Dynamic Fracture Testing Apparatus for Diverting Agents
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Solution Overview
Problem
Conventional laboratory testing methods and equipment for diverting agents in fracturing operations fail to simulate the dynamic conditions found in subterranean formations, leading to inaccurate evaluations of diverting agent performance and potential misuse in real-world applications.
Innovation Solution
A dynamic testing apparatus with movable plates and accumulators that simulate changing fracture geometry and pressure conditions, allowing for the evaluation of diverting agents under realistic downhole conditions by altering the width of the flow channel in a transverse direction relative to fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional laboratory testing methods with fixed geometry are used, then the testing equipment is simple and easy to operate, but the evaluation accuracy of diverting agent performance is poor because it fails to simulate dynamic downhole conditions
Solution Approach 1:
The testing apparatus incorporates movable plates that can dynamically adjust the fracture geometry during testing, transforming the static fixed-geometry setup into a dynamic system that simulates real downhole conditions where fracture width changes over time. This dynamic capability enables accurate evaluation of diverting agent performance under realistic conditions.
Solution Approach 2:
The apparatus pre-configures movable plates and accumulators to simulate downhole pressure conditions and fracture geometry changes before actual diverting agent testing begins. This preliminary setup establishes realistic boundary conditions that accurately represent field conditions.
2Adaptability or versatility
If fixed geometry testing chambers are used, then the device structure is simple, but it cannot simulate the changing fracture width and pressure conditions found in real subterranean formations
Solution Approach 1:
Movable plates are integrated into the testing chamber to allow dynamic adjustment of fracture width during testing, enabling the apparatus to adapt to different downhole conditions and simulate the evolving geometry of real fractures as diverting agents are deployed.
Solution Approach 2:
The apparatus introduces an additional degree of freedom by allowing movement in the transverse direction (perpendicular to fluid flow), enabling simulation of fracture width changes that occur in real downhole conditions. This dimensional change allows the system to represent more realistic three-dimensional fracture behavior.
3Reliability
If diverting agents are tested under static conditions, then the testing process is simple and quick, but the results do not reflect the loosening of blockage that occurs when fracture width changes in real applications
Solution Approach 1:
The testing system dynamically changes fracture width during the testing process to simulate the loosening of diverting agent blockage that occurs in real downhole conditions. This dynamic simulation provides reliable testing results that accurately reflect field performance.
Solution Approach 2:
The apparatus incorporates pressure sensors and flow meters that provide real-time feedback on diverting agent performance as fracture geometry changes. This feedback mechanism allows continuous monitoring and adjustment to maintain realistic simulation conditions throughout the testing process.
Data Source
AI summary
A system and method of testing diverting agents may include injecting a diverting agent into a testing device. The system may be configured to inject a diverting agent into a testing device configured to receive a fluid through a flow channel and, change the flow channel in a transverse direction relative to the direction of the fluid flow.