What is 4D seismics? — Way of the Geophysicist
Abstract. Arco demonstrated time-lapse 3D seismic, or "4D," in the 1980s. The technology is focused on drilling better wells and improving reservoir management, thus increasing the poor 30-35% average reservoir recovery factor.
4D Seismic Survey Planning & Design | SLB
4D survey evaluation and design. We employ a diverse range of feasibility studies toward determining the most appropriate acquisition, processing, and inversion parameters for each 4D survey. Repeatability for a true 4D signal
4D seismic — Past, present, and future - GeoScienceWorld
Abstract. Seismic monitoring or 4D has started onshore on a few cases more than 30 years ago but it has really developed over the last two decades, first in offshore fields where seismic image is generally of good quality, then onshore with more difficulties to achieve similar repeatability.
The Role of Time Lapse(4D) Seismic Technology as Reservoir Monitoring ...
For seismic monitoring of geologic CO 2 storage, it is useful to measure time-lapse (TL) variations of seismic attenuation. Seismic attenuation directly connects to different petrophysical parameters within the CO 2 storage complex. We have developed an approach to derive smooth time-variant amplitude spectra from seismic signals by using the sparse strongest signal peaks, and then measuring ...
4-D seismic method - SEG Wiki - Society of Exploration Geophysicists
4D seismic. History matching. 1. Introduction. Reservoir simulation models are increasingly used for making forecasts of future reservoir behavior. It is standard practice to calibrate parameters of the simulation model to match production data, as this generally provides greater confidence in the forecast of future production.
4D seismic: Some examples from simple to very complex ones ... - Earthdoc
Geoscience. Subsurface Imaging. Time-Lapse 4D Seismic. Achieve accurate reservoir monitoring with expert time-lapse 4D seismic technology.
5 Essential Truths About 4D Seismic Data Processing | PGS
Full Text. PDF/ePub. Tools. Share. Abstract. Standards for 4D seismic feasibility estimation and interpretation aim to simplify the 4D seismic interpretation process, facilitate understanding of results, and accelerate learning between projects and between disciplines.
Time Lapse Processing & Interpretation - Seismic | SLB
n. [Geophysics] Three-dimensional (3D) seismic data acquired at different times over the same area to assess changes in a producing hydrocarbon reservoir with time. Changes may be observed in fluid location and saturation, pressure and temperature. 4D seismic data is one of several forms of time-lapse seismic data.
Introduction to this special section: 4D seismic - The Leading Edge
Offshore staff. BERGEN, Norway — Equinor has commissioned Shearwater GeoServices to perform 4D monitoring at the Mariner Field in the UK northern North Sea and the Heidrun Field in the Norwegian Sea.. Shearwater will deploy its Isometrix technology for both surveys. This involves use of 4D seismic monitoring to detect reservoir dynamics over time to optimize reservoir management and ...
4D seismic — Past, present, and future | The Leading Edge
The term 4D seismic reflects that calendar time represents the fourth dimension. A more precise term is repeated seismic, because that is actually what is done: a seismic survey over a given...