117239_b26e7d1d6c3b4b6c9c34 Passive Seismic Spectroscopy (PSS) helps operators to identify P-field absorption zones and then to delineate and plan further exploration or seismic profiles. (read more)

Integration

PGES brings together the people, the tools, and the technology to enable clients to capture the benefits of a comprehensive and integrated seismic, passive seismic, MT, AMT and geochemical imaging in our processing centers and in client operator offices.

Passive Seismic Spectroscopy

PGES’s Passive Seismic Spectroscopy (PSS) can be used for: First and fast delineation and localization of attenuation zone over the acquisition block; Delineate and plan seismic profiles; Easy and fast implementation, especially in difficult terrains; Better well placement; Better integration with all geophysical data and better reserve estimates;

Gamma-Ray Radiometry RDM

Gamma R
ay-Ionizing technology is a short intense bursts of electromagnetic energy with enough penetration power. Shale’s contain much radioactive material while sandstone, limestone and dolomite contains very little. The borehole only potential old bearing well is traversed with a sensing device that can detect and measure the intensity of Gamma Ray and plot them on a continual basis vertically.The formations with high radioactive are shale’s and those with a low radioactive, are maybe potential oil bearing zones. Gamma radiation survey uses a sensing device that can delineate a high to low radioactive from a horizontal attitude on the surface.

MT – AMT

The interpolation between adjacent data allows the definition of a section of electrical resistivity (exactly as in the case of a geoelectric resistivity section). The magnetotelluric surveys reach great depths in confined spaces. They are used in general to define the geological and hydrogeological setting for the following applications: Definition of structures of deep gravitational instability; definition of geological and tectonic structures; definition of geothermal, hydro‐geological and hydrocarbonmodels for the optimal location of wells.

PST

Passive Seismic Tomography (PST) inversion utilize P and S-wave travel times from natural micro-earthquakes, to accurately estimate 3D Vp (structural) and Vp/Vs (lithologic) information of the subsurface and its potential starting from a monodimentional input velocity model. Passive Seismic Tomography PST has been used in the past for seismological reasons on a different and certainly larger scale than that of hydrocarbon or geothermal exploration. The quality of results and the advantages over conventional seismic, clearly indicate the benefits of this method, in oil, gas and geothermal exploration, delineation and even better during production when the input velocity model is well known.

Gravity

Near-vertical fault or interface seismic signal is typically scattered by these interfaces. In contrast, gravity, MT and AMT have their best imaging at vertical interfaces across which lateral density or magnetic susceptibility contrasts exist. Different exploration methods are vital for helping operators providing independent corroboration of total volume and shape hydrocarbon potential. Seismic data quality can be significantly improved with gravity, MT, AMT, passive seismic and micro seismic tomography results to improve and refine the seismic velocity model. Without constraining information, a gravity model can be modified in an infinite number of ways in order to match the observed gravity signal.

Exploration technologies in action

Petroleum GeoExploration Services provides exploration and production technologies and techniques for hydrocarbon and geothermal exploration in any environment.

Our geophysical services enable accurate measurements for the most detailed insight into subsurface geology and properties, so you can be certain that you always have the information you need to make the best decisions.

We deploy our land acquisition grids and profiles worldwide to help oil and gas operators explore for hydrocarbon accumulations and geothermal potentials (read more).