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Operative assessment of hydrocarbon potential of prospecting block in the region of Marcellus shale spreading by the frequency-resonance method of remote sensing data processing and interpretation
- 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 - 5
Abstract
Summary
The possibility of mobile technology of frequency-resonance processing and interpretation of remote sensing data using for the local areas with increased hydrocarbon (HC) (oil, gas and gas condensate) concentrations detection and mapping within the shale spreading is analyzed. This technology is the “direct” method for oil and gas prospecting and exploration. Experimental studies were conducted in local area of Marcellus shale spreading. The anomalous zones of the “reservoir of gas” (“gas, oil”) type were detected and mapped within the surveyed block. Parameters of many anomalous zones (areas and maximum estimates of fluid pressure in the reservoirs) allow us to classify them as promising objects, the probability of commercial HC inflows from which is relatively high. The observed anomalies should be considered as priority local areas for detailed study by geophysical methods and drilling. This is essentially the “Sweet spots” zones. The received estimates of maximum values of reservoir pressure within the observed anomalous zones vary in a fairly wide range. This indicates that the projected productive horizons can be located both above and below the shale complexes. Therefore, the practically all (available for drilling) interval of the cross-section should be studied, when for the hydrocarbon accumulations prospecting within areas of shale spreading. Anomalous zones with very low values of fluid pressure in the reservoirs should not be considered as priority targets for detailed study. The development of the surveyed area starting from detected anomalous zones will allow significantly reduce the harmful effects on the environment. The tested mobile technology allows detecting and mapping operatively the “Sweet spots” zones within the shale and other unconventional reservoirs spreading.
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