Therefore, another object of this invention is to provide a method for melting and recovering sulfur from an ore ed wherein the collapse of the surrounding limestone bed does not interfere with the extraction of the sulfur and does not necessitate the drilling of a new extraction borehole or the installation of new extraction equipment,<a href="http://www.lightcrusher.com/solutions/ballast-crusher-machine.html">ballast crusher machine</a>.A further object of the present invention is to provide a method for recovering sulfur from underwater formations whereby the subsidence and cracking of adjacent formations are minimized.It is another object of this invention to provide a method for obtaining samples of the sulfur as it exists without contaminating the sulfur or changing its physical state.
A further object is to minimize danger of contamination of surface waters by preserving the natural seal of the formations overlying the sulfur bearing limestone.A still further object of this invention is to provide a method for filling cavities from which sulfur has been removed without interfering with the extraction of sulfur in the area.These and other objects of this invention will be understood,<a href="http://www.lightcrusher.com/solutions/posho-mill-for-sale.html">posho mill for sale</a> from the following description of the invention taken with reference to the drawings wherein.Figure 1 is a sectional elevation of an offshore sulfur deposit from which sulfur is being removed in accordance with the method of the present invention; and Figure 2 is a view similar to Fig. 1, showing a modification wherein the hot water is introduced and the molten sulfur withdrawn through separate pipes.
Referring to the drawings, an underground offshore sulfur deposit 12 is shown surrounded by competent formation 13 known as caprock. The caprock 13, formed predominantly by carbonates and sulfates, is the matrix in which the sulfur occurs.While the water 1d may have any depth, the cuprock may be covered with several hundred feet of sediment and mud (not shown). The caprock itself may extend several hundreds of feet in thickness above and below the sulfur deposit 12. It normally rests on the salt body of a salt dome (not shown). The commercial surful deposit 12 may vary greatly in thickness and in depth. It may cover only part of the areal extent of the salt dome which might be more than one square mile.