Phospho-friction Agents for Drilling Fluids
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Solution Overview
Problem
Existing friction reducing agents for oleaginous-based drilling fluids are underdeveloped and require high concentrations to be effective, especially at higher temperatures and pressures, leading to increased energy losses and costs during wellbore drilling operations.
Innovation Solution
The use of phospho-friction reducing agents, such as phosphonates and thiophosphonates, at relatively low concentrations (about 0.5 v/v % or less) in oleaginous-based drilling fluids to reduce the coefficient of friction, thereby enhancing drilling rates and reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If friction reducing agents are added to oleaginous-based drilling fluids, then energy losses due to friction are reduced, but the agents require high concentrations to be effective which increases the quantity of substance added
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of friction reducing agents to create phospho-friction reducing agents with phosphonate or thiophosphonate groups. These structural parameter changes enable the agents to be effective at lower concentrations (0.01-5.0 wt%) compared to traditional agents, while maintaining or improving friction reduction performance in oleaginous-based drilling fluids across a range of temperatures and pressures.
2Loss of energy
If higher concentrations of friction reducing agents are used, then friction is reduced more effectively, but the cost of the drilling fluid increases
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of friction reducing agents to create phospho-friction reducing agents with phosphonate or thiophosphonate groups. These structural parameter changes enable the agents to be effective at lower concentrations (0.01-5.0 wt%) compared to traditional agents, while maintaining or improving friction reduction performance in oleaginous-based drilling fluids across a range of temperatures and pressures.
3Loss of energy
If traditional friction reducing agents are used in oleaginous-based drilling fluids, then friction is reduced, but the agents require relatively high concentrations which increases energy consumption costs
Solution Approach 1:
The patent applies parameter changes by modifying the chemical structure of friction reducing agents to create phospho-friction reducing agents with phosphonate or thiophosphonate groups. These structural parameter changes enable the agents to be effective at lower concentrations (0.01-5.0 wt%) compared to traditional agents, while maintaining or improving friction reduction performance in oleaginous-based drilling fluids across a range of temperatures and pressures.
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 phospho-friction reducing agents effectively decrease the coefficient of friction in oleaginous-based drilling fluids, allowing for higher rates of penetration with less energy consumption, thereby reducing drilling time and costs, especially in offshore operations.
Implementation Method 1
phospho-friction reducing agents, which reduce the coefficient of friction of the oleaginous-based drilling fluid
Data Source
AI summary
Phospho-friction reducing agents may include phosphonates, thiophosphonates, and derivatives thereof. The phospho-friction reducing agents may be included in drilling fluids with oleaginous base fluids and used in methods that involve drilling a wellbore penetrating a subterranean formation. Further, the phospho-friction reducing agents may be useful at relatively low concentrations in the drilling fluids (e.g., about 0.001 v/v % to about 0.5 v/v % of the drilling fluid).