Well Completion Tool String With Selective Ports
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Solution Overview
Problem
Well completion processes are resource-intensive and time-consuming due to the need for multiple interventions to isolate zones, set packers, and manage fluid flow in boreholes, delaying production start-up.
Innovation Solution
A completion system and method featuring a tool string with selectively openable ports, integrated screens for fluid filtration, and packers that isolate zones and allow fluid communication without intervention, enabling efficient zone isolation and treatment during a single run into the borehole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple interventions are used to isolate zones, set packers, and manage fluid flow, then zone isolation and fluid control are achieved, but the completion process becomes time-consuming and resource-intensive
Solution Approach 1:
The patent combines multiple functions (zone isolation via packers, fluid flow control via selectively openable ports, and fluid filtration via screens) into a single integrated tool string. This allows all operations to be performed during one intervention, eliminating the need for multiple separate trips into the borehole and significantly reducing completion time while maintaining reliable zone isolation and fluid control.
Solution Approach 2:
The tool string is designed as a multi-functional device that simultaneously performs zone isolation, selective fluid communication, and filtration. The packers provide sealing, the ports enable selective opening/closing for different zones, and the screens filter fluids—all within a single tool assembly that can be deployed in one operation.
2Reliability
If multiple separate operations are performed for well completion, then each function is executed properly, but the number of interventions increases and operational efficiency decreases
Solution Approach 1:
The invention merges multiple separate completion operations into a single integrated tool string deployment. The packers, ports, and screens work together in one system, allowing zone isolation, fluid control, and filtration to be achieved simultaneously during one intervention, thereby improving operational efficiency without compromising function execution quality.
Solution Approach 2:
The tool string is pre-configured with packers, ports, and screens in their initial positions before deployment. The packers are positioned to seal against the borehole wall, the ports are initially closed and can be selectively opened, and the screens are in place to filter fluids. This preliminary configuration allows all functions to be ready for immediate operation upon single deployment.
3Reliability
If traditional completion methods are used, then zone treatment is achieved, but resource consumption increases due to multiple tool runs
Solution Approach 1:
The patent consolidates multiple completion functions into a single tool string that performs zone isolation, fluid control, and filtration simultaneously. This eliminates the need for multiple separate tool runs, thereby reducing resource consumption including time, equipment deployment costs, and operational resources while maintaining effective zone treatment.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates efficient zone isolation and treatment, reducing the need for multiple interventions and accelerating the start of production by allowing fluid communication and treatment between zones and the tool string without additional steps, thereby improving operational efficiency.
Implementation Method 1
a plurality of packers configured to seal against a borehole wall to isolate a plurality of zones
Implementation Method 2
a plurality of screens in operable communication with the plurality of ports configured to filter fluid flowing between the zones and an inside of the tool string through the plurality of ports
Data Source
AI summary
A completion system includes, a tool string having, a plurality of packers configured to isolate a plurality of zones along a borehole that the tool string is positioned within. A plurality of ports along the tool string are configured to be selectively opened and a plurality of screens in operable communication with the plurality of ports are configured to filter fluid flowing between the zones and an inside of the tool string through the plurality of ports. The tool string is also configured to be run into the borehole, the plurality of packers set, the plurality of ports selectively opened, and fluid to flow between the plurality of zones and an inside of the tool string without intervention.