Abstract: A frac plug has multiple conical-shape, radially outwardly expandable slip structures sandwiched between an actuator ring and a first ring. The smaller inner-diameter (ID) end of each slip structure extends into the larger ID end of the neighboring one. The actuator ring has a conical-shape portion extendable into the larger ID end of the neighboring slip structure. The first ring and actuator ring are movable towards each other to extend the conical-shape portion of the actuator ring into the neighboring slip structure thereby subsequently causing each slip structure extending its smaller ID end into the neighboring slip structure to expand the slip structure furthest to the actuator ring for engaging the slips thereon with a casing. The frac plug may comprise a seal element sandwiched between the actuator ring and a second ring, which are movable towards each other to compress and expand the seal element to engage the casing.

Abstract: A firing assembly for a wellbore perforating gun or other downhole tool includes: one or more casings connected together to form a firing head containment body, the firing head containment body is in fluid communication with a firing assembly that includes a click pressure firing module that allows the wellbore to be pressurized to high pressures required for pressure testing the well casing one or more times without firing the gun or actuating a certain downhole tool, and after a predetermined number of pressure increase events, allows the subsequent high pressure activation to reach the firing pin or actuation device and fire the gun or activate the tool without further activity from the surface other than applying the pressure.

Abstract: A firing assembly for a wellbore perforating gun or other downhole tool includes: one or more casings connected together to form a firing head containment body, the firing head containment body is in fluid communication with a firing assembly that includes a click pressure firing module that allows the wellbore to be pressurized to high pressures required for pressure testing the well casing one or more times without firing the gun or actuating a certain downhole tool, and after a predetermined number of pressure increase events, allows the subsequent high pressure activation to reach the firing pin or actuation device and fire the gun or activate the tool without further activity from the surface other than applying the pressure.

Abstract: A firing assembly for a wellbore perforating gun or other downhole tool includes: one or more casings connected together to form a firing head containment body, the firing head containment body is in fluid communication with a firing assembly that includes a click pressure firing module that allows the wellbore to be pressurized to high pressures required for pressure testing the well casing one or more times without firing the gun or actuating a certain downhole tool, and after a predetermined number of pressure increase events, allows the subsequent high pressure activation to reach the firing pin or actuation device and fire the gun or activate the tool without further activity from the surface other than applying the pressure.

Abstract: A bottom hole assembly for one trip perforating and treating a wellbore, the bottom hole assembly including: a tool body including an outer surface and an upper end; a fluid passage extending into the tool body from the upper end; a valve to provide (i) in one orientation fluid access from the fluid passage to an outlet port opening to the outer surface and (ii) in another orientation fluid access from the fluid passage to a perforating gun actuation fluid supply channel while sealing fluid access from the fluid passage to the outer surface; an annular sealing member encircling the outer surface below the outlet port; and a perforating gun carried below the resettable, annular sealing member and hydraulically actuable to detonate by fluid communication through the perforating gun actuation fluid supply channel.

Abstract: A bottom hole assembly for one trip perforating and treating a wellbore, the bottom hole assembly including: a tool body including an outer surface and an upper end; a fluid passage extending into the tool body from the upper end; a valve to provide (i) in one orientation fluid access from the fluid passage to an outlet port opening to the outer surface and (ii) in another orientation fluid access from the fluid passage to a perforating gun actuation fluid supply channel while sealing fluid access from the fluid passage to the outer surface; an annular sealing member encircling the outer surface below the outlet port; and a perforating gun carried below the resettable, annular sealing member and hydraulically actuable to detonate by fluid communication through the perforating gun actuation fluid supply channel.