Pressure-Activated Backpressure Valve for Open Hole Tieback Completions
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Solution Overview
Problem
The resource recovery and fluid sequestration industries face challenges in efficiently and cost-effectively installing completions in boreholes, which are time-consuming and require precise installation to control flow and solids production.
Innovation Solution
An open hole tieback completion pressure-activated backpressure valve system, comprising a housing, a flapper, a lockout sleeve, and a seat that locks the sleeve in place after axial movement, allowing for delayed opening activation and reducing the need for intervention and dedicated wash-pipe trips, is introduced.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional completion installation methods are used, then flow control and solids production can be managed, but the process is time-consuming and costly
Solution Approach 1:
The backpressure valve is pre-configured with a locked flapper mechanism that automatically locks in the open position after a single trip. This preliminary setup eliminates the need for multiple intervention trips to adjust or reconfigure the valve, thereby reducing rig time and increasing completion installation speed.
Solution Approach 2:
The valve mechanism is designed to self-lock and self-regulate pressure without requiring external intervention. The flapper automatically locks in the open position once pressure activates it, and the system maintains this state without needing repeated manual adjustment or reconfiguration during subsequent trips.
2Reliability
If traditional completion methods are used, then flow control is achieved, but precision in installation is required which increases complexity
Solution Approach 1:
The complex adjustment and reconfiguration operations are extracted from the installation process. The valve is designed with a simplified single-trip activation mechanism where the flapper locks automatically upon pressure activation, removing the need for precise repeated adjustments and complex intervention procedures while maintaining reliable flow control.
3Productivity
If intervention-less completion is implemented, then rig time is reduced, but valve activation reliability must be maintained
Solution Approach 1:
The valve is pre-configured with a pressure-activated flapper mechanism that automatically locks in the open position during the initial trip. This preliminary setup ensures reliable activation without requiring subsequent intervention trips, maintaining both productivity and reliability by eliminating the need for repeated manual adjustments.
Data Source
AI summary
An open hole tieback completion pressure activated backpressure valve including a housing, a flapper articulated to the housing, a lock out sleeve axially movably disposed within the housing and operatively disposed in relation to the flapper, a seat operatively connected to the sleeve, and a profile that locks the sleeve in place after axial movement of the sleeve. A borehole system including an intervention-less closed lower completion system having delayed opening activation valves with a wellbore isolation valve uphole of a float shoe, and a casing tie-back completion including the valve. A method for completing an open hole including landing an object on a seat of an open hole tieback completion pressure activated backpressure valve, locking out the valve, releasing the object, and landing the same object on a well isolation valve of a lower completion.