A5032391377- Geological and Geophysical Studies
- Seismic Imaging and Inversion Techniques
- Hydrocarbon exploration and reservoir analysis
- Geological Studies and Exploration
- Geological and Geochemical Analysis
- Geological formations and processes
- Reservoir Engineering and Simulation Methods
- earthquake and tectonic studies
- Drilling and Well Engineering
- Geomagnetism and Paleomagnetism Studies
- Seismic Waves and Analysis
- Methane Hydrates and Related Phenomena
- Dam Engineering and Safety
- Geophysics and Gravity Measurements
- High-pressure geophysics and materials
- Hydraulic Fracturing and Reservoir Analysis
- Geology and Paleoclimatology Research
- Oil and Gas Production Techniques
- Geological Modeling and Analysis
- Geochemistry and Geologic Mapping
Chevron (China)
1993-2000
Chevron (United States)
1991
Chevron (Netherlands)
1985
Lamont-Doherty Earth Observatory
1983
Columbia University
1983
University of Auckland
1976
Seismic sections from extensional basins can be structurally transformed to produce restored seismic showing subsurface geology of the past. Restoration is achieved using a simple and effective algorithm, which suited for use in an interactive interpretation environment. data are resampled along paleovertical trajectories, deformed equivalents what were originally closely spaced vertical lines. Paleoverticals generated within present-day section as follows: (1) origin points equally...
Abstract In the rejuvenated mountain front, preexisting basement structures are often reactivated and interact with subsequent thin‐skinned deformation. How deep affect shallower ones is key to establishing processes mechanisms for foreland fold‐and‐thrust system. We presented an exceptional case study on structural inheritance between Mesozoic strike‐slip faults shallow Cenozoic contractional folds from Northern Tianshan basin, Northwest China, using high‐resolution 2‐D 3‐D seismic data....
ABSTRACT Confidently defining the trajectory of faults that control structural traps is a recurring challenge for seismic interpreters. In regions with fault-related folds, and well data often constrain upper fold geometry, but location displacement controlling fault are unknown. We present generalized area–depth strain (ADS) analysis method uses observed depth variation in deformed horizon areas to directly estimate underlying depth, dip, displacement, layer-parallel from interpretation....
Carefully selected 2D transects contain an abundance of structural information that can constrain 3D analyses petroleum systems. Realizing the full value in a transect requires combining multiple, independent analysis techniques using fully interactive tools. Our approach uses quantitative geologic software instantaneously displays computations and analyses, eliminating time-intensive manual measurements calculations. By quickly testing multiple hypotheses, we converged on optimal solution...
Seismic lines from different vintages frequently mis‐tie where they intersect. The mis‐ties may stem amplitudes, a shift in time, or wavelet character. We can correct these to great extent by applying scale factor, static time shift, and phase rotation one of the lines. describe algorithms compute amplitude, differences at each intersection among series 2-D seismic then use an iterative least‐squares technique derive optimal corrections for line. include necessary modification nonlinear...
Abstract The surface trace and the throw of Waikato Fault have been determined from interpretation gravity measurements made along profiles perpendicular to fault. Along fault Mesozoic rocks (Murihiku Supergroup) are displaced vertically by at least 2.7 km near Port decreases steadily east about 0.7 Tuakau; dips steeply (75 ± 15°) north. To Tuakau, appears merge with Pokeno where a reversal offset occurs. has probably brought regional west-south-westward tilt large greywacke block pivoting...
PreviousNext No AccessSEG Technical Program Expanded Abstracts 1999Meren Field, Nigeria: A 4D seismic case studyAuthors: David E. LumleyAlan G. NunnsGuy DelormeA. A. AdeogbaMichel F. BeeDavid LumleyChevron Petroleum Technology Co., Alan NunnsChevron Overseas Inc., Guy DelormeChevron Nigeria Ltd., AdeogbaChevron and Michel BeeChevron Ltd.https://doi.org/10.1190/1.1820840 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked...
Abstract In 1996 Chevron Nigeria Ltd. acquired a repeat 3D seismic survey over the Meren Field, offshore Nigeria, for time-lapse reservoir monitoring purposes. By comparing with legacy dating from 1987, 4D images show evidence of significant fluid changes during 9-year interval1. A detailed interpretation E-05 sand in Block 2, based on horizon amplitude extractions 1987 and cross-equalized cubes, is consistent well production histories at 22 24 wells that penetrate reservoir. The remaining 2...
We report on a geophysical study of maar volcanoes in the Auckland Volcanic Field which was performed 1975, whose results remain relevant. Modelled gravity and magnetic anomalies indicate that substantial funnel-shaped magnetised basaltic bodies underlie mud-filled craters at Onepoto Orakei Basin. These may represent magma solidified within after initial explosive eruptive phases involved direct interaction between surface or near-surface water. The estimated volume residual basalt beneath...
A survey of temperature gradients in the uppermost sediments Louisiana continental shelf was done 1983 by Gulf Oil Corporation, using a 5-m-long probe. The covered 450 sq mi, with an average grid spacing less than 1 mi. purpose to detect heat flow anomalies due subsurface fluid flow. However, thermal perturbations seasonal variation bottom-water mask geological Bottom-water variations similar those recorded near area 1963-1965 explain most observed spatial and temporal changes shallow...
In central Asia, the Tianshan mountains have undergone a series of subduction-collision-accretion processes during Paleozoic times that resulted in forming basement structures later reactivated Cenozoic rejuvenation range. northern Tianshan-South Junggar foreland basin, en échelon W-E / WNW-ESE folds constitute large-scale fold-and-thrust belt (FTB). Using recent industrial 2-D and 3-D seismic surveys carried out western area FTB, we analyzed outcropping (Dushanzi Xihu anticlines)...
ABSTRACT Interactive interpretive color graphics systems were announced by contractors several years ago and recently have appeared in publicity releases from major oil companies. At Gulf Research Development we developed a proprietary system called ISIS (Interactive Seismic Interpretation System) which has been used successfully Exploration Production since early 1981. enables people inexperienced computer technology to interpret large amounts of data rapidly with great detail. Diverse...
PreviousNext No AccessSEG Technical Program Expanded Abstracts 1993Correcting amplitude, time, and phase mis‐ties in seismic dataAuthors: Thomas N. BishopAlan G. NunnsThomas BishopChevron Petroleum Technology Co., Canada Alan NunnsChevron Co. U.S.https://doi.org/10.1190/1.1822306 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1822306FiguresReferencesRelatedDetails SEG...