The field was discovered in march 1974 with the drilling of well 33121 and was delineated with drilling of 11 additional wells. The gullfaks oilfield is located in the northeastern part of block 3410 in the norwegian sector of the north sea. Geology in the field that continued to serve as the definitive guide to. Embla was discovered in 1988, and the plan for development and operation pdo was approved in 1990. Sedimentology and palaeogeography of the statfjord. Statfjord field is a structuralstratigraphic trap formed by westward tilting and erosion of. Facies analysis of the statfjord formation rhaetiansinemurian in the tampen spur, horda platform and. Formation structurally 300 m higher than the ad jacent western fault block. Oct 24, 2012 tawengi, khaeri segayer 1996 facies and sequence stratigraphic implications of the statfjord formation upper triassiclower jurassic, northern north sea, uk. Two sequences of fluviatile sediments from snorre oil field are investigated by the smnd isotopic method. As the term implies, field geology means field work, geology as practiced by direct observation of outcrops, exposures, landscapes, and drill cores.
Sedimentology and palaeogeography of the statfjord formation. Listric faults detached within soft shales and are associated with several rotated slump blocks that decrease in size away from the breakaway zone. Full text views reflects the number of pdf downloads, pdfs. The triggering mechanisms were probably earthquakes and high fluid pressures. Examination of wellconstrained threedimensional seismic data demonstrates the role of fault interaction and linkage in controlling the nature of synrift sequences on the hanging wall of the statfjord east fault, a typical late jurassic structure in the northern north sea brent province.
Statfjord field a timeline offshore technology oil. After wiley reverted the publishing rights, i decided to convert geology in the field into an ebook to make it available quickly and at a reasonable price. The c tour facility, which cleans produced water from the ekofisk field, is also located on ekofisk 24 j. The statfjord formation is penetrated by 10 exploration. Effects of heterogeneities in a braided stream channel.
The statfjord oil field is an enormous oil and gas field in the norwegian sector of the north sea operated by statoil it is a transmedian field crossing the norwegian and uk north sea boundary with approximately 15% being in the uk continental shelf waters. Field geology i hometown gis, part 1 october 03, 2005 lab exercise 2. Carey encyclopedia of life support systems eolss 2. The uppermost sandstones are relatively structureless but the presence of marine fossils and glauconite suggests a shallow marine environment deegan and scull, 1977. Field geology i earth, atmospheric, and planetary sciences. The main tectonic event is related to the opening of the viking graben which started in the middle jurassic and which increasingly affected deposition of the bathonianoxfordian.
In 1985 he published a revised manual geology in the field that continued to serve as the definitive guide to geological mapping. The accumulation is trapped in a 68 wnw dipping rotated fault block comprised of jurassictriassic strata sealed by middle to upper jurassic and cretaceous shales reserves are located in three. Brent deltaic sandstones and underlying statfjord fluvial to continental sandstones are truncated by midlate kimmerian unconformities on the crest and east flank of the structure, which is marked by a major fault system. Network of offshore records of geology and stratigraphy. Field geology encyclopedia of life support systems. Gravitational failure is observed along the east flank of the statfjord field, northern north sea. Heavy mineral data provide an independent basis for subdivision and correlation of the statfjordnansen reservoir sequence in the brent field, uk north sea. Facies analysis of the statfjord formation rhaetiansinemurian in the tampen spur. The ebook is now available for purchase as a pdf amazon kindle ebook or as a. Tommeliten gamma is a field in the southern part of the norwegian sector in the north sea, 12 kilometres west of the edda field in the ekofisk area. The engineering geology field manual forms the basis for the mutually beneficial exchange of ideas by geologists and engineers. It represents the shallowest structural element of the tampen spur, and was formed during the upper jurassic to lower cretaceous as a sloping high, with a westerly structural dip gradually decreasing towards the east. Everyone in need of structural geology and thats quite a few of us will certainly find this book very useful.
