Shock Mitigation System for Subterranean Telemetry
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Solution Overview
Problem
Shock loads from perforating gun assemblies can damage or destroy components of subterranean communication systems, such as acoustical telemetry systems, during wellbore operations, disrupting their functionality.
Innovation Solution
A shock mitigation system is physically coupled with the subterranean communication system, utilizing a clutch and shock absorbers to absorb and mitigate shock loads, ensuring continued operation by allowing controlled movement of acoustical members and maintaining acoustic coupling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a perforating gun assembly is fired to perforate the formation, then hydrocarbon production is enabled, but shock loads are generated that can damage or destroy telemetry system components
Solution Approach 1:
The patent applies beforehand cushioning by positioning a shock-absorbing element between the perforating gun assembly and the telemetry system components before the perforation operation. This cushioning element is designed to absorb and mitigate the shock loads generated during gun firing, protecting the telemetry system from damage while enabling the perforation process to proceed.
2Reliability
If shock mitigation components are added to protect the telemetry system, then component protection is improved, but device complexity increases
Solution Approach 1:
The patent applies the nested doll principle by integrating the shock mitigation system within the existing tool string architecture. The shock-absorbing elements are nested between the perforating gun assembly and the telemetry system components, utilizing the existing structural space without requiring separate external protection systems. This approach provides effective protection while minimizing the increase in overall device 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 shock mitigation system effectively absorbs and dissipates shock energy, protecting communication system components from damage, allowing for uninterrupted signal transmission and subsequent shock load absorption, thereby ensuring the continued operation of subterranean communication systems during perforating procedures.
Implementation Method 1
A shock mitigation system is physically coupled with the subterranean communication system to mitigate such shock loads. The shock mitigation system comprises components which reduce various effects of shock loads
Implementation Method 2
utilizing a clutch and shock absorbers to absorb and mitigate shock loads, ensuring continued operation by allowing controlled movement of acoustical members and maintaining acoustic coupling
Data Source
AI summary
A technique facilitates mitigation of shock loads. Subterranean communication systems may comprise components susceptible to various shock loads. A shock mitigation system is physically coupled with the subterranean communication system to mitigate such shock loads. The shock mitigation system comprises components selected to enable reduction of various effects of shock loads, e.g. shock loads resulting from perforating procedures, which could otherwise be detrimental to continued operation of the subterranean communication system.