Abstract: A frac plug defines a central passage therethrough and is movable from an unset to a set position in a well casing. A single slip ring assembly is supported by the bottom shoe and a slip wedge is positioned in slidable relationship to the single slip ring assembly. A sealing element is supported by the slip wedge. A deformable ball seat is movable axially relative to the sealing element and the sealing element is expandable radially outwardly to engage and seal against the well casing upon the application of a force applied thereto by the deformable ball seat.

Abstract: A frac plug has a bottom shoe, a single slip ring supported by the bottom shoe, a slip wedge positioned above the slip ring and axially movable relative to the slip wedge, a radially outwardly expandable sealing element supported by the slip wedge and a deformable backup shoe fixed to the sealing element. The deformable backup shoe has a cap covering at least a portion of a top surface of the sealing element and an outer leg extending along at least a portion of an outer surface of the sealing element. A ball seat is insertable into the radially outwardly expandable sealing element.

Abstract: A treatment operation can be performed in a wellbore. A zonal isolation device, such as a frac plug, can be set within a tubing string in the wellbore to isolate one zone from another zone. The plug can include a slip system and a sealing element located circumferentially around an inner mandrel of the plug. The sealing element can include an outer shell that surrounds an inner core. The outer shell can be made from a material having a high Young's modulus, while the inner core can have a very low Young's modulus. The outer shell can prevent premature deformation and expansion of the sealing element during run in. The outer shell and inner core can wholly or partially disintegrate in a desired a period of time after setting of the plug in the tubing string.

Abstract: A fluid signal generator configured to produce fluid pulses in a fluid column of a wellbore are described. The fluid pulses represent data and/or other information to be transmitted from a downhole device, such as a fluid plug apparatus located within the borehole of the wellbore, to one or more other devices located away from the downhole device, including devices located above a surface of the wellbore. The fluid plug may be configured to provide a fluid seal between a first portion of the wellbore and a second portion of the wellbore prior to and during a fluid treatment procedure being performed on the wellbore.

Abstract: A frac plug defines a central passage therethrough and is movable from an unset to a set position in a well casing. A single slip ring assembly is supported by the bottom shoe and a slip wedge is positioned in slidable relationship to the single slip ring assembly. A sealing element is supported by the slip wedge. A deformable ball seat is movable axially relative to the sealing element and the sealing element is expandable radially outwardly to engage and seal against the well casing upon the application of a force applied thereto by the deformable ball seat.

Abstract: A frac plug has a bottom shoe, a single slip ring supported by the bottom shoe, a slip wedge positioned above the slip ring and axially movable relative to the slip wedge, a radially outwardly expandable sealing element supported by the slip wedge and a deformable backup shoe fixed to the sealing element. The deformable backup shoe has a cap covering at least a portion of a top surface of the sealing element and an outer leg extending along at least a portion of an outer surface of the sealing element. A ball seat is insertable into the radially outwardly expandable sealing element.

Abstract: A fluid signal generator configured to produce fluid pulses in a fluid column of a wellbore are described. The fluid pulses represent data and/or other information to be transmitted from a downhole device, such as a fluid plug apparatus located within the borehole of the wellbore, to one or more other devices located away from the downhole device, including devices located above a surface of the wellbore. The fluid plug may be configured to provide a fluid seal between a first portion of the wellbore and a second portion of the wellbore prior to and during a fluid treatment procedure being performed on the wellbore.

Abstract: A downhole tool subassembly having an outer sleeve with a first set of apertures extending from an inner bore through an external surface of the outer sleeve. The downhole tool subassembly further includes a pin coupled to the outer sleeve and extending inward from the inner bore of the outer sleeve, and an inner sleeve slidingly engaged with the with outer sleeve. The inner sleeve has a slot and a second set of apertures extending from a sleeve bore of the inner sleeve through an external surface of the inner sleeve, and is operable to restrict flow across the first set of apertures when the inner sleeve is in a first position. The pin engages the slot, which includes a first tracking path and a second tracking path. The slot also includes a first transition path extending from the first tracking path to the second tracking path.

Abstract: A diverter assembly includes a tubing segment and one or more sleeve members disposed therein. The tubing segment includes apertures that are selectively alignable with apertures of an inner sleeve disposed within the tubing segment. The tubing segment includes a series of stops (e.g., shear pins) to arrest movement of the first sleeve within the bore of the tubing segment. A first one or more ball seats are included in the first sleeve such that deployment of a first ball and pressurization of the well above the first ball causes a first set of shear pins to fail, thereby allowing the first sleeve to slide downhole to cause apertures of the sleeve to align with apertures of the tubing segment, thereby causing fluid to flow to an annulus between the tubing segment and wellbore wall.

