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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3419749
... test data sets comprising different time-lapse seismic image slices generated using different porosity and permeability distributions that are not a part of training to estimate the CO 2 saturation values along with plume extent. The proposed algorithm provides a framework for direct estimation of CO...
Proceedings Papers

Paper presented at the 54th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2020
Paper Number: ARMA-2020-1996
... ABSTRACT A new fracture propagation simulator, based on a time-stepped expansion (TLSM) of the 2D linear superposition method (LSM), is applied here to study the growth of hydraulic fractures from the perforations outward. Based on the resultant displacement vector field, TLSM computes the...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3200444
...: Tuesday, September 17, 2019 Session Start Time: 1:50 PM Presentation Time: 3:55 PM Location: 217D Presentation Type: Oral axis tsvankin intensity crampin anisotropic azimuth geophysics media upstream oil & gas wave propagation depth slice seismic image seg international...
Proceedings Papers

Paper presented at the SPE Reservoir Simulation Conference, April 10–11, 2019
Paper Number: SPE-193828-MS
... reservoir description on a real-time basis. production monitoring production control flow in porous media drillstem/well testing production logging Upstream Oil & Gas real time system Artificial Intelligence Drillstem Testing single-phase reservoir objective function 1 sensor fracture...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995796
...Seismic Wheeler Domain Transform and Time-Frequency Analysis for Sedimentary System Characterization in Bohai Oilfield Teng Liu*, Jun Wang, Jingsi Zhang, Li Zhang, Xijia Sun, Li en Bian, China National Offshore Oil Corporation (CNOOC) Ltd Tian Jin Branch, Tian Jin, P.R.China Summary In order to...
Proceedings Papers

Paper presented at the The 28th International Ocean and Polar Engineering Conference, June 10–15, 2018
Paper Number: ISOPE-I-18-269
... present state of EMD research. Fig. 12: First three IMFs decomposed by EMD in the frequency domain The implementation of STPT involves three steps: (1) Consider to be a discrete time series, choose a proper size for the window and the overlap of each window, and slice the time data into a series of...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17746539
... seg seg international exposition fourier transform synthetic signal upstream oil & gas mst time resolution equation application time-frequency analysis frequency slice gaussian window resolution reservoir characterization time-frequency resolution frequency exploration data...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17681731
...Acoustic 3D least-squares reverse time migration using the energy norm Daniel Rocha, Paul Sava & Antoine Guitton Center for Wave Phenomena, Colorado School of Mines SUMMARY We propose a least-squares reverse time migration (LSRTM) that uses a proper imaging condition to obtain faster convergence...
Proceedings Papers

Paper presented at the SPE Reservoir Characterisation and Simulation Conference and Exhibition, September 14–16, 2015
Paper Number: SPE-175604-MS
...). Figure 4 A) A map revealing the pattern of N75W and N45W seismic faults at three en echelon fields with their saddles in between. Note the dominant N75W faults in the central part of SE Abu Dhabi (deeper) compared to those across the en echelon Fields A & B at shallower level. B) A time slice for...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13823241
...) Amplitude of the synthetic extracted along the top of layer 2. 10 20 30 40 50 600 20 40 60 80 100 Thickness (m) Fre qu en cy (H z) a) 0 10 20 30 40 50 600 0.2 0.4 0.6 0.8 1 1.2 1.4 Thickness (m) Am pli tud e b) Figure 2: (a) the time-frequency map of the upper interface. (b) The amplitude of the tuning...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13869051
... FWI and demonstrate its effectiveness on a large scale 3D problem. Presentation Date: Tuesday, October 18, 2016 Start Time: 11:10:00 AM Location: 162/164 Presentation Type: ORAL helmholtz equation seg seg international exposition operator matlab algorithm computation reservoir...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13612063
... physics of the recorded data. METHODOLOGY We study the performance of full waveform based time-lapse inversion algorithms on a realistic synthetic model. A reser- voir simulator and rock physics model provide a 3D cube of approximate time-lapse changes of seismic properties. A 2D slice is extracted from...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 12–15, 2005
Paper Number: SPE-93490-MS
... Abstract From structural analysis of 3D seismic data over a giant field, offshore Abu Dhabi, a complex pattern of intersecting, broadly conjugate, strike-slip dominated en-echelon fault systems are observed from ‘basement’ levels up to latest Cretaceous horizons. Over geologic time these fault...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 12–15, 2005
Paper Number: SPE-93489-MS
... main segments, which exceed 60ft of maximum cumulative offset. Investigation of this system by time-slicing the coherency data shows that the system changes style vertically (Figure 10), being a diffuse zone above reservoir in fine-grained sequences, changing to a series of linked en-echelon NW-SE...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5833237
... structures of sand dunes. But there are two difficulties in interpreting raw GPR data: 1. GPR data in time scale do not represent the true depth and shape of internal structures; 2. Topography of sand dunes needs to be taken into consideration. In this paper, reverse time migration (RTM) is applied into...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5833447
... seismic imaging applications, where the network is large-and-dense and data fidelity is high, it is virtually impossible to collect all the raw seismic data in real-time due to the severe bandwidth and en- ergy constraints. Furthermore, data collection is prone to the bottleneck problem and not fault...
Proceedings Papers

Paper presented at the 4th ISRM Congress, September 2–8, 1979
Paper Number: ISRM-4CONGRESS-1979-100
.... Neither of the latter two materials can generally sustain tensile stresses whereas decomposed rocks often can. In order to examine the effects on stability of having tensile stresses within the upper part of a slope, a new concept of inter-slice forces is introduced such that both compressive and tensile...
Journal Articles
Journal of Canadian Petroleum Technology 54 (03): 164–182.
Paper Number: SPE-174547-PA
Published: 20 May 2015
... exhaustive time-lapse-seismic observations into the petroleum-reservoir model with the EnKF. The algorithm starts with generation of an initial porosity en- semble that consists of Ne realizations and contains some prior in- formation about porosity distribution (e.g., spatial structure or conceptual model...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-228
... and Poisson's ratio of 0.25. RÉSUMÉ: De recentes etudes ont permis de mettre en evidence le potentiel de l'estimation de l' etat de contrainte sur le site,à par-tir des observations de la fracturation en disque du noyau rocheux. Si cette possibilite se confirme, elle pourra être utilisee dans les...

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