Nanoparticle Oxidizer Fracturing Fluid for Higher Rock Permeability
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Solution Overview
Problem
Existing hydraulic fracturing methods struggle to effectively increase porosity, channel connectivity, surface area, and permeability of rock formations, leading to suboptimal hydrocarbon production rates and requiring complex processing steps.
Innovation Solution
Incorporating nanoparticles and an oxidizer into fracturing fluids, specifically using silica and certain oxidizers with positive standard reduction potentials and suitable activation temperatures, to enhance fracture formation and improve rock formation properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional hydraulic fracturing methods are used, then fractures can be formed in rock formations, but the porosity, channel connectivity, surface area, and permeability are insufficient leading to suboptimal hydrocarbon production rates
Solution Approach 1:
The patent changes the physical and chemical parameters of the fracturing fluid by incorporating nanoparticles (0.1-10.0 wt%) and oxidizers (1-100 pptg) to fundamentally alter how the fluid interacts with rock formations. The nanoparticles modify fluid rheology and the oxidizer changes the chemical environment, enabling enhanced porosity and permeability development that directly improves hydrocarbon production rates
Solution Approach 2:
The patent creates a composite fracturing fluid system combining nanoparticles (such as silica, titanium oxide, zinc oxide) with oxidizers (such as hypochlorite, chlorite, chlorate, perchlorate, hypobromite, bromite, bromate, perbromate, peroxide, nitrite, nitrate, persulfate, tetraborate, percarbonate, iodate, periodate, chromate, dichromate, permanganate). This composite approach leverages the synergistic effects of both components to achieve superior fracture formation and rock property enhancement compared to conventional single-component fluids
2Productivity
If conventional fracturing fluids are used, then fractures can be created, but complex processing steps are required to achieve adequate fracture formation
Solution Approach 1:
The patent merges multiple functions into a single fracturing fluid composition: nanoparticles provide rheology modification and fracture enhancement while oxidizers simultaneously perform chemical treatment of the rock formation. This consolidation eliminates the need for separate processing steps, reducing operational complexity while maintaining high fracture formation efficiency
Solution Approach 2:
The fracturing fluid composition achieves multiple objectives simultaneously: it creates mechanical fractures through high-pressure injection, enhances porosity and permeability through nanoparticle deposition, and performs chemical treatment through oxidizer action. This multi-functionality reduces the number of separate processing steps required in conventional methods
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 composition increases porosity, connectivity, and permeability, thereby enhancing hydrocarbon production rates while reducing the complexity of fracture formation processes.
Implementation Method 1
the composition comprises uncrosslinked nanoparticles and an oxidizer... the oxidizer has a standard reduction potential of greater than 0.40 volts (V)... injecting the composition into a rock formation to form fractures in the rock formation
Data Source
AI summary
The disclosure relates to compositions and methods that include fluid compositions that include nanoparticles and an oxidizer. The fluid compositions can be used as hydraulic fracturing fluids during drilling operations.