Abstract: A parking enforcement device can be secured to a surface adjacent to the area designated as NO PARKING. The enforcement device can include an elongated hollow body, a window provided to the tubular body, a battery, an internal frame assembly disposed inside of the elongated hollow body, and a camera disposed inside of the elongated hollow body. The internal frame assembly defines a cavity in which the battery is located. A camera support pole extends vertically upwards from the internal frame assembly. The camera is secured to the camera support pole and located vertically along the camera support pole such that the camera views outward through the window. A solar panel can be provided atop the parking enforcement device to recharge the battery.

Abstract: A device for coupling a propulsor to a marine vessel. The device includes a mounting bracket configured for attachment to the marine vessel. A support frame has a carriage and is configured for the propulsor to be coupled thereto, where the carriage is configured to slidably engage with the mounting bracket into a fixed position. A member is manually engageable to prevent the carriage from sliding out of the fixed position. The propulsor is coupled to the marine vessel by sliding the carriage into the fixed position and engaging the member, where the propulsor is operable to propel the marine vessel in water when the carriage is in the fixed position, and where the propulsor is configured for decoupling from the marine vessel by disengaging the member and sliding the carriage out of engagement with the mounting bracket.

Abstract: A downhole wellbore system is provided, comprising one or more downhole sleeves run on a liner; and an intervention tool deployable into the liner. The intervention tool is reciprocateable within the line and one or more downhole sleeves between any one or more positions selected from the group consisting of: downhole sleeve opening position, downhole sleeve closing position, pull uphole position, push downhole position, and setting in a blank section of the liner position. A method is further provided for manipulating an intervention tool in a liner comprising one or more downhole sleeves. The method comprises the steps of deploying an intervention tool into the liner and reciprocating the intervention tool between one or more positions selected from the group consisting of: downhole sleeve opening position, downhole sleeve closing position, pull uphole position, push downhole position, and setting in a blank section of the liner position.

Abstract: A device is provided for positively locating within a profile, wherein the device includes one or more radially resilient locator mechanisms; one or more slips; one or more packing elements; and a stopping mechanism; wherein the one or more locator mechanisms are radially expandable to locate within the profile and wherein the stopping mechanism prevents engagement of the one or more slips and the one or more packing elements unit the one or more locator mechanisms are located in the profile. A method is also provided for applying downhole isolation.

Abstract: A method is provided for multistage isolation and fluid treatment of a borehole, in which a first frac valve tool and a second frac valve tool are provided, a first packer is mounted downstream from the first frac valve tool, a second packer is mounted between the first frac valve tool and the second frac valve tool, a third packer is mounted upstream from the second frac valve tool, at least one of the first, second and third packers being a hydraulic set packer having a single packing element, the first frac valve tool being moveable between a closed and an open position, the second frac valve tool moveable between a closed and an open position; running the liner into a wellbore; hydraulically setting the single element packers; conveying means for moving the first frac valve tool to the open position; and forcing stimulation fluid out through the first frac sleeve tool.

Abstract: A method is provided for multistage isolation and fluid treatment of a borehole, in which a first frac valve tool and a second frac valve tool are provided, a first packer is mounted downstream from the first frac valve tool, a second packer is mounted between the first frac valve tool and the second frac valve tool, a third packer is mounted upstream from the second frac valve tool, at least one of the first, second and third packers being a hydraulic set packer having a single packing element, the first frac valve tool being moveable between a closed and an open position, the second frac valve tool moveable between a closed and an open position; running the liner into a wellbore; hydraulically setting the single element packers; conveying means for moving the first frac valve tool to the open position; and forcing stimulation fluid out through the first frac sleeve tool.

Abstract: An activation tool is provided for use in a well isolation and stimulation string, The activation tool has a stationary seat for receiving a ball deployed down the string, a stationary inner body, a stationary outer body and a moving sleeve positioned between the stationary inner and stationary outer bodies and movable from an open position to a closed position by force of the ball against the seat.

