Wellbore Tool Coating via Organometallic Lubricant Decomposition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wellbore tools and components face damage and corrosion due to exposure to harsh conditions during drilling and other operations, leading to premature failure and increased costs for repair or replacement.
Innovation Solution
A method and tool system that utilizes an organometallic compound lubricant to form protective metal coatings on surfaces of wellbore tools during operation, which are exposed to high temperatures to decompose and form durable, self-healing coatings, reducing wear and friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If protective coatings are applied over surfaces of tool components during manufacture, then the tools have initial protection against corrosion and wear, but the coatings become scratched and damaged during use, exposing metal underneath and leading to premature failure
Solution Approach 1:
The organometallic compound is pre-loaded into the lubricant system before tool operation begins. When the tool operates, the compound is automatically delivered to surfaces needing protection, forming protective metal coatings before significant damage can occur. This preliminary preparation ensures protection is available from the start of operation.
Solution Approach 2:
The system uses the tool's own operational conditions (heat, friction, movement) to activate the organometallic compound and form protective coatings automatically. The lubricant system self-regulates by delivering compound to damaged areas where it is most needed, without external intervention. The compound decomposes and deposits metal precisely where wear or corrosion is occurring.
Solution Approach 3:
Instead of discarding damaged tools or replacing expensive coatings, the system recovers protective functionality by continuously depositing fresh metal from the organometallic compound onto worn surfaces. This extends tool life by repeatedly rebuilding protective layers in situ, effectively recovering the protective function without removing the tool from service.
2Productivity
If tools are operated in harsh wellbore conditions, then drilling and production operations can be performed, but the tool surfaces become damaged and corroded, leading to increased repair and replacement costs
Solution Approach 1:
The harmful operational conditions (high temperature, friction, mechanical stress) that cause wear and corrosion are converted into beneficial forces that activate the organometallic compound. The heat from friction decomposes the compound, and the mechanical movement distributes the lubricant, transforming the very conditions causing damage into mechanisms that provide protection.
Solution Approach 2:
The organometallic compound acts as an intermediary substance between the tool surfaces and the harsh wellbore environment. It forms a protective metal coating layer that mediates the interaction between the tool and corrosive/wear-inducing conditions, preventing direct contact and damage while allowing the tool to continue operating.
3Device complexity
If conventional lubricants are used without organometallic compounds, then the lubrication system is simple and cost-effective, but protective coatings cannot be formed on tool surfaces during operation
Solution Approach 1:
The organometallic compound changes its chemical parameters (decomposes) under operational conditions (temperature, pressure) to transform from a lubricant additive into a protective metal coating. This parameter change allows a single substance to serve dual functions: lubrication in its original state and protective coating formation after decomposition, without requiring separate systems.
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 protective coatings enhance the durability and reduce wear and friction of wellbore tools, leading to extended tool life and reduced maintenance costs by continuously forming and repairing the coatings in situ, even under harsh conditions.
Implementation Method 1
exposing at least one surface of at least one of the first and second bodies to a lubricant comprising an organometallic compound, and forming a protective coating over a surface of at least one body selected from the group consisting of the first body and the second body. The protective coating formed includes a metal of the organometallic compound.
Data Source
AI summary
A method of utilizing a wellbore tool in a subterranean formation includes disposing a wellbore tool in a borehole. The wellbore tool has a first body and a second body. The first body is translated relative to the second body while exposing at least one surface of at least one of the first and second bodies to a lubricant comprising an organometallic compound, and a protective coating forms over the first body and/or the second body. The protective coating formed includes a metal originating from the organometallic compound. A tool for forming or servicing a wellbore includes a first body; a second body configured to translate relative to the second body; and a lubricant adjacent the first body and the second body.