| http://www.w3.org/ns/prov#value | - The final rubbled zone 9 in FIGURE 3 illustrates how the teachings of this invention may be used where, in a given situation, only a given degree of lifting of the overlying earth formations is permitted; thus the amount of oil that can be produced from a subterranean oil-bearing formation is increased, for example, by an amount such as four times more oil.
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