Role of 3D seismic for quantitative shallow hazard assessment in deepwater sediments

2010 ◽  
Vol 29 (8) ◽  
pp. 930-942 ◽  
Author(s):  
Nader C. Dutta ◽  
Randal W. Utech ◽  
Dianna Shelander
Keyword(s):  
Hazard Assessment ◽  
3D Seismic

The role of data source selection in chemical hazard assessment: A case study on organic photovoltaics

2019 ◽  
Vol 365 ◽  
pp. 227-236 ◽  
Author(s):  
Haoyang He ◽  
Yadira Gutierrez ◽  
Thomas M. Young ◽  
Julie M. Schoenung
Keyword(s):  
Hazard Assessment ◽  
Organic Photovoltaics ◽  
Source Selection ◽  
Chemical Hazard ◽  
Data Source

REDUCING RESOURCE UNCERTAINTY USING SEISMIC AMPLITUDE ANALYSIS ON THE SOUTHERN RANKIN TREND, NORTHWEST AUSTRALIA

1999 ◽  
Vol 39 (1) ◽  
pp. 128 ◽  
Author(s):  
D. Sibley ◽  
F. Herkenhoff ◽  
D. Criddle ◽  
M. McLerie
Keyword(s):  
Seismic Attributes ◽  
3D Seismic ◽  
Amplitude Analysis ◽  
Seismic Amplitude ◽  
Amplitude Versus Offset ◽  
Minimum Number ◽  
Gas Fields ◽  
Resource Uncertainty

Between 1973 and 1996 West Australian Petroleum Pty Limited (WAPET) discovered five major gas fields on the southern Rankin Trend including Spar, West Tryal Rocks, Gorgon, Chrysaor, and Dionysus (collectively termed the Greater Gorgon Resource). Recent discoveries at Chrysaor and Dionysus emphasise the role of subtle 3D seismic attributes in finding hydrocarbons and defining reserves with a minimum number of wells.The Gorgon, Chrysaor, and Dionysus fields were covered by 3D seismic data shot in 1991 and 1995, which led WAPET to discover Chrysaor and later Dionysus. Subsequent to the 3D acquisitions, field reservoirs have been correlated with anomalous seismic events (seismic amplitude and amplitude versus offset) that conform to depth structure. Follow-up work has shown that combining these 3D seismic attributes improves the prediction of wet sands, gas sands, and other lithologies.The resulting understanding and confidence provided by this 3D seismic has driven an aggressive exploration program and defined field reserves at a high confidence level. Results include the recent award of permit area WA-267-P to WAPET and the ongoing studies to begin development of the Greater Gorgon Resource.

scholarly journals Geopower

2016 ◽  
Vol 41 (1) ◽  
pp. 44-67 ◽  
Author(s):  
Amy Donovan
Keyword(s):  
Risk Reduction ◽  
Hazard Assessment ◽  
Disaster Risk Reduction ◽  
Disaster Risk ◽  
Expert Advice ◽  
Critical Geography ◽  
Assemblage Theory ◽  
Scientific Technical ◽  
Opening Up

This paper discusses disaster risk reduction (DRR) in the context of emerging geographical ideas about topologies and assemblages. It focuses on the role of expert advice in DRR and the resulting political and epistemological issues. The critical geography of disasters still struggles to communicate with persistent scientific technical-rational approaches to hazard assessment. Furthermore, recent studies have shown the potential for expert advice to be (mis)used for political purposes. Assemblage theory might be useful in opening up this hybrid area of research, as it allows a nuanced view of disasters and DRR that can incorporate complex human-environmental relationships and diverse knowledges.

The role of ASTM E27 methods in hazard assessment: Part I. Thermal stability, compatibility, and energy release estimation methods

2004 ◽  
Vol 23 (4) ◽  
pp. 266-278 ◽  
Author(s):  
David Frurip ◽  
Larry Britton ◽  
William Fenlon ◽  
John Going ◽  
B. Keith Harrison ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Release ◽  
Hazard Assessment ◽  
Estimation Methods

The role of geosteering in developing the Pyrenees Field

2014 ◽  
Vol 54 (2) ◽  
pp. 494
Author(s):  
Mark Woodall ◽  
Grant Skinner ◽  
Mauro Viandante ◽  
Laura Pontarelli ◽  
Konstantinos Kostas ◽  
...  
Keyword(s):  
Path Planning ◽  
Real Time ◽  
3D Seismic ◽  
Time Data ◽  
Associated Gas ◽  
Excellent Quality ◽  
Viscous Oil ◽  
Gas Bearing ◽  
3D Seismic Data

The Pyrenees Field comprises a series of biodegraded 19° API oil accumulations reservoired in Early Cretaceous sandstones of the Pyrenees Member in the Exmouth Sub-Basin, offshore WA The reservoir comprises excellent quality, poorly consolidated shallow marine to deltaic sands. Variable thickness oil columns (some with associated gas caps), strong bottom water drive, and relatively viscous oil has necessitated the drilling of long (up to 2,000 m) horizontal wells to maximise reservoir exposure while geosteering well to within a few meters of the roof of the reservoir to maximise standoff from the OWCs. The field is covered by excellent quality 3D seismic data; however, pre-drill mapping for well path planning is complicated by the unconformable nature of the top reservoir boundary formed by the sub-cropping Pyrenees Member. Faulting within and localised velocity variations above the reservoir are also a challenge to pre-drill well planning. Cutting-edge geosteering tools have been used to achieve the desired well paths. The tools use azimuthal deep induction resistivity measurements to model and predict reservoir and fluid boundaries, taking advantage of the large resistivity contrasts between the overlying sealing mudstones of the Muderong Formation and the oil (and occasionally gas) bearing Pyrenees reservoir sands. This extended abstract discusses the application of the tools both in pre-drill well path planning and the real-time geosteering operation. Operations are managed between the rig and a sub-surface team located in a dedicated geosteering room onshore. Here real-time data is compared with planned well paths in 3D seismic and geocellular reservoir models and well path adjustments made to optimise final well placement.

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