...: are critical for the evaluation and identification of potential spill points, can image the opening of natural fractures as pressure increases during CO 2 injection, can map the CO 2 plume as it moves across the field. However, geophysical methods do not answer the critical question is CO 2...

... geologist drilling operation clastic rock anchor rock type production control structural geology wilcox 4 reservoir characterization wilcox 1 subsurface journey permeability boundary production monitoring interpretation wilcox 3 anchor project appraisal operation imaging figure 6...

... Abstract The Stampede Field is a sub-salt Miocene field in the deepwater Gulf of Mexico. Although it is a generally well imaged structure, development and production requirements warranted an improved image over the field. A variety of seismic data such as Narrow Azimuth (NAz), Wide Azimuth...

... seismic source imaging Abstract This laboratory study explores the geophysical imaging applications of a fiber optic sensing system in a marine environment, from fiber installed on pipes or casing to fiber laying on the floor. The most common application with fiber installed on casing is borehole...

... inches beyond the wellbore. Far-field microseismic mapping offers an image of micro-earthquakes that are caused by shear slippage during a hydraulic fracture treatment. Although the location of the associated microseismic events enables spatial mapping of the stimulated rock volume, particularly its...

...) improved subsurface imaging to increase flexibility in well trajectories; (c) deepened integration between completion choices and well designs; (d) technical functionality rationalization; and (e) supply chain improvements. This paper highlights the key change management lessons learned that took place...

...) systems. Full azimuth and long offset seismic data acquired with a sparse array of ocean bottom nodes and a dense patch of shots has proven to be a very successful technique for both 3D and 4D imaging below complex salt overburden in the deep water Gulf of Mexico, where more than 25 OBN surveys have...

... We present a seismic processing workflow that significantly improves subsurface images of hydrocarbon targets in shallow water. Our workflow is dependent on an integrated velocity model building toolkit, which works well for salt geometry and sediment velocity model building. The workflow...

... to target - so as well as providing an image of the drilling targets, the seismic survey is must deliver reliable information about the overburden to mitigate drilling surprises. In addition, economic challenges reflect the need to acquire data over large areas in a cost-effective manner, but without...

... onto vessels of opportunity, limited the systems that could be used at the time. Therefore, the bathymetric model that was produced, for example, was useful, but limited by a swath bathymetry system that could only image to ~210m of water depth while PSA contract area water depths vary between 96...

... Abstract The objective of seismic acquisition and imaging is to recover the true properties of the earth. Major obstacles to obtaining this ideal goal are: the bandwith of the emitted source signals, the spatial sampling of the seismic survey and spatial aliasing, the aperture...

... Abstract In marine oil and gas exploration of seismic data acquisition, both primary and multiple reflections are recorded at the streamers. In seismic data processing, primaries are usually used as signal to image the subsurface; multiples are regarded as noise to be removed (SRME) (Verschuur...

...References References Tangirala , S. , , "Integrated Autonomy for the Inspection of Underwater Structures Using Autonomous Underwter Vehicles" ., AUVSI Washington : s.n., AUVSI11 , 2011 . McLean , J.W. "High Resolution 3-D Underwater Imaging" , SPIE Conference...

... uncertainty estimates that were obtained are being used in building the next generation static model for St. Malo. Subsurface setting and reference imaging A collaborative, multi-organization depth uncertainty analysis was conducted (involving two E&P companies and a geophysical contractor) over the St...

... Abstract In recent years, it has become the standard practice in deep water Gulf of Mexico (GOM) to perform seismic imaging assuming tilted transverse isotropy (TTI) symmetry to describe the anisotropic effects of wave propagation in salt-withdrawal mini-basins. When compared to isotropic...

... is difficult to identify. Correcting for attenuation during the model building and imaging stages of processing creates the opportunity to relate attenuation factors to the subsurface model and hence have geologic constraints on the attenuation factors and permits the application of a attenuation correction...

... Abstract In January 2011, 3D at Depth was awarded a RPSEA contract to bring high-resolution three-dimensional (3D) laser imaging technology from the lab into an underwater environment for the oil and gas industry. Throughout the project, CDL Inc. provided expert engineering support...

... performance computing capacities. Second, new acquisition techniques such as wide-azimuth have improved the illumination of the subsurface, filling gaps in the images. Lastly, progress in depth imaging led to a better understanding of the structures, which improved the description of the subsurface...

... Abstract The soaring cost of drilling in deep-water environments leads to a strong demand for high-quality interpretable images and associated models, both products of seismic imaging, in many basins around the world. Anisotropic models more closely represent the real earth's properties. Using...

... Abstract Until very recently, the petroleum system of Brazilian presalt reservoirs could not count on good enough seismic imaging to support the seismic interpretation. In the 90's, the decision of Petrobras to expand its exploration frontiers towards the sedimentary basins of EspÍrito Santo...