Abstract
In this article we present a novel method for the estimation of sulphur deposit resources based on high-resolution shallow reflection seismic survey and well logging. The study area was sited in the northern part of the Carpathian Foredeep (SE Poland), where sulphur ore occurs in carbonate rocks at a depth of about 120 m, with a thickness of approximately 25 m. The results of many years of seismic monitoring performed in the area of the sulphur deposit allowed us to determine the quantitative relationships between the amplitude of the seismic signal reflected from the top of the deposit and its petrophysical parameters such as porosity and sulphur content. The method of evaluating sulphur deposit is based on extensive statistics concerning the reservoir properties obtained from borehole data. We also discuss a methodology for conducting field acquisition and processing of seismic data in the aspect of mapping the actual amplitudes of the signal reflected from the top of a deposit. The results of estimating the abundance of carbonate sulphur deposits are presented based on the example of a seismic cross-section from the Osiek sulphur mine. Obtained results allow indicating the most prospective zones suitable for exploitation.
Highlights
Sulphur, as a raw material, has had seen extensive application over the centuries
This paper presents the results of a high-resolution shallow seismic reflection survey that was acquired to identify a new area for sulphur exploitation to extend the Osiek sulphur mine
We have presented the application of the high-resolution seismic survey for estimation of shallow sulphur deposit resources
Summary
As a raw material, has had seen extensive application over the centuries. It is used in the production of pharmaceuticals, medicine, gunpowder and wine, in the rubber industry and in the chemical industry in the broadest sense. The basic product obtained from sulphur is sulphuric acid, which is one of the main components of many further chemical processes, such as the production of artificial fertilisers. The world economy has seen a dramatic decline in the extraction of native sulphur. As extracting fossil native sulphur is expensive, it is being replaced by cheaply obtained sulphur recovered from sulphurised natural gas and oil deposits. Native sulphur deposits are still a source of sulphur in international trade, especially for local needs
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