Abstract: A subsurface wellbore wiper deployment system includes a plug having an elongated body with an exterior surface; one or more exposed wipers extending away from the exterior surface; and one or more hidden wipers secured to the exterior surface and positioned underneath a removable sleeve; and a landing collar having a landing seat extending into an interior of the landing collar; the removable sleeve is to engage with the landing seat upon deployment of the plug; and the landing collar removes the removable sleeve to expose the one or more hidden wipers.

Abstract: A wiper dart includes one or more wiper elements disposed about a mandrel, each wiper element comprising a wiper cup that extends radially outward and rearwardly relative to the mandrel, and a nose assembly coupled to the mandrel. A drive element is disposed about the mandrel and includes a shoe and a cup coupled to the shoe. The cup extends radially outward and rearwardly from the shoe and exhibits a maximum diameter less than or equal to a maximum diameter of the one or more wiper elements, and the shoe provides at least one of axial and radial support to the cup.

Abstract: A packer assembly includes an elongate body, at least one sealing element disposed about the elongate body, and a shoulder disposed about the elongate body and positioned axially adjacent the at least one sealing element. A cover sleeve is coupled to an outer surface of the shoulder. An annular support shoe has a jogged leg, a lever arm, and a fulcrum section that extends between and connects the jogged leg to the lever arm. The jogged leg is received within a gap defined between the cover sleeve and the shoulder, and the lever arm extends axially over a portion of the sealing element.

Abstract: A wellbore isolation device includes an elongate body and a packer assembly disposed about the elongate body and including upper and lower sealing elements positioned axially between an upper shoulder and a lower shoulder, a spacer interposing the upper and lower sealing elements and having an annular body that provides an upper end, a lower end, and a recessed portion extending between the upper and lower ends. An upper cover sleeve is coupled to the upper shoulder, and a lower cover sleeve is coupled to the lower shoulder. An upper support shoe has a lever arm extending over the upper sealing element and a jogged leg received within a gap defined between the upper cover sleeve and shoulder. A lower support shoe has a lever arm extending over the lower sealing element and a jogged leg received within a gap defined between the lower cover sleeve and shoulder.

Abstract: A downhole plug and method of activating multiple downhole tools in a subterranean formation are disclosed. The plug includes a detachable ring that enables the plug to land in and engage at least two different seats, each seat having a different profile. This in turn enables the plug to activate at least two separate downhole devices, one in an upper downhole tool and one in a lower downhole tool. The ring separates from the plug once a certain pressure is reached in the wellbore enabling the plug to travel downhole from the upper tool to the lower tool to activate the device in the lower downhole tool.

Abstract: A wiper dart includes one or more wiper elements disposed about a mandrel, each wiper element comprising a wiper cup that extends radially outward and rearwardly relative to the mandrel, and a nose assembly coupled to the mandrel. A drive element is disposed about the mandrel and includes a shoe and a cup coupled to the shoe. The cup extends radially outward and rearwardly from the shoe and exhibits a maximum diameter less than or equal to a maximum diameter of the one or more wiper elements, and the shoe provides at least one of axial and radial support to the cup.

Abstract: A packer assembly includes an elongate body, an upper shoulder and a lower shoulder each disposed about the elongate body, and an upper sealing element and a lower sealing element each disposed about the elongate body and positioned axially between the upper and lower shoulders. A spacer interposes the upper and lower sealing elements and has an annular body that provides an upper end, a lower end, and a recessed portion extending between the upper and lower ends. A diameter of the annular body at the upper and lower ends is greater than the diameter at the recessed portion.

Abstract: In some embodiments, a subsurface wiping plug apparatus includes an internal bore that extends for less than a length of the apparatus. A ported case encloses internal components of the apparatus such that each port of the case is configured to couple the internal bore to an external side of the case. A plug capsule is coupled to an end of the ported case. The plug capsule contains an internal wiping plug that is releasable by internal pressure.

Abstract: A wellbore isolation device includes an elongate body and a packer assembly disposed about the elongate body and including upper and lower sealing elements positioned axially between an upper shoulder and a lower shoulder, a spacer interposing the upper and lower sealing elements and having an annular body that provides an upper end, a lower end, and a recessed portion extending between the upper and lower ends. An upper cover sleeve is coupled to the upper shoulder, and a lower cover sleeve is coupled to the lower shoulder. An upper support shoe has a lever arm extending over the upper sealing element and a jogged leg received within a gap defined between the upper cover sleeve and shoulder. A lower support shoe has a lever arm extending over the lower sealing element and a jogged leg received within a gap defined between the lower cover sleeve and shoulder.

Abstract: A packer assembly includes an elongate body, at least one sealing element disposed about the elongate body, and a shoulder disposed about the elongate body and positioned axially adjacent the at least one sealing element. A cover sleeve is coupled to an outer surface of the shoulder. An annular support shoe has a jogged leg, a lever arm, and a fulcrum section that extends between and connects the jogged leg to the lever arm. The jogged leg is received within a gap defined between the cover sleeve and the shoulder, and the lever arm extends axially over a portion of the sealing element.

Abstract: A downhole plug and method of activating multiple downhole tools in a subterranean formation are disclosed. The plug includes a detachable ring that enables the plug to land in and engage at least two different seats, each seat having a different profile. This in turn enables the plug to activate at least two separate downhole devices, one in an upper downhole tool and one in a lower downhole tool. The ring separates from the plug once a certain pressure is reached in the wellbore enabling the plug to travel downhole from the upper tool to the lower tool to activate the device in the lower downhole tool.

Abstract: A packer assembly includes an elongate body, an upper shoulder and a lower shoulder each disposed about the elongate body, and an upper sealing element and a lower sealing element each disposed about the elongate body and positioned axially between the upper and lower shoulders. A spacer interposes the upper and lower sealing elements and has an annular body that provides an upper end, a lower end, and a recessed portion extending between the upper and lower ends. A diameter of the annular body at the upper and lower ends is greater than the diameter at the recessed portion.

Abstract: In some embodiments, a subsurface wiping plug apparatus includes an internal bore that extends for less than a length of the apparatus. A ported case encloses internal components of the apparatus such that each port of the case is configured to couple the internal bore to an external side of the case. A plug capsule is coupled to an end of the ported case. The plug capsule contains an internal wiping plug that is releasable by internal pressure.

Abstract: Improved darts and methods of using these darts in subterranean wells are disclosed. The improved dart comprises a foam portion and a rubber portion coupled to the foam portion. A dart nose is coupled to at least one of the foam portion and the rubber portion. The foam portion and the rubber portion are configured to interface with an inner surface of at least one of a well bore wall, a pipe, and a casing string.

Abstract: An object for wiping a subterranean casing is described herein. The object may include an inner core with a first width. The ball may also include a deformable layer surrounding the inner core. The deformable layer may have a second width. The first width may be smaller than a diameter of at least one baffle within the subterranean casing. The second width may be larger than or equal to the largest inner diameter of the subterranean casing.