Shaped Charge Testing With Direct Wellbore And Formation Pressure
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Solution Overview
Problem
Existing testing systems for shaped charges used in perforating guns do not accurately deliver pressures to simulate well conditions, leading to inaccurate results due to pressure mismatches and delays.
Innovation Solution
A novel testing system that eliminates pipes connecting accumulators to the casing assembly and sample formation, allowing for direct and instantaneous pressure delivery from wellbore and formation accumulators, simulating actual well pressures more accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If pipes are used to connect accumulators to the casing assembly and sample formation, then the system structure is complete and fluid can be supplied, but the pressure delivery is delayed and inaccurate
Solution Approach 1:
The patent removes the pipes that connected the accumulators to the casing assembly and sample formation in prior art systems. By extracting these intermediate fluid conduits, the accumulators are placed in direct contact with the test article, enabling instantaneous pressure delivery without the time delay and pressure loss that occurred through piping systems.
Solution Approach 2:
The patent eliminates the pipe intermediary between the accumulators and the test article. By removing this mediating component, the system achieves direct pressure transmission from the accumulators to the casing assembly and sample formation, improving both the speed and accuracy of pressure simulation.
2Reliability
If pipes connect accumulators to the casing assembly, then fluid supply is established, but pressure delivery is not instantaneous
Solution Approach 1:
The patent extracts and removes the piping system that connected accumulators to the test article. This elimination of intermediate fluid pathways enables direct, instantaneous pressure delivery from the accumulators, simultaneously improving both the speed of pressure application and the reliability of pressure simulation accuracy.
3Measurement precision
If traditional testing system configuration is used, then system assembly is straightforward, but pressure simulation accuracy is compromised
Solution Approach 1:
The patent removes the complex piping network required in traditional systems to connect accumulators to the test article. By extracting these intermediate components, the system achieves more accurate pressure simulation through direct contact, while actually simplifying the overall system configuration rather than increasing 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 system provides accurate and instantaneous pressure simulation, enhancing the accuracy of shaped charge testing by ensuring that pressures are delivered as intended at the time of charge firing.
Implementation Method 1
a wellbore accumulator in direct contact with the casing assembly and configured to supply a first fluid, at a wellbore pressure, inside the casing assembly
Implementation Method 2
a formation accumulator in direct contact with the sample material and configured to supply a second fluid, at a formation pressure, on the sample material
Implementation Method 3
The shape charges are carried within the perforating guns. After being fired, each shaped charge makes not only a hole in the casing of the well, but also a corresponding tunnel in the formation around the well
Implementation Method 4
each shaped charge makes not only a hole in the casing of the well, but also a corresponding tunnel in the formation around the well
Data Source
AI summary
A testing system for a shaped charge of a perforating gun, the testing system including a housing; a casing assembly located inside the housing; a perforating gun having at least one shaped charge, the perforating gun being located within the casing assembly; a sample material located within the housing, and in direct contact with the casing assembly; a wellbore accumulator in direct contact with the casing assembly and configured to supply a first fluid, at a wellbore pressure, inside the casing assembly; and a formation accumulator in direct contact with the sample material and configured to supply a second fluid, at a formation pressure, on the sample material.