Method and apparatus for fluid removal from a container
AssigneeExplosives Limited
InventorDavid A. Metcalfe
Life of this patent
Estimating the term…
Abstract
A method and apparatus for removing fluid from a container using a conventional shaped charge such as those used in well perforation; the charge being spaced from the container wall, and producing an explosive jet, the explosive jet directed by a diffuser disk to provide a vent or drain.
Claims42
A charge assembly for removing a fluid from a container, the charge assembly comprising:
- (a) a conical shaped charge, the conical shaped charge configured to pierce the container at a point location with an explosive jet and to be initiated by a user;
- (b) a stand-off spacer configured to receive the conical shaped charge and position the shaped charge at a distance from the container, the stand-off spacer having a spacer bore configured to allow passage of the explosive jet from the conical shaped charge to the container upon initiation of the conical shaped charge;
- and
- (c) a retainer attached to the spacer and having attachment means for attaching the retainer and the container, the attachment means having a retainer bore configured to allow passage of the explosive jet from the conical shaped charge to the container upon initiation of the conical shaped charge.
A charge assembly for removing a fluid from a container with a conical shaped charge for providing an explosive jet to a point located on the container, the charge assembly comprising:
- (a) a diffuser disk locatable against the container;
- (b) a stand-off spacer configured to receive the conical shaped charge and position the conical shaped charge at a distance from the container wall, the stand-off spacer having a central spacer bore;
- (c) a retainer attached to the stand-off spacer and having a ring magnet configured to attach to the container's wall for attaching the charge assembly to the container, the ring magnet having a central retainer bore,
- wherein the charge assembly is configured to allow passage of an explosive jet from the conical shaped charge to the container upon initiation of the conical shaped charge to perforate the container by penetration of the container by the explosive jet at the point.
A method of removing a fluid from a container with a conical shaped charge configured to pierce the container at a point on the container with an explosive jet, the container having an upper portion and a lower portion, the method comprising the steps of:
- (a) positioning a lower such conical shaped charge proximate the container;
- (b) initiating the lower such conical shaped charge to produce an explosive jet, the explosive jet directed toward a point on the container, wherein the container is perforated to form a small lower hole in the lower portion of the container with a perforation sized to provide controlled evacuation of fluid from the container;
- and
- (c) allowing the fluid to flow from the container in a controlled way through the small lower hole.
A charge assembly for removing a fluid from a container, the charge assembly comprising:
- (a) a conical shaped charge configured to pierce the container at a point on the container with an explosive jet, the shaped charge configured to pierce the container and to be initiated by a user;
- (b) a stand-off spacer configured to receive the shaped charge and position the shaped charge at a distance from the container, the stand-off spacer having a spacer bore configured to allow passage of an explosive jet from the shaped charge to the container upon initiation of the shaped charge;
- and
- (c) a retainer attached to the spacer and having attachment means for attaching the retainer and the container, the attachment means having a retainer bore configured to allow passage of the explosive jet from the shaped charge to the container upon initiation of the shaped charge;
- and
- (d) further comprising a diffuser disk locatable against the container in the retainer bore.
A method of removing a fluid from a container with a conical shaped charge configured to pierce the container at a point on the container with an explosive jet, the container having an upper portion and a lower portion, the method comprising the steps of:
- (a) positioning a lower shaped charge proximate the container;
- (b) initiating the lower shaped charge to produce an explosive jet, the explosive jet directed toward the container, wherein the container is perforated to form a lower hole in the lower portion of the container;
- (c) allowing the fluid to flow from the container through the lower hole;
- and
- (d) further comprising the step of diffusing the explosive jet before it strikes the container.
A method of removing a fluid from a container with a conical shaped charge configured to pierce the container at a point on the container with an explosive jet, the container having an upper portion and a lower portion, the method comprising the steps of:
- (a) positioning an upper shaped charge design proximate the container;
- (b) initiating the upper shaped charge to produce an explosive jet, the explosive jet directed toward the container, wherein the container is perforated to form an upper hole in the upper portion of the container;
- (c) allowing the fluid to flow from the container through the lower hole;
- and
- (d) further comprising the step of diffusing the explosive jet before it strikes the container.
Dependencies are inferred from the claim text.