Time-Released Iron Control Agents for Well Treatment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Iron control is a significant challenge in well operations, particularly during fracturing and remediation processes, as it can lead to plugging and erosion, originating from well equipment and formation sources, and existing treatments interfere with chemicals used in these processes.
Innovation Solution
The use of time-released forms of complexing or reducing agents that form soluble products with iron, providing varying time-release profiles to control iron effectively, including multiple peaks or continuous release, using encapsulation techniques to prevent premature loss and ensure interaction at the desired time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional iron control treatments are used, then iron is controlled, but they interfere with chemicals used in fracturing and remediation processes
Solution Approach 1:
The patent applies preliminary action by incorporating iron control agents into the treatment fluid before the fracturing or remediation process begins. This allows the agents to be positioned in advance to control iron as it is released during the process, preventing plugging and erosion before they occur, while maintaining compatibility with other chemicals through pre-coordination of the fluid composition.
2Reliability
If iron control agents are added to treatment fluid, then iron plugging and erosion are prevented, but the complexity of the treatment fluid increases
Solution Approach 1:
The patent applies universality by selecting iron control agents that serve multiple functions within the treatment fluid. These agents not only control iron to prevent plugging and erosion but also maintain compatibility with other chemicals in the fluid system. This multi-functionality reduces the need for separate specialized additives, thereby managing fluid composition complexity while achieving reliable iron control.
3Productivity
If iron control is implemented during fracturing, then well performance is improved, but the cost and complexity of the process increases
Solution Approach 1:
The patent applies merging by combining iron control functionality with the existing fracturing and remediation processes. Instead of implementing iron control as a separate step, the agents are integrated into the treatment fluid that is already being used for fracturing or remediation. This combination achieves improved well performance through iron control without adding significant process complexity, as the same fluid system performs both the primary function and iron control.
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 approach effectively controls iron, forming soluble products that are less harmful, reducing interference with other chemicals and improving well performance by preventing plugging and erosion, thus enhancing fracturing and production efficiency.
Implementation Method 1
a time-released form of a complexing agent or reducing agent, wherein the agent forms a soluble product with iron
Implementation Method 2
a time-released form of a complexing agent or reducing agent, wherein the agent forms a soluble product with iron
Implementation Method 3
using encapsulation techniques to prevent premature loss and ensure interaction at the desired time
Data Source
AI summary
In a well in a subterranean formation, treatment fluids for time-released iron control are utilized. These treatment fluids contain a time-released form of a complexing agent or reducing agent, wherein the agent forms a soluble product with iron. The time-released form prevents loss of the agent prior to delivery to the desired site and at the desired time(s). Methods for controlling iron in a well in a subterranean formation utilize these treatment fluids containing a time-released form of a complexing agent or reducing agent and these methods create soluble products when the agent interacts with the iron to control the iron from the formation and/or well.