Corn Syrup Additive for Drilling Fluid Lubrication and Wellbore Stability
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Solution Overview
Problem
Current drilling fluids face challenges with environmental safety, efficiency, and wellbore stability due to the use of water, diesel oil, and synthetic hydrocarbons, which are either costly, polluting, or inefficient in maintaining wellbore size and lubrication.
Innovation Solution
A drilling fluid additive composed of corn syrup solids or syrup solids in combination with a liquid medium, such as water, which improves lubrication, reduces clay hydration, and maintains wellbore stability, while being environmentally friendly and non-toxic, with concentrations of corn syrup solids ranging from 30% to 80% by volume.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If water is used as the continuous liquid phase of drilling fluid, then environmental safety and economy are improved, but lubrication and wellbore stability are insufficient
Solution Approach 1:
The invention uses a composite material system combining carbohydrates (corn syrup solids, starch, or cellulose) with a liquid medium (water, diesel oil, or synthetic oil) to create a drilling fluid additive. This composite approach allows the fluid to maintain the environmental benefits of water-based formulations while achieving the lubrication and stability properties typically associated with oil-based fluids. The carbohydrate component modifies the fluid's interaction with wellbore surfaces, providing both environmental safety and operational reliability.
2Ease of manufacture
If diesel oil is used as the continuous liquid phase of drilling fluid, then economy is improved, but environmental safety deteriorates due to contamination and remediation costs
Solution Approach 1:
The carbohydrate additive acts as an intermediary substance that enables water-based drilling fluids to achieve performance characteristics previously only attainable with diesel oil or synthetic hydrocarbons. By adding corn syrup solids, starch, or cellulose to the water-based fluid, the formulation gains improved lubrication and wellbore stability without sacrificing environmental safety or incurring the high costs associated with oil-based fluid remediation.
3Reliability
If synthetic hydrocarbon or olefin is used as the continuous liquid phase of drilling fluid, then lubrication and wellbore stability are improved, but cost and availability deteriorate
Solution Approach 1:
The invention changes the chemical composition parameters of water-based drilling fluids by incorporating carbohydrates (corn syrup solids, starch, or cellulose) at specific concentrations. This parameter modification allows the fluid to achieve lubrication and wellbore stability properties comparable to expensive synthetic hydrocarbon-based fluids, while maintaining the cost-effectiveness and availability of water-based formulations.
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 additive effectively suppresses clay hydration, maintains wellbore size, and provides lubrication comparable to oil-based fluids, with an LC50 rating greater than 1,000,000, indicating high environmental safety and efficiency.
Implementation Method 1
the additive suppresses and restricts hydration of clays and shales when deposed into a wellbore
Implementation Method 2
the additive improves the lubrication and reduces the coefficient of friction on the water phase of the drilling fluid
Data Source
AI summary
A drilling fluid additive is provided and the additive consist of: syrup solids in the amount from about 30 to about 90% by weight of total volume of the additive and a liquid medium in the amount from about 10 to about 70% by weight of total volume of the additive, said syrup solids are derived from a group consisting essentially of agave syrup, barley syrup, sugar syrup, beets syrup, birch syrup, rice syrup, cane syrup, chocolate syrup, coconut syrup, corn syrup, date syrup, fruit syrup, golden syrup, high fructose corn syrup, karo syrup, citrus fruit syrup, maple syrup, molasses, Muscavado syrup, palm syrup, rice syrup, sorghum syrup, Turbinado syrup, vanilla syrup and mixtures and blends thereof.