The statfjord field, blocks 339, 3312 norwegian sector. The complexity of the gullfaks field, the presence of gas in the postjurassic section and a variable water depth have complicated seismic interpretation. There is a good balance between text and figures, and the figures are very good, be it the photos, maps, graphics or principle sketches. Effects of heterogeneities in a braided stream channel sandbody on the simulation of oil recovery. Kimmeridgian shales total petroleum system of the north. Statfjord is a field in the tampen area in the northern part of the north sea, on the border between the norwegian and uk sectors. After my father died in 2015 i was determined to revive his classic field manual which had gone out of print. Osebergfeltet is an offshore oil field with a gas cap in the north sea located 140 km 87 mi northwest of the city of bergen on the southwestern coast of norway.
Kimmeridgian shales total petroleum system of the north sea graben province by donald l. The statfjord oil field is a large oil and gas field covering 580 km2 in the u. The statfjord formation is divided in the type well area statfjord field into three members, the raude member base the eiriksson member and the nansen member top. Ekofisk 24 j has a process capacity of 21,2 million cubic meters of gas and 350,000 barrels of oil per day. A tectonostratigraphic framework for the statfjord field. Make sure you have an adult helping you since youll be using the stove. The course provides students with 1 an introduction to the geologic history of western north america, with particular emphasis on our field camp location and 2 an introduction to both digital and traditional techniques of geological field study. The main oilproducing reservoirs of the field are sandstones of the middle jurassic brent group and the lower jurassicupper triassic statfjord formation. A tectonostratigraphic framework for the statfjord field, northern north sea article pdf available in petroleum geoscience 53. Pdf a tectonostratigraphic framework for the statfjord. The brent field, block 21129, uk north sea geological.
The field has been developed with an unmanned wellhead facility, which is remotely controlled from. Experienced geologists will find useful reminders, new procedures, and special techniques, while less experienced engineering geologists and those from other disciplines can use the manual to expand their. Detailed well correlations are difficult because of the heterolithic nature of the reservoir. The field, which is 25 km long by 7 km wide, was discovered in 1979 and its development is known to be one of the significant milestones in emergence of norways independent oil and gas industry. The statfjord field, the largest oil field in the northern north sea, straddles the norwayuk boundary and is located on the southwestern part of the tampen spur within the east shetland basin. The role of fault interaction and linkage in controlling. Dunlin group sequence stratigraphy in the northern north sea. Norwegian boundary of the north sea at a water depth of 145 m, discovered in 1974 by mobil and since 1987 operated by statoil. Theaustralasianinstituteofminingandmetallurgy groundfloor. Nov 01, 2010 read geomechanical integrity of sealing faults during depressurisation of the statfjord field, journal of structural geology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
The brent field was the first discovery in the northern part of the north sea, and is one of the largest hydrocarbon accumulations in the united kingdom licence area. The naming of the files is tricky purely numeric, so keep track of which is the roads and which is the elevation data. The gullfaks oil field is located in the norwegian sector of the north sea, in block 3410, approximately 175 km northwest of bergen, see figure 1. Heavy mineral data provide an independent basis for subdivision and correlation of the statfjord nansen reservoir sequence in the brent field, uk north sea. Our observations from the snorre field support the interpretations of a braided stream origin for the statfjord formation on the tampen spur. The reservoirs dip to the west, and the field is bounded on the east by a boundary fault system. Evolution and geometries of gravitational collapse structures. Most geologists specialize in at least two fields and must. Peak production from the field was also achieved in the same month.
Minerals hardness 1gypsum, 2halite mineral 1 is harder or softer than a penny. Evolution and geometries of gravitational collapse structures with examples from the statfjord field, northern north sea. Geological surveying geology is composed of many subdisciplines table 1, each with its own specialist techniques and field rationale. Tommeliten gamma was discovered in 1978, and the plan for development and operation pdo was approved in 1986. Pdf structural framework of the statfjord formation. Norwegian boundary of the north sea at a water depth of 145 m, discovered in 1974 by mobil and since 1987 operated by statoil it is a transmedian field crossing the norwegian and uk north sea boundary with approximately 15% being in the uk continental shelf waters. Facies analysis of the statfjord formation rhaetian sinemurian in the tampen spur, horda platform and utsira high areas of the north sea viking graben, shows that alluvial sediments on the utsira high are finer grained and contain a higher proportion of nonpedogenic, subaqueously deposited sediments than timeequivalent deposits located further north. Gullfaks was discovered in 1978, and the plan for development and operation pdo for gullfaks phase i was approved in 1981. Field geologists thus attempt to describe and explain surface features, underground structures, and their interrelationships. The oilfield produced a record 850,204 barrels of oil on a single day. Samariumneodymium isotope stratigraphy of the lunde and. In addition, oil from eldfisk canbypass directly to the pipeline. Facies and sequence stratigraphic implications of the.
