... quantification of the relative proportions of kaolinite and dickite, validated by X-ray diffraction (XRD) results, in order to link mineral and structural features during the mineralogical changes. A group of kaolinite and dickite samples was investigated: 13 samples from the Frøy and Rind oil fields (North Sea...

...Javier Cuadros; Raquel Vega; Alejandro Toscano; Xabier Arroyo Abstract The mechanism of kaolinite transformation into dickite has been investigating using 13 samples from the Frøy and Rind oil fields (Broad Fourteens basin, North Sea), 3 kaolinite specimens with different crystal order (KGa-2...

... from the Norwegian North Sea: Ula, Hild and Frøy fields by Karlsen & Larter 1991 ; Karlsen et al . 1993 ; Skålnes 1993 ; Skålnes et al . 1993 ; Bharati 1997 ; Ashan et al . 1998 ; Bhullar et al . 1998 , 1999 ). To an oil company, proving the presence of a commercial petroleum system...

... sample of a K-feldspar bearing arkosic sandstone, collected from the Brent Group sediments of the Froy hydrocarbon reservoir, Norwegian continental shelf, North Sea, was studied. Two types of vermiform aggregates were analyzed: 1) porous aggregates of fine lamellar crystals or intercalations of blocky...

... + . Cassagnabère (1998) and Cassagnabère et al. (1999) investigated the influence of W/R on the kaolinite-to-dickite reaction rate in the Frøy and Rind oil fields (Brent formation, North Sea). In rock types varying from shales to medium-grained sandstones, kaolin exhibits an extreme textural and crystal...

..., such as the Frigg, Heimdal, and Frøy Fields. In the 1990s, exploration focused on the subtle structural closures with middle Jurassic reservoirs, resulting in the more recent Skirne, Byggve, and Atla discoveries ( Norwegian Petroleum Directorate 2014b ). The key wells penetrating the Jurassic section are shown...

... the approximate limit of data point distributions. The solid and dashed lines in panel D are the best fits for the Frøy field and Rind discovery, respectively. Data for the Frøy field and Rind discovery are from Bhullar et al. (1999b) (published with permission from Elsevier). Note the complex relationship...

..., realizing the approximation involved, equated the vertical displacement S, to zero. Using the exact boundary conditions will present no serious difficulty in this analysis. RADIATION FROi~: A HORIZONTAL STRESS A P P LIED ON A HALF SPACE 29 Substituting (2) into (7) and (8) suggests that if 2o~A + (k ~ - 2~2...

... Abstract J. A. Chalmers, R. C. Whittaker, N. Skaarup & T. C. R. Pulvertaft write: Geoffroy et al. 1998 have published an account of field measurements of the structure of the Palaeogene lavas exposed in western Disko, central West Greenland. They show that the lavas generally dip westwards...

..., equation (6) appears to be adequate for a first rough approximation. ENERGY RELEASED IN THE BENHAM AFTERSttOCKS 1297 SEISMIC ENERGY FROI~i BENHAM AFTERSHOCKS The total energy of the BENIIAM aftershocks can be approximated by ML=4.4 (S) E = ~ N(M~) × E(M M L=I.3 Taking N(ML) from the data given in Figure 1...

... of coupled versus decoupled explosions. Near-field velocity and acceleration data from the SALMON and STERLING explosions in salt were analyzed for strain and frequency-dependent attenuation. Attenuation, parameterized as 1/ Q , was estimated for various source-receiver distance ranges and frequency...

... characteristics of the Froy field and the Rind discovery, Norwegian North Sea : Marine and Petroleum Geology , v. 16 , p. 633 – 651 , doi: 10.1016/S0264-8172(99)00025-2 . Nedkvitne , T. , D. A. Karlsen , K. Bjorlykke , and S. Larter , 1993 , Relationship between reservoir diagenetic...

... of the episodes of uplift ( Ohm et al. 2008 ), and the same phases of uplift have also resulted in a significant redistribution and mixing of oil and gas on the Barents Shelf ( Lerch et al. 2016 ). Fig. 1. Geographical locations of the fields and wells, and the locations from which the oils and core...

... with the release of strain energy and with the earthquake motions at the focus. If this is the case, then the replacement of the complex system of strain fields and the diffracting surface of the fault by the equivalent body forces or couples acting in the absence of the fault plane is at best a hypothetical model...

... of Sedimentary Petrology , v. 58 , p. 506 – 511 . Bjorkum , P.A. , Mjos , R. , Walderhaug , O. and Hurst , A. 1990 . The role of the late Cimmerian unconformity in controlling the distribution of kaolinite in the Gullfakes Field northern North Sea . Journal of Sedimentology , v. 37...

.... Chemical analyses of the chlorites were performed on petrographic thin sections using a Kevex Sigma energy-dispersive X-ray spectrometer (EDS: Kevex, Foster City, California, USA) attached to a Hitachi S-4500 scanning electron microscope (SEM: Hitachi, Tokyo, Japan) with a cold field-emission gun operated...

.... These variables include geological parameters such as depositional environment, which has long been considered to be a key factor influencing the production characteristics of fields. However, quantifying the importance of any single factor, such as depositional environment, is complicated by the impact...

...T. R. Klett; Donald L. Gautier Abstract The assessment of petroleum resources of the North Sea, as well as other areas of the world, requires a viable means to forecast the amount of growth of reserve estimates (reserve growth) for discovered fields and to predict the potential fully developed...

... in the buried series are similar in the two areas, the structural evolution and the geothermal gradient seem to be the main factors responsible for the different evolution of the primary clay assemblages at the two sites. The temperature at which smectite disappears is in accordance with former field...