Review of Greenland Avtivities 2001 - Geus

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Petroleum geological activities in West Greenland in 2001 Flemming G. Christiansen, Jørgen A. Bojesen-Koefoed, James A. Chalmers, Finn Dalhoff, Christian Marcussen,Tove Nielsen, Henrik Nøhr-Hansen and Martin Sønderholm Greenland petroleum geological activities at the Geological Survey of Denmark and Greenland (GEUS) during 2001 were focused mainly on the preparation of the 2002 licensing round offshore West Greenland. Promotion of the exploration opportunities in the licensing round area between 63° and 68°N has played an important role together with launching of new seismic and geological projects. Critical evaluation of the results from the Qulleq-1 well drilled in 2000 has continued in this context. The Statoil group relinquished the eastern subarea of the Fylla licence at the end of April 2000, making all the Qulleq-1 data available for promotion purposes (see Christiansen et al. 2001a). The entire remaining area was relinquished by the end of the year. However, as part of outstanding working commitments, the Statoil group acquired approximately 1000 km of new seismic data, mainly from the western part of the licence area. These data have proven to be of great interest for companies evaluating West Greenland (see below). The Phillips group relinquished the entire Sisimiut-West licence area by the end of the year, without entering the next phase of exploration which called for a firm commitment well. The seismic company TGS-NOPEC extended its activities from 1999 and 2000 with the acquisition of two regional non-exclusive surveys, GreenCan2001 and Green2001. The first is a regional joint-venture programme between TGS-NOPEC and the Bureau of Minerals and Petroleum (BMP), Government of Greenland; the second is a conventional speculative survey, mainly in the northern open-door area (see below). Several Survey projects relevant to petroleum exploration in West Greenland were finalised in 2001. A study of the Palaeogene succession, combining seismic sequence stratigraphy, sedimentological reinterpretation of petrophysical logs, new biostratigraphy and facies analysis in a sequence stratigraphic framework, is summarised in a paper by Dalhoff et al. (2002, this volume). A seismic study of the Palaeogene volcanic rocks from the region west of Disko is also summarised in a separate paper in this volume (Skaarup 2002). Furthermore, a study of potential geohazards in West Greenland, that included a systematic interpretation and mapping of the Neogene succession, was completed (see below). Two important petroleum geological projects were initiated at GEUS in 2001. One concerns biostratigraphic correlation of the offshore wells from West Greenland and the shelf offshore Labrador, Canada; the other is a regional correlation study of mid-Cretaceous source rocks and oils from West Greenland and North America (see below). The 2002 licensing round The 2002 licensing round offshore West Greenland covers the entire area between 63°N and 68°N and thus includes the former Fylla and Sisimiut-West licensing areas. A major effort promoting the petroleum exploration potential has been carried out by BMP in close co-operation with GEUS, the Greenland–Danish national oil company Nunaoil and the owners of major seismic surveys (principally TGS-NOPEC). Numerous presentations on the geology of West Greenland have been given during 2001 at petroleum-related meetings and conferences (Bojesen-Koefoed et al. 2001a; Chalmers & Oakey 2001; Chalmers et al. 2001a; Christiansen et al. 2001b; Dam et al. 2001; Middleton et al. 2001; Oakey & Chalmers 2001; Rasmussen & Sheldon 2001; Sønderholm et al. 2001). Presentations have also been given to a large number of companies both at their own offices in Europe, Canada and the United States and at the Survey’s headquarters in Copenhagen. All relevant information relating to petroleum exploration in West Greenland has been made available on the internet on a newly developed portal: GhexisOnline (www.geus.dk/ghexis). On this site, information on the West Greenland licensing round, geology (including prospectivity, source rocks and maturity, and play types), available data types (well data, seismic data, source rock data, cultural data, etc.), operational conditions, exploration history and relevant literature can be found, together with online versions of the GHEXIS Newsletter. 84 Geology of Greenland Survey Bulletin 191, 84–89 (2002) © GEUS, 2002
24 24 Canada 65° 60° 55° 70° Border with Canada ? Disko Nuussuaq Greenland ? Ikermiut FZ H-1 SB 65° Baffin Island ▲ ▲ K-1 LFB I-1 N-2 N-1 Q-1 Greenland SW2000 GreenCan2001 Green2001 Fylla2001-W Fylla licence 250 km N-18 G-37 O-71 Ungava FZ 60° ? 65° 60° Basement outcrop or shallow shelf 200 km Ordovician sediment Labrador outcrop Mesozoic basin Palaeogene basalts Possible oceanic/serpentinite crust 24 26 27 24 25 H-81 26 24 27 55° Transition zone 25 27 26 25 26 27 25 24 24 21 25 SFZ 21 Palaeogene oceanic crust Unknown crustal type Fault Transform fault 26 21 50° Extinct spreading centre 26 2 25 26GB01.07-058-MS K-1 Borehole 25 25 55 N 26 21 27 Relinquished licences 2002 licensing round area 60 N Fig. 1. Map of West Greenland showing main structural elements, sedimentary basins and position of seismic surveys mentioned in text. SB: Sisimiut Basin, LFB: Lady Franklin Basin, FZ: Fault Zone. Two offshore licences were relinquished in 2001: the Fylla licence (Statoil Group) to the south and the Sisimiut-West licence (Phillips Group) to the north. 85
