1-20 of 26478 Search Results for

Vertical resolution

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the Offshore Technology Conference Asia, March 20–23, 2018
Paper Number: OTC-28330-MS
...: The big difference between the conventional log's vertical resolution (6 inches and above) and the thickness of these beds (sometimes less than 1 inch); and The direct influence of the low resistivity shale laminations within these thin sand laminae on supressing the resistivity reading (thus...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216042
... ABSTRACT Resolution of seismic data represents the ability to identify individual features or details in a given image and the temporal (vertical) resolution is a function of the frequency content of a signal. Thus, in order to improve thin-bed resolution, broadening of frequency spectrum is...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, November 7–10, 2000
Paper Number: SPE-64630-MS
... tools, faces the issue of vertical resolution because the aperture of the tool is relatively large (about 24 in.); and the raw echoes acquired have to be stacked to some degree. Until now, WT inversion was not applied to NMR data, but its application to NMR data follows naturally as part of an effort to...
Proceedings Papers

Paper presented at the SPWLA 55th Annual Logging Symposium, May 18–22, 2014
Paper Number: SPWLA-2014-KKKK
... tool must provide higher-quality MR data comprising improved accuracy for porosity components with short-T 2 relaxation time, improved tolerance to lateral motion and better vertical resolution. Accuracy improvement can resolve problems related to heavy oil, micro-porosity in carbonates, and clay...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0835
... Summary From the standpoint of a seismic interpreter, one of the main topics of interest is vertical resolution. We want to improve it by acquisition, processing, reprocessing, advanced imaging or simply by postprocessing, and we all tend to conclude that frequency enhancement leads to the...
Proceedings Papers

Paper presented at the SPWLA 54th Annual Logging Symposium, June 22–26, 2013
Paper Number: SPWLA-2013-I
... with a vertical resolution of several feet. This relatively poor resolution is not an intrinsic feature of NMR tools, but a consequence of the logging technique which optimizes speed. A tool with a 6-in antenna should be capable of achieving a better vertical resolution than the 22-in evident on...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 32 (04).
Paper Number: SPWLA-1991-v32n4a1
Published: 01 July 1991
...William K. Mitchell; Richard J. Nelson Log measurements have vertical resolutions ranging from a few inches to several feet. These differences can make log analysis difficult in reservoirs with rapidly changing lithology, porosity, or saturation. By improving the vertical resolution of lower...
Proceedings Papers

Paper presented at the SPWLA 31st Annual Logging Symposium, June 24–27, 1990
Paper Number: SPWLA-1990-JJ
...SPWLA 31st Amuml Logging Sympsium. June 2427. 1990 IMPROVED VERTICAL RESOLUTION OF WELL LOGS BY RESOLUTION MATCHING Richard J. Nelson - Oryx Energy Company William K. Mitchell - Oryx Energy Company ABSTRACT Log measurements have vertical resolutions ranging from a few inches to several feet. These...
Proceedings Papers

Paper presented at the SPE Western Regional Meeting, May 27–29, 2010
Paper Number: SPE-132654-MS
... and reduce uncertainties. However, the scale difference between seismic and well log presents a challenge. Geostatistical modelers encounter both upscale and down-scale issues. We illustrate an iterative vertical resolution modeling methodology to compromise both seismic and log resolutions, and a...
Journal Articles
Journal of Petroleum Technology 36 (06): 993–1001.
Paper Number: SPE-11855-PA
Published: 01 June 1984
.... 3,4 and Moran and Kunz. 5 Inclusion of skin effect improves the vertical resolution of the coil array compared with the simpler Doll theory. In more recent years, radial response has been studied by Woodhouse et al . 6,7 Radial and vertical responses have been studied by Gianzero and Anderson, 8...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 25–27, 2009
Paper Number: OMC-2009-032
... wireline logs, can substantially reduce reserves uncertainty in thinly bedded formations. One of these technologies is the resistivity imaging tool. Capable of a vertical resolution down to 0.10 inches, resistivity imaging tools provide a reliable means of detecting thinly bedded formations. The other...
Proceedings Papers

Paper presented at the SPWLA 50th Annual Logging Symposium, June 21–24, 2009
Paper Number: SPWLA-2009-37700
... improved algorithm that allows us to stack the ST planes in the ST domain directly. Results from processing the monopole and dipole field data from Mexico with the 2D algorithm show the improved vertical resolution of the slowness logs and improved thin bed slowness determination. In addition, multiple...
Proceedings Papers

Paper presented at the SPE North Africa Technical Conference & Exhibition, March 12–14, 2008
Paper Number: SPE-112070-MS
... uncertainty in thin bed formations. One of these is a resistivity imager tool such as the X-tended Range Micro Imager (XRMI). With vertical resolution down to 0.10 inches, resistivity imager tools provide a reliable means of thin bed detection. The other technology is nuclear magnetic resonance (NMR). NMR...
Proceedings Papers

Paper presented at the SPWLA 42nd Annual Logging Symposium, June 17–20, 2001
Paper Number: SPWLA-2001-YY
... frequencies can not be stacked arbitrarily: the stacking must be confined to a certain frequency. This requirement affects both the logging speed and vertical resolution of multi-frequency logging tools such as the MRIL. For efficiency, multi-frequency logging tools acquire data first with the (+)phase over...
Proceedings Papers

Paper presented at the SPWLA 42nd Annual Logging Symposium, June 17–20, 2001
Paper Number: SPWLA-2001-JJ
... ABSTRACT Spectral gamma-ray logs provide one of the best means to investigate the mineralogy of thin-bedded sedimentary sequences, to correlate among different logging runs, and to compare logging data and core measurements. Increasing vertical resolution over currently available tools...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 1–4, 2000
Paper Number: SPE-63215-MS
... Abstract The vertical resolution of continuous, multi-frequency NMR logs depends on the length of the stacking interval. Several factors determine the stacking length, such as the number of Carr-Purcell-Meiboom-Gill (CPMG) echo trains that are stacked to improve signal-to-noise ratio, the time...
Proceedings Papers

Paper presented at the SPWLA 41st Annual Logging Symposium, June 4–7, 2000
Paper Number: SPWLA-2000-ZZ
... resolution show that, with the proper regularization parameter, some formation profiles may be recovered with a vertical resolution close to one foot. spwla 41 log analysis deconvolution filter resolution tool resolution tool response noise Upstream Oil & Gas deconvolution result...
Proceedings Papers

Paper presented at the SPWLA 41st Annual Logging Symposium, June 4–7, 2000
Paper Number: SPWLA-2000-FFF
... ABSTRACT Petrophysical analysis of thinly laminated sequences with well logs is a challenging task. Because the vertical resolution of most logging tools may be very much coarser than the thickness of individual lamina, these tools usually record only averaged formation properties...
Proceedings Papers

Paper presented at the 1999 SEG Annual Meeting, October 31–November 5, 1999
Paper Number: SEG-1999-1307
... ABSTRACT No preview is available for this paper. upstream oil & gas reflectivity resolution signal deconvolution wavelet conventional processing frequency reflectivity compensation reservoir characterization vertical resolution spectral estimate amplitude spectrum...
Journal Articles
SPE Reservoir Evaluation & Engineering 2 (04): 325–333.
Paper Number: SPE-57481-PA
Published: 01 August 1999
...R.A. Behrens; T.T. Tran Summary Three-dimensional (3D) earth models are best created with a combination of well logs and seismic data. Seismic data have good lateral resolution but poor vertical resolution compared to wells. The seismic resolution depends on seismic acquisition and reservoir...

Product(s) added to cart

Close Modal