About this webinar
Seismic techniques have been the core part of the E and P activities for several decades. Their accuracy in characterising the reservoirs and seals will likely see them to remain the leading method for the Oil and Gas and CCS industries. The ever-increasing demand for more environmentally friendly, as well as economic solutions has propelled continuous evolution in the implementation of the seismic techniques. The petroleum industry as the backbone energy-provider of the world is both required and can afford to investigate the use of modern technologies. Out of many options which have been trialled, the Fibre Optics and Surface Orbital Vibrators appear to have triumphed for the new generation of receivers and sources, respectively.
The Fibre Optics (FO) is commonly known for its use in the data transmission (e.g. internet) industries. However, the Oil and Gas industries started testing its use in the 1990s. The cycle of demand and evolution has brought the fibre optics to a point where they are being deployed more commonly at surface and wellbores to record the seismic signal, a task we conventionally associate with geophones. Their continuous and dense measurements at high signal to noise ratio inside the wells, provide a very cost-effect pathway to evaluate the temperature profile of the subsurface and acquire vertical seismic profiles.
In terms of seismic sources, the need for smaller footprints to the environment, the repeatability and remote access and utilisation has led the industry towards stationary permanent sources. While vibroseis trucks continue to provide a versatile seismic source, Surface Orbital Vibrators (SOV) have demonstrated their capabilities in providing reliable and repeatable signals as a seismic source. Their implementation in conjunction with geophones and fibre optics for continuous monitoring of the reservoir behaviour, fluid movements and the integrity of the seal has been successfully utilised in several locations around the world.