Inflow Control Device Placement for Wellbore Flow Distribution
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Solution Overview
Problem
Existing completion screen joints with inflow control devices (ICDs) suffer from unbalanced fluid flow distribution, leading to underutilization of the sand control jacket, screen erosion, plugging issues, and inefficient stimulation fluid placement in unconsolidated formations, particularly in horizontal and deviated boreholes.
Innovation Solution
An intermediately-mounted inflow control device is positioned between two sand control jackets on a basepipe, allowing fluid communication from both jackets and featuring adjustable nozzles or orifices to control flow and create a desired pressure drop, enabling more even fluid distribution and preventing plugging by allowing bypass if one ICD fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If an inflow control device (ICD) is mounted at one end of a sand control jacket, then the ICD can control fluid flow through the screen, but the sand control jacket becomes underutilized and flow distribution becomes unbalanced
Solution Approach 1:
The sand control jacket is divided into multiple sections with screen elements distributed along the length of the basepipe. Multiple ICDs are positioned at different locations (e.g., first ICD at one end, second ICD at intermediate position, third ICD at other end) to control flow from different screen sections, thereby segmenting the flow control function across multiple points rather than concentrating it at a single location.
Solution Approach 2:
The ICDs are positioned at multiple axial locations along the basepipe rather than at a single end, transforming the flow control from a one-point control to a distributed multi-point control system. This spatial distribution along the length of the completion string enables more uniform utilization of the sand control jacket surface area.
2Device complexity
If an ICD is positioned at one end of the sand control jacket, then the structure is simple, but screen erosion occurs and plugging issues arise
Solution Approach 1:
Multiple ICDs are distributed at different axial positions along the basepipe, with each ICD controlling flow from a specific section of the sand control jacket. This segmentation of flow control responsibilities prevents any single ICD from handling excessive flow rates, thereby reducing localized erosion and plugging risks while maintaining structural simplicity through modular positioning.
3Device complexity
If a single ICD controls flow from the entire sand control jacket, then the device is simple, but stimulation fluid placement becomes inefficient
Solution Approach 1:
Multiple ICDs are positioned at different locations along the basepipe, each controlling flow from specific sections of the sand control jacket. This enables selective and distributed stimulation fluid placement across different zones of the wellbore, allowing for more efficient and targeted stimulation operations rather than concentrating all fluid injection at a single point.
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
This configuration enhances the utilization of the sand control jacket, reduces screen erosion, ensures more even stimulation fluid placement, and maintains production efficiency by distributing fluid flow evenly and allowing for effective treatment fluid dispersion.
Implementation Method 1
The nozzles restrict flow of screened fluid (i.e., inflow) from the screen jacket 60 to the device's inner space 86 to produce a pressure drop
Data Source
AI summary
A completion joint 100 has two sand control jackets 120A-B connected on each end of an intermediately-mounted inflow control device 130. Both jackets 120A-B communicate with a housing chamber 155 through dedicated open end-rings 140A-B. The basepipe's flow openings 118 are isolated from this housing chamber 155 by a sleeve 160 fitted with flow ports 170. The housing 150 is removable to allow access to the flow ports 170 for pinning to configure the ports 170 open or closed for a given implementation.