A portion of a wellbore is put into communication or is isolated by selectively applying an axial or rotational force downhole. The axial force moves a shifting sleeve and deployment sleeve from an initial position to an opening position causing a valve element to move into an open configuration and allowing communication to the portion of the wellbore. The shifting sleeve is returned to the initial position and separated from the deployment sleeve, which is anchored to a retraction sleeve adjacent the valve element. Threads on the shifting and retraction sleeves become engaged when the deployment sleeve is moved to the opening position. The retraction sleeve is rotated by rotating the shifting sleeve, threaded engagement with the rotating retraction sleeve draws the deployment sleeve away from the valve element, and allows the valve element to move to a closed configuration.

A portion of a wellbore is put into communication or is isolated by selectively applying an axial or rotational force downhole. The axial force moves a shifting sleeve and deployment sleeve from an initial position to an opening position causing a valve element to move into an open configuration and allowing communication to the portion of the wellbore. The shifting sleeve is returned to the initial position and separated from the deployment sleeve, which is anchored to a retraction sleeve adjacent the valve element. Threads on the shifting and retraction sleeves become engaged when the deployment sleeve is moved to the opening position. The retraction sleeve is rotated by rotating the shifting sleeve, threaded engagement with the rotating retraction sleeve draws the deployment sleeve away from the valve element, and allows the valve element to move to a closed configuration.

A strong connection that ensures alignment between components and which is capable of being used for high-pressure applications. The connection is held together with one or more pins that are positioned tangentially along the interfacing plane of the components and which pins are positioned such that they are placed in sheer along a significant portion of their length instead of merely across their diameter. The pins can be held in place with one or more structures, which can include threaded fasteners, to prevent the pins from being inadvertently removed.

A hydraulic fracturing pump system includes an electric powered hydraulic fracturing pump positioned on a support structure. The system also includes a suction stabilizer/dampener coupled to a suction end of the pump. The system further includes a compressed gas supply, fluidly coupled to the suction stabilizer/dampener, and positioned on the support structure. The system also includes a flow path between the suction stabilizer/dampener and the compressed gas supply, the flow path including at least one valve and at least one regulator configured to control flow from the compressed gas supply to the suction stabilizer/dampener.

In a dart for a downhole device according to the present invention, a ball is formed of a first degradable material having a first degradation rate, a mandrel is formed of a second degradable material having a second degradation rate lower than the first degradation rate, and a sleeve is formed of the second degradable material or a third degradable material having a third degradation rate lower than the second degradation rate.

In a dart for a downhole device according to the present invention, a ball is formed of a first degradable material having a first degradation rate, a mandrel is formed of a second degradable material having a second degradation rate lower than the first degradation rate, and a sleeve is formed of the second degradable material or a third degradable material having a third degradation rate lower than the second degradation rate.

Pressure-activated valve assemblies and methods to remotely activate a valve are disclosed. A pressure-activated valve assembly includes a valve, a latch mechanism configured to shift the valve to an open position, and a pressure-activated indexing mechanism that is initially engaged to the latch mechanism. The pressure-activated indexing mechanism is initially in an unarmed mode. After the pressure-activated indexing mechanism is in an armed mode, applying at least one cycle of threshold pressure to the pressure-activated indexing mechanism disengages the latch mechanism to shift the valve to the open position. The pressure-activated valve assembly also includes a remote-activated downhole system configured to receive an activation pressure signal having a signature profile, and in response to receiving the activation pressure signal, arm the pressure-activated indexing mechanism.

A downhole system for multistage fracturing having a first cluster of valves, and a second cluster of valves downhole from the first cluster. Each of the first and second cluster of valves has a frac valve. At least one of the first and the second cluster of valves has a flex valve. A single plugging device is used to open all of the valves in the second cluster, but leaves all valves in the first cluster closed.

The present invention relates to a downhole apparatus and a valve arrangement for a downhole apparatus having a tubular body having first and second ports in a wall thereof; and a method of operating a valve arrangement of a downhole apparatus. The valve arrangement has at least one locked configuration and the first port provides fluid communication with a tool or a device which is a sand control element having at least one fluid deformable device. The present invention also provides a method of setting a sand control completion, extending the sand control filter element thereof to a wellbore surface and isolating the reservoir from an upper portion of the wellbore.

The present invention relates to a downhole apparatus and a valve arrangement for a downhole apparatus having a tubular body having first and second ports in a wall thereof; and a method of operating a valve arrangement of a downhole apparatus. The valve arrangement has at least one locked configuration and the first port provides fluid communication with a tool or a device which is a sand control element having at least one fluid deformable device. The present invention also provides a method of setting a sand control completion, extending the sand control filter element thereof to a wellbore surface and isolating the reservoir from an upper portion of the wellbore.