METHANE ENHANCED LIQUID PRODUCTS RECOVERY FROM WET NATURAL GAS
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United States of America Patent
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Issued Date -
Oct 30, 2014
app pub date -
Apr 28, 2014
filing date -
Apr 26, 2013
priority date (Note) -
Abandoned
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Abstract
A process is described for enhancing the yield of liquid products from natural gas from at least one extraction well. This process is achieved by injecting methane at a higher pressure than the rock pressure in at least one injection well site. The methane serves to maintain the pressure of gas in the formation, while also promoting the flow of liquid products away from the injection well and towards a collection well. The net effect is higher net yield of liquid products (referred to as “Y-Grade” liquids) from that well, with lower net yield of non-condensable methane. Because methane is naturally present in natural gas, the gas remaining underground is still a valuable product that can be trapped in the future. The use of the dry gas as the fracturing medium reduces or potentially eliminates the need to use water in fracturing process.
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