Understanding Thin Beds Using 3D Seismic Analysis Workflows

2011 ◽  
pp. 322-341 ◽  
Author(s):  
Alison Henning ◽  
Gaynor Paton
Keyword(s):  
Seismic Analysis ◽  
3D Seismic

3D seismic analysis of an Upper Palaeozoic carbonate succession of the Eastern Finnmark Platform area, Norwegian Barents Sea

2007 ◽  
Vol 197 (1-2) ◽  
pp. 79-98 ◽  
Author(s):  
Arnout Colpaert ◽  
Neil Pickard ◽  
Jürgen Mienert ◽  
Leif Bjørnar Henriksen ◽  
Bjarne Rafaelsen ◽  
...  
Keyword(s):  
Barents Sea ◽  
Seismic Analysis ◽  
3D Seismic

scholarly journals 3D structure and formation of hydrothermal vent complexes at the Paleocene-Eocene transition, the Møre Basin, mid-Norwegian margin

2017 ◽  
Vol 5 (3) ◽  
pp. SK65-SK81 ◽  
Author(s):  
Sigurd Kjoberg ◽  
Tobias Schmiedel ◽  
Sverre Planke ◽  
Henrik H. Svensen ◽  
John M. Millett ◽  
...  
Keyword(s):  
Hydrothermal Vent ◽  
Seismic Analysis ◽  
3D Structure ◽  
Morphological Characteristics ◽  
3D Seismic ◽  
Petroleum Systems ◽  
Time Period ◽  
Thermal Maximum ◽  
Norwegian Margin ◽  
Well Data

The mid-Norwegian margin is regarded as an example of a volcanic-rifted margin formed prior to and during the Paleogene breakup of the northeast Atlantic. The area is characterized by the presence of voluminous basaltic complexes such as extrusive lava and lava delta sequences, intrusive sills and dikes, and hydrothermal vent complexes. We have developed a detailed 3D seismic analysis of fluid- and gas-induced hydrothermal vent complexes in a [Formula: see text] area in the Møre Basin, offshore Norway. We find that formation of hydrothermal vent complexes is accommodated by deformation of the host rock when sills are emplaced. Fluids are generated by metamorphic reactions and pore-fluid expansion around sills and are focused around sill tips due to buoyancy. Hydrothermal vent complexes are associated with doming of the overlying strata, leading to the formation of draping mounds above the vent contemporary surface. The morphological characteristics of the upper part and the underlying feeder structure (conduit zone) are imaged and studied in 3D seismic data. Well data indicate that the complexes formed during the early Eocene, linking their formation to the time of the Paleocene-Eocene thermal maximum at c. 56 Ma. The well data further suggest that the hydrothermal vent complexes were active for a considerable time period, corresponding to a c. 100 m thick transition zone unit with primary Apectodinium augustum and redeposited very mature Cretaceous and Jurassic palynomorphs. The newly derived understanding of age, structure, and formation of hydrothermal vent complexes in the Møre Basin contributes to the general understanding of the igneous plumbing system in volcanic basins and their implications for the paleoclimate and petroleum systems.

scholarly journals Unravelling key controls on the rift climax to post-rift fill of marine rift basins: insights from 3D seismic analysis of the Lower Cretaceous of the Hammerfest Basin, SW Barents Sea

2017 ◽  
Vol 30 (4) ◽  
pp. 587-612 ◽  
Author(s):  
Dora Marín ◽  
Alejandro Escalona ◽  
Sten-Andreas Grundvåg ◽  
Snorre Olaussen ◽  
Sara Sandvik ◽  
...  
Keyword(s):  
Lower Cretaceous ◽  
Barents Sea ◽  
Seismic Analysis ◽  
3D Seismic ◽  
Rift Basins

scholarly journals Structural Geometry Analysis of Khasib Formation in West Qurna I and II Supergiant Oilfields, Southern Iraq

2021 ◽  
Vol 54 (1E) ◽  
pp. 54-66
Author(s):  
Rafea Ahmed Abdullah ◽  
Muwafaq Al-Shahwan
Keyword(s):  
Cross Sections ◽  
Seismic Data ◽  
Seismic Analysis ◽  
Seismic Profile ◽  
Well Logs ◽  
3D Seismic ◽  
Structural Geometry ◽  
Zero Offset ◽  
Geometry Analysis ◽  
Southern Iraq

The West Qurna I and II supergiant oilfields are one of the largest oil-producing fields, southern Iraq. They are parts of a supergiant anticline that extends more than 120 km. This anticline is oriented north-northwest and it's included the South Rumaila, North Rumaila, West Qurna I, and West Qurna II. The aim of this study is to integrate all available data to provide a better understanding of the subsurface structure for both West Qurna I and II. 3-D high-quality seismic data (in SEGY format) that executed for both oilfields independently were used as a key tool to supply perfect structural images. In addition to Zero-Offset Vertical Seismic Profile, set of well logs and well tops from 569 wells that distributed over the study area, 423 wells are located in West Qurna I, 146 wells situated in West Qurna II. OpenWorks, DecisionSpace G1 10ep and Seismic Analysis 10ep software of Halliburton were used to perform the 3D seismic interpretation and create structure maps (in-depth domain). While the cross-sections were done by Schlumberger software (Petrel 2018). Finally, the well tops were picked using Geolog 8.0. The study concludes that the structure of West Qurna I and II can be classified as an antiform, non-cylindrical, horizontal, gentle, brachy, asymmetrical anticline.

scholarly journals Interpretation of 3D Seismic Reflection Data to Reveal Stratigraphic Setting of the Reservoir of Mishrif Formation in Dujaila Oil Field, Southeast of Iraq

2021 ◽  
pp. 2250-2261
Author(s):  
Ahmed Muslim Khawaja ◽  
Jassim Muhammad Thabit
Keyword(s):  
Seismic Reflection ◽  
Seismic Analysis ◽  
Carbonate Platform ◽  
Low Frequency ◽  
Oil Field ◽  
3D Seismic ◽  
Seismic Reflection Data ◽  
Reflection Data ◽  
Carbonate Buildups ◽  
Depositional Models

     This research is an attempt to solve the ambiguity associated with the stratigraphic setting of the main reservoir (late Cretaceous) of Mishrif Formation in Dujaila oil field. This was achieved by studying a 3D seismic reflection post-stack data for an area of ​​602.62 Km2 in Maysan Governorate, southeast of Iraq. Seismic analysis of the true amplitude reflections, time maps, and 3D depositional models showed a sufficient seismic evidence that the Mishrif Formation produces oil from a stratigraphic trap of isolated reef carbonate buildups that were grown on the shelf edge of the carbonate platform, located in the area around the productive well Dujaila-1. The low-frequency attribute illustrated that it is restricted in the area around the productive well Dujaila-1, which confirmed the existence of reef porous carbonate buildups and hydrocarbon accumulation in this region. The pay zone of the reef mound trap extends for about 7 km from the well Dujaila-1 toward the southwest side and 4 km toward the well Dujaila-2, without reaching it, which is explaining why it was dry. Therefore, this area to the south of the productive well Dujaila-1 represents a good area for low-risk drilling. Consequently, the hydrocarbon system observed in the Dujaila oil field provides a new opportunity to explore and produce oil in Mishrif Formation in other areas on the flank of the productive structures and in flat areas situated on the belt of the carbonate platform edge.

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