Method and apparatus for sleeving a borehole
OwnerJeffrey S. Senulesinventor
Life of this patent
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Abstract
A novel method and device for sealing a borehole that is filled either partially or completely with water. A water-permeable sleeve is capable of expanding to the diameter of the borehole, and is constructed of a material that will allow the passage of water in and out throughout its length, with a series of apertures, but will prevent an explosive charge from escaping. Once the sleeve is in place, a hose, to introduce the explosive charge, is lowered through the sleeve to bottom of the borehole.
Claims16
An apparatus for sleeving a water-filled borehole comprising:
- a water-permeable woven borehole sleeve having a first end and an open second end, said sleeve providing at least about 70% coverage but having apertures throughout, wherein said sleeve receives an explosive charge in a direction from the first end to the second end;
- and
- a structure selected from the group consisting of a rigid borehole casing or one or more poles, adapted to guide the placement of the sleeve in the borehole.
An apparatus for sleeving a water-filled borehole, comprising:
- a water-permeable nonwoven borehole sleeve having a first end and an open second end, said sleeve providing at least about 25% coverage but having apertures throughout;
- and
- a structure selected from the group consisting of a rigid casing or one or more poles, adapted to guide the placement of the sleeve in the borehole.
A method for sleeving a water-filled borehole, comprising the steps of:
- (a) attaching a first end of a water-permeable woven fabric borehole sleeve, providing at least about 70% coverage and having a thickness of at least about 5 mil to one or more poles or to a rigid casing;
- (b) affixing a second end of the sleeve to a restraining mechanism located above the borehole surface;
- (c) pushing the first sleeve end into the length of the borehole;
- (d) placing a loading hose throughout the length of the sleeve to a bottom of the borehole;
- and
- (e) loading the sleeve with an explosive charge using the loading hose, causing expansion of the sleeve to a diameter of the borehole and displacement of an amount of water.
A method for sleeving a water-filled borehole, comprising the steps of:
- (a) attaching a first end of a water-permeable nonwoven fabric borehole sleeve, providing at least about 25% coverage and having a thickness of at least about 0.5 mil to one or more poles or to a rigid casing;
- (b) affixing a second end of the sleeve to a restraining mechanism located above the borehole surface;
- (c) pushing the first sleeve end into the length of the borehole;
- (d) placing a loading hose throughout the length of the sleeve to a bottom of the borehole;
- and
- (e) loading the sleeve with an explosive charge using the loading hose, causing expansion of the sleeve to a diameter of the borehole and displacement of an amount of water.
An apparatus for sleeving a water-filled borehole comprising:
- a water-permeable woven borehole sleeve having a first end and an open second end, said sleeve providing at least about 70% coverage but having apertures throughout, wherein the sleeve is at least about 5 mil in thickness and five or more feet longer than the depth of the borehole;
- and
- a structure selected from the group consisting of a rigid borehole casing or one or more poles, adapted to guide the placement of the sleeve in the borehole.
An apparatus for sleeving a water-filled borehole comprising:
- a water-permeable woven borehole sleeve having a first end and an open second end, said sleeve providing at least about 70% coverage but having apertures throughout, wherein said sleeve is capable of expanding to the diameter of the borehole;
- and
- a structure selected from the group consisting of a rigid borehole casing or one or more poles, adapted to guide the placement of the sleeve in the borehole.
An apparatus for sleeving a water-filled borehole comprising:
- a water-permeable woven borehole sleeve having a first end and an open second end, said sleeve providing at least about 70% coverage but having apertures throughout, wherein said sleeve is further attached to a restraining mechanism located above the borehole surface;
- and
- a structure selected from the group consisting of a rigid borehole casing or one or more poles, adapted to guide the placement of the sleeve in the borehole.
Dependencies are inferred from the claim text.