Abstract: A downhole wellbore system is provided, comprising one or more downhole sleeves run on a liner; and an intervention tool deployable into the liner. The intervention tool is reciprocateable within the line and one or more downhole sleeves between any one or more positions selected from the group consisting of: downhole sleeve opening position, downhole sleeve closing position, pull uphole position, push downhole position, and setting in a blank section of the liner position. A method is further provided for manipulating an intervention tool in a liner comprising one or more downhole sleeves. The method comprises the steps of deploying an intervention tool into the liner and reciprocating the intervention tool between one or more positions selected from the group consisting of: downhole sleeve opening position, downhole sleeve closing position, pull uphole position, push downhole position, and setting in a blank section of the liner position.

Abstract: A single element hydraulic open hole packer is provided. A method is provided for multistage isolation and fluid treatment of a borehole, in which a first frac valve tool and a second frac valve tool are provided, a first packer is mounted downstream from the first frac valve tool, a second packer is mounted between the first frac valve tool and the second frac valve tool, a third packer is mounted upstream from the second frac valve tool, at least one of the first, second and third packers being a hydraulic set packer having a single packing element, the first frac valve tool being moveable between a closed and an open position, the second frac valve tool moveable between a closed and an open position; running the liner into a wellbore; hydraulically setting the single element packers; conveying means for moving the first frac valve tool to the open position; and forcing stimulation fluid out through the first frac sleeve tool.

Abstract: An intervention tool is provided having one or more packing elements; said device being moveable between a first position in which the device is positively locatable within a profile, and a second position wherein the device is settable in a blank casing that lacks a profile, wherein movement between the first position and the second position is controlled by axial movement of the intervention tool. A device is further provided for positively locating within a profile, wherein said device comprises one or more locator mechanisms; one or more slips; one or more packing elements; and a stopping mechanism; wherein said one or more locator mechanisms are locatable within said profile and wherein said stopping mechanism prevents engagement of said one or more slips and said one or more packing elements unit said one or more locator mechanisms are located in the profile.

Abstract: An activation tool is provided for use in a well isolation and stimulation string, The activation tool has a stationary seat for receiving a ball deployed down the string, a stationary inner body, a stationary outer body and a moving sleeve positioned between the stationary inner and stationary outer bodies and movable from an open position to a closed position by force of the ball against the seat. A first stage frac valve tool is also provided having a stationary outer body and an internal piston movable between an closed and an open position. A singular tool is further provided having a float shoe, an activation tool and integrally built with the float shoe and a first stage frac integrally built with the activation tool. A cased hole packer is further provided having an integral setting tool.

Abstract: In a first aspect, a frac valve tool is taught, said tool comprising one or more ports a sleeve movable between a closed position in which the sleeve prevents fluid flow through said one or more ports and an open position in which the sleeve allows fluid flow through said one or more ports and a ball receiving seat removably connected to the sleeve wherein receipt of a ball on the ball receiving seat moves said seat and said sleeve from closed to open positions. In a second aspect, a frac valve tool is taught, said tool comprising a ball receiving seat removably received within said tool, said seat comprising a seating profile for receiving a ball; wherein said seating profile matches a radius of said ball to nondeformably grip said ball.

Abstract: A single element hydraulic open hole packer is provided. A method is provided for multistage isolation and fluid treatment of a borehole, in which a first frac valve tool and a second frac valve tool are provided, a first packer is mounted downstream from the first frac valve tool, a second packer is mounted between the first frac valve tool and the second frac valve tool, a third packer is mounted upstream from the second frac valve tool, at least one of the first, second and third packers being a hydraulic set packer having a single packing element, the first frac valve tool being moveable between a closed and an open position, the second frac valve tool moveable between a closed and an open position; running the liner into a wellbore; hydraulically setting the single element packers; conveying means for moving the first frac valve tool to the open position; and forcing stimulation fluid out through the first frac sleeve tool.