Gas Generating Element for Downhole Deposit Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for controlling deposit buildup in the oil and gas industry, such as using scale inhibitors and remediation tools, often require costly well intervention and are not always effective or feasible, especially in harsh downhole environments where corrosive fluids lead to the formation of inorganic and organic compounds that interfere with equipment function and reduce well production.
Innovation Solution
A method and system that utilizes a gas generating element with an active material, such as a metal alloy, to produce in-situ gas that reacts with downhole fluids, which then controls deposit buildup by removing or preventing the accumulation of compounds like CaCO3, BaSO4, and hydrates on tubular members and flow assemblies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If scale inhibitors and remediation tools are used to control deposit buildup, then deposit accumulation is reduced, but costly well intervention and non-productive time are required
Solution Approach 1:
The gas generating element performs preliminary action by continuously producing gas bubbles that prevent deposit formation before it occurs. The active material reacts with downhole fluids to generate gas in-situ, creating a preventive barrier against deposit accumulation on tubular members, eliminating the need for periodic remediation interventions
Solution Approach 2:
The system is self-service as the gas generating element autonomously produces gas bubbles through chemical reaction between the active material and downhole fluids. The element continuously generates gas without external input, maintaining deposit control automatically throughout its service life without requiring well intervention or external power sources
2Reliability
If remediation tools such as abrasive jets are used to remove deposits, then deposit accumulation is reduced, but costly well intervention and equipment damage risk are required
Solution Approach 1:
The system converts the harmful effect of downhole fluids into a beneficial gas generation process. The active material reacts with the corrosive downhole fluids to produce gas bubbles that control deposit formation, transforming the previously harmful fluid contact into a useful function that prevents deposits without damaging equipment
Solution Approach 2:
The invention replaces mechanical remediation systems (abrasive jets, mechanical scrapers) with a chemical-gas based system. Instead of using mechanical force to remove deposits, the system uses gas bubbles generated by chemical reaction to prevent deposit formation, eliminating the need for mechanical intervention and reducing equipment damage risk
3Reliability
If hydrophobic coatings are applied to critical areas, then deposit buildup is reduced, but additional processing steps and cost are required
Solution Approach 1:
The invention extracts the deposit prevention function from complex surface coating processes and implements it through a simpler gas generation mechanism. Instead of applying hydrophobic coatings to tubular members, the system introduces a gas generating element that produces bubbles to prevent deposits, eliminating the need for specialized coating applications and associated processing complexity
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 in-situ generated gas effectively reduces deposit accumulation by creating localized pressure, removing contaminants, and reducing nucleation sites, thereby maintaining equipment functionality and enhancing well production without the need for frequent interventions.
Implementation Method 1
reacting an active material in a gas generating element with a fluid that contacts the gas generating element to generate a gas
Implementation Method 2
The in-situ generated gas effectively reduces deposit accumulation by creating localized pressure, removing contaminants
Data Source
AI summary
A method of controlling deposit buildup comprises generating a gas by reacting an active material in a gas generating element with a fluid that contacts the gas generating element; and controlling deposit buildup with the generated gas.