Rupture Disk(RD) safety circulating valve
The rupture disk (RD) safety circulating valve functions as both a safety valve and
circulating valve. The tool functions as a safety valve when the annulus pressure reaches
a predetermined value.
circulating valve. The tool functions as a safety valve when the annulus pressure reaches
a predetermined value.
Features and Benefits:
The tool is composed of three major sections: The power section consists of a power
mandrel case and rupture disk that is available for a wide range of pressure applications.
The rupture disk bursts at a predetermined pressure, allowing annulus pressure to be
applied to a differential area on the power mandrel. The power mandrel moves down,
first pushing the ball valve closed, and then opening a set of circulating ports.
The circulating section consists of a set of ports that are initially sealed by the power
mandrel. When the rupture disk bursts, the power mandrel moves down, exposing the
ports that allow communication between the annulus and work string.
The tool is composed of three major sections: The power section consists of a power
mandrel case and rupture disk that is available for a wide range of pressure applications.
The rupture disk bursts at a predetermined pressure, allowing annulus pressure to be
applied to a differential area on the power mandrel. The power mandrel moves down,
first pushing the ball valve closed, and then opening a set of circulating ports.
The circulating section consists of a set of ports that are initially sealed by the power
mandrel. When the rupture disk bursts, the power mandrel moves down, exposing the
ports that allow communication between the annulus and work string.