Abstract: A downhole tool subassembly has an outer sleeve with a first set of apertures extending from an inner bore of the outer sleeve. An intermediate sleeve positioned is within the outer sleeve and defines an intermediate flow path extending from an inner bore of the intermediate sleeve to a cavity formed between the uphole portion of the outer sleeve and the downhole portion of the intermediate sleeve. An inner sleeve is positioned within the intermediate sleeve and has an external sealing portion that restricts flow across the intermediate flow path when the downhole tool is in a first configuration.

Abstract: A diverter assembly includes a tubing segment and one or more sleeve members disposed therein. The tubing segment includes apertures that are selectively alignable with apertures of an inner sleeve disposed within the tubing segment. The tubing segment includes a series of stops (e.g., shear pins) to arrest movement of the first sleeve within the bore of the tubing segment. A first one or more ball seats are included in the first sleeve such that deployment of a first ball and pressurization of the well above the first ball causes a first set of shear pins to fail, thereby allowing the first sleeve to slide downhole to cause apertures of the sleeve to align with apertures of the tubing segment, thereby causing fluid to flow to an annulus between the tubing segment and wellbore wall.

Abstract: A downhole tool subassembly has an outer sleeve with a first set of apertures extending from an inner bore of the outer sleeve. An intermediate sleeve positioned is within the outer sleeve and defines an intermediate flow path extending from an inner bore of the intermediate sleeve to a cavity formed between the uphole portion of the outer sleeve and the downhole portion of the intermediate sleeve. An inner sleeve is positioned within the intermediate sleeve and has an external sealing portion that restricts flow across the intermediate flow path when the downhole tool is in a first configuration.

Abstract: A downhole tool subassembly having an outer sleeve with a first set of apertures extending from an inner bore through an external surface of the outer sleeve. The downhole tool subassembly further includes a pin coupled to the outer sleeve and extending inward from the inner bore of the outer sleeve, and an inner sleeve slidingly engaged with the with outer sleeve. The inner sleeve has a slot and a second set of apertures extending from a sleeve bore of the inner sleeve through an external surface of the inner sleeve, and is operable to restrict flow across the first set of apertures when the inner sleeve is in a first position. The pin engages the slot, which includes a first tracking path and a second tracking path.

Abstract: An improved liner hanger system is disclosed. The improved liner hanger system comprises a liner hanger positioned within a casing. The liner hanger comprises a spiked portion having one or more spikes, wherein the spikes comprise a flat portion. At least one of the one or more spikes is expandable and the flat portion of each of the one or more spikes interfaces with the casing when the spike is in the expanded position. A liner is coupled to the liner hanger.

Abstract: A downhole tool for use in a well. A pumpable plug is used to urge bottom hole assemblies to a desired location in a well. The pumpable plug has a diameter greater than the maximum outer diameter of the casing in which the bottom hole assembly is to be located.

Abstract: An improved liner hanger system is disclosed. The improved liner hanger system comprises a liner hanger positioned within a casing. The liner hanger comprises a spiked portion having one or more spikes, wherein the spikes comprise a flat portion. At least one of the one or more spikes is expandable and the flat portion of each of the one or more spikes interfaces with the casing when the spike is in the expanded position. A liner is coupled to the liner hanger.

Abstract: A downhole tool for use in a well. The tool has a packer assembly and a pumpable plug associated with the packer assembly. The pumpable plug has a diameter greater than the maximum outer diameter of the packer assembly. The pumpable plug may be pumped through a casing having a diameter larger than that for which the packer assembly is designed and will urge the packer assembly through the large diameter casing into a smaller diameter casing for which the packer assembly is designed.

Abstract: A tool for releasably coupling a first tubing to a second tubing in a wellbore has a tubular mandrel configured to couple to and be carried into the wellbore by the first tubing. A collet ring is in an interior of the mandrel and has a plurality of collets to engage the second tubing. A releasing piston is carried in the interior of the mandrel to change between supporting the collet ring such that the collets can release from the profile and allowing the collet ring to lock such that the collets are locked in the profile.

Abstract: A tool for releaseably coupling a first tubing to a second tubing in a wellbore has a tubular mandrel configured to couple to and be carried into the wellbore by the first tubing. A collet ring is in an interior of the mandrel and has a plurality of collets to engage the second tubing. A releasing piston is carried in the interior of the mandrel to change between supporting the collet ring such that the collets can release from the profile and allowing the collet ring to lock such that the collets are locked in the profile.

Abstract: A tool for releaseably coupling a first tubing to a second tubing in a wellbore has a tubular mandrel configured to couple to and be carried into the wellbore by the first tubing. A collet ring is in an interior of the mandrel and has a plurality of collets to engage the second tubing. A releasing piston is carried in the interior of the mandrel to change between supporting the collet ring such that the collets can release from the profile and allowing the collet ring to lock such that the collets are locked in the profile.