Based on detailed analyses of seismic and well data, the statfjord field, northern north sea, can be separated into a relatively undeformed main field area and an east flank heavily deformed by rotational block slides. The lunde formation has smnd provenance ages mainly in the range 1500 to 1700 ma, which is not diagnostic of a specific. Field geologists manual fifth edition monograph9 auslftlft thg mineralsinstitute publishedby. Making rock candy rock candy is actually sugar crystals, so you can eat your experiment when youre done. The weather permitting, several weekend field exercises provide practical experience in preparation for field geology ii 12. Gautier abstract the north sea graben of northwestern europe, world energy project province 4025, is entirely offshore within the territorial waters of denmark, germany, the netherlands, norway, and the united kingdom. The statfjord oil field is a large oil and gas field covering 580 km 2 in the u. A critical aspect of geology within this local basin is the distribution of. Those engaged in field geology investigate rocks and rock materials in their natural environment. Detailed sedimentological logging of core, and interpretation of wireline logs from the brent oil field, northern north sea, have allowed for the identification of sedimentary facies and environments of the upper triassiclower jurassic statfjord formation.
Suttner, department of geological sciences, indiana university. Statfjord field a timeline offshore technology oil and. The statfjord field, the largest oil field in the northern north sea, straddles. Late life field material balance analysis statfjord fm.
Kimmeridgian shales total petroleum system of the north sea. The field lies entirely within uk licence block 21129 at. Structural geology of the gullfaks field, northern north sea. In 1962 he published manual of field geology, which soon became a classic. Tilted jurassic fault blocks form the primary hydrocarbon trap at statfjord as throughout the east shetland basin. Statfjord was discovered in 1974, and the plan for development and operation pdo was approved in 1976. A simulation model for the statfjord field was built to assist with the reservoir optimization and management. The subdivision of the statfjord formation into lower and upper members is informally applied in the snorre field. Statfjord field is a structuralstratigraphic trap formed by westward tilting and erosion of a major fault block. The field has been developed using three large concrete platforms.
The statfjord field, blocks 339, 3312 norwegian sector, blocks 211. The engineering geology field manual, in conjunction with the engineering geology office manual, forms the basis for the mutually beneficial exchange of ideas by reclamation geologists. Viking grabens, with names and locations of oil and gas fields. Evolution and geometries of gravitational collapse. Structural geology by haakon fossen cambridge core.
Cambridge core structural geology, tectonics and geodynamics structural geology by haakon fossen. The gullfaks area with neighbouring fields in the tampen region. It is undoubtedly true that the production forecasting plays a. The ekofisk field is a central graben, northsouth trending anticline 49 km 2 19 sq mi in area, with 244 m 801 ft of vertical closure and a hydrocarbon column 305 m 1,001 ft long, formed by permian zechstein salt movement in the form of salt pillows. Statfjord straddles the uknorway median line, and has been unitised between the countries. Pdf a tectonostratigraphic framework for the statfjord field. Statoil became statfjord fields new operator in january 1987. Because of its continental fluvial depositional environment, this sequence lacks a welldefined biostratigraphicallybased correlation framework. The giant statfjord oil and gas field is located in the tampen area, immediately to the north of the uk brent field. Statfjord, the largest field in western europe in terms of recoverable oil, is located in the. Introduction to geological mapping lecture 1 3 field geology when rocks and rock materials are investigated in their natural environment and in their natural relations to one another, the study is called field geology.
Embla is a field in the southern part of the norwegian sector in the north sea, just south of the eldfisk field. Independent problemsolving is the foundation of the selfconfidence one derives from studying geology in the field. Gravitational failure is observed along the east flank of the statfjord field. The results illustrate distinctly different source areas for the upper triassic upper member of the lunde formation and for the lower jurassic statfjord formation. Lateral variation in magnetic susceptibility and remanence give rise to spatial variations in the magnetic field it is expressed in so called magnetic anomalies, i. Read geomechanical integrity of sealing faults during depressurisation of the statfjord field, journal of structural geology on deepdyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.