Oil-Free Triple-Play Slick Water Concentrate for Fracturing
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Solution Overview
Problem
The logistical challenges of shipping and handling multiple chemical agents for slick water fracturing in remote shale oil and gas fields result in high transportation costs, increased operational risks, and personnel hazards due to the need for multiple tanks, pipelines, and blending systems.
Innovation Solution
A synergistic oil-phase-free triple-play slick water concentration solution is developed, combining a water-soluble dispersion polymer drag reducer, high-performance fluorocarbon surfactant, and quaternary ammonium clay stabilizer, which are mixed in a specific ratio to create a single concentrate that reduces drag, enhances water flowback, and stabilizes clay, requiring only a tank, pipeline, and pump for on-site use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple chemical agents are shipped and handled separately in remote shale oil and gas fields, then each chemical can be stored and used independently, but transportation costs increase, operational risks increase, and personnel hazards increase
Solution Approach 1:
The patent combines multiple chemical agents (drag reducer, flowback surfactant, and clay stabilizer) into a single integrated slick water concentrate formulation. This merging eliminates the need for separate storage tanks, pipelines, and handling systems for each chemical, thereby reducing operational complexity and personnel exposure risks while maintaining all necessary functions
Solution Approach 2:
The slick water concentrate is designed as a multi-functional solution that simultaneously provides drag reduction, flowback enhancement, and clay stabilization properties. This universal formulation replaces multiple specialized chemicals with a single agent that performs all required functions, simplifying the overall system
2Stability of the object's composition
If multiple tanks and specialized storage areas are used for chemical agents, then each chemical can be stored safely, but logistical costs and operation risks increase
Solution Approach 1:
Multiple chemicals are merged into a single stable concentrate formulation that maintains chemical compatibility and stability. The formulation is designed to remain stable during storage and transport, eliminating the need for multiple specialized storage facilities while preserving all functional properties
Solution Approach 2:
The patent modifies the chemical parameters and concentrations of individual agents to create a stable integrated formulation. By adjusting pH, concentration, and compatibility parameters, the concentrate maintains stability without requiring complex storage conditions or multiple separate containers
3Productivity
If multiple pipes, pressure manifolds for blending and pumping are used, then chemical agents can be delivered to the well, but manpower requirements and HSE risks greatly increase
Solution Approach 1:
The concentrate combines all chemical agents into a single deliverable product that requires only one piping system, one pump, and one injection point. This eliminates the complex network of multiple pipes, pressure manifolds, and blending equipment, significantly reducing manpower requirements and HSE risks while maintaining full chemical delivery capability
4Device complexity
If a simplified all-in-one slick water concentrate is developed, then transportation and storage costs are minimized and personnel HSE risks are mitigated, but achieving synergistic multiple functions in one solution becomes challenging
Solution Approach 1:
The slick water concentrate is formulated with multiple functional components that work synergistically: drag reducers for viscosity modification, flowback surfactants for fluid recovery enhancement, and clay stabilizers for formation protection. This multi-functional design achieves all necessary properties in a single solution
Solution Approach 2:
The patent creates a composite chemical formulation that integrates multiple functional agents into a single concentrate. The composite structure allows different chemical components to work together synergistically, providing drag reduction, flowback enhancement, and clay stabilization simultaneously while maintaining system simplicity
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 solution achieves over 70% drag reduction, low surface tension, and effective clay stabilization, reducing the need for multiple chemicals and equipment, thereby minimizing transportation and operational risks while maintaining high performance during hydraulic fracturing.
Implementation Method 1
drag reduction, the extent of which can reach over 70% during hydraulic fracturing
Implementation Method 2
the surface tension as low as below 30 mN/m, the interfacial tension being 0.1 mN/m or less
Implementation Method 3
high-performance water-soluble fluorocarbon surfactant
Implementation Method 4
water-soluble of high-performance small molecule or macromolecule clay stabilizer containing quaternary ammonium ions; clay-swelling prevention of greater than 70%
Data Source
AI summary
An oil-phase-free triple-play slick water concentration system, is characterized by first synthesizing a water-soluble dispersion polymer drag reducer A; and then preparing an inorganic salt solution B, under mechanical agitation, of high-performance water-soluble fluorocarbon surfactant and a water-soluble of high-performance small molecule or macromolecule clay stabilizer containing quaternary ammonium ions; and finally, the aqueous inorganic salt solution B is slowly added to the drag reducer dispersion A, wherein the ratio of the aqueous inorganic salt solution B and the dispersion A is 20-80:80-20.