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Shearwater Field

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Series: Geological Society, London, Special Publications
Published: 01 January 2018
DOI: 10.1144/PGC8.36
EISBN: 9781786203151
... for the Shearwater Field. ( a ) Inset schematic showing the localized open fracture network, which is considered to have developed within the Hod Formation in response to reservoir compaction and overburden extension resulting in an increase in permeability. TVDSS, true vertical depth subsea. Fig. 1. Map...
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Series: Society of Exploration Geophysicists Distinguished Instructor Series
Published: 01 January 2013
DOI: 10.1190/1.9781560803126.appendixC
EISBN: 9781560803126
...) Shearwater field in the U.K. Central North Sea. Geomechanical modeling and conversion of model results to synthetic seismic time shifts allow quantitative comparison of models with real 4D seismic time shifts. Drilling in and around heavily depleted reservoirs is very challenging, and matching...
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Journal Article
Journal: The Leading Edge
Published: 01 May 2007
The Leading Edge (2007) 26 (5): 636-642.
...Rob Staples; Joel Ita; Rhian Burrell; Rebecca Nash Abstract Dedicated 4D seismic data have been used to investigate horizontal and vertical compartmentalization in the high pressure, high temperature (HPHT) Shearwater Field in the U.K. Central North Sea. Geomechanical modeling and conversion...
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Series: Geological Society, London, Petroleum Geology Conference series
Published: 01 January 2005
DOI: 10.1144/0060663
EISBN: 9781862394124
... Abstract Development of the Shearwater Field, a deep gas-condensate accumulation in the HPHT region of the UKCS’ began in 1997 with the initiation of development drilling and construction of topside facilities. It formed part of the major development of the Central North Sea HPHT gas play...
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Journal Article
Journal: The Leading Edge
Published: 01 September 2019
The Leading Edge (2019) 38 (9): 692-696.
... of the source signature in the far field over the full data bandwidth. The well-established approach to this problem is to derive signatures from hydrophone data recorded in the near field of the source array. We perform a least-squares inversion of the near-field data, using a representation of the physics...
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Series: Geological Society, London, Special Publications
Published: 01 January 2015
DOI: 10.1144/SP403.15
EISBN: 9781862396791
... through the Shearwater Elgin Area Line and condensate through the Forties Pipeline System to Kinneil. Field performance to date has exceeded the FDP P50 both in terms of daily rate and cumulative production. Early production rates peaked at 100 mmscf/day of gas and 6000 stb/day of condensate and, to end...
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Series: GCSSEPM
Published: 01 December 2004
DOI: 10.5724/gcs.04.24.0315
EISBN: 978-0-9836096-6-7
... this is a very crude technique, and the results are likely to be influenced by factors such as sub-seismic-scale faulting and depth measurement inaccuracies, the results obtained are startling. Using wells 22/30-3, 22/30-4, and 22/30-11 from the Shearwater Field for the area directly above the salt diapir...
Journal Article
Journal: The Leading Edge
Published: 01 September 2019
The Leading Edge (2019) 38 (9): 670.
..., the processing requirements drive the acquisition. Practical constraints on seismic acquisition also drive processing technology, in particular, interpolation of traces that cannot be obtained in the field by estimating these missing traces. This interpolation reduces the artifacts generated by missing traces...
Image
( a ) Seismic line from a 3D dataset shot over the Elgin and <b>Shearwater</b> Fie...
Published: 01 December 2001
Fig. 9 ( a ) Seismic line from a 3D dataset shot over the Elgin and Shearwater Fields. ( b ) Faults have an overall NW–SE strike, but are commonly also arcuate in planform. Fault block rotation occurred during the Kimmeridgian and Volgian (marked X). Some thickening of the Bathonian section
Image
Wireline logs through the Fulmar sandstone gas reservoir at <b>Shearwater</b> fiel...
