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Mapping faults using a grid of lines
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Reservoir Simulation Conference, October 26, 2021
Paper Number: SPE-203902-MS
... in G b sim to their new locations using a map that has the same structure as M R2D and M D2R . Details on how to generate this map will be discussed in the section Fault Juxtaposition Adjustment on the Simulation Grid. The workflow for gridding and fault juxtaposition modification can...
Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5812648
... gridding method, and it forms a comprehensive structural mapping workflow. Using this method can avoid structural distortion problems caused by sparse seismic observations and ensure those contour lines which are in or nearby fault zones are more reliable than conventional structure mapping techniques...
Journal: SPE Formation Evaluation
SPE Form Eval 8 (04): 253–257.
Paper Number: SPE-20943-PA
Published: 01 December 1993
... azimuth map seed line control grid azimuth display spe formation evaluation template acquisition azimuth artifact interpretation calculation Use of Dip and Azimuth Horizon Attributes in 3D Seismic Interpretation Jaap c. Mondt, * Koninklijke/Shell E&P Laboratorium Summary. Through...
Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-1711
... in Figure 6. The lines are used as fault boundaries, so the surface generated only utilises the data within its own fault block. The result is a well projected and tightly constrained surface that closely honours the form of the interpretation from the interpreter. The technique allows seed grids...
Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-1781
.... In our method, the reservoir grid can be snapped to the geologic model without approximation of the fault surface or fault displacement. While the reservoir grid can be defined using either straight or curved grid lines, most of the commercially available simulator preprocessors can only support straight...
Paper presented at the SPE Annual Technical Conference and Exhibition, October 27–29, 2014
Paper Number: SPE-170761-MS
... is provided in Figure 2 where a vertical section of a simple corner point grid geometry is given. In Figure 2 , the green lines represent the top and bottom surfaces of the reservoir model, the blue line is the projection in the vertical section of the fault surface (a simple vertical plane in this example...
Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-1467
..., a skilled interpreter will hand pick a dense grid of lines which are subsequently gridded to form a map. One of the more promising is the identification of discontinuities in the seismic spectrum where Liner et al. (2004) showed how such discontinuities can be used to map unconformities. An obvious way...
Paper presented at the SPE Annual Technical Conference and Exhibition, October 3–6, 1999
Paper Number: SPE-56445-MS
... the extent of a fault, the fault surface must be limited by other means. The geospatial approach uses a tip line polygon that represents the area of displacement. This polygon is not the same as a fault heave polygon that is used in traditional two- dimensional mapping. The tip line polygon represents the XY...
Paper presented at the SPE Annual Technical Conference and Exhibition, October 5–8, 2003
Paper Number: SPE-84280-MS
... method, the reservoir grid can be snapped to the geologic model without approximation of the fault surface or fault displacement. While the reservoir grid can be defined using either straight or curved grid lines, most of the commercially available simulator preprocessors can only support straight lines...
Paper presented at the International Petroleum Technology Conference, December 6–9, 2015
Paper Number: IPTC-18339-MS
... of a synthetic pillar-based grid representing a series of horsts and grabens. Note that pillars have an oblique geometry due to low-dipping faults. Figure 5 Map-view of the top of the grid shown in Fig. 2, in which a synthetic facies model has been interpolated using a constant variogram. Note that due...
Paper presented at the 1982 SEG Annual Meeting, October 17–21, 1982
Paper Number: SEG-1982-0294
... grid. The filtered maps were compiled using a variable gray level dens- ity scale instead of the more traditional contour lines. This ap- proach was chosen for several reasons. Variable density maps are considerably more cost-efficient and time-efficient to produce. Some of the filtered maps have...
Paper presented at the 1986 SEG Annual Meeting, November 2–6, 1986
Paper Number: SEG-1986-0497
... ABSTRACT No preview is available for this paper. amplitude map reflection spatial continuity amoco production grid strong reflection procedure evaluation information fault plane upstream oil & gas fault slice explorationist interpretation detailed map reservoir...
Paper presented at the International Petroleum Technology Conference, March 26–28, 2019
Paper Number: IPTC-19303-MS
...) in comparison to the dominant throw sense (blue). White lines indicate intersecting faults, and a model horizon is also shown (colored by elevation). IPTC-19303-MS 5 Building and quality checking of an unstructured grid Creation of a depogrid: a grid built in depositional space In traditional geological grid...
Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 10–13, 2013
Paper Number: SPE-164428-MS
... other with an "X", "Y", or " λ " geometry. This situation makes structure modeling very difficult, especially when using "pillar gridding" structural modeling workflows in Petrel™. Therefore, new workflows were necessary to accurately model the structure of Bahrain field. Figure 2 Well fault cuts...
Paper presented at the SPE Annual Technical Conference and Exhibition, September 27–30, 1998
Paper Number: SPE-48998-MS
... modeling methods have been used in the past: 1. Stepwise Fault: This is the only method which could be used with Cartesian grids. The flow calculation through the discontinuity line is correct but the geometry and the volumes can only be roughly approximated. 2. Corner Point Grid: This kind of grid...
Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 26–28, 2021
Paper Number: URTEC-2021-5509-MS
.... Geologic formation was interpreted by intersecting wellbore architecture with gridded stratigraphic horizons and isopach maps. Over 800,000 well-based formation records were used to create a 3D subsurface model of 42 formations and 1,537 faults in the Permian. Formation records were normalized to match...
Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17726200
... Summary Surfaces and faults are some of the most basic building blocks of subsurface models. Modeling of the main subsurface layers and their discontinuities is the core of prospect generation and reservoir mapping, usually constituting a significant portion of the total interpretation effort. Using...
Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 12–15, 2018
Paper Number: SPE-193202-MS
.... In more complex geological settings, the fault system may require significant simplification (e.g. when faults converge vertically; ‘Y’ or ‘λ’ faults) to be represented using a pillar grid. In a stairstep grid the K coordinate lines and the side faces of each cell are typically vertical, but the top...
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3400300
... the Benue magnetic intensity (TMI) grid of the basin after which the Trough at 500 meters flight line spacing. This research basement faults were mapped out.. The depths to the source involves interpreting high resolution magnetic data hence sedimentary thickness were also derived from the collected at 500...
Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19596-MS
... was to us the workstation, to digitally post data with drafting software or to grid and map the data with the company's mainframe computer. The advent of workstations coincided with the first 3D surveys, and was seen as a way to organize the large new datasets into a virtual library of 2D lines in x and y...
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