Completion String Hydraulic Release for Precise Wellbore Placement
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Solution Overview
Problem
Existing completion methods in the resource recovery and fluid sequestration industries, such as shear up or shear down processes, leave efficiencies unaddressed and require separate manipulation of lower and upper completions, which can be inefficient.
Innovation Solution
A completion string configuration utilizing a hydraulic releaser and shifting tool that allows the upper completion to be released from the lower completion in response to hydraulic pressure, enabling axial and rotational movement, and facilitating precise placement of components within a wellbore.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If shear up or shear down processes are used to manipulate completions, then the completions can be rendered fit to convey fluid or be separated, but efficiency is lost due to separate manipulation requirements
Solution Approach 1:
The patent combines the upper completion and lower completion into a single integrated completion string that can be manipulated as one unit. The hydraulic releaser mechanism allows both completions to be released and positioned simultaneously through a single operation, eliminating the need for separate shear up and shear down processes and thereby improving efficiency while reducing operational complexity.
Solution Approach 2:
The completion string is designed with multi-functional capabilities where a single system performs both the functions of upper and lower completion manipulation. The hydraulic releaser serves multiple purposes: releasing the connection between upper and lower completions, enabling axial movement, and facilitating rotational movement, all through a unified mechanism that replaces multiple separate operations.
2Manufacturing precision
If upper completion is permanently installed without temporary workstring, then placement precision is improved, but the complexity of the installation system increases
Solution Approach 1:
The completion string is pre-configured with the hydraulic releaser and connection mechanisms before installation. The upper and lower completions are assembled in a predetermined configuration that enables precise placement upon release. This preliminary preparation eliminates the need for temporary workstrings during installation while maintaining precision, as the system is designed to self-position accurately when the hydraulic releaser activates.
Solution Approach 2:
The hydraulic releaser acts as an intermediary mechanism that enables precise placement of the upper completion without requiring temporary workstrings. It mediates the transition from a connected state to a released state, allowing the upper completion to be accurately positioned relative to the lower completion through controlled hydraulic activation rather than manual manipulation with temporary equipment.
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
Enhances efficiency by allowing the upper completion to be permanently installed without a temporary workstring, improving placement precision and reducing the need for separate manipulation steps, thus optimizing well completion operations.
Implementation Method 1
releasing a hydraulic releaser with applied tubing pressure
Data Source
AI summary
A completion string, including an upper completion having a shifting tool, and a lower completion having a hydraulic releaser and a valve responsive to the shifting tool. A method for completing a well, including running the completion string in a borehole, establishing pressure integrity, applying tubing pressure to release the hydraulic releaser, and shifting the valve. A method for completing a well, including running an upper completion connected to a lower completion into a borehole, releasing a hydraulic releaser with applied tubing pressure, and shifting a valve in the lower completion with movement of the upper completion. A wellbore system, including a borehole in a subsurface formation, an upper completion and a lower completion in the borehole, a hydraulic releaser connecting the upper completion to the lower completion, the hydraulic releaser being responsive to applied tubing pressure to releaser the upper completion from the lower completion.