Published: 01 August 2010
Figure 20 Wireline logs through the Fulmar sandstone gas reservoir at Shearwater field (United Kingdom central North Sea, 22/30b) reveal a decrease in porosity with depth. Upper shoreface sands dominate the upper Fulmar, whereas the lower Fulmar is composed of lower shoreface, bioturbated sands
Series: Geological Society, London, Petroleum Geology Conference series
Published: 01 January 2005
DOI: 10.1144/0061301
EISBN: 9781862394124
... separates the Pentland and Skagerrak formations in both fields is required to shield the underlying Skagerrak accumulation from this later charge. The distinct geochemical signature seen in the Shearwater Pentland Formation is attributed to localized sourcing of hydrocarbons from coals within the formation...
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Image
(a) 4D stress across Elgin, (b) 4D stress across Franklin and <b>Shearwater</b>. T...
Published: 01 May 2007
Figure 5. (a) 4D stress across Elgin, (b) 4D stress across Franklin and Shearwater. The stress changes in Franklin are consistent with the similarly depleted Elgin Field.
Series: Geological Society, London, Petroleum Geology Conference series
Published: 01 January 2005
DOI: 10.1144/0060253
EISBN: 9781862394124
... reservoirs occurring at depths in excess of 15 000 feet. This exploration phase resulted in the discovery of significant reserves at the Elgin, Franklin, Shearwater, Jade and ETAP fields. Throughout the exploration history of the CNS, the accurate prediction of deep reservoir distribution and quality and top...
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Series: Geological Society, London, Memoirs
Published: 01 January 2003
DOI: 10.1144/GSL.MEM.2003.020.01.42
EISBN: 9781862393950
... and Franklin Fields and the Shell operated Shearwater Field. The Machar Field, which produces from overlying Chalk and Paleocene sandstone on the flank of the Machar salt dome, is located immediately to the NE. Erskine and Machar field boundaries partially overlap and are separated vertically at —12 000 ft sub...
Journal Article
Journal: Geophysics
Published: 20 November 2008
Geophysics (2008) 73 (6): WA113-WA122.
... Lake heavy oil field, Alberta, Canada : AAPG Bulletin , 85 , 781 – 793 . Staples R. Ita J. Burrell R. Nash R. , 2007 , Monitoring pressure depletion and improving geomechanical models of the Shearwater field using 4D seismic : The Leading Edge , 24 , 636 – 642 . Tura...
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Journal Article
Journal: Geophysics
Published: 03 November 2010
Geophysics (2010) 75 (6): O39-O55.
.... Inequalities constrain the inversion, under the assumption that the fluid production only results in pore volume decreases within the reservoir. The formulation has been applied to satellite-based estimates of deformation in the material overlying a thin gas production zone at the Krechba field in Algeria...
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Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP458.7
EISBN: 9781786203397
... to γ v = 0.2 for anticlinal or highly inclined reservoirs ( Molenaar et al. 2004 ). Molenaar et al. (2004) predict that the vertical total stress changes accompanying the depletion of the Shearwater field, in the high pressure–high temperature region of the central North Sea, are dependent...
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Series: Geological Society, London, Memoirs
Published: 01 January 2003
DOI: 10.1144/GSL.MEM.2003.020.01.47
EISBN: 9781862393950
... of the Shearwater Salt Formation and anhydrites and dolomites of the Turbot Anhydrite Formation. These are succeeded by Triassic continental mudstones and siltstones of the Smith Bank Formation (Fig. 3 ). These are thin or absent over the field crest and on the eastern flanks, but much thicker to the west...
Image
Depth-structure map showing drainage polygons for the Elgin, Franklin, and ...
Published: 01 November 2004
Figure 18 Depth-structure map showing drainage polygons for the Elgin, Franklin, and Shearwater fields. Depths of 5600 m (18,500 ft) correspond to approximately 200°C. Note that relative to Shearwater, the traps at Franklin and Elgin are charged by a higher percentage of hydrocarbons from highly
Series: Geological Society, London, Petroleum Geology Conference series
Published: 01 January 2005
DOI: 10.1144/0061435
EISBN: 9781862394124
.... This section covers West Franklin, Glenelg and Elgin and continues to the neighbouring Shearwater Field, which is operated by Shell Expro. The main reservoirs are the Fulmar and Pentland Jurassic sands (highlighted in blue shades) which were deposited over a series of Triassic ‘pods’ (highlighted in pink...
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