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On possibility the values of fluid pressure in reservoirs using for the oil-and-gas prospects assessing within deep horizons of cross-section
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 15th EAGE International Conference on Geoinformatics - Theoretical and Applied Aspects, May 2016, Volume 2016, p.1 - 6
Abstract
Summary
The results of petroleum prospects assessment of the deep horizons of cross-section within some structures and oil and gas fields, as well as local sites for deep wells drilling in the Dnieper-Donets (DDB) and Caspian depression are analyzed. A survey of these areas were carried out with a frequency-resonance technology of satellite images processing using for “direct” searching and prospecting of hydrocarbons (HC) accumulations. The investigation results are given by maps of maximum values of fluid pressure in the reservoir. This is, in fact, a complex parameter, whose value depends of the gas pressure, contained in the fluid or in free form in the reservoir, as well as of its amount, i.e. of the rock porosity. The maps, constructed by the results of prospective structures investigation, are compared with similar maps on the known hydrocarbon deposits. Maps of maximum values of reservoir pressure can significantly narrow down the area of detailed prospecting work of priority character conducted and of prospecting wells location. Taking into account the hydrostatic principle such maps give the opportunity to shape the preliminary assumptions on the depth of hydrocarbon deposits location. The absence within the contours of detected anomalous zones of the “hydrocarbon deposits” type of sites with higher values of fluid pressure in reservoir allow avoids such areas (anomalies) from the list of objects that deserve priority detailed study and drilling. The conducted studies allow to conclude that the results of satellite imagery decoding - this is new information with the “direct hydrocarbon indicators”, which can be useful and in demand at any stage of the exploration process for oil and gas.
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