|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||860/201.5 ; 10/231.2 ; 10/231.3 ; 18/140.1|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 8 인용 특허 : 10|
To increase a yield of a hydrocarbon such as oil from a subsurface reserv, the reservoir is stimulated by pumping liquid gun propellant (LP) into the reservoir and igniting the LP. The LP is pumped into a packed-off region in a cased well; the depth of the packed-off region is selected to lie within the reservoir. The ignition of the LP causes a pressurization of the reservoir, thus fracturing the reservoir. The fracture increases a surface area through which the hydrocarbon can be extracted, and the heat from the ignition reduces the viscosity of the hy...
[ We claim:] [1.] A method of stimulating a subsurface hydrocarbon reservoir penetrated by a well, the method comprising:(a) preparing a liquid gun propellant which comprises both a fuel and an oxidizer;(b) injecting the liquid gun propellant into the well to a sufficient depth so that the liquid gun propellant reaches the subsurface hydrocarbon reservoir; and(c) igniting the liquid gun propellant in the subsurface hydrocarbon reservoir.