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Marker fossils

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Proceedings Papers

Paper presented at the 5th World Petroleum Congress, May 30–June 5, 1959
Paper Number: WPC-8059
... terms is included in the chapter on the systematics of the Discoasteridae. Only one specimen of each formspecies is illustrated. The possibilities of the ilse of the discoasters as marker-fossils are discussed. It can be stated that discoasters can be used in establishing geologic boundaries...
Journal Articles
J Pet Technol 69 (03): 35–40.
Paper Number: SPE-0317-0035-JPT
Published: 01 March 2017
... alternatives such as radioactive markers, which are visible only within a couple feet of the wellbore. Think-Tank Founder Touts Benefits of Fossil Fuels Trent Jacobs, JPT Digital Editor Higher life expectancy, plentiful food, and soaring gross domestic product are among the benefits that much of the world’s...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 1986
Paper Number: SPE-15603-MS
... if properly analyzed and interpreted. Stratigraphic units composed of unusual combinations of lithologies produce marker horizons, or distinctive patterns of the petrophysical properties measured by the logs. Some petrophysical properties measured by the logs. Some markers can be traced over extensive areas...
Proceedings Papers

Paper presented at the 22nd World Petroleum Congress, July 9–13, 2017
Paper Number: WPC-22-1113
... technologies. A full-chain CCS-project is currently under way in Norway with storage solutions proposed by Statoil. This project may represent a re-assessment of business models for CCS and be a marker for CCS as a low carbon tool for fossil fuels. All in all, main technologies relevant for natural gas...
Journal Articles
J Pet Technol 46 (10): 848–852.
Paper Number: SPE-29242-PA
Published: 01 October 1994
... in local "high points" of the well, masking the source of the influx. Some operators have had significant success using paleontology data to steer horizontal wells in layered reservoirs. This requires a depositional environment with distinct fossil markers in the intervals above and below the target...
Journal Articles
J Pet Technol 71 (05): 14.
Paper Number: SPE-0519-0014-JPT
Published: 01 May 2019
.... Buyers would like more transparency to reflect regional supply/demand dynamics. A proposed gas cartel formed by some of the world’s largest gas producers—kind of a gas OPEC—has never gotten off the ground. An oil pricing service has introduced the Japan Korean Marker as a possibility, to be used...
Proceedings Papers

Paper presented at the Offshore South East Asia Show, February 9–12, 1982
Paper Number: SPE-10461-MS
... shallow marine facies (Rama "B", "C" and "E" platform areas), and the Upper Batu Raja reefal facies (Rama "B", "C", "D", and "E" platform areas). The Upper Batu Raja and Lower Batu Raja formations are separated by the Claystone Marker which provides good log-reference and well-to-well correlation...
Proceedings Papers

Paper presented at the 1st World Petroleum Congress, July 18–24, 1933
Paper Number: WPC-1077
... as marker horizons are expected. Such examination can then be followed by detailed' search for fossils, micro-organisms, and heavy minerals. In examining cores for structure account must be taken of the deviation of the hole, and care is necessary in interpreting the evidence given by false-bedded...
Tula <span class="search-highlight">marker</span> in well A core. The lower part consists of toe of the slope lit...
Published: 08 November 2010
Figure 8 Tula marker in well A core. The lower part consists of toe of the slope lithoclast/skeletal rudstone with dark alternations of basinal, black argillaceous and silicified mudstone, becoming predominant in the intermediate section. The upper part consists of crinoidal rudstone with boundsto... More
Proceedings Papers

Publisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 28–September 1, 2022
Paper Number: SEG-2022-3745992
... correlation was based on extensive well-log data: the top of Buda Formation and Regional Dense Marker Bed (RDMB), a comparably hot gamma signal ubiquitously present in subsurface south Texas, were used as regional stratigraphic surfaces to guide correlation. A cross-section correlating sequences from...
Journal Articles
J Can Pet Technol 3 (03): 136–140.
Paper Number: PETSOC-64-03-08
Published: 01 September 1964
... on the sonic logs and can thus betraced areally. When the depths of these marker beds are fed into an electronic computer along with digitized sonic log data it is possible to compute many of the reservoir parameters for subdivisions of the Boundary member. The engineer canthus develop an extremely detailed...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, August 1–3, 2016
Paper Number: URTEC-2461374-MS
... to Accurate Time Correlation Rather than just correlating well log and tops of fossil marker species a methodology using High Resolution Biostratigraphy and accurate time-stratigraphic age datable Maximum Flooding Surfaces were used to correlate the formations analyzed in this paper (Figure 15). Figure 15...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 9–12, 2020
Paper Number: SPE-203227-MS
... focusing on the Upper Cretaceous species. Each JPEG image contains one or more nannofossils ( Fig. 1 ). 21 zonal markers from 36 index fossils in Upper Cretaceous section by Thierstein (1976) and Sissingh (1977) are identified in samples. These markers are divided into four Tiers according...
Proceedings Papers

Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 4–6, 2015
Paper Number: SPE-178359-MS
... evolving or short-lived, yet wide-ranging fossil taxa make the best biostratigraphic markers for correlation. If a given taxa is both wide-ranging and evolutionarily short-lived, and if it is robust enough to be preserved in the fossil record, then the taxa is often referred to as an index fossil. Most...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-055
... in Fig. 2, where the blue rectangles represent a camera. In the final stage the photos are aligned using the markers placed on the rock. By means of these common references, every position is translated and rotated for subsequently being merged into a single model. Then, the dense cloud is built and from...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2109
...): 70-75. 6. Encheng Wu, Tie Yan. The fossil layers in Nen2 marker bed of Daqing oilfield cause casing damage mechanism analysis , Journal of Northeast Petroleum University, 2021. American Rock Mechanics Association ...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-0295
..., divides the Mannville group into a lower and upper unit (after Farshori, 1983; Glaister, 1959). Lower Glauconitic IVCS of the Upper Mannville group truncate regional markers in the Lower Mannville Ostracod formation and regional Glauconitic facies. The Glauconitic IVCS extend from South East Alberta...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1993
Paper Number: OTC-7124-MS
... marker fossils are truncated at this surface, well below their full range: Globo rotalia, ocenlca Ioborotalia multicameraa Globiaerina =, ~iscoaster surcutu% Discoaster asymmetri- QYS,Discoaster, Di$cQaster ~entaradiatus and tamalis (Fig 6). The gamma ray curve (Fig. 2) shows that the sequence boundaty...
Proceedings Papers

Paper presented at the ARMA/DGS/SEG International Geomechanics Symposium, November 1–4, 2021
Paper Number: ARMA-IGS-21-103
... porosity as a function of aspect ratio represented with different markers: 0.01 (triangle), 0.05 (square), 0.2 (circle). The color codes and line types represent the different fluids filling the pores (Blue solid curves represents water, green square dot curves represent oil, and red long dash curves...
Journal Articles
J Pet Technol 58 (11): 24–26.
Paper Number: SPE-1106-0024-JPT
Published: 01 November 2006
... have substantial potential as markers for imaging. By chemical modification, the nanoparticles pref- erentially segregate into different fluid regions or to the pores, allowing for improved sizing and characterization of the reser- voir and the efficacy of sweep methods employed to enhance the recovery...

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