982NO28.33333002.06.197727.09.1982NO15.00000002.06.197727.09.1982 -
Description
Description TypeTextDate updatedDevelopmentValhall is a field in the southern part of the Norwegian sector in the North Sea. The water depth is 70 metres. Valhall was discovered in 1975, and the initial plan for development and operation (PDO) was approved in 1977. The field was originally developed with three facilities for accommodation (QP), drilling (DP), and processing and compression (PCP). The production started in 1982. A PDO for a wellhead facility (WP) was approved in 1995 and for a water injection platform (IP) in 2000. Bridges connect the platforms. A PDO for two wellhead platforms on the northern and southern flanks was approved in 2001. A PDO for Valhall Redevelopment was approved in 2007. The plan included an accommodation and processing platform (PH) to replace aging facilities on the field. The PH-platform is supplied with power from shore. A PDO for Valhall Flank West which included a normally unmanned wellhead platform was approved in 2018, and the production started in 2019. An amended PDO for a new production and wellhead platform (PWP) was approved in June 2023.14.12.2023ReservoirValhall produces oil from chalk in the Upper Cretaceous Hod and Tor Formations. The reservoir depth is 2400 metres. The Tor Formation chalk is fine-grained and has good reservoir quality. Considerable fracturing allows oil and water to flow more easily than in the underlying Hod Formation.14.12.2023Recovery strategyThe field was initially produced with pressure depletion and compaction drive. Water injection in the centre of the field started in 2004. Chalk compaction as a result of pressure depletion and water weakening has led to seabed subsidence. Gas lift is used to optimise production in most of the production wells.28.02.2023TransportOil and NGL (Natural Gas Liquids) are routed via pipeline to the Ekofisk field and further to Teesside in the UK. Gas is sent via Norpipe to Emden in Germany.28.02.2023StatusThe Valhall field has produced more than one billion barrels of oil equivalents, which is three times more than the original PDO estimate. New completion technology to increase recovery from the tight chalk reservoir is implemented in a new producer drilled on the northern flank of Valhall. Drilling of new wells will continue in the foreseeable future. Decommissioning of the QP, PCP and DP facilities must be completed by the end of 2026. Start-up of production from the new platform (PWP) is expected for 2027.14.12.2023 -
Investments (expected)
Investments (expected) The operator's future investments related to the reserves from 2023 [mill NOK 2023-kroner]. The stated investment estimate has not been corrected for possible investment sharing.48783 -
Investments (historical)
Investments (historical) Investments
[mill NOK nominal values]Sum9745520222495202131062020424920197547201839272017163820162462015857201421432013356720126170201148662010706320098141200864452007364220061956200517822004183720033837200238142001362020001483199982919981471199714701996110919954741994212199318719922991991161199093198910219882321987261986269198537319843561983380198212701981128219801203197980719782641977156 -
Production , saleable
Production , saleable MonthNet - oil
[mill Sm3]Net - gas
[bill Sm3]Net - condensate
[mill Sm3]Net - NGL
[mill Sm3]Net - oil equivalents
[mill Sm3]Sum130.52875324.6790460.0000007.844913163.0527121.4784540.2464510.0000000.0981061.8230112.0052660.3431180.0000000.1255842.4739682.0307410.3510600.0000000.1259802.5077812.3987880.4042380.0000000.1530572.9560832.6405790.4143650.0000000.1728233.2277672.0459160.3161300.0000000.1085792.4706251.8627560.3071350.0000000.0879512.2578421.7694240.3051860.0000000.0849862.1595961.9970180.3701420.0000000.0996262.4667862.4027880.4362870.0000000.1233472.9624222.2251570.3812620.0000000.1148092.7212281.7683200.2370910.0000000.0757872.0811980.9638980.1342200.0000000.0434721.1415901.6422760.2495560.0000000.0742331.9660652.0901800.3382910.0000000.1038302.5323012.2659210.3491540.0000000.1115662.7266412.8108970.4858770.0000000.1441203.4408943.4111590.6083510.0000000.1659784.1854884.0411680.7724530.0000000.2101285.0237494.8297800.9564850.0000000.2320966.0183614.7726300.9676590.0000000.2339845.9742734.1551640.6322430.0000000.1970924.9844994.1805220.8750370.0000000.1996555.2552144.3628040.8823340.0000000.2129045.4580424.5779510.8893740.0000000.2215975.6889225.3102481.0360550.0000000.2583366.6046395.1684620.9648300.0000000.2414906.3747824.5268670.9403990.0000000.2512125.7184784.0346000.8800800.0000000.2266245.1413043.4898730.7875300.0000000.1906534.4680563.1548780.6674060.0000000.1654593.9877433.5366840.7998650.0000000.1905394.5270884.0462690.9275890.0000000.2283745.2022323.7441950.8183780.0000000.2488154.8113884.1564920.9188100.0000000.3750985.4504004.2387870.8416520.0000000.3760975.4565363.6987220.7094890.0000000.3344864.7426973.4781450.6218390.0000000.3359524.4359362.5383800.4295650.0000000.2771493.2450942.7811790.4680090.0000000.3129553.5621432.8433190.5127310.0000000.2416533.5977030.9666870.1013200.0000000.0666711.1346780.0854090.0000000.0000000.0020600.087469 -
Production , sum wellbores
Production , sum wellbores MonthGross - oil
[mill Sm3]Gross - gas
[bill Sm3]Gross - condensate
[mill Sm3]Gross - oil equivalents
[mill Sm3]Sum133.54839028.9785580.000000162.5269481.5915440.2496990.0000001.8412432.1660080.2514750.0000002.4174832.1163680.2109210.0000002.3272892.3366080.4856380.0000002.8222462.5676660.5007380.0000003.0684041.9784210.3833930.0000002.3618141.7929170.3708390.0000002.1637561.7029550.3640730.0000002.0670281.9228980.4402930.0000002.3631912.2980080.5232660.0000002.8212742.1322990.4612540.0000002.5935531.7096160.3198930.0000002.0295090.9330960.2063850.0000001.1394811.5826930.3661620.0000001.9488552.0256850.4846550.0000002.5103402.2018290.4838440.0000002.6856732.7679370.6494510.0000003.4173883.4323160.8116240.0000004.2439404.0513380.9894200.0000005.0407584.7292881.1558580.0000005.8851464.6777181.1596410.0000005.8373594.0750831.1033710.0000005.1784544.1079431.0888750.0000005.1968184.3036861.1083020.0000005.4119884.4974151.1076110.0000005.6050265.5997521.0846670.0000006.6844195.4403421.0232410.0000006.4635834.8652391.0066710.0000005.8719104.2413160.9369240.0000005.1782403.6614320.8451840.0000004.5066163.3091560.7217010.0000004.0308573.6992180.8449570.0000004.5441754.2306770.9730720.0000005.2037493.9358770.8757030.0000004.8115804.4912250.9966960.0000005.4879214.5744070.9174680.0000005.4918754.0145610.8020810.0000004.8166423.7888290.7162440.0000004.505073