Tubular Joint Integrating Sand Control and Zonal Isolation
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Solution Overview
Problem
In hydrocarbon production, large volumes of particulate material (such as sand) are often produced along with formation fluids, especially from fractured formations, which can impact the economic life of the well if not properly controlled.
Innovation Solution
A tubular joint with a perforated section, a filter section, and a packer is installed on a tubular string within a wellbore. The perforated section allows fluid communication with the surrounding area, the filter section includes a sand screen to filter fluids, and the packer isolates the filter section from the perforated section, enhancing sand control and fluid production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter assembly is installed to control sand production, then sand control is improved, but device complexity increases
Solution Approach 1:
The patent combines the filter assembly and packer into a single integrated tubular joint structure. The filter assembly is positioned within the tubular joint with the packer providing isolation between zones, eliminating the need for separate sand control and zonal isolation devices. This merging reduces overall device complexity while maintaining effective sand control through the filter assembly's screen structure.
2Reliability
If a packer is used to isolate zones, then zonal isolation is improved, but device complexity increases
Solution Approach 1:
The packer is integrated within the tubular joint structure, combining zonal isolation functionality with the sand control apparatus. The packer is positioned between the filter assembly and perforated section, providing reliable zonal isolation without requiring a separate isolation device, thus avoiding additional complexity.
3Reliability
If multiple separate devices are used for sand control and zonal isolation, then functional effectiveness is improved, but ease of operation deteriorates
Solution Approach 1:
The tubular joint integrates multiple functions (sand control filtering and zonal isolation) into a single deployable unit. The filter assembly and packer are pre-positioned within the tubular joint structure, allowing simultaneous installation of both functions in one operation rather than requiring separate deployment steps, thereby improving ease of operation while maintaining functional effectiveness.
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
The solution effectively isolates the filter section from the perforated section, forcing flow through the filter section for enhanced sand control, thereby reducing sand production and extending the economic life of the well.
Implementation Method 1
The filter section is proximate a second end and includes a filter assembly sized to filter fluid flowing into the bore via a second plurality of orifices from a second area proximate the filter section
Data Source
AI summary
A tubular joint installable on a tubular string disposable within a wellbore. The tubular joint may include includes a perforated section, a filter section, and a packer. The perforated section may be proximate a first end and may include a first plurality of orifices to allow fluid communication between a bore of the tubular joint and a first area surrounding the tubular joint proximate the perforated section. The filter section may be proximate a second end and may include a filter assembly sized to filter fluid flowing into the bore via a second plurality of orifices from a second area proximate the filter section. The packer may be disposed between the perforated section and the filter section and may be operable to isolate the first area from the second area when the tubular string is disposed within the well.