Shaped Charge Liners With Integrated Tracers for Clear Perforations
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Solution Overview
Problem
Conventional shaped charge liners leave residues or skins in perforation tunnels, limiting hydrocarbon production and perforation effectiveness due to incomplete dissolution and improper material burn-off during detonation.
Innovation Solution
The use of Bulk Metallic Glass Composite (BMGC) and High Entropy Alloy (HEA) materials in shaped charge liners, which react via shock-induced entropy change to form high-angle domain boundaries, ensuring complete dissolution and maintaining jet elasticity, combined with tracers deposited in the perforation tunnel for identification and flowback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional shaped charge liners are used, then the shaped charge is protected during transport and run-in-hole, but residues or skins are left in perforation tunnels limiting hydrocarbon production
Solution Approach 1:
The liner material composition is changed from conventional metals to a powder complex containing copper-lead mixture, bulk metallic glass composite, and high entropy alloy. This parameter change enables complete dissolution during detonation while maintaining protection during transport, eliminating residue formation that blocks hydrocarbon flow.
Solution Approach 2:
A composite powder complex is used instead of single-material liners. The complex includes copper-lead mixture, bulk metallic glass composite, and high entropy alloy, which work together to provide protection during transport and complete dissolution during detonation, preventing residue formation in perforation tunnels.
2Stability of the object's composition
If conventional liners are used, then the shaped charge structure is maintained, but incomplete dissolution occurs during detonation leaving residue
Solution Approach 1:
The material composition parameters are changed to include dissolvable alloys with specific melting points and reactivity characteristics. The copper-lead mixture, bulk metallic glass composite, and high entropy alloy are selected to maintain structural integrity during transport but dissolve completely during detonation, eliminating residue.
Solution Approach 2:
The liner material undergoes phase transition from solid during transport to molten state during detonation. The powder complex materials are designed to melt and dissolve completely at the temperatures and pressures generated during shaped charge detonation, ensuring no residue remains in the perforation tunnel.
3Ease of manufacture
If traditional liner materials are used, then manufacturing is simple, but tracer identification and flowback monitoring are not enabled
Solution Approach 1:
Tracers are merged with the liner powder complex material. The tracers are incorporated into the powder mixture before forming the liner, so that when the liner detonates and dissolves, the tracers are released into the production fluid stream, enabling flowback monitoring without complicating the manufacturing process.
Solution Approach 2:
The tracer acts as an intermediary substance that links the liner material to the production fluid. The tracers are deposited in the perforation tunnel with the liner material and then flow back with the production fluid, providing a detectable signal for monitoring hydrocarbon flow and production effectiveness.
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 solution ensures clear perforation tunnels for enhanced hydrocarbon flowback by preventing residue formation and enabling tracer detection for improved operational insights.
Implementation Method 1
Upon detonation of the shaped charge a perforation tunnel is formed in a casing and into a formation in a well
Implementation Method 2
Bulk Metallic Glass Composite (BMGC) and High Entropy Alloy (HEA) materials in shaped charge liners, which react via shock-induced entropy change to form high-angle domain boundaries
Implementation Method 3
wherein detonation deposits the tracers in the perforation tunnel
Implementation Method 4
wherein the tracers flow back with production fluid through the perforation tunnel
Data Source
AI summary
A liner for a shaped charge having integrated tracers. The liner, when the associated shaped charge is detonated, does not create a plug, carrot, or residue in the created perforation tunnel. The liner includes integrated tracers that, after detonation, are scattered into the perforation tunnel and then begin to flow back in formation fluid flow and are identifiable in the flow.


