Downhole Sludge Dissolution Fluid for Single-Stage Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional sludge removal treatments in subterranean formations are incomplete, particularly for the inorganic phase, and often require multiple stages, increasing costs and time.
Innovation Solution
A single-stage treatment fluid comprising an organic solvent, surfactant, and organic acid, with a mutual solvent enhancing solubility, synergistically dissolving both organic and inorganic phases of hydrocarbon sludge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional single-stage treatment is used, then operation time and treatment cost are reduced, but sludge removal completeness deteriorates
Solution Approach 1:
The treatment fluid uses a composite formulation containing multiple active ingredients (organic solvent, surfactant, organic acid, and mutual solvent) that work synergistically to dissolve both organic and inorganic sludge components in a single stage, achieving complete removal without requiring multiple treatment stages
Solution Approach 2:
The invention changes the chemical parameters of the treatment fluid by incorporating a mutual solvent that enhances the solubility of the organic acid, allowing the fluid to effectively dissolve inorganic sludge components that would otherwise require separate treatment stages
2Reliability
If two-stage treatment is used, then sludge removal completeness is improved, but treatment cost and operation time increase
Solution Approach 1:
The invention merges the functions of organic phase dissolution and inorganic phase dissolution into a single treatment fluid formulation, eliminating the need for separate organic solvent stage and acid stage treatments
Solution Approach 2:
The treatment fluid is designed with multi-functionality, where the same fluid composition can dissolve both organic sludge components (via organic solvent and surfactant) and inorganic sludge components (via organic acid enhanced by mutual solvent), making it universally effective for mixed sludge removal
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 treatment effectively removes sludge obstructions in a single stage, reducing costs and time compared to multi-stage methods, while ensuring complete dissolution of both organic and inorganic phases.
Implementation Method 1
The organic solvent dissolves at least a first portion of an organic phase of the hydrocarbon sludge
Implementation Method 2
The mutual solvent increases solubility of the organic acid in the treatment fluid
Implementation Method 3
The surfactant and the organic acid synergistically increase solubility of the hydrocarbon sludge upon exposure to the treatment fluid
Implementation Method 4
The surfactant and the organic acid synergistically increase solubility of the hydrocarbon sludge
Implementation Method 5
The organic acid dissolves at least a portion of an inorganic phase of the hydrocarbon sludge
Data Source
AI summary
A composition can be used for downhole dissolution of a hydrocarbon sludge in a subterranean formation. The composition includes an organic solvent, a surfactant, an organic acid, and a mutual solvent. The organic solvent is configured to dissolve at least a first portion of an organic phase of the hydrocarbon sludge. The organic acid is configured to dissolve at least a portion of an inorganic phase of the hydrocarbon sludge. The surfactant and the organic acid are synergistically configured to increase solubility of the hydrocarbon sludge upon exposure to the composition. The mutual solvent is soluble in oil and in water. The mutual solvent is configured to dissolve at least a second portion of the organic phase of the hydrocarbon sludge. The mutual solvent is configured to increase solubility of the organic acid in the composition.