Wet-mate retrievable filter system
AssigneeBaker Hughes Oilfield Operations LLC
InventorsYuh Loh, Zhi Yong He, Tony Rocco Hepp
Life of this patent
Estimating the term…
Abstract
A mandrel in production tubing within a well has a side pocket with an inlet port for connection to an upper control line segment that extends upward alongside the production tubing. An outlet port is below the inlet port for connection to a lower control line segment extending below the pocket. A filter assembly is lowered through the production tubing into the pocket. A valve at a lower end of the pocket is movable from a closed position closing the outlet port to an open position opening the outlet port. A probe mounted to a lower end of the filter assembly engages and pushes the valve from the closed position to the open position while the filter assembly is being seated in the pocket.
Claims13
An apparatus for injecting a fluid into a well, comprising:
- a pocket having a longitudinal axis and adapted to be mounted in a string of production tubing in a well;
- a mandrel for connection into the production tubing, the mandrel having a main bore for registering with an interior of the production tubing, the pocket being in the mandrel alongside the main bore;
- an inlet port extending into the pocket for connection to an upper control line segment that extends upward alongside the production tubing;
- an outlet port below the inlet port for connection to a lower control line segment extending below the pocket;
- a filter assembly adapted to be lowered through the production tubing into the pocket, the filter assembly having a filter element for filtering fluid flowing from the inlet port to the outlet port;
- a valve element at a lower end of the pocket, the valve element being movable relative to the pocket between a closed position closing the outlet port and an open position opening the outlet port;
- and
- a probe mounted to a lower end of the filter assembly that engages and moves the valve element from the closed position to the open position while the filter assembly is being seated in the pocket, the probe comprising an outer tube that is biased downward relative to an inner tube and circumscribes the outlet port to define a barrier to well fluid in the pocket.
An apparatus for injecting a fluid into a well, comprising:
- a mandrel having a pocket and a longitudinal axis;
- a control line inlet port extending laterally through the mandrel to the pocket for connecting to an upper control line segment;
- a manifold at a lower end of the pocket, the manifold having a manifold flow passage for connection to a lower control line segment;
- a valve element in the manifold flow passage, the valve element being axially movable relative to the manifold between a closed upper position, blocking communication of well fluid in the pocket with the manifold flow passage, and an open lower position;
- a filter assembly adapted to be lowered into and retrieved from the pocket, comprising;
- a filter housing having a housing bore containing a filter element, the filter housing having a filter inlet port that allows communication between the housing bore and the control line inlet port when the filter assembly lands in the pocket;
- a probe assembly extending below the filter housing that pushes the valve element from the closed upper position to the open lower position in response to downward movement of the filter housing as the filter assembly is being lowered into the pocket, the probe assembly having a probe passage communicating control line fluid from the upper control line segment and the housing bore through the manifold flow passage and into the lower control line segment;
- and
- a manifold seal between the probe assembly and the manifold that blocks entry of well fluid contained in the pocket from entering the manifold flow passage while the valve element is moving from the closed position to the open position.
Dependencies are inferred from the claim text.