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GEOLOGY OF GREENLAND SURVEY BULLETI
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Geology of Greenland Survey Bulleti
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Contents Numbers of articles corres
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■ ■ ■ ■ ■ ■ ■ ■ ■
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Canada Pituffik O 1 Thule Air Base
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Publications A complete list of geo
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Canada Greenland Greenland Inland I
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northern Nagssugtoqidian orogen (SN
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western to the north-eastern corner
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group consists of conjugate sets of
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y pure shear. Coincidence of the or
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The Precambrian supracrustal rocks
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68°25′ 52° 68°25′ BIF 0 3 km
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Fig. 4. Dolomitic marble in the sou
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Bugt (Fig. 1; Henderson 1969). The
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Keto, L. 1962: Aerial prospecting b
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Page 38 and 39: increases towards the south. We obs
Page 40 and 41: Kalsbeek, F. & Taylor, P.N. 1999: R
Page 42 and 43: Canada Nuussuaq 0 50 km PROTEROZOIC
Page 44 and 45: deposit. Descriptions of the differ
Page 46 and 47: Pegmatites The gneisses throughout
Page 48 and 49: tacts with quartzo-feldspathic coun
Page 50 and 51: Geological correlation of magnetic
Page 52 and 53: Fig. 2. The hand-held magnetic susc
Page 54 and 55: Susceptibility distribution (%) Sus
Page 56 and 57: have a reducing effect, which hinde
Page 58 and 59: ancy between the susceptibility val
Page 60 and 61: 67° Sisimiut • 53° 52° 51° 50
Page 62 and 63: Table 1. Range of Nb concentrations
Page 64 and 65: chemical composition - may indicate
Page 66 and 67: Concentration/C1 chondrite 100.00 1
Page 68 and 69: Menzies, M.A. & Hawkesworth, C.J. (
Page 70 and 71: 72°30´ Aeromag 2001 50 km Upernav
Page 72 and 73: 56° 54° 52° 72° 72° nT 71°30
Page 74 and 75: Conclusions The aeromagnetic survey
Page 76 and 77: 53° 51° Inland Ice Greenland 72°
Page 78 and 79: On the south coast of Nuussuaq, wes
Page 80 and 81: Fig. 5. Blocks and boulders in the
Page 82 and 83: 2000 SW NE 1500 Surface trace 1985
Page 84 and 85: 1979). Along other sections of the
Page 88 and 89: Seismic acquisition during summer 2
Page 90 and 91: Other petroleum geological work Alt
Page 92 and 93: A multidisciplinary study of the Pa
Page 94 and 95: Seismic interpretation The grid of
Page 96 and 97: Middle Eocene Lower Eocene Upper Pa
Page 98 and 99: Chalmers, J.A., Dahl, J.T., Bate, K
Page 100 and 101: 95-06 ▲ ▲ 58° 95-12 95-10 56°
Page 102 and 103: 70° 71° 60° 2000 2000 2400 400 1
Page 104 and 105: Storey, M., Duncan, R.A., Pedersen,
Page 106 and 107: 24° 100 km 30° 27° 21 ° Jameson
Page 108 and 109: Oligocene Krabbedalen Fm Eocene Bop
Page 110 and 111: grading. Bivalve shell material is
Page 112 and 113: References Birkenmajer, K. 1972: Re
Page 114 and 115: B A 72° Palaeogene basalts Gl 50 k
Page 116 and 117: a b c d e f g h 20 µm i j k l Fig.
Page 118 and 119: offshore South-East Greenland, onsh
Page 120 and 121: ▲ Albert Heim Bjerge Wordie Gletc
Page 122 and 123: T D A CW NS placed the lowermost c.
Page 124 and 125: is abundant and highly diverse, and
Page 126 and 127: The Heimbjerge Formation comprises
Page 128 and 129: Late Permian carbonate concretions
Page 130 and 131: m 25 20 15 B3 L2 B2 Fig. 3. Simplif
Page 132 and 133: (2001), who pointed out the restric
Page 134 and 135: Piasecki, S. 1984: Preliminary paly
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66° 68° • • • • • • 7
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absent at Tikeraussaq where a postu
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72° 70° 68° 66° Sample locality
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Table 2. Summary of selected elemen
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Concluding remarks Observations dur
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Lake-catchment interactions with cl
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lakes. As in earlier reports (e.g.
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Discussion Global climate models pr
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Glaciological investigations on ice
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Fig. 2. The new one-mast design of
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A B N 20 km 1993 1995 Fig. 5. Satel
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Krabill, W., Frederick, E., Manizad
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2001/47: Calibration of stream sedi
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Hanghøj, K., Kelemen, P., Bernstei
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Danmarks og Grønlands Geologiske U
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GEOLOGY OF GREENLAND SURVEY BULLETI
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