Radiation-Activated Well Treatment Capsules for Targeted Release
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Solution Overview
Problem
Existing well treatments in oil and gas operations often require excessive fluids or active reagents, can expose non-target areas of the wellbore to treatment, necessitate long well shut-ins, and involve additional equipment like slickline or wireline tools, and strong acids can be corrosive and inefficient.
Innovation Solution
A system and method using a capsule containing a treatment agent and a radiation source to deliver a targeted well treatment, where the capsule is activated by radiation at the target location to release the agent, minimizing exposure and equipment use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing treatment methods are used to ensure hydrocarbon flow, then treatment effectiveness is achieved, but excessive amounts of fluids or active reagents are required
Solution Approach 1:
The treatment agent is delivered in an encapsulated form that releases the active substance only at the specific target location within the wellbore. This localized delivery ensures treatment effectiveness while minimizing the total quantity of reagents required, as the agent is not dispersed throughout the entire wellbore but concentrated at the treatment zone.
Solution Approach 2:
A radiation-sensitive capsule acts as an intermediary carrier that transports the treatment agent downhole and releases it only upon radiation exposure at the target location. This intermediary mechanism prevents premature release and ensures the agent is delivered precisely where needed, reducing overall fluid and reagent usage.
2Reliability
If existing treatment methods are used to treat blockages, then treatment coverage is achieved, but non-target areas of the wellbore are exposed to treatment
Solution Approach 1:
The encapsulated treatment agent releases its active substance only at the specific target location where radiation is applied, ensuring that blockages are treated while non-target areas remain unaffected. This localized release mechanism provides precise treatment coverage without exposing other portions of the wellbore to the treatment agent.
Solution Approach 2:
The treatment system segments the delivery and release of the treatment agent into distinct phases: transport in encapsulated form, radiation-triggered activation at target location, and localized release. This segmentation ensures that only the specific blocked zone receives treatment, preventing collateral damage to other wellbore sections.
3Reliability
If existing treatment methods are used to deliver treatment agents, then treatment is achieved, but long well shut-ins are required
Solution Approach 1:
The system replaces mechanical delivery methods (such as slickline or wireline tools) with a circulation-based delivery system that transports encapsulated treatment agents downhole. The radiation-sensitive capsule is activated by radiation exposure at the target location, enabling treatment without requiring long well shut-ins or complex mechanical intervention tools.
4Reliability
If existing treatment methods are used to treat wellbore, then treatment effectiveness is achieved, but additional equipment such as slickline or wireline tools are required
Solution Approach 1:
The invention replaces complex mechanical delivery systems (slickline, wireline tools) with a simplified circulation-based delivery method. The radiation-sensitive capsule is transported downhole via circulation fluid and activated by radiation exposure, eliminating the need for additional complex equipment while maintaining treatment effectiveness.
Solution Approach 2:
The radiation-sensitive capsule serves as an intermediary that simplifies the treatment system by combining transport, protection, and activation functions in a single component. This intermediary approach eliminates the need for complex mechanical delivery tools, reducing device complexity while ensuring effective treatment delivery.
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 system provides precise, efficient delivery of treatment agents while reducing overall fluid usage and avoiding collateral damage, allowing for targeted treatment without shutting in the well.
Implementation Method 1
activating the radiation source and emitting radiation that intimately intermingles with the well treatment composition at the target location
Data Source
AI summary
A well treatment composition may include a capsule and a treatment agent solution within the capsule. The treatment agent solution may have a treatment agent. The system may include a radiation source: neutron, gamma, X-ray, and/or ultraviolet. A method may include introducing the well treatment composition downhole in wellbore circulation fluid, and introducing a radiation source into the wellbore and positioning the radiation source. The method may include activating the radiation source and emitting radiation that intermingles with the well treatment composition at a target location. The method may include maintaining the wellbore to allow emitted radiation from the activated radiation source to react with the well treatment composition, forming a radiation activated well treatment composition. The method may include allowing the radiation activated well treatment composition to disintegrate or dissolve, breaking encapsulation and releasing treatment agent at the target location.