Severe service industrial valves having at least one valve ball and seat that can be repaired or replaced while the valve remains connected in-line with inlet and outlet pipe lines.

In at least one embodiment, a valve removal (VR) system for an oilfield equipment includes a VR plug having a first surface and a second surface. The VR system includes a bushing to be removably associated with the first surface. The bushing is to extend, at least partly, beyond the second surface of the VR plug. The bushing is also to contact an inner surface of a valve of the oilfield equipment and to prevent the second surface from contacting the inner surface of the valve. The VR system includes a guiding rod to be associated with the VR plug to support guidance of the VR plug through the valve of the oilfield equipment. The guiding rod is also to be disassociated from the VR plug to support removal of the guiding rod from the valve with the VR plug remaining in the oilfield equipment.

A valve replacement device is disclosed. An example valve replacement device includes a body configured to thread onto a valve, and an insertion tube movable through the body. A seal is provided between the insertion tube and the body. The seal enables the insertion tube to be moved through the body while at least partially retaining a fluid within a portion of the body. A balloon is provided on the insertion tube. The balloon is configured to be inflated and deflated through the insertion tube. The balloon is inflated to retain a fluid within the tank while the existing valve is removed from the tank and replaced. The balloon is deflated and removed after replacement of the existing valve.

A tubing retrievable safety valve assembly and related methods are disclosed herein. The assembly includes a primary flapper, a secondary flapper, a flow tube, and a protective sleeve. The flow tube is shiftable between a downhole position that holds the primary flapper in an open position and an uphole position that allows the primary flapper to move to a closed position. The protective sleeve, when positioned in an uphole position, holds the secondary flapper valve in an open position. The protective sleeve is shiftable to a downhole position to allow the secondary flapper to move to a closed position, for example, upon failure of the primary flapper.

A tubing retrievable safety valve assembly and related methods are disclosed herein. The assembly includes a primary flapper, a secondary flapper, a flow tube, and a protective sleeve. The flow tube is shiftable between a downhole position that holds the primary flapper in an open position and an uphole position that allows the primary flapper to move to a closed position. The protective sleeve, when positioned in an uphole position, holds the secondary flapper valve in an open position. The protective sleeve is shiftable to a downhole position to allow the secondary flapper to move to a closed position, for example, upon failure of the primary flapper.